stage 0 database schema ready

.gitignore

@@ -48,6 +48,6 @@ go.work.sum
 .env
 
 # Editor/IDE
-# .idea/
-# .vscode/
-
+.idea/
+.vscode/
+gitpushlink

backend/databaseDirect.go

@@ -1 +1,62 @@
-package backend
+package main
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"os"
+	"skyrama_clone_backend/backend/db"
+
+	_ "github.com/go-sql-driver/mysql" // MySQL Driver
+	"golang.org/x/crypto/bcrypt"
+)
+
+func create_user(queries *db.Queries, ctx context.Context, username string, password string) {
+
+	hashedPass, _ := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+
+	resultt, err := queries.CreateUser(ctx, db.CreateUserParams{
+		Username:     username,
+		PasswordHash: string(hashedPass),
+	})
+	if err != nil {
+		fmt.Printf("Error at operation : %v\n", err)
+		os.Exit(1)
+	}
+	fmt.Println(resultt)
+	fmt.Printf("added user : %s ", username)
+}
+func update_user(queries *db.Queries, ctx context.Context, username string, password string) {
+
+	hashed_pass, _ := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+
+	err := queries.UpdateUserPasswordByUserName(ctx, db.UpdateUserPasswordByUserNameParams{
+		PasswordHash: string(hashed_pass),
+		Username:     username,
+	})
+	if err != nil {
+		fmt.Printf("Error at operation : %v\n", err)
+		os.Exit(1)
+	}
+	fmt.Printf("updated user : %s  with %s \n", username, string(hashed_pass))
+	fmt.Println("successfully updated user")
+}
+
+func main() {
+
+	dsn := "skyramaUser:Skyrama1234.@tcp(127.0.0.1:3306)/skyrama_clone?parseTime=true"
+	dbConn, err := sql.Open("mysql", dsn)
+	if err != nil {
+		fmt.Printf("Error opening database pool: %v\n", err)
+		os.Exit(1)
+	}
+	defer dbConn.Close()
+	if err := dbConn.Ping(); err != nil {
+		fmt.Printf("Database unreachable: %v\n", err)
+		os.Exit(1)
+	}
+	ctx := context.Background()
+	queries := db.New(dbConn)
+	create_user(queries, ctx, "tester_adnan", "a")
+	//update_user(queries, ctx, "tester_adnan", "a")
+}

backend/db/config/queries.sql

@@ -0,0 +1,336 @@
+-- ============================================================================
+-- 1. AUTHENTICATION & USERS
+-- ============================================================================
+
+-- name: CreateUser :execresult
+INSERT INTO users (username, password_hash) 
+VALUES (?, ?);
+
+-- name: UpdateUserPasswordByUserName :exec
+UPDATE users 
+SET password_hash = ? 
+WHERE username = ?;
+
+-- name: GetUserByUsername :one
+SELECT id, username, password_hash 
+FROM users 
+WHERE username = ? LIMIT 1;
+
+-- name: GetUserIdByUsername :one
+SELECT id 
+FROM users 
+WHERE username = ? LIMIT 1;
+
+-- name: DeleteUserByUsername :exec
+UPDATE users
+SET deleted_at = CURRENT_TIMESTAMP
+WHERE username = ?;
+
+
+-- name: DeleteAirportByUserName :exec
+UPDATE airports
+SET is_deleted = TRUE
+WHERE user_id = (SELECT id FROM users WHERE username = ?);
+
+-- ============================================================================
+-- 2. AIRPORT CORE MANAGEMENT
+-- ============================================================================
+
+-- airport row management
+
+-- name: CreateAirportByUserName :execresult
+INSERT INTO airports (name, user_id, origin_country_id) 
+VALUES (?, (SELECT id FROM users WHERE username = ?), ?);
+
+
+-- name: GetAirportByUserId :one
+SELECT id, name, user_id, origin_country_id, cash, current_passengers, max_passenger_capacity, current_fuel, max_fuel_capacity, is_available, player_level, experience_points, passenger_generation_rate, fuel_generation_rate, resources_last_updated_at, is_deleted
+FROM airports 
+WHERE user_id = ? LIMIT 1;
+-- name: GetAirportByUserName :one
+SELECT id, name, user_id, origin_country_id, cash, current_passengers, max_passenger_capacity, current_fuel, max_fuel_capacity, is_available, player_level, experience_points ,passenger_generation_rate, fuel_generation_rate, resources_last_updated_at, is_deleted
+FROM airports 
+WHERE user_id = (SELECT id FROM users WHERE username = ?) LIMIT 1;
+
+
+-- airport resource management
+
+
+-- name: UpdateAirportCurrencies :exec
+UPDATE airports 
+SET cash = ?, 
+    current_passengers = ?, 
+    current_fuel = ?
+WHERE id = ?;
+
+-- name: UpdateAirportResources :exec
+UPDATE airports
+SET 
+    current_fuel = LEAST(
+        max_fuel_capacity, 
+        current_fuel + (fuel_generation_rate * TIMESTAMPDIFF(SECOND, resources_last_updated_at, NOW()))
+    ),
+    current_passengers = LEAST(
+        max_passenger_capacity, 
+        current_passengers + (passenger_generation_rate * TIMESTAMPDIFF(SECOND, resources_last_updated_at, NOW()))
+    ),
+    resources_last_updated_at = NOW()
+WHERE id = ?;
+
+-- name: UpdateAirportCash :exec
+UPDATE airports 
+SET cash = ?
+WHERE id = ?;
+-- name: UpdateAirportpassengers :exec
+UPDATE airports 
+SET current_passengers = ?
+WHERE id = ?;
+-- name: UpdateAirportFuel :exec
+UPDATE airports 
+SET current_fuel = ?
+WHERE id = ?;
+-- name: UpdateAirportmaxPassengers :exec
+UPDATE airports 
+SET max_passenger_capacity = ?
+WHERE id = ?;
+-- name: UpdateAirportMaxFuel :exec
+UPDATE airports 
+SET max_fuel_capacity = ?
+WHERE id = ?;
+
+-- name: UpdateAirportFuelRate :exec
+UPDATE airports 
+SET fuel_generation_rate = ?
+WHERE id = ?;
+-- name: UpdateAirportPassengerRate :exec
+UPDATE airports 
+SET passenger_generation_rate = ?
+WHERE id = ?;
+
+-- name: UpdateAirportResourcesUpdated :exec
+update airports
+set resources_last_updated_at = ?
+where id = ?;
+
+
+-- name: updatePlayerExperience :exec
+UPDATE airports 
+SET experience_points =  ?
+WHERE id = ?;
+
+-- name: updatePlayerLevel :exec
+UPDATE airports 
+SET player_level =  ?
+WHERE id = ?;
+
+
+
+-- ============================================================================
+-- 3. WAREHOUSE & INVENTORY SYSTEM
+-- ============================================================================
+
+
+-- ============================================================================
+-- 4. BUILDINGS & PRODUCTION ENGINE
+-- ============================================================================
+
+-- name: addStorageBuilding :execresult
+INSERT INTO buildings (name,min_level,construction_cost_cash,capacity,storage_type,storage_subtype)
+VALUES (?, ?, ?, ?, ?, ?);
+
+-- name: addOperationalBuilding :execresult
+INSERT INTO buildings (name,min_level,construction_cost_cash,operation_type,operation_size)
+VALUES (?, ?, ?, ?, ?);
+
+-- name: addPassiveProductionBuilding :execresult
+INSERT INTO buildings (name,min_level,construction_cost_cash,passive_type,passive_rate)
+VALUES (?, ?, ?, ?, ?);
+
+-- name: addBuilding :execresult
+INSERT INTO buildings (name,min_level,construction_cost_cash)
+VALUES (?, ?, ?);
+
+
+-- name: AddBuildingToAirportByUsername :execresult
+INSERT INTO airport_buildings (airport_id, building_id) 
+VALUES ((select id from airports where user_id = (select id from users where username = ?)), ?);
+
+-- name: GetAirportBuildingsByUsername :many
+SELECT ab.id AS airport_building_id,b.building_type , b.*
+FROM airport_buildings ab
+JOIN buildings b ON ab.building_id = b.id
+WHERE ab.airport_id = (select id from airports where user_id = (select id from users where username = ?));
+
+
+
+-- planes & fleet management
+
+-- name: addPlane :execresult
+INSERT INTO planes (name, aircraft_size,operation_type,aircraft_type ,min_level, operation_cost_fuel, operation_cost_cash, max_passengers, travel_time_inSeconds,buying_cost_cash, completed_flight_experience, completed_flight_cash_reward, completed_flight_cargo_reward)
+VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?);
+
+
+-- name: GetPlaneById :one
+SELECT * FROM planes WHERE id = ?;
+
+-- name: GetAllPlanes :many
+SELECT * FROM planes;
+
+-- name: GetPlanesByOperationType :many
+SELECT * FROM planes WHERE operation_type = ?;
+
+-- name: GetPlanesByMinLevel :many
+SELECT * FROM planes WHERE min_level <= ?;
+
+-- name: GetPlanesByAircraftSize :many
+SELECT * FROM planes WHERE aircraft_size = ?;
+
+-- name: GetPlanesByAircraftType :many
+SELECT * FROM planes WHERE aircraft_type = ?;
+
+-- name: addPlaneToAirportByUsername :execresult
+INSERT INTO player_planes (airport_id, plane_id, assigned_hangar_id, current_building_id, status) 
+VALUES ((select id from airports where user_id = (select id from users where username = ?)), ?, ?, ?, 'idle');  
+
+-- name: GetPlayerPlanesByUsername :many
+SELECT pp.id AS player_plane_id, pp.*
+FROM player_planes pp
+JOIN planes p ON pp.plane_id = p.id
+WHERE pp.airport_id = (select id from airports where user_id = (select id from users where username = ?));
+
+
+-- name: FindAvailableInfrastructureForPlane :one
+SELECT ab.id
+FROM airport_buildings ab
+JOIN buildings b ON ab.building_id = b.id
+LEFT JOIN player_planes pp ON ab.id = pp.current_building_id
+WHERE ab.airport_id = (select id from airports where user_id = (select id from users where username = ?)) 
+  AND b.operation_type = ?       -- 'runway' or 'service' (service bay)
+  AND b.operation_size = ?       -- matches plane's aircraft_size requirement
+  AND pp.id IS NULL              -- Ensures no other plane is physically here right now
+LIMIT 1;  
+
+-- name: UpdatePlayerPlaneState :exec
+UPDATE player_planes 
+SET current_building_id = ?, 
+    status = ?, 
+    flight_start_time = ?
+WHERE id = ?; 
+
+-- name: CheckHangarOccupancyByUsername :one
+SELECT COUNT(*) AS total_parked 
+FROM player_planes pp
+JOIN airport_buildings ab ON pp.current_building_id = ab.id
+WHERE ab.airport_id = (select id from airports where user_id = (select id from users where username = ?)) 
+  AND ab.building_id = ?; -- specific hangar  
+
+  -- 
+-- name: CheckRunwayOccupancyByUsername :one
+SELECT COUNT(*) AS total_occupied 
+FROM player_planes pp
+JOIN airport_buildings ab ON pp.current_building_id = ab.id
+WHERE ab.airport_id = (select id from airports where user_id = (select id from users where username = ?)) 
+  AND ab.building_id = ?; -- specific runway  
+
+-- name: GetPlanesReadyToLandByUsername :many
+SELECT pp.id AS player_plane_id, pp.airport_id, pp.assigned_hangar_id,
+       p.completed_flight_experience, p.completed_flight_cash_reward, p.completed_flight_cargo_reward, p.operation_type
+FROM player_planes pp
+JOIN planes p ON pp.plane_id = p.id
+WHERE pp.status = 'flying'
+  AND ADDTIME(pp.flight_start_time, p.travel_time) <= NOW()
+  AND pp.airport_id = (select id from airports where user_id = (select id from users where username = ?));    
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+-- ============================================================================
+-- 5. FLEET & DYNAMIC INFRASTRUCTURE OPERATIONS
+-- ============================================================================
+
+-- name: BuyPlaneForPlayer :execresult
+INSERT INTO player_planes (airport_id, plane_id, assigned_hangar_id, current_building_id, status) 
+VALUES (?, ?, ?, ?, 'idle');
+
+-- name: GetPlayerFleet :many
+SELECT pp.id AS player_plane_id, pp.status, pp.updated_at, pp.flight_start_time, pp.current_building_id, pp.assigned_hangar_id,p.*
+FROM player_planes pp
+JOIN planes p ON pp.plane_id = p.id
+WHERE pp.airport_id = ?;
+
+-- name: FindAvailableInfrastructure :one
+SELECT ab.id
+FROM airport_buildings ab
+JOIN buildings b ON ab.building_id = b.id
+LEFT JOIN player_planes pp ON ab.id = pp.current_building_id
+WHERE ab.airport_id = ? 
+  AND b.operation_type = ?       -- 'runway' or 'service' (service bay)
+  AND b.operation_size = ?       -- matches plane's aircraft_size requirement
+  AND pp.id IS NULL              -- Ensures no other plane is physically here right now
+LIMIT 1;
+
+-- name: UpdatePlaneState :exec
+UPDATE player_planes 
+SET current_building_id = ?, 
+    status = ?, 
+    
+    flight_start_time = ?
+WHERE id = ?;
+
+-- name: CheckHangarOccupancy :one
+SELECT COUNT(*) AS total_parked 
+FROM player_planes 
+WHERE current_building_id = ?;
+
+
+-- ============================================================================
+-- 6. TIME-BASED FLIGHT ENGINE
+-- ============================================================================
+
+-- name: GetPlanesReadyToLand :many
+SELECT pp.id AS player_plane_id, pp.airport_id, pp.assigned_hangar_id,
+       p.completed_flight_experience, p.completed_flight_cash_reward, p.completed_flight_cargo_reward, p.operation_type
+FROM player_planes pp
+JOIN planes p ON pp.plane_id = p.id
+WHERE pp.status = 'flying' 
+  -- Uses your logic: flight_start_time + plane travel duration <= current clock
+  AND ADDTIME(pp.flight_start_time, p.travel_time) <= NOW();
+
+
+-- ============================================================================
+-- 7. PROGRESSION CONTRACTS & ECONOMY LOGS
+-- ============================================================================
+
+-- name: GetActiveContracts :many
+SELECT id, title, required_product_id, required_amount, current_amount_delivered, is_completed, expires_at 
+FROM airport_contracts 
+WHERE airport_id = ? AND is_completed = FALSE AND expires_at > NOW();
+
+-- name: UpdateContractDelivery :exec
+UPDATE airport_contracts 
+SET current_amount_delivered = current_amount_delivered + ?
+WHERE id = ? AND is_completed = FALSE;
+
+-- name: CompleteContract :exec
+UPDATE airport_contracts 
+SET is_completed = TRUE 
+WHERE id = ?;
+
+-- name: LogCurrencyTransaction :exec
+INSERT INTO currency_transaction_logs (airport_id, amount_changed, currency_type, reason) 
+VALUES (?, ?, ?, ?);
+
+-- name: LogCompletedFlightRoute :exec
+INSERT INTO completed_flight_routes_log (origin_airport_id, destination_airport_id, start_time, end_time)
+VALUES (?, ?, ?, NOW());

backend/db/config/queries.txt

@@ -0,0 +1,218 @@
+-- ============================================================================
+-- 1. AUTHENTICATION & USERS
+-- ============================================================================
+
+-- name: CreateUser :execresult
+INSERT INTO users (username, password_hash) 
+VALUES (?, ?);
+
+-- name: UpdateUserPasswordByUserName :exec
+UPDATE users 
+SET password_hash = ? 
+WHERE username = ?;
+
+-- name: GetUserByUsername :one
+SELECT id, username, password_hash, created_at 
+FROM users 
+WHERE username = ? LIMIT 1;
+
+-- name: GetUserIdByUsername :one
+SELECT id 
+FROM users 
+WHERE username = ? LIMIT 1;
+
+-- ============================================================================
+-- 2. AIRPORT CORE MANAGEMENT
+-- ============================================================================
+
+-- airport row management
+
+-- name: CreateAirportByUserName :execresult
+INSERT INTO airports (name, user_id, origin_country_id) 
+VALUES (?, (SELECT id FROM users WHERE username = ?), ?);
+
+
+-- name: GetAirportByUserId :one
+SELECT id, name, user_id, origin_country_id, cash, current_passengers, max_passenger_capacity, current_fuel, max_fuel_capacity, is_available, player_level, experience_points, passenger_generation_rate, fuel_generation_rate, resources_last_updated_at
+FROM airports 
+WHERE user_id = ? LIMIT 1;
+-- name: GetAirportByUserName :one
+SELECT id, name, user_id, origin_country_id, cash, current_passengers, max_passenger_capacity, current_fuel, max_fuel_capacity, is_available, player_level, experience_points ,passenger_generation_rate, fuel_generation_rate, resources_last_updated_at
+FROM airports 
+WHERE user_id = (SELECT id FROM users WHERE username = ?) LIMIT 1;
+
+
+-- airport resource management
+
+
+-- name: UpdateAirportCurrencies :exec
+UPDATE airports 
+SET cash = ?, 
+    current_passengers = ?, 
+    current_fuel = ?
+WHERE id = ?;
+
+-- name: UpdateAirportCash :exec
+UPDATE airports 
+SET cash = ?
+WHERE id = ?;
+-- name: UpdateAirportpassengers :exec
+UPDATE airports 
+SET current_passengers = ?
+WHERE id = ?;
+-- name: UpdateAirportFuel :exec
+UPDATE airports 
+SET current_fuel = ?
+WHERE id = ?;
+-- name: UpdateAirportmaxPassengers :exec
+UPDATE airports 
+SET max_passenger_capacity = ?
+WHERE id = ?;
+-- name: UpdateAirportMaxFuel :exec
+UPDATE airports 
+SET max_fuel_capacity = ?
+WHERE id = ?;
+
+-- name: UpdateAirportFuelRate :exec
+UPDATE airports 
+SET fuel_generation_rate = ?
+WHERE id = ?;
+-- name: UpdateAirportPassengerRate :exec
+UPDATE airports 
+SET passenger_generation_rate = ?
+WHERE id = ?;
+
+-- name: UpdateAirportResourcesUpdated :exec
+update airports
+set resources_last_updated_at = ?
+where id = ?;
+
+
+-- name: updatePlayerExperience :exec
+UPDATE airports 
+SET experience_points =  ?,
+WHERE id = ?;
+
+-- name: updatePlayerLevel :exec
+UPDATE airports 
+SET player_level =  ?
+WHERE id = ?;
+
+
+
+-- ============================================================================
+-- 3. WAREHOUSE & INVENTORY SYSTEM
+-- ============================================================================
+
+
+-- ============================================================================
+-- 4. BUILDINGS & PRODUCTION ENGINE
+-- ============================================================================
+
+-- name: addStorageBuilding:execresult
+INSERT INTO buildings (name,min_level,construction_cost_cash,capacity,storage_type,storage_subtype)
+VALUES (?, ?, ?, ?, ?, ?);
+
+-- name: addOperationalBuilding:execresult
+INSERT INTO buildings (name,min_level,construction_cost_cash,operation_type,operation_size)
+VALUES (?, ?, ?, ?, ?);
+
+-- name: addPassiveProductionBuilding:execresult
+INSERT INTO buildings (name,min_level,construction_cost_cash,currency_type,income_rate)
+VALUES (?, ?, ?, ?, ?);
+
+-- name: addProductionBuilding:execresult
+INSERT INTO buildings (name,min_level,construction_cost_cash,recipe_id,storage_1,storage_2,storage_3)
+VALUES (?, ?, ?, ?, ?, ?, ?);
+
+
+-- name: AddBuildingToAirport :execresult
+INSERT INTO airport_buildings (airport_id, building_id, level) 
+VALUES ((select id from airports where user_id = (select id from users where username = ?)), ?, 1);
+
+-- name: GetAirportBuildings :many
+SELECT ab.id AS airport_building_id, ab.level, b.*
+FROM airport_buildings ab
+JOIN buildings b ON ab.building_id = b.id
+WHERE ab.airport_id = (select id from airports where user_id = (select id from users where username = ?));
+
+-- ============================================================================
+-- 5. FLEET & DYNAMIC INFRASTRUCTURE OPERATIONS
+-- ============================================================================
+
+-- name: BuyPlaneForPlayer :execresult
+INSERT INTO player_planes (airport_id, plane_id, assigned_hangar_id, current_building_id, status) 
+VALUES (?, ?, ?, ?, 'idle');
+
+-- name: GetPlayerFleet :many
+SELECT pp.id AS player_plane_id, pp.status, pp.updated_at, pp.flight_start_time, pp.current_building_id, pp.assigned_hangar_id, pp.assigned_cargo_id,
+       p.*
+FROM player_planes pp
+JOIN planes p ON pp.plane_id = p.id
+WHERE pp.airport_id = ?;
+
+-- name: FindAvailableInfrastructure :one
+SELECT ab.id
+FROM airport_buildings ab
+JOIN buildings b ON ab.building_id = b.id
+LEFT JOIN player_planes pp ON ab.id = pp.current_building_id
+WHERE ab.airport_id = ? 
+  AND b.operation_type = ?       -- 'runway' or 'service' (service bay)
+  AND b.operation_size = ?       -- matches plane's aircraft_size requirement
+  AND pp.id IS NULL              -- Ensures no other plane is physically here right now
+LIMIT 1;
+
+-- name: UpdatePlaneState :exec
+UPDATE player_planes 
+SET current_building_id = ?, 
+    status = ?, 
+    assigned_cargo_id = ?,
+    flight_start_time = ?
+WHERE id = ?;
+
+-- name: CheckHangarOccupancy :one
+SELECT COUNT(*) AS total_parked 
+FROM player_planes 
+WHERE current_building_id = ?;
+
+
+-- ============================================================================
+-- 6. TIME-BASED FLIGHT ENGINE
+-- ============================================================================
+
+-- name: GetPlanesReadyToLand :many
+SELECT pp.id AS player_plane_id, pp.airport_id, pp.assigned_hangar_id,
+       p.completed_flight_experience, p.completed_flight_cash_reward, p.completed_flight_cargo_reward, p.operation_type, pp.assigned_cargo_id
+FROM player_planes pp
+JOIN planes p ON pp.plane_id = p.id
+WHERE pp.status = 'flying' 
+  -- Uses your logic: flight_start_time + plane travel duration <= current clock
+  AND ADDTIME(pp.flight_start_time, p.travel_time) <= NOW();
+
+
+-- ============================================================================
+-- 7. PROGRESSION CONTRACTS & ECONOMY LOGS
+-- ============================================================================
+
+-- name: GetActiveContracts :many
+SELECT id, title, required_product_id, required_amount, current_amount_delivered, is_completed, expires_at 
+FROM airport_contracts 
+WHERE airport_id = ? AND is_completed = FALSE AND expires_at > NOW();
+
+-- name: UpdateContractDelivery :exec
+UPDATE airport_contracts 
+SET current_amount_delivered = current_amount_delivered + ?
+WHERE id = ? AND is_completed = FALSE;
+
+-- name: CompleteContract :exec
+UPDATE airport_contracts 
+SET is_completed = TRUE 
+WHERE id = ?;
+
+-- name: LogCurrencyTransaction :exec
+INSERT INTO currency_transaction_logs (airport_id, amount_changed, currency_type, reason) 
+VALUES (?, ?, ?, ?);
+
+-- name: LogCompletedFlightRoute :exec
+INSERT INTO completed_flight_routes_log (origin_airport_id, destination_country_id, start_time, end_time)
+VALUES (?, ?, ?, NOW());

backend/db/config/schema.sql

@@ -0,0 +1,260 @@
+-- stages 
+-- stage 0 : launch planes to country's base airport (accepts everyhing sendds nothing back)
+-- stage 1 : add NPCs and cargo planes and shop buildings.
+-- stage 2 : add player progression, building upgrades, effects and more complex recipes.
+-- stage 3 : TBD
+
+
+
+-- good
+CREATE TABLE IF NOT EXISTS users (
+    id INTEGER PRIMARY KEY AUTO_INCREMENT,
+    username varchar(255) NOT NULL UNIQUE,
+    password_hash TEXT NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    deleted_at TIMESTAMP DEFAULT NULL
+);
+
+-- product table act as a product identifier ie egg, milk, flour etc
+create table if not exists products (
+    id smallint unsigned primary key auto_increment,
+    name varchar(255) not null
+);
+
+-- for stage 2 will not be used
+-- increasing speed (crafting,currency type generation etc)), 
+CREATE table if not exists effects (
+    id smallint unsigned primary key auto_increment,
+    name varchar(255) not null
+);
+
+-- used airport grouping and for contracts, each country has 3 produce they can export there will not be cap
+create table if not exists countries (
+    id smallint unsigned primary key auto_increment,
+    name varchar(255) not null,
+    continent ENUM('void','Africa', 'Antarctica', 'Asia', 'Europe', 'North America', 'Oceania', 'South America') NOT NULL, -- universal enum
+    produce_1_id smallint unsigned not null,
+    produce_2_id smallint unsigned not null, 
+    produce_3_id smallint unsigned not null,
+    foreign key (produce_1_id) references products(id),
+    foreign key (produce_2_id) references products(id),
+    foreign key (produce_3_id) references products(id)
+);
+
+-- main table 
+-- primary access table act as a player identifier, each player can only have one airport, but they can have multiple planes and buildings
+create table if not exists airports (
+    id integer unsigned primary key auto_increment,
+    name varchar(255) not null,
+    user_id  integer unique not null,
+    origin_country_id smallint unsigned not null,
+    -- resources
+    cash bigint unsigned not null default 100,
+    current_passengers INTEGER UNSIGNED NOT NULL DEFAULT 100,
+    max_passenger_capacity INTEGER UNSIGNED NOT NULL DEFAULT 100,
+    current_fuel INTEGER UNSIGNED NOT NULL DEFAULT 500,
+    max_fuel_capacity INTEGER UNSIGNED NOT NULL DEFAULT 1000,
+    -- resource generation
+    fuel_generation_rate INT UNSIGNED NOT NULL DEFAULT 20,
+    passenger_generation_rate INT UNSIGNED NOT NULL DEFAULT 5,
+    resources_last_updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    -- progression
+    is_available boolean not null default true, -- if true can be sent planes from anyone
+    player_level integer unsigned not null default 1,
+    experience_points bigint unsigned not null default 0,
+    is_deleted BOOLEAN DEFAULT FALSE,
+    foreign key (origin_country_id) references countries(id),
+    foreign key (user_id) references users(id),
+    constraint chk_fuel_capacity CHECK (current_fuel <= max_fuel_capacity),
+    constraint chk_positive_fuel CHECK (current_fuel >= 0),
+    CONSTRAINT chk_passenger_capacity CHECK (current_passengers <= max_passenger_capacity),
+    CONSTRAINT chk_positive_passenger CHECK (current_passengers >= 0)
+);
+
+
+-- for stage 1, used as template for recipes.
+create table if not exists recipes (
+    id integer unsigned primary key auto_increment,
+    name varchar(255) not null,
+    ingredient_1_id smallint unsigned ,
+    ingredient_1_amount integer unsigned ,
+    ingredient_2_id smallint unsigned,
+    ingredient_2_amount integer unsigned ,
+    ingredient_3_id smallint unsigned ,
+    ingredient_3_amount integer unsigned ,
+    product_id smallint unsigned not null,
+    yield_amount integer unsigned not null,
+    foreign key (ingredient_1_id) references products(id),
+    foreign key (ingredient_2_id) references products(id),
+    foreign key (ingredient_3_id) references products(id),
+    foreign key (product_id) references products(id)
+);
+
+
+
+
+
+-- BUILDNGS
+
+-- hangars fuel tanks etc
+CREATE table if not exists buildings (
+    -- shared
+    id integer unsigned primary key auto_increment,
+    name varchar(255) not null,
+    min_level integer unsigned not null DEfAULT 1,
+    construction_cost_cash integer unsigned not null default 100,
+    upgrade_tier TINYINT UNSIGNED  DEFAULT 0,
+    upgrade_cost_cash_to_uptier integer unsigned  default null,
+    building_type ENUM('none','storage', 'support', 'operation', 'passive', 'shop', 'production') not null,
+     -- production specific
+    -- storage
+    capacity integer unsigned , 
+    storage_type ENUM( 'fuel' , 'plane', 'product'),
+    storage_subtype ENUM('none', 'airplane', 'helicopter', 'seaplane','spaceship'),
+    -- support
+    effect_id smallint unsigned,
+    effect_value integer,
+    -- operation
+    operation_size enum('small','medium'  ,'large', 'huge'),
+    operation_type enum('runway', 'service', 'production'),
+   
+    -- passive income
+    passive_type enum('passengers', 'fuel'),
+    passive_rate integer ,
+    
+    foreign key (effect_id) references effects(id)
+    
+    );
+
+-- stage 1
+create table if not exists building_products (
+    id integer unsigned primary key auto_increment,
+    building_id integer unsigned not null,
+
+    recipe_id integer unsigned,
+    storage_product integer unsigned ,
+    storage_1 integer unsigned ,
+    storage_2 integer unsigned ,
+    storage_3 integer unsigned ,
+    foreign key (building_id) references buildings(id),
+    foreign key (recipe_id) references recipes(id)
+);
+
+
+-- many to many relation between airport and buildings
+create table if not exists airport_buildings (
+    id integer unsigned primary key auto_increment,
+    airport_id integer unsigned not null,
+    building_id integer unsigned not null,
+    -- shop specific
+    recipe_id integer unsigned ,
+    storage_product integer unsigned ,
+    storage_1 integer unsigned ,
+    storage_2 integer unsigned ,
+    storage_3 integer unsigned ,
+    level integer unsigned not null default 1,
+    foreign key (airport_id) references airports(id) ,
+    foreign key (building_id) references buildings(id)
+);
+
+
+
+
+-- planes  
+-- template for planes
+create table if not exists planes (
+    id integer unsigned primary key auto_increment,
+    name varchar(255) not null,
+    min_level integer unsigned not null default 1,
+    operation_cost_fuel integer unsigned not null,
+    operation_cost_cash integer unsigned not null DEFAULT 10,
+    max_passengers integer unsigned,
+    travel_time_inSeconds integer unsigned not null,
+    operation_type enum('passenger', 'cargo') not null,
+    aircraft_size enum('small', 'medium', 'large', 'huge') not null,
+    aircraft_type enum('plane', 'helicopter', 'seaplane','spaceship') not null,
+    buying_cost_cash integer unsigned not null DEFAULT 100,
+    completed_flight_experience integer unsigned not null DEFAULT 20,
+    completed_flight_cash_reward integer unsigned  DEFAULT 50,
+    completed_flight_cargo_reward integer unsigned DEFAULT null
+    
+);
+
+-- actual planes owned by players, tracks location, status, assigned hangar etc
+CREATE TABLE IF NOT EXISTS player_planes (
+    id INT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
+    airport_id INT UNSIGNED NOT NULL,
+    plane_id INTEGER UNSIGNED NOT NULL,
+    
+    -- 1. assignment (Must always point to a hangar they own they move between suitable hangars)
+    assigned_hangar_id INT UNSIGNED NOT NULL, 
+    
+    -- 2. Real-time physical location (stored, Service Bay, Runway, or NULL if flying)
+    current_building_id INT UNSIGNED DEFAULT NULL, 
+   --  assigned_cargo_id INTEGER UNSIGNED DEFAULT NULL, -- stage 1 For cargo planes, track what they're carrying
+
+    status ENUM('idle', 'maintenance', 'boarding', 'taxiing', 'flying') NOT NULL DEFAULT 'idle',
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    flight_start_time TIMESTAMP NULL DEFAULT NULL,
+    
+  
+    FOREIGN KEY (airport_id) REFERENCES airports(id),
+    FOREIGN KEY (plane_id) REFERENCES planes(id),
+    FOREIGN KEY (assigned_hangar_id) REFERENCES airport_buildings(id),
+    FOREIGN KEY (current_building_id) REFERENCES airport_buildings(id) 
+   
+);
+
+-- stage 1
+CREATE TABLE IF NOT EXISTS airport_inventory (
+    airport_id INTEGER unsigned NOT NULL,
+    product_id SMALLINT UNSIGNED NOT NULL,
+    quantity INTEGER UNSIGNED NOT NULL DEFAULT 0,
+    PRIMARY KEY (airport_id, product_id),
+    FOREIGN KEY (airport_id) REFERENCES airports(id),
+    FOREIGN KEY (product_id) REFERENCES products(id)
+);
+
+
+-- stage ? tbd
+CREATE TABLE IF NOT EXISTS airport_contracts (
+    id INTEGER UNSIGNED PRIMARY KEY AUTO_INCREMENT,
+    airport_id INTEGER unsigned NOT NULL,
+    title VARCHAR(255) NOT NULL,
+    
+    -- What they need to deliver
+    required_product_id SMALLINT UNSIGNED NOT NULL,
+    required_amount INTEGER UNSIGNED NOT NULL,
+    current_amount_delivered INTEGER UNSIGNED NOT NULL DEFAULT 0,
+    
+   
+    -- Status
+    is_completed BOOLEAN NOT NULL DEFAULT FALSE,
+    expires_at TIMESTAMP NOT NULL,
+    
+    FOREIGN KEY (airport_id) REFERENCES airports(id),
+    FOREIGN KEY (required_product_id) REFERENCES products(id)
+    
+);
+
+
+-- logs
+
+create table if not exists completed_flight_routes_log (
+    id integer unsigned primary key auto_increment,
+    origin_airport_id integer unsigned not null,
+    destination_airport_id integer unsigned not null,
+    start_time timestamp not null default current_timestamp,
+    end_time timestamp default null,
+    foreign key (origin_airport_id) references airports(id),
+    foreign key (destination_airport_id) references airports(id)
+);
+CREATE TABLE IF NOT EXISTS currency_transaction_logs (
+    id BIGINT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
+    airport_id INT UNSIGNED NOT NULL,
+    amount_changed INT NOT NULL, -- Negative for buying, positive for earning
+    currency_type ENUM('cash', 'fuel', 'passengers') NOT NULL,
+    reason VARCHAR(255) NOT NULL, -- e.g., 'bought_plane_id_12', 'completed_flight_34'
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (airport_id) REFERENCES airports(id)
+);

backend/db/config/schema.txt

@@ -0,0 +1,254 @@
+-- stages 
+-- stage 0 : launch planes to country's base airport (accepts everyhing sendds nothing back)
+-- stage 1 : add NPCs and cargo planes and shop buildings.
+-- stage 2 : add player progression, building upgrades, effects and more complex recipes.
+-- stage 3 : TBD
+
+
+
+-- good
+CREATE TABLE IF NOT EXISTS users (
+    id INTEGER PRIMARY KEY AUTO_INCREMENT,
+    username varchar(255) NOT NULL UNIQUE,
+    password_hash TEXT NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+);
+
+-- product table act as a product identifier ie egg, milk, flour etc
+create table if not exists products (
+    id smallint unsigned primary key auto_increment,
+    name varchar(255) not null
+);
+
+-- for stage 2 will not be used
+-- increasing speed (crafting,currency type generation etc)), 
+CREATE table if not exists effects (
+    id smallint unsigned primary key auto_increment,
+    name varchar(255) not null
+);
+
+-- used airport grouping and for contracts, each country has 3 produce they can export there will not be cap
+create table if not exists countries (
+    id smallint unsigned primary key auto_increment,
+    name varchar(255) not null,
+    continent ENUM('void','Africa', 'Antarctica', 'Asia', 'Europe', 'North America', 'Oceania', 'South America') NOT NULL, -- universal enum
+    produce_1_id smallint unsigned not null,
+    produce_2_id smallint unsigned not null, 
+    produce_3_id smallint unsigned not null,
+    foreign key (produce_1_id) references products(id),
+    foreign key (produce_2_id) references products(id),
+    foreign key (produce_3_id) references products(id)
+);
+
+-- main table 
+-- primary access table act as a player identifier, each player can only have one airport, but they can have multiple planes and buildings
+create table if not exists airports (
+    id integer unsigned primary key auto_increment,
+    name varchar(255) not null,
+    user_id  integer unique not null,
+    origin_country_id smallint unsigned not null,
+    -- resources
+    cash bigint unsigned not null default 100,
+    current_passengers INTEGER UNSIGNED NOT NULL DEFAULT 100,
+    max_passenger_capacity INTEGER UNSIGNED NOT NULL DEFAULT 100,
+    current_fuel INTEGER UNSIGNED NOT NULL DEFAULT 500,
+    max_fuel_capacity INTEGER UNSIGNED NOT NULL DEFAULT 1000,
+    -- resource generation
+    fuel_generation_rate INT UNSIGNED NOT NULL DEFAULT 20,
+    passenger_generation_rate INT UNSIGNED NOT NULL DEFAULT 5,
+    resources_last_updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    -- progression
+    is_available boolean not null default true, -- if true can be sent planes from anyone
+    player_level integer unsigned not null default 1,
+    experience_points bigint unsigned not null default 0,
+    foreign key (origin_country_id) references countries(id),
+    foreign key (user_id) references users(id),
+    constraint chk_fuel_capacity CHECK (current_fuel <= max_fuel_capacity),
+    constraint chk_positive_fuel CHECK (current_fuel >= 0)
+);
+
+
+-- for stage 1, used as template for recipes.
+create table if not exists recipes (
+    id integer unsigned primary key auto_increment,
+    name varchar(255) not null,
+    ingredient_1_id smallint unsigned ,
+    ingredient_1_amount integer unsigned ,
+    ingredient_2_id smallint unsigned,
+    ingredient_2_amount integer unsigned ,
+    ingredient_3_id smallint unsigned ,
+    ingredient_3_amount integer unsigned ,
+    product_id smallint unsigned not null,
+    yield_amount integer unsigned not null,
+    foreign key (ingredient_1_id) references products(id),
+    foreign key (ingredient_2_id) references products(id),
+    foreign key (ingredient_3_id) references products(id),
+    foreign key (product_id) references products(id)
+);
+
+
+
+
+
+-- BUILDNGS
+
+-- hangars fuel tanks etc
+CREATE table if not exists buildings (
+    -- shared
+    id integer unsigned primary key auto_increment,
+    name varchar(255) not null,
+    min_level integer unsigned not null DEfAULT 1,
+    construction_cost_cash integer unsigned not null default 100,
+    upgrade_tier TINYINT UNSIGNED  DEFAULT 0,
+    upgrade_cost_cash_to_uptier integer unsigned  default null,
+    -- storage
+    capacity integer unsigned , 
+    storage_type ENUM( 'fuel' , 'plane', 'product'),
+    storage_subtype ENUM('none', 'airplane', 'helicopter', 'seaplane','spaceship'),
+    -- support
+    effect_id smallint unsigned,
+    effect_value integer,
+    -- operation
+    operation_size enum('small','medium'  ,'large', 'huge'),
+    operation_type enum('runway', 'service', 'production'),
+   
+    -- passive income
+    passive_type enum('passengers', 'fuel'),
+    passive_rate integer ,
+    
+    foreign key (effect_id) references effects(id)
+    
+    );
+
+--stage 1
+create table if not exists building_products (
+    id integer unsigned primary key auto_increment,
+    building_id integer unsigned not null,
+
+    recipe_id integer unsigned,
+    storage_product integer unsigned ,
+    storage_1 integer unsigned ,
+    storage_2 integer unsigned ,
+    storage_3 integer unsigned ,
+    foreign key (building_id) references buildings(id),
+    foreign key (recipe_id) references recipes(id)
+);
+
+
+-- many to many relation between airport and buildings
+create table if not exists airport_buildings (
+    id integer unsigned primary key auto_increment,
+    airport_id integer unsigned not null,
+    building_id integer unsigned not null,
+    -- shop specific
+    recipe_id integer unsigned ,
+    storage_product integer unsigned ,
+    storage_1 integer unsigned ,
+    storage_2 integer unsigned ,
+    storage_3 integer unsigned ,
+    level integer unsigned not null default 1,
+    foreign key (airport_id) references airports(id) ,
+    foreign key (building_id) references buildings(id)
+);
+
+
+
+
+-- planes  
+-- template for planes
+create table if not exists planes (
+    id integer unsigned primary key auto_increment,
+    name varchar(255) not null,
+    min_level integer unsigned not null default 1,
+    operation_cost_fuel integer unsigned not null,
+    operation_cost_cash integer unsigned not null DEFAULT 10,
+    max_passengers integer unsigned,
+    travel_time_inSeconds integer unsigned not null,
+    operation_type enum('passenger', 'cargo') not null,
+    aircraft_size enum('small', 'medium', 'large', 'huge') not null,
+    aircraft_type enum('plane', 'helicopter', 'seaplane','spaceship') not null,
+    buying_cost_cash integer unsigned not null DEFAULT 100,
+    completed_flight_experience integer unsigned not null DEFAULT 20,
+    completed_flight_cash_reward integer unsigned  DEFAULT 50,
+    completed_flight_cargo_reward integer unsigned DEFAULT 10
+    
+);
+
+-- actual planes owned by players, tracks location, status, assigned hangar etc
+CREATE TABLE IF NOT EXISTS player_planes (
+    id INT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
+    airport_id INT UNSIGNED NOT NULL,
+    plane_id INTEGER UNSIGNED NOT NULL,
+    
+    -- 1. assignment (Must always point to a hangar they own they move between suitable hangars)
+    assigned_hangar_id INT UNSIGNED NOT NULL, 
+    
+    -- 2. Real-time physical location (stored, Service Bay, Runway, or NULL if flying)
+    current_building_id INT UNSIGNED DEFAULT NULL, 
+   --  assigned_cargo_id INTEGER UNSIGNED DEFAULT NULL, -- stage 1 For cargo planes, track what they're carrying
+
+    status ENUM('idle', 'maintenance', 'boarding', 'taxiing', 'flying') NOT NULL DEFAULT 'idle',
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    flight_start_time TIMESTAMP NULL DEFAULT NULL,
+    
+  
+    FOREIGN KEY (airport_id) REFERENCES airports(id),
+    FOREIGN KEY (plane_id) REFERENCES planes(id),
+    FOREIGN KEY (assigned_hangar_id) REFERENCES airport_buildings(id),
+    FOREIGN KEY (current_building_id) REFERENCES airport_buildings(id) 
+    --foreign key (assigned_cargo_id) references products(id) -- stage 1
+);
+
+-- stage 1
+CREATE TABLE IF NOT EXISTS airport_inventory (
+    airport_id INTEGER unsigned NOT NULL,
+    product_id SMALLINT UNSIGNED NOT NULL,
+    quantity INTEGER UNSIGNED NOT NULL DEFAULT 0,
+    PRIMARY KEY (airport_id, product_id),
+    FOREIGN KEY (airport_id) REFERENCES airports(id),
+    FOREIGN KEY (product_id) REFERENCES products(id)
+);
+
+
+-- stage ? tbd
+CREATE TABLE IF NOT EXISTS airport_contracts (
+    id INTEGER UNSIGNED PRIMARY KEY AUTO_INCREMENT,
+    airport_id INTEGER unsigned NOT NULL,
+    title VARCHAR(255) NOT NULL,
+    
+    -- What they need to deliver
+    required_product_id SMALLINT UNSIGNED NOT NULL,
+    required_amount INTEGER UNSIGNED NOT NULL,
+    current_amount_delivered INTEGER UNSIGNED NOT NULL DEFAULT 0,
+    
+   
+    -- Status
+    is_completed BOOLEAN NOT NULL DEFAULT FALSE,
+    expires_at TIMESTAMP NOT NULL,
+    
+    FOREIGN KEY (airport_id) REFERENCES airports(id),
+    FOREIGN KEY (required_product_id) REFERENCES products(id)
+    
+);
+
+
+-- logs
+
+create table if not exists completed_flight_routes_log (
+    id integer unsigned primary key auto_increment,
+    origin_airport_id integer unsigned not null,
+    destination_airport_id integer unsigned not null,
+    start_time timestamp not null default current_timestamp,
+    end_time timestamp default null,
+    foreign key (origin_airport_id) references airports(id),
+    foreign key (destination_airport_id) references airports(id)
+);
+CREATE TABLE IF NOT EXISTS currency_transaction_logs (
+    id BIGINT UNSIGNED PRIMARY KEY AUTO_INCREMENT,
+    airport_id INT UNSIGNED NOT NULL,
+    amount_changed INT NOT NULL, -- Negative for buying, positive for earning
+    currency_type ENUM('cash', 'fuel', 'passengers') NOT NULL,
+    reason VARCHAR(255) NOT NULL, -- e.g., 'bought_plane_id_12', 'completed_flight_34'
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (airport_id) REFERENCES airports(id)
+);

backend/db/config/sqlc.yml

@@ -0,0 +1,9 @@
+version: "2"
+sql:
+  - engine: "mysql"
+    queries: "queries.sql"
+    schema: "schema.sql"
+    gen:
+      go:
+        package: "db"
+        out: "../"

backend/db/db.go

@@ -0,0 +1,31 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+
+package db
+
+import (
+	"context"
+	"database/sql"
+)
+
+type DBTX interface {
+	ExecContext(context.Context, string, ...interface{}) (sql.Result, error)
+	PrepareContext(context.Context, string) (*sql.Stmt, error)
+	QueryContext(context.Context, string, ...interface{}) (*sql.Rows, error)
+	QueryRowContext(context.Context, string, ...interface{}) *sql.Row
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx *sql.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}

backend/db/models.go

@@ -0,0 +1,704 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.31.1
+
+package db
+
+import (
+	"database/sql"
+	"database/sql/driver"
+	"fmt"
+	"time"
+)
+
+type BuildingsBuildingType string
+
+const (
+	BuildingsBuildingTypeNone       BuildingsBuildingType = "none"
+	BuildingsBuildingTypeStorage    BuildingsBuildingType = "storage"
+	BuildingsBuildingTypeSupport    BuildingsBuildingType = "support"
+	BuildingsBuildingTypeOperation  BuildingsBuildingType = "operation"
+	BuildingsBuildingTypePassive    BuildingsBuildingType = "passive"
+	BuildingsBuildingTypeShop       BuildingsBuildingType = "shop"
+	BuildingsBuildingTypeProduction BuildingsBuildingType = "production"
+)
+
+func (e *BuildingsBuildingType) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = BuildingsBuildingType(s)
+	case string:
+		*e = BuildingsBuildingType(s)
+	default:
+		return fmt.Errorf("unsupported scan type for BuildingsBuildingType: %T", src)
+	}
+	return nil
+}
+
+type NullBuildingsBuildingType struct {
+	BuildingsBuildingType BuildingsBuildingType
+	Valid                 bool // Valid is true if BuildingsBuildingType is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullBuildingsBuildingType) Scan(value interface{}) error {
+	if value == nil {
+		ns.BuildingsBuildingType, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.BuildingsBuildingType.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullBuildingsBuildingType) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.BuildingsBuildingType), nil
+}
+
+type BuildingsOperationSize string
+
+const (
+	BuildingsOperationSizeSmall  BuildingsOperationSize = "small"
+	BuildingsOperationSizeMedium BuildingsOperationSize = "medium"
+	BuildingsOperationSizeLarge  BuildingsOperationSize = "large"
+	BuildingsOperationSizeHuge   BuildingsOperationSize = "huge"
+)
+
+func (e *BuildingsOperationSize) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = BuildingsOperationSize(s)
+	case string:
+		*e = BuildingsOperationSize(s)
+	default:
+		return fmt.Errorf("unsupported scan type for BuildingsOperationSize: %T", src)
+	}
+	return nil
+}
+
+type NullBuildingsOperationSize struct {
+	BuildingsOperationSize BuildingsOperationSize
+	Valid                  bool // Valid is true if BuildingsOperationSize is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullBuildingsOperationSize) Scan(value interface{}) error {
+	if value == nil {
+		ns.BuildingsOperationSize, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.BuildingsOperationSize.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullBuildingsOperationSize) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.BuildingsOperationSize), nil
+}
+
+type BuildingsOperationType string
+
+const (
+	BuildingsOperationTypeRunway     BuildingsOperationType = "runway"
+	BuildingsOperationTypeService    BuildingsOperationType = "service"
+	BuildingsOperationTypeProduction BuildingsOperationType = "production"
+)
+
+func (e *BuildingsOperationType) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = BuildingsOperationType(s)
+	case string:
+		*e = BuildingsOperationType(s)
+	default:
+		return fmt.Errorf("unsupported scan type for BuildingsOperationType: %T", src)
+	}
+	return nil
+}
+
+type NullBuildingsOperationType struct {
+	BuildingsOperationType BuildingsOperationType
+	Valid                  bool // Valid is true if BuildingsOperationType is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullBuildingsOperationType) Scan(value interface{}) error {
+	if value == nil {
+		ns.BuildingsOperationType, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.BuildingsOperationType.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullBuildingsOperationType) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.BuildingsOperationType), nil
+}
+
+type BuildingsPassiveType string
+
+const (
+	BuildingsPassiveTypePassengers BuildingsPassiveType = "passengers"
+	BuildingsPassiveTypeFuel       BuildingsPassiveType = "fuel"
+)
+
+func (e *BuildingsPassiveType) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = BuildingsPassiveType(s)
+	case string:
+		*e = BuildingsPassiveType(s)
+	default:
+		return fmt.Errorf("unsupported scan type for BuildingsPassiveType: %T", src)
+	}
+	return nil
+}
+
+type NullBuildingsPassiveType struct {
+	BuildingsPassiveType BuildingsPassiveType
+	Valid                bool // Valid is true if BuildingsPassiveType is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullBuildingsPassiveType) Scan(value interface{}) error {
+	if value == nil {
+		ns.BuildingsPassiveType, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.BuildingsPassiveType.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullBuildingsPassiveType) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.BuildingsPassiveType), nil
+}
+
+type BuildingsStorageSubtype string
+
+const (
+	BuildingsStorageSubtypeNone       BuildingsStorageSubtype = "none"
+	BuildingsStorageSubtypeAirplane   BuildingsStorageSubtype = "airplane"
+	BuildingsStorageSubtypeHelicopter BuildingsStorageSubtype = "helicopter"
+	BuildingsStorageSubtypeSeaplane   BuildingsStorageSubtype = "seaplane"
+	BuildingsStorageSubtypeSpaceship  BuildingsStorageSubtype = "spaceship"
+)
+
+func (e *BuildingsStorageSubtype) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = BuildingsStorageSubtype(s)
+	case string:
+		*e = BuildingsStorageSubtype(s)
+	default:
+		return fmt.Errorf("unsupported scan type for BuildingsStorageSubtype: %T", src)
+	}
+	return nil
+}
+
+type NullBuildingsStorageSubtype struct {
+	BuildingsStorageSubtype BuildingsStorageSubtype
+	Valid                   bool // Valid is true if BuildingsStorageSubtype is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullBuildingsStorageSubtype) Scan(value interface{}) error {
+	if value == nil {
+		ns.BuildingsStorageSubtype, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.BuildingsStorageSubtype.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullBuildingsStorageSubtype) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.BuildingsStorageSubtype), nil
+}
+
+type BuildingsStorageType string
+
+const (
+	BuildingsStorageTypeFuel    BuildingsStorageType = "fuel"
+	BuildingsStorageTypePlane   BuildingsStorageType = "plane"
+	BuildingsStorageTypeProduct BuildingsStorageType = "product"
+)
+
+func (e *BuildingsStorageType) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = BuildingsStorageType(s)
+	case string:
+		*e = BuildingsStorageType(s)
+	default:
+		return fmt.Errorf("unsupported scan type for BuildingsStorageType: %T", src)
+	}
+	return nil
+}
+
+type NullBuildingsStorageType struct {
+	BuildingsStorageType BuildingsStorageType
+	Valid                bool // Valid is true if BuildingsStorageType is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullBuildingsStorageType) Scan(value interface{}) error {
+	if value == nil {
+		ns.BuildingsStorageType, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.BuildingsStorageType.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullBuildingsStorageType) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.BuildingsStorageType), nil
+}
+
+type CountriesContinent string
+
+const (
+	CountriesContinentVoid         CountriesContinent = "void"
+	CountriesContinentAfrica       CountriesContinent = "Africa"
+	CountriesContinentAntarctica   CountriesContinent = "Antarctica"
+	CountriesContinentAsia         CountriesContinent = "Asia"
+	CountriesContinentEurope       CountriesContinent = "Europe"
+	CountriesContinentNorthAmerica CountriesContinent = "North America"
+	CountriesContinentOceania      CountriesContinent = "Oceania"
+	CountriesContinentSouthAmerica CountriesContinent = "South America"
+)
+
+func (e *CountriesContinent) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = CountriesContinent(s)
+	case string:
+		*e = CountriesContinent(s)
+	default:
+		return fmt.Errorf("unsupported scan type for CountriesContinent: %T", src)
+	}
+	return nil
+}
+
+type NullCountriesContinent struct {
+	CountriesContinent CountriesContinent
+	Valid              bool // Valid is true if CountriesContinent is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullCountriesContinent) Scan(value interface{}) error {
+	if value == nil {
+		ns.CountriesContinent, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.CountriesContinent.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullCountriesContinent) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.CountriesContinent), nil
+}
+
+type CurrencyTransactionLogsCurrencyType string
+
+const (
+	CurrencyTransactionLogsCurrencyTypeCash       CurrencyTransactionLogsCurrencyType = "cash"
+	CurrencyTransactionLogsCurrencyTypeFuel       CurrencyTransactionLogsCurrencyType = "fuel"
+	CurrencyTransactionLogsCurrencyTypePassengers CurrencyTransactionLogsCurrencyType = "passengers"
+)
+
+func (e *CurrencyTransactionLogsCurrencyType) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = CurrencyTransactionLogsCurrencyType(s)
+	case string:
+		*e = CurrencyTransactionLogsCurrencyType(s)
+	default:
+		return fmt.Errorf("unsupported scan type for CurrencyTransactionLogsCurrencyType: %T", src)
+	}
+	return nil
+}
+
+type NullCurrencyTransactionLogsCurrencyType struct {
+	CurrencyTransactionLogsCurrencyType CurrencyTransactionLogsCurrencyType
+	Valid                               bool // Valid is true if CurrencyTransactionLogsCurrencyType is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullCurrencyTransactionLogsCurrencyType) Scan(value interface{}) error {
+	if value == nil {
+		ns.CurrencyTransactionLogsCurrencyType, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.CurrencyTransactionLogsCurrencyType.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullCurrencyTransactionLogsCurrencyType) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.CurrencyTransactionLogsCurrencyType), nil
+}
+
+type PlanesAircraftSize string
+
+const (
+	PlanesAircraftSizeSmall  PlanesAircraftSize = "small"
+	PlanesAircraftSizeMedium PlanesAircraftSize = "medium"
+	PlanesAircraftSizeLarge  PlanesAircraftSize = "large"
+	PlanesAircraftSizeHuge   PlanesAircraftSize = "huge"
+)
+
+func (e *PlanesAircraftSize) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = PlanesAircraftSize(s)
+	case string:
+		*e = PlanesAircraftSize(s)
+	default:
+		return fmt.Errorf("unsupported scan type for PlanesAircraftSize: %T", src)
+	}
+	return nil
+}
+
+type NullPlanesAircraftSize struct {
+	PlanesAircraftSize PlanesAircraftSize
+	Valid              bool // Valid is true if PlanesAircraftSize is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullPlanesAircraftSize) Scan(value interface{}) error {
+	if value == nil {
+		ns.PlanesAircraftSize, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.PlanesAircraftSize.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullPlanesAircraftSize) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.PlanesAircraftSize), nil
+}
+
+type PlanesAircraftType string
+
+const (
+	PlanesAircraftTypePlane      PlanesAircraftType = "plane"
+	PlanesAircraftTypeHelicopter PlanesAircraftType = "helicopter"
+	PlanesAircraftTypeSeaplane   PlanesAircraftType = "seaplane"
+	PlanesAircraftTypeSpaceship  PlanesAircraftType = "spaceship"
+)
+
+func (e *PlanesAircraftType) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = PlanesAircraftType(s)
+	case string:
+		*e = PlanesAircraftType(s)
+	default:
+		return fmt.Errorf("unsupported scan type for PlanesAircraftType: %T", src)
+	}
+	return nil
+}
+
+type NullPlanesAircraftType struct {
+	PlanesAircraftType PlanesAircraftType
+	Valid              bool // Valid is true if PlanesAircraftType is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullPlanesAircraftType) Scan(value interface{}) error {
+	if value == nil {
+		ns.PlanesAircraftType, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.PlanesAircraftType.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullPlanesAircraftType) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.PlanesAircraftType), nil
+}
+
+type PlanesOperationType string
+
+const (
+	PlanesOperationTypePassenger PlanesOperationType = "passenger"
+	PlanesOperationTypeCargo     PlanesOperationType = "cargo"
+)
+
+func (e *PlanesOperationType) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = PlanesOperationType(s)
+	case string:
+		*e = PlanesOperationType(s)
+	default:
+		return fmt.Errorf("unsupported scan type for PlanesOperationType: %T", src)
+	}
+	return nil
+}
+
+type NullPlanesOperationType struct {
+	PlanesOperationType PlanesOperationType
+	Valid               bool // Valid is true if PlanesOperationType is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullPlanesOperationType) Scan(value interface{}) error {
+	if value == nil {
+		ns.PlanesOperationType, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.PlanesOperationType.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullPlanesOperationType) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.PlanesOperationType), nil
+}
+
+type PlayerPlanesStatus string
+
+const (
+	PlayerPlanesStatusIdle        PlayerPlanesStatus = "idle"
+	PlayerPlanesStatusMaintenance PlayerPlanesStatus = "maintenance"
+	PlayerPlanesStatusBoarding    PlayerPlanesStatus = "boarding"
+	PlayerPlanesStatusTaxiing     PlayerPlanesStatus = "taxiing"
+	PlayerPlanesStatusFlying      PlayerPlanesStatus = "flying"
+)
+
+func (e *PlayerPlanesStatus) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = PlayerPlanesStatus(s)
+	case string:
+		*e = PlayerPlanesStatus(s)
+	default:
+		return fmt.Errorf("unsupported scan type for PlayerPlanesStatus: %T", src)
+	}
+	return nil
+}
+
+type NullPlayerPlanesStatus struct {
+	PlayerPlanesStatus PlayerPlanesStatus
+	Valid              bool // Valid is true if PlayerPlanesStatus is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullPlayerPlanesStatus) Scan(value interface{}) error {
+	if value == nil {
+		ns.PlayerPlanesStatus, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.PlayerPlanesStatus.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullPlayerPlanesStatus) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.PlayerPlanesStatus), nil
+}
+
+type Airport struct {
+	ID                      uint32
+	Name                    string
+	UserID                  int32
+	OriginCountryID         uint16
+	Cash                    uint64
+	CurrentPassengers       uint32
+	MaxPassengerCapacity    uint32
+	CurrentFuel             uint32
+	MaxFuelCapacity         uint32
+	FuelGenerationRate      uint32
+	PassengerGenerationRate uint32
+	ResourcesLastUpdatedAt  time.Time
+	IsAvailable             bool
+	PlayerLevel             uint32
+	ExperiencePoints        uint64
+	IsDeleted               sql.NullBool
+}
+
+type AirportBuilding struct {
+	ID             uint32
+	AirportID      uint32
+	BuildingID     uint32
+	RecipeID       sql.NullInt32
+	StorageProduct sql.NullInt32
+	Storage1       sql.NullInt32
+	Storage2       sql.NullInt32
+	Storage3       sql.NullInt32
+	Level          uint32
+}
+
+type AirportContract struct {
+	ID                     uint32
+	AirportID              uint32
+	Title                  string
+	RequiredProductID      uint16
+	RequiredAmount         uint32
+	CurrentAmountDelivered uint32
+	IsCompleted            bool
+	ExpiresAt              time.Time
+}
+
+type AirportInventory struct {
+	AirportID uint32
+	ProductID uint16
+	Quantity  uint32
+}
+
+type Building struct {
+	ID                      uint32
+	Name                    string
+	MinLevel                uint32
+	ConstructionCostCash    uint32
+	UpgradeTier             sql.NullInt16
+	UpgradeCostCashToUptier sql.NullInt32
+	BuildingType            BuildingsBuildingType
+	Capacity                sql.NullInt32
+	StorageType             NullBuildingsStorageType
+	StorageSubtype          NullBuildingsStorageSubtype
+	EffectID                sql.NullInt16
+	EffectValue             sql.NullInt32
+	OperationSize           NullBuildingsOperationSize
+	OperationType           NullBuildingsOperationType
+	PassiveType             NullBuildingsPassiveType
+	PassiveRate             sql.NullInt32
+}
+
+type BuildingProduct struct {
+	ID             uint32
+	BuildingID     uint32
+	RecipeID       sql.NullInt32
+	StorageProduct sql.NullInt32
+	Storage1       sql.NullInt32
+	Storage2       sql.NullInt32
+	Storage3       sql.NullInt32
+}
+
+type CompletedFlightRoutesLog struct {
+	ID                   uint32
+	OriginAirportID      uint32
+	DestinationAirportID uint32
+	StartTime            time.Time
+	EndTime              sql.NullTime
+}
+
+type Country struct {
+	ID         uint16
+	Name       string
+	Continent  CountriesContinent
+	Produce1ID uint16
+	Produce2ID uint16
+	Produce3ID uint16
+}
+
+type CurrencyTransactionLog struct {
+	ID            uint64
+	AirportID     uint32
+	AmountChanged int32
+	CurrencyType  CurrencyTransactionLogsCurrencyType
+	Reason        string
+	CreatedAt     sql.NullTime
+}
+
+type Effect struct {
+	ID   uint16
+	Name string
+}
+
+type Plane struct {
+	ID                         uint32
+	Name                       string
+	MinLevel                   uint32
+	OperationCostFuel          uint32
+	OperationCostCash          uint32
+	MaxPassengers              sql.NullInt32
+	TravelTimeInseconds        uint32
+	OperationType              PlanesOperationType
+	AircraftSize               PlanesAircraftSize
+	AircraftType               PlanesAircraftType
+	BuyingCostCash             uint32
+	CompletedFlightExperience  uint32
+	CompletedFlightCashReward  sql.NullInt32
+	CompletedFlightCargoReward sql.NullInt32
+}
+
+type PlayerPlane struct {
+	ID                uint32
+	AirportID         uint32
+	PlaneID           uint32
+	AssignedHangarID  uint32
+	CurrentBuildingID sql.NullInt32
+	Status            PlayerPlanesStatus
+	UpdatedAt         sql.NullTime
+	FlightStartTime   sql.NullTime
+}
+
+type Product struct {
+	ID   uint16
+	Name string
+}
+
+type Recipe struct {
+	ID                uint32
+	Name              string
+	Ingredient1ID     sql.NullInt16
+	Ingredient1Amount sql.NullInt32
+	Ingredient2ID     sql.NullInt16
+	Ingredient2Amount sql.NullInt32
+	Ingredient3ID     sql.NullInt16
+	Ingredient3Amount sql.NullInt32
+	ProductID         uint16
+	YieldAmount       uint32
+}
+
+type User struct {
+	ID           int32
+	Username     string
+	PasswordHash string
+	CreatedAt    sql.NullTime
+	DeletedAt    sql.NullTime
+}

backend/server/homepage.go

@@ -1 +1,205 @@
 package main
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+)
+
+// ============================================================================
+// STYLING DEFINITIONS (Lipgloss)
+// ============================================================================
+var (
+	// Colors
+	skyBlue    = lipgloss.Color("117")
+	neonPink   = lipgloss.Color("205")
+	moneyGreen = lipgloss.Color("85")
+	gray       = lipgloss.Color("240")
+
+	// Component Styles
+	titleStyle = lipgloss.NewStyle().
+			Foreground(skyBlue).
+			Bold(true).
+			MarginTop(1).
+			MarginBottom(1)
+
+	headerBoxStyle = lipgloss.NewStyle().
+			Border(lipgloss.RoundedBorder()).
+			BorderForeground(skyBlue).
+			Padding(0, 2).
+			MarginBottom(1)
+
+	listStyle = lipgloss.NewStyle().MarginLeft(2)
+
+	itemStyle = lipgloss.NewStyle().
+			PaddingLeft(2).
+			Foreground(lipgloss.Color("252"))
+
+	selectedItemStyle = lipgloss.NewStyle().
+				PaddingLeft(2).
+				Foreground(neonPink).
+				Bold(true).
+				Background(lipgloss.Color("236")) // Slight background highlight
+
+	footerStyle = lipgloss.NewStyle().
+			Foreground(gray).
+			MarginTop(2)
+)
+
+// ============================================================================
+// 1. THE MODEL
+// ============================================================================
+type homepageModel struct {
+	cursor   int
+	choices  []string
+	selected string
+
+	// Mock Player Data (In a real app, pass this in via initialModel)
+	playerName string
+	cash       int
+	fleetCount int
+}
+
+func initialHomepageModel() homepageModel {
+	return homepageModel{
+		// Our interactive menu options
+		choices: []string{
+			"🗄️  Manage Hangar Fleet",
+			"🏢  View Airport Infrastructure",
+			"🏁  Active Runways & Service Loop",
+			"🚪  Logout / Quit",
+		},
+		playerName: "CaptainGo",
+		cash:       14500,
+		fleetCount: 12,
+	}
+}
+
+// ============================================================================
+// 2. THE INIT FUNCTION
+// ============================================================================
+func (m homepageModel) Init() tea.Cmd {
+	return nil // No background tasks to start immediately
+}
+
+// ============================================================================
+// 3. THE UPDATE FUNCTION (Handles inputs)
+// ============================================================================
+func (m homepageModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+
+	// Handle keyboard events
+	case tea.KeyMsg:
+		switch msg.String() {
+
+		// Quit commands
+		case "ctrl+c", "q", "esc":
+			m.selected = "quit"
+			return m, tea.Quit
+
+		// Move up the menu
+		case "up", "k":
+			if m.cursor > 0 {
+				m.cursor--
+			} else {
+				m.cursor = len(m.choices) - 1 // Wrap around to bottom
+			}
+
+		// Move down the menu
+		case "down", "j":
+			if m.cursor < len(m.choices)-1 {
+				m.cursor++
+			} else {
+				m.cursor = 0 // Wrap around to top
+			}
+
+		// Select an option
+		case "enter", " ":
+			m.selected = m.choices[m.cursor]
+			return m, tea.Quit
+		}
+	}
+
+	return m, nil
+}
+
+// ============================================================================
+// 4. THE VIEW FUNCTION (Renders the UI)
+// ============================================================================
+func (m homepageModel) View() string {
+	var b strings.Builder
+
+	// --- 1. TITLE ---
+	b.WriteString(titleStyle.Render("✈️  SKYRAMA COMMAND CENTER"))
+	b.WriteString("\n")
+
+	// --- 2. HEADER BAR (Player Stats) ---
+	statsLine := fmt.Sprintf("[ 🔑 Player: %s ]  [ 💰 Cash: %s ]  [ 🛩️ Fleet: %d ]",
+		lipgloss.NewStyle().Foreground(lipgloss.Color("252")).Bold(true).Render(m.playerName),
+		lipgloss.NewStyle().Foreground(moneyGreen).Render(fmt.Sprintf("%d €", m.cash)),
+		m.fleetCount,
+	)
+	b.WriteString(headerBoxStyle.Render(statsLine))
+	b.WriteString("\n\n")
+
+	// --- 3. INTERACTIVE MENU ---
+	b.WriteString("  Main Operations Menu:\n\n")
+
+	for i, choice := range m.choices {
+		// Is the cursor pointing at this choice?
+		cursorStr := " " // no cursor
+		if m.cursor == i {
+			cursorStr = lipgloss.NewStyle().Foreground(neonPink).Render(">")
+			b.WriteString(fmt.Sprintf("%s %s\n", cursorStr, selectedItemStyle.Render(choice)))
+		} else {
+			b.WriteString(fmt.Sprintf("%s %s\n", cursorStr, itemStyle.Render(choice)))
+		}
+	}
+
+	// --- 4. FOOTER ---
+	b.WriteString(footerStyle.Render("\n  ↑/↓: Navigate • Enter: Select • q/esc: Quit"))
+
+	// Return the final drawn screen with a little left margin padding
+	return lipgloss.NewStyle().MarginLeft(2).Render(b.String()) + "\n"
+}
+
+// ============================================================================
+// THE WRAPPER FUNCTION
+// ============================================================================
+// RunHomepageScreen starts the TUI and returns the menu string the user selected.
+func RunHomepageScreen() string {
+	p := tea.NewProgram(initialHomepageModel(), tea.WithAltScreen()) // AltScreen creates a full-screen view
+
+	finalModel, err := p.Run()
+	if err != nil {
+		fmt.Printf("Error running dashboard: %v", err)
+		os.Exit(1)
+	}
+
+	if m, ok := finalModel.(homepageModel); ok {
+		return m.selected
+	}
+
+	return "quit"
+}
+
+/*
+// Optional Main function to test it directly
+func main() {
+	selection := RunHomepageScreen()
+
+	// Clear the screen on exit to print standard output
+	fmt.Print("\033[H\033[2J")
+
+	if selection == "quit" || selection == "🚪  Logout / Quit" {
+		fmt.Println("Gracefully disconnected from SkyRama servers. Goodbye!")
+		os.Exit(0)
+	}
+
+	fmt.Printf("You selected: %s\n", selection)
+	fmt.Println("Here is where you would load the next Bubble Tea model for that screen!")
+}
+*/

backend/server/login.go

@@ -1 +1,206 @@
 package main
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/charmbracelet/bubbles/textinput"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+)
+
+// ============================================================================
+// STYLING DEFINITIONS (Lipgloss)
+// ============================================================================
+var (
+	focusedStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("205")).Bold(true)
+	blurredStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("240"))
+	cursorStyle  = focusedStyle.Copy()
+	noStyle      = lipgloss.NewStyle()
+
+	// A nice box around the login screen
+	dialogBoxStyle = lipgloss.NewStyle().
+			Border(lipgloss.RoundedBorder()).
+			BorderForeground(lipgloss.Color("87")).
+			Padding(1, 4).
+			MarginTop(1).
+			MarginLeft(2)
+)
+
+// ============================================================================
+// 1. THE MODEL
+// ============================================================================
+type loginModel struct {
+	focusIndex int
+	inputs     []textinput.Model
+	cursorMode textinput.CursorMode
+
+	// Flags to return back to the main application
+	isSubmitted  bool
+	isCanceled   bool
+	errorMessage string
+}
+
+func initialModell() loginModel {
+	m := loginModel{
+		inputs: make([]textinput.Model, 2),
+	}
+
+	var t textinput.Model
+	for i := range m.inputs {
+		t = textinput.New()
+		t.Cursor.Style = cursorStyle
+		t.CharLimit = 32
+
+		switch i {
+		case 0:
+			t.Placeholder = "Username"
+			t.Focus()
+			t.PromptStyle = focusedStyle
+			t.TextStyle = focusedStyle
+		case 1:
+			t.Placeholder = "Password"
+			t.EchoMode = textinput.EchoPassword // Masks the password with *
+			t.EchoCharacter = '•'
+		}
+
+		m.inputs[i] = t
+	}
+
+	return m
+}
+
+// ============================================================================
+// 2. THE INIT FUNCTION (Runs once on startup)
+// ============================================================================
+func (m loginModel) Init() tea.Cmd {
+	return textinput.Blink
+}
+
+// ============================================================================
+// 3. THE UPDATE FUNCTION (Handles keypresses)
+// ============================================================================
+func (m loginModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		switch msg.String() {
+		case "ctrl+c", "esc":
+			m.isCanceled = true
+			return m, tea.Quit
+
+		// Handle switching between username and password fields
+		case "tab", "shift+tab", "enter", "up", "down":
+			s := msg.String()
+
+			// If they press Enter on the password field, submit the form
+			if s == "enter" && m.focusIndex == len(m.inputs)-1 {
+				m.isSubmitted = true
+				return m, tea.Quit
+			}
+
+			// Cycle through inputs
+			if s == "up" || s == "shift+tab" {
+				m.focusIndex--
+			} else {
+				m.focusIndex++
+			}
+
+			if m.focusIndex > len(m.inputs)-1 {
+				m.focusIndex = 0
+			} else if m.focusIndex < 0 {
+				m.focusIndex = len(m.inputs) - 1
+			}
+
+			// Apply focus states
+			cmds := make([]tea.Cmd, len(m.inputs))
+			for i := 0; i <= len(m.inputs)-1; i++ {
+				if i == m.focusIndex {
+					cmds[i] = m.inputs[i].Focus()
+					m.inputs[i].PromptStyle = focusedStyle
+					m.inputs[i].TextStyle = focusedStyle
+					continue
+				}
+				m.inputs[i].Blur()
+				m.inputs[i].PromptStyle = noStyle
+				m.inputs[i].TextStyle = noStyle
+			}
+
+			return m, tea.Batch(cmds...)
+		}
+	}
+
+	// Handle character inputs and blinking
+	cmd := m.updateInputs(msg)
+	return m, cmd
+}
+
+func (m *loginModel) updateInputs(msg tea.Msg) tea.Cmd {
+	cmds := make([]tea.Cmd, len(m.inputs))
+	for i := range m.inputs {
+		m.inputs[i], cmds[i] = m.inputs[i].Update(msg)
+	}
+	return tea.Batch(cmds...)
+}
+
+// ============================================================================
+// 4. THE VIEW FUNCTION (Renders the UI)
+// ============================================================================
+func (m loginModel) View() string {
+	// Build the UI string
+	var b strings.Builder
+
+	b.WriteString(lipgloss.NewStyle().Bold(true).Foreground(lipgloss.Color("78")).Render("✈️  SKYRAMA TERMINAL LOGIN\n\n"))
+
+	for i := range m.inputs {
+		b.WriteString(m.inputs[i].View())
+		if i < len(m.inputs)-1 {
+			b.WriteRune('\n')
+		}
+	}
+
+	button := &lipgloss.Style{}
+	if m.focusIndex == len(m.inputs) {
+		button = &focusedStyle
+	} else {
+		button = &blurredStyle
+	}
+
+	b.WriteString("\n")
+	if m.errorMessage != "" {
+		b.WriteString(lipgloss.NewStyle().Foreground(lipgloss.Color("9")).Render("⚠️ " + m.errorMessage + "\n"))
+	} else {
+		b.WriteString("\n")
+	}
+	b.WriteString(button.Render("[ Submit ]"))
+	b.WriteString(blurredStyle.Render("\n\n(esc to quit)"))
+
+	// Wrap the whole thing in our dialog box
+	return dialogBoxStyle.Render(b.String()) + "\n"
+}
+
+// ============================================================================
+// THE WRAPPER FUNCTION (Call this from your app)
+// ============================================================================
+// RunLoginScreen starts the TUI and returns the username, password, and a boolean
+// indicating if the user completed the form (true) or pressed escape (false).
+func RunLoginScreen() (username string, password string, submitted bool) {
+
+	p := tea.NewProgram(initialModell())
+
+	// Run the Bubble Tea program synchronously
+	finalModel, err := p.Run()
+	if err != nil {
+		fmt.Printf("Error running login screen: %v", err)
+		os.Exit(1)
+	}
+
+	// Cast the returned tea.Model back into our specific loginModel
+	if m, ok := finalModel.(loginModel); ok {
+		if m.isSubmitted {
+			return m.inputs[0].Value(), m.inputs[1].Value(), true
+		}
+	}
+
+	return "", "", false
+}

backend/server/main.go

@@ -0,0 +1,182 @@
+package main
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"os"
+
+	tea "github.com/charmbracelet/bubbletea"
+	_ "github.com/go-sql-driver/mysql" // MySQL Driver
+	"golang.org/x/crypto/bcrypt"
+
+	// CHANGE THIS to match your go.mod name + /dba
+	"skyrama_clone_backend/backend/db"
+)
+
+// ============================================================================
+// 1. STATE DEFINITIONS
+// ============================================================================
+type sessionState int
+
+const (
+	stateLogin sessionState = iota
+	stateHomepage
+)
+
+// ============================================================================
+// 2. THE MASTER MODEL (The Router)
+// ============================================================================
+type mainModel struct {
+	state   sessionState
+	queries *db.Queries // <-- NEW: Holds our database queries
+
+	login    loginModel
+	homepage homepageModel
+}
+
+func initialModel(q *db.Queries) mainModel {
+	return mainModel{
+		state:    stateLogin,
+		queries:  q,
+		login:    initialModell(),
+		homepage: initialHomepageModel(),
+	}
+}
+
+func (m mainModel) Init() tea.Cmd {
+	return m.login.Init()
+}
+
+// ============================================================================
+// 3. THE MASTER UPDATE (Traffic Cop & Authentication)
+// ============================================================================
+func (m mainModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	if keyMsg, ok := msg.(tea.KeyMsg); ok && keyMsg.String() == "ctrl+c" {
+		return m, tea.Quit
+	}
+
+	//var cmd tea.Cmd
+	var cmds []tea.Cmd
+	ctx := context.Background()
+
+	switch m.state {
+
+	case stateLogin:
+		newLoginModel, loginCmd := m.login.Update(msg)
+		m.login = newLoginModel.(loginModel)
+		cmds = append(cmds, loginCmd)
+
+		// Did the user press Enter on the Submit button?
+		if m.login.isSubmitted {
+			username := m.login.inputs[0].Value()
+			password := m.login.inputs[1].Value()
+
+			// 1. Fetch the user from the database
+			user, err := m.queries.GetUserByUsername(ctx, username)
+			if err != nil {
+				m.login.errorMessage = "User not found."
+				m.login.isSubmitted = false // Reset so they can try again
+				return m, nil
+			}
+
+			// 2. Verify the password hash
+			err = bcrypt.CompareHashAndPassword([]byte(user.PasswordHash), []byte(password))
+			if err != nil {
+				m.login.errorMessage = "Invalid password."
+				m.login.isSubmitted = false // Reset so they can try again
+				return m, nil
+			}
+
+			// 3. Fetch their Airport Data
+			// Note: user.ID is int32 in sqlc (based on schema)
+			airport, err := m.queries.GetAirportByUserId(ctx, user.ID)
+			if err != nil {
+				m.login.errorMessage = "No airport found for this user."
+				m.login.isSubmitted = false
+				return m, nil
+			}
+
+			// 4. Fetch their Fleet Count
+			// Note: airport.ID is uint32, GetPlayerFleet expects the correct type
+			fleet, _ := m.queries.GetPlayerFleet(ctx, airport.ID)
+
+			// 5. SUCCESS! Push real data to the homepage and switch screens
+			m.homepage.playerName = user.Username
+			m.homepage.cash = int(airport.Cash)
+			m.homepage.fleetCount = len(fleet)
+
+			m.state = stateHomepage
+			cmds = append(cmds, m.homepage.Init())
+		} else if m.login.isCanceled {
+			return m, tea.Quit
+		}
+
+	case stateHomepage:
+		newHomepageModel, homeCmd := m.homepage.Update(msg)
+		m.homepage = newHomepageModel.(homepageModel)
+		cmds = append(cmds, homeCmd)
+
+		if m.homepage.selected != "" {
+			if m.homepage.selected == "🚪  Logout / Quit" {
+				return m, tea.Quit
+			}
+			// Placeholder for other menus
+			return m, tea.Quit
+		}
+	}
+
+	return m, tea.Batch(cmds...)
+}
+
+func (m mainModel) View() string {
+	switch m.state {
+	case stateLogin:
+		return m.login.View()
+	case stateHomepage:
+		return m.homepage.View()
+	default:
+		return "Error: Unknown state"
+	}
+}
+
+// ============================================================================
+// MAIN EXECUTION WITH DATABASE POOL
+// ============================================================================
+func main() {
+	// 1. Connect to MySQL Database
+	// Ensure ?parseTime=true is present!
+	dsn := "skyramaUser:Skyrama1234.@tcp(127.0.0.1:3306)/skyrama_clone?parseTime=true"
+	dbConn, err := sql.Open("mysql", dsn)
+	if err != nil {
+		fmt.Printf("Error opening database pool: %v\n", err)
+		os.Exit(1)
+	}
+	defer dbConn.Close()
+
+	if err := dbConn.Ping(); err != nil {
+		fmt.Printf("Database unreachable: %v\n", err)
+		os.Exit(1)
+	}
+
+	// 2. Initialize sqlc queries
+	queries := db.New(dbConn)
+
+	// 3. Start the Bubble Tea UI, passing the database into the model
+	p := tea.NewProgram(initialModel(queries), tea.WithAltScreen())
+
+	finalModel, err := p.Run()
+	if err != nil {
+		fmt.Printf("Fatal error starting SkyRama: %v", err)
+		os.Exit(1)
+	}
+
+	fmt.Print("\033[H\033[2J") // Clear terminal on exit
+	if m, ok := finalModel.(mainModel); ok {
+		if m.state == stateHomepage && m.homepage.selected != "" && m.homepage.selected != "🚪  Logout / Quit" {
+			fmt.Printf("You clicked '%s', which we will build next!\n", m.homepage.selected)
+		} else {
+			fmt.Println("Gracefully disconnected from SkyRama servers. Goodbye!")
+		}
+	}
+}

backend/utils/packet_utils.go

@@ -1 +1,78 @@
 package utils
+
+import "skyrama_clone_backend/backend/objects"
+
+type Msg = isPacket_Msg
+
+func NewChat(msg string) Msg {
+	return &Packet_Chat{
+		Chat: &ChatMessage{
+			Msg: msg,
+		},
+	}
+}
+
+func NewId(id uint64) Msg {
+	return &Packet_Id{
+		Id: &IdMessage{
+			Id: id,
+		},
+	}
+}
+
+func NewOkResponse() Msg {
+	return &Packet_OkResponse{
+		OkResponse: &OkResponseMessage{},
+	}
+}
+
+func NewDenyResponse(reason string) Msg {
+	return &Packet_DenyResponse{
+		DenyResponse: &DenyResponseMessage{
+			Reason: reason,
+		},
+	}
+}
+
+func NewPlayer(id uint64, player *objects.Player) Msg {
+	return &Packet_Player{
+		Player: &PlayerMessage{
+			Id:        id,
+			Name:      player.Name,
+			X:         player.X,
+			Y:         player.Y,
+			Radius:    player.Radius,
+			Direction: player.Direction,
+			Speed:     player.Speed,
+		},
+	}
+}
+
+func newSporeMessage(id uint64, spore *objects.Spore) *SporeMessage {
+	return &SporeMessage{
+		Id:     id,
+		X:      spore.X,
+		Y:      spore.Y,
+		Radius: spore.Radius,
+	}
+}
+func NewSpore(id uint64, spore *objects.Spore) Msg {
+	return &Packet_Spore{
+		newSporeMessage(id, spore),
+	}
+}
+
+func NewSporeBatches(spores map[uint64]*objects.Spore) Msg {
+
+	SporeMessages := make([]*SporeMessage, len(spores))
+	for id, spore := range spores {
+		SporeMessages = append(SporeMessages, newSporeMessage(id, spore))
+
+	}
+
+	return &Packet_SporeBatch{
+		SporeBatch: &SporesBatchMessage{
+			Spores: SporeMessages,
+		},
+	}
+}

go.mod

@@ -0,0 +1,33 @@
+module skyrama_clone_backend
+
+go 1.26.3
+
+require (
+	filippo.io/edwards25519 v1.2.0 // indirect
+	github.com/atotto/clipboard v0.1.4 // indirect
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
+	github.com/charmbracelet/bubbles v1.0.0 // indirect
+	github.com/charmbracelet/bubbletea v1.3.10 // indirect
+	github.com/charmbracelet/colorprofile v0.4.1 // indirect
+	github.com/charmbracelet/lipgloss v1.1.0 // indirect
+	github.com/charmbracelet/x/ansi v0.11.6 // indirect
+	github.com/charmbracelet/x/cellbuf v0.0.15 // indirect
+	github.com/charmbracelet/x/term v0.2.2 // indirect
+	github.com/clipperhouse/displaywidth v0.9.0 // indirect
+	github.com/clipperhouse/stringish v0.1.1 // indirect
+	github.com/clipperhouse/uax29/v2 v2.5.0 // indirect
+	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
+	github.com/go-sql-driver/mysql v1.10.0 // indirect
+	github.com/lucasb-eyer/go-colorful v1.3.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-localereader v0.0.1 // indirect
+	github.com/mattn/go-runewidth v0.0.19 // indirect
+	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
+	github.com/muesli/cancelreader v0.2.2 // indirect
+	github.com/muesli/termenv v0.16.0 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	golang.org/x/crypto v0.52.0 // indirect
+	golang.org/x/sys v0.45.0 // indirect
+	golang.org/x/text v0.37.0 // indirect
+)

go.sum

@@ -0,0 +1,75 @@
+filippo.io/edwards25519 v1.2.0 h1:crnVqOiS4jqYleHd9vaKZ+HKtHfllngJIiOpNpoJsjo=
+filippo.io/edwards25519 v1.2.0/go.mod h1:xzAOLCNug/yB62zG1bQ8uziwrIqIuxhctzJT18Q77mc=
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+github.com/charmbracelet/colorprofile v0.2.3-0.20250311203215-f60798e515dc/go.mod h1:X4/0JoqgTIPSFcRA/P6INZzIuyqdFY5rm8tb41s9okk=
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+github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY=
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shared/packets.proto

@@ -0,0 +1,47 @@
+syntax = "proto3";
+//                protoc -I=shared --go_out=backend .\shared\packets.proto
+package packets;
+option go_package = "utils/";
+
+message ChatMessage { string msg = 1; }
+message IdMessage { uint64 id = 1; }
+message LoginRequestMessage { string username = 1; string password = 2; }
+message RegisterRequestMessage { string username = 1; string password = 2; int32 color = 3; }
+message OkResponseMessage { }
+message DenyResponseMessage { string reason = 1; }
+message PlayerMessage { uint64 id = 1; string name = 2; double x = 3; double y = 4; double radius = 5; double direction = 6; double speed = 7; int32 color = 8; }
+message PlayerDirectionMessage { double direction = 1; }
+message SporeMessage { uint64 id = 1; double x = 2; double y = 3; double radius = 4; }
+message SporeConsumedMessage { uint64 spore_id = 1; }
+message SporesBatchMessage { repeated SporeMessage spores = 1; }
+message PlayerConsumedMessage { uint64 player_id = 1; }
+message HiscoreBoardRequestMessage { }
+message HiscoreMessage { uint64 rank = 1; string name = 2; uint64 score = 3; }
+message HiscoreBoardMessage { repeated HiscoreMessage hiscores = 1; }
+message FinishedBrowsingHiscoresMessage { }
+message SearchHiscoreMessage { string name = 1; }
+message DisconnectMessage { string reason = 1; }
+
+message Packet {
+    uint64 sender_id = 1;
+    oneof msg {
+        ChatMessage chat = 2;
+        IdMessage id = 3;
+        LoginRequestMessage login_request = 4;
+        RegisterRequestMessage register_request = 5;
+        OkResponseMessage ok_response = 6;
+        DenyResponseMessage deny_response = 7;
+        PlayerMessage player = 8;
+        PlayerDirectionMessage player_direction = 9;
+        SporeMessage spore = 10;
+        SporeConsumedMessage spore_consumed = 11;
+        SporesBatchMessage spores_batch = 12;
+        PlayerConsumedMessage player_consumed = 13;
+        HiscoreBoardRequestMessage hiscore_board_request = 14;
+        HiscoreMessage hiscore = 15;
+        HiscoreBoardMessage hiscore_board = 16;
+        FinishedBrowsingHiscoresMessage finished_browsing_hiscores = 17;
+        SearchHiscoreMessage search_hiscore = 18;
+        DisconnectMessage disconnect = 19;
+    }
+}