package adminui

import (
	"strings"

	tea "github.com/charmbracelet/bubbletea"
	"github.com/charmbracelet/lipgloss"
	"skyrama-tui/internal/db"
)

var tabNames = []string{"Products", "Countries", "Buildings", "Planes", "Users", "Airports", "Factions"}

// App is the root admin model. It owns the tab bar and routes messages.
type App struct {
	tabs      []Tab
	activeTab int
	width     int
	height    int
}

// NewApp constructs the admin app and wires up all tab sub-models.
func NewApp(client *db.AdminClient) App {
	return App{
		tabs: []Tab{
			newProductsTab(client),
			newCountriesTab(client),
			newBuildingsTab(client),
			newPlanesTab(client),
			newUsersTab(client),
			newAirportsTab(client),
			newFactionsTab(client),
		},
	}
}

func (a App) Init() tea.Cmd {
	var cmds []tea.Cmd
	for _, t := range a.tabs {
		if cmd := t.Init(); cmd != nil {
			cmds = append(cmds, cmd)
		}
	}
	return tea.Batch(cmds...)
}

func (a App) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
	switch m := msg.(type) {
	case tea.WindowSizeMsg:
		a.width, a.height = m.Width, m.Height
		// Fan out window size to all tabs
		for i, t := range a.tabs {
			updated, _ := t.Update(msg)
			a.tabs[i] = updated.(Tab)
		}
		return a, nil

	case tea.KeyMsg:
		activeInForm := a.tabs[a.activeTab].InForm()

		// Global quit always works
		if m.String() == "ctrl+c" {
			return a, tea.Quit
		}

		// Tab switching only when not in a form
		if !activeInForm {
			switch m.String() {
			case "1", "2", "3", "4", "5", "6", "7":
				idx := int(m.String()[0] - '1')
				if idx < len(a.tabs) {
					a.activeTab = idx
				}
				return a, nil
			case "tab":
				a.activeTab = (a.activeTab + 1) % len(a.tabs)
				return a, nil
			case "shift+tab":
				a.activeTab = (a.activeTab - 1 + len(a.tabs)) % len(a.tabs)
				return a, nil
			}
		}
	}

	// Fan out non-key messages to all tabs; key messages only go to active tab
	if _, isKey := msg.(tea.KeyMsg); !isKey {
		var cmds []tea.Cmd
		for i, t := range a.tabs {
			updated, cmd := t.Update(msg)
			a.tabs[i] = updated.(Tab)
			if cmd != nil {
				cmds = append(cmds, cmd)
			}
		}
		return a, tea.Batch(cmds...)
	}

	updated, cmd := a.tabs[a.activeTab].Update(msg)
	a.tabs[a.activeTab] = updated.(Tab)
	return a, cmd
}

func (a App) View() string {
	// Tab bar
	var tabs []string
	for i, name := range tabNames {
		key := dimSt.Render(string(rune('1'+i))) + " "
		if i == a.activeTab {
			tabs = append(tabs, lipgloss.NewStyle().Bold(true).
				Foreground(lipgloss.Color("#E94560")).
				Render("["+key+name+"]"))
		} else {
			tabs = append(tabs, dimSt.Render(" "+key+name+" "))
		}
	}
	bar := strings.Join(tabs, dimSt.Render("│"))
	header := titleSt.Render("✈ SKYRAMA ADMIN") + "  " + bar

	divider := dimSt.Render(strings.Repeat("─", a.width))

	return header + "\n" + divider + "\n" + a.tabs[a.activeTab].View()
}