phase 0.3

internal/ui/shop.go

@@ -0,0 +1,203 @@
+package ui
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/charmbracelet/bubbles/list"
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+
+	"skyrama-tui/internal/model"
+	"skyrama-tui/internal/service"
+	"skyrama-tui/internal/style"
+)
+
+// ─── Messages ─────────────────────────────────────────────────────────────────
+
+type ShopLoadedMsg struct{ Planes []model.Plane }
+type ShopErrMsg struct{ Err error }
+type PlaneBoughtMsg struct{ Name string }
+
+// ─── List item ────────────────────────────────────────────────────────────────
+
+type shopPlaneItem struct{ p model.Plane }
+
+func (s shopPlaneItem) Title() string {
+	return fmt.Sprintf("%s %s  %s",
+		planeIcon(s.p.AircraftType),
+		s.p.Name,
+		style.CashChip.Render(fmt.Sprintf("$%d", s.p.BuyingCostCash)),
+	)
+}
+
+func (s shopPlaneItem) Description() string {
+	parts := []string{
+		style.Muted.Render(fmt.Sprintf("lv.%d", s.p.MinLevel)),
+		style.Muted.Render(s.p.AircraftSize + "/" + s.p.AircraftType),
+		style.FuelChip.Render(fmt.Sprintf("⛽%d", s.p.OperationCostFuel)),
+		style.Muted.Render(fmt.Sprintf("⏱%s", fmtDuration(int(s.p.TravelTimeInSeconds)))),
+		style.Muted.Render(fmt.Sprintf("✨%d xp", s.p.CompletedFlightExperience)),
+	}
+	if s.p.MaxPassengers.Valid && s.p.MaxPassengers.Int32 > 0 {
+		parts = append(parts,
+			style.PassengerChip.Render(fmt.Sprintf("👤%d", s.p.MaxPassengers.Int32)))
+	}
+	if s.p.CompletedFlightCashReward.Valid {
+		parts = append(parts,
+			style.CashChip.Render(fmt.Sprintf("💰%d/flight", s.p.CompletedFlightCashReward.Int32)))
+	}
+	return strings.Join(parts, "  ")
+}
+
+func (s shopPlaneItem) FilterValue() string { return s.p.Name }
+
+// ─── ShopModel ────────────────────────────────────────────────────────────────
+
+type ShopModel struct {
+	client      *service.GameService
+	airportID   uint32
+	playerLevel uint32
+	list        list.Model
+	planes      []model.Plane
+	statusMsg   string
+	focused     bool
+	width       int
+	height      int
+}
+
+func NewShopModel(client *service.GameService, airportID uint32, playerLevel uint32) ShopModel {
+	d := list.NewDefaultDelegate()
+	d.Styles.SelectedTitle = d.Styles.SelectedTitle.
+		Foreground(style.ColorGold).
+		BorderForeground(style.ColorGold)
+	d.Styles.SelectedDesc = d.Styles.SelectedDesc.
+		Foreground(style.ColorPassenger).
+		BorderForeground(style.ColorGold)
+
+	l := list.New(nil, d, 0, 0)
+	l.Title = ""
+	l.SetShowTitle(false)
+	l.SetShowHelp(false)
+	l.SetShowStatusBar(false)
+	l.SetFilteringEnabled(true)
+
+	return ShopModel{
+		client:      client,
+		airportID:   airportID,
+		playerLevel: playerLevel,
+		list:        l,
+	}
+}
+
+func (m ShopModel) Init() tea.Cmd { return m.load() }
+
+func (m ShopModel) Update(msg tea.Msg) (ShopModel, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+		m.list.SetSize(m.width-4, m.height-12)
+
+	case ShopLoadedMsg:
+		m.planes = msg.Planes
+		m.list.SetItems(m.planesToItems())
+
+	case PlaneBoughtMsg:
+		m.statusMsg = style.Success.String() + "Bought: " + msg.Name + "!"
+		return m, m.load()
+
+	case ShopErrMsg:
+		m.statusMsg = style.Error.String() + msg.Err.Error()
+
+	case tea.KeyMsg:
+		if !m.focused {
+			break
+		}
+		switch msg.String() {
+		case "r":
+			m.statusMsg = ""
+			return m, m.load()
+		case "enter", " ", "b":
+			item, ok := m.list.SelectedItem().(shopPlaneItem)
+			if !ok {
+				break
+			}
+			if item.p.MinLevel > m.playerLevel {
+				m.statusMsg = style.Warning.String() +
+					fmt.Sprintf("Requires level %d (you are level %d)",
+						item.p.MinLevel, m.playerLevel)
+				break
+			}
+			return m, m.buy(item.p)
+		}
+	}
+
+	var cmd tea.Cmd
+	m.list, cmd = m.list.Update(msg)
+	return m, cmd
+}
+
+func (m ShopModel) View() string {
+	header := style.PanelHeader.Render("🛒  Plane Shop")
+
+	levelNote := style.Info.String() + style.Muted.Render(
+		fmt.Sprintf("Your level: %d", m.playerLevel),
+	)
+
+	statusLine := ""
+	if m.statusMsg != "" {
+		statusLine = "\n" + m.statusMsg + "\n"
+	}
+
+	help := style.HelpKey.Render("enter / b") + style.HelpDesc.Render(" buy  ") +
+		style.HelpKey.Render("r") + style.HelpDesc.Render(" refresh  ") +
+		style.HelpKey.Render("/") + style.HelpDesc.Render(" filter")
+
+	return lipgloss.JoinVertical(lipgloss.Left,
+		header,
+		levelNote,
+		statusLine,
+		m.list.View(),
+		"",
+		style.Muted.Render(help),
+	)
+}
+
+// ─── Exported for parent AppModel ─────────────────────────────────────────────
+
+// Load is the exported version for use by parent AppModel.
+func (m ShopModel) Load() tea.Cmd { return m.load() }
+
+func (m ShopModel) load() tea.Cmd {
+	client := m.client
+	return func() tea.Msg {
+		planes, err := client.GetAllPlanes()
+		if err != nil {
+			return ShopErrMsg{Err: err}
+		}
+		return ShopLoadedMsg{Planes: planes}
+	}
+}
+
+func (m ShopModel) buy(p model.Plane) tea.Cmd {
+	client := m.client
+	airportID := m.airportID
+	planeID := p.ID
+	planeName := p.Name
+	return func() tea.Msg {
+		// The service finds a free hangar and parks the plane in one intent.
+		if err := client.BuyPlane(airportID, planeID); err != nil {
+			return ShopErrMsg{Err: err}
+		}
+		return PlaneBoughtMsg{Name: planeName}
+	}
+}
+
+func (m ShopModel) planesToItems() []list.Item {
+	items := make([]list.Item, len(m.planes))
+	for i, p := range m.planes {
+		items[i] = shopPlaneItem{p: p}
+	}
+	return items
+}