phase 0.3

internal/ui/contracts.go

@@ -0,0 +1,176 @@
+package ui
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	tea "github.com/charmbracelet/bubbletea"
+	"github.com/charmbracelet/lipgloss"
+
+	"skyrama-tui/internal/model"
+	"skyrama-tui/internal/service"
+	"skyrama-tui/internal/style"
+)
+
+// ─── Messages ─────────────────────────────────────────────────────────────────
+
+type ContractsLoadedMsg struct{ Contracts []model.Contract }
+type ContractsErrMsg struct{ Err error }
+
+// ─── ContractsModel ───────────────────────────────────────────────────────────
+
+type ContractsModel struct {
+	client    *service.GameService
+	airportID uint32
+	contracts []model.Contract
+	cursor    int
+	statusMsg string
+	focused   bool
+	width     int
+	height    int
+}
+
+func NewContractsModel(client *service.GameService, airportID uint32) ContractsModel {
+	return ContractsModel{client: client, airportID: airportID}
+}
+
+func (m ContractsModel) Init() tea.Cmd { return m.load() }
+
+func (m ContractsModel) Update(msg tea.Msg) (ContractsModel, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+
+	case ContractsLoadedMsg:
+		m.contracts = msg.Contracts
+		if m.cursor >= len(m.contracts) {
+			m.cursor = clampMin(len(m.contracts)-1, 0)
+		}
+
+	case ContractsErrMsg:
+		m.statusMsg = style.Error.String() + msg.Err.Error()
+
+	case tea.KeyMsg:
+		if !m.focused {
+			break
+		}
+		switch msg.String() {
+		case "up", "k":
+			if m.cursor > 0 {
+				m.cursor--
+			}
+		case "down", "j":
+			if m.cursor < len(m.contracts)-1 {
+				m.cursor++
+			}
+		case "r":
+			m.statusMsg = ""
+			return m, m.load()
+		}
+	}
+	return m, nil
+}
+
+func (m ContractsModel) View() string {
+	header := style.PanelHeader.Render("📋  Active Contracts")
+
+	statusLine := ""
+	if m.statusMsg != "" {
+		statusLine = "\n" + m.statusMsg + "\n"
+	}
+
+	if len(m.contracts) == 0 {
+		return lipgloss.JoinVertical(lipgloss.Left,
+			header,
+			statusLine,
+			"",
+			style.Muted.Render("No active contracts right now."),
+		)
+	}
+
+	rows := make([]string, len(m.contracts))
+	for i, c := range m.contracts {
+		rows[i] = m.renderContract(c, i == m.cursor)
+	}
+
+	help := style.HelpKey.Render("↑↓ / jk") + style.HelpDesc.Render(" navigate  ") +
+		style.HelpKey.Render("r") + style.HelpDesc.Render(" refresh")
+
+	return lipgloss.JoinVertical(lipgloss.Left,
+		header,
+		statusLine,
+		strings.Join(rows, "\n"),
+		"",
+		style.Muted.Render(help),
+	)
+}
+
+func (m ContractsModel) renderContract(c model.Contract, selected bool) string {
+	pct := c.ProgressPct()
+	barW := 24
+	bar := style.ResourceBar(int(c.CurrentAmountDelivered), int(c.RequiredAmount), barW, style.ColorGreen)
+
+	expiresIn := time.Until(c.ExpiresAt).Round(time.Minute)
+	urgency := style.Muted
+	if expiresIn < 30*time.Minute {
+		urgency = style.Error
+	} else if expiresIn < 2*time.Hour {
+		urgency = style.Warning
+	}
+
+	inner := lipgloss.JoinVertical(lipgloss.Left,
+		style.Bold.Render(c.Title),
+		style.Muted.Render(fmt.Sprintf("Deliver %d × %s", c.RequiredAmount, c.ProductName)),
+		lipgloss.JoinHorizontal(lipgloss.Top,
+			bar,
+			style.Muted.Render(fmt.Sprintf("  %d/%d (%d%%)",
+				c.CurrentAmountDelivered, c.RequiredAmount, pct)),
+		),
+		urgency.Render(fmt.Sprintf("⏰ Expires in %s", fmtContractDuration(expiresIn))),
+	)
+
+	if selected {
+		return style.PanelFocused.Render(inner)
+	}
+	return style.Panel.Render(inner)
+}
+
+// ─── Exported for parent AppModel ─────────────────────────────────────────────
+
+// Load is the exported version for use by parent AppModel.
+func (m ContractsModel) Load() tea.Cmd { return m.load() }
+
+func (m ContractsModel) load() tea.Cmd {
+	client := m.client
+	airportID := m.airportID
+	return func() tea.Msg {
+		contracts, err := client.GetActiveContracts(airportID)
+		if err != nil {
+			return ContractsErrMsg{Err: err}
+		}
+		return ContractsLoadedMsg{Contracts: contracts}
+	}
+}
+
+// ─── Helpers ──────────────────────────────────────────────────────────────────
+
+func clampMin(v, min int) int {
+	if v < min {
+		return min
+	}
+	return v
+}
+
+func fmtContractDuration(d time.Duration) string {
+	if d <= 0 {
+		return "expired"
+	}
+	h := int(d.Hours())
+	m := int(d.Minutes()) % 60
+	if h > 0 {
+		return fmt.Sprintf("%dh %dm", h, m)
+	}
+	return fmt.Sprintf("%dm", m)
+}