feat: 重构

model.go

@@ -0,0 +1,137 @@
+package main
+
+import (
+	"github.com/charmbracelet/bubbles/list"
+	"github.com/charmbracelet/bubbles/progress"
+	"github.com/charmbracelet/bubbles/spinner"
+	"github.com/charmbracelet/bubbles/textinput"
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+type page int
+
+const (
+	pageVersionSelect page = iota
+	pageMainMenu
+	pageCodeInput
+	pageExecuting
+)
+
+type model struct {
+	currentPage page
+	exeDir      string
+	versionDir  string
+	versionName string
+	width       int
+	height      int
+
+	versionList list.Model
+	menuList    list.Model
+	codeInput   textinput.Model
+
+	spinner   spinner.Model
+	progress  progress.Model
+	actions   []Action
+	actionIdx int
+	logLines  []string
+	execErr   error
+	execDone  bool
+
+	choosingMirror bool
+	mirrorList     list.Model
+	pendingAction  *Action
+	backupDir      string
+
+	progressCh chan float64
+}
+
+func newModel(exeDir string) model {
+	s := spinner.New()
+	s.Spinner = spinner.Dot
+
+	ti := textinput.New()
+	ti.Placeholder = "0000"
+	ti.CharLimit = 4
+	ti.Width = 10
+	ti.Validate = func(s string) error {
+		for _, r := range s {
+			if r < '0' || r > '9' {
+				return errNotDigit
+			}
+		}
+		return nil
+	}
+
+	delegate := list.NewDefaultDelegate()
+	vl := list.New(nil, delegate, 80, 20)
+	vl.Title = "选择 Minecraft 版本"
+	vl.SetFilteringEnabled(false)
+	vl.SetShowStatusBar(false)
+
+	ml := list.New(nil, delegate, 80, 20)
+	ml.Title = "主菜单"
+	ml.SetFilteringEnabled(false)
+	ml.SetShowStatusBar(false)
+
+	return model{
+		currentPage: pageVersionSelect,
+		exeDir:      exeDir,
+		spinner:     s,
+		progress:    progress.New(progress.WithDefaultGradient()),
+		codeInput:   ti,
+		versionList: vl,
+		menuList:    ml,
+	}
+}
+
+func (m model) Init() tea.Cmd {
+	return scanVersions(m.exeDir)
+}
+
+func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tea.KeyMsg:
+		if msg.String() == "ctrl+c" {
+			return m, tea.Quit
+		}
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+		h := msg.Height - 4
+		if h < 5 {
+			h = 5
+		}
+		m.versionList.SetSize(msg.Width, h)
+		m.menuList.SetSize(msg.Width, h)
+		m.progress.Width = msg.Width - 8
+		if m.progress.Width > 80 {
+			m.progress.Width = 80
+		}
+	}
+
+	switch m.currentPage {
+	case pageVersionSelect:
+		return updateVersionSelect(m, msg)
+	case pageMainMenu:
+		return updateMainMenu(m, msg)
+	case pageCodeInput:
+		return updateCodeInput(m, msg)
+	case pageExecuting:
+		return updateExecuting(m, msg)
+	}
+	return m, nil
+}
+
+func (m model) View() string {
+	switch m.currentPage {
+	case pageVersionSelect:
+		return viewVersionSelect(m)
+	case pageMainMenu:
+		return viewMainMenu(m)
+	case pageCodeInput:
+		return viewCodeInput(m)
+	case pageExecuting:
+		return viewExecuting(m)
+	}
+	return ""
+}