1package tui
2
3import (
4 "context"
5 "fmt"
6
7 "github.com/charmbracelet/bubbles/v2/key"
8 tea "github.com/charmbracelet/bubbletea/v2"
9 "github.com/charmbracelet/crush/internal/app"
10 "github.com/charmbracelet/crush/internal/config"
11 "github.com/charmbracelet/crush/internal/llm/agent"
12 "github.com/charmbracelet/crush/internal/logging"
13 "github.com/charmbracelet/crush/internal/permission"
14 "github.com/charmbracelet/crush/internal/pubsub"
15 cmpChat "github.com/charmbracelet/crush/internal/tui/components/chat"
16 "github.com/charmbracelet/crush/internal/tui/components/completions"
17 "github.com/charmbracelet/crush/internal/tui/components/core/layout"
18 "github.com/charmbracelet/crush/internal/tui/components/core/status"
19 "github.com/charmbracelet/crush/internal/tui/components/dialogs"
20 "github.com/charmbracelet/crush/internal/tui/components/dialogs/commands"
21 "github.com/charmbracelet/crush/internal/tui/components/dialogs/compact"
22 "github.com/charmbracelet/crush/internal/tui/components/dialogs/filepicker"
23 initDialog "github.com/charmbracelet/crush/internal/tui/components/dialogs/init"
24 "github.com/charmbracelet/crush/internal/tui/components/dialogs/models"
25 "github.com/charmbracelet/crush/internal/tui/components/dialogs/permissions"
26 "github.com/charmbracelet/crush/internal/tui/components/dialogs/quit"
27 "github.com/charmbracelet/crush/internal/tui/components/dialogs/sessions"
28 "github.com/charmbracelet/crush/internal/tui/page"
29 "github.com/charmbracelet/crush/internal/tui/page/chat"
30 "github.com/charmbracelet/crush/internal/tui/page/logs"
31 "github.com/charmbracelet/crush/internal/tui/styles"
32 "github.com/charmbracelet/crush/internal/tui/util"
33 "github.com/charmbracelet/lipgloss/v2"
34)
35
36// appModel represents the main application model that manages pages, dialogs, and UI state.
37type appModel struct {
38 wWidth, wHeight int // Window dimensions
39 width, height int
40 keyMap KeyMap
41
42 currentPage page.PageID
43 previousPage page.PageID
44 pages map[page.PageID]util.Model
45 loadedPages map[page.PageID]bool
46
47 // Status
48 status status.StatusCmp
49 showingFullHelp bool
50
51 app *app.App
52
53 dialog dialogs.DialogCmp
54 completions completions.Completions
55
56 // Chat Page Specific
57 selectedSessionID string // The ID of the currently selected session
58}
59
60// Init initializes the application model and returns initial commands.
61func (a appModel) Init() tea.Cmd {
62 var cmds []tea.Cmd
63 cmd := a.pages[a.currentPage].Init()
64 cmds = append(cmds, cmd)
65 a.loadedPages[a.currentPage] = true
66
67 cmd = a.status.Init()
68 cmds = append(cmds, cmd)
69
70 // Check if we should show the init dialog
71 cmds = append(cmds, func() tea.Msg {
72 shouldShow, err := config.ShouldShowInitDialog()
73 if err != nil {
74 return util.InfoMsg{
75 Type: util.InfoTypeError,
76 Msg: "Failed to check init status: " + err.Error(),
77 }
78 }
79 if shouldShow {
80 return dialogs.OpenDialogMsg{
81 Model: initDialog.NewInitDialogCmp(),
82 }
83 }
84 return nil
85 })
86
87 // Enable mouse support.
88 cmds = append(cmds, tea.EnableMouseAllMotion)
89
90 return tea.Batch(cmds...)
91}
92
93// Update handles incoming messages and updates the application state.
94func (a *appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
95 var cmds []tea.Cmd
96 var cmd tea.Cmd
97
98 switch msg := msg.(type) {
99 case tea.KeyboardEnhancementsMsg:
100 return a, nil
101 case tea.WindowSizeMsg:
102 return a, a.handleWindowResize(msg.Width, msg.Height)
103
104 // Completions messages
105 case completions.OpenCompletionsMsg, completions.FilterCompletionsMsg, completions.CloseCompletionsMsg:
106 u, completionCmd := a.completions.Update(msg)
107 a.completions = u.(completions.Completions)
108 return a, completionCmd
109
110 // Dialog messages
111 case dialogs.OpenDialogMsg, dialogs.CloseDialogMsg:
112 u, dialogCmd := a.dialog.Update(msg)
113 a.dialog = u.(dialogs.DialogCmp)
114 return a, dialogCmd
115 case commands.ShowArgumentsDialogMsg:
116 return a, util.CmdHandler(
117 dialogs.OpenDialogMsg{
118 Model: commands.NewCommandArgumentsDialog(
119 msg.CommandID,
120 msg.Content,
121 msg.ArgNames,
122 ),
123 },
124 )
125 // Page change messages
126 case page.PageChangeMsg:
127 return a, a.moveToPage(msg.ID)
128
129 // Status Messages
130 case util.InfoMsg, util.ClearStatusMsg:
131 s, statusCmd := a.status.Update(msg)
132 a.status = s.(status.StatusCmp)
133 cmds = append(cmds, statusCmd)
134 return a, tea.Batch(cmds...)
135
136 // Session
137 case cmpChat.SessionSelectedMsg:
138 a.selectedSessionID = msg.ID
139 case cmpChat.SessionClearedMsg:
140 a.selectedSessionID = ""
141 // Logs
142 case pubsub.Event[logging.LogMessage]:
143 // Send to the status component
144 s, statusCmd := a.status.Update(msg)
145 a.status = s.(status.StatusCmp)
146 cmds = append(cmds, statusCmd)
147
148 // If the current page is logs, update the logs view
149 if a.currentPage == logs.LogsPage {
150 updated, pageCmd := a.pages[a.currentPage].Update(msg)
151 a.pages[a.currentPage] = updated.(util.Model)
152 cmds = append(cmds, pageCmd)
153 }
154 return a, tea.Batch(cmds...)
155 // Commands
156 case commands.SwitchSessionsMsg:
157 return a, func() tea.Msg {
158 allSessions, _ := a.app.Sessions.List(context.Background())
159 return dialogs.OpenDialogMsg{
160 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
161 }
162 }
163
164 case commands.SwitchModelMsg:
165 return a, util.CmdHandler(
166 dialogs.OpenDialogMsg{
167 Model: models.NewModelDialogCmp(),
168 },
169 )
170 // Compact
171 case commands.CompactMsg:
172 return a, util.CmdHandler(dialogs.OpenDialogMsg{
173 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, msg.SessionID, true),
174 })
175
176 // Model Switch
177 case models.ModelSelectedMsg:
178 model, err := a.app.CoderAgent.Update(config.AgentCoder, msg.Model.ID)
179 if err != nil {
180 return a, util.ReportError(err)
181 }
182
183 return a, util.ReportInfo(fmt.Sprintf("Model changed to %s", model.Name))
184
185 // File Picker
186 case chat.OpenFilePickerMsg:
187 if a.dialog.ActiveDialogID() == filepicker.FilePickerID {
188 // If the commands dialog is already open, close it
189 return a, util.CmdHandler(dialogs.CloseDialogMsg{})
190 }
191 return a, util.CmdHandler(dialogs.OpenDialogMsg{
192 Model: filepicker.NewFilePickerCmp(),
193 })
194 // Permissions
195 case pubsub.Event[permission.PermissionRequest]:
196 return a, util.CmdHandler(dialogs.OpenDialogMsg{
197 Model: permissions.NewPermissionDialogCmp(msg.Payload),
198 })
199 case permissions.PermissionResponseMsg:
200 switch msg.Action {
201 case permissions.PermissionAllow:
202 a.app.Permissions.Grant(msg.Permission)
203 case permissions.PermissionAllowForSession:
204 a.app.Permissions.GrantPersistent(msg.Permission)
205 case permissions.PermissionDeny:
206 a.app.Permissions.Deny(msg.Permission)
207 }
208 return a, nil
209 // Agent Events
210 case pubsub.Event[agent.AgentEvent]:
211 payload := msg.Payload
212
213 // Forward agent events to dialogs
214 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() == compact.CompactDialogID {
215 u, dialogCmd := a.dialog.Update(payload)
216 a.dialog = u.(dialogs.DialogCmp)
217 cmds = append(cmds, dialogCmd)
218 }
219
220 // Handle auto-compact logic
221 if payload.Done && payload.Type == agent.AgentEventTypeResponse && a.selectedSessionID != "" {
222 // Get current session to check token usage
223 session, err := a.app.Sessions.Get(context.Background(), a.selectedSessionID)
224 if err == nil {
225 model := a.app.CoderAgent.Model()
226 contextWindow := model.ContextWindow
227 tokens := session.CompletionTokens + session.PromptTokens
228 if (tokens >= int64(float64(contextWindow)*0.95)) && config.Get().AutoCompact {
229 // Show compact confirmation dialog
230 cmds = append(cmds, util.CmdHandler(dialogs.OpenDialogMsg{
231 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, a.selectedSessionID, false),
232 }))
233 }
234 }
235 }
236
237 return a, tea.Batch(cmds...)
238 // Key Press Messages
239 case tea.KeyPressMsg:
240 return a, a.handleKeyPressMsg(msg)
241 }
242 s, _ := a.status.Update(msg)
243 a.status = s.(status.StatusCmp)
244 updated, cmd := a.pages[a.currentPage].Update(msg)
245 a.pages[a.currentPage] = updated.(util.Model)
246 if a.dialog.HasDialogs() {
247 u, dialogCmd := a.dialog.Update(msg)
248 a.dialog = u.(dialogs.DialogCmp)
249 cmds = append(cmds, dialogCmd)
250 }
251 cmds = append(cmds, cmd)
252 return a, tea.Batch(cmds...)
253}
254
255// handleWindowResize processes window resize events and updates all components.
256func (a *appModel) handleWindowResize(width, height int) tea.Cmd {
257 var cmds []tea.Cmd
258 a.wWidth, a.wHeight = width, height
259 if a.showingFullHelp {
260 height -= 4
261 } else {
262 height -= 2
263 }
264 a.width, a.height = width, height
265 // Update status bar
266 s, cmd := a.status.Update(tea.WindowSizeMsg{Width: width, Height: height})
267 a.status = s.(status.StatusCmp)
268 cmds = append(cmds, cmd)
269
270 // Update the current page
271 for p, page := range a.pages {
272 updated, pageCmd := page.Update(tea.WindowSizeMsg{Width: width, Height: height})
273 a.pages[p] = updated.(util.Model)
274 cmds = append(cmds, pageCmd)
275 }
276
277 // Update the dialogs
278 dialog, cmd := a.dialog.Update(tea.WindowSizeMsg{Width: width, Height: height})
279 a.dialog = dialog.(dialogs.DialogCmp)
280 cmds = append(cmds, cmd)
281
282 return tea.Batch(cmds...)
283}
284
285// handleKeyPressMsg processes keyboard input and routes to appropriate handlers.
286func (a *appModel) handleKeyPressMsg(msg tea.KeyPressMsg) tea.Cmd {
287 switch {
288 // completions
289 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Up):
290 u, cmd := a.completions.Update(msg)
291 a.completions = u.(completions.Completions)
292 return cmd
293
294 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Down):
295 u, cmd := a.completions.Update(msg)
296 a.completions = u.(completions.Completions)
297 return cmd
298 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Select):
299 u, cmd := a.completions.Update(msg)
300 a.completions = u.(completions.Completions)
301 return cmd
302 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Cancel):
303 u, cmd := a.completions.Update(msg)
304 a.completions = u.(completions.Completions)
305 return cmd
306 // help
307 case key.Matches(msg, a.keyMap.Help):
308 a.status.ToggleFullHelp()
309 a.showingFullHelp = !a.showingFullHelp
310 return a.handleWindowResize(a.wWidth, a.wHeight)
311 // dialogs
312 case key.Matches(msg, a.keyMap.Quit):
313 if a.dialog.ActiveDialogID() == quit.QuitDialogID {
314 // if the quit dialog is already open, close the app
315 return tea.Quit
316 }
317 return util.CmdHandler(dialogs.OpenDialogMsg{
318 Model: quit.NewQuitDialog(),
319 })
320
321 case key.Matches(msg, a.keyMap.Commands):
322 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
323 // If the commands dialog is already open, close it
324 return util.CmdHandler(dialogs.CloseDialogMsg{})
325 }
326 return util.CmdHandler(dialogs.OpenDialogMsg{
327 Model: commands.NewCommandDialog(a.selectedSessionID),
328 })
329 case key.Matches(msg, a.keyMap.Sessions):
330 if a.dialog.ActiveDialogID() == sessions.SessionsDialogID {
331 // If the sessions dialog is already open, close it
332 return util.CmdHandler(dialogs.CloseDialogMsg{})
333 }
334 var cmds []tea.Cmd
335 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
336 // If the commands dialog is open, close it first
337 cmds = append(cmds, util.CmdHandler(dialogs.CloseDialogMsg{}))
338 }
339 cmds = append(cmds,
340 func() tea.Msg {
341 allSessions, _ := a.app.Sessions.List(context.Background())
342 return dialogs.OpenDialogMsg{
343 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
344 }
345 },
346 )
347 return tea.Sequence(cmds...)
348 // Page navigation
349 case key.Matches(msg, a.keyMap.Logs):
350 return a.moveToPage(logs.LogsPage)
351
352 default:
353 if a.dialog.HasDialogs() {
354 u, dialogCmd := a.dialog.Update(msg)
355 a.dialog = u.(dialogs.DialogCmp)
356 return dialogCmd
357 } else {
358 updated, cmd := a.pages[a.currentPage].Update(msg)
359 a.pages[a.currentPage] = updated.(util.Model)
360 return cmd
361 }
362 }
363}
364
365// moveToPage handles navigation between different pages in the application.
366func (a *appModel) moveToPage(pageID page.PageID) tea.Cmd {
367 if a.app.CoderAgent.IsBusy() {
368 // TODO: maybe remove this : For now we don't move to any page if the agent is busy
369 return util.ReportWarn("Agent is busy, please wait...")
370 }
371
372 var cmds []tea.Cmd
373 if _, ok := a.loadedPages[pageID]; !ok {
374 cmd := a.pages[pageID].Init()
375 cmds = append(cmds, cmd)
376 a.loadedPages[pageID] = true
377 }
378 a.previousPage = a.currentPage
379 a.currentPage = pageID
380 if sizable, ok := a.pages[a.currentPage].(layout.Sizeable); ok {
381 cmd := sizable.SetSize(a.width, a.height)
382 cmds = append(cmds, cmd)
383 }
384
385 return tea.Batch(cmds...)
386}
387
388// View renders the complete application interface including pages, dialogs, and overlays.
389func (a *appModel) View() tea.View {
390 page := a.pages[a.currentPage]
391 if withHelp, ok := page.(layout.Help); ok {
392 a.keyMap.pageBindings = withHelp.Bindings()
393 }
394 a.status.SetKeyMap(a.keyMap)
395 pageView := page.View()
396 components := []string{
397 pageView,
398 }
399 components = append(components, a.status.View())
400
401 appView := lipgloss.JoinVertical(lipgloss.Top, components...)
402 layers := []*lipgloss.Layer{
403 lipgloss.NewLayer(appView),
404 }
405 if a.dialog.HasDialogs() {
406 layers = append(
407 layers,
408 a.dialog.GetLayers()...,
409 )
410 }
411
412 var cursor *tea.Cursor
413 if v, ok := page.(util.Cursor); ok {
414 cursor = v.Cursor()
415 }
416 activeView := a.dialog.ActiveModel()
417 if activeView != nil {
418 cursor = nil // Reset cursor if a dialog is active unless it implements util.Cursor
419 if v, ok := activeView.(util.Cursor); ok {
420 cursor = v.Cursor()
421 }
422 }
423
424 if a.completions.Open() && cursor != nil {
425 cmp := a.completions.View()
426 x, y := a.completions.Position()
427 layers = append(
428 layers,
429 lipgloss.NewLayer(cmp).X(x).Y(y),
430 )
431 }
432
433 canvas := lipgloss.NewCanvas(
434 layers...,
435 )
436
437 var view tea.View
438 t := styles.CurrentTheme()
439 view.Layer = canvas
440 view.BackgroundColor = t.BgBase
441 view.Cursor = cursor
442 return view
443}
444
445// New creates and initializes a new TUI application model.
446func New(app *app.App) tea.Model {
447 chatPage := chat.NewChatPage(app)
448 keyMap := DefaultKeyMap()
449 keyMap.pageBindings = chatPage.Bindings()
450
451 model := &appModel{
452 currentPage: chat.ChatPageID,
453 app: app,
454 status: status.NewStatusCmp(keyMap),
455 loadedPages: make(map[page.PageID]bool),
456 keyMap: keyMap,
457
458 pages: map[page.PageID]util.Model{
459 chat.ChatPageID: chatPage,
460 logs.LogsPage: logs.NewLogsPage(),
461 },
462
463 dialog: dialogs.NewDialogCmp(),
464 completions: completions.New(),
465 }
466
467 return model
468}