1package tui
2
3import (
4 "context"
5 "fmt"
6 "strings"
7 "time"
8
9 "github.com/charmbracelet/bubbles/v2/key"
10 tea "github.com/charmbracelet/bubbletea/v2"
11 "github.com/charmbracelet/crush/internal/app"
12 "github.com/charmbracelet/crush/internal/config"
13 "github.com/charmbracelet/crush/internal/event"
14 "github.com/charmbracelet/crush/internal/permission"
15 "github.com/charmbracelet/crush/internal/pubsub"
16 cmpChat "github.com/charmbracelet/crush/internal/tui/components/chat"
17 "github.com/charmbracelet/crush/internal/tui/components/chat/splash"
18 "github.com/charmbracelet/crush/internal/tui/components/completions"
19 "github.com/charmbracelet/crush/internal/tui/components/core"
20 "github.com/charmbracelet/crush/internal/tui/components/core/layout"
21 "github.com/charmbracelet/crush/internal/tui/components/core/status"
22 "github.com/charmbracelet/crush/internal/tui/components/dialogs"
23 "github.com/charmbracelet/crush/internal/tui/components/dialogs/commands"
24 "github.com/charmbracelet/crush/internal/tui/components/dialogs/filepicker"
25 "github.com/charmbracelet/crush/internal/tui/components/dialogs/models"
26 "github.com/charmbracelet/crush/internal/tui/components/dialogs/permissions"
27 "github.com/charmbracelet/crush/internal/tui/components/dialogs/quit"
28 "github.com/charmbracelet/crush/internal/tui/components/dialogs/sessions"
29 "github.com/charmbracelet/crush/internal/tui/page"
30 "github.com/charmbracelet/crush/internal/tui/page/chat"
31 "github.com/charmbracelet/crush/internal/tui/styles"
32 "github.com/charmbracelet/crush/internal/tui/util"
33 "github.com/charmbracelet/lipgloss/v2"
34)
35
36var lastMouseEvent time.Time
37
38func MouseEventFilter(m tea.Model, msg tea.Msg) tea.Msg {
39 switch msg.(type) {
40 case tea.MouseWheelMsg, tea.MouseMotionMsg:
41 now := time.Now()
42 // trackpad is sending too many requests
43 if now.Sub(lastMouseEvent) < 15*time.Millisecond {
44 return nil
45 }
46 lastMouseEvent = now
47 }
48 return msg
49}
50
51// appModel represents the main application model that manages pages, dialogs, and UI state.
52type appModel struct {
53 wWidth, wHeight int // Window dimensions
54 width, height int
55 keyMap KeyMap
56
57 currentPage page.PageID
58 previousPage page.PageID
59 pages map[page.PageID]util.Model
60 loadedPages map[page.PageID]bool
61
62 // Status
63 status status.StatusCmp
64 showingFullHelp bool
65
66 app *app.App
67
68 dialog dialogs.DialogCmp
69 completions completions.Completions
70 isConfigured bool
71
72 // Chat Page Specific
73 selectedSessionID string // The ID of the currently selected session
74}
75
76// Init initializes the application model and returns initial commands.
77func (a appModel) Init() tea.Cmd {
78 item, ok := a.pages[a.currentPage]
79 if !ok {
80 return nil
81 }
82
83 var cmds []tea.Cmd
84 cmd := item.Init()
85 cmds = append(cmds, cmd)
86 a.loadedPages[a.currentPage] = true
87
88 cmd = a.status.Init()
89 cmds = append(cmds, cmd)
90
91 cmds = append(cmds, tea.EnableMouseAllMotion)
92
93 return tea.Batch(cmds...)
94}
95
96// Update handles incoming messages and updates the application state.
97func (a *appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
98 var cmds []tea.Cmd
99 var cmd tea.Cmd
100 a.isConfigured = config.HasInitialDataConfig()
101
102 switch msg := msg.(type) {
103 case tea.KeyboardEnhancementsMsg:
104 for id, page := range a.pages {
105 m, pageCmd := page.Update(msg)
106 if model, ok := m.(util.Model); ok {
107 a.pages[id] = model
108 }
109
110 if pageCmd != nil {
111 cmds = append(cmds, pageCmd)
112 }
113 }
114 return a, tea.Batch(cmds...)
115 case tea.WindowSizeMsg:
116 a.wWidth, a.wHeight = msg.Width, msg.Height
117 a.completions.Update(msg)
118 return a, a.handleWindowResize(msg.Width, msg.Height)
119
120 // Completions messages
121 case completions.OpenCompletionsMsg, completions.FilterCompletionsMsg,
122 completions.CloseCompletionsMsg, completions.RepositionCompletionsMsg:
123 u, completionCmd := a.completions.Update(msg)
124 if model, ok := u.(completions.Completions); ok {
125 a.completions = model
126 }
127
128 return a, completionCmd
129
130 // Dialog messages
131 case dialogs.OpenDialogMsg, dialogs.CloseDialogMsg:
132 u, completionCmd := a.completions.Update(completions.CloseCompletionsMsg{})
133 a.completions = u.(completions.Completions)
134 u, dialogCmd := a.dialog.Update(msg)
135 a.dialog = u.(dialogs.DialogCmp)
136 return a, tea.Batch(completionCmd, dialogCmd)
137 case commands.ShowArgumentsDialogMsg:
138 return a, util.CmdHandler(
139 dialogs.OpenDialogMsg{
140 Model: commands.NewCommandArgumentsDialog(
141 msg.CommandID,
142 msg.Content,
143 msg.ArgNames,
144 ),
145 },
146 )
147 // Page change messages
148 case page.PageChangeMsg:
149 return a, a.moveToPage(msg.ID)
150
151 // Status Messages
152 case util.InfoMsg, util.ClearStatusMsg:
153 s, statusCmd := a.status.Update(msg)
154 a.status = s.(status.StatusCmp)
155 cmds = append(cmds, statusCmd)
156 return a, tea.Batch(cmds...)
157
158 // Session
159 case cmpChat.SessionSelectedMsg:
160 a.selectedSessionID = msg.ID
161 case cmpChat.SessionClearedMsg:
162 a.selectedSessionID = ""
163 // Commands
164 case commands.SwitchSessionsMsg:
165 return a, func() tea.Msg {
166 allSessions, _ := a.app.Sessions.List(context.Background())
167 return dialogs.OpenDialogMsg{
168 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
169 }
170 }
171
172 case commands.SwitchModelMsg:
173 return a, util.CmdHandler(
174 dialogs.OpenDialogMsg{
175 Model: models.NewModelDialogCmp(),
176 },
177 )
178 // Compact
179 case commands.CompactMsg:
180 return a, func() tea.Msg {
181 err := a.app.AgentCoordinator.Summarize(context.Background(), msg.SessionID)
182 if err != nil {
183 return util.ReportError(err)()
184 }
185 return nil
186 }
187 case commands.QuitMsg:
188 return a, util.CmdHandler(dialogs.OpenDialogMsg{
189 Model: quit.NewQuitDialog(),
190 })
191 case commands.ToggleYoloModeMsg:
192 a.app.Permissions.SetSkipRequests(!a.app.Permissions.SkipRequests())
193 case commands.ToggleHelpMsg:
194 a.status.ToggleFullHelp()
195 a.showingFullHelp = !a.showingFullHelp
196 return a, a.handleWindowResize(a.wWidth, a.wHeight)
197 // Model Switch
198 case models.ModelSelectedMsg:
199 if a.app.AgentCoordinator.IsBusy() {
200 return a, util.ReportWarn("Agent is busy, please wait...")
201 }
202
203 config.Get().UpdatePreferredModel(msg.ModelType, msg.Model)
204
205 // Update the agent with the new model/provider configuration
206 if err := a.app.UpdateAgentModel(); err != nil {
207 return a, util.ReportError(fmt.Errorf("model changed to %s but failed to update agent: %v", msg.Model.Model, err))
208 }
209
210 modelTypeName := "large"
211 if msg.ModelType == config.SelectedModelTypeSmall {
212 modelTypeName = "small"
213 }
214 return a, util.ReportInfo(fmt.Sprintf("%s model changed to %s", modelTypeName, msg.Model.Model))
215
216 // File Picker
217 case commands.OpenFilePickerMsg:
218 event.FilePickerOpened()
219
220 if a.dialog.ActiveDialogID() == filepicker.FilePickerID {
221 // If the commands dialog is already open, close it
222 return a, util.CmdHandler(dialogs.CloseDialogMsg{})
223 }
224 return a, util.CmdHandler(dialogs.OpenDialogMsg{
225 Model: filepicker.NewFilePickerCmp(a.app.Config().WorkingDir()),
226 })
227 // Permissions
228 case pubsub.Event[permission.PermissionNotification]:
229 item, ok := a.pages[a.currentPage]
230 if !ok {
231 return a, nil
232 }
233
234 // Forward to view.
235 updated, itemCmd := item.Update(msg)
236 if model, ok := updated.(util.Model); ok {
237 a.pages[a.currentPage] = model
238 }
239
240 return a, itemCmd
241 case pubsub.Event[permission.PermissionRequest]:
242 return a, util.CmdHandler(dialogs.OpenDialogMsg{
243 Model: permissions.NewPermissionDialogCmp(msg.Payload, &permissions.Options{
244 DiffMode: config.Get().Options.TUI.DiffMode,
245 }),
246 })
247 case permissions.PermissionResponseMsg:
248 switch msg.Action {
249 case permissions.PermissionAllow:
250 a.app.Permissions.Grant(msg.Permission)
251 case permissions.PermissionAllowForSession:
252 a.app.Permissions.GrantPersistent(msg.Permission)
253 case permissions.PermissionDeny:
254 a.app.Permissions.Deny(msg.Permission)
255 }
256 return a, nil
257 case splash.OnboardingCompleteMsg:
258 item, ok := a.pages[a.currentPage]
259 if !ok {
260 return a, nil
261 }
262
263 a.isConfigured = config.HasInitialDataConfig()
264 updated, pageCmd := item.Update(msg)
265 if model, ok := updated.(util.Model); ok {
266 a.pages[a.currentPage] = model
267 }
268
269 cmds = append(cmds, pageCmd)
270 return a, tea.Batch(cmds...)
271
272 case tea.KeyPressMsg:
273 return a, a.handleKeyPressMsg(msg)
274
275 case tea.MouseWheelMsg:
276 if a.dialog.HasDialogs() {
277 u, dialogCmd := a.dialog.Update(msg)
278 a.dialog = u.(dialogs.DialogCmp)
279 cmds = append(cmds, dialogCmd)
280 } else {
281 item, ok := a.pages[a.currentPage]
282 if !ok {
283 return a, nil
284 }
285
286 updated, pageCmd := item.Update(msg)
287 if model, ok := updated.(util.Model); ok {
288 a.pages[a.currentPage] = model
289 }
290
291 cmds = append(cmds, pageCmd)
292 }
293 return a, tea.Batch(cmds...)
294 case tea.PasteMsg:
295 if a.dialog.HasDialogs() {
296 u, dialogCmd := a.dialog.Update(msg)
297 if model, ok := u.(dialogs.DialogCmp); ok {
298 a.dialog = model
299 }
300
301 cmds = append(cmds, dialogCmd)
302 } else {
303 item, ok := a.pages[a.currentPage]
304 if !ok {
305 return a, nil
306 }
307
308 updated, pageCmd := item.Update(msg)
309 if model, ok := updated.(util.Model); ok {
310 a.pages[a.currentPage] = model
311 }
312
313 cmds = append(cmds, pageCmd)
314 }
315 return a, tea.Batch(cmds...)
316 }
317 s, _ := a.status.Update(msg)
318 a.status = s.(status.StatusCmp)
319
320 item, ok := a.pages[a.currentPage]
321 if !ok {
322 return a, nil
323 }
324
325 updated, cmd := item.Update(msg)
326 if model, ok := updated.(util.Model); ok {
327 a.pages[a.currentPage] = model
328 }
329
330 if a.dialog.HasDialogs() {
331 u, dialogCmd := a.dialog.Update(msg)
332 if model, ok := u.(dialogs.DialogCmp); ok {
333 a.dialog = model
334 }
335
336 cmds = append(cmds, dialogCmd)
337 }
338 cmds = append(cmds, cmd)
339 return a, tea.Batch(cmds...)
340}
341
342// handleWindowResize processes window resize events and updates all components.
343func (a *appModel) handleWindowResize(width, height int) tea.Cmd {
344 var cmds []tea.Cmd
345
346 // TODO: clean up these magic numbers.
347 if a.showingFullHelp {
348 height -= 5
349 } else {
350 height -= 2
351 }
352
353 a.width, a.height = width, height
354 // Update status bar
355 s, cmd := a.status.Update(tea.WindowSizeMsg{Width: width, Height: height})
356 if model, ok := s.(status.StatusCmp); ok {
357 a.status = model
358 }
359 cmds = append(cmds, cmd)
360
361 // Update the current view.
362 for p, page := range a.pages {
363 updated, pageCmd := page.Update(tea.WindowSizeMsg{Width: width, Height: height})
364 if model, ok := updated.(util.Model); ok {
365 a.pages[p] = model
366 }
367
368 cmds = append(cmds, pageCmd)
369 }
370
371 // Update the dialogs
372 dialog, cmd := a.dialog.Update(tea.WindowSizeMsg{Width: width, Height: height})
373 if model, ok := dialog.(dialogs.DialogCmp); ok {
374 a.dialog = model
375 }
376
377 cmds = append(cmds, cmd)
378
379 return tea.Batch(cmds...)
380}
381
382// handleKeyPressMsg processes keyboard input and routes to appropriate handlers.
383func (a *appModel) handleKeyPressMsg(msg tea.KeyPressMsg) tea.Cmd {
384 // Check this first as the user should be able to quit no matter what.
385 if key.Matches(msg, a.keyMap.Quit) {
386 if a.dialog.ActiveDialogID() == quit.QuitDialogID {
387 return tea.Quit
388 }
389 return util.CmdHandler(dialogs.OpenDialogMsg{
390 Model: quit.NewQuitDialog(),
391 })
392 }
393
394 if a.completions.Open() {
395 // completions
396 keyMap := a.completions.KeyMap()
397 switch {
398 case key.Matches(msg, keyMap.Up), key.Matches(msg, keyMap.Down),
399 key.Matches(msg, keyMap.Select), key.Matches(msg, keyMap.Cancel),
400 key.Matches(msg, keyMap.UpInsert), key.Matches(msg, keyMap.DownInsert):
401 u, cmd := a.completions.Update(msg)
402 a.completions = u.(completions.Completions)
403 return cmd
404 }
405 }
406 if a.dialog.HasDialogs() {
407 u, dialogCmd := a.dialog.Update(msg)
408 a.dialog = u.(dialogs.DialogCmp)
409 return dialogCmd
410 }
411 switch {
412 // help
413 case key.Matches(msg, a.keyMap.Help):
414 a.status.ToggleFullHelp()
415 a.showingFullHelp = !a.showingFullHelp
416 return a.handleWindowResize(a.wWidth, a.wHeight)
417 // dialogs
418 case key.Matches(msg, a.keyMap.Commands):
419 // if the app is not configured show no commands
420 if !a.isConfigured {
421 return nil
422 }
423 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
424 return util.CmdHandler(dialogs.CloseDialogMsg{})
425 }
426 if a.dialog.HasDialogs() {
427 return nil
428 }
429 return util.CmdHandler(dialogs.OpenDialogMsg{
430 Model: commands.NewCommandDialog(a.selectedSessionID),
431 })
432 case key.Matches(msg, a.keyMap.Sessions):
433 // if the app is not configured show no sessions
434 if !a.isConfigured {
435 return nil
436 }
437 if a.dialog.ActiveDialogID() == sessions.SessionsDialogID {
438 return util.CmdHandler(dialogs.CloseDialogMsg{})
439 }
440 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() != commands.CommandsDialogID {
441 return nil
442 }
443 var cmds []tea.Cmd
444 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
445 // If the commands dialog is open, close it first
446 cmds = append(cmds, util.CmdHandler(dialogs.CloseDialogMsg{}))
447 }
448 cmds = append(cmds,
449 func() tea.Msg {
450 allSessions, _ := a.app.Sessions.List(context.Background())
451 return dialogs.OpenDialogMsg{
452 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
453 }
454 },
455 )
456 return tea.Sequence(cmds...)
457 case key.Matches(msg, a.keyMap.Suspend):
458 if a.app.AgentCoordinator != nil && a.app.AgentCoordinator.IsBusy() {
459 return util.ReportWarn("Agent is busy, please wait...")
460 }
461 return tea.Suspend
462 default:
463 item, ok := a.pages[a.currentPage]
464 if !ok {
465 return nil
466 }
467
468 updated, cmd := item.Update(msg)
469 if model, ok := updated.(util.Model); ok {
470 a.pages[a.currentPage] = model
471 }
472 return cmd
473 }
474}
475
476// moveToPage handles navigation between different pages in the application.
477func (a *appModel) moveToPage(pageID page.PageID) tea.Cmd {
478 if a.app.AgentCoordinator.IsBusy() {
479 // TODO: maybe remove this : For now we don't move to any page if the agent is busy
480 return util.ReportWarn("Agent is busy, please wait...")
481 }
482
483 var cmds []tea.Cmd
484 if _, ok := a.loadedPages[pageID]; !ok {
485 cmd := a.pages[pageID].Init()
486 cmds = append(cmds, cmd)
487 a.loadedPages[pageID] = true
488 }
489 a.previousPage = a.currentPage
490 a.currentPage = pageID
491 if sizable, ok := a.pages[a.currentPage].(layout.Sizeable); ok {
492 cmd := sizable.SetSize(a.width, a.height)
493 cmds = append(cmds, cmd)
494 }
495
496 return tea.Batch(cmds...)
497}
498
499// View renders the complete application interface including pages, dialogs, and overlays.
500func (a *appModel) View() tea.View {
501 var view tea.View
502 t := styles.CurrentTheme()
503 view.BackgroundColor = t.BgBase
504 if a.wWidth < 25 || a.wHeight < 15 {
505 view.Layer = lipgloss.NewCanvas(
506 lipgloss.NewLayer(
507 t.S().Base.Width(a.wWidth).Height(a.wHeight).
508 Align(lipgloss.Center, lipgloss.Center).
509 Render(
510 t.S().Base.
511 Padding(1, 4).
512 Foreground(t.White).
513 BorderStyle(lipgloss.RoundedBorder()).
514 BorderForeground(t.Primary).
515 Render("Window too small!"),
516 ),
517 ),
518 )
519 return view
520 }
521
522 page := a.pages[a.currentPage]
523 if withHelp, ok := page.(core.KeyMapHelp); ok {
524 a.status.SetKeyMap(withHelp.Help())
525 }
526 pageView := page.View()
527 components := []string{
528 pageView,
529 }
530 components = append(components, a.status.View())
531
532 appView := lipgloss.JoinVertical(lipgloss.Top, components...)
533 layers := []*lipgloss.Layer{
534 lipgloss.NewLayer(appView),
535 }
536 if a.dialog.HasDialogs() {
537 layers = append(
538 layers,
539 a.dialog.GetLayers()...,
540 )
541 }
542
543 var cursor *tea.Cursor
544 if v, ok := page.(util.Cursor); ok {
545 cursor = v.Cursor()
546 // Hide the cursor if it's positioned outside the textarea
547 statusHeight := a.height - strings.Count(pageView, "\n") + 1
548 if cursor != nil && cursor.Y+statusHeight+chat.EditorHeight-2 <= a.height { // 2 for the top and bottom app padding
549 cursor = nil
550 }
551 }
552 activeView := a.dialog.ActiveModel()
553 if activeView != nil {
554 cursor = nil // Reset cursor if a dialog is active unless it implements util.Cursor
555 if v, ok := activeView.(util.Cursor); ok {
556 cursor = v.Cursor()
557 }
558 }
559
560 if a.completions.Open() && cursor != nil {
561 cmp := a.completions.View()
562 x, y := a.completions.Position()
563 layers = append(
564 layers,
565 lipgloss.NewLayer(cmp).X(x).Y(y),
566 )
567 }
568
569 canvas := lipgloss.NewCanvas(
570 layers...,
571 )
572
573 view.Layer = canvas
574 view.Cursor = cursor
575 return view
576}
577
578// New creates and initializes a new TUI application model.
579func New(app *app.App) tea.Model {
580 chatPage := chat.New(app)
581 keyMap := DefaultKeyMap()
582 keyMap.pageBindings = chatPage.Bindings()
583
584 model := &appModel{
585 currentPage: chat.ChatPageID,
586 app: app,
587 status: status.NewStatusCmp(),
588 loadedPages: make(map[page.PageID]bool),
589 keyMap: keyMap,
590
591 pages: map[page.PageID]util.Model{
592 chat.ChatPageID: chatPage,
593 },
594
595 dialog: dialogs.NewDialogCmp(),
596 completions: completions.New(),
597 }
598
599 return model
600}