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/llm/agent"
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/compact"
25 "github.com/charmbracelet/crush/internal/tui/components/dialogs/filepicker"
26 "github.com/charmbracelet/crush/internal/tui/components/dialogs/models"
27 "github.com/charmbracelet/crush/internal/tui/components/dialogs/permissions"
28 "github.com/charmbracelet/crush/internal/tui/components/dialogs/quit"
29 "github.com/charmbracelet/crush/internal/tui/components/dialogs/sessions"
30 "github.com/charmbracelet/crush/internal/tui/page"
31 "github.com/charmbracelet/crush/internal/tui/page/chat"
32 "github.com/charmbracelet/crush/internal/tui/styles"
33 "github.com/charmbracelet/crush/internal/tui/util"
34 "github.com/charmbracelet/lipgloss/v2"
35)
36
37var lastMouseEvent time.Time
38
39func MouseEventFilter(m tea.Model, msg tea.Msg) tea.Msg {
40 switch msg.(type) {
41 case tea.MouseWheelMsg, tea.MouseMotionMsg:
42 now := time.Now()
43 // trackpad is sending too many requests
44 if now.Sub(lastMouseEvent) < 15*time.Millisecond {
45 return nil
46 }
47 lastMouseEvent = now
48 }
49 return msg
50}
51
52// appModel represents the main application model that manages pages, dialogs, and UI state.
53type appModel struct {
54 wWidth, wHeight int // Window dimensions
55 width, height int
56 keyMap KeyMap
57
58 currentPage page.PageID
59 previousPage page.PageID
60 pages map[page.PageID]util.Model
61 loadedPages map[page.PageID]bool
62
63 // Status
64 status status.StatusCmp
65 showingFullHelp bool
66
67 app *app.App
68
69 dialog dialogs.DialogCmp
70 completions completions.Completions
71 isConfigured bool
72
73 // Chat Page Specific
74 selectedSessionID string // The ID of the currently selected session
75}
76
77// Init initializes the application model and returns initial commands.
78func (a appModel) Init() tea.Cmd {
79 var cmds []tea.Cmd
80 cmd := a.pages[a.currentPage].Init()
81 cmds = append(cmds, cmd)
82 a.loadedPages[a.currentPage] = true
83
84 cmd = a.status.Init()
85 cmds = append(cmds, cmd)
86
87 cmds = append(cmds, tea.EnableMouseAllMotion)
88
89 return tea.Batch(cmds...)
90}
91
92// Update handles incoming messages and updates the application state.
93func (a *appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
94 var cmds []tea.Cmd
95 var cmd tea.Cmd
96 a.isConfigured = config.HasInitialDataConfig()
97
98 switch msg := msg.(type) {
99 case tea.KeyboardEnhancementsMsg:
100 for id, page := range a.pages {
101 m, pageCmd := page.Update(msg)
102 a.pages[id] = m.(util.Model)
103 if pageCmd != nil {
104 cmds = append(cmds, pageCmd)
105 }
106 }
107 return a, tea.Batch(cmds...)
108 case tea.WindowSizeMsg:
109 a.wWidth, a.wHeight = msg.Width, msg.Height
110 a.completions.Update(msg)
111 return a, a.handleWindowResize(msg.Width, msg.Height)
112
113 // Completions messages
114 case completions.OpenCompletionsMsg, completions.FilterCompletionsMsg,
115 completions.CloseCompletionsMsg, completions.RepositionCompletionsMsg:
116 u, completionCmd := a.completions.Update(msg)
117 a.completions = u.(completions.Completions)
118 return a, completionCmd
119
120 // Dialog messages
121 case dialogs.OpenDialogMsg, dialogs.CloseDialogMsg:
122 u, completionCmd := a.completions.Update(completions.CloseCompletionsMsg{})
123 a.completions = u.(completions.Completions)
124 u, dialogCmd := a.dialog.Update(msg)
125 a.dialog = u.(dialogs.DialogCmp)
126 return a, tea.Batch(completionCmd, dialogCmd)
127 case commands.ShowArgumentsDialogMsg:
128 return a, util.CmdHandler(
129 dialogs.OpenDialogMsg{
130 Model: commands.NewCommandArgumentsDialog(
131 msg.CommandID,
132 msg.Content,
133 msg.ArgNames,
134 ),
135 },
136 )
137 // Page change messages
138 case page.PageChangeMsg:
139 return a, a.moveToPage(msg.ID)
140
141 // Status Messages
142 case util.InfoMsg, util.ClearStatusMsg:
143 s, statusCmd := a.status.Update(msg)
144 a.status = s.(status.StatusCmp)
145 cmds = append(cmds, statusCmd)
146 return a, tea.Batch(cmds...)
147
148 // Session
149 case cmpChat.SessionSelectedMsg:
150 a.selectedSessionID = msg.ID
151 case cmpChat.SessionClearedMsg:
152 a.selectedSessionID = ""
153 // Commands
154 case commands.SwitchSessionsMsg:
155 return a, func() tea.Msg {
156 allSessions, _ := a.app.Sessions.List(context.Background())
157 return dialogs.OpenDialogMsg{
158 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
159 }
160 }
161
162 case commands.SwitchModelMsg:
163 return a, util.CmdHandler(
164 dialogs.OpenDialogMsg{
165 Model: models.NewModelDialogCmp(),
166 },
167 )
168 // Compact
169 case commands.CompactMsg:
170 return a, util.CmdHandler(dialogs.OpenDialogMsg{
171 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, msg.SessionID, true),
172 })
173 case commands.QuitMsg:
174 return a, util.CmdHandler(dialogs.OpenDialogMsg{
175 Model: quit.NewQuitDialog(),
176 })
177 case commands.ToggleYoloModeMsg:
178 a.app.Permissions.SetSkipRequests(!a.app.Permissions.SkipRequests())
179 case commands.ToggleHelpMsg:
180 a.status.ToggleFullHelp()
181 a.showingFullHelp = !a.showingFullHelp
182 return a, a.handleWindowResize(a.wWidth, a.wHeight)
183 // Model Switch
184 case models.ModelSelectedMsg:
185 if a.app.CoderAgent.IsBusy() {
186 return a, util.ReportWarn("Agent is busy, please wait...")
187 }
188 config.Get().UpdatePreferredModel(msg.ModelType, msg.Model)
189
190 // Update the agent with the new model/provider configuration
191 if err := a.app.UpdateAgentModel(); err != nil {
192 return a, util.ReportError(fmt.Errorf("model changed to %s but failed to update agent: %v", msg.Model.Model, err))
193 }
194
195 modelTypeName := "large"
196 if msg.ModelType == config.SelectedModelTypeSmall {
197 modelTypeName = "small"
198 }
199 return a, util.ReportInfo(fmt.Sprintf("%s model changed to %s", modelTypeName, msg.Model.Model))
200
201 // File Picker
202 case commands.OpenFilePickerMsg:
203 if a.dialog.ActiveDialogID() == filepicker.FilePickerID {
204 // If the commands dialog is already open, close it
205 return a, util.CmdHandler(dialogs.CloseDialogMsg{})
206 }
207 return a, util.CmdHandler(dialogs.OpenDialogMsg{
208 Model: filepicker.NewFilePickerCmp(a.app.Config().WorkingDir()),
209 })
210 // Permissions
211 case pubsub.Event[permission.PermissionNotification]:
212 // forward to page
213 updated, cmd := a.pages[a.currentPage].Update(msg)
214 a.pages[a.currentPage] = updated.(util.Model)
215 return a, cmd
216 case pubsub.Event[permission.PermissionRequest]:
217 return a, util.CmdHandler(dialogs.OpenDialogMsg{
218 Model: permissions.NewPermissionDialogCmp(msg.Payload, &permissions.Options{
219 DiffMode: config.Get().Options.TUI.DiffMode,
220 }),
221 })
222 case permissions.PermissionResponseMsg:
223 switch msg.Action {
224 case permissions.PermissionAllow:
225 a.app.Permissions.Grant(msg.Permission)
226 case permissions.PermissionAllowForSession:
227 a.app.Permissions.GrantPersistent(msg.Permission)
228 case permissions.PermissionDeny:
229 a.app.Permissions.Deny(msg.Permission)
230 }
231 return a, nil
232 // Agent Events
233 case pubsub.Event[agent.AgentEvent]:
234 payload := msg.Payload
235
236 // Forward agent events to dialogs
237 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() == compact.CompactDialogID {
238 u, dialogCmd := a.dialog.Update(payload)
239 a.dialog = u.(dialogs.DialogCmp)
240 cmds = append(cmds, dialogCmd)
241 }
242
243 // Handle auto-compact logic
244 if payload.Done && payload.Type == agent.AgentEventTypeResponse && a.selectedSessionID != "" {
245 // Get current session to check token usage
246 session, err := a.app.Sessions.Get(context.Background(), a.selectedSessionID)
247 if err == nil {
248 model := a.app.CoderAgent.Model()
249 contextWindow := model.ContextWindow
250 tokens := session.CompletionTokens + session.PromptTokens
251 if (tokens >= int64(float64(contextWindow)*0.95)) && !config.Get().Options.DisableAutoSummarize { // Show compact confirmation dialog
252 cmds = append(cmds, util.CmdHandler(dialogs.OpenDialogMsg{
253 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, a.selectedSessionID, false),
254 }))
255 }
256 }
257 }
258
259 return a, tea.Batch(cmds...)
260 case splash.OnboardingCompleteMsg:
261 a.isConfigured = config.HasInitialDataConfig()
262 updated, pageCmd := a.pages[a.currentPage].Update(msg)
263 a.pages[a.currentPage] = updated.(util.Model)
264 cmds = append(cmds, pageCmd)
265 return a, tea.Batch(cmds...)
266 // Key Press Messages
267 case tea.KeyPressMsg:
268 return a, a.handleKeyPressMsg(msg)
269
270 case tea.MouseWheelMsg:
271 if a.dialog.HasDialogs() {
272 u, dialogCmd := a.dialog.Update(msg)
273 a.dialog = u.(dialogs.DialogCmp)
274 cmds = append(cmds, dialogCmd)
275 } else {
276 updated, pageCmd := a.pages[a.currentPage].Update(msg)
277 a.pages[a.currentPage] = updated.(util.Model)
278 cmds = append(cmds, pageCmd)
279 }
280 return a, tea.Batch(cmds...)
281 case tea.PasteMsg:
282 if a.dialog.HasDialogs() {
283 u, dialogCmd := a.dialog.Update(msg)
284 a.dialog = u.(dialogs.DialogCmp)
285 cmds = append(cmds, dialogCmd)
286 } else {
287 updated, pageCmd := a.pages[a.currentPage].Update(msg)
288 a.pages[a.currentPage] = updated.(util.Model)
289 cmds = append(cmds, pageCmd)
290 }
291 return a, tea.Batch(cmds...)
292 }
293 s, _ := a.status.Update(msg)
294 a.status = s.(status.StatusCmp)
295 updated, cmd := a.pages[a.currentPage].Update(msg)
296 a.pages[a.currentPage] = updated.(util.Model)
297 if a.dialog.HasDialogs() {
298 u, dialogCmd := a.dialog.Update(msg)
299 a.dialog = u.(dialogs.DialogCmp)
300 cmds = append(cmds, dialogCmd)
301 }
302 cmds = append(cmds, cmd)
303 return a, tea.Batch(cmds...)
304}
305
306// handleWindowResize processes window resize events and updates all components.
307func (a *appModel) handleWindowResize(width, height int) tea.Cmd {
308 var cmds []tea.Cmd
309 if a.showingFullHelp {
310 height -= 5
311 } else {
312 height -= 2
313 }
314 a.width, a.height = width, height
315 // Update status bar
316 s, cmd := a.status.Update(tea.WindowSizeMsg{Width: width, Height: height})
317 a.status = s.(status.StatusCmp)
318 cmds = append(cmds, cmd)
319
320 // Update the current page
321 for p, page := range a.pages {
322 updated, pageCmd := page.Update(tea.WindowSizeMsg{Width: width, Height: height})
323 a.pages[p] = updated.(util.Model)
324 cmds = append(cmds, pageCmd)
325 }
326
327 // Update the dialogs
328 dialog, cmd := a.dialog.Update(tea.WindowSizeMsg{Width: width, Height: height})
329 a.dialog = dialog.(dialogs.DialogCmp)
330 cmds = append(cmds, cmd)
331
332 return tea.Batch(cmds...)
333}
334
335// handleKeyPressMsg processes keyboard input and routes to appropriate handlers.
336func (a *appModel) handleKeyPressMsg(msg tea.KeyPressMsg) tea.Cmd {
337 if a.completions.Open() {
338 // completions
339 keyMap := a.completions.KeyMap()
340 switch {
341 case key.Matches(msg, keyMap.Up), key.Matches(msg, keyMap.Down),
342 key.Matches(msg, keyMap.Select), key.Matches(msg, keyMap.Cancel),
343 key.Matches(msg, keyMap.UpInsert), key.Matches(msg, keyMap.DownInsert):
344 u, cmd := a.completions.Update(msg)
345 a.completions = u.(completions.Completions)
346 return cmd
347 }
348 }
349 switch {
350 // help
351 case key.Matches(msg, a.keyMap.Help):
352 a.status.ToggleFullHelp()
353 a.showingFullHelp = !a.showingFullHelp
354 return a.handleWindowResize(a.wWidth, a.wHeight)
355 // dialogs
356 case key.Matches(msg, a.keyMap.Quit):
357 if a.dialog.ActiveDialogID() == quit.QuitDialogID {
358 return tea.Quit
359 }
360 return util.CmdHandler(dialogs.OpenDialogMsg{
361 Model: quit.NewQuitDialog(),
362 })
363
364 case key.Matches(msg, a.keyMap.Commands):
365 // if the app is not configured show no commands
366 if !a.isConfigured {
367 return nil
368 }
369 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
370 return util.CmdHandler(dialogs.CloseDialogMsg{})
371 }
372 if a.dialog.HasDialogs() {
373 return nil
374 }
375 return util.CmdHandler(dialogs.OpenDialogMsg{
376 Model: commands.NewCommandDialog(a.selectedSessionID),
377 })
378 case key.Matches(msg, a.keyMap.Sessions):
379 // if the app is not configured show no sessions
380 if !a.isConfigured {
381 return nil
382 }
383 if a.dialog.ActiveDialogID() == sessions.SessionsDialogID {
384 return util.CmdHandler(dialogs.CloseDialogMsg{})
385 }
386 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() != commands.CommandsDialogID {
387 return nil
388 }
389 var cmds []tea.Cmd
390 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
391 // If the commands dialog is open, close it first
392 cmds = append(cmds, util.CmdHandler(dialogs.CloseDialogMsg{}))
393 }
394 cmds = append(cmds,
395 func() tea.Msg {
396 allSessions, _ := a.app.Sessions.List(context.Background())
397 return dialogs.OpenDialogMsg{
398 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
399 }
400 },
401 )
402 return tea.Sequence(cmds...)
403 case key.Matches(msg, a.keyMap.Suspend):
404 if a.app.CoderAgent != nil && a.app.CoderAgent.IsBusy() {
405 return util.ReportWarn("Agent is busy, please wait...")
406 }
407 return tea.Suspend
408 default:
409 if a.dialog.HasDialogs() {
410 u, dialogCmd := a.dialog.Update(msg)
411 a.dialog = u.(dialogs.DialogCmp)
412 return dialogCmd
413 } else {
414 updated, cmd := a.pages[a.currentPage].Update(msg)
415 a.pages[a.currentPage] = updated.(util.Model)
416 return cmd
417 }
418 }
419}
420
421// moveToPage handles navigation between different pages in the application.
422func (a *appModel) moveToPage(pageID page.PageID) tea.Cmd {
423 if a.app.CoderAgent.IsBusy() {
424 // TODO: maybe remove this : For now we don't move to any page if the agent is busy
425 return util.ReportWarn("Agent is busy, please wait...")
426 }
427
428 var cmds []tea.Cmd
429 if _, ok := a.loadedPages[pageID]; !ok {
430 cmd := a.pages[pageID].Init()
431 cmds = append(cmds, cmd)
432 a.loadedPages[pageID] = true
433 }
434 a.previousPage = a.currentPage
435 a.currentPage = pageID
436 if sizable, ok := a.pages[a.currentPage].(layout.Sizeable); ok {
437 cmd := sizable.SetSize(a.width, a.height)
438 cmds = append(cmds, cmd)
439 }
440
441 return tea.Batch(cmds...)
442}
443
444// View renders the complete application interface including pages, dialogs, and overlays.
445func (a *appModel) View() tea.View {
446 var view tea.View
447 t := styles.CurrentTheme()
448 view.BackgroundColor = t.BgBase
449 if a.wWidth < 25 || a.wHeight < 15 {
450 view.Layer = lipgloss.NewCanvas(
451 lipgloss.NewLayer(
452 t.S().Base.Width(a.wWidth).Height(a.wHeight).
453 Align(lipgloss.Center, lipgloss.Center).
454 Render(
455 t.S().Base.
456 Padding(1, 4).
457 Foreground(t.White).
458 BorderStyle(lipgloss.RoundedBorder()).
459 BorderForeground(t.Primary).
460 Render("Window too small!"),
461 ),
462 ),
463 )
464 return view
465 }
466
467 page := a.pages[a.currentPage]
468 if withHelp, ok := page.(core.KeyMapHelp); ok {
469 a.status.SetKeyMap(withHelp.Help())
470 }
471 pageView := page.View()
472 components := []string{
473 pageView,
474 }
475 components = append(components, a.status.View())
476
477 appView := lipgloss.JoinVertical(lipgloss.Top, components...)
478 layers := []*lipgloss.Layer{
479 lipgloss.NewLayer(appView),
480 }
481 if a.dialog.HasDialogs() {
482 layers = append(
483 layers,
484 a.dialog.GetLayers()...,
485 )
486 }
487
488 var cursor *tea.Cursor
489 if v, ok := page.(util.Cursor); ok {
490 cursor = v.Cursor()
491 // Hide the cursor if it's positioned outside the textarea
492 statusHeight := a.height - strings.Count(pageView, "\n") + 1
493 if cursor != nil && cursor.Y+statusHeight+chat.EditorHeight-2 <= a.height { // 2 for the top and bottom app padding
494 cursor = nil
495 }
496 }
497 activeView := a.dialog.ActiveModel()
498 if activeView != nil {
499 cursor = nil // Reset cursor if a dialog is active unless it implements util.Cursor
500 if v, ok := activeView.(util.Cursor); ok {
501 cursor = v.Cursor()
502 }
503 }
504
505 if a.completions.Open() && cursor != nil {
506 cmp := a.completions.View()
507 x, y := a.completions.Position()
508 layers = append(
509 layers,
510 lipgloss.NewLayer(cmp).X(x).Y(y),
511 )
512 }
513
514 canvas := lipgloss.NewCanvas(
515 layers...,
516 )
517
518 view.Layer = canvas
519 view.Cursor = cursor
520 return view
521}
522
523// New creates and initializes a new TUI application model.
524func New(app *app.App) tea.Model {
525 chatPage := chat.New(app)
526 keyMap := DefaultKeyMap()
527 keyMap.pageBindings = chatPage.Bindings()
528
529 model := &appModel{
530 currentPage: chat.ChatPageID,
531 app: app,
532 status: status.NewStatusCmp(),
533 loadedPages: make(map[page.PageID]bool),
534 keyMap: keyMap,
535
536 pages: map[page.PageID]util.Model{
537 chat.ChatPageID: chatPage,
538 },
539
540 dialog: dialogs.NewDialogCmp(),
541 completions: completions.New(),
542 }
543
544 return model
545}