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