1package tui
2
3import (
4 "context"
5 "fmt"
6 "strings"
7
8 "github.com/charmbracelet/bubbles/v2/key"
9 tea "github.com/charmbracelet/bubbletea/v2"
10 "github.com/charmbracelet/crush/internal/app"
11 "github.com/charmbracelet/crush/internal/config"
12 "github.com/charmbracelet/crush/internal/llm/agent"
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/chat/splash"
17 "github.com/charmbracelet/crush/internal/tui/components/completions"
18 "github.com/charmbracelet/crush/internal/tui/components/core"
19 "github.com/charmbracelet/crush/internal/tui/components/core/layout"
20 "github.com/charmbracelet/crush/internal/tui/components/core/status"
21 "github.com/charmbracelet/crush/internal/tui/components/dialogs"
22 "github.com/charmbracelet/crush/internal/tui/components/dialogs/commands"
23 "github.com/charmbracelet/crush/internal/tui/components/dialogs/compact"
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
36// MouseEventFilter filters mouse events based on the current focus state
37// This is used with tea.WithFilter to prevent mouse scroll events from
38// interfering with typing performance in the editor
39func MouseEventFilter(m tea.Model, msg tea.Msg) tea.Msg {
40 // Only filter mouse events
41 switch msg.(type) {
42 case tea.MouseWheelMsg, tea.MouseMotionMsg:
43 // Check if we have an appModel and if editor is focused
44 if appModel, ok := m.(*appModel); ok {
45 if appModel.currentPage == chat.ChatPageID {
46 if chatPage, ok := appModel.pages[appModel.currentPage].(chat.ChatPage); ok {
47 // If editor is focused (not chatFocused), filter out mouse wheel/motion events
48 if !chatPage.IsChatFocused() {
49 return nil // Filter out the event
50 }
51 }
52 }
53 }
54 }
55 // Allow all other events to pass through
56 return msg
57}
58
59// appModel represents the main application model that manages pages, dialogs, and UI state.
60type appModel struct {
61 wWidth, wHeight int // Window dimensions
62 width, height int
63 keyMap KeyMap
64
65 currentPage page.PageID
66 previousPage page.PageID
67 pages map[page.PageID]util.Model
68 loadedPages map[page.PageID]bool
69
70 // Status
71 status status.StatusCmp
72 showingFullHelp bool
73
74 app *app.App
75
76 dialog dialogs.DialogCmp
77 completions completions.Completions
78 isConfigured bool
79
80 // Chat Page Specific
81 selectedSessionID string // The ID of the currently selected session
82}
83
84// Init initializes the application model and returns initial commands.
85func (a appModel) Init() tea.Cmd {
86 var cmds []tea.Cmd
87 cmd := a.pages[a.currentPage].Init()
88 cmds = append(cmds, cmd)
89 a.loadedPages[a.currentPage] = true
90
91 cmd = a.status.Init()
92 cmds = append(cmds, cmd)
93
94 cmds = append(cmds, tea.EnableMouseAllMotion)
95
96 return tea.Batch(cmds...)
97}
98
99// Update handles incoming messages and updates the application state.
100func (a *appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
101 var cmds []tea.Cmd
102 var cmd tea.Cmd
103 a.isConfigured = config.HasInitialDataConfig()
104
105 switch msg := msg.(type) {
106 case tea.KeyboardEnhancementsMsg:
107 for id, page := range a.pages {
108 m, pageCmd := page.Update(msg)
109 a.pages[id] = m.(util.Model)
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, completions.CloseCompletionsMsg:
122 u, completionCmd := a.completions.Update(msg)
123 a.completions = u.(completions.Completions)
124 switch msg := msg.(type) {
125 case completions.OpenCompletionsMsg:
126 x, _ := a.completions.Position()
127 if a.completions.Width()+x >= a.wWidth {
128 // Adjust X position to fit in the window.
129 msg.X = a.wWidth - a.completions.Width() - 1
130 u, completionCmd = a.completions.Update(msg)
131 a.completions = u.(completions.Completions)
132 }
133 }
134 return a, completionCmd
135
136 // Dialog messages
137 case dialogs.OpenDialogMsg, dialogs.CloseDialogMsg:
138 u, completionCmd := a.completions.Update(completions.CloseCompletionsMsg{})
139 a.completions = u.(completions.Completions)
140 u, dialogCmd := a.dialog.Update(msg)
141 a.dialog = u.(dialogs.DialogCmp)
142 return a, tea.Batch(completionCmd, dialogCmd)
143 case commands.ShowArgumentsDialogMsg:
144 return a, util.CmdHandler(
145 dialogs.OpenDialogMsg{
146 Model: commands.NewCommandArgumentsDialog(
147 msg.CommandID,
148 msg.Content,
149 msg.ArgNames,
150 ),
151 },
152 )
153 // Page change messages
154 case page.PageChangeMsg:
155 return a, a.moveToPage(msg.ID)
156
157 // Status Messages
158 case util.InfoMsg, util.ClearStatusMsg:
159 s, statusCmd := a.status.Update(msg)
160 a.status = s.(status.StatusCmp)
161 cmds = append(cmds, statusCmd)
162 return a, tea.Batch(cmds...)
163
164 // Session
165 case cmpChat.SessionSelectedMsg:
166 a.selectedSessionID = msg.ID
167 case cmpChat.SessionClearedMsg:
168 a.selectedSessionID = ""
169 // Commands
170 case commands.SwitchSessionsMsg:
171 return a, func() tea.Msg {
172 allSessions, _ := a.app.Sessions.List(context.Background())
173 return dialogs.OpenDialogMsg{
174 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
175 }
176 }
177
178 case commands.SwitchModelMsg:
179 return a, util.CmdHandler(
180 dialogs.OpenDialogMsg{
181 Model: models.NewModelDialogCmp(),
182 },
183 )
184 // Compact
185 case commands.CompactMsg:
186 return a, util.CmdHandler(dialogs.OpenDialogMsg{
187 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, msg.SessionID, true),
188 })
189
190 // Model Switch
191 case models.ModelSelectedMsg:
192 config.Get().UpdatePreferredModel(msg.ModelType, msg.Model)
193
194 // Update the agent with the new model/provider configuration
195 if err := a.app.UpdateAgentModel(); err != nil {
196 return a, util.ReportError(fmt.Errorf("model changed to %s but failed to update agent: %v", msg.Model.Model, err))
197 }
198
199 modelTypeName := "large"
200 if msg.ModelType == config.SelectedModelTypeSmall {
201 modelTypeName = "small"
202 }
203 return a, util.ReportInfo(fmt.Sprintf("%s model changed to %s", modelTypeName, msg.Model.Model))
204
205 // File Picker
206 case chat.OpenFilePickerMsg:
207 if a.dialog.ActiveDialogID() == filepicker.FilePickerID {
208 // If the commands dialog is already open, close it
209 return a, util.CmdHandler(dialogs.CloseDialogMsg{})
210 }
211 return a, util.CmdHandler(dialogs.OpenDialogMsg{
212 Model: filepicker.NewFilePickerCmp(a.app.Config().WorkingDir()),
213 })
214 // Permissions
215 case pubsub.Event[permission.PermissionNotification]:
216 // forward to page
217 updated, cmd := a.pages[a.currentPage].Update(msg)
218 a.pages[a.currentPage] = updated.(util.Model)
219 return a, cmd
220 case pubsub.Event[permission.PermissionRequest]:
221 return a, util.CmdHandler(dialogs.OpenDialogMsg{
222 Model: permissions.NewPermissionDialogCmp(msg.Payload),
223 })
224 case permissions.PermissionResponseMsg:
225 switch msg.Action {
226 case permissions.PermissionAllow:
227 a.app.Permissions.Grant(msg.Permission)
228 case permissions.PermissionAllowForSession:
229 a.app.Permissions.GrantPersistent(msg.Permission)
230 case permissions.PermissionDeny:
231 a.app.Permissions.Deny(msg.Permission)
232 }
233 return a, nil
234 // Agent Events
235 case pubsub.Event[agent.AgentEvent]:
236 payload := msg.Payload
237
238 // Forward agent events to dialogs
239 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() == compact.CompactDialogID {
240 u, dialogCmd := a.dialog.Update(payload)
241 a.dialog = u.(dialogs.DialogCmp)
242 cmds = append(cmds, dialogCmd)
243 }
244
245 // Handle auto-compact logic
246 if payload.Done && payload.Type == agent.AgentEventTypeResponse && a.selectedSessionID != "" {
247 // Get current session to check token usage
248 session, err := a.app.Sessions.Get(context.Background(), a.selectedSessionID)
249 if err == nil {
250 model := a.app.CoderAgent.Model()
251 contextWindow := model.ContextWindow
252 tokens := session.CompletionTokens + session.PromptTokens
253 if (tokens >= int64(float64(contextWindow)*0.95)) && !config.Get().Options.DisableAutoSummarize { // Show compact confirmation dialog
254 cmds = append(cmds, util.CmdHandler(dialogs.OpenDialogMsg{
255 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, a.selectedSessionID, false),
256 }))
257 }
258 }
259 }
260
261 return a, tea.Batch(cmds...)
262 case splash.OnboardingCompleteMsg:
263 a.isConfigured = config.HasInitialDataConfig()
264 updated, pageCmd := a.pages[a.currentPage].Update(msg)
265 a.pages[a.currentPage] = updated.(util.Model)
266 cmds = append(cmds, pageCmd)
267 return a, tea.Batch(cmds...)
268 // Key Press Messages
269 case tea.KeyPressMsg:
270 return a, a.handleKeyPressMsg(msg)
271
272 case tea.PasteMsg:
273 if a.dialog.HasDialogs() {
274 u, dialogCmd := a.dialog.Update(msg)
275 a.dialog = u.(dialogs.DialogCmp)
276 cmds = append(cmds, dialogCmd)
277 } else {
278 updated, pageCmd := a.pages[a.currentPage].Update(msg)
279 a.pages[a.currentPage] = updated.(util.Model)
280 cmds = append(cmds, pageCmd)
281 }
282 return a, tea.Batch(cmds...)
283 }
284 s, _ := a.status.Update(msg)
285 a.status = s.(status.StatusCmp)
286 updated, cmd := a.pages[a.currentPage].Update(msg)
287 a.pages[a.currentPage] = updated.(util.Model)
288 if a.dialog.HasDialogs() {
289 u, dialogCmd := a.dialog.Update(msg)
290 a.dialog = u.(dialogs.DialogCmp)
291 cmds = append(cmds, dialogCmd)
292 }
293 cmds = append(cmds, cmd)
294 return a, tea.Batch(cmds...)
295}
296
297// handleWindowResize processes window resize events and updates all components.
298func (a *appModel) handleWindowResize(width, height int) tea.Cmd {
299 var cmds []tea.Cmd
300 if a.showingFullHelp {
301 height -= 5
302 } else {
303 height -= 2
304 }
305 a.width, a.height = width, height
306 // Update status bar
307 s, cmd := a.status.Update(tea.WindowSizeMsg{Width: width, Height: height})
308 a.status = s.(status.StatusCmp)
309 cmds = append(cmds, cmd)
310
311 // Update the current page
312 for p, page := range a.pages {
313 updated, pageCmd := page.Update(tea.WindowSizeMsg{Width: width, Height: height})
314 a.pages[p] = updated.(util.Model)
315 cmds = append(cmds, pageCmd)
316 }
317
318 // Update the dialogs
319 dialog, cmd := a.dialog.Update(tea.WindowSizeMsg{Width: width, Height: height})
320 a.dialog = dialog.(dialogs.DialogCmp)
321 cmds = append(cmds, cmd)
322
323 return tea.Batch(cmds...)
324}
325
326// handleKeyPressMsg processes keyboard input and routes to appropriate handlers.
327func (a *appModel) handleKeyPressMsg(msg tea.KeyPressMsg) tea.Cmd {
328 if a.completions.Open() {
329 // completions
330 keyMap := a.completions.KeyMap()
331 switch {
332 case key.Matches(msg, keyMap.Up), key.Matches(msg, keyMap.Down),
333 key.Matches(msg, keyMap.Select), key.Matches(msg, keyMap.Cancel),
334 key.Matches(msg, keyMap.UpInsert), key.Matches(msg, keyMap.DownInsert):
335 u, cmd := a.completions.Update(msg)
336 a.completions = u.(completions.Completions)
337 return cmd
338 }
339 }
340 switch {
341 // help
342 case key.Matches(msg, a.keyMap.Help):
343 a.status.ToggleFullHelp()
344 a.showingFullHelp = !a.showingFullHelp
345 return a.handleWindowResize(a.wWidth, a.wHeight)
346 // dialogs
347 case key.Matches(msg, a.keyMap.Quit):
348 if a.dialog.ActiveDialogID() == quit.QuitDialogID {
349 return tea.Quit
350 }
351 return util.CmdHandler(dialogs.OpenDialogMsg{
352 Model: quit.NewQuitDialog(),
353 })
354
355 case key.Matches(msg, a.keyMap.Commands):
356 // if the app is not configured show no commands
357 if !a.isConfigured {
358 return nil
359 }
360 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
361 return util.CmdHandler(dialogs.CloseDialogMsg{})
362 }
363 if a.dialog.HasDialogs() {
364 return nil
365 }
366 return util.CmdHandler(dialogs.OpenDialogMsg{
367 Model: commands.NewCommandDialog(a.selectedSessionID),
368 })
369 case key.Matches(msg, a.keyMap.Sessions):
370 // if the app is not configured show no sessions
371 if !a.isConfigured {
372 return nil
373 }
374 if a.dialog.ActiveDialogID() == sessions.SessionsDialogID {
375 return util.CmdHandler(dialogs.CloseDialogMsg{})
376 }
377 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() != commands.CommandsDialogID {
378 return nil
379 }
380 var cmds []tea.Cmd
381 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
382 // If the commands dialog is open, close it first
383 cmds = append(cmds, util.CmdHandler(dialogs.CloseDialogMsg{}))
384 }
385 cmds = append(cmds,
386 func() tea.Msg {
387 allSessions, _ := a.app.Sessions.List(context.Background())
388 return dialogs.OpenDialogMsg{
389 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
390 }
391 },
392 )
393 return tea.Sequence(cmds...)
394 default:
395 if a.dialog.HasDialogs() {
396 u, dialogCmd := a.dialog.Update(msg)
397 a.dialog = u.(dialogs.DialogCmp)
398 return dialogCmd
399 } else {
400 updated, cmd := a.pages[a.currentPage].Update(msg)
401 a.pages[a.currentPage] = updated.(util.Model)
402 return cmd
403 }
404 }
405}
406
407// moveToPage handles navigation between different pages in the application.
408func (a *appModel) moveToPage(pageID page.PageID) tea.Cmd {
409 if a.app.CoderAgent.IsBusy() {
410 // TODO: maybe remove this : For now we don't move to any page if the agent is busy
411 return util.ReportWarn("Agent is busy, please wait...")
412 }
413
414 var cmds []tea.Cmd
415 if _, ok := a.loadedPages[pageID]; !ok {
416 cmd := a.pages[pageID].Init()
417 cmds = append(cmds, cmd)
418 a.loadedPages[pageID] = true
419 }
420 a.previousPage = a.currentPage
421 a.currentPage = pageID
422 if sizable, ok := a.pages[a.currentPage].(layout.Sizeable); ok {
423 cmd := sizable.SetSize(a.width, a.height)
424 cmds = append(cmds, cmd)
425 }
426
427 return tea.Batch(cmds...)
428}
429
430// View renders the complete application interface including pages, dialogs, and overlays.
431func (a *appModel) View() tea.View {
432 var view tea.View
433 t := styles.CurrentTheme()
434 view.BackgroundColor = t.BgBase
435 if a.wWidth < 25 || a.wHeight < 15 {
436 view.Layer = lipgloss.NewCanvas(
437 lipgloss.NewLayer(
438 t.S().Base.Width(a.wWidth).Height(a.wHeight).
439 Align(lipgloss.Center, lipgloss.Center).
440 Render(
441 t.S().Base.
442 Padding(1, 4).
443 Foreground(t.White).
444 BorderStyle(lipgloss.RoundedBorder()).
445 BorderForeground(t.Primary).
446 Render("Window too small!"),
447 ),
448 ),
449 )
450 return view
451 }
452
453 page := a.pages[a.currentPage]
454 if withHelp, ok := page.(core.KeyMapHelp); ok {
455 a.status.SetKeyMap(withHelp.Help())
456 }
457 pageView := page.View()
458 components := []string{
459 pageView,
460 }
461 components = append(components, a.status.View())
462
463 appView := lipgloss.JoinVertical(lipgloss.Top, components...)
464 layers := []*lipgloss.Layer{
465 lipgloss.NewLayer(appView),
466 }
467 if a.dialog.HasDialogs() {
468 layers = append(
469 layers,
470 a.dialog.GetLayers()...,
471 )
472 }
473
474 var cursor *tea.Cursor
475 if v, ok := page.(util.Cursor); ok {
476 cursor = v.Cursor()
477 // Hide the cursor if it's positioned outside the textarea
478 statusHeight := a.height - strings.Count(pageView, "\n") + 1
479 if cursor != nil && cursor.Y+statusHeight+chat.EditorHeight-2 <= a.height { // 2 for the top and bottom app padding
480 cursor = nil
481 }
482 }
483 activeView := a.dialog.ActiveModel()
484 if activeView != nil {
485 cursor = nil // Reset cursor if a dialog is active unless it implements util.Cursor
486 if v, ok := activeView.(util.Cursor); ok {
487 cursor = v.Cursor()
488 }
489 }
490
491 if a.completions.Open() && cursor != nil {
492 cmp := a.completions.View()
493 x, y := a.completions.Position()
494 layers = append(
495 layers,
496 lipgloss.NewLayer(cmp).X(x).Y(y),
497 )
498 }
499
500 canvas := lipgloss.NewCanvas(
501 layers...,
502 )
503
504 view.Layer = canvas
505 view.Cursor = cursor
506 return view
507}
508
509// New creates and initializes a new TUI application model.
510func New(app *app.App) tea.Model {
511 chatPage := chat.New(app)
512 keyMap := DefaultKeyMap()
513 keyMap.pageBindings = chatPage.Bindings()
514
515 model := &appModel{
516 currentPage: chat.ChatPageID,
517 app: app,
518 status: status.NewStatusCmp(),
519 loadedPages: make(map[page.PageID]bool),
520 keyMap: keyMap,
521
522 pages: map[page.PageID]util.Model{
523 chat.ChatPageID: chatPage,
524 },
525
526 dialog: dialogs.NewDialogCmp(),
527 completions: completions.New(),
528 }
529
530 return model
531}