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.PermissionRequest]:
209 return a, util.CmdHandler(dialogs.OpenDialogMsg{
210 Model: permissions.NewPermissionDialogCmp(msg.Payload),
211 })
212 case permissions.PermissionResponseMsg:
213 switch msg.Action {
214 case permissions.PermissionAllow:
215 a.app.Permissions.Grant(msg.Permission)
216 case permissions.PermissionAllowForSession:
217 a.app.Permissions.GrantPersistent(msg.Permission)
218 case permissions.PermissionDeny:
219 a.app.Permissions.Deny(msg.Permission)
220 }
221 return a, nil
222 // Agent Events
223 case pubsub.Event[agent.AgentEvent]:
224 payload := msg.Payload
225
226 // Forward agent events to dialogs
227 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() == compact.CompactDialogID {
228 u, dialogCmd := a.dialog.Update(payload)
229 a.dialog = u.(dialogs.DialogCmp)
230 cmds = append(cmds, dialogCmd)
231 }
232
233 // Handle auto-compact logic
234 if payload.Done && payload.Type == agent.AgentEventTypeResponse && a.selectedSessionID != "" {
235 // Get current session to check token usage
236 session, err := a.app.Sessions.Get(context.Background(), a.selectedSessionID)
237 if err == nil {
238 model := a.app.CoderAgent.Model()
239 contextWindow := model.ContextWindow
240 tokens := session.CompletionTokens + session.PromptTokens
241 if (tokens >= int64(float64(contextWindow)*0.95)) && !config.Get().Options.DisableAutoSummarize { // Show compact confirmation dialog
242 cmds = append(cmds, util.CmdHandler(dialogs.OpenDialogMsg{
243 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, a.selectedSessionID, false),
244 }))
245 }
246 }
247 }
248
249 return a, tea.Batch(cmds...)
250 case splash.OnboardingCompleteMsg:
251 a.isConfigured = config.HasInitialDataConfig()
252 updated, pageCmd := a.pages[a.currentPage].Update(msg)
253 a.pages[a.currentPage] = updated.(util.Model)
254 cmds = append(cmds, pageCmd)
255 return a, tea.Batch(cmds...)
256 // Key Press Messages
257 case tea.KeyPressMsg:
258 return a, a.handleKeyPressMsg(msg)
259
260 case tea.PasteMsg:
261 if a.dialog.HasDialogs() {
262 u, dialogCmd := a.dialog.Update(msg)
263 a.dialog = u.(dialogs.DialogCmp)
264 cmds = append(cmds, dialogCmd)
265 } else {
266 updated, pageCmd := a.pages[a.currentPage].Update(msg)
267 a.pages[a.currentPage] = updated.(util.Model)
268 cmds = append(cmds, pageCmd)
269 }
270 return a, tea.Batch(cmds...)
271 }
272 s, _ := a.status.Update(msg)
273 a.status = s.(status.StatusCmp)
274 updated, cmd := a.pages[a.currentPage].Update(msg)
275 a.pages[a.currentPage] = updated.(util.Model)
276 if a.dialog.HasDialogs() {
277 u, dialogCmd := a.dialog.Update(msg)
278 a.dialog = u.(dialogs.DialogCmp)
279 cmds = append(cmds, dialogCmd)
280 }
281 cmds = append(cmds, cmd)
282 return a, tea.Batch(cmds...)
283}
284
285// handleWindowResize processes window resize events and updates all components.
286func (a *appModel) handleWindowResize(width, height int) tea.Cmd {
287 var cmds []tea.Cmd
288 if a.showingFullHelp {
289 height -= 5
290 } else {
291 height -= 2
292 }
293 a.width, a.height = width, height
294 // Update status bar
295 s, cmd := a.status.Update(tea.WindowSizeMsg{Width: width, Height: height})
296 a.status = s.(status.StatusCmp)
297 cmds = append(cmds, cmd)
298
299 // Update the current page
300 for p, page := range a.pages {
301 updated, pageCmd := page.Update(tea.WindowSizeMsg{Width: width, Height: height})
302 a.pages[p] = updated.(util.Model)
303 cmds = append(cmds, pageCmd)
304 }
305
306 // Update the dialogs
307 dialog, cmd := a.dialog.Update(tea.WindowSizeMsg{Width: width, Height: height})
308 a.dialog = dialog.(dialogs.DialogCmp)
309 cmds = append(cmds, cmd)
310
311 return tea.Batch(cmds...)
312}
313
314// handleKeyPressMsg processes keyboard input and routes to appropriate handlers.
315func (a *appModel) handleKeyPressMsg(msg tea.KeyPressMsg) tea.Cmd {
316 if a.completions.Open() {
317 // completions
318 keyMap := a.completions.KeyMap()
319 switch {
320 case key.Matches(msg, keyMap.Up), key.Matches(msg, keyMap.Down),
321 key.Matches(msg, keyMap.Select), key.Matches(msg, keyMap.Cancel),
322 key.Matches(msg, keyMap.UpInsert), key.Matches(msg, keyMap.DownInsert):
323 u, cmd := a.completions.Update(msg)
324 a.completions = u.(completions.Completions)
325 return cmd
326 }
327 }
328 switch {
329 // help
330 case key.Matches(msg, a.keyMap.Help):
331 a.status.ToggleFullHelp()
332 a.showingFullHelp = !a.showingFullHelp
333 return a.handleWindowResize(a.wWidth, a.wHeight)
334 // dialogs
335 case key.Matches(msg, a.keyMap.Quit):
336 if a.dialog.ActiveDialogID() == quit.QuitDialogID {
337 return tea.Quit
338 }
339 return util.CmdHandler(dialogs.OpenDialogMsg{
340 Model: quit.NewQuitDialog(),
341 })
342
343 case key.Matches(msg, a.keyMap.Commands):
344 // if the app is not configured show no commands
345 if !a.isConfigured {
346 return nil
347 }
348 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
349 return util.CmdHandler(dialogs.CloseDialogMsg{})
350 }
351 if a.dialog.HasDialogs() {
352 return nil
353 }
354 return util.CmdHandler(dialogs.OpenDialogMsg{
355 Model: commands.NewCommandDialog(a.selectedSessionID),
356 })
357 case key.Matches(msg, a.keyMap.Sessions):
358 // if the app is not configured show no sessions
359 if !a.isConfigured {
360 return nil
361 }
362 if a.dialog.ActiveDialogID() == sessions.SessionsDialogID {
363 return util.CmdHandler(dialogs.CloseDialogMsg{})
364 }
365 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() != commands.CommandsDialogID {
366 return nil
367 }
368 var cmds []tea.Cmd
369 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
370 // If the commands dialog is open, close it first
371 cmds = append(cmds, util.CmdHandler(dialogs.CloseDialogMsg{}))
372 }
373 cmds = append(cmds,
374 func() tea.Msg {
375 allSessions, _ := a.app.Sessions.List(context.Background())
376 return dialogs.OpenDialogMsg{
377 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
378 }
379 },
380 )
381 return tea.Sequence(cmds...)
382 default:
383 if a.dialog.HasDialogs() {
384 u, dialogCmd := a.dialog.Update(msg)
385 a.dialog = u.(dialogs.DialogCmp)
386 return dialogCmd
387 } else {
388 updated, cmd := a.pages[a.currentPage].Update(msg)
389 a.pages[a.currentPage] = updated.(util.Model)
390 return cmd
391 }
392 }
393}
394
395// moveToPage handles navigation between different pages in the application.
396func (a *appModel) moveToPage(pageID page.PageID) tea.Cmd {
397 if a.app.CoderAgent.IsBusy() {
398 // TODO: maybe remove this : For now we don't move to any page if the agent is busy
399 return util.ReportWarn("Agent is busy, please wait...")
400 }
401
402 var cmds []tea.Cmd
403 if _, ok := a.loadedPages[pageID]; !ok {
404 cmd := a.pages[pageID].Init()
405 cmds = append(cmds, cmd)
406 a.loadedPages[pageID] = true
407 }
408 a.previousPage = a.currentPage
409 a.currentPage = pageID
410 if sizable, ok := a.pages[a.currentPage].(layout.Sizeable); ok {
411 cmd := sizable.SetSize(a.width, a.height)
412 cmds = append(cmds, cmd)
413 }
414
415 return tea.Batch(cmds...)
416}
417
418// View renders the complete application interface including pages, dialogs, and overlays.
419func (a *appModel) View() tea.View {
420 var view tea.View
421 t := styles.CurrentTheme()
422 view.BackgroundColor = t.BgBase
423 if a.wWidth < 25 || a.wHeight < 15 {
424 view.Layer = lipgloss.NewCanvas(
425 lipgloss.NewLayer(
426 t.S().Base.Width(a.wWidth).Height(a.wHeight).
427 Align(lipgloss.Center, lipgloss.Center).
428 Render(
429 t.S().Base.
430 Padding(1, 4).
431 Foreground(t.White).
432 BorderStyle(lipgloss.RoundedBorder()).
433 BorderForeground(t.Primary).
434 Render("Window too small!"),
435 ),
436 ),
437 )
438 return view
439 }
440
441 page := a.pages[a.currentPage]
442 if withHelp, ok := page.(core.KeyMapHelp); ok {
443 a.status.SetKeyMap(withHelp.Help())
444 }
445 pageView := page.View()
446 components := []string{
447 pageView,
448 }
449 components = append(components, a.status.View())
450
451 appView := lipgloss.JoinVertical(lipgloss.Top, components...)
452 layers := []*lipgloss.Layer{
453 lipgloss.NewLayer(appView),
454 }
455 if a.dialog.HasDialogs() {
456 layers = append(
457 layers,
458 a.dialog.GetLayers()...,
459 )
460 }
461
462 var cursor *tea.Cursor
463 if v, ok := page.(util.Cursor); ok {
464 cursor = v.Cursor()
465 // Hide the cursor if it's positioned outside the textarea
466 statusHeight := a.height - strings.Count(pageView, "\n") + 1
467 if cursor != nil && cursor.Y+statusHeight+chat.EditorHeight-2 <= a.height { // 2 for the top and bottom app padding
468 cursor = nil
469 }
470 }
471 activeView := a.dialog.ActiveModel()
472 if activeView != nil {
473 cursor = nil // Reset cursor if a dialog is active unless it implements util.Cursor
474 if v, ok := activeView.(util.Cursor); ok {
475 cursor = v.Cursor()
476 }
477 }
478
479 if a.completions.Open() && cursor != nil {
480 cmp := a.completions.View()
481 x, y := a.completions.Position()
482 layers = append(
483 layers,
484 lipgloss.NewLayer(cmp).X(x).Y(y),
485 )
486 }
487
488 canvas := lipgloss.NewCanvas(
489 layers...,
490 )
491
492 view.Layer = canvas
493 view.Cursor = cursor
494 return view
495}
496
497// New creates and initializes a new TUI application model.
498func New(app *app.App) tea.Model {
499 chatPage := chat.New(app)
500 keyMap := DefaultKeyMap()
501 keyMap.pageBindings = chatPage.Bindings()
502
503 model := &appModel{
504 currentPage: chat.ChatPageID,
505 app: app,
506 status: status.NewStatusCmp(),
507 loadedPages: make(map[page.PageID]bool),
508 keyMap: keyMap,
509
510 pages: map[page.PageID]util.Model{
511 chat.ChatPageID: chatPage,
512 },
513
514 dialog: dialogs.NewDialogCmp(),
515 completions: completions.New(),
516 }
517
518 return model
519}