1package tui
2
3import (
4 "context"
5 "fmt"
6
7 "github.com/charmbracelet/bubbles/v2/key"
8 tea "github.com/charmbracelet/bubbletea/v2"
9 "github.com/charmbracelet/crush/internal/app"
10 "github.com/charmbracelet/crush/internal/config"
11 "github.com/charmbracelet/crush/internal/llm/agent"
12 "github.com/charmbracelet/crush/internal/permission"
13 "github.com/charmbracelet/crush/internal/pubsub"
14 cmpChat "github.com/charmbracelet/crush/internal/tui/components/chat"
15 "github.com/charmbracelet/crush/internal/tui/components/chat/splash"
16 "github.com/charmbracelet/crush/internal/tui/components/completions"
17 "github.com/charmbracelet/crush/internal/tui/components/core"
18 "github.com/charmbracelet/crush/internal/tui/components/core/layout"
19 "github.com/charmbracelet/crush/internal/tui/components/core/status"
20 "github.com/charmbracelet/crush/internal/tui/components/dialogs"
21 "github.com/charmbracelet/crush/internal/tui/components/dialogs/commands"
22 "github.com/charmbracelet/crush/internal/tui/components/dialogs/compact"
23 "github.com/charmbracelet/crush/internal/tui/components/dialogs/filepicker"
24 "github.com/charmbracelet/crush/internal/tui/components/dialogs/models"
25 "github.com/charmbracelet/crush/internal/tui/components/dialogs/permissions"
26 "github.com/charmbracelet/crush/internal/tui/components/dialogs/quit"
27 "github.com/charmbracelet/crush/internal/tui/components/dialogs/sessions"
28 "github.com/charmbracelet/crush/internal/tui/page"
29 "github.com/charmbracelet/crush/internal/tui/page/chat"
30 "github.com/charmbracelet/crush/internal/tui/styles"
31 "github.com/charmbracelet/crush/internal/tui/util"
32 "github.com/charmbracelet/lipgloss/v2"
33)
34
35// MouseEventFilter filters mouse events based on the current focus state
36// This is used with tea.WithFilter to prevent mouse scroll events from
37// interfering with typing performance in the editor
38func MouseEventFilter(m tea.Model, msg tea.Msg) tea.Msg {
39 // Only filter mouse events
40 switch msg.(type) {
41 case tea.MouseWheelMsg, tea.MouseMotionMsg:
42 // Check if we have an appModel and if editor is focused
43 if appModel, ok := m.(*appModel); ok {
44 if appModel.currentPage == chat.ChatPageID {
45 if chatPage, ok := appModel.pages[appModel.currentPage].(chat.ChatPage); ok {
46 // If editor is focused (not chatFocused), filter out mouse wheel/motion events
47 if !chatPage.IsChatFocused() {
48 return nil // Filter out the event
49 }
50 }
51 }
52 }
53 }
54 // Allow all other events to pass through
55 return msg
56}
57
58// appModel represents the main application model that manages pages, dialogs, and UI state.
59type appModel struct {
60 wWidth, wHeight int // Window dimensions
61 width, height int
62 keyMap KeyMap
63
64 currentPage page.PageID
65 previousPage page.PageID
66 pages map[page.PageID]util.Model
67 loadedPages map[page.PageID]bool
68
69 // Status
70 status status.StatusCmp
71 showingFullHelp bool
72
73 app *app.App
74
75 dialog dialogs.DialogCmp
76 completions completions.Completions
77 isConfigured bool
78
79 // Chat Page Specific
80 selectedSessionID string // The ID of the currently selected session
81}
82
83// Init initializes the application model and returns initial commands.
84func (a appModel) Init() tea.Cmd {
85 var cmds []tea.Cmd
86 cmd := a.pages[a.currentPage].Init()
87 cmds = append(cmds, cmd)
88 a.loadedPages[a.currentPage] = true
89
90 cmd = a.status.Init()
91 cmds = append(cmds, cmd)
92
93 cmds = append(cmds, tea.EnableMouseAllMotion)
94
95 return tea.Batch(cmds...)
96}
97
98// Update handles incoming messages and updates the application state.
99func (a *appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
100 var cmds []tea.Cmd
101 var cmd tea.Cmd
102 a.isConfigured = config.HasInitialDataConfig()
103
104 switch msg := msg.(type) {
105 case tea.KeyboardEnhancementsMsg:
106 for id, page := range a.pages {
107 m, pageCmd := page.Update(msg)
108 a.pages[id] = m.(util.Model)
109 if pageCmd != nil {
110 cmds = append(cmds, pageCmd)
111 }
112 }
113 return a, tea.Batch(cmds...)
114 case tea.WindowSizeMsg:
115 a.completions.Update(msg)
116 return a, a.handleWindowResize(msg.Width, msg.Height)
117
118 // Completions messages
119 case completions.OpenCompletionsMsg, completions.FilterCompletionsMsg, completions.CloseCompletionsMsg:
120 u, completionCmd := a.completions.Update(msg)
121 a.completions = u.(completions.Completions)
122 switch msg := msg.(type) {
123 case completions.OpenCompletionsMsg:
124 x, _ := a.completions.Position()
125 if a.completions.Width()+x >= a.wWidth {
126 // Adjust X position to fit in the window.
127 msg.X = a.wWidth - a.completions.Width() - 1
128 u, completionCmd = a.completions.Update(msg)
129 a.completions = u.(completions.Completions)
130 }
131 }
132 return a, completionCmd
133
134 // Dialog messages
135 case dialogs.OpenDialogMsg, dialogs.CloseDialogMsg:
136 u, completionCmd := a.completions.Update(completions.CloseCompletionsMsg{})
137 a.completions = u.(completions.Completions)
138 u, dialogCmd := a.dialog.Update(msg)
139 a.dialog = u.(dialogs.DialogCmp)
140 return a, tea.Batch(completionCmd, dialogCmd)
141 case commands.ShowArgumentsDialogMsg:
142 return a, util.CmdHandler(
143 dialogs.OpenDialogMsg{
144 Model: commands.NewCommandArgumentsDialog(
145 msg.CommandID,
146 msg.Content,
147 msg.ArgNames,
148 ),
149 },
150 )
151 // Page change messages
152 case page.PageChangeMsg:
153 return a, a.moveToPage(msg.ID)
154
155 // Status Messages
156 case util.InfoMsg, util.ClearStatusMsg:
157 s, statusCmd := a.status.Update(msg)
158 a.status = s.(status.StatusCmp)
159 cmds = append(cmds, statusCmd)
160 return a, tea.Batch(cmds...)
161
162 // Session
163 case cmpChat.SessionSelectedMsg:
164 a.selectedSessionID = msg.ID
165 case cmpChat.SessionClearedMsg:
166 a.selectedSessionID = ""
167 // Commands
168 case commands.SwitchSessionsMsg:
169 return a, func() tea.Msg {
170 allSessions, _ := a.app.Sessions.List(context.Background())
171 return dialogs.OpenDialogMsg{
172 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
173 }
174 }
175
176 case commands.SwitchModelMsg:
177 return a, util.CmdHandler(
178 dialogs.OpenDialogMsg{
179 Model: models.NewModelDialogCmp(),
180 },
181 )
182 // Compact
183 case commands.CompactMsg:
184 return a, util.CmdHandler(dialogs.OpenDialogMsg{
185 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, msg.SessionID, true),
186 })
187
188 // Model Switch
189 case models.ModelSelectedMsg:
190 config.Get().UpdatePreferredModel(msg.ModelType, msg.Model)
191
192 // Update the agent with the new model/provider configuration
193 if err := a.app.UpdateAgentModel(); err != nil {
194 return a, util.ReportError(fmt.Errorf("model changed to %s but failed to update agent: %v", msg.Model.Model, err))
195 }
196
197 modelTypeName := "large"
198 if msg.ModelType == config.SelectedModelTypeSmall {
199 modelTypeName = "small"
200 }
201 return a, util.ReportInfo(fmt.Sprintf("%s model changed to %s", modelTypeName, msg.Model.Model))
202
203 // File Picker
204 case chat.OpenFilePickerMsg:
205 if a.dialog.ActiveDialogID() == filepicker.FilePickerID {
206 // If the commands dialog is already open, close it
207 return a, util.CmdHandler(dialogs.CloseDialogMsg{})
208 }
209 return a, util.CmdHandler(dialogs.OpenDialogMsg{
210 Model: filepicker.NewFilePickerCmp(a.app.Config().WorkingDir()),
211 })
212 // Permissions
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 a.wWidth, a.wHeight = width, height
294 if a.showingFullHelp {
295 height -= 5
296 } else {
297 height -= 2
298 }
299 a.width, a.height = width, height
300 // Update status bar
301 s, cmd := a.status.Update(tea.WindowSizeMsg{Width: width, Height: height})
302 a.status = s.(status.StatusCmp)
303 cmds = append(cmds, cmd)
304
305 // Update the current page
306 for p, page := range a.pages {
307 updated, pageCmd := page.Update(tea.WindowSizeMsg{Width: width, Height: height})
308 a.pages[p] = updated.(util.Model)
309 cmds = append(cmds, pageCmd)
310 }
311
312 // Update the dialogs
313 dialog, cmd := a.dialog.Update(tea.WindowSizeMsg{Width: width, Height: height})
314 a.dialog = dialog.(dialogs.DialogCmp)
315 cmds = append(cmds, cmd)
316
317 return tea.Batch(cmds...)
318}
319
320// handleKeyPressMsg processes keyboard input and routes to appropriate handlers.
321func (a *appModel) handleKeyPressMsg(msg tea.KeyPressMsg) tea.Cmd {
322 switch {
323 // completions
324 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Up):
325 u, cmd := a.completions.Update(msg)
326 a.completions = u.(completions.Completions)
327 return cmd
328
329 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Down):
330 u, cmd := a.completions.Update(msg)
331 a.completions = u.(completions.Completions)
332 return cmd
333 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Select):
334 u, cmd := a.completions.Update(msg)
335 a.completions = u.(completions.Completions)
336 return cmd
337 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Cancel):
338 u, cmd := a.completions.Update(msg)
339 a.completions = u.(completions.Completions)
340 return cmd
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 page := a.pages[a.currentPage]
433 if withHelp, ok := page.(core.KeyMapHelp); ok {
434 a.status.SetKeyMap(withHelp.Help())
435 }
436 pageView := page.View()
437 components := []string{
438 pageView,
439 }
440 components = append(components, a.status.View())
441
442 appView := lipgloss.JoinVertical(lipgloss.Top, components...)
443 layers := []*lipgloss.Layer{
444 lipgloss.NewLayer(appView),
445 }
446 if a.dialog.HasDialogs() {
447 layers = append(
448 layers,
449 a.dialog.GetLayers()...,
450 )
451 }
452
453 var cursor *tea.Cursor
454 if v, ok := page.(util.Cursor); ok {
455 cursor = v.Cursor()
456 }
457 activeView := a.dialog.ActiveModel()
458 if activeView != nil {
459 cursor = nil // Reset cursor if a dialog is active unless it implements util.Cursor
460 if v, ok := activeView.(util.Cursor); ok {
461 cursor = v.Cursor()
462 }
463 }
464
465 if a.completions.Open() && cursor != nil {
466 cmp := a.completions.View()
467 x, y := a.completions.Position()
468 layers = append(
469 layers,
470 lipgloss.NewLayer(cmp).X(x).Y(y),
471 )
472 }
473
474 canvas := lipgloss.NewCanvas(
475 layers...,
476 )
477
478 var view tea.View
479 t := styles.CurrentTheme()
480 view.Layer = canvas
481 view.BackgroundColor = t.BgBase
482 view.Cursor = cursor
483 return view
484}
485
486// New creates and initializes a new TUI application model.
487func New(app *app.App) tea.Model {
488 chatPage := chat.New(app)
489 keyMap := DefaultKeyMap()
490 keyMap.pageBindings = chatPage.Bindings()
491
492 model := &appModel{
493 currentPage: chat.ChatPageID,
494 app: app,
495 status: status.NewStatusCmp(),
496 loadedPages: make(map[page.PageID]bool),
497 keyMap: keyMap,
498
499 pages: map[page.PageID]util.Model{
500 chat.ChatPageID: chatPage,
501 },
502
503 dialog: dialogs.NewDialogCmp(),
504 completions: completions.New(),
505 }
506
507 return model
508}