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