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