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/ollama"
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/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
78 // Chat Page Specific
79 selectedSessionID string // The ID of the currently selected session
80}
81
82// Init initializes the application model and returns initial commands.
83func (a appModel) Init() tea.Cmd {
84 var cmds []tea.Cmd
85 cmd := a.pages[a.currentPage].Init()
86 cmds = append(cmds, cmd)
87 a.loadedPages[a.currentPage] = true
88
89 cmd = a.status.Init()
90 cmds = append(cmds, cmd)
91
92 cmds = append(cmds, tea.EnableMouseAllMotion)
93
94 return tea.Batch(cmds...)
95}
96
97// Update handles incoming messages and updates the application state.
98func (a *appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
99 var cmds []tea.Cmd
100 var cmd tea.Cmd
101
102 switch msg := msg.(type) {
103 case tea.KeyboardEnhancementsMsg:
104 for id, page := range a.pages {
105 m, pageCmd := page.Update(msg)
106 a.pages[id] = m.(util.Model)
107 if pageCmd != nil {
108 cmds = append(cmds, pageCmd)
109 }
110 }
111 return a, tea.Batch(cmds...)
112 case tea.WindowSizeMsg:
113 a.completions.Update(msg)
114 return a, a.handleWindowResize(msg.Width, msg.Height)
115
116 // Completions messages
117 case completions.OpenCompletionsMsg, completions.FilterCompletionsMsg, completions.CloseCompletionsMsg:
118 u, completionCmd := a.completions.Update(msg)
119 a.completions = u.(completions.Completions)
120 return a, completionCmd
121
122 // Dialog messages
123 case dialogs.OpenDialogMsg, dialogs.CloseDialogMsg:
124 u, completionCmd := a.completions.Update(completions.CloseCompletionsMsg{})
125 a.completions = u.(completions.Completions)
126 u, dialogCmd := a.dialog.Update(msg)
127 a.dialog = u.(dialogs.DialogCmp)
128 return a, tea.Batch(completionCmd, dialogCmd)
129 case commands.ShowArgumentsDialogMsg:
130 return a, util.CmdHandler(
131 dialogs.OpenDialogMsg{
132 Model: commands.NewCommandArgumentsDialog(
133 msg.CommandID,
134 msg.Content,
135 msg.ArgNames,
136 ),
137 },
138 )
139 // Page change messages
140 case page.PageChangeMsg:
141 return a, a.moveToPage(msg.ID)
142
143 // Status Messages
144 case util.InfoMsg, util.ClearStatusMsg:
145 s, statusCmd := a.status.Update(msg)
146 a.status = s.(status.StatusCmp)
147 cmds = append(cmds, statusCmd)
148 return a, tea.Batch(cmds...)
149
150 // Session
151 case cmpChat.SessionSelectedMsg:
152 a.selectedSessionID = msg.ID
153 case cmpChat.SessionClearedMsg:
154 a.selectedSessionID = ""
155 // Commands
156 case commands.SwitchSessionsMsg:
157 return a, func() tea.Msg {
158 allSessions, _ := a.app.Sessions.List(context.Background())
159 return dialogs.OpenDialogMsg{
160 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
161 }
162 }
163
164 case commands.SwitchModelMsg:
165 return a, util.CmdHandler(
166 dialogs.OpenDialogMsg{
167 Model: models.NewModelDialogCmp(),
168 },
169 )
170 // Compact
171 case commands.CompactMsg:
172 return a, util.CmdHandler(dialogs.OpenDialogMsg{
173 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, msg.SessionID, true),
174 })
175
176 // Model Switch
177 case models.ModelSelectedMsg:
178 config.Get().UpdatePreferredModel(msg.ModelType, msg.Model)
179
180 // If this is an Ollama model, ensure it's running
181 if msg.Model.Provider == "ollama" {
182 if err := ollama.EnsureModelLoaded(context.Background(), msg.Model.Model); err != nil {
183 return a, util.ReportError(fmt.Errorf("failed to start Ollama model %s: %v", msg.Model.Model, err))
184 }
185 }
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(),
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 // Key Press Messages
251 case tea.KeyPressMsg:
252 return a, a.handleKeyPressMsg(msg)
253 }
254 s, _ := a.status.Update(msg)
255 a.status = s.(status.StatusCmp)
256 updated, cmd := a.pages[a.currentPage].Update(msg)
257 a.pages[a.currentPage] = updated.(util.Model)
258 if a.dialog.HasDialogs() {
259 u, dialogCmd := a.dialog.Update(msg)
260 a.dialog = u.(dialogs.DialogCmp)
261 cmds = append(cmds, dialogCmd)
262 }
263 cmds = append(cmds, cmd)
264 return a, tea.Batch(cmds...)
265}
266
267// handleWindowResize processes window resize events and updates all components.
268func (a *appModel) handleWindowResize(width, height int) tea.Cmd {
269 var cmds []tea.Cmd
270 a.wWidth, a.wHeight = width, height
271 if a.showingFullHelp {
272 height -= 5
273 } else {
274 height -= 2
275 }
276 a.width, a.height = width, height
277 // Update status bar
278 s, cmd := a.status.Update(tea.WindowSizeMsg{Width: width, Height: height})
279 a.status = s.(status.StatusCmp)
280 cmds = append(cmds, cmd)
281
282 // Update the current page
283 for p, page := range a.pages {
284 updated, pageCmd := page.Update(tea.WindowSizeMsg{Width: width, Height: height})
285 a.pages[p] = updated.(util.Model)
286 cmds = append(cmds, pageCmd)
287 }
288
289 // Update the dialogs
290 dialog, cmd := a.dialog.Update(tea.WindowSizeMsg{Width: width, Height: height})
291 a.dialog = dialog.(dialogs.DialogCmp)
292 cmds = append(cmds, cmd)
293
294 return tea.Batch(cmds...)
295}
296
297// handleKeyPressMsg processes keyboard input and routes to appropriate handlers.
298func (a *appModel) handleKeyPressMsg(msg tea.KeyPressMsg) tea.Cmd {
299 switch {
300 // completions
301 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Up):
302 u, cmd := a.completions.Update(msg)
303 a.completions = u.(completions.Completions)
304 return cmd
305
306 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Down):
307 u, cmd := a.completions.Update(msg)
308 a.completions = u.(completions.Completions)
309 return cmd
310 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Select):
311 u, cmd := a.completions.Update(msg)
312 a.completions = u.(completions.Completions)
313 return cmd
314 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Cancel):
315 u, cmd := a.completions.Update(msg)
316 a.completions = u.(completions.Completions)
317 return cmd
318 // help
319 case key.Matches(msg, a.keyMap.Help):
320 a.status.ToggleFullHelp()
321 a.showingFullHelp = !a.showingFullHelp
322 return a.handleWindowResize(a.wWidth, a.wHeight)
323 // dialogs
324 case key.Matches(msg, a.keyMap.Quit):
325 if a.dialog.ActiveDialogID() == quit.QuitDialogID {
326 return tea.Quit
327 }
328 return util.CmdHandler(dialogs.OpenDialogMsg{
329 Model: quit.NewQuitDialog(),
330 })
331
332 case key.Matches(msg, a.keyMap.Commands):
333 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
334 return util.CmdHandler(dialogs.CloseDialogMsg{})
335 }
336 if a.dialog.HasDialogs() {
337 return nil
338 }
339 return util.CmdHandler(dialogs.OpenDialogMsg{
340 Model: commands.NewCommandDialog(a.selectedSessionID),
341 })
342 case key.Matches(msg, a.keyMap.Sessions):
343 if a.dialog.ActiveDialogID() == sessions.SessionsDialogID {
344 return util.CmdHandler(dialogs.CloseDialogMsg{})
345 }
346 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() != commands.CommandsDialogID {
347 return nil
348 }
349 var cmds []tea.Cmd
350 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
351 // If the commands dialog is open, close it first
352 cmds = append(cmds, util.CmdHandler(dialogs.CloseDialogMsg{}))
353 }
354 cmds = append(cmds,
355 func() tea.Msg {
356 allSessions, _ := a.app.Sessions.List(context.Background())
357 return dialogs.OpenDialogMsg{
358 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
359 }
360 },
361 )
362 return tea.Sequence(cmds...)
363 default:
364 if a.dialog.HasDialogs() {
365 u, dialogCmd := a.dialog.Update(msg)
366 a.dialog = u.(dialogs.DialogCmp)
367 return dialogCmd
368 } else {
369 updated, cmd := a.pages[a.currentPage].Update(msg)
370 a.pages[a.currentPage] = updated.(util.Model)
371 return cmd
372 }
373 }
374}
375
376// moveToPage handles navigation between different pages in the application.
377func (a *appModel) moveToPage(pageID page.PageID) tea.Cmd {
378 if a.app.CoderAgent.IsBusy() {
379 // TODO: maybe remove this : For now we don't move to any page if the agent is busy
380 return util.ReportWarn("Agent is busy, please wait...")
381 }
382
383 var cmds []tea.Cmd
384 if _, ok := a.loadedPages[pageID]; !ok {
385 cmd := a.pages[pageID].Init()
386 cmds = append(cmds, cmd)
387 a.loadedPages[pageID] = true
388 }
389 a.previousPage = a.currentPage
390 a.currentPage = pageID
391 if sizable, ok := a.pages[a.currentPage].(layout.Sizeable); ok {
392 cmd := sizable.SetSize(a.width, a.height)
393 cmds = append(cmds, cmd)
394 }
395
396 return tea.Batch(cmds...)
397}
398
399// View renders the complete application interface including pages, dialogs, and overlays.
400func (a *appModel) View() tea.View {
401 page := a.pages[a.currentPage]
402 if withHelp, ok := page.(core.KeyMapHelp); ok {
403 a.status.SetKeyMap(withHelp.Help())
404 }
405 pageView := page.View()
406 components := []string{
407 pageView,
408 }
409 components = append(components, a.status.View())
410
411 appView := lipgloss.JoinVertical(lipgloss.Top, components...)
412 layers := []*lipgloss.Layer{
413 lipgloss.NewLayer(appView),
414 }
415 if a.dialog.HasDialogs() {
416 layers = append(
417 layers,
418 a.dialog.GetLayers()...,
419 )
420 }
421
422 var cursor *tea.Cursor
423 if v, ok := page.(util.Cursor); ok {
424 cursor = v.Cursor()
425 }
426 activeView := a.dialog.ActiveModel()
427 if activeView != nil {
428 cursor = nil // Reset cursor if a dialog is active unless it implements util.Cursor
429 if v, ok := activeView.(util.Cursor); ok {
430 cursor = v.Cursor()
431 }
432 }
433
434 if a.completions.Open() && cursor != nil {
435 cmp := a.completions.View()
436 x, y := a.completions.Position()
437 layers = append(
438 layers,
439 lipgloss.NewLayer(cmp).X(x).Y(y),
440 )
441 }
442
443 canvas := lipgloss.NewCanvas(
444 layers...,
445 )
446
447 var view tea.View
448 t := styles.CurrentTheme()
449 view.Layer = canvas
450 view.BackgroundColor = t.BgBase
451 view.Cursor = cursor
452 return view
453}
454
455// New creates and initializes a new TUI application model.
456func New(app *app.App) tea.Model {
457 chatPage := chat.New(app)
458 keyMap := DefaultKeyMap()
459 keyMap.pageBindings = chatPage.Bindings()
460
461 model := &appModel{
462 currentPage: chat.ChatPageID,
463 app: app,
464 status: status.NewStatusCmp(),
465 loadedPages: make(map[page.PageID]bool),
466 keyMap: keyMap,
467
468 pages: map[page.PageID]util.Model{
469 chat.ChatPageID: chatPage,
470 },
471
472 dialog: dialogs.NewDialogCmp(),
473 completions: completions.New(),
474 }
475
476 return model
477}