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/completions"
16 "github.com/charmbracelet/crush/internal/tui/components/core"
17 "github.com/charmbracelet/crush/internal/tui/components/core/layout"
18 "github.com/charmbracelet/crush/internal/tui/components/core/status"
19 "github.com/charmbracelet/crush/internal/tui/components/dialogs"
20 "github.com/charmbracelet/crush/internal/tui/components/dialogs/commands"
21 "github.com/charmbracelet/crush/internal/tui/components/dialogs/compact"
22 "github.com/charmbracelet/crush/internal/tui/components/dialogs/filepicker"
23 "github.com/charmbracelet/crush/internal/tui/components/dialogs/models"
24 "github.com/charmbracelet/crush/internal/tui/components/dialogs/permissions"
25 "github.com/charmbracelet/crush/internal/tui/components/dialogs/quit"
26 "github.com/charmbracelet/crush/internal/tui/components/dialogs/sessions"
27 "github.com/charmbracelet/crush/internal/tui/page"
28 "github.com/charmbracelet/crush/internal/tui/page/chat"
29 "github.com/charmbracelet/crush/internal/tui/styles"
30 "github.com/charmbracelet/crush/internal/tui/util"
31 "github.com/charmbracelet/lipgloss/v2"
32)
33
34// MouseEventFilter filters mouse events based on the current focus state
35// This is used with tea.WithFilter to prevent mouse scroll events from
36// interfering with typing performance in the editor
37func MouseEventFilter(m tea.Model, msg tea.Msg) tea.Msg {
38 // Only filter mouse events
39 switch msg.(type) {
40 case tea.MouseWheelMsg, tea.MouseMotionMsg:
41 // Check if we have an appModel and if editor is focused
42 if appModel, ok := m.(*appModel); ok {
43 if appModel.currentPage == chat.ChatPageID {
44 if chatPage, ok := appModel.pages[appModel.currentPage].(chat.ChatPage); ok {
45 // If editor is focused (not chatFocused), filter out mouse wheel/motion events
46 if !chatPage.IsChatFocused() {
47 return nil // Filter out the event
48 }
49 }
50 }
51 }
52 }
53 // Allow all other events to pass through
54 return msg
55}
56
57// appModel represents the main application model that manages pages, dialogs, and UI state.
58type appModel struct {
59 wWidth, wHeight int // Window dimensions
60 width, height int
61 keyMap KeyMap
62
63 currentPage page.PageID
64 previousPage page.PageID
65 pages map[page.PageID]util.Model
66 loadedPages map[page.PageID]bool
67
68 // Status
69 status status.StatusCmp
70 showingFullHelp bool
71
72 app *app.App
73
74 dialog dialogs.DialogCmp
75 completions completions.Completions
76
77 // Chat Page Specific
78 selectedSessionID string // The ID of the currently selected session
79}
80
81// Init initializes the application model and returns initial commands.
82func (a appModel) Init() tea.Cmd {
83 var cmds []tea.Cmd
84 cmd := a.pages[a.currentPage].Init()
85 cmds = append(cmds, cmd)
86 a.loadedPages[a.currentPage] = true
87
88 cmd = a.status.Init()
89 cmds = append(cmds, cmd)
90
91 cmds = append(cmds, tea.EnableMouseAllMotion)
92
93 return tea.Batch(cmds...)
94}
95
96// Update handles incoming messages and updates the application state.
97func (a *appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
98 var cmds []tea.Cmd
99 var cmd tea.Cmd
100
101 switch msg := msg.(type) {
102 case tea.KeyboardEnhancementsMsg:
103 for id, page := range a.pages {
104 m, pageCmd := page.Update(msg)
105 a.pages[id] = m.(util.Model)
106 if pageCmd != nil {
107 cmds = append(cmds, pageCmd)
108 }
109 }
110 return a, tea.Batch(cmds...)
111 case tea.WindowSizeMsg:
112 return a, a.handleWindowResize(msg.Width, msg.Height)
113
114 // Completions messages
115 case completions.OpenCompletionsMsg, completions.FilterCompletionsMsg, completions.CloseCompletionsMsg:
116 u, completionCmd := a.completions.Update(msg)
117 a.completions = u.(completions.Completions)
118 return a, completionCmd
119
120 // Dialog messages
121 case dialogs.OpenDialogMsg, dialogs.CloseDialogMsg:
122 u, dialogCmd := a.dialog.Update(msg)
123 a.dialog = u.(dialogs.DialogCmp)
124 return a, dialogCmd
125 case commands.ShowArgumentsDialogMsg:
126 return a, util.CmdHandler(
127 dialogs.OpenDialogMsg{
128 Model: commands.NewCommandArgumentsDialog(
129 msg.CommandID,
130 msg.Content,
131 msg.ArgNames,
132 ),
133 },
134 )
135 // Page change messages
136 case page.PageChangeMsg:
137 return a, a.moveToPage(msg.ID)
138
139 // Status Messages
140 case util.InfoMsg, util.ClearStatusMsg:
141 s, statusCmd := a.status.Update(msg)
142 a.status = s.(status.StatusCmp)
143 cmds = append(cmds, statusCmd)
144 return a, tea.Batch(cmds...)
145
146 // Session
147 case cmpChat.SessionSelectedMsg:
148 a.selectedSessionID = msg.ID
149 case cmpChat.SessionClearedMsg:
150 a.selectedSessionID = ""
151 // Commands
152 case commands.SwitchSessionsMsg:
153 return a, func() tea.Msg {
154 allSessions, _ := a.app.Sessions.List(context.Background())
155 return dialogs.OpenDialogMsg{
156 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
157 }
158 }
159
160 case commands.SwitchModelMsg:
161 return a, util.CmdHandler(
162 dialogs.OpenDialogMsg{
163 Model: models.NewModelDialogCmp(),
164 },
165 )
166 // Compact
167 case commands.CompactMsg:
168 return a, util.CmdHandler(dialogs.OpenDialogMsg{
169 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, msg.SessionID, true),
170 })
171
172 // Model Switch
173 case models.ModelSelectedMsg:
174 config.Get().UpdatePreferredModel(msg.ModelType, msg.Model)
175
176 // Update the agent with the new model/provider configuration
177 if err := a.app.UpdateAgentModel(); err != nil {
178 return a, util.ReportError(fmt.Errorf("model changed to %s but failed to update agent: %v", msg.Model.Model, err))
179 }
180
181 modelTypeName := "large"
182 if msg.ModelType == config.SelectedModelTypeSmall {
183 modelTypeName = "small"
184 }
185 return a, util.ReportInfo(fmt.Sprintf("%s model changed to %s", modelTypeName, msg.Model.Model))
186
187 // File Picker
188 case chat.OpenFilePickerMsg:
189 if a.dialog.ActiveDialogID() == filepicker.FilePickerID {
190 // If the commands dialog is already open, close it
191 return a, util.CmdHandler(dialogs.CloseDialogMsg{})
192 }
193 return a, util.CmdHandler(dialogs.OpenDialogMsg{
194 Model: filepicker.NewFilePickerCmp(),
195 })
196 // Permissions
197 case pubsub.Event[permission.PermissionRequest]:
198 return a, util.CmdHandler(dialogs.OpenDialogMsg{
199 Model: permissions.NewPermissionDialogCmp(msg.Payload),
200 })
201 case permissions.PermissionResponseMsg:
202 switch msg.Action {
203 case permissions.PermissionAllow:
204 a.app.Permissions.Grant(msg.Permission)
205 case permissions.PermissionAllowForSession:
206 a.app.Permissions.GrantPersistent(msg.Permission)
207 case permissions.PermissionDeny:
208 a.app.Permissions.Deny(msg.Permission)
209 }
210 return a, nil
211 // Agent Events
212 case pubsub.Event[agent.AgentEvent]:
213 payload := msg.Payload
214
215 // Forward agent events to dialogs
216 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() == compact.CompactDialogID {
217 u, dialogCmd := a.dialog.Update(payload)
218 a.dialog = u.(dialogs.DialogCmp)
219 cmds = append(cmds, dialogCmd)
220 }
221
222 // Handle auto-compact logic
223 if payload.Done && payload.Type == agent.AgentEventTypeResponse && a.selectedSessionID != "" {
224 // Get current session to check token usage
225 session, err := a.app.Sessions.Get(context.Background(), a.selectedSessionID)
226 if err == nil {
227 model := a.app.CoderAgent.Model()
228 contextWindow := model.ContextWindow
229 tokens := session.CompletionTokens + session.PromptTokens
230 if (tokens >= int64(float64(contextWindow)*0.95)) && !config.Get().Options.DisableAutoSummarize { // Show compact confirmation dialog
231 cmds = append(cmds, util.CmdHandler(dialogs.OpenDialogMsg{
232 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, a.selectedSessionID, false),
233 }))
234 }
235 }
236 }
237
238 return a, tea.Batch(cmds...)
239 // Key Press Messages
240 case tea.KeyPressMsg:
241 return a, a.handleKeyPressMsg(msg)
242 }
243 s, _ := a.status.Update(msg)
244 a.status = s.(status.StatusCmp)
245 updated, cmd := a.pages[a.currentPage].Update(msg)
246 a.pages[a.currentPage] = updated.(util.Model)
247 if a.dialog.HasDialogs() {
248 u, dialogCmd := a.dialog.Update(msg)
249 a.dialog = u.(dialogs.DialogCmp)
250 cmds = append(cmds, dialogCmd)
251 }
252 cmds = append(cmds, cmd)
253 return a, tea.Batch(cmds...)
254}
255
256// handleWindowResize processes window resize events and updates all components.
257func (a *appModel) handleWindowResize(width, height int) tea.Cmd {
258 var cmds []tea.Cmd
259 a.wWidth, a.wHeight = width, height
260 if a.showingFullHelp {
261 height -= 5
262 } else {
263 height -= 2
264 }
265 a.width, a.height = width, height
266 // Update status bar
267 s, cmd := a.status.Update(tea.WindowSizeMsg{Width: width, Height: height})
268 a.status = s.(status.StatusCmp)
269 cmds = append(cmds, cmd)
270
271 // Update the current page
272 for p, page := range a.pages {
273 updated, pageCmd := page.Update(tea.WindowSizeMsg{Width: width, Height: height})
274 a.pages[p] = updated.(util.Model)
275 cmds = append(cmds, pageCmd)
276 }
277
278 // Update the dialogs
279 dialog, cmd := a.dialog.Update(tea.WindowSizeMsg{Width: width, Height: height})
280 a.dialog = dialog.(dialogs.DialogCmp)
281 cmds = append(cmds, cmd)
282
283 return tea.Batch(cmds...)
284}
285
286// handleKeyPressMsg processes keyboard input and routes to appropriate handlers.
287func (a *appModel) handleKeyPressMsg(msg tea.KeyPressMsg) tea.Cmd {
288 switch {
289 // completions
290 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Up):
291 u, cmd := a.completions.Update(msg)
292 a.completions = u.(completions.Completions)
293 return cmd
294
295 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Down):
296 u, cmd := a.completions.Update(msg)
297 a.completions = u.(completions.Completions)
298 return cmd
299 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Select):
300 u, cmd := a.completions.Update(msg)
301 a.completions = u.(completions.Completions)
302 return cmd
303 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Cancel):
304 u, cmd := a.completions.Update(msg)
305 a.completions = u.(completions.Completions)
306 return cmd
307 // help
308 case key.Matches(msg, a.keyMap.Help):
309 a.status.ToggleFullHelp()
310 a.showingFullHelp = !a.showingFullHelp
311 return a.handleWindowResize(a.wWidth, a.wHeight)
312 // dialogs
313 case key.Matches(msg, a.keyMap.Quit):
314 if a.dialog.ActiveDialogID() == quit.QuitDialogID {
315 // if the quit dialog is already open, close the app
316 return tea.Quit
317 }
318 return util.CmdHandler(dialogs.OpenDialogMsg{
319 Model: quit.NewQuitDialog(),
320 })
321
322 case key.Matches(msg, a.keyMap.Commands):
323 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
324 // If the commands dialog is already open, close it
325 return util.CmdHandler(dialogs.CloseDialogMsg{})
326 }
327 return util.CmdHandler(dialogs.OpenDialogMsg{
328 Model: commands.NewCommandDialog(a.selectedSessionID),
329 })
330 case key.Matches(msg, a.keyMap.Sessions):
331 if a.dialog.ActiveDialogID() == sessions.SessionsDialogID {
332 // If the sessions dialog is already open, close it
333 return util.CmdHandler(dialogs.CloseDialogMsg{})
334 }
335 var cmds []tea.Cmd
336 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
337 // If the commands dialog is open, close it first
338 cmds = append(cmds, util.CmdHandler(dialogs.CloseDialogMsg{}))
339 }
340 cmds = append(cmds,
341 func() tea.Msg {
342 allSessions, _ := a.app.Sessions.List(context.Background())
343 return dialogs.OpenDialogMsg{
344 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
345 }
346 },
347 )
348 return tea.Sequence(cmds...)
349 default:
350 if a.dialog.HasDialogs() {
351 u, dialogCmd := a.dialog.Update(msg)
352 a.dialog = u.(dialogs.DialogCmp)
353 return dialogCmd
354 } else {
355 updated, cmd := a.pages[a.currentPage].Update(msg)
356 a.pages[a.currentPage] = updated.(util.Model)
357 return cmd
358 }
359 }
360}
361
362// moveToPage handles navigation between different pages in the application.
363func (a *appModel) moveToPage(pageID page.PageID) tea.Cmd {
364 if a.app.CoderAgent.IsBusy() {
365 // TODO: maybe remove this : For now we don't move to any page if the agent is busy
366 return util.ReportWarn("Agent is busy, please wait...")
367 }
368
369 var cmds []tea.Cmd
370 if _, ok := a.loadedPages[pageID]; !ok {
371 cmd := a.pages[pageID].Init()
372 cmds = append(cmds, cmd)
373 a.loadedPages[pageID] = true
374 }
375 a.previousPage = a.currentPage
376 a.currentPage = pageID
377 if sizable, ok := a.pages[a.currentPage].(layout.Sizeable); ok {
378 cmd := sizable.SetSize(a.width, a.height)
379 cmds = append(cmds, cmd)
380 }
381
382 return tea.Batch(cmds...)
383}
384
385// View renders the complete application interface including pages, dialogs, and overlays.
386func (a *appModel) View() tea.View {
387 page := a.pages[a.currentPage]
388 if withHelp, ok := page.(core.KeyMapHelp); ok {
389 a.status.SetKeyMap(withHelp.Help())
390 }
391 pageView := page.View()
392 components := []string{
393 pageView,
394 }
395 components = append(components, a.status.View())
396
397 appView := lipgloss.JoinVertical(lipgloss.Top, components...)
398 layers := []*lipgloss.Layer{
399 lipgloss.NewLayer(appView),
400 }
401 if a.dialog.HasDialogs() {
402 layers = append(
403 layers,
404 a.dialog.GetLayers()...,
405 )
406 }
407
408 var cursor *tea.Cursor
409 if v, ok := page.(util.Cursor); ok {
410 cursor = v.Cursor()
411 }
412 activeView := a.dialog.ActiveModel()
413 if activeView != nil {
414 cursor = nil // Reset cursor if a dialog is active unless it implements util.Cursor
415 if v, ok := activeView.(util.Cursor); ok {
416 cursor = v.Cursor()
417 }
418 }
419
420 if a.completions.Open() && cursor != nil {
421 cmp := a.completions.View()
422 x, y := a.completions.Position()
423 layers = append(
424 layers,
425 lipgloss.NewLayer(cmp).X(x).Y(y),
426 )
427 }
428
429 canvas := lipgloss.NewCanvas(
430 layers...,
431 )
432
433 var view tea.View
434 t := styles.CurrentTheme()
435 view.Layer = canvas
436 view.BackgroundColor = t.BgBase
437 view.Cursor = cursor
438 return view
439}
440
441// New creates and initializes a new TUI application model.
442func New(app *app.App) tea.Model {
443 chatPage := chat.New(app)
444 keyMap := DefaultKeyMap()
445 keyMap.pageBindings = chatPage.Bindings()
446
447 model := &appModel{
448 currentPage: chat.ChatPageID,
449 app: app,
450 status: status.NewStatusCmp(),
451 loadedPages: make(map[page.PageID]bool),
452 keyMap: keyMap,
453
454 pages: map[page.PageID]util.Model{
455 chat.ChatPageID: chatPage,
456 },
457
458 dialog: dialogs.NewDialogCmp(),
459 completions: completions.New(),
460 }
461
462 return model
463}