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/layout"
17 "github.com/charmbracelet/crush/internal/tui/components/core/status"
18 "github.com/charmbracelet/crush/internal/tui/components/dialogs"
19 "github.com/charmbracelet/crush/internal/tui/components/dialogs/commands"
20 "github.com/charmbracelet/crush/internal/tui/components/dialogs/compact"
21 "github.com/charmbracelet/crush/internal/tui/components/dialogs/filepicker"
22 "github.com/charmbracelet/crush/internal/tui/components/dialogs/models"
23 "github.com/charmbracelet/crush/internal/tui/components/dialogs/permissions"
24 "github.com/charmbracelet/crush/internal/tui/components/dialogs/quit"
25 "github.com/charmbracelet/crush/internal/tui/components/dialogs/sessions"
26 "github.com/charmbracelet/crush/internal/tui/page"
27 "github.com/charmbracelet/crush/internal/tui/page/chat"
28 "github.com/charmbracelet/crush/internal/tui/styles"
29 "github.com/charmbracelet/crush/internal/tui/util"
30 "github.com/charmbracelet/lipgloss/v2"
31)
32
33// MouseEventFilter filters mouse events based on the current focus state
34// This is used with tea.WithFilter to prevent mouse scroll events from
35// interfering with typing performance in the editor
36func MouseEventFilter(m tea.Model, msg tea.Msg) tea.Msg {
37 // Only filter mouse events
38 switch msg.(type) {
39 case tea.MouseWheelMsg, tea.MouseMotionMsg:
40 // Check if we have an appModel and if editor is focused
41 if appModel, ok := m.(*appModel); ok {
42 if appModel.currentPage == chat.ChatPageID {
43 if chatPage, ok := appModel.pages[appModel.currentPage].(chat.ChatPage); ok {
44 // If editor is focused (not chatFocused), filter out mouse wheel/motion events
45 if !chatPage.IsChatFocused() {
46 return nil // Filter out the event
47 }
48 }
49 }
50 }
51 }
52 // Allow all other events to pass through
53 return msg
54}
55
56// appModel represents the main application model that manages pages, dialogs, and UI state.
57type appModel struct {
58 wWidth, wHeight int // Window dimensions
59 width, height int
60 keyMap KeyMap
61
62 currentPage page.PageID
63 previousPage page.PageID
64 pages map[page.PageID]util.Model
65 loadedPages map[page.PageID]bool
66
67 // Status
68 status status.StatusCmp
69 showingFullHelp bool
70
71 app *app.App
72
73 dialog dialogs.DialogCmp
74 completions completions.Completions
75
76 // Chat Page Specific
77 selectedSessionID string // The ID of the currently selected session
78}
79
80// Init initializes the application model and returns initial commands.
81func (a appModel) Init() tea.Cmd {
82 var cmds []tea.Cmd
83 cmd := a.pages[a.currentPage].Init()
84 cmds = append(cmds, cmd)
85 a.loadedPages[a.currentPage] = true
86
87 cmd = a.status.Init()
88 cmds = append(cmds, cmd)
89
90 cmds = append(cmds, tea.EnableMouseAllMotion)
91
92 return tea.Batch(cmds...)
93}
94
95// Update handles incoming messages and updates the application state.
96func (a *appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
97 var cmds []tea.Cmd
98 var cmd tea.Cmd
99
100 switch msg := msg.(type) {
101 case tea.KeyboardEnhancementsMsg:
102 return a, nil
103 case tea.WindowSizeMsg:
104 return a, a.handleWindowResize(msg.Width, msg.Height)
105
106 // Completions messages
107 case completions.OpenCompletionsMsg, completions.FilterCompletionsMsg, completions.CloseCompletionsMsg:
108 u, completionCmd := a.completions.Update(msg)
109 a.completions = u.(completions.Completions)
110 return a, completionCmd
111
112 // Dialog messages
113 case dialogs.OpenDialogMsg, dialogs.CloseDialogMsg:
114 u, dialogCmd := a.dialog.Update(msg)
115 a.dialog = u.(dialogs.DialogCmp)
116 return a, dialogCmd
117 case commands.ShowArgumentsDialogMsg:
118 return a, util.CmdHandler(
119 dialogs.OpenDialogMsg{
120 Model: commands.NewCommandArgumentsDialog(
121 msg.CommandID,
122 msg.Content,
123 msg.ArgNames,
124 ),
125 },
126 )
127 // Page change messages
128 case page.PageChangeMsg:
129 return a, a.moveToPage(msg.ID)
130
131 // Status Messages
132 case util.InfoMsg, util.ClearStatusMsg:
133 s, statusCmd := a.status.Update(msg)
134 a.status = s.(status.StatusCmp)
135 cmds = append(cmds, statusCmd)
136 return a, tea.Batch(cmds...)
137
138 // Session
139 case cmpChat.SessionSelectedMsg:
140 a.selectedSessionID = msg.ID
141 case cmpChat.SessionClearedMsg:
142 a.selectedSessionID = ""
143 // Commands
144 case commands.SwitchSessionsMsg:
145 return a, func() tea.Msg {
146 allSessions, _ := a.app.Sessions.List(context.Background())
147 return dialogs.OpenDialogMsg{
148 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
149 }
150 }
151
152 case commands.SwitchModelMsg:
153 return a, util.CmdHandler(
154 dialogs.OpenDialogMsg{
155 Model: models.NewModelDialogCmp(),
156 },
157 )
158 // Compact
159 case commands.CompactMsg:
160 return a, util.CmdHandler(dialogs.OpenDialogMsg{
161 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, msg.SessionID, true),
162 })
163
164 // Model Switch
165 case models.ModelSelectedMsg:
166 config.Get().UpdatePreferredModel(msg.ModelType, msg.Model)
167
168 // Update the agent with the new model/provider configuration
169 if err := a.app.UpdateAgentModel(); err != nil {
170 return a, util.ReportError(fmt.Errorf("model changed to %s but failed to update agent: %v", msg.Model.Model, err))
171 }
172
173 modelTypeName := "large"
174 if msg.ModelType == config.SelectedModelTypeSmall {
175 modelTypeName = "small"
176 }
177 return a, util.ReportInfo(fmt.Sprintf("%s model changed to %s", modelTypeName, msg.Model.Model))
178
179 // File Picker
180 case chat.OpenFilePickerMsg:
181 if a.dialog.ActiveDialogID() == filepicker.FilePickerID {
182 // If the commands dialog is already open, close it
183 return a, util.CmdHandler(dialogs.CloseDialogMsg{})
184 }
185 return a, util.CmdHandler(dialogs.OpenDialogMsg{
186 Model: filepicker.NewFilePickerCmp(),
187 })
188 // Permissions
189 case pubsub.Event[permission.PermissionRequest]:
190 return a, util.CmdHandler(dialogs.OpenDialogMsg{
191 Model: permissions.NewPermissionDialogCmp(msg.Payload),
192 })
193 case permissions.PermissionResponseMsg:
194 switch msg.Action {
195 case permissions.PermissionAllow:
196 a.app.Permissions.Grant(msg.Permission)
197 case permissions.PermissionAllowForSession:
198 a.app.Permissions.GrantPersistent(msg.Permission)
199 case permissions.PermissionDeny:
200 a.app.Permissions.Deny(msg.Permission)
201 }
202 return a, nil
203 // Agent Events
204 case pubsub.Event[agent.AgentEvent]:
205 payload := msg.Payload
206
207 // Forward agent events to dialogs
208 if a.dialog.HasDialogs() && a.dialog.ActiveDialogID() == compact.CompactDialogID {
209 u, dialogCmd := a.dialog.Update(payload)
210 a.dialog = u.(dialogs.DialogCmp)
211 cmds = append(cmds, dialogCmd)
212 }
213
214 // Handle auto-compact logic
215 if payload.Done && payload.Type == agent.AgentEventTypeResponse && a.selectedSessionID != "" {
216 // Get current session to check token usage
217 session, err := a.app.Sessions.Get(context.Background(), a.selectedSessionID)
218 if err == nil {
219 model := a.app.CoderAgent.Model()
220 contextWindow := model.ContextWindow
221 tokens := session.CompletionTokens + session.PromptTokens
222 if (tokens >= int64(float64(contextWindow)*0.95)) && !config.Get().Options.DisableAutoSummarize { // Show compact confirmation dialog
223 cmds = append(cmds, util.CmdHandler(dialogs.OpenDialogMsg{
224 Model: compact.NewCompactDialogCmp(a.app.CoderAgent, a.selectedSessionID, false),
225 }))
226 }
227 }
228 }
229
230 return a, tea.Batch(cmds...)
231 // Key Press Messages
232 case tea.KeyPressMsg:
233 return a, a.handleKeyPressMsg(msg)
234 }
235 s, _ := a.status.Update(msg)
236 a.status = s.(status.StatusCmp)
237 updated, cmd := a.pages[a.currentPage].Update(msg)
238 a.pages[a.currentPage] = updated.(util.Model)
239 if a.dialog.HasDialogs() {
240 u, dialogCmd := a.dialog.Update(msg)
241 a.dialog = u.(dialogs.DialogCmp)
242 cmds = append(cmds, dialogCmd)
243 }
244 cmds = append(cmds, cmd)
245 return a, tea.Batch(cmds...)
246}
247
248// handleWindowResize processes window resize events and updates all components.
249func (a *appModel) handleWindowResize(width, height int) tea.Cmd {
250 var cmds []tea.Cmd
251 a.wWidth, a.wHeight = width, height
252 if a.showingFullHelp {
253 height -= 4
254 } else {
255 height -= 2
256 }
257 a.width, a.height = width, height
258 // Update status bar
259 s, cmd := a.status.Update(tea.WindowSizeMsg{Width: width, Height: height})
260 a.status = s.(status.StatusCmp)
261 cmds = append(cmds, cmd)
262
263 // Update the current page
264 for p, page := range a.pages {
265 updated, pageCmd := page.Update(tea.WindowSizeMsg{Width: width, Height: height})
266 a.pages[p] = updated.(util.Model)
267 cmds = append(cmds, pageCmd)
268 }
269
270 // Update the dialogs
271 dialog, cmd := a.dialog.Update(tea.WindowSizeMsg{Width: width, Height: height})
272 a.dialog = dialog.(dialogs.DialogCmp)
273 cmds = append(cmds, cmd)
274
275 return tea.Batch(cmds...)
276}
277
278// handleKeyPressMsg processes keyboard input and routes to appropriate handlers.
279func (a *appModel) handleKeyPressMsg(msg tea.KeyPressMsg) tea.Cmd {
280 switch {
281 // completions
282 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Up):
283 u, cmd := a.completions.Update(msg)
284 a.completions = u.(completions.Completions)
285 return cmd
286
287 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Down):
288 u, cmd := a.completions.Update(msg)
289 a.completions = u.(completions.Completions)
290 return cmd
291 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Select):
292 u, cmd := a.completions.Update(msg)
293 a.completions = u.(completions.Completions)
294 return cmd
295 case a.completions.Open() && key.Matches(msg, a.completions.KeyMap().Cancel):
296 u, cmd := a.completions.Update(msg)
297 a.completions = u.(completions.Completions)
298 return cmd
299 // help
300 case key.Matches(msg, a.keyMap.Help):
301 a.status.ToggleFullHelp()
302 a.showingFullHelp = !a.showingFullHelp
303 return a.handleWindowResize(a.wWidth, a.wHeight)
304 // dialogs
305 case key.Matches(msg, a.keyMap.Quit):
306 if a.dialog.ActiveDialogID() == quit.QuitDialogID {
307 // if the quit dialog is already open, close the app
308 return tea.Quit
309 }
310 return util.CmdHandler(dialogs.OpenDialogMsg{
311 Model: quit.NewQuitDialog(),
312 })
313
314 case key.Matches(msg, a.keyMap.Commands):
315 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
316 // If the commands dialog is already open, close it
317 return util.CmdHandler(dialogs.CloseDialogMsg{})
318 }
319 return util.CmdHandler(dialogs.OpenDialogMsg{
320 Model: commands.NewCommandDialog(a.selectedSessionID),
321 })
322 case key.Matches(msg, a.keyMap.Sessions):
323 if a.dialog.ActiveDialogID() == sessions.SessionsDialogID {
324 // If the sessions dialog is already open, close it
325 return util.CmdHandler(dialogs.CloseDialogMsg{})
326 }
327 var cmds []tea.Cmd
328 if a.dialog.ActiveDialogID() == commands.CommandsDialogID {
329 // If the commands dialog is open, close it first
330 cmds = append(cmds, util.CmdHandler(dialogs.CloseDialogMsg{}))
331 }
332 cmds = append(cmds,
333 func() tea.Msg {
334 allSessions, _ := a.app.Sessions.List(context.Background())
335 return dialogs.OpenDialogMsg{
336 Model: sessions.NewSessionDialogCmp(allSessions, a.selectedSessionID),
337 }
338 },
339 )
340 return tea.Sequence(cmds...)
341 default:
342 if a.dialog.HasDialogs() {
343 u, dialogCmd := a.dialog.Update(msg)
344 a.dialog = u.(dialogs.DialogCmp)
345 return dialogCmd
346 } else {
347 updated, cmd := a.pages[a.currentPage].Update(msg)
348 a.pages[a.currentPage] = updated.(util.Model)
349 return cmd
350 }
351 }
352}
353
354// moveToPage handles navigation between different pages in the application.
355func (a *appModel) moveToPage(pageID page.PageID) tea.Cmd {
356 if a.app.CoderAgent.IsBusy() {
357 // TODO: maybe remove this : For now we don't move to any page if the agent is busy
358 return util.ReportWarn("Agent is busy, please wait...")
359 }
360
361 var cmds []tea.Cmd
362 if _, ok := a.loadedPages[pageID]; !ok {
363 cmd := a.pages[pageID].Init()
364 cmds = append(cmds, cmd)
365 a.loadedPages[pageID] = true
366 }
367 a.previousPage = a.currentPage
368 a.currentPage = pageID
369 if sizable, ok := a.pages[a.currentPage].(layout.Sizeable); ok {
370 cmd := sizable.SetSize(a.width, a.height)
371 cmds = append(cmds, cmd)
372 }
373
374 return tea.Batch(cmds...)
375}
376
377// View renders the complete application interface including pages, dialogs, and overlays.
378func (a *appModel) View() tea.View {
379 page := a.pages[a.currentPage]
380 if withHelp, ok := page.(layout.Help); ok {
381 a.keyMap.pageBindings = withHelp.Bindings()
382 }
383 a.status.SetKeyMap(a.keyMap)
384 pageView := page.View()
385 components := []string{
386 pageView,
387 }
388 components = append(components, a.status.View())
389
390 appView := lipgloss.JoinVertical(lipgloss.Top, components...)
391 layers := []*lipgloss.Layer{
392 lipgloss.NewLayer(appView),
393 }
394 if a.dialog.HasDialogs() {
395 layers = append(
396 layers,
397 a.dialog.GetLayers()...,
398 )
399 }
400
401 var cursor *tea.Cursor
402 if v, ok := page.(util.Cursor); ok {
403 cursor = v.Cursor()
404 }
405 activeView := a.dialog.ActiveModel()
406 if activeView != nil {
407 cursor = nil // Reset cursor if a dialog is active unless it implements util.Cursor
408 if v, ok := activeView.(util.Cursor); ok {
409 cursor = v.Cursor()
410 }
411 }
412
413 if a.completions.Open() && cursor != nil {
414 cmp := a.completions.View()
415 x, y := a.completions.Position()
416 layers = append(
417 layers,
418 lipgloss.NewLayer(cmp).X(x).Y(y),
419 )
420 }
421
422 canvas := lipgloss.NewCanvas(
423 layers...,
424 )
425
426 var view tea.View
427 t := styles.CurrentTheme()
428 view.Layer = canvas
429 view.BackgroundColor = t.BgBase
430 view.Cursor = cursor
431 return view
432}
433
434// New creates and initializes a new TUI application model.
435func New(app *app.App) tea.Model {
436 chatPage := chat.New(app)
437 keyMap := DefaultKeyMap()
438 keyMap.pageBindings = chatPage.Bindings()
439
440 model := &appModel{
441 currentPage: chat.ChatPageID,
442 app: app,
443 status: status.NewStatusCmp(keyMap),
444 loadedPages: make(map[page.PageID]bool),
445 keyMap: keyMap,
446
447 pages: map[page.PageID]util.Model{
448 chat.ChatPageID: chatPage,
449 },
450
451 dialog: dialogs.NewDialogCmp(),
452 completions: completions.New(),
453 }
454
455 return model
456}