1package editor
2
3import (
4 "context"
5 "fmt"
6 "math/rand"
7 "net/http"
8 "os"
9 "os/exec"
10 "path/filepath"
11 "runtime"
12 "slices"
13 "strings"
14 "unicode"
15
16 "charm.land/bubbles/v2/key"
17 "charm.land/bubbles/v2/textarea"
18 tea "charm.land/bubbletea/v2"
19 "charm.land/lipgloss/v2"
20 "git.secluded.site/crush/internal/app"
21 "git.secluded.site/crush/internal/fsext"
22 "git.secluded.site/crush/internal/message"
23 "git.secluded.site/crush/internal/session"
24 "git.secluded.site/crush/internal/tui/components/chat"
25 "git.secluded.site/crush/internal/tui/components/completions"
26 "git.secluded.site/crush/internal/tui/components/core/layout"
27 "git.secluded.site/crush/internal/tui/components/dialogs"
28 "git.secluded.site/crush/internal/tui/components/dialogs/commands"
29 "git.secluded.site/crush/internal/tui/components/dialogs/filepicker"
30 "git.secluded.site/crush/internal/tui/components/dialogs/quit"
31 "git.secluded.site/crush/internal/tui/styles"
32 "git.secluded.site/crush/internal/tui/util"
33)
34
35type Editor interface {
36 util.Model
37 layout.Sizeable
38 layout.Focusable
39 layout.Help
40 layout.Positional
41
42 SetSession(session session.Session) tea.Cmd
43 IsCompletionsOpen() bool
44 HasAttachments() bool
45 Cursor() *tea.Cursor
46}
47
48type FileCompletionItem struct {
49 Path string // The file path
50}
51
52type editorCmp struct {
53 width int
54 height int
55 x, y int
56 app *app.App
57 session session.Session
58 textarea *textarea.Model
59 attachments []message.Attachment
60 deleteMode bool
61 readyPlaceholder string
62 workingPlaceholder string
63
64 keyMap EditorKeyMap
65
66 // File path completions
67 currentQuery string
68 completionsStartIndex int
69 isCompletionsOpen bool
70}
71
72var DeleteKeyMaps = DeleteAttachmentKeyMaps{
73 AttachmentDeleteMode: key.NewBinding(
74 key.WithKeys("ctrl+r"),
75 key.WithHelp("ctrl+r+{i}", "delete attachment at index i"),
76 ),
77 Escape: key.NewBinding(
78 key.WithKeys("esc", "alt+esc"),
79 key.WithHelp("esc", "cancel delete mode"),
80 ),
81 DeleteAllAttachments: key.NewBinding(
82 key.WithKeys("r"),
83 key.WithHelp("ctrl+r+r", "delete all attachments"),
84 ),
85}
86
87const (
88 maxAttachments = 5
89 maxFileResults = 25
90)
91
92type OpenEditorMsg struct {
93 Text string
94}
95
96func (m *editorCmp) openEditor(value string) tea.Cmd {
97 editor := os.Getenv("EDITOR")
98 if editor == "" {
99 // Use platform-appropriate default editor
100 if runtime.GOOS == "windows" {
101 editor = "notepad"
102 } else {
103 editor = "nvim"
104 }
105 }
106
107 tmpfile, err := os.CreateTemp("", "msg_*.md")
108 if err != nil {
109 return util.ReportError(err)
110 }
111 defer tmpfile.Close() //nolint:errcheck
112 if _, err := tmpfile.WriteString(value); err != nil {
113 return util.ReportError(err)
114 }
115 c := exec.CommandContext(context.TODO(), editor, tmpfile.Name())
116 c.Stdin = os.Stdin
117 c.Stdout = os.Stdout
118 c.Stderr = os.Stderr
119 return tea.ExecProcess(c, func(err error) tea.Msg {
120 if err != nil {
121 return util.ReportError(err)
122 }
123 content, err := os.ReadFile(tmpfile.Name())
124 if err != nil {
125 return util.ReportError(err)
126 }
127 if len(content) == 0 {
128 return util.ReportWarn("Message is empty")
129 }
130 os.Remove(tmpfile.Name())
131 return OpenEditorMsg{
132 Text: strings.TrimSpace(string(content)),
133 }
134 })
135}
136
137func (m *editorCmp) Init() tea.Cmd {
138 return nil
139}
140
141func (m *editorCmp) send() tea.Cmd {
142 value := m.textarea.Value()
143 value = strings.TrimSpace(value)
144
145 switch value {
146 case "exit", "quit":
147 m.textarea.Reset()
148 return util.CmdHandler(dialogs.OpenDialogMsg{Model: quit.NewQuitDialog()})
149 }
150
151 m.textarea.Reset()
152 attachments := m.attachments
153
154 m.attachments = nil
155 if value == "" {
156 return nil
157 }
158
159 // Change the placeholder when sending a new message.
160 m.randomizePlaceholders()
161
162 return tea.Batch(
163 util.CmdHandler(chat.SendMsg{
164 Text: value,
165 Attachments: attachments,
166 }),
167 )
168}
169
170func (m *editorCmp) repositionCompletions() tea.Msg {
171 x, y := m.completionsPosition()
172 return completions.RepositionCompletionsMsg{X: x, Y: y}
173}
174
175func (m *editorCmp) Update(msg tea.Msg) (util.Model, tea.Cmd) {
176 var cmd tea.Cmd
177 var cmds []tea.Cmd
178 switch msg := msg.(type) {
179 case tea.WindowSizeMsg:
180 return m, m.repositionCompletions
181 case filepicker.FilePickedMsg:
182 if len(m.attachments) >= maxAttachments {
183 return m, util.ReportError(fmt.Errorf("cannot add more than %d images", maxAttachments))
184 }
185 m.attachments = append(m.attachments, msg.Attachment)
186 return m, nil
187 case completions.CompletionsOpenedMsg:
188 m.isCompletionsOpen = true
189 case completions.CompletionsClosedMsg:
190 m.isCompletionsOpen = false
191 m.currentQuery = ""
192 m.completionsStartIndex = 0
193 case completions.SelectCompletionMsg:
194 if !m.isCompletionsOpen {
195 return m, nil
196 }
197 if item, ok := msg.Value.(FileCompletionItem); ok {
198 word := m.textarea.Word()
199 // If the selected item is a file, insert its path into the textarea
200 value := m.textarea.Value()
201 value = value[:m.completionsStartIndex] + // Remove the current query
202 item.Path + // Insert the file path
203 value[m.completionsStartIndex+len(word):] // Append the rest of the value
204 // XXX: This will always move the cursor to the end of the textarea.
205 m.textarea.SetValue(value)
206 m.textarea.MoveToEnd()
207 if !msg.Insert {
208 m.isCompletionsOpen = false
209 m.currentQuery = ""
210 m.completionsStartIndex = 0
211 }
212 }
213
214 case commands.OpenExternalEditorMsg:
215 if m.app.AgentCoordinator.IsSessionBusy(m.session.ID) {
216 return m, util.ReportWarn("Agent is working, please wait...")
217 }
218 if m.app.AgentCoordinator != nil && m.app.AgentCoordinator.HasPendingCompletionNotification(m.session.ID) {
219 m.app.AgentCoordinator.CancelCompletionNotification(m.session.ID)
220 }
221 return m, m.openEditor(m.textarea.Value())
222 case OpenEditorMsg:
223 m.textarea.SetValue(msg.Text)
224 m.textarea.MoveToEnd()
225 case tea.PasteMsg:
226 // Interaction: cancel any pending turn-end notification for this session.
227 if m.app.AgentCoordinator != nil && m.app.AgentCoordinator.HasPendingCompletionNotification(m.session.ID) {
228 m.app.AgentCoordinator.CancelCompletionNotification(m.session.ID)
229 }
230 path := strings.ReplaceAll(msg.Content, "\\ ", " ")
231 // try to get an image
232 path, err := filepath.Abs(strings.TrimSpace(path))
233 if err != nil {
234 m.textarea, cmd = m.textarea.Update(msg)
235 return m, cmd
236 }
237 isAllowedType := false
238 for _, ext := range filepicker.AllowedTypes {
239 if strings.HasSuffix(path, ext) {
240 isAllowedType = true
241 break
242 }
243 }
244 if !isAllowedType {
245 m.textarea, cmd = m.textarea.Update(msg)
246 return m, cmd
247 }
248 tooBig, _ := filepicker.IsFileTooBig(path, filepicker.MaxAttachmentSize)
249 if tooBig {
250 m.textarea, cmd = m.textarea.Update(msg)
251 return m, cmd
252 }
253
254 content, err := os.ReadFile(path)
255 if err != nil {
256 m.textarea, cmd = m.textarea.Update(msg)
257 return m, cmd
258 }
259 mimeBufferSize := min(512, len(content))
260 mimeType := http.DetectContentType(content[:mimeBufferSize])
261 fileName := filepath.Base(path)
262 attachment := message.Attachment{FilePath: path, FileName: fileName, MimeType: mimeType, Content: content}
263 return m, util.CmdHandler(filepicker.FilePickedMsg{
264 Attachment: attachment,
265 })
266
267 case commands.ToggleYoloModeMsg:
268 m.setEditorPrompt()
269 return m, nil
270 case tea.KeyPressMsg:
271 // Interaction: cancel any pending turn-end notification for this session.
272 if m.app.AgentCoordinator != nil && m.app.AgentCoordinator.HasPendingCompletionNotification(m.session.ID) {
273 m.app.AgentCoordinator.CancelCompletionNotification(m.session.ID)
274 }
275 cur := m.textarea.Cursor()
276 curIdx := m.textarea.Width()*cur.Y + cur.X
277 switch {
278 // Open command palette when "/" is pressed on empty prompt
279 case msg.String() == "/" && len(strings.TrimSpace(m.textarea.Value())) == 0:
280 return m, util.CmdHandler(dialogs.OpenDialogMsg{
281 Model: commands.NewCommandDialog(m.session.ID),
282 })
283 // Completions
284 case msg.String() == "@" && !m.isCompletionsOpen &&
285 // only show if beginning of prompt, or if previous char is a space or newline:
286 (len(m.textarea.Value()) == 0 || unicode.IsSpace(rune(m.textarea.Value()[len(m.textarea.Value())-1]))):
287 m.isCompletionsOpen = true
288 m.currentQuery = ""
289 m.completionsStartIndex = curIdx
290 cmds = append(cmds, m.startCompletions)
291 case m.isCompletionsOpen && curIdx <= m.completionsStartIndex:
292 cmds = append(cmds, util.CmdHandler(completions.CloseCompletionsMsg{}))
293 }
294 if key.Matches(msg, DeleteKeyMaps.AttachmentDeleteMode) {
295 m.deleteMode = true
296 return m, nil
297 }
298 if key.Matches(msg, DeleteKeyMaps.DeleteAllAttachments) && m.deleteMode {
299 m.deleteMode = false
300 m.attachments = nil
301 return m, nil
302 }
303 rune := msg.Code
304 if m.deleteMode && unicode.IsDigit(rune) {
305 num := int(rune - '0')
306 m.deleteMode = false
307 if num < 10 && len(m.attachments) > num {
308 if num == 0 {
309 m.attachments = m.attachments[num+1:]
310 } else {
311 m.attachments = slices.Delete(m.attachments, num, num+1)
312 }
313 return m, nil
314 }
315 }
316 if key.Matches(msg, m.keyMap.OpenEditor) {
317 if m.app.AgentCoordinator.IsSessionBusy(m.session.ID) {
318 return m, util.ReportWarn("Agent is working, please wait...")
319 }
320 return m, m.openEditor(m.textarea.Value())
321 }
322 if key.Matches(msg, DeleteKeyMaps.Escape) {
323 m.deleteMode = false
324 return m, nil
325 }
326 if key.Matches(msg, m.keyMap.Newline) {
327 m.textarea.InsertRune('\n')
328 cmds = append(cmds, util.CmdHandler(completions.CloseCompletionsMsg{}))
329 }
330 // Handle Enter key
331 if m.textarea.Focused() && key.Matches(msg, m.keyMap.SendMessage) {
332 value := m.textarea.Value()
333 if strings.HasSuffix(value, "\\") {
334 // If the last character is a backslash, remove it and add a newline.
335 m.textarea.SetValue(strings.TrimSuffix(value, "\\"))
336 } else {
337 // Otherwise, send the message
338 return m, m.send()
339 }
340 }
341 }
342
343 m.textarea, cmd = m.textarea.Update(msg)
344 cmds = append(cmds, cmd)
345
346 if m.textarea.Focused() {
347 kp, ok := msg.(tea.KeyPressMsg)
348 if ok {
349 if kp.String() == "space" || m.textarea.Value() == "" {
350 m.isCompletionsOpen = false
351 m.currentQuery = ""
352 m.completionsStartIndex = 0
353 cmds = append(cmds, util.CmdHandler(completions.CloseCompletionsMsg{}))
354 } else {
355 word := m.textarea.Word()
356 if strings.HasPrefix(word, "@") {
357 // XXX: wont' work if editing in the middle of the field.
358 m.completionsStartIndex = strings.LastIndex(m.textarea.Value(), word)
359 m.currentQuery = word[1:]
360 x, y := m.completionsPosition()
361 x -= len(m.currentQuery)
362 m.isCompletionsOpen = true
363 cmds = append(cmds,
364 util.CmdHandler(completions.FilterCompletionsMsg{
365 Query: m.currentQuery,
366 Reopen: m.isCompletionsOpen,
367 X: x,
368 Y: y,
369 }),
370 )
371 } else if m.isCompletionsOpen {
372 m.isCompletionsOpen = false
373 m.currentQuery = ""
374 m.completionsStartIndex = 0
375 cmds = append(cmds, util.CmdHandler(completions.CloseCompletionsMsg{}))
376 }
377 }
378 }
379 }
380
381 return m, tea.Batch(cmds...)
382}
383
384func (m *editorCmp) setEditorPrompt() {
385 if m.app.Permissions.SkipRequests() {
386 m.textarea.SetPromptFunc(4, yoloPromptFunc)
387 return
388 }
389 m.textarea.SetPromptFunc(4, normalPromptFunc)
390}
391
392func (m *editorCmp) completionsPosition() (int, int) {
393 cur := m.textarea.Cursor()
394 if cur == nil {
395 return m.x, m.y + 1 // adjust for padding
396 }
397 x := cur.X + m.x
398 y := cur.Y + m.y + 1 // adjust for padding
399 return x, y
400}
401
402func (m *editorCmp) Cursor() *tea.Cursor {
403 cursor := m.textarea.Cursor()
404 if cursor != nil {
405 cursor.X = cursor.X + m.x + 1
406 cursor.Y = cursor.Y + m.y + 1 // adjust for padding
407 }
408 return cursor
409}
410
411var readyPlaceholders = [...]string{
412 "Ready!",
413 "Ready...",
414 "Ready?",
415 "Ready for instructions",
416}
417
418var workingPlaceholders = [...]string{
419 "Working!",
420 "Working...",
421 "Brrrrr...",
422 "Prrrrrrrr...",
423 "Processing...",
424 "Thinking...",
425}
426
427func (m *editorCmp) randomizePlaceholders() {
428 m.workingPlaceholder = workingPlaceholders[rand.Intn(len(workingPlaceholders))]
429 m.readyPlaceholder = readyPlaceholders[rand.Intn(len(readyPlaceholders))]
430}
431
432func (m *editorCmp) View() string {
433 t := styles.CurrentTheme()
434 // Update placeholder
435 if m.app.AgentCoordinator != nil && m.app.AgentCoordinator.IsBusy() {
436 m.textarea.Placeholder = m.workingPlaceholder
437 } else {
438 m.textarea.Placeholder = m.readyPlaceholder
439 }
440 if m.app.Permissions.SkipRequests() {
441 m.textarea.Placeholder = "Yolo mode!"
442 }
443 if len(m.attachments) == 0 {
444 content := t.S().Base.Padding(1).Render(
445 m.textarea.View(),
446 )
447 return content
448 }
449 content := t.S().Base.Padding(0, 1, 1, 1).Render(
450 lipgloss.JoinVertical(lipgloss.Top,
451 m.attachmentsContent(),
452 m.textarea.View(),
453 ),
454 )
455 return content
456}
457
458func (m *editorCmp) SetSize(width, height int) tea.Cmd {
459 m.width = width
460 m.height = height
461 m.textarea.SetWidth(width - 2) // adjust for padding
462 m.textarea.SetHeight(height - 2) // adjust for padding
463 return nil
464}
465
466func (m *editorCmp) GetSize() (int, int) {
467 return m.textarea.Width(), m.textarea.Height()
468}
469
470func (m *editorCmp) attachmentsContent() string {
471 var styledAttachments []string
472 t := styles.CurrentTheme()
473 attachmentStyles := t.S().Base.
474 MarginLeft(1).
475 Background(t.FgMuted).
476 Foreground(t.FgBase)
477 for i, attachment := range m.attachments {
478 var filename string
479 if len(attachment.FileName) > 10 {
480 filename = fmt.Sprintf(" %s %s...", styles.DocumentIcon, attachment.FileName[0:7])
481 } else {
482 filename = fmt.Sprintf(" %s %s", styles.DocumentIcon, attachment.FileName)
483 }
484 if m.deleteMode {
485 filename = fmt.Sprintf("%d%s", i, filename)
486 }
487 styledAttachments = append(styledAttachments, attachmentStyles.Render(filename))
488 }
489 content := lipgloss.JoinHorizontal(lipgloss.Left, styledAttachments...)
490 return content
491}
492
493func (m *editorCmp) SetPosition(x, y int) tea.Cmd {
494 m.x = x
495 m.y = y
496 return nil
497}
498
499func (m *editorCmp) startCompletions() tea.Msg {
500 ls := m.app.Config().Options.TUI.Completions
501 depth, limit := ls.Limits()
502 files, _, _ := fsext.ListDirectory(".", nil, depth, limit)
503 slices.Sort(files)
504 completionItems := make([]completions.Completion, 0, len(files))
505 for _, file := range files {
506 file = strings.TrimPrefix(file, "./")
507 completionItems = append(completionItems, completions.Completion{
508 Title: file,
509 Value: FileCompletionItem{
510 Path: file,
511 },
512 })
513 }
514
515 x, y := m.completionsPosition()
516 return completions.OpenCompletionsMsg{
517 Completions: completionItems,
518 X: x,
519 Y: y,
520 MaxResults: maxFileResults,
521 }
522}
523
524// Blur implements Container.
525func (c *editorCmp) Blur() tea.Cmd {
526 c.textarea.Blur()
527 return nil
528}
529
530// Focus implements Container.
531func (c *editorCmp) Focus() tea.Cmd {
532 return c.textarea.Focus()
533}
534
535// IsFocused implements Container.
536func (c *editorCmp) IsFocused() bool {
537 return c.textarea.Focused()
538}
539
540// Bindings implements Container.
541func (c *editorCmp) Bindings() []key.Binding {
542 return c.keyMap.KeyBindings()
543}
544
545// TODO: most likely we do not need to have the session here
546// we need to move some functionality to the page level
547func (c *editorCmp) SetSession(session session.Session) tea.Cmd {
548 c.session = session
549 return nil
550}
551
552func (c *editorCmp) IsCompletionsOpen() bool {
553 return c.isCompletionsOpen
554}
555
556func (c *editorCmp) HasAttachments() bool {
557 return len(c.attachments) > 0
558}
559
560func normalPromptFunc(info textarea.PromptInfo) string {
561 t := styles.CurrentTheme()
562 if info.LineNumber == 0 {
563 return " > "
564 }
565 if info.Focused {
566 return t.S().Base.Foreground(t.GreenDark).Render("::: ")
567 }
568 return t.S().Muted.Render("::: ")
569}
570
571func yoloPromptFunc(info textarea.PromptInfo) string {
572 t := styles.CurrentTheme()
573 if info.LineNumber == 0 {
574 if info.Focused {
575 return fmt.Sprintf("%s ", t.YoloIconFocused)
576 } else {
577 return fmt.Sprintf("%s ", t.YoloIconBlurred)
578 }
579 }
580 if info.Focused {
581 return fmt.Sprintf("%s ", t.YoloDotsFocused)
582 }
583 return fmt.Sprintf("%s ", t.YoloDotsBlurred)
584}
585
586func New(app *app.App) Editor {
587 t := styles.CurrentTheme()
588 ta := textarea.New()
589 ta.SetStyles(t.S().TextArea)
590 ta.ShowLineNumbers = false
591 ta.CharLimit = -1
592 ta.SetVirtualCursor(false)
593 ta.Focus()
594 e := &editorCmp{
595 // TODO: remove the app instance from here
596 app: app,
597 textarea: ta,
598 keyMap: DefaultEditorKeyMap(),
599 }
600 e.setEditorPrompt()
601
602 e.randomizePlaceholders()
603 e.textarea.Placeholder = e.readyPlaceholder
604
605 return e
606}