@@ -0,0 +1,610 @@
+package editor
+
+import (
+ "context"
+ "fmt"
+ "math/rand"
+ "net/http"
+ "os"
+ "os/exec"
+ "path/filepath"
+ "runtime"
+ "slices"
+ "strings"
+ "unicode"
+
+ "github.com/charmbracelet/bubbles/v2/key"
+ "github.com/charmbracelet/bubbles/v2/textarea"
+ tea "github.com/charmbracelet/bubbletea/v2"
+ "github.com/charmbracelet/crush/internal/app"
+ "github.com/charmbracelet/crush/internal/fsext"
+ "github.com/charmbracelet/crush/internal/message"
+ "github.com/charmbracelet/crush/internal/session"
+ "github.com/charmbracelet/crush/internal/tui/components/chat"
+ "github.com/charmbracelet/crush/internal/tui/components/completions"
+ "github.com/charmbracelet/crush/internal/tui/components/core/layout"
+ "github.com/charmbracelet/crush/internal/tui/components/dialogs"
+ "github.com/charmbracelet/crush/internal/tui/components/dialogs/commands"
+ "github.com/charmbracelet/crush/internal/tui/components/dialogs/filepicker"
+ "github.com/charmbracelet/crush/internal/tui/components/dialogs/quit"
+ "github.com/charmbracelet/crush/internal/tui/styles"
+ "github.com/charmbracelet/crush/internal/tui/util"
+ "github.com/charmbracelet/lipgloss/v2"
+)
+
+type Editor interface {
+ util.Model
+ layout.Sizeable
+ layout.Focusable
+ layout.Help
+ layout.Positional
+
+ SetSession(session session.Session) tea.Cmd
+ IsCompletionsOpen() bool
+ HasAttachments() bool
+ Cursor() *tea.Cursor
+}
+
+type FileCompletionItem struct {
+ Path string // The file path
+}
+
+type editorCmp struct {
+ width int
+ height int
+ x, y int
+ app *app.App
+ session session.Session
+ textarea textarea.Model
+ attachments []message.Attachment
+ deleteMode bool
+ readyPlaceholder string
+ workingPlaceholder string
+
+ keyMap EditorKeyMap
+
+ // File path completions
+ currentQuery string
+ completionsStartIndex int
+ isCompletionsOpen bool
+
+ // History
+ promptHistoryIndex int
+}
+
+var DeleteKeyMaps = DeleteAttachmentKeyMaps{
+ AttachmentDeleteMode: key.NewBinding(
+ key.WithKeys("ctrl+r"),
+ key.WithHelp("ctrl+r+{i}", "delete attachment at index i"),
+ ),
+ Escape: key.NewBinding(
+ key.WithKeys("esc"),
+ key.WithHelp("esc", "cancel delete mode"),
+ ),
+ DeleteAllAttachments: key.NewBinding(
+ key.WithKeys("r"),
+ key.WithHelp("ctrl+r+r", "delete all attachments"),
+ ),
+}
+
+const (
+ maxAttachments = 5
+)
+
+type OpenEditorMsg struct {
+ Text string
+}
+
+func (m *editorCmp) openEditor(value string) tea.Cmd {
+ editor := os.Getenv("EDITOR")
+ if editor == "" {
+ // Use platform-appropriate default editor
+ if runtime.GOOS == "windows" {
+ editor = "notepad"
+ } else {
+ editor = "nvim"
+ }
+ }
+
+ tmpfile, err := os.CreateTemp("", "msg_*.md")
+ if err != nil {
+ return util.ReportError(err)
+ }
+ defer tmpfile.Close() //nolint:errcheck
+ if _, err := tmpfile.WriteString(value); err != nil {
+ return util.ReportError(err)
+ }
+ c := exec.CommandContext(context.TODO(), editor, tmpfile.Name())
+ c.Stdin = os.Stdin
+ c.Stdout = os.Stdout
+ c.Stderr = os.Stderr
+ return tea.ExecProcess(c, func(err error) tea.Msg {
+ if err != nil {
+ return util.ReportError(err)
+ }
+ content, err := os.ReadFile(tmpfile.Name())
+ if err != nil {
+ return util.ReportError(err)
+ }
+ if len(content) == 0 {
+ return util.ReportWarn("Message is empty")
+ }
+ os.Remove(tmpfile.Name())
+ return OpenEditorMsg{
+ Text: strings.TrimSpace(string(content)),
+ }
+ })
+}
+
+func (m *editorCmp) Init() tea.Cmd {
+ return nil
+}
+
+func (m *editorCmp) send() tea.Cmd {
+ if m.app.CoderAgent == nil {
+ return util.ReportError(fmt.Errorf("coder agent is not initialized"))
+ }
+ if m.app.CoderAgent.IsSessionBusy(m.session.ID) {
+ return util.ReportWarn("Agent is working, please wait...")
+ }
+
+ value := m.textarea.Value()
+ value = strings.TrimSpace(value)
+
+ switch value {
+ case "exit", "quit":
+ m.textarea.Reset()
+ return util.CmdHandler(dialogs.OpenDialogMsg{Model: quit.NewQuitDialog()})
+ }
+
+ m.textarea.Reset()
+ attachments := m.attachments
+
+ m.attachments = nil
+ if value == "" {
+ return nil
+ }
+
+ // Change the placeholder when sending a new message.
+ m.randomizePlaceholders()
+
+ return tea.Batch(
+ util.CmdHandler(chat.SendMsg{
+ Text: value,
+ Attachments: attachments,
+ }),
+ )
+}
+
+func (m *editorCmp) repositionCompletions() tea.Msg {
+ x, y := m.completionsPosition()
+ return completions.RepositionCompletionsMsg{X: x, Y: y}
+}
+
+func (m *editorCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+ var cmd tea.Cmd
+ var cmds []tea.Cmd
+ switch msg := msg.(type) {
+ case tea.WindowSizeMsg:
+ return m, m.repositionCompletions
+ case filepicker.FilePickedMsg:
+ if len(m.attachments) >= maxAttachments {
+ return m, util.ReportError(fmt.Errorf("cannot add more than %d images", maxAttachments))
+ }
+ m.attachments = append(m.attachments, msg.Attachment)
+ return m, nil
+ case completions.CompletionsOpenedMsg:
+ m.isCompletionsOpen = true
+ case completions.CompletionsClosedMsg:
+ m.isCompletionsOpen = false
+ m.currentQuery = ""
+ m.completionsStartIndex = 0
+ case completions.SelectCompletionMsg:
+ if !m.isCompletionsOpen {
+ return m, nil
+ }
+ if item, ok := msg.Value.(FileCompletionItem); ok {
+ word := m.textarea.Word()
+ // If the selected item is a file, insert its path into the textarea
+ value := m.textarea.Value()
+ value = value[:m.completionsStartIndex] + // Remove the current query
+ item.Path + // Insert the file path
+ value[m.completionsStartIndex+len(word):] // Append the rest of the value
+ // XXX: This will always move the cursor to the end of the textarea.
+ m.textarea.SetValue(value)
+ m.textarea.MoveToEnd()
+ if !msg.Insert {
+ m.isCompletionsOpen = false
+ m.currentQuery = ""
+ m.completionsStartIndex = 0
+ }
+ }
+
+ case commands.OpenExternalEditorMsg:
+ if m.app.CoderAgent.IsSessionBusy(m.session.ID) {
+ return m, util.ReportWarn("Agent is working, please wait...")
+ }
+ return m, m.openEditor(m.textarea.Value())
+ case OpenEditorMsg:
+ m.textarea.SetValue(msg.Text)
+ m.textarea.MoveToEnd()
+ case tea.PasteMsg:
+ path := strings.ReplaceAll(string(msg), "\\ ", " ")
+ // try to get an image
+ path, err := filepath.Abs(path)
+ if err != nil {
+ m.textarea, cmd = m.textarea.Update(msg)
+ return m, cmd
+ }
+ isAllowedType := false
+ for _, ext := range filepicker.AllowedTypes {
+ if strings.HasSuffix(path, ext) {
+ isAllowedType = true
+ break
+ }
+ }
+ if !isAllowedType {
+ m.textarea, cmd = m.textarea.Update(msg)
+ return m, cmd
+ }
+ tooBig, _ := filepicker.IsFileTooBig(path, filepicker.MaxAttachmentSize)
+ if tooBig {
+ m.textarea, cmd = m.textarea.Update(msg)
+ return m, cmd
+ }
+
+ content, err := os.ReadFile(path)
+ if err != nil {
+ m.textarea, cmd = m.textarea.Update(msg)
+ return m, cmd
+ }
+ mimeBufferSize := min(512, len(content))
+ mimeType := http.DetectContentType(content[:mimeBufferSize])
+ fileName := filepath.Base(path)
+ attachment := message.Attachment{FilePath: path, FileName: fileName, MimeType: mimeType, Content: content}
+ return m, util.CmdHandler(filepicker.FilePickedMsg{
+ Attachment: attachment,
+ })
+
+ case tea.KeyPressMsg:
+ cur := m.textarea.Cursor()
+ curIdx := m.textarea.Width()*cur.Y + cur.X
+ switch {
+ // Completions
+ case msg.String() == "/" && !m.isCompletionsOpen &&
+ // only show if beginning of prompt, or if previous char is a space or newline:
+ (len(m.textarea.Value()) == 0 || unicode.IsSpace(rune(m.textarea.Value()[len(m.textarea.Value())-1]))):
+ m.isCompletionsOpen = true
+ m.currentQuery = ""
+ m.completionsStartIndex = curIdx
+ cmds = append(cmds, m.startCompletions)
+ case m.isCompletionsOpen && curIdx <= m.completionsStartIndex:
+ cmds = append(cmds, util.CmdHandler(completions.CloseCompletionsMsg{}))
+ }
+ if key.Matches(msg, DeleteKeyMaps.AttachmentDeleteMode) {
+ m.deleteMode = true
+ return m, nil
+ }
+ if key.Matches(msg, DeleteKeyMaps.DeleteAllAttachments) && m.deleteMode {
+ m.deleteMode = false
+ m.attachments = nil
+ return m, nil
+ }
+ rune := msg.Code
+ if m.deleteMode && unicode.IsDigit(rune) {
+ num := int(rune - '0')
+ m.deleteMode = false
+ if num < 10 && len(m.attachments) > num {
+ if num == 0 {
+ m.attachments = m.attachments[num+1:]
+ } else {
+ m.attachments = slices.Delete(m.attachments, num, num+1)
+ }
+ return m, nil
+ }
+ }
+ if key.Matches(msg, m.keyMap.OpenEditor) {
+ if m.app.CoderAgent.IsSessionBusy(m.session.ID) {
+ return m, util.ReportWarn("Agent is working, please wait...")
+ }
+ return m, m.openEditor(m.textarea.Value())
+ }
+ if key.Matches(msg, DeleteKeyMaps.Escape) {
+ m.deleteMode = false
+ return m, nil
+ }
+ if key.Matches(msg, m.keyMap.Newline) {
+ m.textarea.InsertRune('\n')
+ cmds = append(cmds, util.CmdHandler(completions.CloseCompletionsMsg{}))
+ }
+ // History
+ if key.Matches(msg, m.keyMap.Previous) || key.Matches(msg, m.keyMap.Next) {
+ m.textarea.SetValue(m.handleMessageHistory(msg))
+ }
+ // Handle Enter key
+ if m.textarea.Focused() && key.Matches(msg, m.keyMap.SendMessage) {
+ value := m.textarea.Value()
+ if len(value) > 0 && value[len(value)-1] == '\\' {
+ // If the last character is a backslash, remove it and add a newline
+ m.textarea.SetValue(value[:len(value)-1])
+ } else {
+ // Otherwise, send the message
+ return m, m.send()
+ }
+ }
+ }
+
+ m.textarea, cmd = m.textarea.Update(msg)
+ cmds = append(cmds, cmd)
+
+ if m.textarea.Focused() {
+ kp, ok := msg.(tea.KeyPressMsg)
+ if ok {
+ if kp.String() == "space" || m.textarea.Value() == "" {
+ m.isCompletionsOpen = false
+ m.currentQuery = ""
+ m.completionsStartIndex = 0
+ cmds = append(cmds, util.CmdHandler(completions.CloseCompletionsMsg{}))
+ } else {
+ word := m.textarea.Word()
+ if strings.HasPrefix(word, "/") {
+ // XXX: wont' work if editing in the middle of the field.
+ m.completionsStartIndex = strings.LastIndex(m.textarea.Value(), word)
+ m.currentQuery = word[1:]
+ x, y := m.completionsPosition()
+ x -= len(m.currentQuery)
+ m.isCompletionsOpen = true
+ cmds = append(cmds,
+ util.CmdHandler(completions.FilterCompletionsMsg{
+ Query: m.currentQuery,
+ Reopen: m.isCompletionsOpen,
+ X: x,
+ Y: y,
+ }),
+ )
+ } else if m.isCompletionsOpen {
+ m.isCompletionsOpen = false
+ m.currentQuery = ""
+ m.completionsStartIndex = 0
+ cmds = append(cmds, util.CmdHandler(completions.CloseCompletionsMsg{}))
+ }
+ }
+ }
+ }
+
+ return m, tea.Batch(cmds...)
+}
+
+func (m *editorCmp) completionsPosition() (int, int) {
+ cur := m.textarea.Cursor()
+ if cur == nil {
+ return m.x, m.y + 1 // adjust for padding
+ }
+ x := cur.X + m.x
+ y := cur.Y + m.y + 1 // adjust for padding
+ return x, y
+}
+
+func (m *editorCmp) Cursor() *tea.Cursor {
+ cursor := m.textarea.Cursor()
+ if cursor != nil {
+ cursor.X = cursor.X + m.x + 1
+ cursor.Y = cursor.Y + m.y + 1 // adjust for padding
+ }
+ return cursor
+}
+
+var readyPlaceholders = [...]string{
+ "Ready!",
+ "Ready...",
+ "Ready?",
+ "Ready for instructions",
+}
+
+var workingPlaceholders = [...]string{
+ "Working!",
+ "Working...",
+ "Brrrrr...",
+ "Prrrrrrrr...",
+ "Processing...",
+ "Thinking...",
+}
+
+func (m *editorCmp) randomizePlaceholders() {
+ m.workingPlaceholder = workingPlaceholders[rand.Intn(len(workingPlaceholders))]
+ m.readyPlaceholder = readyPlaceholders[rand.Intn(len(readyPlaceholders))]
+}
+
+func (m *editorCmp) View() string {
+ t := styles.CurrentTheme()
+ // Update placeholder
+ if m.app.CoderAgent != nil && m.app.CoderAgent.IsBusy() {
+ m.textarea.Placeholder = m.workingPlaceholder
+ } else {
+ m.textarea.Placeholder = m.readyPlaceholder
+ }
+ if len(m.attachments) == 0 {
+ content := t.S().Base.Padding(1).Render(
+ m.textarea.View(),
+ )
+ return content
+ }
+ content := t.S().Base.Padding(0, 1, 1, 1).Render(
+ lipgloss.JoinVertical(lipgloss.Top,
+ m.attachmentsContent(),
+ m.textarea.View(),
+ ),
+ )
+ return content
+}
+
+func (m *editorCmp) SetSize(width, height int) tea.Cmd {
+ m.width = width
+ m.height = height
+ m.textarea.SetWidth(width - 2) // adjust for padding
+ m.textarea.SetHeight(height - 2) // adjust for padding
+ return nil
+}
+
+func (m *editorCmp) GetSize() (int, int) {
+ return m.textarea.Width(), m.textarea.Height()
+}
+
+func (m *editorCmp) attachmentsContent() string {
+ var styledAttachments []string
+ t := styles.CurrentTheme()
+ attachmentStyles := t.S().Base.
+ MarginLeft(1).
+ Background(t.FgMuted).
+ Foreground(t.FgBase)
+ for i, attachment := range m.attachments {
+ var filename string
+ if len(attachment.FileName) > 10 {
+ filename = fmt.Sprintf(" %s %s...", styles.DocumentIcon, attachment.FileName[0:7])
+ } else {
+ filename = fmt.Sprintf(" %s %s", styles.DocumentIcon, attachment.FileName)
+ }
+ if m.deleteMode {
+ filename = fmt.Sprintf("%d%s", i, filename)
+ }
+ styledAttachments = append(styledAttachments, attachmentStyles.Render(filename))
+ }
+ content := lipgloss.JoinHorizontal(lipgloss.Left, styledAttachments...)
+ return content
+}
+
+func (m *editorCmp) SetPosition(x, y int) tea.Cmd {
+ m.x = x
+ m.y = y
+ return nil
+}
+
+func (m *editorCmp) startCompletions() tea.Msg {
+ files, _, _ := fsext.ListDirectory(".", []string{}, 0)
+ completionItems := make([]completions.Completion, 0, len(files))
+ for _, file := range files {
+ file = strings.TrimPrefix(file, "./")
+ completionItems = append(completionItems, completions.Completion{
+ Title: file,
+ Value: FileCompletionItem{
+ Path: file,
+ },
+ })
+ }
+
+ x, y := m.completionsPosition()
+ return completions.OpenCompletionsMsg{
+ Completions: completionItems,
+ X: x,
+ Y: y,
+ }
+}
+
+// Blur implements Container.
+func (c *editorCmp) Blur() tea.Cmd {
+ c.textarea.Blur()
+ return nil
+}
+
+// Focus implements Container.
+func (c *editorCmp) Focus() tea.Cmd {
+ return c.textarea.Focus()
+}
+
+// IsFocused implements Container.
+func (c *editorCmp) IsFocused() bool {
+ return c.textarea.Focused()
+}
+
+// Bindings implements Container.
+func (c *editorCmp) Bindings() []key.Binding {
+ return c.keyMap.KeyBindings()
+}
+
+// TODO: most likely we do not need to have the session here
+// we need to move some functionality to the page level
+func (c *editorCmp) SetSession(session session.Session) tea.Cmd {
+ c.session = session
+ return nil
+}
+
+func (c *editorCmp) IsCompletionsOpen() bool {
+ return c.isCompletionsOpen
+}
+
+func (c *editorCmp) HasAttachments() bool {
+ return len(c.attachments) > 0
+}
+
+func New(app *app.App) Editor {
+ t := styles.CurrentTheme()
+ ta := textarea.New()
+ ta.SetStyles(t.S().TextArea)
+ ta.SetPromptFunc(4, func(info textarea.PromptInfo) string {
+ if info.LineNumber == 0 {
+ return " > "
+ }
+ if info.Focused {
+ return t.S().Base.Foreground(t.GreenDark).Render("::: ")
+ } else {
+ return t.S().Muted.Render("::: ")
+ }
+ })
+ ta.ShowLineNumbers = false
+ ta.CharLimit = -1
+ ta.SetVirtualCursor(false)
+ ta.Focus()
+
+ e := &editorCmp{
+ // TODO: remove the app instance from here
+ app: app,
+ textarea: ta,
+ keyMap: DefaultEditorKeyMap(),
+ }
+
+ e.randomizePlaceholders()
+ e.textarea.Placeholder = e.readyPlaceholder
+
+ return e
+}
+
+func (m *editorCmp) getUserMessagesAsText(ctx context.Context) ([]string, error) {
+ allMessages, err := m.app.Messages.List(ctx, m.session.ID)
+ if err != nil {
+ return nil, err
+ }
+
+ var userMessages []string
+ for _, msg := range allMessages {
+ if msg.Role == message.User {
+ userMessages = append(userMessages, msg.Content().Text)
+ }
+ }
+ return userMessages, nil
+}
+
+func (m *editorCmp) handleMessageHistory(msg tea.KeyMsg) string {
+ ctx := context.Background()
+ userMessages, err := m.getUserMessagesAsText(ctx)
+ if err != nil {
+ return "" // Do nothing.
+ }
+ userMessages = append(userMessages, "") // Give the user a reset option.
+ if len(userMessages) > 0 {
+ if key.Matches(msg, m.keyMap.Previous) {
+ if m.promptHistoryIndex == 0 {
+ m.promptHistoryIndex = len(userMessages) - 1
+ } else {
+ m.promptHistoryIndex -= 1
+ }
+ }
+ if key.Matches(msg, m.keyMap.Next) {
+ if m.promptHistoryIndex == len(userMessages)-1 {
+ m.promptHistoryIndex = 0
+ } else {
+ m.promptHistoryIndex += 1
+ }
+ }
+ }
+ return userMessages[m.promptHistoryIndex]
+}
@@ -0,0 +1,81 @@
+package editor
+
+import (
+ "github.com/charmbracelet/bubbles/v2/key"
+)
+
+type EditorKeyMap struct {
+ AddFile key.Binding
+ SendMessage key.Binding
+ OpenEditor key.Binding
+ Newline key.Binding
+ Next key.Binding
+ Previous key.Binding
+}
+
+func DefaultEditorKeyMap() EditorKeyMap {
+ return EditorKeyMap{
+ AddFile: key.NewBinding(
+ key.WithKeys("/"),
+ key.WithHelp("/", "add file"),
+ ),
+ SendMessage: key.NewBinding(
+ key.WithKeys("enter"),
+ key.WithHelp("enter", "send"),
+ ),
+ OpenEditor: key.NewBinding(
+ key.WithKeys("ctrl+o"),
+ key.WithHelp("ctrl+o", "open editor"),
+ ),
+ Newline: key.NewBinding(
+ key.WithKeys("shift+enter", "ctrl+j"),
+ // "ctrl+j" is a common keybinding for newline in many editors. If
+ // the terminal supports "shift+enter", we substitute the help text
+ // to reflect that.
+ key.WithHelp("ctrl+j", "newline"),
+ ),
+ Next: key.NewBinding(
+ key.WithKeys("shift+down"),
+ key.WithHelp("shift+↓", "down"),
+ ),
+ Previous: key.NewBinding(
+ key.WithKeys("shift+up"),
+ key.WithHelp("shift+↑", "up"),
+ ),
+ }
+}
+
+// KeyBindings implements layout.KeyMapProvider
+func (k EditorKeyMap) KeyBindings() []key.Binding {
+ return []key.Binding{
+ k.AddFile,
+ k.SendMessage,
+ k.OpenEditor,
+ k.Newline,
+ AttachmentsKeyMaps.AttachmentDeleteMode,
+ AttachmentsKeyMaps.DeleteAllAttachments,
+ AttachmentsKeyMaps.Escape,
+ }
+}
+
+type DeleteAttachmentKeyMaps struct {
+ AttachmentDeleteMode key.Binding
+ Escape key.Binding
+ DeleteAllAttachments key.Binding
+}
+
+// TODO: update this to use the new keymap concepts
+var AttachmentsKeyMaps = DeleteAttachmentKeyMaps{
+ AttachmentDeleteMode: key.NewBinding(
+ key.WithKeys("ctrl+r"),
+ key.WithHelp("ctrl+r+{i}", "delete attachment at index i"),
+ ),
+ Escape: key.NewBinding(
+ key.WithKeys("esc"),
+ key.WithHelp("esc", "cancel delete mode"),
+ ),
+ DeleteAllAttachments: key.NewBinding(
+ key.WithKeys("r"),
+ key.WithHelp("ctrl+r+r", "delete all attachments"),
+ ),
+}