opencode/packages/tui/internal/components/chat/editor.go

805 lines
22 KiB
Go

package chat
import (
"encoding/base64"
"fmt"
"log/slog"
"os"
"path/filepath"
"strconv"
"strings"
"unicode/utf8"
"github.com/charmbracelet/bubbles/v2/spinner"
tea "github.com/charmbracelet/bubbletea/v2"
"github.com/charmbracelet/lipgloss/v2"
"github.com/google/uuid"
"github.com/sst/opencode-sdk-go"
"github.com/sst/opencode/internal/app"
"github.com/sst/opencode/internal/attachment"
"github.com/sst/opencode/internal/clipboard"
"github.com/sst/opencode/internal/commands"
"github.com/sst/opencode/internal/components/dialog"
"github.com/sst/opencode/internal/components/textarea"
"github.com/sst/opencode/internal/components/toast"
"github.com/sst/opencode/internal/styles"
"github.com/sst/opencode/internal/theme"
"github.com/sst/opencode/internal/util"
)
type EditorComponent interface {
tea.Model
tea.ViewModel
Content() string
Lines() int
Value() string
Length() int
Focused() bool
Focus() (tea.Model, tea.Cmd)
Blur()
Submit() (tea.Model, tea.Cmd)
Clear() (tea.Model, tea.Cmd)
Paste() (tea.Model, tea.Cmd)
Newline() (tea.Model, tea.Cmd)
SetValue(value string)
SetValueWithAttachments(value string)
SetInterruptKeyInDebounce(inDebounce bool)
SetExitKeyInDebounce(inDebounce bool)
RestoreFromHistory(index int)
}
type editorComponent struct {
app *app.App
width int
textarea textarea.Model
spinner spinner.Model
interruptKeyInDebounce bool
exitKeyInDebounce bool
historyIndex int // -1 means current (not in history)
currentText string // Store current text when navigating history
pasteCounter int
reverted bool
}
func (m *editorComponent) Init() tea.Cmd {
return tea.Batch(m.textarea.Focus(), m.spinner.Tick, tea.EnableReportFocus)
}
func (m *editorComponent) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
var cmds []tea.Cmd
var cmd tea.Cmd
switch msg := msg.(type) {
case tea.WindowSizeMsg:
m.width = msg.Width - 4
return m, nil
case spinner.TickMsg:
m.spinner, cmd = m.spinner.Update(msg)
return m, cmd
case tea.KeyPressMsg:
// Handle up/down arrows and ctrl+p/ctrl+n for history navigation
switch msg.String() {
case "up", "ctrl+p":
// Only navigate history if cursor is at the first line and column (for arrow keys)
// or allow ctrl+p from anywhere
if (msg.String() == "ctrl+p" || (m.textarea.Line() == 0 && m.textarea.CursorColumn() == 0)) && len(m.app.State.MessageHistory) > 0 {
if m.historyIndex == -1 {
// Save current text before entering history
m.currentText = m.textarea.Value()
m.textarea.MoveToBegin()
}
// Move up in history (older messages)
if m.historyIndex < len(m.app.State.MessageHistory)-1 {
m.historyIndex++
m.RestoreFromHistory(m.historyIndex)
m.textarea.MoveToBegin()
}
return m, nil
}
case "down", "ctrl+n":
// Only navigate history if cursor is at the last line and we're in history navigation (for arrow keys)
// or allow ctrl+n from anywhere if we're in history navigation
if (msg.String() == "ctrl+n" || m.textarea.IsCursorAtEnd()) && m.historyIndex > -1 {
// Move down in history (newer messages)
m.historyIndex--
if m.historyIndex == -1 {
// Restore current text
m.textarea.Reset()
m.textarea.SetValue(m.currentText)
m.currentText = ""
} else {
m.RestoreFromHistory(m.historyIndex)
m.textarea.MoveToEnd()
}
return m, nil
} else if m.historyIndex > -1 && msg.String() == "down" {
m.textarea.MoveToEnd()
return m, nil
}
}
// Reset history navigation on any other input
if m.historyIndex != -1 {
m.historyIndex = -1
m.currentText = ""
}
// Maximize editor responsiveness for printable characters
if msg.Text != "" {
m.reverted = false
m.textarea, cmd = m.textarea.Update(msg)
cmds = append(cmds, cmd)
return m, tea.Batch(cmds...)
}
case app.MessageRevertedMsg:
if msg.Session.ID == m.app.Session.ID {
switch msg.Message.Info.(type) {
case opencode.UserMessage:
prompt, err := msg.Message.ToPrompt()
if err != nil {
return m, toast.NewErrorToast("Failed to revert message")
}
m.RestoreFromPrompt(*prompt)
m.textarea.MoveToEnd()
m.reverted = true
return m, nil
}
}
case app.SessionUnrevertedMsg:
if msg.Session.ID == m.app.Session.ID {
if m.reverted {
updated, cmd := m.Clear()
m = updated.(*editorComponent)
return m, cmd
}
return m, nil
}
case tea.PasteMsg:
text := string(msg)
if filePath := strings.TrimSpace(strings.TrimPrefix(text, "@")); strings.HasPrefix(text, "@") && filePath != "" {
statPath := filePath
if !filepath.IsAbs(filePath) {
statPath = filepath.Join(m.app.Info.Path.Cwd, filePath)
}
if _, err := os.Stat(statPath); err == nil {
attachment := m.createAttachmentFromPath(filePath)
if attachment != nil {
m.textarea.InsertAttachment(attachment)
m.textarea.InsertString(" ")
return m, nil
}
}
}
text = strings.ReplaceAll(text, "\\", "")
text, err := strconv.Unquote(`"` + text + `"`)
if err != nil {
slog.Error("Failed to unquote text", "error", err)
text := string(msg)
if m.shouldSummarizePastedText(text) {
m.handleLongPaste(text)
} else {
m.textarea.InsertRunesFromUserInput([]rune(msg))
}
return m, nil
}
if _, err := os.Stat(text); err != nil {
slog.Error("Failed to paste file", "error", err)
text := string(msg)
if m.shouldSummarizePastedText(text) {
m.handleLongPaste(text)
} else {
m.textarea.InsertRunesFromUserInput([]rune(msg))
}
return m, nil
}
filePath := text
attachment := m.createAttachmentFromFile(filePath)
if attachment == nil {
if m.shouldSummarizePastedText(text) {
m.handleLongPaste(text)
} else {
m.textarea.InsertRunesFromUserInput([]rune(msg))
}
return m, nil
}
m.textarea.InsertAttachment(attachment)
m.textarea.InsertString(" ")
case tea.ClipboardMsg:
text := string(msg)
// Check if the pasted text is long and should be summarized
if m.shouldSummarizePastedText(text) {
m.handleLongPaste(text)
} else {
m.textarea.InsertRunesFromUserInput([]rune(text))
}
case dialog.ThemeSelectedMsg:
m.textarea = updateTextareaStyles(m.textarea)
m.spinner = createSpinner()
return m, tea.Batch(m.textarea.Focus(), m.spinner.Tick)
case dialog.CompletionSelectedMsg:
switch msg.Item.ProviderID {
case "commands":
commandName := strings.TrimPrefix(msg.Item.Value, "/")
updated, cmd := m.Clear()
m = updated.(*editorComponent)
cmds = append(cmds, cmd)
cmds = append(cmds, util.CmdHandler(commands.ExecuteCommandMsg(m.app.Commands[commands.CommandName(commandName)])))
return m, tea.Batch(cmds...)
case "files":
atIndex := m.textarea.LastRuneIndex('@')
if atIndex == -1 {
// Should not happen, but as a fallback, just insert.
m.textarea.InsertString(msg.Item.Value + " ")
return m, nil
}
// The range to replace is from the '@' up to the current cursor position.
// Replace the search term (e.g., "@search") with an empty string first.
cursorCol := m.textarea.CursorColumn()
m.textarea.ReplaceRange(atIndex, cursorCol, "")
// Now, insert the attachment at the position where the '@' was.
// The cursor is now at `atIndex` after the replacement.
filePath := msg.Item.Value
attachment := m.createAttachmentFromPath(filePath)
m.textarea.InsertAttachment(attachment)
m.textarea.InsertString(" ")
return m, nil
case "symbols":
atIndex := m.textarea.LastRuneIndex('@')
if atIndex == -1 {
// Should not happen, but as a fallback, just insert.
m.textarea.InsertString(msg.Item.Value + " ")
return m, nil
}
cursorCol := m.textarea.CursorColumn()
m.textarea.ReplaceRange(atIndex, cursorCol, "")
symbol := msg.Item.RawData.(opencode.Symbol)
parts := strings.Split(symbol.Name, ".")
lastPart := parts[len(parts)-1]
attachment := &attachment.Attachment{
ID: uuid.NewString(),
Type: "symbol",
Display: "@" + lastPart,
URL: msg.Item.Value,
Filename: lastPart,
MediaType: "text/plain",
Source: &attachment.SymbolSource{
Path: symbol.Location.Uri,
Name: symbol.Name,
Kind: int(symbol.Kind),
Range: attachment.SymbolRange{
Start: attachment.Position{
Line: int(symbol.Location.Range.Start.Line),
Char: int(symbol.Location.Range.Start.Character),
},
End: attachment.Position{
Line: int(symbol.Location.Range.End.Line),
Char: int(symbol.Location.Range.End.Character),
},
},
},
}
m.textarea.InsertAttachment(attachment)
m.textarea.InsertString(" ")
return m, nil
default:
slog.Debug("Unknown provider", "provider", msg.Item.ProviderID)
return m, nil
}
}
m.spinner, cmd = m.spinner.Update(msg)
cmds = append(cmds, cmd)
m.textarea, cmd = m.textarea.Update(msg)
cmds = append(cmds, cmd)
return m, tea.Batch(cmds...)
}
func (m *editorComponent) Content() string {
width := m.width
if m.app.Session.ID == "" {
width = min(width, 80)
}
t := theme.CurrentTheme()
base := styles.NewStyle().Foreground(t.Text()).Background(t.Background()).Render
muted := styles.NewStyle().Foreground(t.TextMuted()).Background(t.Background()).Render
promptStyle := styles.NewStyle().Foreground(t.Primary()).
Padding(0, 0, 0, 1).
Bold(true)
prompt := promptStyle.Render(">")
m.textarea.SetWidth(width - 6)
textarea := lipgloss.JoinHorizontal(
lipgloss.Top,
prompt,
m.textarea.View(),
)
borderForeground := t.Border()
if m.app.IsLeaderSequence {
borderForeground = t.Accent()
}
textarea = styles.NewStyle().
Background(t.BackgroundElement()).
Width(width).
PaddingTop(1).
PaddingBottom(1).
BorderStyle(lipgloss.ThickBorder()).
BorderForeground(borderForeground).
BorderBackground(t.Background()).
BorderLeft(true).
BorderRight(true).
Render(textarea)
hint := base(m.getSubmitKeyText()) + muted(" send ")
if m.exitKeyInDebounce {
keyText := m.getExitKeyText()
hint = base(keyText+" again") + muted(" to exit")
} else if m.app.IsBusy() {
keyText := m.getInterruptKeyText()
status := "working"
if m.app.CurrentPermission.ID != "" {
status = "waiting for permission"
}
if m.interruptKeyInDebounce && m.app.CurrentPermission.ID == "" {
hint = muted(
status,
) + m.spinner.View() + muted(
" ",
) + base(
keyText+" again",
) + muted(
" interrupt",
)
} else {
hint = muted(status) + m.spinner.View()
if m.app.CurrentPermission.ID == "" {
hint += muted(" ") + base(keyText) + muted(" interrupt")
}
}
}
model := ""
if m.app.Model != nil {
model = muted(m.app.Provider.Name) + base(" "+m.app.Model.Name)
}
space := width - 2 - lipgloss.Width(model) - lipgloss.Width(hint)
spacer := styles.NewStyle().Background(t.Background()).Width(space).Render("")
info := hint + spacer + model
info = styles.NewStyle().Background(t.Background()).Padding(0, 1).Render(info)
content := strings.Join([]string{"", textarea, info}, "\n")
return content
}
func (m *editorComponent) View() string {
width := m.width
if m.app.Session.ID == "" {
width = min(width, 80)
}
if m.Lines() > 1 {
return lipgloss.Place(
width,
5,
lipgloss.Center,
lipgloss.Center,
"",
styles.WhitespaceStyle(theme.CurrentTheme().Background()),
)
}
return m.Content()
}
func (m *editorComponent) Focused() bool {
return m.textarea.Focused()
}
func (m *editorComponent) Focus() (tea.Model, tea.Cmd) {
return m, m.textarea.Focus()
}
func (m *editorComponent) Blur() {
m.textarea.Blur()
}
func (m *editorComponent) Lines() int {
return m.textarea.LineCount()
}
func (m *editorComponent) Value() string {
return m.textarea.Value()
}
func (m *editorComponent) Length() int {
return m.textarea.Length()
}
func (m *editorComponent) Submit() (tea.Model, tea.Cmd) {
value := strings.TrimSpace(m.Value())
if value == "" {
return m, nil
}
switch value {
case "exit", "quit", "q", ":q":
return m, tea.Quit
}
if len(value) > 0 && value[len(value)-1] == '\\' {
// If the last character is a backslash, remove it and add a newline
backslashCol := m.textarea.CurrentRowLength() - 1
m.textarea.ReplaceRange(backslashCol, backslashCol+1, "")
m.textarea.InsertString("\n")
return m, nil
}
var cmds []tea.Cmd
attachments := m.textarea.GetAttachments()
prompt := app.Prompt{Text: value, Attachments: attachments}
m.app.State.AddPromptToHistory(prompt)
cmds = append(cmds, m.app.SaveState())
updated, cmd := m.Clear()
m = updated.(*editorComponent)
cmds = append(cmds, cmd)
cmds = append(cmds, util.CmdHandler(app.SendPrompt(prompt)))
return m, tea.Batch(cmds...)
}
func (m *editorComponent) Clear() (tea.Model, tea.Cmd) {
m.textarea.Reset()
m.historyIndex = -1
m.currentText = ""
m.pasteCounter = 0
return m, nil
}
func (m *editorComponent) Paste() (tea.Model, tea.Cmd) {
imageBytes := clipboard.Read(clipboard.FmtImage)
if imageBytes != nil {
attachmentCount := len(m.textarea.GetAttachments())
attachmentIndex := attachmentCount + 1
base64EncodedFile := base64.StdEncoding.EncodeToString(imageBytes)
attachment := &attachment.Attachment{
ID: uuid.NewString(),
Type: "file",
MediaType: "image/png",
Display: fmt.Sprintf("[Image #%d]", attachmentIndex),
Filename: fmt.Sprintf("image-%d.png", attachmentIndex),
URL: fmt.Sprintf("data:image/png;base64,%s", base64EncodedFile),
Source: &attachment.FileSource{
Path: fmt.Sprintf("image-%d.png", attachmentIndex),
Mime: "image/png",
Data: imageBytes,
},
}
m.textarea.InsertAttachment(attachment)
m.textarea.InsertString(" ")
return m, nil
}
textBytes := clipboard.Read(clipboard.FmtText)
if textBytes != nil {
text := string(textBytes)
// Check if the pasted text is long and should be summarized
if m.shouldSummarizePastedText(text) {
m.handleLongPaste(text)
} else {
m.textarea.InsertRunesFromUserInput([]rune(text))
}
return m, nil
}
// fallback to reading the clipboard using OSC52
return m, tea.ReadClipboard
}
func (m *editorComponent) Newline() (tea.Model, tea.Cmd) {
m.textarea.Newline()
return m, nil
}
func (m *editorComponent) SetInterruptKeyInDebounce(inDebounce bool) {
m.interruptKeyInDebounce = inDebounce
}
func (m *editorComponent) SetValue(value string) {
m.textarea.SetValue(value)
}
func (m *editorComponent) SetValueWithAttachments(value string) {
m.textarea.Reset()
i := 0
for i < len(value) {
r, size := utf8.DecodeRuneInString(value[i:])
// Check if filepath and add attachment
if r == '@' {
start := i + size
end := start
for end < len(value) {
nextR, nextSize := utf8.DecodeRuneInString(value[end:])
if nextR == ' ' || nextR == '\t' || nextR == '\n' || nextR == '\r' {
break
}
end += nextSize
}
if end > start {
filePath := value[start:end]
slog.Debug("test", "filePath", filePath)
if _, err := os.Stat(filepath.Join(m.app.Info.Path.Cwd, filePath)); err == nil {
slog.Debug("test", "found", true)
attachment := m.createAttachmentFromFile(filePath)
if attachment != nil {
m.textarea.InsertAttachment(attachment)
i = end
continue
}
}
}
}
// Not a valid file path, insert the character normally
m.textarea.InsertRune(r)
i += size
}
}
func (m *editorComponent) SetExitKeyInDebounce(inDebounce bool) {
m.exitKeyInDebounce = inDebounce
}
func (m *editorComponent) getInterruptKeyText() string {
return m.app.Commands[commands.SessionInterruptCommand].Keys()[0]
}
func (m *editorComponent) getSubmitKeyText() string {
return m.app.Commands[commands.InputSubmitCommand].Keys()[0]
}
func (m *editorComponent) getExitKeyText() string {
return m.app.Commands[commands.AppExitCommand].Keys()[0]
}
// shouldSummarizePastedText determines if pasted text should be summarized
func (m *editorComponent) shouldSummarizePastedText(text string) bool {
lines := strings.Split(text, "\n")
lineCount := len(lines)
charCount := len(text)
// Consider text long if it has more than 3 lines or more than 150 characters
return lineCount > 3 || charCount > 150
}
// handleLongPaste handles long pasted text by creating a summary attachment
func (m *editorComponent) handleLongPaste(text string) {
lines := strings.Split(text, "\n")
lineCount := len(lines)
// Increment paste counter
m.pasteCounter++
// Create attachment with full text as base64 encoded data
fileBytes := []byte(text)
base64EncodedText := base64.StdEncoding.EncodeToString(fileBytes)
url := fmt.Sprintf("data:text/plain;base64,%s", base64EncodedText)
fileName := fmt.Sprintf("pasted-text-%d.txt", m.pasteCounter)
displayText := fmt.Sprintf("[pasted #%d %d+ lines]", m.pasteCounter, lineCount)
attachment := &attachment.Attachment{
ID: uuid.NewString(),
Type: "text",
MediaType: "text/plain",
Display: displayText,
URL: url,
Filename: fileName,
Source: &attachment.TextSource{
Value: text,
},
}
m.textarea.InsertAttachment(attachment)
m.textarea.InsertString(" ")
}
func updateTextareaStyles(ta textarea.Model) textarea.Model {
t := theme.CurrentTheme()
bgColor := t.BackgroundElement()
textColor := t.Text()
textMutedColor := t.TextMuted()
ta.Styles.Blurred.Base = styles.NewStyle().Foreground(textColor).Background(bgColor).Lipgloss()
ta.Styles.Blurred.CursorLine = styles.NewStyle().Background(bgColor).Lipgloss()
ta.Styles.Blurred.Placeholder = styles.NewStyle().
Foreground(textMutedColor).
Background(bgColor).
Lipgloss()
ta.Styles.Blurred.Text = styles.NewStyle().Foreground(textColor).Background(bgColor).Lipgloss()
ta.Styles.Focused.Base = styles.NewStyle().Foreground(textColor).Background(bgColor).Lipgloss()
ta.Styles.Focused.CursorLine = styles.NewStyle().Background(bgColor).Lipgloss()
ta.Styles.Focused.Placeholder = styles.NewStyle().
Foreground(textMutedColor).
Background(bgColor).
Lipgloss()
ta.Styles.Focused.Text = styles.NewStyle().Foreground(textColor).Background(bgColor).Lipgloss()
ta.Styles.Attachment = styles.NewStyle().
Foreground(t.Secondary()).
Background(bgColor).
Lipgloss()
ta.Styles.SelectedAttachment = styles.NewStyle().
Foreground(t.Text()).
Background(t.Secondary()).
Lipgloss()
ta.Styles.Cursor.Color = t.Primary()
return ta
}
func createSpinner() spinner.Model {
t := theme.CurrentTheme()
return spinner.New(
spinner.WithSpinner(spinner.Ellipsis),
spinner.WithStyle(
styles.NewStyle().
Background(t.Background()).
Foreground(t.TextMuted()).
Width(3).
Lipgloss(),
),
)
}
func NewEditorComponent(app *app.App) EditorComponent {
s := createSpinner()
ta := textarea.New()
ta.Prompt = " "
ta.ShowLineNumbers = false
ta.CharLimit = -1
ta = updateTextareaStyles(ta)
m := &editorComponent{
app: app,
textarea: ta,
spinner: s,
interruptKeyInDebounce: false,
historyIndex: -1,
pasteCounter: 0,
}
return m
}
func (m *editorComponent) RestoreFromPrompt(prompt app.Prompt) {
m.textarea.Reset()
m.textarea.SetValue(prompt.Text)
// Sort attachments by start index in reverse order (process from end to beginning)
// This prevents index shifting issues
attachmentsCopy := make([]*attachment.Attachment, len(prompt.Attachments))
copy(attachmentsCopy, prompt.Attachments)
for i := 0; i < len(attachmentsCopy)-1; i++ {
for j := i + 1; j < len(attachmentsCopy); j++ {
if attachmentsCopy[i].StartIndex < attachmentsCopy[j].StartIndex {
attachmentsCopy[i], attachmentsCopy[j] = attachmentsCopy[j], attachmentsCopy[i]
}
}
}
for _, att := range attachmentsCopy {
m.textarea.SetCursorColumn(att.StartIndex)
m.textarea.ReplaceRange(att.StartIndex, att.EndIndex, "")
m.textarea.InsertAttachment(att)
}
}
// RestoreFromHistory restores a message from history at the given index
func (m *editorComponent) RestoreFromHistory(index int) {
if index < 0 || index >= len(m.app.State.MessageHistory) {
return
}
entry := m.app.State.MessageHistory[index]
m.RestoreFromPrompt(entry)
}
func getMediaTypeFromExtension(ext string) string {
switch strings.ToLower(ext) {
case ".jpg":
return "image/jpeg"
case ".png", ".jpeg", ".gif", ".webp":
return "image/" + ext[1:]
case ".pdf":
return "application/pdf"
default:
return "text/plain"
}
}
func (m *editorComponent) createAttachmentFromFile(filePath string) *attachment.Attachment {
ext := strings.ToLower(filepath.Ext(filePath))
mediaType := getMediaTypeFromExtension(ext)
absolutePath := filePath
if !filepath.IsAbs(filePath) {
absolutePath = filepath.Join(m.app.Info.Path.Cwd, filePath)
}
// For text files, create a simple file reference
if mediaType == "text/plain" {
return &attachment.Attachment{
ID: uuid.NewString(),
Type: "file",
Display: "@" + filePath,
URL: fmt.Sprintf("file://%s", absolutePath),
Filename: filePath,
MediaType: mediaType,
Source: &attachment.FileSource{
Path: absolutePath,
Mime: mediaType,
},
}
}
// For binary files (images, PDFs), read and encode
fileBytes, err := os.ReadFile(filePath)
if err != nil {
slog.Error("Failed to read file", "error", err)
return nil
}
base64EncodedFile := base64.StdEncoding.EncodeToString(fileBytes)
url := fmt.Sprintf("data:%s;base64,%s", mediaType, base64EncodedFile)
attachmentCount := len(m.textarea.GetAttachments())
attachmentIndex := attachmentCount + 1
label := "File"
if strings.HasPrefix(mediaType, "image/") {
label = "Image"
}
return &attachment.Attachment{
ID: uuid.NewString(),
Type: "file",
MediaType: mediaType,
Display: fmt.Sprintf("[%s #%d]", label, attachmentIndex),
URL: url,
Filename: filePath,
Source: &attachment.FileSource{
Path: absolutePath,
Mime: mediaType,
Data: fileBytes,
},
}
}
func (m *editorComponent) createAttachmentFromPath(filePath string) *attachment.Attachment {
extension := filepath.Ext(filePath)
mediaType := getMediaTypeFromExtension(extension)
absolutePath := filePath
if !filepath.IsAbs(filePath) {
absolutePath = filepath.Join(m.app.Info.Path.Cwd, filePath)
}
return &attachment.Attachment{
ID: uuid.NewString(),
Type: "file",
Display: "@" + filePath,
URL: fmt.Sprintf("file://%s", absolutePath),
Filename: filePath,
MediaType: mediaType,
Source: &attachment.FileSource{
Path: absolutePath,
Mime: mediaType,
},
}
}