opencode/packages/tui/internal/components/chat/editor.go
2025-07-04 12:24:01 -04:00

378 lines
10 KiB
Go

package chat
import (
"fmt"
"log/slog"
"path/filepath"
"strings"
"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/commands"
"github.com/sst/opencode/internal/components/dialog"
"github.com/sst/opencode/internal/components/textarea"
"github.com/sst/opencode/internal/image"
"github.com/sst/opencode/internal/styles"
"github.com/sst/opencode/internal/theme"
"github.com/sst/opencode/internal/util"
)
type EditorComponent interface {
tea.Model
View(width int) string
Content(width int) string
Lines() int
Value() string
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)
SetInterruptKeyInDebounce(inDebounce bool)
}
type editorComponent struct {
app *app.App
textarea textarea.Model
spinner spinner.Model
interruptKeyInDebounce 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 spinner.TickMsg:
m.spinner, cmd = m.spinner.Update(msg)
return m, cmd
case tea.KeyPressMsg:
// Maximize editor responsiveness for printable characters
if msg.Text != "" {
m.textarea, cmd = m.textarea.Update(msg)
cmds = append(cmds, cmd)
return m, tea.Batch(cmds...)
}
case dialog.ThemeSelectedMsg:
m.textarea = createTextArea(&m.textarea)
m.spinner = createSpinner()
return m, tea.Batch(m.spinner.Tick, m.textarea.Focus())
case dialog.CompletionSelectedMsg:
switch msg.ProviderID {
case "commands":
commandName := strings.TrimPrefix(msg.CompletionValue, "/")
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.CompletionValue + " ")
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.CompletionValue
fileName := filepath.Base(filePath)
extension := filepath.Ext(filePath)
mediaType := ""
switch extension {
case ".jpg":
mediaType = "image/jpeg"
case ".png", ".jpeg", ".gif", ".webp":
mediaType = "image/" + extension[1:]
case ".pdf":
mediaType = "application/pdf"
default:
mediaType = "text/plain"
}
attachment := &textarea.Attachment{
ID: uuid.NewString(),
Display: "@" + fileName,
URL: fmt.Sprintf("file://./%s", filePath),
Filename: fileName,
MediaType: mediaType,
}
m.textarea.InsertAttachment(attachment)
m.textarea.InsertString(" ")
return m, nil
default:
existingValue := m.textarea.Value()
lastSpaceIndex := strings.LastIndex(existingValue, " ")
if lastSpaceIndex == -1 {
m.textarea.SetValue(msg.CompletionValue + " ")
} else {
modifiedValue := existingValue[:lastSpaceIndex+1] + msg.CompletionValue
m.textarea.SetValue(modifiedValue + " ")
}
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(width int) string {
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(),
)
textarea = styles.NewStyle().
Background(t.BackgroundElement()).
Width(width).
PaddingTop(1).
PaddingBottom(1).
BorderStyle(lipgloss.ThickBorder()).
BorderForeground(t.Border()).
BorderBackground(t.Background()).
BorderLeft(true).
BorderRight(true).
Render(textarea)
hint := base(m.getSubmitKeyText()) + muted(" send ")
if m.app.IsBusy() {
keyText := m.getInterruptKeyText()
if m.interruptKeyInDebounce {
hint = muted(
"working",
) + m.spinner.View() + muted(
" ",
) + base(
keyText+" again",
) + muted(
" interrupt",
)
} else {
hint = muted("working") + m.spinner.View() + 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(width int) string {
if m.Lines() > 1 {
return lipgloss.Place(
width,
5,
lipgloss.Center,
lipgloss.Center,
"",
styles.WhitespaceStyle(theme.CurrentTheme().Background()),
)
}
return m.Content(width)
}
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) Submit() (tea.Model, tea.Cmd) {
value := strings.TrimSpace(m.Value())
if value == "" {
return m, nil
}
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] + "\n")
return m, nil
}
var cmds []tea.Cmd
attachments := m.textarea.GetAttachments()
fileParts := make([]opencode.FilePartParam, 0)
for _, attachment := range attachments {
fileParts = append(fileParts, opencode.FilePartParam{
Type: opencode.F(opencode.FilePartTypeFile),
MediaType: opencode.F(attachment.MediaType),
URL: opencode.F(attachment.URL),
Filename: opencode.F(attachment.Filename),
})
}
updated, cmd := m.Clear()
m = updated.(*editorComponent)
cmds = append(cmds, cmd)
cmds = append(cmds, util.CmdHandler(app.SendMsg{Text: value, Attachments: fileParts}))
return m, tea.Batch(cmds...)
}
func (m *editorComponent) Clear() (tea.Model, tea.Cmd) {
m.textarea.Reset()
return m, nil
}
func (m *editorComponent) Paste() (tea.Model, tea.Cmd) {
_, text, err := image.GetImageFromClipboard()
if err != nil {
slog.Error(err.Error())
return m, nil
}
// if len(imageBytes) != 0 {
// attachmentName := fmt.Sprintf("clipboard-image-%d", len(m.attachments))
// attachment := app.Attachment{
// FilePath: attachmentName,
// FileName: attachmentName,
// Content: imageBytes,
// MimeType: "image/png",
// }
// m.attachments = append(m.attachments, attachment)
// } else {
m.textarea.SetValue(m.textarea.Value() + text)
// }
return m, nil
}
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) getInterruptKeyText() string {
return m.app.Commands[commands.SessionInterruptCommand].Keys()[0]
}
func (m *editorComponent) getSubmitKeyText() string {
return m.app.Commands[commands.InputSubmitCommand].Keys()[0]
}
func createTextArea(existing *textarea.Model) textarea.Model {
t := theme.CurrentTheme()
bgColor := t.BackgroundElement()
textColor := t.Text()
textMutedColor := t.TextMuted()
ta := textarea.New()
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()
ta.Prompt = " "
ta.ShowLineNumbers = false
ta.CharLimit = -1
if existing != nil {
ta.SetValue(existing.Value())
// ta.SetWidth(existing.Width())
ta.SetHeight(existing.Height())
}
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 := createTextArea(nil)
return &editorComponent{
app: app,
textarea: ta,
spinner: s,
interruptKeyInDebounce: false,
}
}