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package chat
import (
"os"
"os/exec"
"github.com/charmbracelet/bubbles/key"
"github.com/charmbracelet/bubbles/textarea"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
"github.com/kujtimiihoxha/opencode/internal/app"
"github.com/kujtimiihoxha/opencode/internal/session"
"github.com/kujtimiihoxha/opencode/internal/tui/layout"
"github.com/kujtimiihoxha/opencode/internal/tui/styles"
"github.com/kujtimiihoxha/opencode/internal/tui/util"
)
type editorCmp struct {
app *app.App
session session.Session
textarea textarea.Model
}
type FocusEditorMsg bool
type focusedEditorKeyMaps struct {
Send key.Binding
OpenEditor key.Binding
Blur key.Binding
}
type bluredEditorKeyMaps struct {
Send key.Binding
Focus key.Binding
OpenEditor key.Binding
}
var focusedKeyMaps = focusedEditorKeyMaps{
Send: key.NewBinding(
key.WithKeys("ctrl+s"),
key.WithHelp("ctrl+s", "send message"),
),
Blur: key.NewBinding(
key.WithKeys("esc"),
key.WithHelp("esc", "focus messages"),
),
OpenEditor: key.NewBinding(
key.WithKeys("ctrl+e"),
key.WithHelp("ctrl+e", "open editor"),
),
}
var bluredKeyMaps = bluredEditorKeyMaps{
Send: key.NewBinding(
key.WithKeys("ctrl+s", "enter"),
key.WithHelp("ctrl+s/enter", "send message"),
),
Focus: key.NewBinding(
key.WithKeys("i"),
key.WithHelp("i", "focus editor"),
),
OpenEditor: key.NewBinding(
key.WithKeys("ctrl+e"),
key.WithHelp("ctrl+e", "open editor"),
),
}
func openEditor() tea.Cmd {
editor := os.Getenv("EDITOR")
if editor == "" {
editor = "nvim"
}
tmpfile, err := os.CreateTemp("", "msg_*.md")
if err != nil {
return util.ReportError(err)
}
tmpfile.Close()
c := exec.Command(editor, tmpfile.Name()) //nolint:gosec
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)
}
os.Remove(tmpfile.Name())
return SendMsg{
Text: string(content),
}
})
}
func (m *editorCmp) Init() tea.Cmd {
return textarea.Blink
}
func (m *editorCmp) send() tea.Cmd {
if m.app.CoderAgent.IsSessionBusy(m.session.ID) {
return util.ReportWarn("Agent is working, please wait...")
}
value := m.textarea.Value()
m.textarea.Reset()
m.textarea.Blur()
if value == "" {
return nil
}
return tea.Batch(
util.CmdHandler(SendMsg{
Text: value,
}),
)
}
func (m *editorCmp) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
var cmd tea.Cmd
switch msg := msg.(type) {
case SessionSelectedMsg:
if msg.ID != m.session.ID {
m.session = msg
}
return m, nil
case FocusEditorMsg:
if msg {
m.textarea.Focus()
return m, tea.Batch(textarea.Blink, util.CmdHandler(EditorFocusMsg(true)))
}
case tea.KeyMsg:
if key.Matches(msg, focusedKeyMaps.OpenEditor) {
if m.app.CoderAgent.IsSessionBusy(m.session.ID) {
return m, util.ReportWarn("Agent is working, please wait...")
}
return m, openEditor()
}
// if the key does not match any binding, return
if m.textarea.Focused() && key.Matches(msg, focusedKeyMaps.Send) {
return m, m.send()
}
if !m.textarea.Focused() && key.Matches(msg, bluredKeyMaps.Send) {
return m, m.send()
}
if m.textarea.Focused() && key.Matches(msg, focusedKeyMaps.Blur) {
m.textarea.Blur()
return m, util.CmdHandler(EditorFocusMsg(false))
}
if !m.textarea.Focused() && key.Matches(msg, bluredKeyMaps.Focus) {
m.textarea.Focus()
return m, tea.Batch(textarea.Blink, util.CmdHandler(EditorFocusMsg(true)))
}
}
m.textarea, cmd = m.textarea.Update(msg)
return m, cmd
}
func (m *editorCmp) View() string {
style := lipgloss.NewStyle().Padding(0, 0, 0, 1).Bold(true)
return lipgloss.JoinHorizontal(lipgloss.Top, style.Render(">"), m.textarea.View())
}
func (m *editorCmp) SetSize(width, height int) tea.Cmd {
m.textarea.SetWidth(width - 3) // account for the prompt and padding right
m.textarea.SetHeight(height)
return nil
}
func (m *editorCmp) GetSize() (int, int) {
return m.textarea.Width(), m.textarea.Height()
}
func (m *editorCmp) BindingKeys() []key.Binding {
bindings := []key.Binding{}
if m.textarea.Focused() {
bindings = append(bindings, layout.KeyMapToSlice(focusedKeyMaps)...)
} else {
bindings = append(bindings, layout.KeyMapToSlice(bluredKeyMaps)...)
}
bindings = append(bindings, layout.KeyMapToSlice(m.textarea.KeyMap)...)
return bindings
}
func NewEditorCmp(app *app.App) tea.Model {
ti := textarea.New()
ti.Prompt = " "
ti.ShowLineNumbers = false
ti.BlurredStyle.Base = ti.BlurredStyle.Base.Background(styles.Background)
ti.BlurredStyle.CursorLine = ti.BlurredStyle.CursorLine.Background(styles.Background)
ti.BlurredStyle.Placeholder = ti.BlurredStyle.Placeholder.Background(styles.Background)
ti.BlurredStyle.Text = ti.BlurredStyle.Text.Background(styles.Background)
ti.FocusedStyle.Base = ti.FocusedStyle.Base.Background(styles.Background)
ti.FocusedStyle.CursorLine = ti.FocusedStyle.CursorLine.Background(styles.Background)
ti.FocusedStyle.Placeholder = ti.FocusedStyle.Placeholder.Background(styles.Background)
ti.FocusedStyle.Text = ti.BlurredStyle.Text.Background(styles.Background)
ti.CharLimit = -1
ti.Focus()
return &editorCmp{
app: app,
textarea: ti,
}
}
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