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package page
import (
"context"
"strings"
"github.com/charmbracelet/bubbles/key"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
"github.com/sst/opencode/internal/app"
"github.com/sst/opencode/internal/completions"
"github.com/sst/opencode/internal/components/chat"
"github.com/sst/opencode/internal/components/dialog"
"github.com/sst/opencode/internal/layout"
"github.com/sst/opencode/internal/state"
"github.com/sst/opencode/internal/status"
"github.com/sst/opencode/internal/util"
"github.com/sst/opencode/pkg/client"
)
var ChatPage PageID = "chat"
type chatPage struct {
app *app.App
editor layout.Container
messages layout.Container
layout layout.SplitPaneLayout
completionDialog dialog.CompletionDialog
showCompletionDialog bool
}
type ChatKeyMap struct {
NewSession key.Binding
Cancel key.Binding
ToggleTools key.Binding
ShowCompletionDialog key.Binding
}
var keyMap = ChatKeyMap{
NewSession: key.NewBinding(
key.WithKeys("ctrl+n"),
key.WithHelp("ctrl+n", "new session"),
),
Cancel: key.NewBinding(
key.WithKeys("esc"),
key.WithHelp("esc", "cancel"),
),
ToggleTools: key.NewBinding(
key.WithKeys("ctrl+h"),
key.WithHelp("ctrl+h", "toggle tools"),
),
ShowCompletionDialog: key.NewBinding(
key.WithKeys("/"),
key.WithHelp("/", "Complete"),
),
}
func (p *chatPage) Init() tea.Cmd {
cmds := []tea.Cmd{
p.layout.Init(),
}
cmds = append(cmds, p.completionDialog.Init())
return tea.Batch(cmds...)
}
func (p *chatPage) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
var cmds []tea.Cmd
switch msg := msg.(type) {
case tea.WindowSizeMsg:
cmd := p.layout.SetSize(msg.Width, msg.Height)
cmds = append(cmds, cmd)
case chat.SendMsg:
cmd := p.sendMessage(msg.Text, msg.Attachments)
if cmd != nil {
return p, cmd
}
case dialog.CommandRunCustomMsg:
// Check if the agent is busy before executing custom commands
if p.app.IsBusy() {
status.Warn("Agent is busy, please wait before executing a command...")
return p, nil
}
// Process the command content with arguments if any
content := msg.Content
if msg.Args != nil {
// Replace all named arguments with their values
for name, value := range msg.Args {
placeholder := "$" + name
content = strings.ReplaceAll(content, placeholder, value)
}
}
// Handle custom command execution
cmd := p.sendMessage(content, nil)
if cmd != nil {
return p, cmd
}
case state.SessionSelectedMsg:
cmd := p.setSidebar()
cmds = append(cmds, cmd)
case state.SessionClearedMsg:
cmd := p.setSidebar()
cmds = append(cmds, cmd)
case dialog.CompletionDialogCloseMsg:
p.showCompletionDialog = false
p.app.SetCompletionDialogOpen(false)
case tea.KeyMsg:
switch {
case key.Matches(msg, keyMap.ShowCompletionDialog):
p.showCompletionDialog = true
p.app.SetCompletionDialogOpen(true)
// Continue sending keys to layout->chat
case key.Matches(msg, keyMap.NewSession):
p.app.Session = &client.SessionInfo{}
p.app.Messages = []client.MessageInfo{}
return p, tea.Batch(
p.clearSidebar(),
util.CmdHandler(state.SessionClearedMsg{}),
)
case key.Matches(msg, keyMap.Cancel):
if p.app.Session.Id != "" {
// Cancel the current session's generation process
// This allows users to interrupt long-running operations
p.app.Cancel(context.Background(), p.app.Session.Id)
return p, nil
}
case key.Matches(msg, keyMap.ToggleTools):
return p, util.CmdHandler(chat.ToggleToolMessagesMsg{})
}
}
if p.showCompletionDialog {
context, contextCmd := p.completionDialog.Update(msg)
p.completionDialog = context.(dialog.CompletionDialog)
cmds = append(cmds, contextCmd)
// Doesn't forward event if enter key is pressed
if keyMsg, ok := msg.(tea.KeyMsg); ok {
if keyMsg.String() == "enter" {
return p, tea.Batch(cmds...)
}
}
}
u, cmd := p.layout.Update(msg)
cmds = append(cmds, cmd)
p.layout = u.(layout.SplitPaneLayout)
return p, tea.Batch(cmds...)
}
func (p *chatPage) setSidebar() tea.Cmd {
sidebarContainer := layout.NewContainer(
chat.NewSidebarCmp(p.app),
layout.WithPadding(1, 1, 1, 1),
)
return tea.Batch(p.layout.SetRightPanel(sidebarContainer), sidebarContainer.Init())
}
func (p *chatPage) clearSidebar() tea.Cmd {
return p.layout.ClearRightPanel()
}
func (p *chatPage) sendMessage(text string, attachments []app.Attachment) tea.Cmd {
var cmds []tea.Cmd
cmd := p.app.SendChatMessage(context.Background(), text, attachments)
cmds = append(cmds, cmd)
cmd = p.setSidebar()
if cmd != nil {
cmds = append(cmds, cmd)
}
return tea.Batch(cmds...)
}
func (p *chatPage) SetSize(width, height int) tea.Cmd {
return p.layout.SetSize(width, height)
}
func (p *chatPage) GetSize() (int, int) {
return p.layout.GetSize()
}
func (p *chatPage) View() string {
layoutView := p.layout.View()
if p.showCompletionDialog {
_, layoutHeight := p.layout.GetSize()
editorWidth, editorHeight := p.editor.GetSize()
p.completionDialog.SetWidth(editorWidth)
overlay := p.completionDialog.View()
layoutView = layout.PlaceOverlay(
0,
layoutHeight-editorHeight-lipgloss.Height(overlay),
overlay,
layoutView,
false,
)
}
return layoutView
}
func (p *chatPage) BindingKeys() []key.Binding {
bindings := layout.KeyMapToSlice(keyMap)
bindings = append(bindings, p.messages.BindingKeys()...)
bindings = append(bindings, p.editor.BindingKeys()...)
return bindings
}
func NewChatPage(app *app.App) tea.Model {
cg := completions.NewFileAndFolderContextGroup()
completionDialog := dialog.NewCompletionDialogCmp(cg)
messagesContainer := layout.NewContainer(
chat.NewMessagesCmp(app),
layout.WithPadding(1, 1, 0, 1),
)
editorContainer := layout.NewContainer(
chat.NewEditorCmp(app),
layout.WithBorder(true, false, false, false),
)
return &chatPage{
app: app,
editor: editorContainer,
messages: messagesContainer,
completionDialog: completionDialog,
layout: layout.NewSplitPane(
layout.WithLeftPanel(messagesContainer),
layout.WithBottomPanel(editorContainer),
),
}
}
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