tui: basic conversation selection and navigation

pkg/tui/chat.go

@@ -255,6 +255,7 @@ func (m chatModel) Update(msg tea.Msg) (chatModel, tea.Cmd) {
 	case msgMessagesLoaded:
 		m.setMessages(msg)
 		m.updateContent()
+		m.content.GotoBottom()
 	case msgResponseChunk:
 		chunk := string(msg)
 		last := len(m.messages) - 1

pkg/tui/conversations.go

@@ -21,14 +21,17 @@ type loadedConversation struct {
 type (
 	// sent when conversation list is loaded
 	msgConversationsLoaded ([]loadedConversation)
-	// sent when each coversation's 'last reply' is loaded
+	// sent when a conversation is selected
+	msgConversationSelected models.Conversation
 )
 
 type conversationsModel struct {
 	basemodel
 
 	conversations []loadedConversation
-	content       viewport.Model
+	cursor        int // index of the currently selected message message
+
+	content viewport.Model
 }
 
 func newConversationsModel(tui *model) conversationsModel {
@@ -48,10 +51,23 @@ func newConversationsModel(tui *model) conversationsModel {
 func (m *conversationsModel) handleInput(msg tea.KeyMsg) (bool, tea.Cmd) {
 	switch msg.String() {
 	case "enter":
-		// how to notify chats model
-		return true, func() tea.Msg {
-			return msgChangeState(stateChat)
+		if len(m.conversations) > 0 && m.cursor < len(m.conversations) {
+			return true, func() tea.Msg {
+				return msgConversationSelected(m.conversations[m.cursor].conv)
+			}
 		}
+	case "j", "down":
+		if m.cursor < len(m.conversations)-1 {
+			m.cursor++
+			m.content.SetContent(m.renderConversationList())
+		}
+		return true, nil
+	case "k", "up":
+		if m.cursor > 0 {
+			m.cursor--
+			m.content.SetContent(m.renderConversationList())
+		}
+		return true, nil
 	case "n":
 		// new conversation
 	case "d":
@@ -80,8 +96,10 @@ func (m conversationsModel) Update(msg tea.Msg) (conversationsModel, tea.Cmd) {
 	switch msg := msg.(type) {
 	case msgChangeState:
 		cmds = append(cmds, m.loadConversations())
+		m.content.SetContent(m.renderConversationList())
 	case tea.WindowSizeMsg:
 		m.handleResize(msg.Width, msg.Height)
+		m.content.SetContent(m.renderConversationList())
 	case msgConversationsLoaded:
 		m.conversations = msg
 		m.content.SetContent(m.renderConversationList())
@@ -175,17 +193,17 @@ func (m *conversationsModel) renderConversationList() string {
 		PaddingLeft(1).
 		Bold(true)
 
-	conversationHeadingStyle := lipgloss.NewStyle().
-		MarginBottom(1).
-		PaddingLeft(2)
+	itemStyle := lipgloss.NewStyle().
+		MarginBottom(1)
 
-	ageStyle := lipgloss.NewStyle().Faint(true)
+	ageStyle := lipgloss.NewStyle().Faint(true).SetString()
 	titleStyle := lipgloss.NewStyle().Bold(true)
-	untitledStyle := titleStyle.Copy().Italic(true).Faint(true).SetString("(untitled)")
+	untitledStyle := lipgloss.NewStyle().Faint(true).Italic(true)
+	selectedStyle := lipgloss.NewStyle().Faint(true).Foreground(lipgloss.Color("6"))
 
 	var currentCategory string
 	sb := &strings.Builder{}
-	for _, c := range m.conversations {
+	for i, c := range m.conversations {
 		lastReplyAge := now.Sub(c.lastReply.CreatedAt)
 
 		var category string
@@ -196,21 +214,32 @@ func (m *conversationsModel) renderConversationList() string {
 			}
 		}
 
+		// print the category
 		if category != currentCategory {
 			currentCategory = category
 			fmt.Fprintf(sb, "%s\n", categoryStyle.Render(currentCategory))
 		}
 
-		tstyle := titleStyle
+		tStyle := titleStyle.Copy()
+		padding := "  "
 		if c.conv.Title == "" {
-			tstyle = untitledStyle
+			tStyle = tStyle.Inherit(untitledStyle).SetString("(untitled)")
 		}
+		if i == m.cursor {
+			tStyle = tStyle.Inherit(selectedStyle)
+		}
+
+		title := tStyle.Width(m.width - 3).PaddingLeft(2).Render(c.conv.Title)
+		if i == m.cursor {
+			title = ">" + title[1:]
+		}
+
 		heading := fmt.Sprintf(
 			"%s\n%s",
-			tstyle.Render(c.conv.Title),
-			ageStyle.Render(util.HumanTimeElapsedSince(lastReplyAge)),
+			title,
+			padding + ageStyle.Render(util.HumanTimeElapsedSince(lastReplyAge)),
 		)
-		sb.WriteString(conversationHeadingStyle.Render(heading))
+		sb.WriteString(itemStyle.Render(heading))
 		sb.WriteRune('\n')
 	}
 	return sb.String()

pkg/tui/tui.go

@@ -132,6 +132,11 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			m.conversations.handleResize(m.width, m.height)
 		}
 		m.state = state(msg)
+	case msgConversationSelected:
+		m.opts.convShortname = msg.ShortName.String
+		cmds = append(cmds, func() tea.Msg {
+			return msgChangeState(stateChat)
+		})
 	case tea.WindowSizeMsg:
 		m.width, m.height = msg.Width, msg.Height
 	case msgError: