Chat view cleanup

Replace `waitingForReply` and the `status` string with the `state`
variable.

pkg/tui/views/chat/view.go

@@ -139,7 +139,7 @@ func (m *Model) renderMessage(i int) string {
 	}
 
 	// Show the assistant's cursor
-	if m.waitingForReply && i == len(m.messages)-1 && msg.Role == models.MessageRoleAssistant {
+	if m.state == pendingResponse && i == len(m.messages)-1 && msg.Role == models.MessageRoleAssistant {
 		sb.WriteString(m.replyCursor.View())
 	}
 
@@ -237,7 +237,7 @@ func (m *Model) conversationMessagesView() string {
 		lineCnt += lipgloss.Height(heading)
 
 		var rendered string
-		if m.waitingForReply && i == len(m.messages)-1 {
+		if m.state == pendingResponse && i == len(m.messages)-1 {
 			// do a direct render of final (assistant) message to handle the
 			// assistant cursor blink
 			rendered = m.renderMessage(i)
@@ -251,7 +251,7 @@ func (m *Model) conversationMessagesView() string {
 	}
 
 	// Render a placeholder for the incoming assistant reply
-	if m.waitingForReply && (len(m.messages) == 0 || m.messages[len(m.messages)-1].Role != models.MessageRoleAssistant) {
+	if m.state == pendingResponse && (len(m.messages) == 0 || m.messages[len(m.messages)-1].Role != models.MessageRoleAssistant) {
 		heading := m.renderMessageHeading(-1, &models.Message{
 			Role: models.MessageRoleAssistant,
 		})
@@ -289,9 +289,12 @@ func (m *Model) footerView() string {
 		saving = savingStyle.Foreground(lipgloss.Color("1")).Render("❌💾")
 	}
 
-	status := m.status
-	if m.waitingForReply {
-		status += m.spinner.View()
+	var status string
+	switch m.state {
+	case pendingResponse:
+		status = "Press ctrl+c to cancel" + m.spinner.View()
+	default:
+		status = "Press ctrl+s to send"
 	}
 
 	leftSegments := []string{