Method saveCheckpoint

cli/rewind.go:28–63

saveCheckpoint creates a checkpoint of the current conversation state. Called automatically before each user message is sent to the LLM.

()

// saveCheckpoint creates a checkpoint of the current conversation state.
// Called automatically before each user message is sent to the LLM.
func (cli *ChatCLI) saveCheckpoint() {
	// Build a short label from the last user message
	label := ""
	for i := len(cli.history) - 1; i >= 0; i-- {
		if cli.history[i].Role == "user" {
			label = cli.history[i].Content
			break
		}
	}
	if label == "" {
		label = "(start)"
	}
	// Truncate label
	label = strings.ReplaceAll(label, "\n", " ")
	if len(label) > 60 {
		label = label[:57] + "..."
	}

	// Deep copy history
	snapshot := make([]models.Message, len(cli.history))
	copy(snapshot, cli.history)

	cp := conversationCheckpoint{
		Timestamp: time.Now(),
		Label:     label,
		History:   snapshot,
		MsgCount:  len(cli.history),
	}

	cli.checkpoints = append(cli.checkpoints, cp)

	// Keep only last N checkpoints
	if len(cli.checkpoints) > maxCheckpoints {
		cli.checkpoints = cli.checkpoints[len(cli.checkpoints)-maxCheckpoints:]
	}
}

// showRewindMenu displays the rewind menu and handles user selection.
// Returns true if a rewind was performed.