package app

import (
	"fmt"
	"os"

	"agentu/internal/session"
)

func initializeSession(modelManager *session.Manager, resumeID string) error {
	if resumeID != "" {
		if err := modelManager.Resume(resumeID); err != nil {
			return fmt.Errorf("resume session: %w", err)
		}
		return nil
	}
	if _, err := modelManager.NewSession(); err != nil {
		return fmt.Errorf("start new session: %w", err)
	}
	return nil
}

func printExitSession(m *session.Manager) {
	if m == nil {
		return
	}
	_ = m.Save()
	id := m.CurrentSessionID()
	name := m.CurrentSessionName()
	if id != "" {
		if name != "" && name != id {
			fmt.Fprintf(os.Stderr, "session: %s (%s)\n", id, name)
		} else {
			fmt.Fprintf(os.Stderr, "session: %s\n", id)
		}
		fmt.Fprintf(os.Stderr, "resume:  agentu --resume %s\n", id)
	}
}