package cmd

import (
	"fmt"

	"github.com/spf13/cobra"
)

var syncCmd = &cobra.Command{
	Use:   "sync",
	Short: "Synchronize with configured sources",
	Long: `Fetch updates from all configured sources.

Checks each source for changes (using hash or timestamp comparison)
and updates the index accordingly.

Examples:
  devour sync                    # Sync all sources
  devour sync --source my-docs   # Sync specific source
  devour sync --rebuild          # Full rebuild`,
	RunE: runSync,
}

var (
	syncSource  string
	syncRebuild bool
	syncForce   bool
)

func init() {
	syncCmd.Flags().StringVarP(&syncSource, "source", "s", "", "sync specific source only")
	syncCmd.Flags().BoolVar(&syncRebuild, "rebuild", false, "rebuild entire index")
	syncCmd.Flags().BoolVarP(&syncForce, "force", "f", false, "force sync even if no changes detected")
}

func runSync(cmd *cobra.Command, args []string) error {
	if syncRebuild {
		fmt.Println("🔄 Rebuilding index from all sources...")
	} else {
		fmt.Println("🔄 Syncing with configured sources...")
	}

	if syncSource != "" {
		fmt.Printf("   Source: %s\n", syncSource)
	}

	// TODO: Implement actual sync logic
	// 1. Load sources from config
	// 2. For each source:
	//    a. Check for changes (hash/timestamp)
	//    b. If changes detected or --force:
	//       - Scrape updated content
	//       - Re-generate embeddings
	//       - Update index
	// 3. Update metadata

	fmt.Println()
	fmt.Println("⚠️  Sync functionality not yet implemented")
	fmt.Println("   Configure sources in devour.yaml first")

	return nil
}