package cmd

import (
	"fmt"
	"log"
	"os"

	"github.com/spf13/cobra"
	"github.com/spf13/viper"

	"github.com/insertr/insertr/internal/content"
)

var enhanceCmd = &cobra.Command{
	Use:   "enhance [input-dir]",
	Short: "Enhance HTML files by injecting content from database",
	Long: `Enhance processes HTML files and injects latest content from the database
while adding editing capabilities. This is the core build-time enhancement
process that transforms static HTML into an editable CMS.`,
	Args: cobra.ExactArgs(1),
	Run:  runEnhance,
}

var (
	outputDir   string
	mockContent bool
)

func init() {
	enhanceCmd.Flags().StringVarP(&outputDir, "output", "o", "./dist", "Output directory for enhanced files")
	enhanceCmd.Flags().BoolVar(&mockContent, "mock", true, "Use mock content for development")

	// Bind flags to viper
	viper.BindPFlag("build.output", enhanceCmd.Flags().Lookup("output"))
	viper.BindPFlag("mock_content", enhanceCmd.Flags().Lookup("mock"))
}

func runEnhance(cmd *cobra.Command, args []string) {
	inputDir := args[0]

	// Validate input directory
	if _, err := os.Stat(inputDir); os.IsNotExist(err) {
		log.Fatalf("Input directory does not exist: %s", inputDir)
	}

	// Get configuration values
	dbPath := viper.GetString("database.path")
	apiURL := viper.GetString("api.url")
	apiKey := viper.GetString("api.key")
	siteID := viper.GetString("site_id")
	mockContent := viper.GetBool("mock_content")

	// Create content client
	var client content.ContentClient
	if mockContent || (apiURL == "" && dbPath == "") {
		fmt.Printf("🧪 Using mock content for development\n")
		client = content.NewMockClient()
	} else if apiURL != "" {
		fmt.Printf("🌐 Using content API: %s\n", apiURL)
		client = content.NewHTTPClient(apiURL, apiKey)
	} else {
		fmt.Printf("🗄️ Using database: %s\n", dbPath)
		// TODO: Implement database client for direct DB access
		fmt.Printf("⚠️  Direct database access not yet implemented, using mock content\n")
		client = content.NewMockClient()
	}

	// Create enhancer
	enhancer := content.NewEnhancer(client, siteID)

	fmt.Printf("🚀 Starting enhancement process...\n")
	fmt.Printf("📁 Input: %s\n", inputDir)
	fmt.Printf("📁 Output: %s\n", outputDir)
	fmt.Printf("🏷️  Site ID: %s\n\n", siteID)

	// Enhance directory
	if err := enhancer.EnhanceDirectory(inputDir, outputDir); err != nil {
		log.Fatalf("Enhancement failed: %v", err)
	}

	fmt.Printf("\n✅ Enhancement complete! Enhanced files available in: %s\n", outputDir)
}