package main

import (
	"flag"
	"fmt"
	"hugo-medialog/internal/books"
	"hugo-medialog/internal/games"
	"hugo-medialog/internal/movies"
	"hugo-medialog/internal/music"
	"hugo-medialog/internal/series"
	"hugo-medialog/utils"
	"os"
)

func main() {
	// Load .env file
	utils.LoadConfig()

	// --media parameter
	media := flag.String("media", "", "Specify the media type to process: movies, series, books, games, or music")
	update := flag.Bool("update", false, "Run in update mode to update existing entries")

	// Define custom help option
	help := flag.Bool("help", false, "Display this help message")
	flag.BoolVar(help, "h", false, "Display this help message") // support -h as well
	flag.Parse()

	// Show help message if -h or --help is specified
	if *help {
		printHelp()
		os.Exit(0)
	}

	if *media == "" {
		processAll(*update)
	} else {
		switch *media {
		case "movies":
			processMovies(*update)
		case "series":
			processSeries(*update)
		case "books":
			processBooks(*update)
		case "games":
			processGames(*update)
		case "music":
			processMusic(*update)
		default:
			fmt.Printf("Invalid media type: %s. Please use movies, series, books, games, or music.\n", *media)
			printHelp()
			os.Exit(1)
		}
	}
}

func processAll(update bool) {
	processMovies(update)
	processSeries(update)
	processBooks(update)
	processGames(update)
	processMusic(update)
}

func processMovies(update bool) {
	moviesList, err := movies.LoadMovies()
	if err != nil {
		fmt.Printf("Error reading movies file: %v\n", err)
		return
	}
	err = movies.ProcessMovies(moviesList, update)
	if err != nil {
		fmt.Printf("Error processing movies: %v\n", err)
	}
}

func processSeries(update bool) {
	seriesList, err := series.LoadSeries()
	if err != nil {
		fmt.Printf("Error reading series file: %v\n", err)
		return
	}
	err = series.ProcessSeries(seriesList, update)
	if err != nil {
		fmt.Printf("Error processing series: %v\n", err)
	}
}

func processBooks(update bool) {
	booksList, err := books.LoadBooks()
	if err != nil {
		fmt.Printf("Error reading books file: %v\n", err)
		return
	}
	err = books.ProcessBooks(booksList, update)
	if err != nil {
		fmt.Printf("Error processing books: %v\n", err)
	}
}

func processGames(update bool) {
	gamesList, err := games.LoadGames()
	if err != nil {
		fmt.Printf("Error reading games file: %v\n", err)
		return
	}
	err = games.ProcessGames(gamesList, update)
	if err != nil {
		fmt.Printf("Error processing games: %v\n", err)
	}
}

func processMusic(update bool) {
	albumList, err := music.LoadAlbums()
	if err != nil {
		fmt.Printf("Error reading music file: %v\n", err)
		return
	}
	err = music.ProcessAlbum(albumList, update)
	if err != nil {
		fmt.Printf("Error processing music: %v\n", err)
	}
}

func printHelp() {
	fmt.Println(`Usage: go run main.go [--media mediatype] [--update]

Description:
    This command allows you to manage multimedia files and update their data in the system.

Options:
    --media <mediatype>    Specifies the type of media to process. 
                           Possible values are:
                             - movies:    Processes movie files.
                             - series:    Processes series files.
                             - books:     Processes book files.
                             - games:     Processes game files.
                             - music:     Processes music files.
                           If not specified, all media types will be processed.

    --update               Runs in update mode to refresh existing media entries.
                           This option is optional and requires no value.
    
    -h, --help             Displays this help message and exits.

Usage examples:
    go run main.go --media movies           Processes only movie files.
    go run main.go --update                 Updates all multimedia files.
    go run main.go --media series --update  Processes and updates series files.`)
}