"""
Music Playlist Manager - Main Program
"""

from library import MusicLibrary
from parameters import APP_TITLE, APP_VERSION

def create_sample_library(library):
    """
    Create sample music library
    """
    songs_data = [
        ("Bohemian Rhapsody", "Queen", "A Night at the Opera", 354, "Rock", 1975),
        ("Imagine", "John Lennon", "Imagine", 183, "Pop", 1971),
        ("Billie Jean", "Michael Jackson", "Thriller", 294, "Pop", 1982),
        ("Smells Like Teen Spirit", "Nirvana", "Nevermind", 301, "Rock", 1991),
        ("Sweet Child O' Mine", "Guns N' Roses", "Appetite for Destruction", 356, "Rock", 1987),
        ("Hotel California", "Eagles", "Hotel California", 391, "Rock", 1977),
        ("Stairway to Heaven", "Led Zeppelin", "Led Zeppelin IV", 482, "Rock", 1971),
        ("Purple Rain", "Prince", "Purple Rain", 518, "R&B", 1984),
        ("Like a Rolling Stone", "Bob Dylan", "Highway 61 Revisited", 369, "Rock", 1965),
        ("What's Going On", "Marvin Gaye", "What's Going On", 232, "R&B", 1971)
    ]
    
    for title, artist, album, duration, genre, year in songs_data:
        song = library.add_song(title, artist, album)
        song.set_duration(duration)
        song.set_genre(genre)
        song.set_year(year)
        
        # Simulate some plays and ratings
        import random
        plays = random.randint(5, 50)
        for _ in range(plays):
            song.play()
        song.rate(random.randint(3, 5))
    
    print(f"Added {len(songs_data)} songs to library")

def print_separator(char='=', length=70):
    """
    Print separator line
    """
    print(char * length)

def main():
    """
    Main program execution
    """
    print_separator()
    print(f"{APP_TITLE} v{APP_VERSION}")
    print_separator()
    print("")
    
    # Create music library
    library = MusicLibrary()
    
    # Create sample library
    print("Building music library...")
    create_sample_library(library)
    print("")
    
    # Display library statistics
    stats = library.get_library_statistics()
    print_separator()
    print("Library Statistics")
    print_separator()
    print(f"Total Songs: {stats['total_songs']}")
    print(f"Total Artists: {stats['total_artists']}")
    print(f"Total Albums: {stats['total_albums']}")
    print(f"Total Playlists: {stats['total_playlists']}")
    print(f"Total Duration: {stats['total_duration_hours']:.2f} hours")
    print(f"Total Plays: {stats['total_plays']}")
    print("")
    
    # Display all songs
    print_separator()
    print("Song Library")
    print_separator()
    
    for song in list(library.songs.values())[:5]:
        print(f"{song.title} - {song.artist}")
        print(f"  Album: {song.album} ({song.year})")
        print(f"  Duration: {song.get_duration_string()}")
        print(f"  Genre: {song.genre}")
        print(f"  Plays: {song.play_count} | Rating: {song.rating}/5")
        print("")
    
    # Create playlists
    print_separator()
    print("Creating Playlists")
    print_separator()
    
    rock_playlist = library.create_playlist("Classic Rock Hits")
    rock_playlist.set_description("Best rock songs from the 60s to 90s")
    
    # Add rock songs to playlist
    for song in library.get_songs_by_genre("Rock"):
        rock_playlist.add_song(song.song_id)
    
    print(f"Created: {rock_playlist}")
    print("")
    
    favorites_playlist = library.create_playlist("My Favorites")
    
    # Add top rated songs
    top_songs = library.get_most_played_songs(5)
    for song in top_songs:
        favorites_playlist.add_song(song.song_id)
        song.toggle_favorite()
    
    print(f"Created: {favorites_playlist}")
    print("")
    
    # Display playlists
    print_separator()
    print("Playlists")
    print_separator()
    
    for playlist in library.playlists.values():
        print(f"\n{playlist.name}")
        print(f"  Description: {playlist.description}")
        print(f"  Songs: {playlist.get_song_count()}")
        print(f"  Created: {playlist.created_date.strftime('%Y-%m-%d')}")
        
        # Show first 3 songs in playlist
        playlist_songs = library.get_playlist_songs(playlist.playlist_id)
        if playlist_songs:
            print("  Tracks:")
            for i, song in enumerate(playlist_songs[:3], 1):
                print(f"    {i}. {song.title} - {song.artist}")
    
    print("")
    
    # Display most played songs
    print_separator()
    print("Most Played Songs")
    print_separator()
    
    most_played = library.get_most_played_songs(5)
    for i, song in enumerate(most_played, 1):
        print(f"{i}. {song.title} - {song.artist}")
        print(f"   Plays: {song.play_count} | Rating: {song.rating}/5")
    
    print("")
    
    # Search example
    print_separator()
    print("Search Results for 'Hotel'")
    print_separator()
    
    results = library.search_songs("Hotel")
    for song in results:
        print(f"  {song}")
    
    print("")

if __name__ == "__main__":
    main()