"""Players blueprint for player management and display."""
from flask import Blueprint, render_template, request, redirect, url_for, flash, jsonify
from flask_login import login_required
from werkzeug.security import generate_password_hash
import secrets
from typing import Optional, List

from app.extensions import db, cache
from app.models import Player, Content, PlayerFeedback, Playlist
from app.utils.logger import log_action
from app.utils.group_player_management import get_player_status_info

players_bp = Blueprint('players', __name__, url_prefix='/players')


@players_bp.route('/')
@players_bp.route('/list')
@login_required
def list():
    """Display list of all players."""
    try:
        players = Player.query.order_by(Player.name).all()
        playlists = Playlist.query.all()
        
        # Get player status for each player
        player_statuses = {}
        for player in players:
            status_info = get_player_status_info(player.id)
            player_statuses[player.id] = status_info
        
        return render_template('players/players_list.html',
                             players=players,
                             playlists=playlists,
                             player_statuses=player_statuses)
    except Exception as e:
        log_action('error', f'Error loading players list: {str(e)}')
        flash('Error loading players list.', 'danger')
        return redirect(url_for('main.dashboard'))


@players_bp.route('/add', methods=['GET', 'POST'])
@login_required
def add_player():
    """Add a new player."""
    if request.method == 'GET':
        playlists = Playlist.query.filter_by(is_active=True).order_by(Playlist.name).all()
        return render_template('players/add_player.html', playlists=playlists)
    
    try:
        name = request.form.get('name', '').strip()
        hostname = request.form.get('hostname', '').strip()
        location = request.form.get('location', '').strip()
        password = request.form.get('password', '').strip()
        quickconnect_code = request.form.get('quickconnect_code', '').strip()
        orientation = request.form.get('orientation', 'Landscape')
        playlist_id = request.form.get('playlist_id', '').strip()
        
        # Validation
        if not name or len(name) < 3:
            flash('Player name must be at least 3 characters long.', 'warning')
            return redirect(url_for('players.add_player'))
        
        if not hostname or len(hostname) < 3:
            flash('Hostname must be at least 3 characters long.', 'warning')
            return redirect(url_for('players.add_player'))
        
        # Check if hostname already exists
        existing_player = Player.query.filter_by(hostname=hostname).first()
        if existing_player:
            flash(f'A player with hostname "{hostname}" already exists.', 'warning')
            return redirect(url_for('players.add_player'))
        
        if not quickconnect_code:
            flash('Quick Connect Code is required.', 'warning')
            return redirect(url_for('players.add_player'))
        
        # Generate unique auth code
        auth_code = secrets.token_urlsafe(32)
        
        # Create player
        new_player = Player(
            name=name,
            hostname=hostname,
            location=location or None,
            auth_code=auth_code,
            orientation=orientation,
            playlist_id=int(playlist_id) if playlist_id else None
        )
        
        # Set password if provided
        if password:
            new_player.set_password(password)
        else:
            # Use quickconnect code as default password
            new_player.set_password(quickconnect_code)
        
        # Set quickconnect code
        new_player.set_quickconnect_code(quickconnect_code)
        
        db.session.add(new_player)
        db.session.commit()
        
        log_action('info', f'Player "{name}" (hostname: {hostname}) created')
        
        # Flash detailed success message
        success_msg = f'''
        Player "{name}" created successfully!<br>
        <strong>Auth Code:</strong> {auth_code}<br>
        <strong>Hostname:</strong> {hostname}<br>
        <strong>Quick Connect:</strong> {quickconnect_code}<br>
        <small>Configure the player with these credentials in app_config.json</small>
        '''
        flash(success_msg, 'success')
        
        return redirect(url_for('players.list'))
        
    except Exception as e:
        db.session.rollback()
        log_action('error', f'Error creating player: {str(e)}')
        flash('Error creating player. Please try again.', 'danger')
        return redirect(url_for('players.add_player'))


@players_bp.route('/<int:player_id>/edit', methods=['GET', 'POST'])
@login_required
def edit_player(player_id: int):
    """Edit player details."""
    player = Player.query.get_or_404(player_id)
    
    if request.method == 'GET':
        return render_template('players/edit_player.html', player=player)
    
    try:
        name = request.form.get('name', '').strip()
        location = request.form.get('location', '').strip()
        
        # Validation
        if not name or len(name) < 3:
            flash('Player name must be at least 3 characters long.', 'warning')
            return redirect(url_for('players.edit_player', player_id=player_id))
        
        # Update player
        player.name = name
        player.location = location or None
        db.session.commit()
        
        # Clear cache for this player
        cache.delete_memoized(get_player_playlist, player_id)
        
        log_action('info', f'Player "{name}" (ID: {player_id}) updated')
        flash(f'Player "{name}" updated successfully.', 'success')
        
        return redirect(url_for('players.list'))
        
    except Exception as e:
        db.session.rollback()
        log_action('error', f'Error updating player: {str(e)}')
        flash('Error updating player. Please try again.', 'danger')
        return redirect(url_for('players.edit_player', player_id=player_id))


@players_bp.route('/<int:player_id>/delete', methods=['POST'])
@login_required
def delete_player(player_id: int):
    """Delete a player."""
    try:
        player = Player.query.get_or_404(player_id)
        player_name = player.name
        
        # Delete associated feedback
        PlayerFeedback.query.filter_by(player_id=player_id).delete()
        
        db.session.delete(player)
        db.session.commit()
        
        # Clear cache
        cache.delete_memoized(get_player_playlist, player_id)
        
        log_action('info', f'Player "{player_name}" (ID: {player_id}) deleted')
        flash(f'Player "{player_name}" deleted successfully.', 'success')
        
    except Exception as e:
        db.session.rollback()
        log_action('error', f'Error deleting player: {str(e)}')
        flash('Error deleting player. Please try again.', 'danger')
    
    return redirect(url_for('players.list'))


@players_bp.route('/<int:player_id>/regenerate-auth', methods=['POST'])
@login_required
def regenerate_auth_code(player_id: int):
    """Regenerate authentication code for a player."""
    try:
        player = Player.query.get_or_404(player_id)
        
        # Generate new auth code
        new_auth_code = secrets.token_urlsafe(16)
        player.auth_code = new_auth_code
        db.session.commit()
        
        log_action('info', f'Auth code regenerated for player "{player.name}" (ID: {player_id})')
        flash(f'New auth code for "{player.name}": {new_auth_code}', 'success')
        
    except Exception as e:
        db.session.rollback()
        log_action('error', f'Error regenerating auth code: {str(e)}')
        flash('Error regenerating auth code. Please try again.', 'danger')
    
    return redirect(url_for('players.list'))


@players_bp.route('/<int:player_id>')
@login_required
def player_page(player_id: int):
    """Redirect to manage player page (combined view)."""
    return redirect(url_for('players.manage_player', player_id=player_id))


@players_bp.route('/<int:player_id>/manage', methods=['GET', 'POST'])
@login_required
def manage_player(player_id: int):
    """Manage player - edit credentials, assign playlist, view logs."""
    player = Player.query.get_or_404(player_id)
    
    if request.method == 'POST':
        action = request.form.get('action')
        
        try:
            if action == 'update_credentials':
                # Update player name, location, orientation, and authentication
                name = request.form.get('name', '').strip()
                location = request.form.get('location', '').strip()
                orientation = request.form.get('orientation', 'Landscape')
                hostname = request.form.get('hostname', '').strip()
                password = request.form.get('password', '').strip()
                quickconnect_code = request.form.get('quickconnect_code', '').strip()
                
                if not name or len(name) < 3:
                    flash('Player name must be at least 3 characters long.', 'warning')
                    return redirect(url_for('players.manage_player', player_id=player_id))
                
                if not hostname or len(hostname) < 3:
                    flash('Hostname must be at least 3 characters long.', 'warning')
                    return redirect(url_for('players.manage_player', player_id=player_id))
                
                # Check if hostname is taken by another player
                if hostname != player.hostname:
                    existing = Player.query.filter_by(hostname=hostname).first()
                    if existing:
                        flash(f'Hostname "{hostname}" is already in use by another player.', 'warning')
                        return redirect(url_for('players.manage_player', player_id=player_id))
                
                # Update basic info
                player.name = name
                player.hostname = hostname
                player.location = location or None
                player.orientation = orientation
                
                # Update password if provided
                if password:
                    player.set_password(password)
                    log_action('info', f'Password updated for player "{name}"')
                
                # Update quickconnect code if provided
                if quickconnect_code:
                    player.set_quickconnect_code(quickconnect_code)
                    log_action('info', f'QuickConnect code updated for player "{name}" to: {quickconnect_code}')
                
                db.session.commit()
                
                log_action('info', f'Player "{name}" (hostname: {hostname}) credentials updated')
                flash(f'Player "{name}" updated successfully.', 'success')
                
            elif action == 'assign_playlist':
                # Assign playlist to player
                playlist_id = request.form.get('playlist_id')
                
                if playlist_id:
                    playlist = Playlist.query.get(int(playlist_id))
                    if playlist:
                        player.playlist_id = int(playlist_id)
                        db.session.commit()
                        cache.delete_memoized(get_player_playlist, player_id)
                        log_action('info', f'Player "{player.name}" assigned to playlist "{playlist.name}"')
                        flash(f'Player assigned to playlist "{playlist.name}".', 'success')
                    else:
                        flash('Invalid playlist selected.', 'warning')
                else:
                    # Unassign playlist
                    player.playlist_id = None
                    db.session.commit()
                    cache.delete_memoized(get_player_playlist, player_id)
                    log_action('info', f'Player "{player.name}" unassigned from playlist')
                    flash('Player unassigned from playlist.', 'success')
                    
        except Exception as e:
            db.session.rollback()
            log_action('error', f'Error managing player: {str(e)}')
            flash('Error updating player. Please try again.', 'danger')
        
        return redirect(url_for('players.manage_player', player_id=player_id))
    
    # GET request - show manage page
    playlists = Playlist.query.order_by(Playlist.name).all()
    
    # Get player's current playlist
    current_playlist = None
    if player.playlist_id:
        current_playlist = Playlist.query.get(player.playlist_id)
    
    # Get recent feedback/logs from player
    recent_logs = PlayerFeedback.query.filter_by(player_id=player_id)\
        .order_by(PlayerFeedback.timestamp.desc())\
        .limit(20)\
        .all()
    
    # Get edited media history from player
    from app.models.player_edit import PlayerEdit
    edited_media = PlayerEdit.query.filter_by(player_id=player_id)\
        .order_by(PlayerEdit.created_at.desc())\
        .limit(20)\
        .all()
    
    # Get player status
    status_info = get_player_status_info(player_id)
    
    return render_template('players/manage_player.html',
                         player=player,
                         playlists=playlists,
                         current_playlist=current_playlist,
                         recent_logs=recent_logs,
                         edited_media=edited_media,
                         status_info=status_info)


@players_bp.route('/<int:player_id>/fullscreen')
def player_fullscreen(player_id: int):
    """Display player fullscreen view (no authentication required for players)."""
    try:
        player = Player.query.get_or_404(player_id)
        
        # Verify auth code if provided
        auth_code = request.args.get('auth')
        if auth_code and auth_code != player.auth_code:
            log_action('warning', f'Invalid auth code attempt for player {player_id}')
            return "Invalid authentication code", 403
        
        # Get player's playlist
        playlist = get_player_playlist(player_id)
        
        return render_template('players/player_fullscreen.html',
                             player=player,
                             playlist=playlist)
    except Exception as e:
        log_action('error', f'Error loading player fullscreen: {str(e)}')
        return "Error loading player", 500


@cache.memoize(timeout=300)  # Cache for 5 minutes
def get_player_playlist(player_id: int) -> List[dict]:
    """Get playlist for a player based on their assigned playlist.
    
    Args:
        player_id: The player's database ID
        
    Returns:
        List of content dictionaries with url, type, duration, and position
    """
    player = Player.query.get(player_id)
    if not player or not player.playlist_id:
        return []
    
    # Get the player's assigned playlist
    playlist_obj = Playlist.query.get(player.playlist_id)
    if not playlist_obj:
        return []
    
    # Get ordered content from the playlist
    ordered_content = playlist_obj.get_content_ordered()
    
    # Build playlist
    playlist = []
    for content in ordered_content:
        playlist.append({
            'id': content.id,
            'url': url_for('static', filename=f'uploads/{content.filename}'),
            'type': content.content_type,
            'duration': getattr(content, '_playlist_duration', content.duration or 10),
            'position': getattr(content, '_playlist_position', 0),
            'muted': getattr(content, '_playlist_muted', True),
            'filename': content.filename
        })
    
    return playlist


@players_bp.route('/<int:player_id>/reorder', methods=['POST'])
@login_required
def reorder_content(player_id: int):
    """Legacy endpoint - Content reordering now handled in playlist management."""
    return jsonify({
        'success': False, 
        'error': 'Content reordering is now managed through playlists. Use the Playlists page to reorder content.'
    }), 400


@players_bp.route('/bulk/delete', methods=['POST'])
@login_required
def bulk_delete_players():
    """Delete multiple players at once."""
    try:
        player_ids = request.json.get('player_ids', [])
        
        if not player_ids:
            return jsonify({'success': False, 'error': 'No players selected'}), 400
        
        # Delete players
        deleted_count = 0
        for player_id in player_ids:
            player = Player.query.get(player_id)
            if player:
                # Delete associated feedback
                PlayerFeedback.query.filter_by(player_id=player_id).delete()
                db.session.delete(player)
                cache.delete_memoized(get_player_playlist, player_id)
                deleted_count += 1
        
        db.session.commit()
        
        log_action('info', f'Bulk deleted {deleted_count} players')
        return jsonify({'success': True, 'deleted': deleted_count})
        
    except Exception as e:
        db.session.rollback()
        log_action('error', f'Error bulk deleting players: {str(e)}')
        return jsonify({'success': False, 'error': str(e)}), 500


@players_bp.route('/bulk/assign-playlist', methods=['POST'])
@login_required
def bulk_assign_playlist():
    """Assign multiple players to a playlist."""
    try:
        player_ids = request.json.get('player_ids', [])
        playlist_id = request.json.get('playlist_id')
        
        if not player_ids:
            return jsonify({'success': False, 'error': 'No players selected'}), 400
        
        # Validate playlist
        if playlist_id:
            playlist = Playlist.query.get(playlist_id)
            if not playlist:
                return jsonify({'success': False, 'error': 'Invalid playlist'}), 400
        
        # Assign players
        updated_count = 0
        for player_id in player_ids:
            player = Player.query.get(player_id)
            if player:
                player.playlist_id = playlist_id
                cache.delete_memoized(get_player_playlist, player_id)
                updated_count += 1
        
        db.session.commit()
        
        log_action('info', f'Bulk assigned {updated_count} players to playlist {playlist_id}')
        return jsonify({'success': True, 'updated': updated_count})
        
    except Exception as e:
        db.session.rollback()
        log_action('error', f'Error bulk assigning players: {str(e)}')
        return jsonify({'success': False, 'error': str(e)}), 500


@players_bp.route('/<int:player_id>/playlist/reorder', methods=['POST'])
@login_required
def reorder_playlist(player_id: int):
    """Reorder items in player's playlist."""
    try:
        data = request.get_json()
        content_id = data.get('content_id')
        direction = data.get('direction')  # 'up' or 'down'
        
        if not content_id or not direction:
            return jsonify({'success': False, 'message': 'Missing parameters'}), 400
        
        # Get the content item
        content = Content.query.filter_by(id=content_id, player_id=player_id).first()
        if not content:
            return jsonify({'success': False, 'message': 'Content not found'}), 404
        
        # Get all content for this player, ordered by position
        all_content = Content.query.filter_by(player_id=player_id)\
            .order_by(Content.position, Content.uploaded_at).all()
        
        # Find current index
        current_index = None
        for idx, item in enumerate(all_content):
            if item.id == content_id:
                current_index = idx
                break
        
        if current_index is None:
            return jsonify({'success': False, 'message': 'Content not in playlist'}), 404
        
        # Swap positions
        if direction == 'up' and current_index > 0:
            # Swap with previous item
            all_content[current_index].position, all_content[current_index - 1].position = \
                all_content[current_index - 1].position, all_content[current_index].position
        elif direction == 'down' and current_index < len(all_content) - 1:
            # Swap with next item
            all_content[current_index].position, all_content[current_index + 1].position = \
                all_content[current_index + 1].position, all_content[current_index].position
        
        db.session.commit()
        cache.delete_memoized(get_player_playlist, player_id)
        
        log_action('info', f'Reordered playlist for player {player_id}')
        return jsonify({'success': True})
        
    except Exception as e:
        db.session.rollback()
        log_action('error', f'Error reordering playlist: {str(e)}')
        return jsonify({'success': False, 'message': str(e)}), 500


@players_bp.route('/<int:player_id>/playlist/remove', methods=['POST'])
@login_required
def remove_from_playlist(player_id: int):
    """Remove content from player's playlist."""
    try:
        data = request.get_json()
        content_id = data.get('content_id')
        
        if not content_id:
            return jsonify({'success': False, 'message': 'Missing content_id'}), 400
        
        # Get the content item
        content = Content.query.filter_by(id=content_id, player_id=player_id).first()
        if not content:
            return jsonify({'success': False, 'message': 'Content not found'}), 404
        
        filename = content.filename
        
        # Delete from database
        db.session.delete(content)
        
        # Increment playlist version
        player = Player.query.get(player_id)
        if player:
            player.playlist_version += 1
        
        db.session.commit()
        
        # Clear cache
        cache.delete_memoized(get_player_playlist, player_id)
        
        log_action('info', f'Removed "{filename}" from player {player_id} playlist (version {player.playlist_version})')
        return jsonify({'success': True, 'message': f'Removed "{filename}" from playlist'})
        
    except Exception as e:
        db.session.rollback()
        log_action('error', f'Error removing from playlist: {str(e)}')
        return jsonify({'success': False, 'message': str(e)}), 500