import os
from flask import Flask, render_template, request, redirect, url_for, session, flash, jsonify, send_from_directory
from flask_migrate import Migrate
import subprocess
from werkzeug.utils import secure_filename
from functools import wraps
from extensions import db, bcrypt, login_manager
from sqlalchemy import text

# First import models
from models import User, Player, Content, Group, ServerLog

# Then import utilities that use the models
from flask_login import login_user, logout_user, login_required, current_user
from utils.logger import get_recent_logs, log_action, log_upload, log_process, log_user_deleted, log_user_created
from utils.group_player_management import (
    create_group as create_group_util,
    edit_group as edit_group_util,
    delete_group as delete_group_util,
    add_player as add_player_util,
    edit_player as edit_player_util,
    delete_player as delete_player_util,
    get_group_content,
    get_player_content,
    update_player_content_order,
    update_group_content_order,
    edit_group_media,
    delete_group_media
)

# Finally, import modules that depend on both models and logger
from utils.uploads import (
    add_image_to_playlist, 
    convert_video_and_update_playlist,
    process_pdf, 
    process_pptx,
    process_uploaded_files
)

# Define global variables for server version and build date
SERVER_VERSION = "1.0.0"
BUILD_DATE = "2025-06-25"

app = Flask(__name__, instance_relative_config=True)

# Set the secret key from environment variable or use a default value
app.config['SECRET_KEY'] = os.getenv('SECRET_KEY', 'Ana_Are_Multe_Mere-Si_Nu_Are_Pere')

# Configure the database location to be in the instance folder
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(app.instance_path, 'dashboard.db')
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False

# Set maximum content length to 1GB
app.config['MAX_CONTENT_LENGTH'] = 2048 * 2048 * 2048  # 2GB, adjust as needed

# Ensure the instance folder exists
os.makedirs(app.instance_path, exist_ok=True)

db.init_app(app)
bcrypt.init_app(app)
login_manager.init_app(app)

UPLOAD_FOLDER = 'static/uploads'
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
UPLOAD_FOLDERLOGO = 'static/resurse'
app.config['UPLOAD_FOLDERLOGO'] = UPLOAD_FOLDERLOGO

# Ensure the upload folder exists
if not os.path.exists(UPLOAD_FOLDER):
    os.makedirs(UPLOAD_FOLDER)
    os.makedirs(UPLOAD_FOLDERLOGO)

login_manager.login_view = 'login'

migrate = Migrate(app, db)

@login_manager.user_loader
def load_user(user_id):
    return db.session.get(User, int(user_id))

def admin_required(f):
    @wraps(f)
    def decorated_function(*args, **kwargs):
        if current_user.role != 'admin':
            return redirect(url_for('dashboard'))
        return f(*args, **kwargs)
    return decorated_function

@app.route('/')
@login_required
def dashboard():
    players = Player.query.all()
    groups = Group.query.all()
    logo_exists = os.path.exists(os.path.join(app.config['UPLOAD_FOLDERLOGO'], 'logo.png'))
    server_logs = get_recent_logs(20)  # Get the 20 most recent logs
    return render_template('dashboard.html', players=players, groups=groups, logo_exists=logo_exists, server_logs=server_logs)

@app.route('/register', methods=['GET', 'POST'])
def register():
    if request.method == 'POST':
        username = request.form['username']
        password = request.form['password']
        hashed_password = bcrypt.generate_password_hash(password).decode('utf-8')
        new_user = User(username=username, password=hashed_password, role='user')
        db.session.add(new_user)
        db.session.commit()
        return redirect(url_for('login'))
    return render_template('register.html')

@app.route('/login', methods=['GET', 'POST'])
def login():
    if request.method == 'POST':
        username = request.form['username']
        password = request.form['password']
        user = User.query.filter_by(username=username).first()
        if user and bcrypt.check_password_hash(user.password, password):
            login_user(user)
            return redirect(url_for('dashboard'))
        else:
            flash('Login Unsuccessful. Please check username and password', 'danger')
    
    login_picture_exists = os.path.exists(os.path.join(app.config['UPLOAD_FOLDERLOGO'], 'login_picture.png'))
    return render_template('login.html', login_picture_exists=login_picture_exists)

@app.route('/logout')
@login_required
def logout():
    logout_user()
    return redirect(url_for('login'))

@app.route('/upload_content', methods=['GET', 'POST'])
@login_required
@admin_required
def upload_content():
    if request.method == 'POST':
        target_type = request.form.get('target_type')
        target_id = request.form.get('target_id')
        files = request.files.getlist('files')
        duration = int(request.form['duration'])
        return_url = request.form.get('return_url')
        media_type = request.form['media_type']

        print(f"Target Type: {target_type}, Target ID: {target_id}, Media Type: {media_type}")

        if not target_type or not target_id:
            flash('Please select a target type and target ID.', 'danger')
            return redirect(url_for('upload_content'))

        # Process uploaded files and get results
        results = process_uploaded_files(app, files, media_type, duration, target_type, target_id)

        return redirect(return_url)

    # Handle GET request
    target_type = request.args.get('target_type')
    target_id = request.args.get('target_id')
    return_url = request.args.get('return_url', url_for('dashboard'))

    players = [{'id': player.id, 'username': player.username} for player in Player.query.all()]
    groups = [{'id': group.id, 'name': group.name} for group in Group.query.all()]

    return render_template('upload_content.html', target_type=target_type, target_id=target_id, 
                          players=players, groups=groups, return_url=return_url)

@app.route('/admin')
@login_required
@admin_required
def admin():
    logo_exists = os.path.exists(os.path.join(app.config['UPLOAD_FOLDERLOGO'], 'logo.png'))
    login_picture_exists = os.path.exists(os.path.join(app.config['UPLOAD_FOLDERLOGO'], 'login_picture.png'))
    users = User.query.all()
    return render_template(
        'admin.html',
        users=users,
        logo_exists=logo_exists,
        login_picture_exists=login_picture_exists,
        server_version=SERVER_VERSION,
        build_date=BUILD_DATE
    )

@app.route('/admin/change_role/<int:user_id>', methods=['POST'])
@login_required
@admin_required
def change_role(user_id):
    user = User.query.get_or_404(user_id)
    new_role = request.form['role']
    user.role = new_role
    db.session.commit()
    return redirect(url_for('admin'))

@app.route('/admin/delete_user/<int:user_id>', methods=['POST'])
@login_required
@admin_required
def delete_user(user_id):
    user = User.query.get_or_404(user_id)
    username = user.username  # Store username before deletion for logging
    db.session.delete(user)
    db.session.commit()
    # Add log entry for user deletion
    log_user_deleted(username)
    return redirect(url_for('admin'))

@app.route('/admin/create_user', methods=['POST'])
@login_required
@admin_required
def create_user():
    username = request.form['username']
    password = request.form['password']
    role = request.form['role']
    hashed_password = bcrypt.generate_password_hash(password).decode('utf-8')
    new_user = User(username=username, password=hashed_password, role=role)
    db.session.add(new_user)
    db.session.commit()
    # Add log entry for user creation
    log_user_created(username, role)
    return redirect(url_for('admin'))

@app.route('/player/<int:player_id>')
@login_required
def player_page(player_id):
    player = db.session.get(Player, player_id)
    content = get_player_content(player_id)
    return render_template('player_page.html', player=player, content=content)

@app.route('/player/<int:player_id>/upload', methods=['POST'])
@login_required
def upload_content_to_player(player_id):
    player = Player.query.get_or_404(player_id)
    files = request.files.getlist('files')
    duration = int(request.form['duration'])

    for file in files:
        filename = secure_filename(file.filename)
        file_path = os.path.join(app.config['UPLOAD_FOLDER'], filename)
        file.save(file_path)
        new_content = Content(file_name=filename, duration=duration, player_id=player_id)
        db.session.add(new_content)
    
    db.session.commit()
    return redirect(url_for('player_page', player_id=player_id))

@app.route('/content/<int:content_id>/edit', methods=['POST'])
@login_required
def edit_content(content_id):
    content = Content.query.get_or_404(content_id)
    new_duration = int(request.form['duration'])
    content.duration = new_duration
    db.session.commit()
    return redirect(url_for('player_page', player_id=content.player_id))

@app.route('/content/<int:content_id>/delete', methods=['POST'])
@login_required
def delete_content(content_id):
    content = Content.query.get_or_404(content_id)
    player_id = content.player_id
    db.session.delete(content)
    db.session.commit()
    return redirect(url_for('player_page', player_id=player_id))

@app.route('/player/<int:player_id>/fullscreen', methods=['GET', 'POST'])
def player_fullscreen(player_id):
    player = Player.query.get_or_404(player_id)
    
    if request.method == 'POST':
        hostname = request.form['hostname']
        password = request.form['password']
        quickconnect_password = request.form.get('quickconnect_password')
        
        if quickconnect_password:
            if player.hostname == hostname and bcrypt.check_password_hash(player.quickconnect_password, quickconnect_password):
                authenticated = True
            else:
                authenticated = False
        else:
            if player.hostname == hostname and bcrypt.check_password_hash(player.password, password):
                authenticated = True
            else:
                authenticated = False
    else:
        authenticated = False

    if authenticated or current_user.is_authenticated:
        content = Content.query.filter_by(player_id=player_id).all()
        return render_template('player_fullscreen.html', player=player, content=content)
    else:
        return render_template('player_auth.html', player_id=player_id)

@app.route('/player/<int:player_id>/delete', methods=['POST'])
@login_required
@admin_required
def delete_player(player_id):
    delete_player_util(player_id)
    return redirect(url_for('dashboard'))

# Update the add_player function
@app.route('/player/add', methods=['GET', 'POST'])
@login_required
@admin_required
def add_player():
    if request.method == 'POST':
        username = request.form['username']
        hostname = request.form['hostname']
        password = bcrypt.generate_password_hash(request.form['password']).decode('utf-8')
        quickconnect_password = bcrypt.generate_password_hash(request.form['quickconnect_password']).decode('utf-8')
        add_player_util(username, hostname, password, quickconnect_password)
        flash(f'Player "{username}" added successfully.', 'success')
        return redirect(url_for('dashboard'))
    return render_template('add_player.html')

@app.route('/player/<int:player_id>/edit', methods=['GET', 'POST'])
@login_required
@admin_required
def edit_player(player_id):
    player = Player.query.get_or_404(player_id)
    if request.method == 'POST':
        username = request.form['username']
        hostname = request.form['hostname']
        password = request.form['password'] if request.form['password'] else None
        quickconnect_password = request.form['quickconnect_password'] if request.form['quickconnect_password'] else None
        edit_player_util(player_id, username, hostname, password, quickconnect_password)
        flash(f'Player "{username}" updated successfully.', 'success')
        return redirect(url_for('player_page', player_id=player.id))

    return_url = request.args.get('return_url', url_for('player_page', player_id=player.id))
    return render_template('edit_player.html', player=player, return_url=return_url)

@app.route('/change_theme', methods=['POST'])
@login_required
@admin_required
def change_theme():
    theme = request.form['theme']
    current_user.theme = theme
    db.session.commit()
    return redirect(url_for('admin'))

@app.route('/upload_logo', methods=['POST'])
@login_required
@admin_required
def upload_logo():
    if 'logo' not in request.files:
        return redirect(url_for('admin'))
    
    file = request.files['logo']
    if file.filename == '':
        return redirect(url_for('admin'))
    
    if file:
        filename = secure_filename(file.filename)
        file_path = os.path.join(app.config['UPLOAD_FOLDERLOGO'], 'logo.png')
        file.save(file_path)
        return redirect(url_for('admin'))

@app.route('/upload_personalization_pictures', methods=['POST'])
@login_required
@admin_required
def upload_personalization_pictures():
    logo_file = request.files.get('logo')
    login_picture_file = request.files.get('login_picture')
    
    if logo_file and logo_file.filename != '':
        logo_filename = secure_filename(logo_file.filename)
        logo_file_path = os.path.join(app.config['UPLOAD_FOLDERLOGO'], 'logo.png')
        logo_file.save(logo_file_path)
    
    if login_picture_file and login_picture_file.filename != '':
        login_picture_filename = secure_filename(login_picture_file.filename)
        login_picture_file_path = os.path.join(app.config['UPLOAD_FOLDERLOGO'], 'login_picture.png')
        login_picture_file.save(login_picture_file_path)
    
    return redirect(url_for('admin'))

@app.route('/clean_unused_files', methods=['POST'])
@login_required
@admin_required
def clean_unused_files():
    # Get all file names from the database
    content_files = {content.file_name for content in Content.query.all()}
    logo_file = 'resurse/logo.png'
    login_picture_file = 'resurse/login_picture.png'

    # Debugging: Print the content files from the database
    print("Content files from database:", content_files)

    # Get all files in the upload folder
    all_files = set(os.listdir(app.config['UPLOAD_FOLDER']))

    # Determine unused files
    used_files = content_files | {logo_file, login_picture_file}
    unused_files = all_files - used_files

    # Debugging: Print the lists of files
    print("All files:", all_files)
    print("Used files:", used_files)
    print("Unused files:", unused_files)

    # Delete unused files
    for file_name in unused_files:
        file_path = os.path.join(app.config['UPLOAD_FOLDER'], file_name)
        if os.path.isfile(file_path):
            print(f"Deleting file: {file_path}")  # Debugging: Print the file being deleted
            os.remove(file_path)

    flash('Unused files have been cleaned.', 'success')
    return redirect(url_for('admin'))


@app.route('/api/playlists', methods=['GET'])
def get_playlists():
    hostname = request.args.get('hostname')
    quickconnect_code = request.args.get('quickconnect_code')

    # Validate the parameters
    if not hostname or not quickconnect_code:
        return jsonify({'error': 'Hostname and quick connect code are required'}), 400

    # Find the player by hostname and verify the quickconnect code
    player = Player.query.filter_by(hostname=hostname).first()
    if not player or not bcrypt.check_password_hash(player.quickconnect_password, quickconnect_code):
        return jsonify({'error': 'Invalid hostname or quick connect code'}), 404

    # Check if player is locked to a group
    if player.locked_to_group_id:
        # Get content for all players in the group to ensure shared content
        group_players = player.locked_to_group.players
        player_ids = [p.id for p in group_players]
        
        # Use the first occurrence of each file for the playlist
        content_query = (
            db.session.query(
                Content.file_name, 
                db.func.min(Content.id).label('id'),
                db.func.min(Content.duration).label('duration')
            )
            .filter(Content.player_id.in_(player_ids))
            .group_by(Content.file_name)
        )
        
        content = db.session.query(Content).filter(
            Content.id.in_([c.id for c in content_query])
        ).all()
    else:
        # Get player's individual content
        content = Content.query.filter_by(player_id=player.id).all()
    
    playlist = [
        {
            'file_name': media.file_name,
            'url': f"http://{request.host}/media/{media.file_name}",
            'duration': media.duration
        }
        for media in content
    ]

    # Return the playlist, version, and hashed quickconnect code
    return jsonify({
        'playlist': playlist,
        'playlist_version': player.playlist_version,
        'hashed_quickconnect': player.quickconnect_password
    })

@app.route('/media/<path:filename>')
def media(filename):
    return send_from_directory(app.config['UPLOAD_FOLDER'], filename)

@app.context_processor
def inject_theme():
    if current_user.is_authenticated:
        theme = current_user.theme
    else:
        theme = 'light'
    return dict(theme=theme)

@app.route('/group/create', methods=['GET', 'POST'])
@login_required
@admin_required
def create_group():
    if request.method == 'POST':
        group_name = request.form['name']
        player_ids = request.form.getlist('players')
        create_group_util(group_name, player_ids)
        flash(f'Group "{group_name}" created successfully.', 'success')
        return redirect(url_for('dashboard'))
    players = Player.query.all()
    return render_template('create_group.html', players=players)

@app.route('/group/<int:group_id>/manage')
@login_required
@admin_required
def manage_group(group_id):
    group = Group.query.get_or_404(group_id)
    content = get_group_content(group_id)
    # Debug content ordering
    print("Group content positions before sorting:", [(c.id, c.file_name, c.position) for c in content])
    content = sorted(content, key=lambda c: c.position)
    print("Group content positions after sorting:", [(c.id, c.file_name, c.position) for c in content])
    return render_template('manage_group.html', group=group, content=content)

@app.route('/group/<int:group_id>/edit', methods=['GET', 'POST'])
@login_required
@admin_required
def edit_group(group_id):
    group = Group.query.get_or_404(group_id)
    if request.method == 'POST':
        name = request.form['name']
        player_ids = request.form.getlist('players')
        edit_group_util(group_id, name, player_ids)
        flash(f'Group "{name}" updated successfully.', 'success')
        return redirect(url_for('dashboard'))
    players = Player.query.all()
    return render_template('edit_group.html', group=group, players=players)

@app.route('/group/<int:group_id>/delete', methods=['POST'])
@login_required
@admin_required
def delete_group(group_id):
    group = Group.query.get_or_404(group_id)
    group_name = group.name
    delete_group_util(group_id)
    flash(f'Group "{group_name}" deleted successfully.', 'success')
    return redirect(url_for('dashboard'))

@app.route('/group/<int:group_id>/fullscreen', methods=['GET'])
@login_required
def group_fullscreen(group_id):
    group = Group.query.get_or_404(group_id)
    content = Content.query.filter(Content.player_id.in_([player.id for player in group.players])).order_by(Content.position).all()
    return render_template('group_fullscreen.html', group=group, content=content)

@app.route('/group/<int:group_id>/media/<int:content_id>/edit', methods=['POST'])
@login_required
@admin_required
def edit_group_media_route(group_id, content_id):
    new_duration = int(request.form['duration'])
    success = edit_group_media(group_id, content_id, new_duration)
    
    if success:
        flash('Media duration updated successfully.', 'success')
    else:
        flash('Error updating media duration.', 'danger')
    
    return redirect(url_for('manage_group', group_id=group_id))

@app.route('/group/<int:group_id>/media/<int:content_id>/delete', methods=['POST'])
@login_required
@admin_required
def delete_group_media_route(group_id, content_id):
    success = delete_group_media(group_id, content_id)
    
    if success:
        flash('Media deleted successfully.', 'success')
    else:
        flash('Error deleting media.', 'danger')
    
    return redirect(url_for('manage_group', group_id=group_id))

@app.route('/api/playlist_version', methods=['GET'])
def get_playlist_version():
    hostname = request.args.get('hostname')
    quickconnect_code = request.args.get('quickconnect_code')

    # Validate the parameters
    if not hostname or not quickconnect_code:
        return jsonify({'error': 'Hostname and quick connect code are required'}), 400

    # Find the player by hostname and verify the quickconnect code
    player = Player.query.filter_by(hostname=hostname).first()
    if not player or not bcrypt.check_password_hash(player.quickconnect_password, quickconnect_code):
        return jsonify({'error': 'Invalid hostname or quick connect code'}), 404

    # Return the playlist version and hashed quickconnect code
    return jsonify({
        'playlist_version': player.playlist_version,
        'hashed_quickconnect': player.quickconnect_password
    })

@app.route('/player/<int:player_id>/update_order', methods=['POST'])
@login_required
def update_content_order(player_id):
    if not request.is_json:
        return jsonify({'success': False, 'error': 'Invalid request format'}), 400
        
    player = Player.query.get_or_404(player_id)
    if player.groups and current_user.role != 'admin':
        return jsonify({'success': False, 'error': 'Cannot reorder playlist for players in groups'}), 403
        
    items = request.json.get('items', [])
    
    success, error, new_version = update_player_content_order(player_id, items)
    
    if success:
        return jsonify({'success': True, 'new_version': new_version})
    else:
        return jsonify({'success': False, 'error': error}), 500

@app.route('/group/<int:group_id>/update_order', methods=['POST'])
@login_required
@admin_required
def update_group_content_order_route(group_id):
    if not request.is_json:
        return jsonify({'success': False, 'error': 'Invalid request format'}), 400
        
    items = request.json.get('items', [])
    success, error = update_group_content_order(group_id, items)
    
    if success:
        return jsonify({'success': True})
    else:
        return jsonify({'success': False, 'error': error}), 500

@app.route('/debug/content_positions/<int:group_id>')
@login_required
@admin_required
def debug_content_positions(group_id):
    group = Group.query.get_or_404(group_id)
    player_ids = [p.id for p in group.players]
    
    # Query directly with SQL to see positions
    sql = text("SELECT id, file_name, position, player_id FROM content WHERE player_id IN :player_ids ORDER BY position")
    result = db.session.execute(sql, {"player_ids": tuple(player_ids)})
    
    content_data = [{"id": row.id, "file_name": row.file_name, "position": row.position, "player_id": row.player_id} for row in result]
    
    return jsonify(content_data)

# Add this at the end of app.py
if __name__ == '__main__':
    app.run(debug=True, host='0.0.0.0', port=5000)