app.py

from flask import Flask, jsonify, render_template, redirect, request, Response
import os
import json
import re
import requests
import urllib.parse
from datetime import datetime, timedelta
from threading import Thread
from hf_scrapper import get_system_proxies, ffmpeg_stream
from indexer import indexer
from dotenv import load_dotenv
import subprocess

load_dotenv()
INDEX_FILE = os.getenv("INDEX_FILE")
TOKEN = os.getenv("TOKEN")
REPO = os.getenv("REPO")
THETVDB_API_KEY = os.getenv("THETVDB_API_KEY")
THETVDB_API_URL = os.getenv("THETVDB_API_URL")
CACHE_DIR = os.getenv("CACHE_DIR")
TOKEN_EXPIRY = None
THETVDB_TOKEN = None
proxies = get_system_proxies()

if not os.path.exists(CACHE_DIR):
    os.makedirs(CACHE_DIR)

indexer()

# Check if INDEX_FILE exists
if not os.path.exists(INDEX_FILE):
    raise FileNotFoundError(f"{INDEX_FILE} not found. Please make sure the file exists.")

with open(INDEX_FILE, 'r') as f:
    file_structure = json.load(f)

def authenticate_thetvdb():
    global THETVDB_TOKEN, TOKEN_EXPIRY
    auth_url = f"{THETVDB_API_URL}/login"
    auth_data = {
        "apikey": THETVDB_API_KEY
    }
    try:
        response = requests.post(auth_url, json=auth_data, proxies=proxies)
        response.raise_for_status()
        response_data = response.json()
        THETVDB_TOKEN = response_data['data']['token']
        TOKEN_EXPIRY = datetime.now() + timedelta(days=30)  # token is valid for 1 month
    except requests.RequestException as e:
        print(f"Authentication failed: {e}")
        THETVDB_TOKEN = None
        TOKEN_EXPIRY = None

def get_thetvdb_token():
    global THETVDB_TOKEN, TOKEN_EXPIRY
    if not THETVDB_TOKEN or datetime.now() >= TOKEN_EXPIRY:
        authenticate_thetvdb()
    return THETVDB_TOKEN

def fetch_and_cache_json(original_title, title, media_type, year=None):
    if year:
        search_url = f"{THETVDB_API_URL}/search?query={urllib.parse.quote(title)}&type={media_type}&year={year}"
    else:
        search_url = f"{THETVDB_API_URL}/search?query={urllib.parse.quote(title)}&type={media_type}"
    
    token = get_thetvdb_token()
    if not token:
        print("Authentication failed")
        return
    
    headers = {
        "Authorization": f"Bearer {token}",
        "accept": "application/json",
    }
    
    try:
        response = requests.get(search_url, headers=headers, proxies=proxies)
        response.raise_for_status()
        data = response.json()
        
        if 'data' in data and data['data']:
            # Use original_title to save JSON response to cache
            json_cache_path = os.path.join(CACHE_DIR, f"{urllib.parse.quote(original_title)}.json")
            with open(json_cache_path, 'w') as f:
                json.dump(data, f)
                
    except requests.RequestException as e:
        print(f"Error fetching data: {e}")

def prefetch_metadata():
    for item in file_structure:
        if 'contents' in item:
            for sub_item in item['contents']:
                original_title = sub_item['path'].split('/')[-1]
                media_type = 'series' if item['path'].startswith('tv') else 'movie'
                title = original_title
                year = None
                
                # Check if the title contains a year in parentheses
                match = re.search(r'\((\d{4})\)', original_title)
                if match:
                    year_str = match.group(1)
                    if year_str.isdigit() and len(year_str) == 4:
                        title = original_title[:match.start()].strip()
                        year = int(year_str)
                else:
                    # Check if the title contains a year at the end without parentheses
                    parts = original_title.rsplit(' ', 1)
                    if len(parts) > 1 and parts[-1].isdigit() and len(parts[-1]) == 4:
                        title = parts[0].strip()
                        year = int(parts[-1])
                
                fetch_and_cache_json(original_title, title, media_type, year)

def get_film_file_path(title):
    # URL-decode the title
    decoded_title = urllib.parse.unquote(title)
    # Normalize the title for comparison
    normalized_title = decoded_title.split(' (')[0]
    normalized_title = normalized_title.strip()
    
    for item in file_structure:
        if item['path'].startswith('films'):
            for sub_item in item['contents']:
                sub_item_title = sub_item['path'].split('/')[-1]
                # Normalize sub_item title
                normalized_sub_item_title = sub_item_title.split(' (')[0]
                normalized_sub_item_title = normalized_sub_item_title.strip()
                
                if normalized_title == normalized_sub_item_title:
                    for file in sub_item['contents']:
                        if file['type'] == 'file':
                            return file['path']
    return None

def get_tv_show_seasons(title):
    seasons = []
    for item in file_structure:
        if item['path'].startswith('tv'):
            for sub_item in item['contents']:
                if sub_item['type'] == 'directory' and title in sub_item['path']:
                    for season in sub_item['contents']:
                        if season['type'] == 'directory':
                            episodes = []
                            for episode in season['contents']:
                                if episode['type'] == 'file':
                                    episodes.append({
                                        "title": episode['path'].split('/')[-1],
                                        "path": episode['path']
                                    })
                            seasons.append({
                                "season": season['path'].split('/')[-1],
                                "episodes": episodes
                            })
                    return seasons
    return []

# Run prefetch_metadata in a background thread
def start_prefetching():
    prefetch_metadata()

def generate(file_url):
    token = TOKEN = os.getenv("TOKEN")
    output_stream = ffmpeg_stream(file_url, token)

# Start prefetching before running the Flask app
thread = Thread(target=start_prefetching)
thread.daemon = True
thread.start()

app = Flask(__name__)

@app.route('/')
def home():
    return render_template('index.html')

@app.route('/player')
def player():
    return render_template('player.html')

@app.route('/films')
def list_films():
    films = [item for item in file_structure if item['path'].startswith('films')]
    return jsonify([sub_item for film in films for sub_item in film['contents']])

@app.route('/tv')
def list_tv():
    tv_shows = [item for item in file_structure if item['path'].startswith('tv')]
    return jsonify([sub_item for show in tv_shows for sub_item in show['contents']])

@app.route('/film/<path:title>')
def film_page(title):
    title = urllib.parse.unquote(title)  # Decode the URL parameter
    film_file_path = get_film_file_path(title)
    if not film_file_path:
        return jsonify({'error': 'Film not found'}), 404
    
    # Fetch cached metadata
    json_cache_path = os.path.join(CACHE_DIR, f"{urllib.parse.quote(title)}.json")
    if os.path.exists(json_cache_path):
        with open(json_cache_path, 'r') as f:
            metadata = json.load(f)
    else:
        return jsonify({'error': 'Metadata not found'}), 404
    
    return jsonify({
        'metadata': metadata,
        'file_path': film_file_path
    })

@app.route('/tv/<path:show_title>')
def tv_page(show_title):
    show_title = urllib.parse.unquote(show_title)  # Decode the URL parameter
    seasons = get_tv_show_seasons(show_title)
    if not seasons:
        return jsonify({'error': 'TV show not found'}), 404
    
    # Fetch cached metadata
    json_cache_path = os.path.join(CACHE_DIR, f"{urllib.parse.quote(show_title)}.json")
    if os.path.exists(json_cache_path):
        with open(json_cache_path, 'r') as f:
            metadata = json.load(f)
    else:
        return jsonify({'error': 'Metadata not found'}), 404
    
    return jsonify({
        'metadata': metadata,
        'seasons': seasons
    })

@app.route('/get_metadata')
def get_metadata():
    title = request.args.get('title')
    if not title:
        return jsonify({'error': 'No title provided'}), 400
    
    json_cache_path = os.path.join(CACHE_DIR, f"{urllib.parse.quote(title)}.json")
    
    if os.path.exists(json_cache_path):
        with open(json_cache_path, 'r') as f:
            data = json.load(f)
        return jsonify(data)
    
    # If metadata is not found in cache, return an error
    return jsonify({'error': 'Metadata not found'}), 404

@app.route('/stream')
def stream_video():
    # this route currently only stream the file from huggingface using ffmpy. can't play them in the web yet. need to implement later.
    file_path = request.args.get('path')
    if not file_path:
        return "File path not provided", 400

    file_url = f"https://huggingface.co/{REPO}/resolve/main/{file_path}"

    return Response(generate(file_url), content_type='video/mp4')

if __name__ == '__main__':
    app.run(debug=True, host="0.0.0.0", port=7860)