from flask import Flask, jsonify, request
import requests
import uuid


app = Flask(__name__)

# Данные о книгах (в памяти)
books = [
    {
        "uuid": str(uuid.uuid4()),
        "author": "J.K.R.",
        "subject": "HP and PS",
        "year": 1997,
        "subscriptionUuid": "8f036445-a5bd-401c-926e-840f9de795cd"
    }
]

SUBSCRIPTIONS_URL = "http://subscriptions_service:5000/subscriptions/"


@app.route('/books/', methods=['GET'])
def get_books():
    return jsonify(books), 200


@app.route('/books/<uuid:book_id>', methods=['GET'])
def get_book(book_id):
    book = next((b for b in books if b['uuid'] == str(book_id)), None)
    if not book:
        return jsonify({"error": "Book not found"}), 404

    # Получение данных об абонементе
    response = requests.get(f"{SUBSCRIPTIONS_URL}{book['subscriptionUuid']}")
    if response.status_code == 200:
        book["subscriptionInfo"] = response.json()
    return jsonify(book), 200


@app.route('/books/', methods=['POST'])
def create_book():
    data = request.json
    new_book = {
        "uuid": str(uuid.uuid4()),
        "author": data["author"],
        "subject": data["subject"],
        "year": data["year"],
        "subscriptionUuid": data["subscriptionUuid"]
    }
    books.append(new_book)
    return jsonify(new_book), 201


@app.route('/books/<uuid:book_id>', methods=['PUT'])
def update_book(book_id):
    data = request.json
    book = next((b for b in books if b['uuid'] == str(book_id)), None)
    if not book:
        return jsonify({"error": "Book not found"}), 404

    # Обновляем данные книги
    book["author"] = data.get("author", book["author"])
    book["subject"] = data.get("subject", book["subject"])
    book["year"] = data.get("year", book["year"])
    book["subscriptionUuid"] = data.get("subscriptionUuid", book["subscriptionUuid"])

    return jsonify(book), 200


@app.route('/books/<uuid:book_id>', methods=['DELETE'])
def delete_book(book_id):
    global books
    book = next((b for b in books if b['uuid'] == str(book_id)), None)
    if not book:
        return jsonify({"error": "Book not found"}), 404

    # Удаляем книгу
    books = [b for b in books if b['uuid'] != str(book_id)]
    return jsonify({"message": "Book deleted successfully"}), 200


if __name__ == "__main__":
    app.run(host="0.0.0.0", port=5000)