from flask import Blueprint, jsonify, request, current_app
from utils.json_crud import load_json, save_json
from utils.data_loader import load_data
from models.contact_model import ContactModel
import os

DATA_DIR = os.path.join(os.path.dirname(__file__), '../data')
CONTACTS_FILE = os.path.join(DATA_DIR, 'contact.json')

contact_bp = Blueprint('contact', __name__, url_prefix='/api/contact')

@contact_bp.route('/', methods=['GET'])
def get_contact():
    contact = load_data('contact.json')
    return jsonify(contact)

@contact_bp.route('/', methods=['POST'])
def create_or_replace_contact():
    key = request.headers.get('x-api-key')
    if key != current_app.config['API_KEY']:
        return jsonify({"error": "Unauthorized"}), 401

    data = request.json or {}
    model = ContactModel(data)
    if not model.is_valid():
        return jsonify({"error": "Invalid contact data"}), 400
    new_entry = model.to_dict()
    save_json(CONTACTS_FILE, new_entry)
    return jsonify(new_entry), 201

@contact_bp.route('/', methods=['PUT', 'PATCH'])
def update_contact():
    key = request.headers.get('x-api-key')
    if key != current_app.config['API_KEY']:
        return jsonify({"error": "Unauthorized"}), 401

    current = load_json(CONTACTS_FILE) or {}
    payload = request.json or {}
    updated = {**current, **payload}

    model = ContactModel(updated)
    if not model.is_valid():
        return jsonify({"error": "Invalid contact data"}), 400

    save_json(CONTACTS_FILE, model.to_dict())
    return jsonify(model.to_dict()), 200

@contact_bp.route('/', methods=['DELETE'])
def delete_contact():
    key = request.headers.get('x-api-key')
    if key != current_app.config['API_KEY']:
        return jsonify({"error": "Unauthorized"}), 401

    # Clear contact info
    save_json(CONTACTS_FILE, {})
    return jsonify({"status": "success"}), 200