"""
动态分类数据 API
"""
import uuid
from datetime import datetime
from flask import Blueprint, request, jsonify
from config import DATA_DIR
from utils import load_data, save_data, parse_date_to_timestamp

items_bp = Blueprint('api_items', __name__)


@items_bp.route('/api/items/<category_id>')
def api_items(category_id):
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    hide_hidden = request.args.get('all', '0') == '0'
    if hide_hidden:
        items = [i for i in items if i.get('visible', True)]
    sort_by = request.args.get('sort', 'default')
    reverse = request.args.get('order', 'desc') == 'desc'
    def safe_key(x, key):
        val = x.get(key)
        if val is None:
            return 0 if key in ['price', 'views', 'year'] else ''
        return val
    if sort_by == 'default':
        items = sorted(items, key=lambda x: (
            not x.get('is_pinned', False),
            -(parse_date_to_timestamp(x.get('publish_date', '')) or
              parse_date_to_timestamp(x.get('created_at', '')) or 0)
        ))
    elif sort_by in ['name', 'price', 'year', 'created_at', 'publish_date', 'views', 'updated_at']:
        items = sorted(items, key=lambda x: safe_key(x, sort_by), reverse=reverse)
    return jsonify(items)


@items_bp.route('/api/items/<category_id>/<item_id>')
def api_item_detail(category_id, item_id):
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    item = next((i for i in items if i['id'] == item_id), None)
    if not item:
        return jsonify({'error': 'Item not found'}), 404
    return jsonify(item)


@items_bp.route('/api/items/<category_id>', methods=['POST'])
def api_create_item(category_id):
    data = request.get_json()
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    data['id'] = uuid.uuid4().hex[:12]
    data['category_id'] = category_id
    data['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    data['visible'] = data.get('visible', True)
    data['publish_date'] = data.get('publish_date', '')
    data['views'] = data.get('views', 0)
    data['is_pinned'] = data.get('is_pinned', False)
    items.append(data)
    save_data(items_file, items)
    return jsonify(data)


@items_bp.route('/api/items/<category_id>/<item_id>', methods=['PUT'])
def api_update_item(category_id, item_id):
    data = request.get_json()
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    item = next((i for i in items if i['id'] == item_id), None)
    if not item:
        return jsonify({'error': 'Item not found'}), 404
    item.update(data)
    item['updated_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    save_data(items_file, items)
    return jsonify(item)


@items_bp.route('/api/items/<category_id>/<item_id>', methods=['DELETE'])
def api_delete_item(category_id, item_id):
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    items = [i for i in items if i['id'] != item_id]
    save_data(items_file, items)
    return jsonify({'success': True})


@items_bp.route('/api/items/<category_id>/<item_id>/visible', methods=['POST'])
def api_toggle_item_visible(category_id, item_id):
    items_file = DATA_DIR / f'items_{category_id}.json'
    items = load_data(items_file)
    item = next((i for i in items if i['id'] == item_id), None)
    if not item:
        return jsonify({'error': 'Item not found'}), 404
    item['visible'] = not item.get('visible', True)
    save_data(items_file, items)
    return jsonify({'success': True, 'visible': item['visible']})