"""
产品审核 API
"""
import uuid
import json
from datetime import datetime
from flask import Blueprint, request, jsonify, session
from config import DATA_DIR, MODELS_FILE, GPUS_FILE, CPUS_FILE
from utils import load_data, save_data

reviews_bp = Blueprint('api_reviews', __name__)

PENDING_FILE = DATA_DIR / 'pending_reviews.json'


@reviews_bp.route('/api/reviews')
def api_reviews():
    """获取待审核列表"""
    reviews = load_data(PENDING_FILE)
    
    # 筛选参数
    status = request.args.get('status', 'pending')  # pending, approved, rejected, all
    limit = int(request.args.get('limit', 100))
    
    if status != 'all':
        reviews = [r for r in reviews if r.get('status', 'pending') == status]
    
    # 按时间倒序
    reviews = sorted(reviews, key=lambda x: x.get('created_at', ''), reverse=True)
    
    return jsonify(reviews[:limit])


@reviews_bp.route('/api/reviews/count')
def api_reviews_count():
    """获取待审核数量"""
    reviews = load_data(PENDING_FILE)
    pending_count = len([r for r in reviews if r.get('status', 'pending') == 'pending'])
    return jsonify({'count': pending_count})


@reviews_bp.route('/api/reviews/<review_id>')
def api_review_detail(review_id):
    """获取审核详情"""
    reviews = load_data(PENDING_FILE)
    review = next((r for r in reviews if r['id'] == review_id), None)
    if not review:
        return jsonify({'error': 'Review not found'}), 404
    return jsonify(review)


@reviews_bp.route('/api/reviews/<review_id>/approve', methods=['POST'])
def api_approve_review(review_id):
    """通过审核"""
    reviews = load_data(PENDING_FILE)
    review = next((r for r in reviews if r['id'] == review_id), None)
    if not review:
        return jsonify({'error': 'Review not found'}), 404
    
    if review.get('status') != 'pending':
        return jsonify({'error': '该申请已处理'}), 400
    
    # 获取数据文件
    category_id = review.get('category_id')
    data_file = get_data_file(category_id)
    if not data_file:
        return jsonify({'error': 'Unknown category'}), 400
    
    # 添加数据到正式文件
    items = load_data(data_file)
    item_data = review.get('data', {})
    
    # 确保有ID和时间戳
    if 'id' not in item_data or not item_data['id']:
        item_data['id'] = uuid.uuid4().hex[:12]
    item_data['created_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    item_data['visible'] = True
    item_data['approved'] = True
    item_data['approved_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    
    items.append(item_data)
    save_data(data_file, items)
    
    # 更新审核状态
    review['status'] = 'approved'
    review['approved_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    review['approved_by'] = session.get('username', 'admin')
    save_data(PENDING_FILE, reviews)
    
    return jsonify({'success': True, 'item': item_data})


@reviews_bp.route('/api/reviews/<review_id>/reject', methods=['POST'])
def api_reject_review(review_id):
    """拒绝审核"""
    reviews = load_data(PENDING_FILE)
    review = next((r for r in reviews if r['id'] == review_id), None)
    if not review:
        return jsonify({'error': 'Review not found'}), 404
    
    if review.get('status') != 'pending':
        return jsonify({'error': '该申请已处理'}), 400
    
    data = request.get_json() or {}
    reason = data.get('reason', '')
    
    # 更新审核状态
    review['status'] = 'rejected'
    review['rejected_at'] = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    review['rejected_by'] = session.get('username', 'admin')
    review['reject_reason'] = reason
    save_data(PENDING_FILE, reviews)
    
    return jsonify({'success': True})


def get_data_file(category_id):
    """获取类别对应的数据文件"""
    builtin_map = {
        'ai-models': MODELS_FILE,
        'gpus': GPUS_FILE,
        'cpus': CPUS_FILE
    }
    
    if category_id in builtin_map:
        return builtin_map[category_id]
    
    # 动态分类
    return DATA_DIR / f'items_{category_id}.json'


# ─── 内部函数：提交审核 ───────────────────────────────────────────────────────

def submit_for_review(category_id, data, source='web', submitter=None):
    """
    提交产品到审核队列
    
    参数:
        category_id: 分类ID
        data: 产品数据(dict)
        source: 来源 web/api
        submitter: 提交者
    """
    reviews = load_data(PENDING_FILE)
    
    review = {
        'id': uuid.uuid4().hex[:12],
        'category_id': category_id,
        'data': data,
        'source': source,
        'submitter': submitter or 'anonymous',
        'status': 'pending',  # pending, approved, rejected
        'created_at': datetime.now().strftime('%Y-%m-%d %H:%M:%S')
    }
    
    reviews.append(review)
    save_data(PENDING_FILE, reviews)
    
    return review