英文识别首购优惠

from flask import Flask, request, jsonify

app = Flask(__name__)

# 模拟用户数据库
users = {}

@app.route('/register', methods=['POST'])
def register():
    data = request.json
    user_id = data.get('user_id')
    users[user_id] = {'has_purchased': False}
    return jsonify({'message': 'User registered successfully'})

@app.route('/purchase', methods=['POST'])
def purchase():
    data = request.json
    user_id = data.get('user_id')
    
    if user_id not in users:
        return jsonify({'error': 'User not found'}), 404
    
    if users[user_id]['has_purchased']:
        return jsonify({'message': 'No discount available for repeat purchases'})
    
    # 应用首购优惠逻辑
    users[user_id]['has_purchased'] = True
    return jsonify({'message': 'Purchase successful with first-time discount'})

if __name__ == '__main__':
    app.run(debug=True)