from flask import Flask, jsonify, request
from flask_cors import CORS
import random
from datetime import datetime, timedelta

app = Flask(__name__)
CORS(app)

# Mock data
ACTIVITY_INFO = {
    "bannerUrl": "https://via.placeholder.com/750x400/ff5722/ffffff?text=新用户首单优惠",
    "title": "新用户首单立减",
    "endTime": (datetime.now() + timedelta(days=7)).isoformat()
}

COUPONS = [
    {
        "id": "coupon_001",
        "value": 10,
        "expiryDate": "2024-12-31",
        "condition": "满50元可用"
    },
    {
        "id": "coupon_002", 
        "value": 20,
        "expiryDate": "2024-12-31",
        "condition": "满100元可用"
    },
    {
        "id": "coupon_003",
        "value": 50,
        "expiryDate": "2024-12-31", 
        "condition": "满200元可用"
    }
]

@app.route('/api/activity/info', methods=['GET'])
def get_activity_info():
    activity_id = request.args.get('activityId', '')
    return jsonify(ACTIVITY_INFO)

@app.route('/api/coupon/list', methods=['GET'])
def get_coupon_list():
    return jsonify(COUPONS)

@app.route('/api/coupon/receive', methods=['POST'])
def receive_coupon():
    data = request.get_json()
    coupon_id = data.get('couponId', '')
    
    # Simulate success/failure randomly
    success = random.random() > 0.2  # 80% success rate
    
    if success:
        return jsonify({
            "success": True,
            "message": f"优惠券 {coupon_id} 领取成功"
        })
    else:
        return jsonify({
            "success": False,
            "message": "优惠券库存不足"
        })

@app.route('/api/track/event', methods=['POST'])
def track_event():
    data = request.get_json()
    event_name = data.get('eventName', '')
    payload = data.get('payload', {})
    
    # Log the event (in real app, this would go to analytics service)
    print(f"Event tracked: {event_name}, Payload: {payload}")
    
    return jsonify({
        "success": True
    })

@app.route('/health', methods=['GET'])
def health_check():
    return jsonify({"status": "ok"})

if __name__ == '__main__':
    print("Starting server on http://localhost:5000")
    print("Available endpoints:")
    print("  GET  /api/activity/info")
    print("  GET  /api/coupon/list") 
    print("  POST /api/coupon/receive")
    print("  POST /api/track/event")
    print("  GET  /health")
    
    app.run(debug=True, host='0.0.0.0', port=5000)