from flask import Blueprint, render_template, session, redirect, url_for, flash, jsonify
import requests
from frontend.config import Config
from flask import request

orders_bp = Blueprint('orders', __name__, url_prefix='/orders')

@orders_bp.route('/')
def index():
    if not session.get('token'):
        flash("请先登录", "warning")
        return redirect(url_for('auth.login'))
    return render_template('orders.html', page=1)

@orders_bp.route('/list')
def list_orders():
    if not session.get('token'):
        flash("请先登录", "warning")
        return redirect(url_for('auth.login'))

    status = request.args.get('status', 'in_progress')
    per_page = 20
    page = int(request.args.get('page', 1))

    # 调用后端API
    payload = {
        "token": session['token'],
        "order_status": status,
        "start": (page - 1) * per_page + 1,
        "end": page * per_page
    }

    response = requests.post(
        f"{Config.BASE_API_URL}/admin/orders/query",
        json=payload
    )

    if response.status_code == 200:
        # 修正数据解析方式
        response_data = response.json()
        orders = response_data.get("orders", [])  # 获取订单列表
        total_orders = response_data.get("total", 0)  # 获取总数

        # 修正分页计算逻辑
        import math
        total_pages = math.ceil(total_orders / per_page) if total_orders > 0 else 1

        return render_template('_order_table.html',
                               orders=orders,
                               page=page,
                               total_pages=total_pages,
                               status=status)

    flash("获取订单失败", "danger")
    return redirect(url_for('orders.list_orders'))

@orders_bp.route('/complete/<int:order_id>', methods=['PUT'])
def complete_order(order_id):
    """处理订单完成请求"""
    if not session.get('token'):
        return jsonify({"error": "未授权"}), 401

    # 获取前端参数
    data = request.get_json()
    payload = {
        "token": session['token'],
        "order_id": order_id,
        "end_datetime": data.get('end_datetime').replace(" ", "T")
    }

    # 调用后端API
    backend_response = requests.put(
        f"{Config.BASE_API_URL}/admin/orders/{order_id}/complete",
        json=payload
    )

    return jsonify(backend_response.json()), backend_response.status_code

@orders_bp.route('/settle/<int:order_id>', methods=['PUT'])
def settle_order(order_id):
    """处理订单结算请求"""
    if not session.get('token'):
        return jsonify({"error": "未授权"}), 401

    data = request.get_json()
    payload = {
        "token": session['token'],
        "order_id": order_id,
        "used_points": data.get('used_points', 0),
        "coupon_id": data.get('coupon_id')
    }

    backend_response = requests.put(
        f"{Config.BASE_API_URL}/admin/orders/{order_id}/settle",
        json=payload
    )

    return jsonify(backend_response.json()), backend_response.status_code


@orders_bp.route('/details/<int:order_id>', methods=['GET'])
def get_order_details(order_id):
    """获取订单详情"""
    if not session.get('token'):
        return jsonify({"error": "未授权"}), 401

    try:
        payload = {
            "token": session['token'],
            "order_id": order_id
        }
        # 调用后端API
        backend_response = requests.post(
            f"{Config.BASE_API_URL}/admin/orders/details",
            json=payload

        )
        return jsonify(backend_response.json()), backend_response.status_code
    except Exception as e:
        return jsonify({"error": str(e)}), 500