/**
 * 支付工具类 - uni-app 版本
 */
import { paymentApi } from '@/api';
import type { CreateOrderParams } from '@/api/types';
import { showToast } from './uni-compat';
import { quickWechatPay, secureWechatPay, handlePaymentResult, type PaymentResult } from './wechat-payment';

declare const uni: any;

/**
 * 发起微信支付（推荐使用新的微信支付方法）
 * @param params 订单参数
 * @param secure 是否使用安全模式（启用支付状态验证）
 * @returns Promise<支付结果>
 */
export const wxPay = async (
    params: CreateOrderParams,
    secure: boolean = false
): Promise<{
    success: boolean;
    outTradeNo?: string;
    msg?: string;
}> => {
    try {
        // 使用新的微信支付集成
        const result: PaymentResult = secure 
            ? await secureWechatPay(params)
            : await quickWechatPay(params);
        
        return {
            success: result.success,
            outTradeNo: result.outTradeNo,
            msg: result.msg
        };
    } catch (error: any) {
        console.error('支付流程失败:', error);
        const errorMsg = error.msg || error.message || '支付失败，请重试';
        showToast({ title: errorMsg, icon: 'none' });
        
        return {
            success: false,
            msg: errorMsg
        };
    }
};

/**
 * 发起快速微信支付（不验证支付状态）
 * @param params 订单参数
 * @returns Promise<支付结果>
 */
export const quickPay = async (params: CreateOrderParams) => {
    return wxPay(params, false);
};

/**
 * 发起安全微信支付（验证支付状态）
 * @param params 订单参数
 * @returns Promise<支付结果>
 */
export const securePay = async (params: CreateOrderParams) => {
    return wxPay(params, true);
};

/**
 * 通用支付方法（带回调处理）
 * @param params 订单参数
 * @param callbacks 支付结果回调
 * @param secure 是否使用安全模式
 */
export const payWithCallbacks = async (
    params: CreateOrderParams,
    callbacks: {
        onSuccess?: (result: any) => void;
        onFail?: (result: any) => void;
        onCancel?: (result: any) => void;
    },
    secure: boolean = false
) => {
    try {
        const result: PaymentResult = secure 
            ? await secureWechatPay(params)
            : await quickWechatPay(params);
        
        handlePaymentResult(result, {
            onSuccess: callbacks.onSuccess,
            onFail: callbacks.onFail,
            onCancel: callbacks.onCancel
        });
        
        return result;
    } catch (error: any) {
        console.error('支付流程失败:', error);
        const errorMsg = error.msg || error.message || '支付失败，请重试';
        
        const failResult = {
            success: false,
            msg: errorMsg
        };
        
        callbacks.onFail?.(failResult);
        return failResult;
    }
};

/**
 * 查询订单状态
 * @param outTradeNo 商户订单号
 * @returns Promise<订单信息>
 */
export const queryOrderStatus = async (outTradeNo: string) => {
    try {
        const res = await paymentApi.queryOrder(outTradeNo);
        return res;
    } catch (error: any) {
        console.error('查询订单失败:', error);
        throw error;
    }
};

/**
 * 轮询查询订单状态（用于支付后确认）
 * @param outTradeNo 商户订单号
 * @param maxAttempts 最大尝试次数
 * @param interval 查询间隔（毫秒）
 * @returns Promise<是否支付成功>
 */
export const pollOrderStatus = async (
    outTradeNo: string,
    maxAttempts: number = 10,
    interval: number = 2000
): Promise<boolean> => {
    for (let i = 0; i < maxAttempts; i++) {
        try {
            const res = await queryOrderStatus(outTradeNo);

            if (res.status === 'paid') {
                return true;
            } else if (res.status === 'cancelled' || res.status === 'refunded') {
                return false;
            }

            // 等待后继续查询
            await new Promise(resolve => setTimeout(resolve, interval));
        } catch (error) {
            console.error(`第${i + 1}次查询订单失败:`, error);

            if (i === maxAttempts - 1) {
                throw error;
            }

            await new Promise(resolve => setTimeout(resolve, interval));
        }
    }

    return false;
};

/**
 * 关闭订单
 * @param outTradeNo 商户订单号
 * @returns Promise<是否成功>
 */
export const closeOrder = async (outTradeNo: string): Promise<boolean> => {
    try {
        await paymentApi.closeOrder(outTradeNo);
        showToast({ title: '订单已关闭', icon: 'success' });
        return true;
    } catch (error: any) {
        console.error('关闭订单失败:', error);
        showToast({ title: error.msg || '关闭订单失败', icon: 'none' });
        return false;
    }
};