import sheep from '@/sheep';
// #ifdef H5
import $wxsdk from '@/sheep/libs/sdk-h5-weixin';
// #endif
import {
	getRootUrl
} from '@/sheep/helper';
import CcbLifePlatform from './provider/ccblife/index';
import ccbApi from './provider/ccblife/api';

/**
 * 支付
 *
 * @param {String} payment = ['wechat','alipay','wallet','offline']  	- 支付方式
 * @param {String} orderType = ['goods','recharge','groupon']  	- 订单类型
 * @param {String} orderSN					- 订单号
 */

export default class SheepPay {
	constructor(payment, orderType, orderSN) {
		this.payment = payment;
		this.orderSN = orderSN;
		this.orderType = orderType;
		this.payAction();
	}

	payAction() {
		// 调试日志：打印当前平台和支付方式
		console.log('[支付调试] 当前平台:', sheep.$platform.name, '支付方式:', this.payment);
		
		const payAction = {
			WechatOfficialAccount: {
				wechat: () => {
					this.wechatOfficialAccountPay();
				},
				alipay: () => {
					this.redirectPay(); // 现在公众号可以直接跳转支付宝页面
				},
				ccb: () => {
					this.ccbPay(); // 建行支付
				},
				money: () => {
					this.moneyPay();
				},
				offline: () => {
					this.offlinePay();
				}
			},
			WechatMiniProgram: {
				wechat: () => {
					this.wechatMiniProgramPay();
				},
				alipay: () => {
					this.copyPayLink();
				},
				ccb: () => {
					sheep.$helper.toast('小程序暂不支持建行支付');
				},
				money: () => {
					this.moneyPay();
				},
				offline: () => {
					this.offlinePay();
				}
			},
			App: {
				wechat: () => {
					this.wechatAppPay();
				},
				alipay: () => {
					this.alipay();
				},
				ccb: () => {
					this.ccbPay(); // 建行支付
				},
				money: () => {
					this.moneyPay();
				},
				offline: () => {
					this.offlinePay();
				}
			},
			H5: {
				wechat: () => {
					// 如果在建行App内，使用建行支付
					if (CcbLifePlatform.isInCcbApp) {
						this.ccbPay();
					} else {
						this.wechatWapPay();
					}
				},
				alipay: () => {
					this.redirectPay();
				},
				ccb: () => {
					this.ccbPay(); // 建行支付
				},
				money: () => {
					this.moneyPay();
				},
				offline: () => {
					this.offlinePay();
				}
			},
			// ⭐ 建行生活平台（CcbLife）
			CcbLife: {
				wechat: () => {
					this.ccbPay(); // 在建行生活内使用建行支付
				},
				alipay: () => {
					sheep.$helper.toast('请使用建行支付');
				},
				ccb: () => {
					this.ccbPay(); // 建行支付
				},
				money: () => {
					this.moneyPay();
				},
				offline: () => {
					this.offlinePay();
				}
			},
		};
		
		// 防御性检查：确保平台配置存在
		if (!payAction[sheep.$platform.name]) {
			console.error('[支付错误] 未知平台:', sheep.$platform.name);
			sheep.$helper.toast('当前平台不支持该支付方式');
			return;
		}
		
		// 防御性检查：确保支付方式存在
		if (!payAction[sheep.$platform.name][this.payment]) {
			console.error('[支付错误] 平台不支持该支付方式:', {
				platform: sheep.$platform.name,
				payment: this.payment
			});
			sheep.$helper.toast(`当前平台不支持${this.payment}支付`);
			return;
		}
		
		return payAction[sheep.$platform.name][this.payment]();
	}

	// 预支付
	prepay() {
		return new Promise((resolve, reject) => {
			let data = {
				order_sn: this.orderSN,
				payment: this.payment,
			};
			if (uni.getStorageSync('openid')) {
				data.openid = uni.getStorageSync('openid');
			}
			sheep.$api.pay.prepay(data).then((res) => {
				res.code === 1 && resolve(res);
				if (res.data === -1 && res.msg === 'miss_openid') {
					uni.showModal({
						title: '微信支付',
						content: '请先绑定微信再使用微信支付',
						success: function (res) {
							if (res.confirm) {
								sheep.$platform.useProvider('wechat').bind();
							}
						},
					});
				}
			});
		});
	}
	// #ifdef H5
	// 微信公众号JSSDK支付
	async wechatOfficialAccountPay() {
		let that = this;
		let {
			code,
			data,
			msg
		} = await this.prepay();
		if (code !== 1) {
			console.log('支付错误', msg);
			return;
		}
		$wxsdk.wxpay(data.pay_data, {
			success: () => {
				that.payResult('success');
			},
			cancel: () => {
				sheep.$helper.toast('支付已手动取消');
			},
			fail: () => {
				that.payResult('fail');
			},
		});
	}

	//浏览器微信H5支付
	async wechatWapPay() {
		const {
			code,
			data
		} = await this.prepay();
		if (code === 1) {
			const redirect_url = `${getRootUrl()}pages/pay/result?orderSN=${this.orderSN}&payment=${this.payment
				}&orderType=${this.orderType}`;
			location.href = `${data.pay_data.h5_url}&redirect_url=${encodeURIComponent(redirect_url)}`;
		}
	}

	// 支付链接
	async redirectPay() {
		let {
			code,
			data
		} = await this.prepay();
		if (code === 1) {
			const redirect_url = `${getRootUrl()}pages/pay/result?orderSN=${this.orderSN}&payment=${this.payment
				}&orderType=${this.orderType}`;
			location.href = data.pay_data + encodeURIComponent(redirect_url);
		}
	}

	// #endif

	// 微信小程序支付
	async wechatMiniProgramPay() {
		let that = this;
		let result = await this.prepay();
		uni.requestPayment({
			provider: 'wxpay',
			...result.data.pay_data,
			success: (res) => {
				that.payResult('success');
			},
			fail: (err) => {
				if (err.errMsg === 'requestPayment:fail cancel') {
					sheep.$helper.toast('支付已手动取消');
				} else {
					that.payResult('fail');
				}
			},
		});
	}

	// 余额支付
	async moneyPay() {
		const {
			code
		} = await this.prepay();
		code === 1 && this.payResult('success');
	}

	// 货到付款
	async offlinePay() {
		const {
			code
		} = await this.prepay();
		code === 1 && this.payResult('success');
	}

	// 支付宝复制链接支付
	async copyPayLink() {
		let that = this;
		let {
			code,
			data
		} = await this.prepay();
		if (code === 1) {
			// 引入showModal 点击确认 复制链接；
			uni.showModal({
				title: '支付宝支付',
				content: '复制链接到外部浏览器',
				confirmText: '复制链接',
				success: (res) => {
					if (res.confirm) {
						sheep.$helper.copyText(data.pay_data);
					}
				},
			});
		}
	}

	// 支付宝支付
	async alipay() {
		let that = this;
		const {
			code,
			data
		} = await this.prepay();
		if (code === 1) {
			uni.requestPayment({
				provider: 'alipay',
				orderInfo: data.pay_data, //支付宝订单数据
				success: (res) => {
					that.payResult('success');
				},
				fail: (err) => {
					if (err.errMsg === 'requestPayment:fail [paymentAlipay:62001]user cancel') {
						sheep.$helper.toast('支付已手动取消');
					} else {
						that.payResult('fail');
					}
				},
			});
		}
	}

	// 微信支付
	async wechatAppPay() {
		let that = this;
		let {
			code,
			data
		} = await this.prepay();
		if (code === 1) {
			uni.requestPayment({
				provider: 'wxpay',
				orderInfo: data.pay_data, //微信订单数据(官方说是string。实测为object)
				success: (res) => {
					that.payResult('success');
				},
				fail: (err) => {
					err.errMsg !== 'requestPayment:fail cancel' && that.payResult('fail');
				},
			});
		}
	}

	// 建行生活支付
	async ccbPay() {
		let that = this;
		console.log('[建行支付] ========== 开始建行支付流程 ==========');
		console.log('[建行支付] 订单号:', this.orderSN);
		console.log('[建行支付] 订单类型:', this.orderType);

		// 检查是否在建行App内
		console.log('[建行支付] 检查建行App环境...');
		console.log('[建行支付] isInCcbApp:', CcbLifePlatform.isInCcbApp);
		console.log('[建行支付] User Agent:', navigator.userAgent);
		console.log('[建行支付] URL参数:', location.search);
		
		if (!CcbLifePlatform.isInCcbApp) {
			console.error('[建行支付] ❌ 不在建行App内');
			sheep.$helper.toast('请在建行生活App内使用建行支付');
			return;
		}
		console.log('[建行支付] ✅ 确认在建行App内');

		// 获取订单ID（从订单号查询）
		console.log('[建行支付] 步骤1: 查询订单信息...');
		try {
			const orderInfo = await sheep.$api.order.detail(this.orderSN);
			console.log('[建行支付] 订单查询结果:', orderInfo);
			
			if (!orderInfo || orderInfo.code !== 1) {
				console.error('[建行支付] ❌ 获取订单信息失败:', orderInfo);
				sheep.$helper.toast('获取订单信息失败');
				return;
			}

			const orderId = orderInfo.data.id;
			console.log('[建行支付] ✅ 订单ID:', orderId);
			console.log('[建行支付] 订单金额:', orderInfo.data.pay_fee);
			console.log('[建行支付] 订单状态:', orderInfo.data.status);

			// 调用后端生成支付串
			console.log('[建行支付] 步骤2: 调用后端生成支付串...');
			console.log('[建行支付] 请求参数:', { order_id: orderId });
			
			const paymentResult = await ccbApi.createPayment(orderId);
			console.log('[建行支付] 支付串生成结果:', paymentResult);

			if (paymentResult.code !== 1) {
				console.error('[建行支付] ❌ 生成支付串失败:', paymentResult);
				console.error('[建行支付] 错误信息:', paymentResult.msg);
				console.error('[建行支付] 完整响应:', JSON.stringify(paymentResult));
				sheep.$helper.toast(paymentResult.msg || '生成支付串失败');
				return;
			}
			
			console.log('[建行支付] ✅ 支付串生成成功');
			console.log('[建行支付] 支付串长度:', paymentResult.data.payment_string?.length);
			console.log('[建行支付] 支付流水号:', paymentResult.data.pay_flow_id);
			console.log('[建行支付] 支付金额:', paymentResult.data.amount);
		} catch (error) {
			console.error('[建行支付] ❌ 异常:', error);
			console.error('[建行支付] 错误堆栈:', error.stack);
			sheep.$helper.toast('支付准备失败: ' + error.message);
			return;
		}

		// 调起建行支付
		console.log('[建行支付] 步骤3: 调起建行收银台...');
		try {
			const paymentParams = {
				payment_string: paymentResult.data.payment_string,
				order_id: orderId,
				order_sn: this.orderSN
			};
			console.log('[建行支付] 调起参数:', {
				order_id: paymentParams.order_id,
				order_sn: paymentParams.order_sn,
				payment_string_length: paymentParams.payment_string?.length
			});
			
			const result = await CcbLifePlatform.payment(paymentParams);
			console.log('[建行支付] 收银台调起结果:', result);

			if (result.code === 0) {
				// ✅ 支付调起成功,开始轮询查询订单状态
				console.log('[建行支付] ✅ 支付调起成功,开始轮询查询订单状态');

				// 显示加载提示
				uni.showLoading({
					title: '支付确认中...',
					mask: true
				});

				// 轮询查询订单状态(最多30次,每次间隔2秒,总共60秒)
				let pollCount = 0;
				const MAX_POLL_COUNT = 30;
				const POLL_INTERVAL = 2000; // 2秒

				const pollPaymentStatus = async () => {
					pollCount++;
					console.log(`[建行支付] 轮询查询 ${pollCount}/${MAX_POLL_COUNT} 次...`);

					try {
						const statusResult = await ccbApi.queryPaymentStatus(orderId);
						console.log('[建行支付] 查询结果:', statusResult);

						if (statusResult.code === 1 && statusResult.data.is_paid) {
							// ✅ 支付成功
							uni.hideLoading();
							console.log('[建行支付] ✅ 订单已支付 order_id:' + orderId);
							console.log('[建行支付] 支付时间:', statusResult.data.paid_time);
							that.payResult('success');
							return;
						}

						console.log('[建行支付] 订单状态:', statusResult.data.status);
						console.log('[建行支付] 是否已支付:', statusResult.data.is_paid);

						// 未支付,继续轮询
						if (pollCount < MAX_POLL_COUNT) {
							console.log(`[建行支付] ${POLL_INTERVAL/1000}秒后继续查询...`);
							setTimeout(pollPaymentStatus, POLL_INTERVAL);
						} else {
							// 超时
							console.warn('[建行支付] ⚠️ 轮询超时，可能支付未完成');
							uni.hideLoading();
							uni.showModal({
								title: '提示',
								content: '支付确认超时,请稍后在订单列表中查看支付状态',
								showCancel: false,
								confirmText: '知道了',
								success: () => {
									// 跳转到订单列表
									sheep.$router.redirect('/pages/order/list');
								}
							});
						}
					} catch (error) {
						console.error('[建行支付] ❌ 查询状态失败:', error);
						console.error('[建行支付] 错误详情:', error.message);

						// 继续轮询(网络错误不中断)
						if (pollCount < MAX_POLL_COUNT) {
							setTimeout(pollPaymentStatus, POLL_INTERVAL);
						} else {
							uni.hideLoading();
							sheep.$helper.toast('支付状态查询失败,请稍后在订单列表中查看');
							that.payResult('fail');
						}
					}
				};

				// 延迟1秒后开始轮询(给建行异步通知留点时间)
				setTimeout(pollPaymentStatus, 1000);

			} else {
				// 支付失败或取消
				console.error('[建行支付] ❌ 支付未成功:', result);
				if (result.msg && result.msg.includes('取消')) {
					console.log('[建行支付] 用户取消支付');
					sheep.$helper.toast('支付已取消');
				} else {
					console.error('[建行支付] 支付失败原因:', result.msg);
					sheep.$helper.toast(result.msg || '支付失败');
					that.payResult('fail');
				}
			}
		} catch (error) {
			console.error('[建行支付] ❌ 异常错误:', error);
			console.error('[建行支付] 错误类型:', error.name);
			console.error('[建行支付] 错误信息:', error.message);
			console.error('[建行支付] 错误堆栈:', error.stack);
			sheep.$helper.toast('支付失败: ' + error.message);
			that.payResult('fail');
		}
		
		console.log('[建行支付] ========== 建行支付流程结束 ==========');
	}

	// 支付结果跳转,success:成功，fail:失败
	payResult(resultType) {
		sheep.$router.redirect('/pages/pay/result', {
			orderSN: this.orderSN,
			payment: this.payment, //重新支付的时候使用
			payState: resultType,
			orderType: this.orderType,
		});
	}
}