134 lines
4.4 KiB
JavaScript
134 lines
4.4 KiB
JavaScript
import assert from 'assert';
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let _PAY_STATE = '';
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export function registerGetPayStateResult(payState) {
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_PAY_STATE = payState;
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}
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export default class WechatPay {
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wpProduct;
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constructor(wpProduct) {
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this.wpProduct = wpProduct;
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}
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decodeRefundNotification(params, body) {
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throw new Error('Method not implemented.');
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}
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getAccountEntity() {
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return ['wpAccount', this.wpProduct.wpAccountId];
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}
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async getAccountAmount(context) {
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const [wpAccount] = await context.select('wpAccount', {
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data: {
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id: 1,
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price: 1,
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},
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filter: {
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id: this.wpProduct.wpAccountId,
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}
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}, { dontCollect: true });
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return wpAccount.price;
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}
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calcTransferTax(price) {
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const { wpAccount } = this.wpProduct;
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const { allowWithdrawTransfer, withdrawTransferLossRatio } = wpAccount;
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assert(allowWithdrawTransfer);
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if (typeof withdrawTransferLossRatio !== 'number') {
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throw new Error('渠道的withdrawTransferLossRatio未设置');
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}
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return [Math.round(price * withdrawTransferLossRatio / 100), 'wpAccount', wpAccount.id];
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}
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calcRefundTax(price) {
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const { wpAccount } = this.wpProduct;
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const refundCompensateRatio = typeof this.wpProduct.refundCompensateRatio === 'number' ? this.wpProduct.refundCompensateRatio : wpAccount.refundCompensateRatio;
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const taxLossRatio = typeof this.wpProduct.taxLossRatio === 'number' ? this.wpProduct.taxLossRatio : wpAccount.taxLossRatio;
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// 返回taxLossRatio * refundCompensateRatio / 100
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if (typeof taxLossRatio !== 'number') {
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throw new Error('渠道的taxLossRatio未设置');
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}
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if (typeof refundCompensateRatio !== 'number') {
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throw new Error('渠道的refundCompensateRatio未设置');
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}
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const value = Math.round(price * taxLossRatio * refundCompensateRatio / 100 / 100);
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return [-value, 'wpAccount', wpAccount.id];
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}
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calcPayTax(price) {
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const { wpProduct } = this;
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const taxLossRatio = wpProduct.taxLossRatio || wpProduct.wpAccount.taxLossRatio;
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assert(typeof taxLossRatio === 'number', '微信渠道的手续费率未配置');
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return [Math.round(price * taxLossRatio / 100), 'wpAccount', wpProduct.wpAccountId];
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}
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async refund(refund, context) {
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return {
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externalId: Math.random().toString(),
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};
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}
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async getRefundState(refund) {
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const r = Math.random();
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if (r < 0.5) {
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return ['refunded', undefined];
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}
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return ['failed', {
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reason: '微信觉得你长得太丑了，就不想给你退款，让你去深圳找马化腾',
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}];
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}
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decodePayNotification(params, body) {
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throw new Error("Method not implemented.");
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}
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/**
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* 参照微信支付prepay接口模拟返回
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* @param pay
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* @param data
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* @param context
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*/
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async prepay(pay, data, context) {
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switch (this.wpProduct.type) {
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case 'app':
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case 'jsapi':
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case 'mp': {
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const prepayId = Math.random().toString();
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data.externalId = prepayId;
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data.meta = {
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prepayId,
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};
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break;
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}
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case 'h5': {
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const h5Url = Math.random().toString();
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data.externalId = h5Url;
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data.meta = {
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h5Url,
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};
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break;
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}
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case 'native': {
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const codeUrl = Math.random().toString();
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data.externalId = codeUrl;
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data.meta = {
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codeUrl,
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};
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break;
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}
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}
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;
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data.timeoutAt = Date.now() + 7000 * 1000; // 微信官方文档过期时间2小时，提前一点
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}
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async getState(pay) {
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if (_PAY_STATE) {
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return [_PAY_STATE, {}];
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}
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const r = Math.random();
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if (r < 0.3) {
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return ['paying', {}];
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}
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else if (r > 0.95) {
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return ['closed', {}];
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}
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return ['paid', {
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successAt: Date.now(),
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}];
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}
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getRefundableAt(successAt) {
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return successAt + 24 * 3600 * 1000;
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}
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async close(pay) {
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}
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}
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