@pisell/pisellos
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一个可扩展的前端模块化SDK框架，支持插件系统
501 lines (478 loc) • 23.7 kB
JavaScript
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function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
import { StrategyEngine } from "../../index";
import { processVouchers as _processVouchers, recalculateVouchers as _recalculateVouchers, getApplicableProductIds, getMainProductPrice, getBundleItemPrice, getProductQuantity, getBundleItemIsOriginalPrice, getTaxAndFeeRoundingRemainder, getBundleItemTaxAndFeeRoundingRemainder, getProductDiscountDifference, getBundleItemDiscountDifference } from "./utils";
import { locales } from "./locales";
import Decimal from 'decimal.js';
var defaultStrategyMetadataCustom = {
maxDeductionAmount: 99999,
maxUsagePerOrder: 0,
allowCrossProduct: true,
applicableProductLimit: 0,
deductTaxAndFee: true,
maxPassesPerItem: 0
};
/**
* Wallet Pass 评估器
* 用于评估哪些 voucher 可以在当前订单中使用
*/
export var WalletPassEvaluator = /*#__PURE__*/function () {
function WalletPassEvaluator() {
_classCallCheck(this, WalletPassEvaluator);
_defineProperty(this, "engine", void 0);
_defineProperty(this, "strategyConfigs", []);
_defineProperty(this, "locale", 'en');
this.engine = new StrategyEngine({
debug: false,
enableTrace: false
});
}
_createClass(WalletPassEvaluator, [{
key: "setStrategyConfigs",
value: function setStrategyConfigs(strategyConfigs) {
var newStrategyConfigs = strategyConfigs.filter(function (item) {
return item.metadata.type === 'wallet_pass';
});
this.strategyConfigs = newStrategyConfigs;
}
}, {
key: "getStrategyConfigs",
value: function getStrategyConfigs() {
return this.strategyConfigs;
}
}, {
key: "setLocale",
value: function setLocale(locale) {
this.locale = locale;
}
}, {
key: "getText",
value: function getText(key) {
var _locales$this$locale;
return locales === null || locales === void 0 || (_locales$this$locale = locales[this.locale]) === null || _locales$this$locale === void 0 ? void 0 : _locales$this$locale[key];
}
/**
* 搜索券的格式
* @param input 输入
* @returns 返回搜索券的格式
*/
}, {
key: "searchVoucherFormat",
value: function searchVoucherFormat(input) {
var results = this.evaluate(input);
return results.map(function (item) {
if (item.isApplicable) {
var _item$strategyResult;
return _objectSpread(_objectSpread({}, item.voucher), {}, {
config: _objectSpread({}, item === null || item === void 0 || (_item$strategyResult = item.strategyResult) === null || _item$strategyResult === void 0 ? void 0 : _item$strategyResult.config.metadata.custom)
});
} else {
var _item$strategyResult2;
return _objectSpread(_objectSpread({}, item.voucher), {}, {
config: _objectSpread({}, item === null || item === void 0 || (_item$strategyResult2 = item.strategyResult) === null || _item$strategyResult2 === void 0 ? void 0 : _item$strategyResult2.config.metadata.custom),
_unified_available_status: 0,
reason: item.reason,
reasonCode: item.reasonCode
});
}
});
}
/**
* 评估可用的 vouchers
*/
}, {
key: "evaluate",
value: function evaluate(input) {
var orderTotalAmount = input.orderTotalAmount,
products = input.products,
vouchers = input.vouchers,
strategyConfigs = input.strategyConfigs;
// 提取订单中的商品ID
var productIds = products.map(function (p) {
return p.product_id;
});
var results = [];
// 遍历每个 voucher 进行评估
var _iterator = _createForOfIteratorHelper(vouchers),
_step;
try {
for (_iterator.s(); !(_step = _iterator.n()).done;) {
var _strategy$metadata$cu, _strategy$metadata, _businessConfig$deduc;
var voucher = _step.value;
// 查找适用此 voucher 的策略配置
var applicableStrategies = this.findApplicableStrategies(voucher, strategyConfigs || this.strategyConfigs);
if (applicableStrategies.length === 0) {
// 没有匹配的策略 默认可用
results.push({
voucher: voucher,
isApplicable: true,
canUseCount: 0,
maxDeduction: 0,
deductTaxAndFee: true,
applicableProductIds: [],
reason: '',
reasonCode: '',
strategyResult: {
config: {
metadata: {
custom: _objectSpread({}, defaultStrategyMetadataCustom)
}
}
}
});
continue;
}
// 对每个策略进行评估（取第一个匹配的策略）
var strategy = applicableStrategies[0];
// 从 voucher 中获取适用商品ID
var applicableProductIds = getApplicableProductIds(voucher);
// 计算适用商品的总金额和数量
var _this$calculateApplic = this.calculateApplicableProducts(products, applicableProductIds, (_strategy$metadata$cu = strategy === null || strategy === void 0 || (_strategy$metadata = strategy.metadata) === null || _strategy$metadata === void 0 || (_strategy$metadata = _strategy$metadata.custom) === null || _strategy$metadata === void 0 ? void 0 : _strategy$metadata.deductTaxAndFee) !== null && _strategy$metadata$cu !== void 0 ? _strategy$metadata$cu : true),
applicableTotal = _this$calculateApplic.applicableTotal,
applicableCount = _this$calculateApplic.applicableCount;
// 准备运行时上下文
var context = {
entities: {
voucher: voucher,
products: products,
order: {
orderTotalAmount: orderTotalAmount,
products: products
}
},
attributes: {
orderTotalAmount: orderTotalAmount,
applicableProductTotalAmount: applicableTotal,
applicableProductCount: applicableCount,
voucherProductId: voucher.product_id,
productIds: productIds
},
metadata: {
timestamp: Date.now()
}
};
// 执行策略评估
var evaluationResult = this.engine.evaluate(strategy, context);
// 从策略配置中获取业务配置
var businessConfig = strategy.metadata.custom || {};
var maxDeduction = businessConfig.maxDeductionAmount || 0;
var canUseCount = businessConfig.maxUsagePerOrder || 0;
var deductTaxAndFee = (_businessConfig$deduc = businessConfig.deductTaxAndFee) !== null && _businessConfig$deduc !== void 0 ? _businessConfig$deduc : true;
if (evaluationResult.applicable) {
results.push({
voucher: voucher,
isApplicable: true,
canUseCount: canUseCount,
maxDeduction: maxDeduction,
deductTaxAndFee: deductTaxAndFee,
applicableProductIds: applicableProductIds || [],
strategyResult: evaluationResult
});
} else {
// 根据策略评估结果的 code 映射到 locales 中的原因
var reasonCode = 'not_meet_the_required_conditions'; // 默认原因
// 根据策略引擎返回的 code 映射到本地化的 reasonCode
if (evaluationResult.code) {
// 可以根据具体的 code 映射到不同的原因
// 例如：如果是金额不足、使用次数限制等
var codeMapping = {
INSUFFICIENT_AMOUNT: 'not_meet_the_required_conditions',
USAGE_LIMIT_EXCEEDED: 'usage_limit_reached',
CHANNEL_NOT_ALLOWED: 'not_available_for_this_channel',
ORDER_TYPE_NOT_ALLOWED: 'not_valid_for_this_order_type',
DEDUCTION_LIMIT_EXCEEDED: 'exceeds_the_maximum_deduction_limit'
};
reasonCode = codeMapping[evaluationResult.code] || 'not_meet_the_required_conditions';
}
results.push({
voucher: voucher,
isApplicable: false,
canUseCount: 0,
maxDeduction: 0,
deductTaxAndFee: false,
applicableProductIds: [],
reason: this.getText(reasonCode),
reasonCode: reasonCode,
strategyResult: evaluationResult
});
}
}
} catch (err) {
_iterator.e(err);
} finally {
_iterator.f();
}
return results;
}
/** 检查代金券/折扣卡是否可用 并返回config */
}, {
key: "checkVoucherAvailability",
value: function checkVoucherAvailability(input) {
var _results$, _results$2;
var orderTotalAmount = input.orderTotalAmount,
products = input.products,
vouchers = input.vouchers;
var results = this.evaluate(input);
var isAvailable = ((_results$ = results[0]) === null || _results$ === void 0 ? void 0 : _results$.isApplicable) || false;
return {
isAvailable: isAvailable,
config: _objectSpread({}, (_results$2 = results[0]) === null || _results$2 === void 0 || (_results$2 = _results$2.strategyResult) === null || _results$2 === void 0 || (_results$2 = _results$2.config) === null || _results$2 === void 0 || (_results$2 = _results$2.metadata) === null || _results$2 === void 0 ? void 0 : _results$2.custom)
};
}
/**
* 获取推荐券
* @param input 输入
* @returns 返回推荐券列表
*/
}, {
key: "getRecommendedVouchers",
value: function getRecommendedVouchers(input) {
var orderTotalAmount = input.orderTotalAmount,
products = input.products,
vouchers = input.vouchers;
// 基于后端返回的状态不可用券
var noApplicableVoucher = [];
// 基于后端返回的状态可用券
var applicableVoucher = [];
vouchers.forEach(function (voucher) {
if (voucher.unified_available_status === 1) {
applicableVoucher.push(voucher);
} else {
noApplicableVoucher.push(voucher);
}
});
var results = this.evaluate(_objectSpread(_objectSpread({}, input), {}, {
vouchers: applicableVoucher
}));
var newVouchers = [];
results.forEach(function (item) {
if (item.isApplicable) {
var _item$strategyResult3;
newVouchers.push(_objectSpread(_objectSpread({}, item.voucher), {}, {
config: _objectSpread(_objectSpread({}, defaultStrategyMetadataCustom), (item === null || item === void 0 || (_item$strategyResult3 = item.strategyResult) === null || _item$strategyResult3 === void 0 || (_item$strategyResult3 = _item$strategyResult3.config) === null || _item$strategyResult3 === void 0 || (_item$strategyResult3 = _item$strategyResult3.metadata) === null || _item$strategyResult3 === void 0 ? void 0 : _item$strategyResult3.custom) || {})
}));
} else {
// 不可用的券，添加原因信息
noApplicableVoucher.push(_objectSpread(_objectSpread({}, item.voucher), {}, {
_unified_available_status: 0,
reason: item.reason,
reasonCode: item.reasonCode
}));
}
});
var _this$processVouchers = this.processVouchers(newVouchers, orderTotalAmount, products),
recommended = _this$processVouchers.recommended,
transformList = _this$processVouchers.transformList;
var recommendedAmount = recommended.reduce(function (sum, item) {
return new Decimal(sum).add(item._available_max_amount || 0).toNumber();
}, 0);
return {
// 推荐券总金额
recommendedAmount: recommendedAmount,
// 推荐券列表
recommended: recommended,
// 格式化后的可用券列表
transformList: transformList,
// 后端不可用券列表 和前端基于策略返回的 不可用列表 合并
noApplicableVoucher: noApplicableVoucher
};
}
}, {
key: "enhanceWithReason",
value: function enhanceWithReason(voucher) {
if (voucher._unified_available_status === 0 && voucher.reasonCode) {
return _objectSpread(_objectSpread({}, voucher), {}, {
reason: this.getText(voucher.reasonCode)
});
}
return voucher;
}
/**
* 优惠券处理函数
* @param applicableVouchers 可用的券列表
* @param orderTotalAmount 订单总金额
* @param products 订单商品列表
* @returns 返回推荐券列表和全部列表，每个券包含 _available_max_amount 和 _unified_available_status
*/
}, {
key: "processVouchers",
value: function processVouchers(vouchers, orderTotalAmount, products) {
var _this = this;
var result = _processVouchers(vouchers, orderTotalAmount, products);
return {
recommended: result.recommended.map(function (item) {
return _this.enhanceWithReason(item);
}),
transformList: result.transformList.map(function (item) {
return _this.enhanceWithReason(item);
})
};
}
/**
* 重新计算优惠券状态（基于已选券的增量计算）
* @param allVouchers 所有原始券列表
* @param selectedVouchers 已选中的券列表（按选中顺序）
* @param orderTotalAmount 订单总金额
* @param products 订单商品列表
* @returns 返回更新后的所有券列表和已选券的详细抵扣信息
*/
}, {
key: "recalculateVouchers",
value: function recalculateVouchers(allVouchers, selectedVouchers, orderTotalAmount, products) {
var _this2 = this;
var result = _recalculateVouchers(allVouchers, selectedVouchers, orderTotalAmount, products);
return {
allWithUpdatedStatus: result.allWithUpdatedStatus.map(function (item) {
return _this2.enhanceWithReason(item);
}),
selectedWithDetails: result.selectedWithDetails.map(function (item) {
return _this2.enhanceWithReason(item);
})
};
}
/**
* 查找适用于指定 voucher 的策略配置
*/
}, {
key: "findApplicableStrategies",
value: function findApplicableStrategies(voucher, strategyConfigs) {
var _this3 = this;
return strategyConfigs.filter(function (config) {
// 检查策略的 conditions 中是否包含匹配此 voucher 的规则
return _this3.checkVoucherInStrategy(voucher.product_id, config);
});
}
/**
* 检查策略中是否包含指定的 voucher ID
*/
}, {
key: "checkVoucherInStrategy",
value: function checkVoucherInStrategy(voucherProductId, config) {
var rules = config.conditions.rules;
var _iterator2 = _createForOfIteratorHelper(rules),
_step2;
try {
for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
var rule = _step2.value;
// 如果是条件组，递归检查
if ('operator' in rule && 'rules' in rule) {
if (this.checkVoucherInConditionGroup(voucherProductId, rule)) {
return true;
}
} else {
// 检查是否是 voucherProductId 字段的规则
var conditionRule = rule;
if (conditionRule.field === 'voucherProductId' && conditionRule.operator === 'in' && Array.isArray(conditionRule.value)) {
if (conditionRule.value.includes(voucherProductId)) {
return true;
}
}
// 支持等于判断
if (conditionRule.field === 'voucherProductId' && (conditionRule.operator === '=' || conditionRule.operator === '==')) {
if (conditionRule.value === voucherProductId) {
return true;
}
}
}
}
} catch (err) {
_iterator2.e(err);
} finally {
_iterator2.f();
}
return false;
}
/**
* 递归检查条件组中是否包含 voucher ID
*/
}, {
key: "checkVoucherInConditionGroup",
value: function checkVoucherInConditionGroup(voucherProductId, group) {
var _iterator3 = _createForOfIteratorHelper(group.rules),
_step3;
try {
for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
var rule = _step3.value;
if ('operator' in rule && 'rules' in rule) {
if (this.checkVoucherInConditionGroup(voucherProductId, rule)) {
return true;
}
} else {
if (rule.field === 'voucherProductId' && rule.operator === 'in' && Array.isArray(rule.value)) {
if (rule.value.includes(voucherProductId)) {
return true;
}
}
if (rule.field === 'voucherProductId' && (rule.operator === '=' || rule.operator === '==')) {
if (rule.value === voucherProductId) {
return true;
}
}
}
}
} catch (err) {
_iterator3.e(err);
} finally {
_iterator3.f();
}
return false;
}
/**
* 计算适用商品的总金额和数量
*/
}, {
key: "calculateApplicableProducts",
value: function calculateApplicableProducts(products, applicableProductIds, deductTaxAndFee) {
var total = 0;
var count = 0;
// 如果为空数组，不适用任何商品
if (applicableProductIds !== null && applicableProductIds.length === 0) {
return {
applicableTotal: 0,
applicableCount: 0
};
}
products.forEach(function (product) {
var productQuantity = getProductQuantity(product);
// 检查主商品是否适用
var isMainProductApplicable = applicableProductIds === null || applicableProductIds.includes(product.product_id);
if (isMainProductApplicable) {
// 计算主商品价格（包含加减价子商品）= 单价 * 数量 + 舍入余数 - 商品差额
total += getMainProductPrice(product, deductTaxAndFee) * productQuantity + getTaxAndFeeRoundingRemainder(product, deductTaxAndFee) - getProductDiscountDifference(product);
count += productQuantity;
}
// 检查原价子商品（需要单独判断适用性）
if (product.product_bundle && product.product_bundle.length > 0) {
product.product_bundle.forEach(function (bundleItem) {
// 只处理原价子商品，加减价子商品已包含在主商品价格中
if (getBundleItemIsOriginalPrice(bundleItem)) {
// 检查子商品是否适用
var isBundleItemApplicable = applicableProductIds === null || applicableProductIds.includes(bundleItem.bundle_product_id);
if (isBundleItemApplicable) {
// 计算原价子商品价格 = 总价 + 舍入余数 - 商品差额
var bundleItemQuantity = bundleItem.num * productQuantity;
total += getBundleItemPrice(bundleItem, productQuantity, deductTaxAndFee) + getBundleItemTaxAndFeeRoundingRemainder(bundleItem, deductTaxAndFee) - getBundleItemDiscountDifference(bundleItem);
count += bundleItemQuantity;
}
}
});
}
});
return {
applicableTotal: total,
applicableCount: count
};
}
}]);
return WalletPassEvaluator;
}();