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84 lines
2.6 KiB
JavaScript
84 lines
2.6 KiB
JavaScript
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const strategySchema = require('./strategy-schema');
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const NameExistsError = require('../error/name-exists-error');
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const {
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STRATEGY_CREATED,
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STRATEGY_DELETED,
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STRATEGY_UPDATED,
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} = require('../event-type');
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class StrategyService {
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constructor({ strategyStore, eventStore }, { getLogger }) {
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this.strategyStore = strategyStore;
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this.eventStore = eventStore;
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this.logger = getLogger('services/strategy-service.js');
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}
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async getStrategies() {
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return this.strategyStore.getStrategies();
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}
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async getStrategy(name) {
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return this.strategyStore.getStrategy(name);
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}
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async removeStrategy(strategyName, userName) {
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const strategy = await this.strategyStore.getStrategy(strategyName);
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await this._validateEditable(strategy);
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await this.strategyStore.deleteStrategy({ name: strategyName });
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await this.eventStore.store({
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type: STRATEGY_DELETED,
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createdBy: userName,
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data: {
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name: strategyName,
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},
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});
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}
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async createStrategy(value, userName) {
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const strategy = await strategySchema.validateAsync(value);
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await this._validateStrategyName(strategy);
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await this.strategyStore.createStrategy(strategy);
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await this.eventStore.store({
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type: STRATEGY_CREATED,
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createdBy: userName,
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data: strategy,
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});
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}
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async updateStrategy(input, userName) {
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const value = await strategySchema.validateAsync(input);
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const strategy = await this.strategyStore.getStrategy(input.name);
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await this._validateEditable(strategy);
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await this.strategyStore.updateStrategy(value);
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await this.eventStore.store({
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type: STRATEGY_UPDATED,
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createdBy: userName,
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data: value,
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});
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}
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async _validateStrategyName(data) {
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return new Promise((resolve, reject) => {
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this.strategyStore
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.getStrategy(data.name)
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.then(() =>
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reject(
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new NameExistsError(
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`Strategy with name ${data.name} already exist!`,
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),
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),
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)
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.catch(() => resolve(data));
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});
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}
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// This check belongs in the store.
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_validateEditable(strategy) {
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if (strategy.editable === false) {
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throw new Error(`Cannot edit strategy ${strategy.name}`);
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}
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}
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}
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module.exports = StrategyService;
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