unleash.unleash/src/lib/proxy/createProxyService.ts

import { ProxyService } from './proxy-service';
import { SegmentReadModel } from '../features/segment/segment-read-model';
import ClientMetricsServiceV2 from '../features/metrics/client-metrics/metrics-service-v2';
import SettingService from '../services/setting-service';
import SettingStore from '../db/setting-store';
import {
    createEventsService,
    createFakeEventsService,
    createFakeFeatureToggleService,
    createFeatureToggleService,
} from '../features';
import ConfigurationRevisionService from '../features/feature-toggle/configuration-revision-service';
import { GlobalFrontendApiCache } from './global-frontend-api-cache';
import ClientFeatureToggleReadModel from './client-feature-toggle-read-model';
import { FakeSegmentReadModel } from '../features/segment/fake-segment-read-model';
import FakeSettingStore from '../../test/fixtures/fake-setting-store';
import FakeClientFeatureToggleReadModel from './fake-client-feature-toggle-read-model';
import { IUnleashConfig } from '../types';
import { Db } from '../db/db';

export const createProxyService = (
    db: Db,
    config: IUnleashConfig,
    // client metrics service needs to be shared because it uses in-memory cache
    clientMetricsServiceV2: ClientMetricsServiceV2,
    configurationRevisionService: ConfigurationRevisionService,
): ProxyService => {
    const segmentReadModel = new SegmentReadModel(db);
    const settingStore = new SettingStore(db, config.getLogger);
    const eventService = createEventsService(db, config);
    const settingService = new SettingService(
        { settingStore },
        config,
        eventService,
    );
    // TODO: remove this dependency after we migrate frontend API
    const featureToggleServiceV2 = createFeatureToggleService(db, config);
    const clientFeatureToggleReadModel = new ClientFeatureToggleReadModel(
        db,
        config.eventBus,
    );
    const globalFrontendApiCache = new GlobalFrontendApiCache(
        config,
        segmentReadModel,
        clientFeatureToggleReadModel,
        configurationRevisionService,
    );
    return new ProxyService(
        config,
        { segmentReadModel },
        {
            featureToggleServiceV2,
            clientMetricsServiceV2,
            settingService,
            configurationRevisionService,
        },
        globalFrontendApiCache,
    );
};

export const createFakeProxyService = (
    config: IUnleashConfig,
    clientMetricsServiceV2: ClientMetricsServiceV2,
    configurationRevisionService: ConfigurationRevisionService,
): ProxyService => {
    const segmentReadModel = new FakeSegmentReadModel();
    const settingStore = new FakeSettingStore();
    const eventService = createFakeEventsService(config);
    const settingService = new SettingService(
        { settingStore },
        config,
        eventService,
    );
    // TODO: remove this dependency after we migrate frontend API
    const featureToggleServiceV2 = createFakeFeatureToggleService(config);
    const clientFeatureToggleReadModel = new FakeClientFeatureToggleReadModel();
    const globalFrontendApiCache = new GlobalFrontendApiCache(
        config,
        segmentReadModel,
        clientFeatureToggleReadModel,
        configurationRevisionService,
    );
    return new ProxyService(
        config,
        { segmentReadModel },
        {
            featureToggleServiceV2,
            clientMetricsServiceV2,
            settingService,
            configurationRevisionService,
        },
        globalFrontendApiCache,
    );
};