twenty/packages/twenty-server/src/engine/metadata-modules/flat-view-group/services/workspace-flat-view-group-map-cache.service.ts

import { Injectable } from '@nestjs/common';
import { InjectRepository } from '@nestjs/typeorm';

import { Repository } from 'typeorm';

import { WorkspaceCacheProvider } from 'src/engine/workspace-cache/interfaces/workspace-cache-provider.service';

import { ApplicationEntity } from 'src/engine/core-modules/application/application.entity';
import { createEmptyFlatEntityMaps } from 'src/engine/metadata-modules/flat-entity/constant/create-empty-flat-entity-maps.constant';
import { FlatViewGroupMaps } from 'src/engine/metadata-modules/flat-view-group/types/flat-view-group-maps.type';
import { fromViewGroupEntityToFlatViewGroup } from 'src/engine/metadata-modules/flat-view-group/utils/from-view-group-entity-to-flat-view-group.util';
import { ViewGroupEntity } from 'src/engine/metadata-modules/view-group/entities/view-group.entity';
import { ViewEntity } from 'src/engine/metadata-modules/view/entities/view.entity';
import { WorkspaceCache } from 'src/engine/workspace-cache/decorators/workspace-cache.decorator';
import { createIdToUniversalIdentifierMap } from 'src/engine/workspace-cache/utils/create-id-to-universal-identifier-map.util';
import { addFlatEntityToFlatEntityMapsThroughMutationOrThrow } from 'src/engine/workspace-manager/workspace-migration/utils/add-flat-entity-to-flat-entity-maps-through-mutation-or-throw.util';

@Injectable()
@WorkspaceCache('flatViewGroupMaps')
export class WorkspaceFlatViewGroupMapCacheService extends WorkspaceCacheProvider<FlatViewGroupMaps> {
  constructor(
    @InjectRepository(ViewGroupEntity)
    private readonly viewGroupRepository: Repository<ViewGroupEntity>,
    @InjectRepository(ApplicationEntity)
    private readonly applicationRepository: Repository<ApplicationEntity>,
    @InjectRepository(ViewEntity)
    private readonly viewRepository: Repository<ViewEntity>,
  ) {
    super();
  }

  async computeForCache(workspaceId: string): Promise<FlatViewGroupMaps> {
    const [viewGroups, applications, views] = await Promise.all([
      this.viewGroupRepository.find({
        where: { workspaceId },
        withDeleted: true,
      }),
      this.applicationRepository.find({
        where: { workspaceId },
        select: ['id', 'universalIdentifier'],
        withDeleted: true,
      }),
      this.viewRepository.find({
        where: { workspaceId },
        select: ['id', 'universalIdentifier'],
        withDeleted: true,
      }),
    ]);

    const applicationIdToUniversalIdentifierMap =
      createIdToUniversalIdentifierMap(applications);
    const viewIdToUniversalIdentifierMap =
      createIdToUniversalIdentifierMap(views);

    const flatViewGroupMaps = createEmptyFlatEntityMaps();

    for (const viewGroupEntity of viewGroups) {
      const flatViewGroup = fromViewGroupEntityToFlatViewGroup({
        entity: viewGroupEntity,
        applicationIdToUniversalIdentifierMap,
        viewIdToUniversalIdentifierMap,
      });

      addFlatEntityToFlatEntityMapsThroughMutationOrThrow({
        flatEntity: flatViewGroup,
        flatEntityMapsToMutate: flatViewGroupMaps,
      });
    }

    return flatViewGroupMaps;
  }
}