import { getFeatureFlags } from '@/modules/shared/helpers/envHelper'
import { defineRequestDataloaders } from '@/modules/shared/helpers/graphqlHelper'
import {
  getWorkspaceDomainsFactory,
  getWorkspacesFactory
} from '@/modules/workspaces/repositories/workspaces'
import {
  WorkspaceDomain,
  WorkspaceWithOptionalRole
} from '@/modules/workspacesCore/domain/types'
import { keyBy } from 'lodash'

const { FF_WORKSPACES_MODULE_ENABLED } = getFeatureFlags()

declare module '@/modules/core/loaders' {
  interface ModularizedDataLoaders
    extends Partial<ReturnType<typeof dataLoadersDefinition>> {}
}

const dataLoadersDefinition = defineRequestDataloaders(
  ({ ctx, createLoader, deps: { db } }) => {
    const getWorkspaces = getWorkspacesFactory({ db })
    const getWorkspaceDomains = getWorkspaceDomainsFactory({ db })

    return {
      workspaces: {
        /**
         * Get workspace, with the active user's role attached
         */
        getWorkspace: createLoader<string, WorkspaceWithOptionalRole | null>(
          async (ids) => {
            const results = keyBy(
              await getWorkspaces({ workspaceIds: ids.slice(), userId: ctx.userId }),
              (w) => w.id
            )
            return ids.map((id) => results[id] || null)
          }
        )
      },
      workspaceDomains: {
        /**
         * Get workspace, with the active user's role attached
         */
        getWorkspaceDomains: createLoader<string, WorkspaceDomain | null>(
          async (ids) => {
            const results = keyBy(
              await getWorkspaceDomains({ workspaceIds: ids.slice() }),
              (w) => w.id
            )
            return ids.map((id) => results[id] || null)
          }
        )
      }
    }
  }
)

export default FF_WORKSPACES_MODULE_ENABLED ? dataLoadersDefinition : undefined