postQuery static method

EliudQuery postQuery(ProfileInitialised state)

Implementation

static EliudQuery postQuery(ProfileInitialised state) {
  // We could limit the posts retrieve by making adding the condition: 'authorId' whereIn FollowerHelper.following(me, state.app.documentID)
  // However, combining this query with arrayContainsAny in 1 query is not possible currently in the app.
  // For now we lay the responsibility with the one posting the post, i.e. that the readAccess includes the person.
  // More comments, see firestore.rules > match /post/{id} > allow create

  // When we post, we indicate we post to public, followers or just me. The readAccess field is determined with that indicator with the following entries
  // - public: readAccess becomes "PUBLIC", + the list of followers + me
  // - followers: readAccess becomes the list of followers + me
  // - me: readAccess becomes me
  if (state is LoggedInWatchingMyProfile) {
    if (!state.onlyMyPosts) {
      // query where I'm in the readAccess, which means I see my posts and everybody's
      // posts where I was included as follower, be it indicated as publc of as follower:
      // We're not interested in ALL people's posts, we're only interested in the posts of ourselves or
      // or the people I follow
      return EliudQuery()
          .withCondition(EliudQueryCondition('archived',
              isEqualTo: PostArchiveStatus.active.index))
          .withCondition(
              EliudQueryCondition('feedId', isEqualTo: state.feedId))
          .withCondition(EliudQueryCondition('readAccess',
              arrayContainsAny: [state.currentMember.documentID, 'PUBLIC']));
    } else {
      // query where I'm the author. We could include that we're part of the readAccess but that's obsolete
      return EliudQuery()
          .withCondition(EliudQueryCondition('archived',
              isEqualTo: PostArchiveStatus.active.index))
          .withCondition(EliudQueryCondition('authorId',
              isEqualTo: state.currentMember.documentID))
          .withCondition(
              EliudQueryCondition('feedId', isEqualTo: state.feedId));
    }
  } else if (state is LoggedInAndWatchingOtherProfile) {
    if (state.iFollowThisPerson) {
      // query where that person is the author and I'm in the readAccess
      return EliudQuery()
          .withCondition(EliudQueryCondition('archived',
              isEqualTo: PostArchiveStatus.active.index))
          .withCondition(EliudQueryCondition('authorId',
              isEqualTo: state.feedPublicInfoModel.documentID))
          .withCondition(
              EliudQueryCondition('feedId', isEqualTo: state.feedId))
          .withCondition(EliudQueryCondition('readAccess',
              arrayContainsAny: [state.currentMember.documentID]));
    } else {
      // query where that person is the author and PUBLIC in the readAccess
      return publicQueryForAuthor(
          state.feedPublicInfoModel.documentID, state.feedId);
    }
  } else if (state is NotLoggedInWatchingSomeone) {
    return publicQueryForAuthor(
        state.feedPublicInfoModel.documentID, state.feedId);
  } else if (state is WatchingPublicProfile) {
    return publicQuery(state.feedId);
  } else {
    throw Exception('Post query case not expected');
  }
}