import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:logging/logging.dart';
import 'package:result_monad/result_monad.dart';
import 'package:riverpod_annotation/riverpod_annotation.dart';

import '../models/auth/profile.dart';
import '../models/exec_error.dart';
import '../models/timeline_entry.dart';
import 'networking/friendica_interactions_client_services.dart';
import 'networking/friendica_statuses_client_services.dart';
import 'reshared_via_services.dart';
import 'timeline_services.dart';

part 'timeline_entry_services.g.dart';

@Riverpod(keepAlive: true)
Map<String, TimelineEntry> _timelineEntries(Ref ref, Profile profile) => {};

final _logger = Logger('TimelineEntryManagerProvider');

@Riverpod(keepAlive: true)
class TimelineEntryManager extends _$TimelineEntryManager {
  var entryId = '';

  @override
  Result<TimelineEntry, ExecError> build(Profile profile, String id) {
    _logger.finest('Building for $id for $profile');
    //ref.cacheFor(const Duration(hours: 1));
    entryId = id;
    final entry = ref.watch(_timelineEntriesProvider(profile))[id];
    if (entry == null) {
      _logger.finest('Entry not found for $id for $profile');
      return buildErrorResult(
        type: ErrorType.notFound,
        message: '$id not found',
      );
    }

    _logger.finest('For $id for $profile returning: \n$entry');
    return Result.ok(entry);
  }

  Result<TimelineEntry, ExecError> upsert(TimelineEntry entry) {
    _logger.fine('Upserting entry for ${entry.id} for $profile');
    if (entry.id != entryId) {
      return buildErrorResult(
        type: ErrorType.argumentError,
        message:
            'Trying to add an entry to a provider that does not match the id: $id',
      );
    } else {
      ref.read(_timelineEntriesProvider(profile))[entryId] = entry;
    }

    if (state.isFailure || entry != state.value) {
      state = Result.ok(entry);
      ref.invalidateSelf(); //Confirm I need to do this, I don't think I do
    }

    return state;
  }

  FutureResult<TimelineEntry, ExecError> toggleFavorited(bool newStatus) async {
    final result = await ref
        .read(changeFavoriteStatusProvider(profile, entryId, newStatus).future)
        .withResult((update) {
      _logger.fine('Updating $entryId for $profile to: \n$update');
      ref.read(_timelineEntriesProvider(profile))[entryId] = update;
    });
    if (result.isSuccess) {
      state = result.execErrorCast();
    }
    return state;
  }

  FutureResult<TimelineEntry, ExecError> resharePost() async {
    final result = await ref
        .read(resharePostProvider(profile, entryId).future)
        .withResult((item) async {
      ref
          .read(resharedViaProvider(profile, entryId).notifier)
          .upsertResharedVia(profile.id);
    }).withResult((update) =>
            ref.read(_timelineEntriesProvider(profile))[entryId] = update);

    state = result.execErrorCast();
    return state;
  }

  FutureResult<TimelineEntry, ExecError> unResharePost() async {
    final result = await ref
        .read(unResharePostProvider(profile, entryId).future)
        .withResult((item) async {
      ref
          .read(resharedViaProvider(profile, entryId).notifier)
          .upsertRemovedSharer(profile.id);
    }).withResult((update) =>
            ref.read(_timelineEntriesProvider(profile))[entryId] = update);

    state = result.execErrorCast();
    return state;
  }

  void remove() {
    _logger.finest('Delete item $entryId');
    ref.read(_timelineEntriesProvider(profile)).remove(entryId);
    ref.read(timelineMaintainerProvider(profile).notifier).sweep(entryId);
    ref.invalidateSelf();
  }
}