import 'package:hooks_riverpod/hooks_riverpod.dart';
import 'package:immich_mobile/modules/sharing/models/asset_selection_state.model.dart';

import 'package:immich_mobile/shared/models/immich_asset.model.dart';

class AssetSelectionNotifier extends StateNotifier<AssetSelectionState> {
  AssetSelectionNotifier()
      : super(AssetSelectionState(
          selectedNewAssetsForAlbum: {},
          selectedMonths: {},
          selectedAdditionalAssetsForAlbum: {},
          selectedAssetsInAlbumViewer: {},
          isAlbumExist: false,
          isMultiselectEnable: false,
        ));

  void setIsAlbumExist(bool isAlbumExist) {
    state = state.copyWith(isAlbumExist: isAlbumExist);
  }

  void removeAssetsInMonth(String removedMonth, List<ImmichAsset> assetsInMonth) {
    Set<ImmichAsset> currentAssetList = state.selectedNewAssetsForAlbum;
    Set<String> currentMonthList = state.selectedMonths;

    currentMonthList.removeWhere((selectedMonth) => selectedMonth == removedMonth);

    for (ImmichAsset asset in assetsInMonth) {
      currentAssetList.removeWhere((e) => e.id == asset.id);
    }

    state = state.copyWith(selectedNewAssetsForAlbum: currentAssetList, selectedMonths: currentMonthList);
  }

  void addAdditionalAssets(List<ImmichAsset> assets) {
    state = state.copyWith(
      selectedAdditionalAssetsForAlbum: {...state.selectedAdditionalAssetsForAlbum, ...assets},
    );
  }

  void addAllAssetsInMonth(String month, List<ImmichAsset> assetsInMonth) {
    state = state.copyWith(
      selectedMonths: {...state.selectedMonths, month},
      selectedNewAssetsForAlbum: {...state.selectedNewAssetsForAlbum, ...assetsInMonth},
    );
  }

  void addNewAssets(List<ImmichAsset> assets) {
    state = state.copyWith(
      selectedNewAssetsForAlbum: {...state.selectedNewAssetsForAlbum, ...assets},
    );
  }

  void removeSelectedNewAssets(List<ImmichAsset> assets) {
    Set<ImmichAsset> currentList = state.selectedNewAssetsForAlbum;

    for (ImmichAsset asset in assets) {
      currentList.removeWhere((e) => e.id == asset.id);
    }

    state = state.copyWith(selectedNewAssetsForAlbum: currentList);
  }

  void removeSelectedAdditionalAssets(List<ImmichAsset> assets) {
    Set<ImmichAsset> currentList = state.selectedAdditionalAssetsForAlbum;

    for (ImmichAsset asset in assets) {
      currentList.removeWhere((e) => e.id == asset.id);
    }

    state = state.copyWith(selectedAdditionalAssetsForAlbum: currentList);
  }

  void removeAll() {
    state = state.copyWith(
      selectedNewAssetsForAlbum: {},
      selectedMonths: {},
      selectedAdditionalAssetsForAlbum: {},
      selectedAssetsInAlbumViewer: {},
      isAlbumExist: false,
    );
  }

  void enableMultiselection() {
    state = state.copyWith(isMultiselectEnable: true);
  }

  void disableMultiselection() {
    state = state.copyWith(
      isMultiselectEnable: false,
      selectedAssetsInAlbumViewer: {},
    );
  }

  void addAssetsInAlbumViewer(List<ImmichAsset> assets) {
    state = state.copyWith(
      selectedAssetsInAlbumViewer: {...state.selectedAssetsInAlbumViewer, ...assets},
    );
  }

  void removeAssetsInAlbumViewer(List<ImmichAsset> assets) {
    Set<ImmichAsset> currentList = state.selectedAssetsInAlbumViewer;

    for (ImmichAsset asset in assets) {
      currentList.removeWhere((e) => e.id == asset.id);
    }

    state = state.copyWith(selectedAssetsInAlbumViewer: currentList);
  }
}

final assetSelectionProvider = StateNotifierProvider<AssetSelectionNotifier, AssetSelectionState>((ref) {
  return AssetSelectionNotifier();
});