part of '../collection_browser.dart';

@genCopyWith
@toString
class _State {
  const _State({
    required this.collection,
    this.coverUrl,
    required this.items,
    required this.isLoading,
    required this.transformedItems,
    required this.selectedItems,
    required this.isSelectionRemovable,
    required this.isSelectionManageableFile,
    required this.isEditMode,
    required this.isEditBusy,
    this.editName,
    this.editItems,
    this.editTransformedItems,
    this.editSort,
    required this.isDragging,
    this.error,
    this.message,
  });

  factory _State.init({
    required Collection collection,
    required String? coverUrl,
  }) {
    return _State(
      collection: collection,
      coverUrl: coverUrl,
      items: const [],
      isLoading: false,
      transformedItems: const [],
      selectedItems: const {},
      isSelectionRemovable: true,
      isSelectionManageableFile: true,
      isEditMode: false,
      isEditBusy: false,
      isDragging: false,
    );
  }

  @override
  String toString() => _$toString();

  String get currentEditName => editName ?? collection.name;

  final Collection collection;
  final String? coverUrl;
  final List<CollectionItem> items;
  final bool isLoading;
  final List<_Item> transformedItems;

  final Set<_Item> selectedItems;
  final bool isSelectionRemovable;
  final bool isSelectionManageableFile;

  final bool isEditMode;
  final bool isEditBusy;
  final String? editName;
  final List<CollectionItem>? editItems;
  final List<_Item>? editTransformedItems;
  final CollectionItemSort? editSort;

  final bool isDragging;

  final ExceptionEvent? error;
  final String? message;
}

abstract class _Event {}

@toString
class _UpdateCollection implements _Event {
  const _UpdateCollection(this.collection);

  @override
  String toString() => _$toString();

  final Collection collection;
}

/// Load the content of this collection
@toString
class _LoadItems implements _Event {
  const _LoadItems();

  @override
  String toString() => _$toString();
}

/// Transform the collection list (e.g., filtering, sorting, etc)
@toString
class _TransformItems implements _Event {
  const _TransformItems({
    required this.items,
  });

  @override
  String toString() => _$toString();

  final List<CollectionItem> items;
}

@toString
class _Download implements _Event {
  const _Download();

  @override
  String toString() => _$toString();
}

@toString
class _Export implements _Event {
  const _Export();

  @override
  String toString() => _$toString();
}

@toString
class _BeginEdit implements _Event {
  const _BeginEdit();

  @override
  String toString() => _$toString();
}

@toString
class _EditName implements _Event {
  const _EditName(this.name);

  @override
  String toString() => _$toString();

  final String name;
}

@toString
class _AddLabelToCollection implements _Event {
  const _AddLabelToCollection(this.label);

  @override
  String toString() => _$toString();

  final String label;
}

@toString
class _EditSort implements _Event {
  const _EditSort(this.sort);

  @override
  String toString() => _$toString();

  final CollectionItemSort sort;
}

@toString
class _EditManualSort implements _Event {
  const _EditManualSort(this.sorted);

  @override
  String toString() => _$toString();

  final List<_Item> sorted;
}

@toString
class _TransformEditItems implements _Event {
  const _TransformEditItems({
    required this.items,
  });

  @override
  String toString() => _$toString();

  final List<CollectionItem> items;
}

@toString
class _DoneEdit implements _Event {
  const _DoneEdit();

  @override
  String toString() => _$toString();
}

@toString
class _CancelEdit implements _Event {
  const _CancelEdit();

  @override
  String toString() => _$toString();
}

@toString
class _UnsetCover implements _Event {
  const _UnsetCover();

  @override
  String toString() => _$toString();
}

/// Set the currently selected items
@toString
class _SetSelectedItems implements _Event {
  const _SetSelectedItems({
    required this.items,
  });

  @override
  String toString() => _$toString();

  final Set<_Item> items;
}

/// Download the currently selected items
@toString
class _DownloadSelectedItems implements _Event {
  const _DownloadSelectedItems();

  @override
  String toString() => _$toString();
}

@toString
class _AddSelectedItemsToCollection implements _Event {
  const _AddSelectedItemsToCollection(this.collection);

  @override
  String toString() => _$toString();

  final Collection collection;
}

/// Remove the currently selected items from this collection
@toString
class _RemoveSelectedItemsFromCollection implements _Event {
  const _RemoveSelectedItemsFromCollection();

  @override
  String toString() => _$toString();
}

/// Archive the currently selected files
@toString
class _ArchiveSelectedItems implements _Event {
  const _ArchiveSelectedItems();

  @override
  String toString() => _$toString();
}

/// Delete the currently selected files
@toString
class _DeleteSelectedItems implements _Event {
  const _DeleteSelectedItems();

  @override
  String toString() => _$toString();
}

@toString
class _SetDragging implements _Event {
  const _SetDragging(this.flag);

  @override
  String toString() => _$toString();

  final bool flag;
}

@toString
class _SetError implements _Event {
  const _SetError(this.error, [this.stackTrace]);

  @override
  String toString() => _$toString();

  final Object error;
  final StackTrace? stackTrace;
}

@toString
class _SetMessage implements _Event {
  const _SetMessage(this.message);

  @override
  String toString() => _$toString();

  final String message;
}