import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:photos/core/event_bus.dart';
import 'package:photos/db/files_db.dart';
import 'package:photos/events/collection_updated_event.dart';
import 'package:photos/models/collection.dart';
import 'package:photos/models/selected_files.dart';

import 'gallery.dart';
import 'gallery_app_bar_widget.dart';

class CollectionPage extends StatefulWidget {
  final Collection collection;
  final String tagPrefix;

  const CollectionPage(this.collection,
      {this.tagPrefix = "collection", Key key})
      : super(key: key);

  @override
  _CollectionPageState createState() => _CollectionPageState();
}

class _CollectionPageState extends State<CollectionPage> {
  final _selectedFiles = SelectedFiles();

  @override
  Widget build(Object context) {
    return Scaffold(
      appBar: GalleryAppBarWidget(
        GalleryAppBarType.collection,
        widget.collection.name,
        _selectedFiles,
        collection: widget.collection,
      ),
      body: Gallery(
        creationTimesLoader: () => FilesDB.instance
            .getAllCreationTimesInCollection(widget.collection.id),
        asyncLoader: (creationStartTime, creationEndTime, {limit}) {
          return FilesDB.instance.getFilesInCollection(
              widget.collection.id, creationStartTime, creationEndTime,
              limit: limit);
        },
        reloadEvent: Bus.instance
            .on<CollectionUpdatedEvent>()
            .where((event) => event.collectionID == widget.collection.id),
        tagPrefix: widget.tagPrefix,
        selectedFiles: _selectedFiles,
      ),
    );
  }
}