import 'package:appwrite/appwrite.dart';
import 'package:appwrite/models.dart';
import 'package:flutter/material.dart';
import 'package:ltx_flutter/appwrite/auth_api.dart';
import 'package:ltx_flutter/constants/constants.dart';
import 'package:intl/intl.dart';

class DatabaseAPI extends ChangeNotifier {
  Client client = Client();
  late final Account account;
  late final Databases databases;
  final AuthAPI auth = AuthAPI();

  late List<Document> _entries = [];

  // Getter methods
  List<Document> get entries => _entries;
  int? get total => _entries.length;

  final DateFormat formatter = DateFormat('yyyy-MM-dd');

  // Constructor
  DatabaseAPI() {
    init();
    getEntries();
  }

  init() {
    client
        .setEndpoint(APPWRITE_URL)
        .setProject(APPWRITE_PROJECT_ID)
        .setSelfSigned();
    account = Account(client);
    databases = Databases(client);
  }

  getEntries({int limit = 100, String dateISO = ""}) async {
    if (dateISO == "") {
      dateISO = DateTime.now().toIso8601String();
    }

    var referenceDate = DateTime.parse("2023-01-01");

    final date = DateTime.parse(dateISO);
    final offset = date.difference(referenceDate).inDays;

    print("Getting $limit entries starting from $offset");

    var response = await databases.listDocuments(
        databaseId: APPWRITE_DATABASE_ID,
        collectionId: COLLECTION,
        queries: [
          Query.orderAsc("date"),
          Query.offset(offset),
          Query.limit(limit),
        ]);
    _entries = response.documents;
    notifyListeners();
  }

  Future<Document> addEntry(
      {required String date,
      List hours = const [],
      int mood = -1,
      String comments = ""}) {
    return databases.createDocument(
        databaseId: APPWRITE_DATABASE_ID,
        collectionId: COLLECTION,
        documentId: date,
        data: {
          'date': DateTime.parse(date),
          'hours': hours,
          'mood': mood,
          'comments': comments
        });
  }

  Future<dynamic> deleteEntry({required String date}) {
    return databases.deleteDocument(
        databaseId: APPWRITE_DATABASE_ID,
        collectionId: COLLECTION,
        documentId: date);
  }
}