import 'dart:async';
import 'dart:io';

import 'package:flutter/cupertino.dart';
import 'package:intl/intl.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:tasktracker/NewProject.dart';
import 'package:tasktracker/NotificationsManager.dart';
import 'main.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';
import 'Data.dart';
import 'package:sqflite/sqflite.dart';
import 'package:sqflite_common_ffi/sqflite_ffi.dart' as SqlFF;
import 'package:path_provider/path_provider.dart';
import 'package:device_info_plus/device_info_plus.dart';
import 'package:sqflite_common/sqlite_api.dart';
import 'Tasks.dart';
import 'Dialogs.dart';

bool cacheEnabled = true;

late http.Response loginResponse;

late var cacheDb;
late String username;
List<Category> categories = [];
List<TaskType> taskTypes = [];
List<Activity> activities = [];
List<Project> projects = [];

bool offline = true;
bool registered = false;
StreamController<bool> refreshStream = StreamController.broadcast();
Future<http.Response> login(String _username, String password) async {
  final prefs = await SharedPreferences.getInstance();

  username = _username;
  var device_id = await Settings.UUID();
  try {
    loginResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/login.php'),
        body: <String, String>{"username": _username, "password": password, "device_id": device_id}));

    if (loginResponse.body.toLowerCase().contains("success")) {
      offline = false;
      username = _username;
      registered = loginResponse.body.toLowerCase().contains("register");

      print("registered : $registered");
      if (registered) {
        prefs.setBool("registered", true);
      }
    }
  } catch (e) {
    print("Error while login $e");
  }
  return loginResponse;
}

Future<void> initUserData() async {
  if (cacheEnabled) {
    await initCacheDatabase();
  }

  await refreshUserData();
  BuildBridgeToServer();
  print('Initializing UserData...');

  if (cacheEnabled) {
    // if (Platform.isAndroid || Platform.isIOS) {
    //   Connectivity().onConnectivityChanged.listen((result) {
    //     offline = (result == ConnectivityResult.none);
    //     if (!offline) {
    //       UserOperations.executeQueries();
    //       refreshUserData();
    //     }
    //   });
    // }
  }
}

Future<void> BuildBridgeToServer() async{
  final prefs = await SharedPreferences.getInstance();

  while(true){
    await UserOperations.executeQueries();
    try {
      http.Response response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/bridge.php'),
          body: <String, String>{"username": username}));

      print("bridge retreive (try): ${response.body}");
      List<String> data = response.body.split(",");
      print('Update :\nactivities_rev=${data[0]} tasks_rev=${data[1]} cats_rev=${data[2]} projects_rev=${data[3]}');

      if(data[4].contains('<td>')){
        List<String> ongoingData = data[4].split("<td>");
        if(!prefs.containsKey('current_activity')) {
          StartActivityTimer(ongoingData[0], ongoingData[1], DateTime.parse(ongoingData[2]));
        }
      }else{
        CancelOngoingActivity();
      }

      if(prefs.containsKey('rev')){
        if(prefs.getString('rev') == response.body){
          print('We are on the same page');
        }else{
          print('Gotta update');
          await refreshUserData();
          prefs.setString('rev',response.body);
        }
      }else{
        prefs.setString('rev', response.body);
        await refreshUserData();
      }

    }catch(e){
      print("Error with bridge : $e");
    }
    await Future.delayed(Duration(seconds: 5));

  }
}

bool m_refreshing = false;
Future<void> refreshUserData({bool forceOffline = false}) async {
  print('refreshing user data');
  if(m_refreshing){
    print('Called while refreshing. Return');return;
  }
  m_refreshing=true;

  if(forceOffline) {
    refreshStream.add(true);
    categories = await GetCategories(true);
    taskTypes = await GetTaskTypes(true);
    activities = await GetActivities(true);
    projects= await GetProjects(true);

    refreshStream.add(false);
  }else{

    await updateCatsList();
    await updateTasksList();
    await updateActList();
    await updateProjectsList();
  }

  m_refreshing=false;
  if (cacheEnabled) {
    NotificationManager.RescheduleNotifications();
  }
}


Future<bool> cacheDbExist() async {
  if (Platform.isAndroid || Platform.isIOS) {
    Directory directory = await getApplicationDocumentsDirectory();
    return databaseFactory.databaseExists(directory.path + 'cache.db');
  } else {
    Directory directory = await getApplicationDocumentsDirectory();
    return SqlFF.databaseFactoryFfi.databaseExists(directory.path + 'cache.db');
  }
}

Future<void> updateCatsList() async {
  categories = await GetCategories(false);
}

Future<void> updateTasksList() async {
  taskTypes = await GetTaskTypes(false);
}

Future<void> updateActList() async {
  activities = await GetActivities(false);
}

Future<void> updateProjectsList() async{
  projects = await GetProjects(false);
}

Future<void> initCacheDatabase() async {
  Directory directory = await getApplicationDocumentsDirectory();
  print('database at ' + directory.path + 'cache.db');
  if (Platform.isAndroid || Platform.isIOS) {
    cacheDb = await openDatabase(directory.path + 'cache.db', version: 1, onCreate: onCacheDatabaseCreate, onUpgrade: onCacheDatabaseUpgrade);
  } else {
    cacheDb = await SqlFF.databaseFactoryFfi
        .openDatabase(directory.path + 'cache.db', options: OpenDatabaseOptions(version: 1, onCreate: onCacheDatabaseCreate));
  }
  await UserOperations.executeQueries();
}

void onCacheDatabaseCreate(Database db, int newVersion) async {
  String CategoriesTableSQL =
      'CREATE TABLE Categories(${Category.colCatId} VARCHAR(255) PRIMARY KEY,${Category.colName} TEXT, ${Category.colColor} TEXT, ${Category.colProductive} INTEGER)';
//  print(CategoriesTableSQL);
  await db.execute(CategoriesTableSQL);
  print("Initiated Categories Table");

  String TaskTableSQL = 'CREATE TABLE TaskTypes(id TEXT PRIMARY KEY, ${TaskType.colName} TEXT, ${TaskType.colCategory} TEXT, '
      'FOREIGN KEY (${TaskType.colCategory}) REFERENCES Categories(${Category.colCatId}))';
  // print(TaskTableSQL);
  await db.execute(TaskTableSQL);

  String ActivityTableSQL =
      'CREATE TABLE Activities(id INTEGER PRIMARY KEY AUTOINCREMENT, ${Activity.colType} INT, ${Activity.colStartTime} DATETIME, ${Activity.colEndTime} DATETIME, ${Activity.colMetadata} TEXT, '
      'FOREIGN KEY (${Activity.colType}) REFERENCES TaskTypes(id))';
  // print(ActivityTableSQL);
  await db.execute(ActivityTableSQL);

  String ProjectsTableSQL =
      'CREATE TABLE Projects(id TEXT PRIMARY KEY, ${Project.colName} TEXT, ${Project.colCat} TEXT, ${Project.colSteps} TEXT, ${Project.colDeadline} DATETIME)';
  await db.execute(ProjectsTableSQL);

  String QueriesTableSQL = 'CREATE TABLE Queries(id INTEGER PRIMARY KEY AUTOINCREMENT, ${Queries.colLink} TEXT,${Queries.colData} TEXT)';
//  print(QueriesTableSQL);
  await db.execute(QueriesTableSQL);
  final prefs = await SharedPreferences.getInstance();

  if (prefs.getBool("registered") ?? false) {
    addInitialDataToCache();
    prefs.setBool("registered", false);
  }
  // GetCategories();
}

Future<void> addInitialDataToCache() async {
  Dialogs.syncingMessage= "Adding initial data";
  print("adding init data");
  await Future.delayed(const Duration(seconds: 1));

  //Insert Initial Entries
  for (Category element in InitialData.getCategories(username)) {
    await UserOperations.addCategory(element.name, element.color, element.productive, bulk: true);
  }
  Dialogs.syncingMessage= "Just a minute";
  for (TaskType element in InitialData.getTaskTypes(username)) {
    await UserOperations.addTaskType(element.name, element.category, bulk: true);
    // Map<String,Object> data = {
    //   TaskType.colName: element.name,
    //   TaskType.colCategory: element.category
    // };
    // await cacheDb.insert('TaskTypes', data);
  }
  Dialogs.syncingMessage= "Syncing";
  await UserOperations.executeQueries();
 // await refreshUserData();
}

void onCacheDatabaseUpgrade(Database db, int oldVersion, int newVersion) async {
  //ValidateCacheDB();
  print('Upgrading CacheDB from ver.$oldVersion to ver.$newVersion');
}

Future<List<Category>> GetCategories(bool forceOffline) async {
  if (cacheEnabled) {
    List<Category> _categories = [];
    if (offline || forceOffline) {
      //Retreive from cacheDB

    } else {
      //Check if server got updated, If not go for cache
      var android_id = await Settings.UUID();

      //Validate device_id to check updates

      bool catsUpdated = false;
      // try {
      //   http.Response update_response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/check_update.php'), body: <String, String>{"username": username, "device_id": android_id}));
      //   final data = update_response.body.split(',');
      //   catsUpdated = data[0] == '1';
      // } catch (e) {
      //   print(e);
      // }

      print("Need to update : ${!catsUpdated}");

      //Update CacheDB
      if (!catsUpdated) {
        await UpdateCategoriesFromServer();
      }
    }

    List<Map> cats = await cacheDb.query('Categories');
    print(cats.length);
    for (Map element in cats) {
      String? catName = element[Category.colName].toString();
      String? catColor = element[Category.colColor].toString();
      String? catProductive = element[Category.colProductive].toString();
      if (catName == null || catColor == null || catProductive == null) {
        print("Something is null!");
        print("name:{$catName}, color:{$catColor}, prod:{$Category.colProductive}");
        continue;
      }
      //  print("name:{$catName}, color:{$catColor}, prod:{$catProductive}");
      _categories.add(Category(username + catName, catName, catColor, ParseBool(catProductive)));
    }
    categories = _categories;
  } else {
    print("NC: Updating Categories as $username");
    try {
      http.Response response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/get_categories.php'),
          body: <String, String>{"username": username, "device_id": await Settings.UUID()}));

      print(response.body);
      List<String> data = response.body.split("<td>");
      List<Category> _categories = [];
      for (var value in data) {
        Map<String, dynamic> cat = jsonDecode(value);
        //print(catData);
        _categories.add(Category(cat['category_id'], cat['name'], cat['color'], ParseBool(cat['productive'])));
      }
      categories = _categories;
    } catch (e) {
      print("Error while cats NC: $e");
    }
  }
  return categories;
}

Future<void> UpdateCategoriesFromServer() async {
  print("Updating Categories as $username");
  try {
    http.Response response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/get_categories.php'),
        body: <String, String>{"username": username, "device_id": await Settings.UUID()}));

    print(response.body);
    List<String> data = response.body.split("<td>");
    // await cacheDb.delete("Categories");
    for (var value in data) {
      Map<String, dynamic> cat = jsonDecode(value);
      //print(catData);
      await cacheDb
          .rawInsert("INSERT OR REPLACE INTO Categories (${Category.colCatId},${Category.colName},${Category.colProductive},${Category.colColor}) "
              "VALUES ('${cat['category_id']}','${cat['name']}',${cat['productive']},'${cat['color']}') ");
    }
  } catch (e) {
    print("Error while cats $e");
  }
}

Future<List<TaskType>> GetTaskTypes(bool forceOffline) async {
  if (cacheEnabled) {
    List<TaskType> _taskTypes = [];
    if (offline || forceOffline) {
      //Retreive from cacheDB

    } else {
      //Check if server got updated, If not go for cache
      var android_id = await Settings.UUID();

      bool updated = false;
      // try {
      //   //Validate device_id to check updates
      //   http.Response update_response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/check_update.php'), body: <String, String>{"username": username, "device_id": android_id}));
      //   final data = update_response.body.split(',');
      //   updated = data[1] == '1';
      // } catch (e) {
      //   print(e);
      // }

      print("Need to update : ${!updated}");

      //Update CacheDB
      if (!updated) {
        await UpdateTaskTypesFromServer();
      }
    }

    await Future.delayed(Duration(seconds: 1));

    List<Map> cats = await cacheDb.query('TaskTypes');
    print(cats.length);
    for (Map element in cats) {
      String? id = element[TaskType.colId].toString();
      String? name = element[TaskType.colName].toString();
      String? category = element[TaskType.colCategory].toString();
      Category? cat = await getCatFromId(category);
      if (id == null || name == null || category == null) {
        print("Something is null!");
        print("name:{$name}, cat:{$category}, prod:{$id}");
        continue;
      }
      // print("name:{$name}, cat:{$category}, prod:{$id}");
      _taskTypes.add(TaskType(id, name, category, cat));
    }
    taskTypes = _taskTypes;
  } else {
    List<TaskType> _taskTypes = [];
    print("NC: Updating TaskTypes as $username");
    try {
      http.Response response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/get_taskTypes.php'),
          body: <String, String>{"username": username, "device_id": await Settings.UUID()}));

      print("taskType retreive (try): ${response.body}");
      List<String> data = response.body.split("<td>");

      for (var value in data) {
        Map<String, dynamic> data = jsonDecode(value);
        Category? cat = await getCatFromId(data['category_id']);
        _taskTypes.add(TaskType(data['task_id'], data['name'], data['category_id'], cat));
        //print(cat);
      }
    }catch(e){
      print("Error while tasks NC $e");
    }

    taskTypes = _taskTypes;
  }
  return taskTypes;
}

Future<void> UpdateTaskTypesFromServer() async {
  // await GetCategories(true);
  print("Updating TaskTypes as $username");
  try {
    http.Response response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/get_taskTypes.php'),
        body: <String, String>{"username": username, "device_id": await Settings.UUID()}));

    print(response.body);
    List<String> data = response.body.split("<td>");
    await cacheDb.delete("TaskTypes");
    for (var value in data) {
      Map<String, dynamic> cat = jsonDecode(value);
      //print(cat);
      await cacheDb.rawInsert("INSERT OR REPLACE INTO TaskTypes (${TaskType.colId},${TaskType.colName},${TaskType.colCategory}) "
          "VALUES ('${cat['task_id']}','${cat['name']}','${cat['category_id']}') ");

      print(await cacheDb.query("TaskTypes"));
    }
  } catch (e) {
    print("Error while tasks $e");
  }
}


void StartActivityTimer(String taskType, String metadata, DateTime startTime) async{
  final prefs = await SharedPreferences.getInstance();

  prefs.setString('current_activity', "$taskType<td>$metadata<td>${UserOperations.dFormat.format(startTime)}");
  NotificationManager.RescheduleNotifications();

  UserOperations.startOngoing(prefs.getString('current_activity')!);

}

Future<List<String>?> getOngoingData() async{
  final prefs = await SharedPreferences.getInstance();
  if(prefs.containsKey('current_activity')){
    List<String> data = [];
    try{
      data = prefs.getString('current_activity')!.split('<td>');
      return data;
    }catch(e){
    }
  }else{
  }
}

void StopActivityTimer() async{
  final prefs = await SharedPreferences.getInstance();
  try {
    List<String> data = prefs.getString('current_activity')!.split("<td>");
    UserOperations.addActivity(data[0], DateTime.parse(data[2]), DateTime.now(),metadata: data[1]);
  }catch(e){}
  prefs.remove('current_activity');
  UserOperations.stopOngoing();
}

void CancelOngoingActivity() async{
  final prefs = await SharedPreferences.getInstance();
  prefs.remove('current_activity');
  UserOperations.stopOngoing();
}

Future<List<Activity>> GetActivities(bool forceOffline) async {
  if (cacheEnabled) {
    List<Activity> _activities = [];
    if (offline || forceOffline) {
      //Retreive from cacheDB
      print('offline, refreshing activities');
    } else {
      //Check if server got updated, If not go for cache
      var android_id = await Settings.UUID();

      bool updated = false;
      // try {
      //   //Validate device_id to check updates
      //   http.Response update_response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/check_update.php'), body: <String, String>{"username": username, "device_id": android_id}));
      //   final data = update_response.body.split(',');
      //   updated = data[2] == '1';
      // } catch (e) {
      //   print(e);
      // }

      print("Need to update activities : ${!updated}");

      //Update CacheDB
      if (!updated) {
        await UpdateActivitiesFromServer();
      }
    }

    List<Map> cats = await cacheDb.rawQuery('SELECT * FROM Activities ORDER BY ${Activity.colStartTime} DESC');
    print(cats.length);
    for (Map element in cats) {
      int? id = element['id'];
      String? type = element[Activity.colType].toString();
      String? startTime = element[Activity.colStartTime].toString();
      String? endTime = element[Activity.colEndTime].toString();
      String? metadata = element[Activity.colMetadata].toString();
      TaskType? taskType = await getTaskFromId(type);
      if (type == null || startTime == null || endTime == null || taskType == null) {
        print("Something is null!\ntype:${type == null}, startTime:${startTime == null}, eTime:${endTime == null}, taskType${taskType == null}");
        print("TaskType:{$type}, Start Time:{$startTime}, endTime:{$endTime}, metadata:${metadata}");
        continue;
      }
      //print("TaskType:{$type}, Start Time:{$startTime}, endTime:{$endTime}, metadata:${metadata}");
      DateTime sTime = DateTime.parse(startTime);
      DateTime eTime = DateTime.parse(endTime);

      if (eTime.day != sTime.day) {
        DateTime midnight = DateTime(eTime.year, eTime.month, eTime.day, 0, 0, 0);
        int firstHalf = eTime.difference(midnight).inMinutes;
        int secondHalf = midnight.difference(sTime).inMinutes;
        //  print("${taskType.name} first half : $firstHalf -> second half: $secondHalf");
        if (firstHalf > 1) {
          _activities.add(Activity(taskType, midnight, eTime, metadata: metadata, tStartTime: sTime));
        }
        if (secondHalf > 1) {
          _activities.add(Activity(taskType, sTime, midnight, metadata: metadata, tEndTime: eTime));
        }
      } else {
        _activities.add(Activity(taskType, DateTime.parse(startTime), DateTime.parse(endTime), metadata: metadata));
      }
    }
    activities = _activities;
  } else {
    print("NC :Updating Activities as $username");
    try {
      http.Response response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/get_activities.php'),
          body: <String, String>{"username": username, "device_id": await Settings.UUID()}));

      print("Activity response: ${response.body}");
      List<Activity> _activities = [];
      if (response.body.contains("{")) {
        List<String> data = response.body.split("<td>");

        for (var value in data) {
          Map<String, dynamic> cat = jsonDecode(value);
          int? id = cat['id'];
          String? type = cat['task_id'].toString();
          String? startTime = cat['sTime'].toString();
          String? endTime = cat['eTime'].toString();
          String? metadata = cat['metadata'];
          TaskType? taskType = await getTaskFromId(type);
          if (taskType == null) {
            print('null found');
            continue;
          }
          //print("TaskType:{$type}, Start Time:{$startTime}, endTime:{$endTime}, metadata:${metadata}");
          DateTime sTime = DateTime.parse(startTime);
          DateTime eTime = DateTime.parse(endTime);

          if (eTime.day != sTime.day) {
            DateTime midnight = DateTime(eTime.year, eTime.month, eTime.day, 0, 0, 0);
            int firstHalf = eTime.difference(midnight).inMinutes;
            int secondHalf = midnight.difference(sTime).inMinutes;
            //  print("${taskType.name} first half : $firstHalf -> second half: $secondHalf");
            if (firstHalf > 1) {
              _activities.add(Activity(taskType, midnight, eTime, metadata: metadata, tStartTime: sTime));
            }
            if (secondHalf > 1) {
              _activities.add(Activity(taskType, sTime, midnight, metadata: metadata, tEndTime: eTime));
            }
          } else {
            _activities.add(Activity(taskType, DateTime.parse(startTime), DateTime.parse(endTime), metadata: metadata));
          }
        }

        activities = _activities.reversed.toList();
      } else {
        print("No activities for now");
      }
    } catch (e) {
      print("Error : $e @ updating activities");
      print("Error while acts $e");
    }
  }
  return activities;
}

Future<void> UpdateActivitiesFromServer() async {
  print("Updating Activities as $username");

  try {
    http.Response response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/get_activities.php'),
        body: <String, String>{"username": username, "device_id": await Settings.UUID()}));

    await cacheDb.rawDelete("DELETE FROM Activities");
    print('Truncate Activity Table before');

    print("Activity response: ${response.body}");
    if (response.body.contains("{")) {
      List<String> data = response.body.split("<td>");

      for (var value in data) {
        Map<String, dynamic> cat = jsonDecode(value);
        //print(cat);
        await cacheDb.rawInsert(
            "INSERT OR REPLACE INTO Activities (${Activity.colType}, ${Activity.colStartTime}, ${Activity.colEndTime}, ${Activity.colMetadata}) "
            "VALUES ('${cat['task_id']}', '${cat['sTime']}','${cat['eTime']}', '${cat['metadata']}') ");
      }
    } else {
      print("No activities for now");
    }
  } catch (e) {
    print("Error : $e @ updating activities");
    print("Error while acts $e");
  }
}

Future<List<Project>> GetProjects(bool forceOffline) async {
  if (cacheEnabled) {
    List<Project> _projects = [];
    if (offline || forceOffline) {
      //Retreive from cacheDB
      print('offline, refreshing projects');
    } else {
      //Check if server got updated, If not go for cache
      var android_id = await Settings.UUID();

      bool updated = false;

      print("Need to update activities : ${!updated}");

      //Update CacheDB
      if (!updated) {
        await UpdateProjectsFromServer();
      }
    }

    List<Map> cats = await cacheDb.rawQuery('SELECT * FROM Projects');
    print(cats.length);
    for (Map element in cats) {
      String? name = element[Project.colName];
      String? category = element[Project.colCat];
      String? stepsJson = element[Project.colSteps];
      String? deadline = element[Project.colDeadline];

      if (name == null || category == null || stepsJson == null || deadline == null) {
        print("Something is null!\nname:${name == null}, cat:${category == null}, steps:${stepsJson == null}, deadline${deadline == null}");
        print("TaskType:{$name}, Start Time:{$category}, endTime:{$stepsJson}, metadata:${deadline}");
        continue;
      }
      Category? cat = await getCatFromId(category);
      if(cat==null){print('couldnt find cat');continue;}
      print('steps : $stepsJson');
      List<dynamic> _steps = jsonDecode(stepsJson);
      List<ProjectStep> steps = [];
      _steps.forEach((element) {
        ProjectStep step = ProjectStep.fromJson(element);
        steps.add(step);
        print(element);
      });
    //  print(steps);

      _projects.add(Project(name.replaceAll(username, ""),category,steps,DateTime.parse(deadline),cat: cat));
    }
    projects = _projects;
  } else {
    print("NC :Updating Projects as $username");
    try {
      http.Response response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/get_projects.php'),
          body: <String, String>{"username": username, "device_id": await Settings.UUID()}));

      print("Activity response: ${response.body}");
      List<Project> _projects = [];
      if (response.body.contains("{")) {
        List<String> data = response.body.split("<td>");

        for (var value in data) {
          Map<String, dynamic> cat = jsonDecode(value);
          int? id = cat['id'];
          String? type = cat['task_id'].toString();
          String? startTime = cat['sTime'].toString();
          String? endTime = cat['eTime'].toString();
          String? metadata = cat['metadata'];
          TaskType? taskType = await getTaskFromId(type);
          if (taskType == null) {
            print('null found');
            continue;
          }

        }

        projects = _projects;
      } else {
        print("No activities for now");
      }
    } catch (e) {
      print("Error : $e @ updating activities");
      print("Error while acts $e");
    }
  }
  return projects;
}

Future<void> UpdateProjectsFromServer() async {
  print("Updating Projects as $username");

  try {
    http.Response response = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/get_projects.php'),
        body: <String, String>{"username": username, "device_id": await Settings.UUID()}));

    await cacheDb.rawDelete("DELETE FROM Projects");
    print('Truncate Projects Table before');

    print("Projects response: ${response.body}");
    if (response.body.contains("{")) {
      List<String> data = response.body.split("<td>");

      for (var value in data) {
        Map<String, dynamic> cat = jsonDecode(value);
        print('project data');
        print(cat);
        await cacheDb.rawInsert(
            "INSERT OR REPLACE INTO Projects (${Project.colName}, ${Project.colCat}, ${Project.colSteps}, ${Project.colDeadline}) "
                "VALUES ('${cat['name']}', '${cat['category']}', '${cat['steps']}', '${cat['deadline']}')");
      }
    } else {
      print("No activities for now");
    }
  } catch (e) {
    print("Error : $e @ updating activities");
    print("Error while acts $e");
  }
}

Future<TaskType?> getTaskFromId(String taskId) async {
  // await GetTaskTypes(false);
  TaskType? cat = null;
  for (var element in taskTypes) {
    if (element.id == taskId) {
      cat = element;
      cat?.cat = await getCatFromId((cat?.category ?? ''));
    }
  }
  if (cat == null) {
    print('Got null tasktype for ${taskId} after searching on ${taskTypes.length}');
  }

  return cat;
}

Future<Category?> getCatFromId(String catId) async {
  // await GetTaskTypes(false);
  Category? cat = null;
  for (var element in categories) {
    if (element.category_id == catId) {
      cat = element;
    }
  }

  return cat;
}

//Helpers
class Helpers {
  Future<String?> _getId() async {
    var deviceInfo = DeviceInfoPlugin();
    if (Platform.isIOS) {
      // import 'dart:io'
      var iosDeviceInfo = await deviceInfo.iosInfo;
      return iosDeviceInfo.identifierForVendor; // unique ID on iOS
    } else {
      var androidDeviceInfo = await deviceInfo.androidInfo;
      return androidDeviceInfo.androidId; // unique ID on Android
    }
  }
}

bool ParseBool(obj) {
  return obj.toString().toLowerCase() == "true" || obj.toString() == "1";
}

class UserOperations {
  static DateFormat dFormat = DateFormat("yyyy-MM-dd HH:mm:ss");

  static Future<void> addCategory(String name, String color, bool productive, {bool bulk = false}) async {
    Map<String, String> queryBody = <String, String>{
      'username': username,
      'device_id': await Settings.UUID(),
      'name': name,
      'color': color,
      'productive': productive ? '1' : '0'
    };
    if (cacheEnabled) {
      //Add Query
      Map<String, Object> query = {Queries.colLink: 'add_category', Queries.colData: jsonEncode(queryBody)};

      print("adding new query ${query[Queries.colLink]} : ${jsonEncode(queryBody)}");

      await cacheDb.insert('Queries', query);

      //update Cache
      Map<String, Object> data = {
        Category.colCatId: username + name,
        Category.colName: name,
        Category.colColor: color,
        Category.colProductive: productive
      };
      await cacheDb.insert('Categories', data);
      await refreshUserData(forceOffline: true);
    } else {
      try {
        http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/add_category.php'), body: queryBody));
        print("Query executed : Results{${queryResponse.body}");
        if (queryResponse.body.toLowerCase().contains("success")) {
          //Success
        }
      } catch (e) {
        print('NC: Error editing acti $e}');
      }
      //executeQueries();
    }
    if (!bulk) {
      //Add to server and refresh Cache
      await executeQueries();
    }
  }

  static Future<void> addTaskType(String name, String category, {bool bulk = false}) async {
    Map<String, String> queryBody = <String, String>{
      'id': username + name,
      'username': username,
      'device_id': await Settings.UUID(),
      'name': name,
      'category': username + category
    };

    if (cacheEnabled) {
      //Add Query
      Map<String, Object> query = {Queries.colLink: 'add_taskType', Queries.colData: jsonEncode(queryBody)};

      print("adding new query ${query[Queries.colLink]} : ${jsonEncode(queryBody)}");

      await cacheDb.insert('Queries', query);

      //update Cache
      Map<String, Object> data = {TaskType.colId: username + name, Category.colName: name, Category.colCatId: username + category};
      await cacheDb.insert('TaskTypes', data);
      await refreshUserData(forceOffline: true);
    } else {
      try {
        http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/add_taskType.php'), body: queryBody));
        print("Query executed : Results{${queryResponse.body}");
        if (queryResponse.body.toLowerCase().contains("success")) {
          //Success
        }
      } catch (e) {
        print('NC: Error editing acti $e}');
      }
    }
    if (!bulk) {
      //Add to server and refresh Cache
      await executeQueries();
    }
  }

  static Future<void> addActivity(String type, DateTime sTime, DateTime eTime,
      {String metadata = 'null', bool bulk = false, Function(int)? onOverlap}) async {
    Map<String, String> queryBody = <String, String>{
      'username': username,
      'device_id': await Settings.UUID(),
      'type': username + type,
      'sTime': dFormat.format(sTime),
      'eTime': dFormat.format(eTime),
      'metadata': metadata
    };
    Map<String, Object> query = {Queries.colLink: 'add_activity', Queries.colData: jsonEncode(queryBody)};
    if (cacheEnabled) {
      //Check for timeoverlapse
      activities = await GetActivities(true);
      int? overlapCount = Sqflite.firstIntValue(await cacheDb.rawQuery(
          "SELECT COUNT(*) FROM Activities WHERE (((${Activity.colStartTime} < datetime('$sTime')) AND ((${Activity.colEndTime} > datetime('$eTime')) OR (${Activity.colEndTime} < datetime('$eTime') AND ${Activity.colEndTime} > datetime('$sTime')))) OR (${Activity.colStartTime} > datetime('$sTime') AND ${Activity.colStartTime} < datetime('$eTime')) OR (${Activity.colStartTime}=datetime('$sTime') AND ${Activity.colEndTime}=datetime('$eTime')))"));

      print("ActivityOverlaps: $overlapCount");
      if (overlapCount! > 0) {
        onOverlap!(overlapCount);
        return;
      }

      if (metadata.length > 0) {}
      //Add Query

      print("adding new query ${query[Queries.colLink]} : ${jsonEncode(queryBody)}");

      await cacheDb.insert('Queries', query);

      //update Cache
      Map<String, Object> data = {
        Activity.colType: username + type,
        Activity.colStartTime: dFormat.format(sTime),
        Activity.colEndTime: dFormat.format(eTime),
        Activity.colMetadata: metadata
      };
      await cacheDb.insert('Activities', data);
      await refreshUserData(forceOffline: true);
    } else {
      try {
        http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/add_activity.php'), body: queryBody));
        print("Query executed : Results{${queryResponse.body}");
        if (queryResponse.body.toLowerCase().contains("success")) {
          //Success
        }
      } catch (e) {
        print('NC: Error adding player $e}');
      }
    }
    if (!bulk) {
      //Add to server and refresh Cache
      await executeQueries();
    }
  }

  static Future<void> editActivity(DateTime init_sTime, DateTime init_eTime, String type, DateTime sTime, DateTime eTime,
      {String metadata = 'null', bool bulk = false, Function(int)? onOverlap}) async {
    Map<String, String> queryBody = <String, String>{
      'username': username,
      'device_id': await Settings.UUID(),
      'type': username + type,
      'init_sTime': dFormat.format(init_sTime),
      'init_eTime': dFormat.format(init_eTime),
      'sTime': dFormat.format(sTime),
      'eTime': dFormat.format(eTime),
      'metadata': metadata
    };
    Map<String, Object> query = {Queries.colLink: 'edit_activity', Queries.colData: jsonEncode(queryBody)};
    if (cacheEnabled) {
      //Check for timeoverlapse
      activities = await GetActivities(true);
      int? overlapCount = Sqflite.firstIntValue(await cacheDb.rawQuery(
          "SELECT COUNT(*) FROM Activities WHERE (((${Activity.colStartTime} < datetime('$sTime')) AND ((${Activity.colEndTime} > datetime('$eTime')) OR (${Activity.colEndTime} < datetime('$eTime') AND ${Activity.colEndTime} > datetime('$sTime')))) OR (${Activity.colStartTime} > datetime('$sTime') AND ${Activity.colStartTime} < datetime('$eTime')) OR (${Activity.colStartTime}=datetime('$sTime') AND ${Activity.colEndTime}=datetime('$eTime'))) AND ${Activity.colStartTime}!=datetime('${init_sTime}') AND ${Activity.colEndTime} != datetime('${init_eTime}')"));

      print("ActivityOverlaps: $overlapCount");
      if (overlapCount! > 0) {
        onOverlap!(overlapCount);
        return;
      }

      if (metadata.length > 0) {}
      //Add Query

      print("adding new query ${query[Queries.colLink]} : ${jsonEncode(queryBody)}");

      await cacheDb.insert('Queries', query);

      //update Cache
      // Map<String, Object> data = {Activity.colType: username + type, Activity.colStartTime: dFormat.format(sTime), Activity.colEndTime: dFormat.format(eTime), Activity.colMetadata: metadata};
      // String updateActQuery = "UPDATE Activities SET ${Activity.colType}=";
      // await cacheDb.insert('Activities', data);
      await refreshUserData(forceOffline: true);
    } else {
      // queries.add(Queries('edit_activity', jsonEncode(queryBody)));
      try {
        http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/edit_activity.php'), body: queryBody));
        print("Query executed : Results{${queryResponse.body}");
        if (queryResponse.body.toLowerCase().contains("success")) {
          //Success
        }
      } catch (e) {
        print('NC: Error editing acti $e}');
      }
    }
    if (!bulk) {
      //Add to server and refresh Cache
      await executeQueries();
    }
  }

  static Future<void> startOngoing(String activityData) async {
    Map<String, String> queryBody = <String, String>{
      'username': username,
      'current_activity': activityData,
    };

    if (cacheEnabled) {
      //Add Query
      Map<String, Object> query = {Queries.colLink: 'start_ongoing', Queries.colData: jsonEncode(queryBody)};

      print("adding new query ${query[Queries.colLink]} : ${jsonEncode(queryBody)}");

      await cacheDb.insert('Queries', query);
    } else {
      try {
        http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/start_ongoing.php'), body: queryBody));
        print("Query executed : Results{${queryResponse.body}");
        if (queryResponse.body.toLowerCase().contains("success")) {
          //Success
        }
      } catch (e) {
        print('NC: Error adding ongoing $e}');
      }
    }

    await executeQueries();
  }

  static Future<void> stopOngoing() async {
    Map<String, String> queryBody = <String, String>{
      'username': username,
    };

    if (cacheEnabled) {
      //Add Query
      Map<String, Object> query = {Queries.colLink: 'stop_ongoing', Queries.colData: jsonEncode(queryBody)};

      print("adding new query ${query[Queries.colLink]} : ${jsonEncode(queryBody)}");

      await cacheDb.insert('Queries', query);
    } else {
      try {
        http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/stop_ongoing.php'), body: queryBody));
        print("Query executed : Results{${queryResponse.body}");
        if (queryResponse.body.toLowerCase().contains("success")) {
          //Success
        }
      } catch (e) {
        print('NC: Error adding ongoing $e}');
      }
    }

    await executeQueries();
  }

  static Future<void> addProject(String name, String category, List<ProjectStep> steps, DateTime deadline) async {
    Map<String, String> queryBody = <String, String>{
      'name': username + name,
      'username': username,
      'device_id': await Settings.UUID(),
      'category_id': username + category,
      'steps': jsonEncode(steps),
      'deadline': DateFormat("yyyy-MM-dd").format(deadline)
    };

    if (cacheEnabled) {
      //Add Query
      Map<String, Object> query = {Queries.colLink: 'add_project', Queries.colData: jsonEncode(queryBody)};

      print("adding new query ${query[Queries.colLink]} : ${jsonEncode(queryBody)}");

      await cacheDb.insert('Queries', query);

      //update Cache
      Map<String, Object> data = {Project.colName: username+name, Project.colCat: category, Project.colSteps: jsonEncode(steps), Project.colDeadline: deadline.toString()};
      await cacheDb.insert('Projects', data);
      await refreshUserData(forceOffline: true);
    } else {
      try {
        http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/add_project.php'), body: queryBody));
        print("Query executed : Results{${queryResponse.body}");
        if (queryResponse.body.toLowerCase().contains("success")) {
          //Success
        }
      } catch (e) {
        print('NC: Error adding prjct $e}');
      }
    }

    await executeQueries();
  }

  static Future<void> deleteTask(String name, {bulk = false}) async {
    Map<String, String> queryBody = <String, String>{
      'id': username + name,
      'username': username,
      'device_id': await Settings.UUID(),
    };
    //Add Query
    Map<String, Object> query = {Queries.colLink: 'delete_taskType', Queries.colData: jsonEncode(queryBody)};

    print("adding new query ${query[Queries.colLink]} : ${jsonEncode(queryBody)}");
    if (cacheEnabled) {
      await cacheDb.insert('Queries', query);

      //update Cache
      Map<String, Object> data = {
        TaskType.colId: username + name,
        Category.colName: name,
      };
      await cacheDb.rawDelete("DELETE FROM TaskTypes WHERE id='${username + name}'");

      await refreshUserData(forceOffline: true);
      //Add to server and refresh Cache
    } else {
      try {
        http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/delete_taskType.php'), body: queryBody));
        print("Query executed : Results{${queryResponse.body}");
        if (queryResponse.body.toLowerCase().contains("success")) {
          //Success
        }
      } catch (e) {
        print('NC: Error editing acti $e}');
      }
    }
    if (!bulk) {
      await executeQueries();
    }
  }

  static Future<void> deleteCategory(String name, {bulk = false}) async {
    Map<String, String> queryBody = <String, String>{
      'id': username + name,
      'username': username,
      'device_id': await Settings.UUID(),
    };
    //Add Query
    Map<String, Object> query = {Queries.colLink: 'delete_category', Queries.colData: jsonEncode(queryBody)};

    print("adding new query ${query[Queries.colLink]} : ${jsonEncode(queryBody)}");
    if (cacheEnabled) {
      await cacheDb.insert('Queries', query);

      //update Cache
      Map<String, Object> data = {
        TaskType.colId: username + name,
        Category.colName: name,
      };
      await cacheDb.rawDelete("DELETE FROM Categories WHERE ${Category.colCatId}='${username + name}'");
      await refreshUserData(forceOffline: true);
      //Add to server and refresh Cache
    } else {
      try {
        http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/delete_category.php'), body: queryBody));
        print("Query executed : Results{${queryResponse.body}");
        if (queryResponse.body.toLowerCase().contains("success")) {
          //Success
        }
      } catch (e) {
        print('NC: Error editing acti $e}');
      }
    }
    if (!bulk) {
      await executeQueries();
    }
  }

  static Future<void> deleteActivity(Activity activity, {bulk = false}) async {
    Map<String, String> queryBody = <String, String>{
      'username': username,
      'device_id': await Settings.UUID(),
      'sTime': activity.trueStartTime.toString(),
      'eTime': activity.trueEndTime.toString(),
    };
    //Add Query
    Map<String, Object> query = {Queries.colLink: 'delete_activity', Queries.colData: jsonEncode(queryBody)};

    print("adding new query ${query[Queries.colLink]} : ${jsonEncode(queryBody)}");

    if (cacheEnabled) {
      await cacheDb.insert('Queries', query);

      //update Cache
      String deleteQuery =
          "DELETE FROM Activities WHERE ${Activity.colStartTime}=datetime('${dFormat.format(activity.trueStartTime)}') AND ${Activity.colEndTime}=datetime('${dFormat.format(activity.trueEndTime)}')";
      print("delteQuery : $deleteQuery");

      await cacheDb.rawDelete(deleteQuery);
      await refreshUserData(forceOffline: true);
      //Add to server and refresh Cache
    } else {
      try {
        http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/delete_activity.php'), body: queryBody));
        print("Query executed : Results{${queryResponse.body}");
        if (queryResponse.body.toLowerCase().contains("success")) {
          //Success
        }
      } catch (e) {
        print('NC: Error editing acti $e}');
      }
    }
    if (!bulk) {
      await executeQueries();
    }
  }

  static Future<void> executeQueries() async {
    if (cacheEnabled) {
      if (offline) {
        print("Cannot executre queries, Offline!");
        return;
      }
      List<Map<String, Object?>> queries = await cacheDb.query('Queries');

      for (Map<String, Object?> element in queries) {
        int id = int.parse(element['id'].toString());
        String? file = element[Queries.colLink].toString();
        String? data = element[Queries.colData].toString();
        if (file == null || data == null) {
          print("Null query, Ignoring...");
          continue;
        }
        print("Query[\n file:$file, \ndata:$data]");

        //Execute the http here
        Map<String, dynamic> body = jsonDecode(data);
        try {
          http.Response queryResponse = (await http.post(Uri.parse('http://161.97.127.136/task_tracker/$file.php'), body: body));
          print("Query executed : Results{${queryResponse.body}");
          if (queryResponse.body.toLowerCase().contains("success")) {
            await cacheDb.rawDelete('DELETE FROM Queries WHERE id=$id');
          }
          offline = false;
        } catch (e) {
          print("Error while query $e");
        }
      }
      //await refreshUserData();
    } else {
      await refreshUserData();
      print('Trying to execute queries in no cahce mode, We dont do that here');
    }
  }
}