import 'dart:convert';

import 'package:aitrainer_app/model/cache.dart';
import 'package:aitrainer_app/model/customer.dart';
import 'package:aitrainer_app/model/customer_exercise_device.dart';
import 'package:aitrainer_app/model/customer_property.dart';
import 'package:aitrainer_app/model/exercise.dart';
import 'package:aitrainer_app/model/exercise_device.dart';
import 'package:aitrainer_app/model/exercise_result.dart';
import 'package:aitrainer_app/model/exercise_tree.dart';
import 'package:aitrainer_app/model/exercise_tree_parents.dart';
import 'package:aitrainer_app/model/exercise_type.dart';
import 'package:aitrainer_app/model/product.dart';
import 'package:aitrainer_app/model/product_test.dart';
import 'package:aitrainer_app/model/property.dart';
import 'package:aitrainer_app/model/purchase.dart';
import 'package:aitrainer_app/service/api.dart';
import 'package:aitrainer_app/service/exercise_type_service.dart';
import 'package:aitrainer_app/util/not_found_exception.dart';

import 'customer_service.dart';
import 'exercise_tree_service.dart';

class PackageApi {
  final APIClient _client = new APIClient();

  Future<void> getPackage() async {
    List<ExerciseTree> exerciseTree;
    List<ExerciseTreeParents> exerciseTreeParents;
    final body = await _client.get("app_package/", "");

    final List<String> models = body.split("|||");
    await Future.forEach(models, (element) async {
      final List<String> headRecord = element.split("***");
      final Iterable json = jsonDecode(headRecord[1]);
      if (headRecord[0] == "ExerciseDevice") {
        final List<ExerciseDevice> devices = json.map((device) => ExerciseDevice.fromJson(device)).toList();
        Cache().setDevices(devices);
      } else if (headRecord[0] == "Product") {
        final List<Product> products = json.map((product) => Product.fromJson(product)).toList();
        Cache().setProducts(products);
      } else if (headRecord[0] == "Property") {
        final List<Property> properties = json.map((property) => Property.fromJson(property)).toList();
        Cache().setProperties(properties);
      } else if (headRecord[0] == "ExerciseTree") {
        exerciseTree = json.map((exerciseTree) => ExerciseTree.fromJson(exerciseTree)).toList();
      } else if (headRecord[0] == "ExerciseType") {
        final List<ExerciseType> exerciseTypes = json.map((exerciseType) => ExerciseType.fromJson(exerciseType)).toList();
        if (exerciseTypes != null) {
          await Future.forEach(exerciseTypes, (element) async {
            element.imageUrl = await ExerciseTypeApi().buildImage(element.imageUrl, element.exerciseTypeId);
          });
          Cache().setExerciseTypes(exerciseTypes);
        }
      } else if (headRecord[0] == "ExerciseAbility") {
      } else if (headRecord[0] == "ExerciseTreeParents") {
        exerciseTreeParents = json.map((exerciseTreeParent) => ExerciseTreeParents.fromJson(exerciseTreeParent)).toList();
      }
    });

    exerciseTree = this.getExerciseTreeParents(exerciseTree, exerciseTreeParents);
    if (exerciseTree != null) {
      await Future.forEach(exerciseTree, (element) async {
        element.imageUrl = await ExerciseTreeApi().buildImage(element.imageUrl, element.treeId);
      });
      Cache().setExerciseTree(exerciseTree);
    }

    return;
  }

  List<ExerciseTree> getExerciseTreeParents(final List<ExerciseTree> exerciseTree, final List<ExerciseTreeParents> exerciseTreeParents) {
    List<ExerciseTree> copyList = ExerciseTreeApi().copyList(exerciseTree);

    int treeIndex = 0;
    copyList.forEach((element) async {
      int index = 0;
      exerciseTreeParents.forEach((parent) {
        if (parent.exerciseTreeChildId == element.treeId) {
          if (index > 0) {
            ExerciseTree newElement = element.copy(parent.exerciseTreeParentId);
            exerciseTree.add(newElement);
          } else {
            element.parentId = parent.exerciseTreeParentId;
            exerciseTree[treeIndex].parentId = parent.exerciseTreeParentId;
          }
          index++;
        }
      });

      treeIndex++;
    });

    return exerciseTree;
  }

  Future<void> getCustomerPackage(int customerId) async {
    try {
      final body = await _client.get("app_customer_package/" + customerId.toString(), "");

      final List<String> models = body.split("|||");
      await Future.forEach(models, (element) async {
        final List<String> headRecord = element.split("***");
        //print("Class " + headRecord[0]);
        if (headRecord[0] == "Customer") {
          Customer customer = Customer.fromJson(jsonDecode(headRecord[1]));
          Cache().userLoggedIn = customer;
        } else if (headRecord[0] == "CustomerExerciseDevice") {
          final Iterable json = jsonDecode(headRecord[1]);
          final List<CustomerExerciseDevice> devices = json.map((device) => CustomerExerciseDevice.fromJson(device)).toList();
          Cache().setCustomerDevices(devices);
          // ToDo
        } else if (headRecord[0] == "Exercises") {
          final Iterable json = jsonDecode(headRecord[1]);
          final List<Exercise> exercises = json.map((exerciseType) => Exercise.fromJson(exerciseType)).toList();
          Cache().setExercises(exercises);
        } else if (headRecord[0] == "ProductTest") {
          final Iterable json = jsonDecode(headRecord[1]);
          final List<ProductTest> productTests = json.map((productTest) => ProductTest.fromJson(productTest)).toList();
          Cache().productTests = productTests;
        } else if (headRecord[0] == "Purchase") {
          final Iterable json = jsonDecode(headRecord[1]);
          final List<Purchase> purchases = json.map((purchase) => Purchase.fromJson(purchase)).toList();
          Cache().setPurchases(purchases);
        } else if (headRecord[0] == "CustomerProperty") {
          final Iterable json = jsonDecode(headRecord[1]);
          final List<CustomerProperty> customerProperties = json.map((property) => CustomerProperty.fromJson(property)).toList();
          CustomerApi().initProperties(customerProperties);
        } else if (headRecord[0] == "ExerciseResult") {
          final Iterable json = jsonDecode(headRecord[1]);
          final List<ExerciseResult> exerciseResults = json.map((exerciseResult) {
            ExerciseResult item = ExerciseResult.fromJson(exerciseResult);
            return item;
          }).toList();
          // ToDo
        }
      });
    } on NotFoundException catch (_) {
      throw Exception("Please log in");
    }
  }
}