import 'package:please_pay_me/data/api/api_client.dart';
import 'package:please_pay_me/data/models/auth_user.dart';
import 'package:please_pay_me/data/models/budget.dart';
import 'package:please_pay_me/data/models/expense.dart';
import 'package:please_pay_me/data/models/job.dart';
import 'package:please_pay_me/data/models/json.dart';
import 'package:please_pay_me/data/repositories/repositories.dart';

class ApiBudgetRepository implements BudgetRepository {
  const ApiBudgetRepository(this._client);

  final ApiClient _client;

  @override
  Future<List<BudgetStatus>> list() async {
    final json = await _client.getJson('/api/me/budgets');
    return BudgetsList.fromJson(json).items;
  }

  @override
  Future<BudgetStatus> status({int? budgetId}) async {
    final json = await _client.getJson(
      '/api/me/budget',
      query: {if (budgetId != null) 'budget_id': '$budgetId'},
    );
    return BudgetStatus.fromJson(json);
  }

  @override
  Future<BudgetStatus> create({
    required String name,
    required double totalAmount,
    required DateTime endDate,
    DateTime? startDate,
  }) async {
    final json = await _client.postJson('/api/me/budgets', body: {
      'name': name,
      'total_amount': totalAmount,
      'end_date': formatIsoDate(endDate),
      'start_date': startDate == null ? null : formatIsoDate(startDate),
      'is_active': true,
      'select': true,
    });
    return BudgetStatus.fromJson(json);
  }

  @override
  Future<BudgetStatus> update({
    required int budgetId,
    String? name,
    double? totalAmount,
    DateTime? endDate,
    DateTime? startDate,
    bool resetExpenses = false,
  }) async {
    final json = await _client.putJson('/api/me/budgets/$budgetId', body: {
      if (name != null) 'name': name,
      if (totalAmount != null) 'total_amount': totalAmount,
      if (endDate != null) 'end_date': formatIsoDate(endDate),
      if (startDate != null) 'start_date': formatIsoDate(startDate),
      'reset_expenses': resetExpenses,
    });
    return BudgetStatus.fromJson(json);
  }

  @override
  Future<BudgetStatus> select(int budgetId) async {
    final json = await _client.postJson('/api/me/budgets/$budgetId/select');
    return BudgetStatus.fromJson(json);
  }

  @override
  Future<BudgetStatus> setActive(int budgetId, {required bool isActive}) async {
    final json = await _client.patchJson(
      '/api/me/budgets/$budgetId/active',
      body: {'is_active': isActive},
    );
    return BudgetStatus.fromJson(json);
  }

  @override
  Future<void> delete(int budgetId) => _client.deleteJson('/api/me/budgets/$budgetId');
}

class ApiExpenseRepository implements ExpenseRepository {
  const ApiExpenseRepository(this._client);

  final ApiClient _client;

  @override
  Future<ExpensesPage> page({
    required int page,
    int pageSize = 20,
    int? budgetId,
    bool all = false,
  }) async {
    final json = await _client.getJson('/api/me/expenses', query: {
      'page': '$page',
      'page_size': '$pageSize',
      if (all) 'all': 'true' else if (budgetId != null) 'budget_id': '$budgetId',
    });
    return ExpensesPage.fromJson(json);
  }

  @override
  Future<BudgetStatus> create({
    required double amount,
    String? note,
    DateTime? spentAt,
    int? budgetId,
  }) async {
    final json = await _client.postJson('/api/me/expenses', body: {
      'amount': amount,
      'note': note,
      'spent_at': spentAt == null ? null : formatIsoDate(spentAt),
      'budget_id': budgetId,
    });
    return BudgetStatus.fromJson(json);
  }

  @override
  Future<double> undoLast({int? budgetId}) async {
    final json = await _client.deleteJson(
      '/api/me/expenses/last',
      query: {if (budgetId != null) 'budget_id': '$budgetId'},
    );
    return asDouble(json['deleted_amount']);
  }
}

class ApiJobRepository implements JobRepository {
  const ApiJobRepository(this._client);

  final ApiClient _client;

  @override
  Future<List<Job>> list() async {
    final json = await _client.getJson('/api/me/jobs');
    return JobsList.fromJson(json).items;
  }

  @override
  Future<Job> create({
    required String name,
    required double salaryAmount,
    required List<int> payDays,
    required double firstPayPercent,
    required WeekendPolicy weekendPolicy,
  }) async {
    final json = await _client.postJson('/api/me/jobs', body: {
      'name': name,
      'salary_amount': salaryAmount,
      'pay_days': payDays,
      'first_pay_percent': firstPayPercent,
      'weekend_policy': weekendPolicy.wire,
      'is_active': true,
    });
    return Job.fromJson(json);
  }

  @override
  Future<Job> update({
    required int jobId,
    required String name,
    required double salaryAmount,
    required List<int> payDays,
    required double firstPayPercent,
    required WeekendPolicy weekendPolicy,
    bool isActive = true,
  }) async {
    final json = await _client.putJson('/api/me/jobs/$jobId', body: {
      'name': name,
      'salary_amount': salaryAmount,
      'pay_days': payDays,
      'first_pay_percent': firstPayPercent,
      'weekend_policy': weekendPolicy.wire,
      'is_active': isActive,
    });
    return Job.fromJson(json);
  }

  @override
  Future<void> delete(int jobId) => _client.deleteJson('/api/me/jobs/$jobId');
}

class ApiUserRepository implements UserRepository {
  const ApiUserRepository(this._client);

  final ApiClient _client;

  @override
  Future<AuthUser> me() async => AuthUser.fromJson(await _client.getJson('/api/me'));
}