import 'package:flutter_test/flutter_test.dart';
import 'package:tm_app/data/services/model/address/address.dart';
import 'package:tm_app/data/services/model/contact_person/contact_person.dart';
import 'package:tm_app/data/services/model/customer/customer.dart';

void main() {
  group('Customer Model Tests', () {
    test('fromJson should parse JSON correctly', () {
      final json = {
        'id': '123',
        'type': 'business',
        'status': 'active',
        'first_name': 'John',
        'last_name': 'Doe',
        'full_name': 'John Doe',
        'email': 'john@example.com',
        'phone': '021234567',
        'mobile': '09123456789',
        'registration_number': 'REG123',
        'tax_id': 'TAX001',
        'industry': 'Software',
        'business_type': 'Tech',
        'employee_count': 50,
        'annual_revenue': 1000000,
        'founded_year': 2015,
        'is_verified': true,
        'is_compliant': false,
        'compliance_notes': 'Pending documents',
        'language': 'en',
        'username': 'john_doe',
        'currency': 'USD',
        'timezone': 'UTC+3',
        'created_at': 1700000000,
        'updated_at': 1750000000,
        'created_by': 'admin',
        'updated_by': 'manager',
        'address': {
          'street': '123 Main St',
          'city': 'Tehran',
          'state': 'Tehran',
          'postal_code': '12345',
          'country': 'Iran',
          'address_type': 'business',
          'is_default': true,
        },
        'contactPersons': {
          'first_name': 'Ali',
          'last_name': 'Ahmadi',
          'full_name': 'Ali Ahmadi',
          'email': 'ali@example.com',
          'phone': '09121234567',
          'mobile': '09121234567',
          'position': 'Manager',
          'is_primary': true,
        },
      };

      final customer = Customer.fromJson(json);

      expect(customer.id, '123');
      expect(customer.firstName, 'John');
      expect(customer.lastName, 'Doe');
      expect(customer.isVerified, true);
      expect(customer.isCompliant, false);
      expect(customer.address?.city, 'Tehran');
      expect(customer.contactPersons?.firstName, 'Ali');
      expect(customer.contactPersons?.isPrimary, true);
    });

    test('toJson should return valid JSON map', () {
      final address = const Address(
        street: 'Main St',
        city: 'Tehran',
        state: 'Tehran',
        postalCode: '12345',
        country: 'Iran',
        addressType: 'business',
        isDefault: true,
      );

      final contact = const ContactPerson(
        firstName: 'Ali',
        lastName: 'Doe',
        fullName: 'Ali Doe',
        position: 'Manager',
        email: 'ali@example.com',
        phone: '09121234567',
        mobile: '09121234567',
        isPrimary: true,
      );

      final customer = Customer(
        id: '999',
        type: 'business',
        status: 'pending',
        firstName: 'Sara',
        lastName: 'Smith',
        fullName: 'Sara Smith',
        email: 'sara@example.com',
        phone: '021111111',
        mobile: '0912000000',
        registrationNumber: 'R999',
        taxId: 'T999',
        industry: 'Finance',
        businessType: 'Corporate',
        employeeCount: 200,
        annualRevenue: 5000000,
        foundedYear: 2010,
        isVerified: false,
        isCompliant: true,
        complianceNotes: 'Verified',
        language: 'fa',
        username: 'sara_smith',
        currency: 'IRR',
        timezone: 'Asia/Tehran',
        createdAt: 1700000000,
        updatedAt: 1750000000,
        createdBy: 'system',
        updatedBy: 'admin',
        address: address,
        contactPersons: contact,
      );

      final json = customer.toJson();

      expect(json['id'], '999');
      expect(json['first_name'], 'Sara');
      expect(json['registration_number'], 'R999');
      expect(json['address'], isNotNull);
      expect((json['address'] as Address).toJson()['city'], 'Tehran');
      // Todo: Check the bottom line
      //  expect((json['contact_persons'] as ContactPerson).toJson()['first_name'],'Ali',);
    });

    test('copyWith should modify specific fields only', () {
      final customer = const Customer(
        id: '123',
        type: 'business',
        status: 'active',
        firstName: 'John',
        lastName: 'Doe',
        fullName: 'John Doe',
        email: 'john@example.com',
        phone: '021234567',
        mobile: '09123456789',
        registrationNumber: 'REG123',
        taxId: 'TAX001',
        industry: 'Software',
        businessType: 'Tech',
        employeeCount: 50,
        annualRevenue: 1000000,
        foundedYear: 2015,
        isVerified: true,
        isCompliant: true,
        complianceNotes: 'OK',
        language: 'en',
        username: 'john_doe',
        currency: 'USD',
        timezone: 'UTC+3',
        createdAt: 1700000000,
        updatedAt: 1750000000,
        createdBy: 'admin',
        updatedBy: 'manager',
        address: Address(
          street: '123 Main St',
          city: 'Tehran',
          state: 'Tehran',
          postalCode: '12345',
          country: 'Iran',
          addressType: 'business',
          isDefault: true,
        ),
        contactPersons: ContactPerson(
          firstName: 'Ali',
          lastName: 'Doe',
          fullName: 'Ali n',
          position: 'Manager',
          email: 'ali@example.com',
          phone: '09121234567',
          mobile: '09121234567',
          isPrimary: true,
        ),
      );

      final updated = customer.copyWith(
        firstName: 'NewName',
        isVerified: false,
      );

      expect(updated.firstName, 'NewName');
      expect(updated.isVerified, false);
      expect(updated.id, '123');
    });

    test('fromJson handles null fields safely', () {
      final json = {'id': null, 'first_name': null, 'is_verified': null};

      final customer = Customer.fromJson(json);

      expect(customer.id, isNull);
      expect(customer.firstName, isNull);
      expect(customer.isVerified, isNull);
    });

    test('fromJson -> toJson round-trip should preserve data', () {
      final json = {
        'id': 'A1',
        'first_name': 'Ali',
        'last_name': 'Rezaei',
        'is_verified': true,
        'address': {'city': 'Tehran'},
        'contactPersons': {'first_name': 'Sara', 'is_primary': true},
      };

      final customer = Customer.fromJson(json);
      final output = customer.toJson();

      expect(output['id'], 'A1');
      expect(output['first_name'], 'Ali');
      expect(output['is_verified'], true);
      final addressJson = (output['address'] as Address).toJson();
      final contactJson = (output['contactPersons'] as ContactPerson).toJson();

      expect(addressJson['city'], 'Tehran');
      expect(contactJson['first_name'], 'Sara');
    });
  });
}