"""
Integration test for tenant registration flow.
This test MUST fail before implementation.
"""

import pytest
from django.test import TestCase
from django.urls import reverse
from rest_framework.test import APIClient
from rest_framework import status
import json


class TenantRegistrationIntegrationTest(TestCase):
    def setUp(self):
        self.client = APIClient()

        # Super admin authentication header
        self.admin_auth = {'HTTP_AUTHORIZATION': 'Bearer super_admin_token'}

        # Test tenant data
        self.tenant_data = {
            'name': 'Test Healthcare Sdn Bhd',
            'email': 'info@testhealthcare.com',
            'phone': '+60312345678',
            'address': {
                'street': '123 Medical Street',
                'city': 'Kuala Lumpur',
                'state': 'Wilayah Persekutuan',
                'postal_code': '50400',
                'country': 'Malaysia'
            },
            'business_type': 'HEALTHCARE',
            'subscription_plan': 'GROWTH',
            'pricing_model': 'SUBSCRIPTION',
            'admin_user': {
                'name': 'Dr. Sarah Johnson',
                'email': 'sarah.johnson@testhealthcare.com',
                'password': 'SecurePassword123!',
                'role': 'TENANT_ADMIN',
                'phone': '+60123456789'
            }
        }

    def test_complete_tenant_registration_flow(self):
        """Test complete tenant registration from creation to admin setup."""
        # Step 1: Create tenant (should fail before implementation)
        tenant_response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(self.tenant_data),
            content_type='application/json',
            **self.admin_auth
        )

        assert tenant_response.status_code == status.HTTP_201_CREATED
        tenant_data = tenant_response.json()

        # Verify tenant structure
        assert 'id' in tenant_data
        assert tenant_data['name'] == self.tenant_data['name']
        assert tenant_data['email'] == self.tenant_data['email']
        assert tenant_data['business_type'] == self.tenant_data['business_type']
        assert tenant_data['status'] == 'PENDING'

        # Step 2: Verify tenant admin user was created
        # First, authenticate as super admin to get user list
        users_response = self.client.get(
            '/api/v1/users/',
            **self.admin_auth
        )

        assert users_response.status_code == status.HTTP_200_OK
        users_data = users_response.json()

        # Find the newly created admin user
        admin_user = None
        for user in users_data['users']:
            if user['email'] == self.tenant_data['admin_user']['email']:
                admin_user = user
                break

        assert admin_user is not None
        assert admin_user['name'] == self.tenant_data['admin_user']['name']
        assert admin_user['role'] == 'TENANT_ADMIN'
        assert admin_user['tenant_id'] == tenant_data['id']

        # Step 3: Verify subscription was created for tenant
        subscription_response = self.client.get(
            '/api/v1/subscriptions/',
            data={'tenant_id': tenant_data['id']},
            **self.admin_auth
        )

        assert subscription_response.status_code == status.HTTP_200_OK
        subscriptions_data = subscription_response.json()

        assert len(subscriptions_data['subscriptions']) == 1
        subscription = subscriptions_data['subscriptions'][0]
        assert subscription['tenant_id'] == tenant_data['id']
        assert subscription['plan'] == self.tenant_data['subscription_plan']
        assert subscription['status'] == 'TRIAL'

        # Step 4: Test tenant admin authentication
        # Login as tenant admin
        login_data = {
            'email': self.tenant_data['admin_user']['email'],
            'password': self.tenant_data['admin_user']['password']
        }

        auth_response = self.client.post(
            '/api/v1/auth/login/',
            data=json.dumps(login_data),
            content_type='application/json'
        )

        assert auth_response.status_code == status.HTTP_200_OK
        auth_data = auth_response.json()

        assert 'access_token' in auth_data
        assert 'refresh_token' in auth_data
        assert 'user' in auth_data

        # Verify user info in token
        user_info = auth_data['user']
        assert user_info['email'] == self.tenant_data['admin_user']['email']
        assert user_info['tenant_id'] == tenant_data['id']

        # Step 5: Test tenant admin can access their tenant data
        tenant_admin_auth = {'HTTP_AUTHORIZATION': f'Bearer {auth_data["access_token"]}'}

        tenant_own_response = self.client.get(
            '/api/v1/tenants/',
            **tenant_admin_auth
        )

        assert tenant_own_response.status_code == status.HTTP_200_OK
        tenant_own_data = tenant_own_response.json()

        # Should only see their own tenant
        assert len(tenant_own_data['tenants']) == 1
        assert tenant_own_data['tenants'][0]['id'] == tenant_data['id']

        # Step 6: Test tenant isolation - cannot see other tenants
        # Create another tenant as super admin
        other_tenant_data = self.tenant_data.copy()
        other_tenant_data['name'] = 'Other Healthcare Sdn Bhd'
        other_tenant_data['email'] = 'info@otherhealthcare.com'
        other_tenant_data['admin_user']['email'] = 'admin@otherhealthcare.com'

        other_tenant_response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(other_tenant_data),
            content_type='application/json',
            **self.admin_auth
        )

        assert other_tenant_response.status_code == status.HTTP_201_CREATED

        # First tenant admin should still only see their own tenant
        tenant_still_own_response = self.client.get(
            '/api/v1/tenants/',
            **tenant_admin_auth
        )

        assert tenant_still_own_response.status_code == status.HTTP_200_OK
        tenant_still_own_data = tenant_still_own_response.json()

        # Should still only see their own tenant
        assert len(tenant_still_own_data['tenants']) == 1
        assert tenant_still_own_data['tenants'][0]['id'] == tenant_data['id']

    def test_tenant_registration_invalid_business_type(self):
        """Test tenant registration with invalid business type."""
        invalid_data = self.tenant_data.copy()
        invalid_data['business_type'] = 'INVALID_TYPE'

        response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(invalid_data),
            content_type='application/json',
            **self.admin_auth
        )

        assert response.status_code == status.HTTP_400_BAD_REQUEST

    def test_tenant_registration_missing_admin_user(self):
        """Test tenant registration without admin user data."""
        invalid_data = self.tenant_data.copy()
        del invalid_data['admin_user']

        response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(invalid_data),
            content_type='application/json',
            **self.admin_auth
        )

        assert response.status_code == status.HTTP_400_BAD_REQUEST

    def test_tenant_registration_duplicate_email(self):
        """Test tenant registration with duplicate email."""
        # Create first tenant
        first_response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(self.tenant_data),
            content_type='application/json',
            **self.admin_auth
        )

        assert first_response.status_code == status.HTTP_201_CREATED

        # Try to create second tenant with same email
        second_response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(self.tenant_data),
            content_type='application/json',
            **self.admin_auth
        )

        assert second_response.status_code == status.HTTP_400_BAD_REQUEST

    def test_tenant_registration_unauthorized(self):
        """Test tenant registration without admin authentication."""
        response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(self.tenant_data),
            content_type='application/json'
        )

        assert response.status_code == status.HTTP_401_UNAUTHORIZED

    def test_tenant_registration_weak_admin_password(self):
        """Test tenant registration with weak admin password."""
        invalid_data = self.tenant_data.copy()
        invalid_data['admin_user']['password'] = '123'

        response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(invalid_data),
            content_type='application/json',
            **self.admin_auth
        )

        assert response.status_code == status.HTTP_400_BAD_REQUEST

    def test_tenant_registration_with_modules_configuration(self):
        """Test tenant registration with specific modules configuration."""
        modules_data = self.tenant_data.copy()
        modules_data['modules'] = ['healthcare', 'appointments', 'billing']
        modules_data['modules_config'] = {
            'healthcare': {
                'features': ['patient_management', 'appointment_scheduling', 'medical_records'],
                'settings': {
                    'enable_telemedicine': True,
                    'appointment_reminders': True
                }
            }
        }

        response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(modules_data),
            content_type='application/json',
            **self.admin_auth
        )

        if response.status_code == status.HTTP_201_CREATED:
            tenant_data = response.json()
            # Should have modules configuration
            assert 'modules' in tenant_data
            assert 'modules_config' in tenant_data

    def test_tenant_registration_with_branding(self):
        """Test tenant registration with branding information."""
        branding_data = self.tenant_data.copy()
        branding_data['branding'] = {
            'logo_url': 'https://example.com/logo.png',
            'primary_color': '#2563eb',
            'secondary_color': '#64748b',
            'company_website': 'https://testhealthcare.com',
            'social_media': {
                'facebook': 'testhealthcare',
                'instagram': 'testhealthcare_my'
            }
        }

        response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(branding_data),
            content_type='application/json',
            **self.admin_auth
        )

        if response.status_code == status.HTTP_201_CREATED:
            tenant_data = response.json()
            # Should have branding information
            assert 'branding' in tenant_data
            assert tenant_data['branding']['primary_color'] == '#2563eb'

    def test_tenant_registration_domain_setup(self):
        """Test tenant registration with custom domain setup."""
        domain_data = self.tenant_data.copy()
        domain_data['domain'] = 'portal.testhealthcare.com'
        domain_data['settings'] = {
            'custom_domain_enabled': True,
            'ssl_enabled': True,
            'email_domain': 'testhealthcare.com'
        }

        response = self.client.post(
            '/api/v1/tenants/',
            data=json.dumps(domain_data),
            content_type='application/json',
            **self.admin_auth
        )

        if response.status_code == status.HTTP_201_CREATED:
            tenant_data = response.json()
            # Should have domain configuration
            assert 'domain' in tenant_data
            assert 'settings' in tenant_data
            assert tenant_data['domain'] == 'portal.testhealthcare.com'