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"""
Comprehensive tests for the DevOps Toolkit API.
"""

import pytest
from fastapi.testclient import TestClient

from app.main import app


@pytest.fixture
def client():
    """Test client fixture."""
    return TestClient(app)


class TestRootEndpoint:
    """Test cases for the root endpoint."""

    def test_root_endpoint(self, client):
        """Test the root endpoint returns correct information."""
        response = client.get("/")
        assert response.status_code == 200
        data = response.json()
        assert "message" in data
        assert "version" in data
        assert "docs" in data
        assert "redoc" in data
        assert data["message"] == "DeployMate API"
        assert data["version"] == "1.0.0"


class TestScriptGeneration:
    """Test cases for script generation endpoint."""

    def test_generate_python_script(self, client):
        """Test generating a Python stack script."""
        config = {
            "stackType": "python",
            "webServer": "nginx",
            "database": "postgresql",
            "dbName": "testdb",
            "dbUsername": "testuser",
            "dbPassword": "testpassword123",
            "domain": "example.com",
            "ssl": False,
            "sslEmail": "",
            "runtime": "3.11",
            "processManager": "systemd",
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 200
        data = response.json()
        assert "script_path" in data
        assert "script_url" in data
        assert "description" in data
        assert "nginx_config_path" in data
        assert "nginx_url" in data
        assert "python" in data["description"].lower()
        assert "nginx" in data["description"].lower()

    def test_generate_nodejs_script(self, client):
        """Test generating a Node.js stack script."""
        config = {
            "stackType": "nodejs",
            "webServer": "nginx",
            "database": "mongodb",
            "dbName": "testdb",
            "dbUsername": "testuser",
            "dbPassword": "testpassword123",
            "domain": "example.com",
            "ssl": True,
            "sslEmail": "test@example.com",
            "runtime": "20",
            "processManager": "pm2",
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 200
        data = response.json()
        assert "script_path" in data
        assert "script_url" in data
        assert "nodejs" in data["description"].lower()

    def test_generate_react_script(self, client):
        """Test generating a React static site script."""
        config = {
            "stackType": "react",
            "webServer": "nginx",
            "database": "none",
            "domain": "example.com",
            "ssl": False,
            "processManager": "none",
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 200
        data = response.json()
        assert "script_path" in data
        assert "script_url" in data
        assert "react" in data["description"].lower()

    def test_generate_script_without_webserver(self, client):
        """Test generating a script without web server."""
        config = {
            "stackType": "python",
            "webServer": "none",
            "database": "none",
            "runtime": "3.11",
            "processManager": "none",
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 200
        data = response.json()
        assert "script_path" in data
        assert "script_url" in data
        # Should not have nginx config when no web server
        assert data["nginx_config_path"] is None or data["nginx_config_path"] == ""
        assert data["nginx_url"] is None or data["nginx_url"] == ""

    def test_generate_script_validation_error(self, client):
        """Test script generation with invalid data."""
        # Invalid stack type
        config = {
            "stackType": "invalid_stack",
            "webServer": "nginx",
            "database": "postgresql",
            "dbName": "testdb",
            "dbUsername": "testuser",
            "dbPassword": "testpassword123",
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 422  # Validation error

    def test_generate_script_missing_required_fields(self, client):
        """Test script generation with missing required fields."""
        config = {
            "webServer": "nginx",
            "database": "postgresql",
            # Missing stackType
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 422  # Validation error


class TestNginxGeneration:
    """Test cases for nginx configuration generation."""

    def test_generate_nginx_python(self, client):
        """Test nginx config generation for Python."""
        config = {
            "stackType": "python",
            "webServer": "nginx",
            "database": "",
            "dbName": "",
            "dbUsername": "",
            "dbPassword": "",
            "domain": "example.com",
            "ssl": False,
            "sslEmail": "",
            "runtime": "",
            "processManager": "",
            "security": {
                "ufw": False,
                "fail2ban": False,
                "disableRoot": False,
                "autoUpdates": False,
            },
            "advanced": {
                "swap": False,
                "swapSize": "",
                "sshKey": "",
                "backups": False,
                "monitoring": False,
            },
        }

        response = client.post("/api/v1/generate-nginx-config", json=config)
        assert response.status_code == 200
        data = response.json()
        assert "nginx_config_path" in data
        assert "nginx_url" in data
        assert "description" in data
        assert "python" in data["description"].lower()

    def test_generate_nginx_nodejs(self, client):
        """Test nginx config generation for Node.js."""
        config = {
            "stackType": "nodejs",
            "webServer": "nginx",
            "database": "",
            "dbName": "",
            "dbUsername": "",
            "dbPassword": "",
            "domain": "example.com",
            "ssl": True,
            "sslEmail": "test@example.com",
            "runtime": "",
            "processManager": "",
            "security": {
                "ufw": False,
                "fail2ban": False,
                "disableRoot": False,
                "autoUpdates": False,
            },
            "advanced": {
                "swap": False,
                "swapSize": "",
                "sshKey": "",
                "backups": False,
                "monitoring": False,
            },
        }

        response = client.post("/api/v1/generate-nginx-config", json=config)
        assert response.status_code == 200
        data = response.json()
        assert "nginx_config_path" in data
        assert "nginx_url" in data
        assert "nodejs" in data["description"].lower()

    def test_generate_nginx_react(self, client):
        """Test nginx config generation for React."""
        config = {
            "stackType": "react",
            "webServer": "nginx",
            "database": "",
            "dbName": "",
            "dbUsername": "",
            "dbPassword": "",
            "domain": "example.com",
            "ssl": False,
            "sslEmail": "",
            "runtime": "",
            "processManager": "",
            "security": {
                "ufw": False,
                "fail2ban": False,
                "disableRoot": False,
                "autoUpdates": False,
            },
            "advanced": {
                "swap": False,
                "swapSize": "",
                "sshKey": "",
                "backups": False,
                "monitoring": False,
            },
        }

        response = client.post("/api/v1/generate-nginx-config", json=config)
        assert response.status_code == 200
        data = response.json()
        assert "nginx_config_path" in data
        assert "nginx_url" in data

    def test_generate_nginx_validation_error(self, client):
        """Test nginx config generation with invalid data."""
        config = {"stackType": "invalid_stack", "domain": "example.com"}

        response = client.post("/api/v1/generate-nginx-config", json=config)
        assert response.status_code == 422  # Validation error


class TestFileDownload:
    """Test cases for file download endpoint."""

    def test_download_script_creates_file(self, client):
        """Test that script generation creates a downloadable file."""
        # First generate a script
        config = {
            "stackType": "python",
            "webServer": "nginx",
            "database": "postgresql",
            "dbName": "testdb",
            "dbUsername": "testuser",
            "dbPassword": "testpassword123",
            "domain": "example.com",
            "ssl": False,
            "runtime": "3.11",
            "processManager": "systemd",
        }

        gen_response = client.post("/api/v1/generate-script", json=config)
        assert gen_response.status_code == 200
        gen_data = gen_response.json()

        # Check that the response contains file URLs
        assert "script_url" in gen_data
        assert "nginx_url" in gen_data
        assert gen_data["script_url"].startswith("/download/")
        assert gen_data["nginx_url"].startswith("/download/")

        # Extract filename from URL
        script_filename = gen_data["script_url"].split("/")[-1]
        nginx_filename = gen_data["nginx_url"].split("/")[-1]

        # Check that files exist (without actually downloading them
        # due to test client issues)
        from app.core.config import settings

        script_path = settings.generated_dir / script_filename
        nginx_path = settings.generated_dir / nginx_filename

        assert script_path.exists(), f"Script file {script_filename} was not created"
        assert nginx_path.exists(), f"Nginx file {nginx_filename} was not created"


class TestValidation:
    """Test cases for input validation."""

    def test_invalid_domain_format(self, client):
        """Test validation of domain format."""
        config = {
            "stackType": "python",
            "webServer": "nginx",
            "database": "postgresql",
            "dbName": "testdb",
            "dbUsername": "testuser",
            "dbPassword": "testpassword123",
            "domain": "invalid-domain",  # Invalid domain format
            "ssl": False,
            "runtime": "3.11",
            "processManager": "systemd",
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 422

    def test_weak_database_password(self, client):
        """Test validation of database password strength."""
        config = {
            "stackType": "python",
            "webServer": "nginx",
            "database": "postgresql",
            "dbName": "testdb",
            "dbUsername": "testuser",
            "dbPassword": "123",  # Too short
            "domain": "example.com",
            "ssl": False,
            "runtime": "3.11",
            "processManager": "systemd",
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 422

    def test_invalid_web_server(self, client):
        """Test validation of web server type."""
        config = {
            "stackType": "python",
            "webServer": "invalid_server",
            "database": "postgresql",
            "dbName": "testdb",
            "dbUsername": "testuser",
            "dbPassword": "testpassword123",
            "domain": "example.com",
            "ssl": False,
            "runtime": "3.11",
            "processManager": "systemd",
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 422

    def test_invalid_database_type(self, client):
        """Test validation of database type."""
        config = {
            "stackType": "python",
            "webServer": "nginx",
            "database": "invalid_db",
            "dbName": "testdb",
            "dbUsername": "testuser",
            "dbPassword": "testpassword123",
            "domain": "example.com",
            "ssl": False,
            "runtime": "3.11",
            "processManager": "systemd",
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 422


class TestEdgeCases:
    """Test cases for edge cases and error handling."""

    def test_generate_script_with_all_features(self, client):
        """Test script generation with all security and advanced features enabled."""
        config = {
            "stackType": "python",
            "webServer": "nginx",
            "database": "postgresql",
            "dbName": "testdb",
            "dbUsername": "testuser",
            "dbPassword": "testpassword123",
            "domain": "example.com",
            "ssl": True,
            "sslEmail": "test@example.com",
            "runtime": "3.11",
            "processManager": "systemd",
            "security": {
                "ufw": True,
                "fail2ban": True,
                "disableRoot": True,
                "autoUpdates": True,
            },
            "advanced": {
                "swap": True,
                "swapSize": "4G",
                "sshKey": "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQ...",
                "backups": True,
                "monitoring": True,
            },
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 200
        data = response.json()
        assert "script_path" in data
        assert "script_url" in data

    def test_generate_script_minimal_config(self, client):
        """Test script generation with minimal required configuration."""
        config = {
            "stackType": "python",
            "webServer": "none",
            "database": "none",
            "processManager": "none",
        }

        response = client.post("/api/v1/generate-script", json=config)
        assert response.status_code == 200
        data = response.json()
        assert "script_path" in data
        assert "script_url" in data