use sal_service_manager::{
    ServiceConfig, ServiceManager, ServiceManagerError, ServiceStatus, ZinitServiceManager,
};
use std::collections::HashMap;
use std::time::Duration;
use tokio::time::sleep;

/// Helper function to find an available Zinit socket path
async fn get_available_socket_path() -> Option<String> {
    let socket_paths = [
        "/var/run/zinit.sock",
        "/tmp/zinit.sock",
        "/run/zinit.sock",
        "./zinit.sock",
    ];

    for path in &socket_paths {
        // Try to create a ZinitServiceManager to test connectivity
        if let Ok(manager) = ZinitServiceManager::new(path) {
            // Test if we can list services (basic connectivity test)
            if manager.list().is_ok() {
                println!("✓ Found working Zinit socket at: {}", path);
                return Some(path.to_string());
            }
        }
    }

    None
}

/// Helper function to clean up test services
async fn cleanup_test_service(manager: &dyn ServiceManager, service_name: &str) {
    let _ = manager.stop(service_name);
    let _ = manager.remove(service_name);
}

#[tokio::test]
async fn test_zinit_service_manager_creation() {
    if let Some(socket_path) = get_available_socket_path().await {
        let manager = ZinitServiceManager::new(&socket_path);
        assert!(
            manager.is_ok(),
            "Should be able to create ZinitServiceManager"
        );

        let manager = manager.unwrap();

        // Test basic connectivity by listing services
        let list_result = manager.list();
        assert!(list_result.is_ok(), "Should be able to list services");

        println!("✓ ZinitServiceManager created successfully");
    } else {
        println!("⚠ Skipping test_zinit_service_manager_creation: No Zinit socket available");
    }
}

#[tokio::test]
async fn test_service_lifecycle() {
    if let Some(socket_path) = get_available_socket_path().await {
        let manager = ZinitServiceManager::new(&socket_path).expect("Failed to create manager");
        let service_name = "test-lifecycle-service";

        // Clean up any existing service first
        cleanup_test_service(&manager, service_name).await;

        let config = ServiceConfig {
            name: service_name.to_string(),
            binary_path: "echo".to_string(),
            args: vec!["Hello from lifecycle test".to_string()],
            working_directory: Some("/tmp".to_string()),
            environment: HashMap::new(),
            auto_restart: false,
        };

        // Test service creation and start
        println!("Testing service creation and start...");
        let start_result = manager.start(&config);
        match start_result {
            Ok(_) => {
                println!("✓ Service started successfully");

                // Wait a bit for the service to run
                sleep(Duration::from_millis(500)).await;

                // Test service exists
                let exists = manager.exists(service_name);
                assert!(exists.is_ok(), "Should be able to check if service exists");

                if let Ok(true) = exists {
                    println!("✓ Service exists check passed");

                    // Test service status
                    let status_result = manager.status(service_name);
                    match status_result {
                        Ok(status) => {
                            println!("✓ Service status: {:?}", status);
                            assert!(
                                matches!(status, ServiceStatus::Running | ServiceStatus::Stopped),
                                "Service should be running or stopped (for oneshot)"
                            );
                        }
                        Err(e) => println!("⚠ Status check failed: {}", e),
                    }

                    // Test service logs
                    let logs_result = manager.logs(service_name, None);
                    match logs_result {
                        Ok(logs) => {
                            println!("✓ Retrieved logs: {}", logs.len());
                            // For echo command, we should have some output
                            assert!(
                                !logs.is_empty() || logs.contains("Hello"),
                                "Should have log output"
                            );
                        }
                        Err(e) => println!("⚠ Logs retrieval failed: {}", e),
                    }

                    // Test service list
                    let list_result = manager.list();
                    match list_result {
                        Ok(services) => {
                            println!("✓ Listed {} services", services.len());
                            assert!(
                                services.contains(&service_name.to_string()),
                                "Service should appear in list"
                            );
                        }
                        Err(e) => println!("⚠ List services failed: {}", e),
                    }
                }

                // Test service stop
                println!("Testing service stop...");
                let stop_result = manager.stop(service_name);
                match stop_result {
                    Ok(_) => println!("✓ Service stopped successfully"),
                    Err(e) => println!("⚠ Stop failed: {}", e),
                }

                // Test service removal
                println!("Testing service removal...");
                let remove_result = manager.remove(service_name);
                match remove_result {
                    Ok(_) => println!("✓ Service removed successfully"),
                    Err(e) => println!("⚠ Remove failed: {}", e),
                }
            }
            Err(e) => {
                println!("⚠ Service creation/start failed: {}", e);
                // This might be expected if zinit doesn't allow service creation
            }
        }

        // Final cleanup
        cleanup_test_service(&manager, service_name).await;
    } else {
        println!("⚠ Skipping test_service_lifecycle: No Zinit socket available");
    }
}

#[tokio::test]
async fn test_service_start_and_confirm() {
    if let Some(socket_path) = get_available_socket_path().await {
        let manager = ZinitServiceManager::new(&socket_path).expect("Failed to create manager");
        let service_name = "test-start-confirm-service";

        // Clean up any existing service first
        cleanup_test_service(&manager, service_name).await;

        let config = ServiceConfig {
            name: service_name.to_string(),
            binary_path: "sleep".to_string(),
            args: vec!["5".to_string()], // Sleep for 5 seconds
            working_directory: Some("/tmp".to_string()),
            environment: HashMap::new(),
            auto_restart: false,
        };

        // Test start_and_confirm with timeout
        println!("Testing start_and_confirm with timeout...");
        let start_result = manager.start_and_confirm(&config, 10);
        match start_result {
            Ok(_) => {
                println!("✓ Service started and confirmed successfully");

                // Verify it's actually running
                let status = manager.status(service_name);
                match status {
                    Ok(ServiceStatus::Running) => println!("✓ Service confirmed running"),
                    Ok(other_status) => {
                        println!("⚠ Service in unexpected state: {:?}", other_status)
                    }
                    Err(e) => println!("⚠ Status check failed: {}", e),
                }
            }
            Err(e) => {
                println!("⚠ start_and_confirm failed: {}", e);
            }
        }

        // Test start_existing_and_confirm
        println!("Testing start_existing_and_confirm...");
        let start_existing_result = manager.start_existing_and_confirm(service_name, 5);
        match start_existing_result {
            Ok(_) => println!("✓ start_existing_and_confirm succeeded"),
            Err(e) => println!("⚠ start_existing_and_confirm failed: {}", e),
        }

        // Cleanup
        cleanup_test_service(&manager, service_name).await;
    } else {
        println!("⚠ Skipping test_service_start_and_confirm: No Zinit socket available");
    }
}

#[tokio::test]
async fn test_service_restart() {
    if let Some(socket_path) = get_available_socket_path().await {
        let manager = ZinitServiceManager::new(&socket_path).expect("Failed to create manager");
        let service_name = "test-restart-service";

        // Clean up any existing service first
        cleanup_test_service(&manager, service_name).await;

        let config = ServiceConfig {
            name: service_name.to_string(),
            binary_path: "echo".to_string(),
            args: vec!["Restart test".to_string()],
            working_directory: Some("/tmp".to_string()),
            environment: HashMap::new(),
            auto_restart: true, // Enable auto-restart for this test
        };

        // Start the service first
        let start_result = manager.start(&config);
        if start_result.is_ok() {
            // Wait for service to be established
            sleep(Duration::from_millis(1000)).await;

            // Test restart
            println!("Testing service restart...");
            let restart_result = manager.restart(service_name);
            match restart_result {
                Ok(_) => {
                    println!("✓ Service restarted successfully");

                    // Wait and check status
                    sleep(Duration::from_millis(500)).await;

                    let status_result = manager.status(service_name);
                    match status_result {
                        Ok(status) => {
                            println!("✓ Service state after restart: {:?}", status);
                        }
                        Err(e) => println!("⚠ Status check after restart failed: {}", e),
                    }
                }
                Err(e) => {
                    println!("⚠ Restart failed: {}", e);
                }
            }
        }

        // Cleanup
        cleanup_test_service(&manager, service_name).await;
    } else {
        println!("⚠ Skipping test_service_restart: No Zinit socket available");
    }
}

#[tokio::test]
async fn test_error_handling() {
    if let Some(socket_path) = get_available_socket_path().await {
        let manager = ZinitServiceManager::new(&socket_path).expect("Failed to create manager");

        // Test operations on non-existent service
        let non_existent_service = "non-existent-service-12345";

        // Test status of non-existent service
        let status_result = manager.status(non_existent_service);
        match status_result {
            Err(ServiceManagerError::ServiceNotFound(_)) => {
                println!("✓ Correctly returned ServiceNotFound for non-existent service");
            }
            Err(other_error) => {
                println!(
                    "⚠ Got different error for non-existent service: {}",
                    other_error
                );
            }
            Ok(_) => {
                println!("⚠ Unexpectedly found non-existent service");
            }
        }

        // Test exists for non-existent service
        let exists_result = manager.exists(non_existent_service);
        match exists_result {
            Ok(false) => println!("✓ Correctly reported non-existent service as not existing"),
            Ok(true) => println!("⚠ Incorrectly reported non-existent service as existing"),
            Err(e) => println!("⚠ Error checking existence: {}", e),
        }

        // Test stop of non-existent service
        let stop_result = manager.stop(non_existent_service);
        match stop_result {
            Err(_) => println!("✓ Correctly failed to stop non-existent service"),
            Ok(_) => println!("⚠ Unexpectedly succeeded in stopping non-existent service"),
        }

        println!("✓ Error handling tests completed");
    } else {
        println!("⚠ Skipping test_error_handling: No Zinit socket available");
    }
}