use rhai::{Engine, EvalAltResult};
use sal_zinit_client::rhai::register_zinit_module;
use std::path::Path;

/// Helper function to create a Rhai engine with zinit functions registered
fn create_zinit_engine() -> Result<Engine, Box<EvalAltResult>> {
    let mut engine = Engine::new();
    register_zinit_module(&mut engine)?;
    Ok(engine)
}

/// Helper function to check if a zinit socket is available
fn get_available_socket_path() -> Option<String> {
    let common_paths = vec![
        "/var/run/zinit.sock",
        "/tmp/zinit.sock",
        "/run/zinit.sock",
        "./zinit.sock",
    ];

    for path in common_paths {
        if Path::new(path).exists() {
            println!("✓ Found Zinit socket at: {}", path);
            return Some(path.to_string());
        }
    }

    println!("⚠ No Zinit socket found. Rhai integration tests will be skipped.");
    None
}

#[test]
fn test_rhai_zinit_list() {
    if let Some(socket_path) = get_available_socket_path() {
        let engine = create_zinit_engine().expect("Failed to create Rhai engine");

        let script = format!(
            r#"
            let socket_path = "{}";
            let services = zinit_list(socket_path);
            services
            "#,
            socket_path
        );

        let result: Result<rhai::Map, Box<EvalAltResult>> = engine.eval(&script);

        match result {
            Ok(services) => {
                println!("✓ Rhai zinit_list returned {} services", services.len());

                // Verify it's a proper map with valid service data
                // Verify all service names are non-empty strings
                for (name, _state) in services.iter() {
                    assert!(!name.is_empty(), "Service name should not be empty");
                }

                // Print some services for debugging
                for (name, state) in services.iter().take(3) {
                    println!("  Service: {} -> {:?}", name, state);
                }
            }
            Err(e) => {
                println!("⚠ Rhai zinit_list failed: {}", e);
                // Don't fail the test - might be expected
            }
        }
    } else {
        println!("⚠ Skipping test_rhai_zinit_list: No Zinit socket available");
    }
}

#[test]
fn test_rhai_service_management() {
    if let Some(socket_path) = get_available_socket_path() {
        let engine = create_zinit_engine().expect("Failed to create Rhai engine");

        let script = format!(
            r#"
            let socket_path = "{}";
            let service_name = "rhai-test-service";
            let exec_command = "echo 'Hello from Rhai test'";
            let oneshot = true;
            
            // Clean up any existing service first
            try {{
                zinit_stop(socket_path, service_name);
                zinit_forget(socket_path, service_name);
                zinit_delete_service(socket_path, service_name);
            }} catch(e) {{
                // Ignore cleanup errors
            }}
            
            let results = #{{}};
            
            // Test service creation
            try {{
                let create_result = zinit_create_service(socket_path, service_name, exec_command, oneshot);
                results.create = create_result;
                
                // Test service monitoring
                try {{
                    let monitor_result = zinit_monitor(socket_path, service_name);
                    results.monitor = monitor_result;
                    
                    // Test service start
                    try {{
                        let start_result = zinit_start(socket_path, service_name);
                        results.start = start_result;
                        
                        // Test service status
                        try {{
                            let status_result = zinit_status(socket_path, service_name);
                            results.status = status_result;
                        }} catch(e) {{
                            results.status_error = e.to_string();
                        }}
                        
                        // Test service stop
                        try {{
                            let stop_result = zinit_stop(socket_path, service_name);
                            results.stop = stop_result;
                        }} catch(e) {{
                            results.stop_error = e.to_string();
                        }}
                        
                    }} catch(e) {{
                        results.start_error = e.to_string();
                    }}
                    
                    // Test forget
                    try {{
                        let forget_result = zinit_forget(socket_path, service_name);
                        results.forget = forget_result;
                    }} catch(e) {{
                        results.forget_error = e.to_string();
                    }}
                    
                }} catch(e) {{
                    results.monitor_error = e.to_string();
                }}
                
                // Test service deletion
                try {{
                    let delete_result = zinit_delete_service(socket_path, service_name);
                    results.delete = delete_result;
                }} catch(e) {{
                    results.delete_error = e.to_string();
                }}
                
            }} catch(e) {{
                results.create_error = e.to_string();
            }}
            
            results
            "#,
            socket_path
        );

        let result: Result<rhai::Map, Box<EvalAltResult>> = engine.eval(&script);

        match result {
            Ok(results) => {
                println!("✓ Rhai service management test completed");

                for (operation, result) in results.iter() {
                    println!("  {}: {:?}", operation, result);
                }

                // Verify we got meaningful results from service management operations
                assert!(
                    !results.is_empty(),
                    "Should have results from service operations"
                );

                // Check that we attempted service creation (success or error)
                assert!(
                    results.contains_key("create") || results.contains_key("create_error"),
                    "Should have attempted service creation"
                );
            }
            Err(e) => {
                println!("⚠ Rhai service management test failed: {}", e);
            }
        }
    } else {
        println!("⚠ Skipping test_rhai_service_management: No Zinit socket available");
    }
}

#[test]
fn test_rhai_logs_functionality() {
    if let Some(socket_path) = get_available_socket_path() {
        let engine = create_zinit_engine().expect("Failed to create Rhai engine");

        let script = format!(
            r#"
            let socket_path = "{}";
            let results = #{{}};
            
            // Test getting all logs
            try {{
                let all_logs = zinit_logs_all(socket_path);
                results.all_logs_count = all_logs.len();
                if all_logs.len() > 0 {{
                    results.first_log = all_logs[0];
                }}
            }} catch(e) {{
                results.all_logs_error = e.to_string();
            }}
            
            // Test getting filtered logs
            try {{
                let filtered_logs = zinit_logs(socket_path, "zinit");
                results.filtered_logs_count = filtered_logs.len();
            }} catch(e) {{
                results.filtered_logs_error = e.to_string();
            }}
            
            results
            "#,
            socket_path
        );

        let result: Result<rhai::Map, Box<EvalAltResult>> = engine.eval(&script);

        match result {
            Ok(results) => {
                println!("✓ Rhai logs functionality test completed");

                for (key, value) in results.iter() {
                    println!("  {}: {:?}", key, value);
                }

                // Verify we got meaningful results from logs operations
                assert!(
                    !results.is_empty(),
                    "Should have results from logs operations"
                );

                // Check that we attempted to get logs (success or error)
                assert!(
                    results.contains_key("all_logs_count")
                        || results.contains_key("all_logs_error"),
                    "Should have attempted to retrieve all logs"
                );
            }
            Err(e) => {
                println!("⚠ Rhai logs functionality test failed: {}", e);
            }
        }
    } else {
        println!("⚠ Skipping test_rhai_logs_functionality: No Zinit socket available");
    }
}

#[test]
fn test_rhai_kill_functionality() {
    if let Some(socket_path) = get_available_socket_path() {
        let engine = create_zinit_engine().expect("Failed to create Rhai engine");

        let script = format!(
            r#"
            let socket_path = "{}";
            let service_name = "rhai-kill-test-service";
            let exec_command = "sleep 30";
            let oneshot = false;
            
            let results = #{{}};
            
            // Clean up any existing service first
            try {{
                zinit_stop(socket_path, service_name);
                zinit_forget(socket_path, service_name);
                zinit_delete_service(socket_path, service_name);
            }} catch(e) {{
                // Ignore cleanup errors
            }}
            
            // Create and start a long-running service for kill testing
            try {{
                let create_result = zinit_create_service(socket_path, service_name, exec_command, oneshot);
                results.create = create_result;
                
                try {{
                    let monitor_result = zinit_monitor(socket_path, service_name);
                    let start_result = zinit_start(socket_path, service_name);
                    results.start = start_result;
                    
                    // Test kill with TERM signal
                    try {{
                        let kill_result = zinit_kill(socket_path, service_name, "TERM");
                        results.kill = kill_result;
                    }} catch(e) {{
                        results.kill_error = e.to_string();
                    }}
                    
                }} catch(e) {{
                    results.start_error = e.to_string();
                }}
                
                // Clean up
                try {{
                    zinit_stop(socket_path, service_name);
                    zinit_forget(socket_path, service_name);
                    zinit_delete_service(socket_path, service_name);
                }} catch(e) {{
                    // Ignore cleanup errors
                }}
                
            }} catch(e) {{
                results.create_error = e.to_string();
            }}
            
            results
            "#,
            socket_path
        );

        let result: Result<rhai::Map, Box<EvalAltResult>> = engine.eval(&script);

        match result {
            Ok(results) => {
                println!("✓ Rhai kill functionality test completed");

                for (operation, result) in results.iter() {
                    println!("  {}: {:?}", operation, result);
                }

                // Verify we got meaningful results from kill functionality operations
                assert!(
                    !results.is_empty(),
                    "Should have results from kill operations"
                );

                // Check that we attempted service creation for kill testing (success or error)
                assert!(
                    results.contains_key("create") || results.contains_key("create_error"),
                    "Should have attempted service creation for kill testing"
                );
            }
            Err(e) => {
                println!("⚠ Rhai kill functionality test failed: {}", e);
            }
        }
    } else {
        println!("⚠ Skipping test_rhai_kill_functionality: No Zinit socket available");
    }
}

#[test]
fn test_rhai_error_handling() {
    let engine = create_zinit_engine().expect("Failed to create Rhai engine");

    let script = r#"
        let invalid_socket = "/invalid/path/to/zinit.sock";
        let results = #{};
        
        // Test with invalid socket path
        try {
            let services = zinit_list(invalid_socket);
            results.unexpected_success = true;
        } catch(e) {
            results.expected_error = e.to_string();
        }
        
        results
    "#;

    let result: Result<rhai::Map, Box<EvalAltResult>> = engine.eval(script);

    match result {
        Ok(results) => {
            println!("✓ Rhai error handling test completed");

            for (key, value) in results.iter() {
                println!("  {}: {:?}", key, value);
            }

            // Should have caught an error
            assert!(results.contains_key("expected_error"));
        }
        Err(e) => {
            println!("⚠ Rhai error handling test failed: {}", e);
        }
    }
}

#[test]
fn test_rhai_get_service_config() {
    if let Some(socket_path) = get_available_socket_path() {
        let engine = create_zinit_engine().expect("Failed to create Rhai engine");

        let script = format!(
            r#"
            let socket_path = "{}";
            let results = #{{}};
            
            // First get list of services
            try {{
                let services = zinit_list(socket_path);
                results.services_count = services.len();
                
                if services.len() > 0 {{
                    // Get the first service name
                    let service_names = services.keys();
                    if service_names.len() > 0 {{
                        let first_service = service_names[0];
                        results.test_service = first_service;
                        
                        // Try to get its configuration
                        try {{
                            let config = zinit_get_service(socket_path, first_service);
                            results.config_retrieved = true;
                            results.config_type = type_of(config);
                        }} catch(e) {{
                            results.config_error = e.to_string();
                        }}
                    }}
                }}
            }} catch(e) {{
                results.list_error = e.to_string();
            }}
            
            results
            "#,
            socket_path
        );

        let result: Result<rhai::Map, Box<EvalAltResult>> = engine.eval(&script);

        match result {
            Ok(results) => {
                println!("✓ Rhai get service config test completed");

                for (key, value) in results.iter() {
                    println!("  {}: {:?}", key, value);
                }

                // Verify we got meaningful results from get service config operations
                assert!(
                    !results.is_empty(),
                    "Should have results from config operations"
                );

                // Check that we attempted to list services (success or error)
                assert!(
                    results.contains_key("services_count") || results.contains_key("list_error"),
                    "Should have attempted to list services for config testing"
                );
            }
            Err(e) => {
                println!("⚠ Rhai get service config test failed: {}", e);
            }
        }
    } else {
        println!("⚠ Skipping test_rhai_get_service_config: No Zinit socket available");
    }
}