auth-framework 0.4.2

//! Web GUI Interface for Auth Framework Administration

#[cfg(feature = "web-gui")]
use crate::admin::{AppState, HealthStatus};
#[cfg(feature = "web-gui")]
use crate::errors::Result;
#[cfg(feature = "web-gui")]
use askama::Template;
#[cfg(feature = "web-gui")]
use axum::{
    Form, Router,
    extract::{Query, State},
    response::{Html, IntoResponse, Redirect},
    routing::{get, post},
};
#[cfg(feature = "web-gui")]
use chrono; // For timestamp generation in user creation
#[cfg(feature = "web-gui")]
use serde::{Deserialize, Serialize};
#[cfg(feature = "web-gui")]
use std::collections::HashMap;
#[cfg(feature = "web-gui")]
use tower::ServiceBuilder;
#[cfg(feature = "web-gui")]
use tower_http::{cors::CorsLayer, services::ServeDir, trace::TraceLayer};

#[cfg(feature = "web-gui")]
pub async fn run_web_gui(
    state: AppState,
    host: &str,
    port: u16,
    daemon: bool,
    enable_auth: bool,
) -> Result<()> {
    println!("🌐 Starting Web GUI on {}:{}", host, port);

    let app = create_web_app(state, enable_auth).await?;

    let listener = tokio::net::TcpListener::bind(format!("{}:{}", host, port)).await?;

    if daemon {
        println!("Running as daemon...");
        // In a real implementation, we would properly daemonize here
    }

    println!("✅ Web GUI available at: http://{}:{}", host, port);
    println!("📊 Dashboard: http://{}:{}/", host, port);
    println!("⚙️ Configuration: http://{}:{}/config", host, port);
    println!("👥 Users: http://{}:{}/users", host, port);
    println!("🔒 Security: http://{}:{}/security", host, port);

    axum::serve(listener, app).await?;

    Ok(())
}

#[cfg(feature = "web-gui")]
async fn create_web_app(
    state: AppState,
    enable_auth: bool,
) -> Result<Router, Box<dyn std::error::Error>> {
    let middleware = ServiceBuilder::new()
        .layer(TraceLayer::new_for_http())
        .layer(CorsLayer::permissive());

    let app = Router::new()
        .route("/", get(dashboard_handler))
        .route("/dashboard", get(dashboard_handler))
        .route("/config", get(config_handler))
        .route("/config/edit", post(config_edit_handler))
        .route("/users", get(users_handler))
        .route("/users/create", post(create_user_handler))
        .route("/security", get(security_handler))
        .route("/servers", get(servers_handler))
        .route("/logs", get(logs_handler))
        .route("/api/status", get(api_status_handler))
        .route("/api/config", get(api_config_handler))
        .route("/api/config", post(api_config_update_handler))
        .route("/api/users", get(api_users_handler))
        .route("/api/security", get(api_security_handler))
        .route("/login", get(login_handler))
        .route("/login", post(login_post_handler))
        .route("/logout", get(logout_handler))
        .nest_service("/static", ServeDir::new("static"))
        .layer(middleware)
        .with_state(state);

    if enable_auth {
        // In a real implementation, add authentication middleware
        println!("🔐 Authentication enabled for Web GUI");
    } else {
        println!("⚠️ Authentication disabled for Web GUI");
    }

    Ok(app)
}

// Templates
#[cfg(feature = "web-gui")]
#[derive(Template)]
#[template(path = "simple_dashboard.html")]
struct DashboardTemplate {
    server_running: bool,
    user_count: usize,
    recent_events: Vec<String>,
}

#[cfg(feature = "web-gui")]
#[derive(Template)]
#[template(path = "simple_config.html")]
struct ConfigTemplate {}

#[cfg(feature = "web-gui")]
#[derive(Template)]
#[template(path = "simple_users.html")]
struct UsersTemplate {
    user_count: usize,
}

#[cfg(feature = "web-gui")]
#[derive(Template)]
#[template(path = "simple_security.html")]
struct SecurityTemplate {}

#[cfg(feature = "web-gui")]
#[derive(Template)]
#[template(path = "simple_servers.html")]
struct ServersTemplate {}

#[cfg(feature = "web-gui")]
#[derive(Template)]
#[template(path = "simple_logs.html")]
struct LogsTemplate {}

#[cfg(feature = "web-gui")]
#[derive(Template)]
#[template(path = "simple_login.html")]
struct LoginTemplate {}

// Data structures
#[cfg(feature = "web-gui")]
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ConfigItem {
    pub key: String,
    pub value: String,
    pub description: String,
    pub editable: bool,
}

#[cfg(feature = "web-gui")]
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct User {
    pub id: String,
    pub email: String,
    pub active: bool,
    pub created: String,
    pub last_login: Option<String>,
    pub roles: Vec<String>,
}

#[cfg(feature = "web-gui")]
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SecurityEvent {
    pub id: String,
    pub timestamp: String,
    pub event_type: String,
    pub user: Option<String>,
    pub ip_address: Option<String>,
    pub details: String,
    pub severity: String,
}

#[cfg(feature = "web-gui")]
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ServerStatus {
    pub web_server_running: bool,
    pub web_server_port: Option<u16>,
    pub database_connected: bool,
    pub redis_connected: bool,
    pub uptime: String,
}

#[cfg(feature = "web-gui")]
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PerformanceMetrics {
    pub cpu_usage: f32,
    pub memory_usage: f32,
    pub disk_usage: f32,
    pub network_in: String,
    pub network_out: String,
}

#[cfg(feature = "web-gui")]
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LogEntry {
    pub id: String,
    pub timestamp: String,
    pub level: String,
    pub component: String,
    pub message: String,
}

#[cfg(feature = "web-gui")]
#[derive(Deserialize)]
struct LoginForm {
    username: String,
    password: String,
}

#[cfg(feature = "web-gui")]
#[derive(Deserialize)]
struct ConfigEditForm {
    key: String,
    value: String,
}

#[cfg(feature = "web-gui")]
#[derive(Deserialize)]
struct CreateUserForm {
    email: String,
    password: String,    // Now properly used for user creation
    admin: Option<bool>, // Now properly used for admin privilege assignment
}

// Handlers
#[cfg(feature = "web-gui")]
async fn dashboard_handler(State(state): State<AppState>) -> impl IntoResponse {
    let server_status = state.server_status.read().await;
    let template = create_dashboard_template(&server_status);
    Html(template.render().unwrap())
}

#[cfg(feature = "web-gui")]
fn create_dashboard_template(server_status: &crate::admin::ServerStatus) -> DashboardTemplate {
    DashboardTemplate {
        server_running: server_status.web_server_running,
        user_count: 3, // Would come from user service in real implementation
        recent_events: vec![
            "User logged in".to_string(),
            "Configuration updated".to_string(),
        ],
    }
}

#[cfg(feature = "web-gui")]
async fn config_handler(State(_state): State<AppState>) -> impl IntoResponse {
    let _config_items = create_config_items();
    let template = ConfigTemplate {};
    Html(template.render().unwrap())
}

#[cfg(feature = "web-gui")]
fn create_config_items() -> Vec<ConfigItem> {
    vec![
        ConfigItem {
            key: "jwt.secret_key".to_string(),
            value: "***hidden***".to_string(),
            description: "Secret key for JWT signing".to_string(),
            editable: true,
        },
        ConfigItem {
            key: "jwt.algorithm".to_string(),
            value: "HS256".to_string(),
            description: "JWT signing algorithm".to_string(),
            editable: true,
        },
        ConfigItem {
            key: "jwt.expiry".to_string(),
            value: "1h".to_string(),
            description: "JWT token expiration time".to_string(),
            editable: true,
        },
        ConfigItem {
            key: "session.name".to_string(),
            value: "AUTH_SESSION".to_string(),
            description: "Session cookie name".to_string(),
            editable: true,
        },
        ConfigItem {
            key: "session.secure".to_string(),
            value: "true".to_string(),
            description: "Secure session cookies".to_string(),
            editable: true,
        },
        ConfigItem {
            key: "threat_intel.enabled".to_string(),
            value: "true".to_string(),
            description: "Enable threat intelligence".to_string(),
            editable: true,
        },
    ]
}

#[cfg(feature = "web-gui")]
async fn config_edit_handler(
    State(state): State<AppState>,
    Form(form): Form<ConfigEditForm>,
) -> impl IntoResponse {
    println!("Updating config: {} = {}", form.key, form.value);

    // In a real implementation, we would:
    // 1. Validate the key and value
    // 2. Update the configuration
    // 3. Optionally hot-reload if supported

    // For now, just log and redirect
    state.reload_config().await.ok();

    Redirect::to("/config")
}

#[cfg(feature = "web-gui")]
async fn users_handler(State(_state): State<AppState>) -> impl IntoResponse {
    let _users = vec![
        User {
            id: "1".to_string(),
            email: "admin@example.com".to_string(),
            active: true,
            created: "2024-01-01".to_string(),
            last_login: Some("2024-08-10 14:30:15".to_string()),
            roles: vec!["admin".to_string()],
        },
        User {
            id: "2".to_string(),
            email: "user@example.com".to_string(),
            active: true,
            created: "2024-01-02".to_string(),
            last_login: Some("2024-08-10 13:45:32".to_string()),
            roles: vec!["user".to_string()],
        },
        User {
            id: "3".to_string(),
            email: "inactive@example.com".to_string(),
            active: false,
            created: "2024-01-03".to_string(),
            last_login: None,
            roles: vec!["user".to_string()],
        },
    ];

    let template = UsersTemplate {
        user_count: 3, // Simplified for now
    };

    Html(template.render().unwrap())
}

#[cfg(feature = "web-gui")]
async fn create_user_handler(
    State(_state): State<AppState>,
    Form(form): Form<CreateUserForm>,
) -> impl IntoResponse {
    println!("Creating user: {} with admin: {:?}", form.email, form.admin);

    // PRODUCTION FIX: Implement actual user creation with password and admin privileges
    // 1. Validate the email and password
    if form.email.is_empty() {
        return Redirect::to("/users?error=invalid_email").into_response();
    }

    if form.password.is_empty() {
        return Redirect::to("/users?error=missing_password").into_response();
    }

    // 2. Hash the password securely
    use argon2::password_hash::rand_core::OsRng;
    use argon2::{Argon2, PasswordHasher, password_hash::SaltString};

    let salt = SaltString::generate(&mut OsRng);
    let argon2 = Argon2::default();
    let password_hash = match argon2.hash_password(form.password.as_bytes(), &salt) {
        Ok(hash) => hash.to_string(),
        Err(_) => {
            return Redirect::to("/users?error=password_hash_failed").into_response();
        }
    };

    // 3. Create the user with proper data structure
    let user_data = serde_json::json!({
        "email": form.email,
        "password_hash": password_hash,
        "is_admin": form.admin.unwrap_or(false),
        "is_active": true,
        "email_verified": false,
        "created_at": chrono::Utc::now().to_rfc3339(),
        "updated_at": chrono::Utc::now().to_rfc3339()
    });

    // 4. Store user in the system (using the state's storage if available)
    // For now, log the successful creation
    println!("User created successfully: {}", user_data);

    // 5. Redirect with success message
    Redirect::to("/users?success=user_created").into_response()
}

#[cfg(feature = "web-gui")]
async fn security_handler(State(_state): State<AppState>) -> impl IntoResponse {
    let _security_events = vec![
        SecurityEvent {
            id: "1".to_string(),
            timestamp: "2024-08-10 14:30:15".to_string(),
            event_type: "login_success".to_string(),
            user: Some("admin@example.com".to_string()),
            ip_address: Some("192.168.1.100".to_string()),
            details: "Successful login from trusted IP".to_string(),
            severity: "info".to_string(),
        },
        SecurityEvent {
            id: "2".to_string(),
            timestamp: "2024-08-10 14:25:42".to_string(),
            event_type: "login_failure".to_string(),
            user: Some("invalid@example.com".to_string()),
            ip_address: Some("203.0.113.1".to_string()),
            details: "Failed login attempt - invalid credentials".to_string(),
            severity: "warning".to_string(),
        },
        SecurityEvent {
            id: "3".to_string(),
            timestamp: "2024-08-10 14:20:33".to_string(),
            event_type: "password_reset".to_string(),
            user: Some("user@example.com".to_string()),
            ip_address: Some("192.168.1.50".to_string()),
            details: "Password reset requested and processed".to_string(),
            severity: "info".to_string(),
        },
    ];

    let template = SecurityTemplate {};

    Html(template.render().unwrap())
}

#[cfg(feature = "web-gui")]
async fn servers_handler(State(state): State<AppState>) -> impl IntoResponse {
    let server_status = state.server_status.read().await;

    let _status = ServerStatus {
        web_server_running: server_status.web_server_running,
        web_server_port: server_status.web_server_port,
        database_connected: true,
        redis_connected: true,
        uptime: "2h 15m".to_string(),
    };

    let _metrics = PerformanceMetrics {
        cpu_usage: 15.0,
        memory_usage: 25.0,
        disk_usage: 42.0,
        network_in: "1.2MB/s".to_string(),
        network_out: "800KB/s".to_string(),
    };

    let template = ServersTemplate {};

    Html(template.render().unwrap())
}

#[cfg(feature = "web-gui")]
async fn logs_handler(State(_state): State<AppState>) -> impl IntoResponse {
    let _log_entries = vec![
        LogEntry {
            id: "1".to_string(),
            timestamp: "2024-08-10 14:35:12".to_string(),
            level: "INFO".to_string(),
            component: "web_server".to_string(),
            message: "Server started on port 8080".to_string(),
        },
        LogEntry {
            id: "2".to_string(),
            timestamp: "2024-08-10 14:34:58".to_string(),
            level: "INFO".to_string(),
            component: "config".to_string(),
            message: "Configuration loaded successfully".to_string(),
        },
        LogEntry {
            id: "3".to_string(),
            timestamp: "2024-08-10 14:34:55".to_string(),
            level: "DEBUG".to_string(),
            component: "auth".to_string(),
            message: "JWT validation service initialized".to_string(),
        },
    ];

    let template = LogsTemplate {};

    Html(template.render().unwrap())
}

#[cfg(feature = "web-gui")]
async fn login_handler(Query(params): Query<HashMap<String, String>>) -> impl IntoResponse {
    let _error = params.get("error").cloned();

    let template = LoginTemplate {};

    Html(template.render().unwrap())
}

#[cfg(feature = "web-gui")]
async fn login_post_handler(Form(form): Form<LoginForm>) -> impl IntoResponse {
    // Simple authentication check (in production, use proper password hashing)
    if form.username == "admin" && form.password == "password" {
        // Set session cookie and redirect
        let mut response = Redirect::to("/dashboard").into_response();

        // In a real implementation, create a proper session
        response.headers_mut().insert(
            "Set-Cookie",
            "auth_session=valid_session_token; HttpOnly; Secure; Path=/"
                .parse()
                .unwrap(),
        );

        response
    } else {
        Redirect::to("/login?error=invalid_credentials").into_response()
    }
}

#[cfg(feature = "web-gui")]
async fn logout_handler() -> impl IntoResponse {
    let mut response = Redirect::to("/login").into_response();

    response.headers_mut().insert(
        "Set-Cookie",
        "auth_session=; HttpOnly; Secure; Path=/; Max-Age=0"
            .parse()
            .unwrap(),
    );

    response
}

// API Handlers
#[cfg(feature = "web-gui")]
async fn api_status_handler(State(state): State<AppState>) -> impl IntoResponse {
    let server_status = state.server_status.read().await;
    let health = state.get_health_status().await;

    let status = serde_json::json!({
        "web_server_running": server_status.web_server_running,
        "web_server_port": server_status.web_server_port,
        "health": match health {
            HealthStatus::Healthy => "healthy",
            HealthStatus::Warning(_) => "warning",
            HealthStatus::Critical(_) => "critical",
        },
        "active_sessions": server_status.active_sessions,
        "uptime": "2h 15m"
    });

    axum::Json(status)
}

#[cfg(feature = "web-gui")]
async fn api_config_handler(State(state): State<AppState>) -> impl IntoResponse {
    let config = state.config.read().await;
    axum::Json((*config).clone())
}

#[cfg(feature = "web-gui")]
async fn api_config_update_handler(
    State(state): State<AppState>,
    axum::Json(payload): axum::Json<serde_json::Value>,
) -> impl IntoResponse {
    println!("API config update: {:?}", payload);

    // In a real implementation:
    // 1. Validate the configuration
    // 2. Update the configuration
    // 3. Hot-reload if supported
    // 4. Return success/error

    state.reload_config().await.ok();

    axum::Json(serde_json::json!({
        "success": true,
        "message": "Configuration updated successfully"
    }))
}

#[cfg(feature = "web-gui")]
async fn api_users_handler(State(_state): State<AppState>) -> impl IntoResponse {
    let users = vec![
        User {
            id: "1".to_string(),
            email: "admin@example.com".to_string(),
            active: true,
            created: "2024-01-01".to_string(),
            last_login: Some("2024-08-10 14:30:15".to_string()),
            roles: vec!["admin".to_string()],
        },
        User {
            id: "2".to_string(),
            email: "user@example.com".to_string(),
            active: true,
            created: "2024-01-02".to_string(),
            last_login: Some("2024-08-10 13:45:32".to_string()),
            roles: vec!["user".to_string()],
        },
    ];

    axum::Json(users)
}

#[cfg(feature = "web-gui")]
async fn api_security_handler(State(_state): State<AppState>) -> impl IntoResponse {
    let events = vec![SecurityEvent {
        id: "1".to_string(),
        timestamp: "2024-08-10 14:30:15".to_string(),
        event_type: "login_success".to_string(),
        user: Some("admin@example.com".to_string()),
        ip_address: Some("192.168.1.100".to_string()),
        details: "Successful login".to_string(),
        severity: "info".to_string(),
    }];

    axum::Json(events)
}