use crate::auth::AuthManager;
use crate::config::Config;
use crate::container::DevContainerOrchestrator;
use anyhow::{Context, Result};
use hyper::{Request, Response, StatusCode};
use serde::{Deserialize, Serialize};
use std::sync::Arc;
use tracing::{debug, error};

#[derive(Debug, Deserialize)]
struct RpcRequest {
    method: String,
    params: Option<serde_json::Value>,
}

#[derive(Debug, Serialize)]
struct RpcResponse {
    result: Option<serde_json::Value>,
    error: Option<RpcError>,
}

#[derive(Debug, Serialize)]
struct RpcError {
    code: i32,
    message: String,
    data: Option<serde_json::Value>,
}

/// Default dev password when no user is set up (matches mock-backend).
const DEV_DEFAULT_PASSWORD: &str = "password123";

pub struct RpcHandler {
    config: Config,
    auth_manager: AuthManager,
    orchestrator: Option<Arc<DevContainerOrchestrator>>,
}

impl RpcHandler {
    pub async fn new(config: Config) -> Result<Self> {
        let auth_manager = AuthManager::new(config.data_dir.clone());
        let orchestrator = if config.dev_mode {
            Some(Arc::new(
                DevContainerOrchestrator::new(config.clone()).await?,
            ))
        } else {
            None
        };

        Ok(Self {
            config,
            auth_manager,
            orchestrator,
        })
    }

    pub async fn handle(
        &self,
        req: Request<hyper::Body>,
    ) -> Result<Response<hyper::Body>> {
        // Read request body
        let (_, body) = req.into_parts();
        let body_bytes = hyper::body::to_bytes(body).await
            .context("Failed to read body")?;

        let rpc_req: RpcRequest = serde_json::from_slice(&body_bytes)
            .context("Invalid RPC request")?;

        debug!("RPC method: {}", rpc_req.method);

        // Route to handler
        let result = match rpc_req.method.as_str() {
            "echo" => self.handle_echo(rpc_req.params).await,
            "server.echo" => self.handle_echo(rpc_req.params).await,
            "auth.login" => self.handle_auth_login(rpc_req.params).await,
            "auth.logout" => self.handle_auth_logout().await,
            
            // Container orchestration (for Archipelago-managed containers)
            "container-install" => self.handle_container_install(rpc_req.params).await,
            "container-start" => self.handle_container_start(rpc_req.params).await,
            "container-stop" => self.handle_container_stop(rpc_req.params).await,
            "container-remove" => self.handle_container_remove(rpc_req.params).await,
            "container-list" => self.handle_container_list().await,
            "container-status" => self.handle_container_status(rpc_req.params).await,
            "container-logs" => self.handle_container_logs(rpc_req.params).await,
            "container-health" => self.handle_container_health(rpc_req.params).await,
            
            // Package management (for docker-compose apps)
            "package.install" => self.handle_package_install(rpc_req.params).await,
            "package.start" => self.handle_package_start(rpc_req.params).await,
            "package.stop" => self.handle_package_stop(rpc_req.params).await,
            "package.restart" => self.handle_package_restart(rpc_req.params).await,
            
            // Bundled app management (for pre-loaded container images)
            "bundled-app-start" => self.handle_bundled_app_start(rpc_req.params).await,
            "bundled-app-stop" => self.handle_bundled_app_stop(rpc_req.params).await,
            
            _ => {
                Err(anyhow::anyhow!("Unknown method: {}", rpc_req.method))
            }
        };

        // Build response
        let rpc_resp = match result {
            Ok(data) => RpcResponse {
                result: Some(data),
                error: None,
            },
            Err(e) => {
                error!("RPC error: {}", e);
                RpcResponse {
                    result: None,
                    error: Some(RpcError {
                        code: -1,
                        message: e.to_string(),
                        data: None,
                    }),
                }
            }
        };

        let body = serde_json::to_vec(&rpc_resp)
            .context("Failed to serialize response")?;

        Ok(Response::builder()
            .status(StatusCode::OK)
            .header("Content-Type", "application/json")
            .body(hyper::Body::from(body))
            .unwrap())
    }

    async fn handle_echo(&self, params: Option<serde_json::Value>) -> Result<serde_json::Value> {
        if let Some(p) = params {
            if let Some(msg) = p.get("message").and_then(|v| v.as_str()) {
                return Ok(serde_json::json!({ "message": msg }));
            }
        }
        Ok(serde_json::json!({ "message": "Hello from Archipelago!" }))
    }

    async fn handle_auth_login(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let password = params
            .get("password")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing password"))?;

        let is_setup = self.auth_manager.is_setup().await?;
        if !is_setup {
            // Dev mode: allow default password so UI can log in without running setup
            if self.config.dev_mode && password == DEV_DEFAULT_PASSWORD {
                return Ok(serde_json::Value::Null);
            }
            return Err(anyhow::anyhow!(
                "User not set up. Please complete setup first."
            ));
        }

        let valid = self.auth_manager.verify_password(password).await?;
        if !valid {
            return Err(anyhow::anyhow!("Password Incorrect"));
        }

        Ok(serde_json::Value::Null)
    }

    async fn handle_auth_logout(&self) -> Result<serde_json::Value> {
        // For now, just return success. In a full implementation, this would:
        // - Invalidate session tokens
        // - Clear cookies (if we were managing them)
        // - Close authenticated WebSocket connections
        Ok(serde_json::Value::Null)
    }

    async fn handle_container_install(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let orchestrator = self
            .orchestrator
            .as_ref()
            .ok_or_else(|| anyhow::anyhow!("Container orchestrator not available (dev mode required)"))?;

        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let manifest_path = params
            .get("manifest_path")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing manifest_path"))?;

        // Load manifest
        let manifest_content = tokio::fs::read_to_string(manifest_path)
            .await
            .context("Failed to read manifest file")?;
        let manifest: archipelago_container::AppManifest = serde_yaml::from_str(&manifest_content)
            .context("Failed to parse manifest")?;

        let container_name = orchestrator
            .install_container(&manifest, manifest_path)
            .await
            .context("Failed to install container")?;

        Ok(serde_json::json!(container_name))
    }

    async fn handle_container_start(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let orchestrator = self
            .orchestrator
            .as_ref()
            .ok_or_else(|| anyhow::anyhow!("Container orchestrator not available (dev mode required)"))?;

        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let app_id = params
            .get("app_id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing app_id"))?;

        orchestrator
            .start_container(app_id)
            .await
            .context("Failed to start container")?;

        Ok(serde_json::json!({ "status": "started" }))
    }

    async fn handle_container_stop(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let orchestrator = self
            .orchestrator
            .as_ref()
            .ok_or_else(|| anyhow::anyhow!("Container orchestrator not available (dev mode required)"))?;

        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let app_id = params
            .get("app_id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing app_id"))?;

        orchestrator
            .stop_container(app_id)
            .await
            .context("Failed to stop container")?;

        Ok(serde_json::json!({ "status": "stopped" }))
    }

    async fn handle_container_remove(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let orchestrator = self
            .orchestrator
            .as_ref()
            .ok_or_else(|| anyhow::anyhow!("Container orchestrator not available (dev mode required)"))?;

        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let app_id = params
            .get("app_id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing app_id"))?;
        let preserve_data = params
            .get("preserve_data")
            .and_then(|v| v.as_bool())
            .unwrap_or(false);

        orchestrator
            .remove_container(app_id, preserve_data)
            .await
            .context("Failed to remove container")?;

        Ok(serde_json::json!({ "status": "removed" }))
    }

    async fn handle_container_list(&self) -> Result<serde_json::Value> {
        // Try to get containers from orchestrator first
        if let Some(orchestrator) = &self.orchestrator {
            if let Ok(containers) = orchestrator.list_containers().await {
                if !containers.is_empty() {
                    return Ok(serde_json::to_value(containers)?);
                }
            }
        }

        // Fallback: list containers directly via sudo podman (for bundled apps)
        let output = tokio::process::Command::new("sudo")
            .args(["podman", "ps", "-a", "--format", "json"])
            .output()
            .await
            .context("Failed to list containers via podman")?;

        if !output.status.success() {
            // If podman fails, return empty list
            return Ok(serde_json::json!([]));
        }

        let stdout = String::from_utf8_lossy(&output.stdout);
        if stdout.trim().is_empty() {
            return Ok(serde_json::json!([]));
        }

        // Parse podman JSON output
        let podman_containers: Vec<serde_json::Value> = serde_json::from_str(&stdout)
            .unwrap_or_else(|_| Vec::new());

        // Convert to our ContainerStatus format
        let containers: Vec<serde_json::Value> = podman_containers
            .iter()
            .map(|c| {
                let state = c.get("State").and_then(|v| v.as_str()).unwrap_or("unknown");
                let mapped_state = match state.to_lowercase().as_str() {
                    "running" => "running",
                    "exited" => "exited",
                    "stopped" => "stopped",
                    "created" => "created",
                    "paused" => "paused",
                    _ => "unknown",
                };
                
                serde_json::json!({
                    "id": c.get("Id").and_then(|v| v.as_str()).unwrap_or(""),
                    "name": c.get("Names").and_then(|v| v.as_array()).and_then(|a| a.first()).and_then(|v| v.as_str()).unwrap_or(""),
                    "state": mapped_state,
                    "image": c.get("Image").and_then(|v| v.as_str()).unwrap_or(""),
                    "created": c.get("Created").and_then(|v| v.as_str()).unwrap_or(""),
                    "ports": c.get("Ports").and_then(|v| v.as_array()).map(|a| 
                        a.iter().filter_map(|p| p.get("hostPort").and_then(|v| v.as_u64()).map(|p| p.to_string())).collect::<Vec<_>>()
                    ).unwrap_or_default(),
                })
            })
            .collect();

        Ok(serde_json::json!(containers))
    }

    async fn handle_container_status(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let orchestrator = self
            .orchestrator
            .as_ref()
            .ok_or_else(|| anyhow::anyhow!("Container orchestrator not available (dev mode required)"))?;

        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let app_id = params
            .get("app_id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing app_id"))?;

        let status = orchestrator
            .get_container_status(app_id)
            .await
            .context("Failed to get container status")?;

        Ok(serde_json::to_value(status)?)
    }

    async fn handle_container_logs(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let orchestrator = self
            .orchestrator
            .as_ref()
            .ok_or_else(|| anyhow::anyhow!("Container orchestrator not available (dev mode required)"))?;

        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let app_id = params
            .get("app_id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing app_id"))?;
        let lines = params
            .get("lines")
            .and_then(|v| v.as_u64())
            .unwrap_or(100) as u32;

        let logs = orchestrator
            .get_container_logs(app_id, lines)
            .await
            .context("Failed to get container logs")?;

        Ok(serde_json::to_value(logs)?)
    }

    async fn handle_container_health(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let orchestrator = self
            .orchestrator
            .as_ref()
            .ok_or_else(|| anyhow::anyhow!("Container orchestrator not available (dev mode required)"))?;

        // If app_id is provided, get health for that app
        if let Some(params) = params {
            if let Some(app_id) = params.get("app_id").and_then(|v| v.as_str()) {
                let health = orchestrator
                    .get_health_status(app_id)
                    .await
                    .context("Failed to get container health")?;
                return Ok(serde_json::json!({ app_id: health }));
            }
        }

        // Otherwise, get health for all containers
        let containers = orchestrator
            .list_containers()
            .await
            .context("Failed to list containers")?;

        let mut health_map = serde_json::Map::new();
        for container in containers {
            // Extract app_id from container name
            if let Some(app_id) = container.name.strip_prefix("archipelago-") {
                if let Some(app_id) = app_id.strip_suffix("-dev") {
                    match orchestrator.get_health_status(app_id).await {
                        Ok(health) => {
                            health_map.insert(app_id.to_string(), serde_json::Value::String(health));
                        }
                        Err(_) => {
                            health_map.insert(app_id.to_string(), serde_json::Value::String("unknown".to_string()));
                        }
                    }
                }
            }
        }

        Ok(serde_json::Value::Object(health_map))
    }

    // Package management methods for podman containers
    
    /// Install a package from a Docker image
    /// Security: Image verification, resource limits, network isolation
    async fn handle_package_install(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        
        let package_id = params
            .get("id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing package id"))?;
            
        let docker_image = params
            .get("dockerImage")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing dockerImage"))?;

        debug!("Installing package {} from image {}", package_id, docker_image);

        // Security: Validate image name format (prevent injection)
        if !is_valid_docker_image(docker_image) {
            return Err(anyhow::anyhow!("Invalid Docker image format"));
        }

        // Check if container already exists
        let check_output = tokio::process::Command::new("sudo")
            .args(["podman", "ps", "-a", "--format", "{{.Names}}", "--filter", &format!("name=^{}$", package_id)])
            .output()
            .await
            .context("Failed to check existing containers")?;

        if !String::from_utf8_lossy(&check_output.stdout).trim().is_empty() {
            return Err(anyhow::anyhow!("Container {} already exists. Stop and remove it first.", package_id));
        }

        // Pull the image (with verification in the future)
        debug!("Pulling image: {}", docker_image);
        let pull_output = tokio::process::Command::new("sudo")
            .args(["podman", "pull", docker_image])
            .output()
            .await
            .context("Failed to pull image")?;

        if !pull_output.status.success() {
            let stderr = String::from_utf8_lossy(&pull_output.stderr);
            return Err(anyhow::anyhow!("Failed to pull image: {}", stderr));
        }

        // Create and start container with security constraints
        // TODO: Load these from manifest.yml for the specific app
        let mut run_args = vec![
            "podman", "run",
            "-d",  // Detached
            "--name", package_id,
            "--restart=unless-stopped",  // Auto-restart policy
        ];

        // App-specific configuration (should come from manifest)
        let (ports, volumes, env_vars, custom_command) = get_app_config(package_id);
        
        // Special handling for Tailscale: requires host network and privileged mode
        let is_tailscale = package_id == "tailscale";
        
        if is_tailscale {
            run_args.push("--network=host");
            run_args.push("--privileged");
            run_args.push("--cap-add=NET_ADMIN");
            run_args.push("--cap-add=NET_RAW");
            run_args.push("--device=/dev/net/tun");
        }
        
        // Create data directories if they don't exist
        for volume in &volumes {
            if let Some(host_path) = volume.split(':').next() {
                if host_path.starts_with("/var/lib/archipelago/") {
                    debug!("Creating directory: {}", host_path);
                    let create_dir = tokio::process::Command::new("sudo")
                        .args(["mkdir", "-p", host_path])
                        .output()
                        .await;
                    
                    if let Err(e) = create_dir {
                        debug!("Failed to create directory {}: {}", host_path, e);
                    }
                }
            }
        }
        
        // Add port mappings (skip if host network mode like Tailscale)
        if !is_tailscale {
            for port in &ports {
                run_args.push("-p");
                run_args.push(port);
            }
        }
        
        // Add volume mounts
        for volume in &volumes {
            run_args.push("-v");
            run_args.push(volume);
        }
        
        // Add environment variables
        for env in &env_vars {
            run_args.push("-e");
            run_args.push(env);
        }
        
        // Security: Network isolation (unless host network required)
        // run_args.push("--network=isolated");  // Future: per-app network
        
        // Security: Resource limits (from manifest)
        run_args.push("--memory=2g");  // TODO: from manifest
        run_args.push("--cpus=2");     // TODO: from manifest
        
        // Finally, the image
        run_args.push(docker_image);

        debug!("Running container with args: {:?}", run_args);
        
        // Build command with optional custom command
        let mut cmd = tokio::process::Command::new("sudo");
        cmd.args(&run_args);
        
        // Add custom command if specified (e.g., for Tailscale web UI)
        if let Some(custom_cmd) = custom_command {
            cmd.arg(custom_cmd);
        }
        
        let run_output = cmd
            .output()
            .await
            .context("Failed to run container")?;

        if !run_output.status.success() {
            let stderr = String::from_utf8_lossy(&run_output.stderr);
            return Err(anyhow::anyhow!("Failed to start container: {}", stderr));
        }

        let container_id = String::from_utf8_lossy(&run_output.stdout).trim().to_string();
        
        Ok(serde_json::json!({
            "success": true,
            "package_id": package_id,
            "container_id": container_id,
            "message": format!("Package {} installed and started", package_id)
        }))
    }
    
    // Package management methods for docker-compose containers
    async fn handle_package_start(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let package_id = params
            .get("id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing package id"))?;

        // Convert package ID to container name (e.g., "bitcoin" -> "archy-bitcoin")
        // But also check if container exists without the prefix
        let container_name = if let Ok(output) = tokio::process::Command::new("sudo")
            .args(["podman", "ps", "-a", "--format", "{{.Names}}", "--filter", &format!("name=^{}$", package_id)])
            .output()
            .await
        {
            let stdout = String::from_utf8_lossy(&output.stdout);
            if !stdout.trim().is_empty() {
                debug!("Found container without prefix: {}", package_id);
                package_id.to_string()
            } else {
                debug!("Using archy- prefix: archy-{}", package_id);
                format!("archy-{}", package_id)
            }
        } else {
            format!("archy-{}", package_id)
        };
        
        // Use podman CLI to start the container
        let output = tokio::process::Command::new("sudo")
            .args(["podman", "start", &container_name])
            .output()
            .await
            .context("Failed to execute podman start")?;

        if !output.status.success() {
            let stderr = String::from_utf8_lossy(&output.stderr);
            return Err(anyhow::anyhow!("Failed to start container: {}", stderr));
        }

        Ok(serde_json::Value::Null)
    }

    async fn handle_package_stop(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let package_id = params
            .get("id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing package id"))?;

        // Convert package ID to container name
        let container_name = if let Ok(output) = tokio::process::Command::new("sudo")
            .args(["podman", "ps", "-a", "--format", "{{.Names}}", "--filter", &format!("name=^{}$", package_id)])
            .output()
            .await
        {
            let stdout = String::from_utf8_lossy(&output.stdout);
            if !stdout.trim().is_empty() {
                debug!("Found container without prefix: {}", package_id);
                package_id.to_string()
            } else {
                debug!("Using archy- prefix: archy-{}", package_id);
                format!("archy-{}", package_id)
            }
        } else {
            format!("archy-{}", package_id)
        };
        
        // Use podman CLI to stop the container
        let output = tokio::process::Command::new("sudo")
            .args(["podman", "stop", &container_name])
            .output()
            .await
            .context("Failed to execute podman stop")?;

        if !output.status.success() {
            let stderr = String::from_utf8_lossy(&output.stderr);
            return Err(anyhow::anyhow!("Failed to stop container: {}", stderr));
        }

        Ok(serde_json::Value::Null)
    }

    async fn handle_package_restart(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let package_id = params
            .get("id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing package id"))?;

        // Convert package ID to container name
        let container_name = if let Ok(output) = tokio::process::Command::new("sudo")
            .args(["podman", "ps", "-a", "--format", "{{.Names}}", "--filter", &format!("name=^{}$", package_id)])
            .output()
            .await
        {
            let stdout = String::from_utf8_lossy(&output.stdout);
            if !stdout.trim().is_empty() {
                debug!("Found container without prefix: {}", package_id);
                package_id.to_string()
            } else {
                debug!("Using archy- prefix: archy-{}", package_id);
                format!("archy-{}", package_id)
            }
        } else {
            format!("archy-{}", package_id)
        };
        
        // Use podman CLI to restart the container
        let output = tokio::process::Command::new("sudo")
            .args(["podman", "restart", &container_name])
            .output()
            .await
            .context("Failed to execute podman restart")?;

        if !output.status.success() {
            let stderr = String::from_utf8_lossy(&output.stderr);
            return Err(anyhow::anyhow!("Failed to restart container: {}", stderr));
        }

        Ok(serde_json::Value::Null)
    }

    /// Start a bundled app (create container from pre-loaded image if needed, then start)
    async fn handle_bundled_app_start(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let app_id = params
            .get("app_id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing app_id"))?;
        let image = params
            .get("image")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing image"))?;
        let ports = params
            .get("ports")
            .and_then(|v| v.as_array())
            .ok_or_else(|| anyhow::anyhow!("Missing ports"))?;
        let volumes = params
            .get("volumes")
            .and_then(|v| v.as_array())
            .ok_or_else(|| anyhow::anyhow!("Missing volumes"))?;

        // Check if container already exists
        let check_output = tokio::process::Command::new("sudo")
            .args(["podman", "ps", "-a", "--format", "{{.Names}}", "--filter", &format!("name={}", app_id)])
            .output()
            .await
            .context("Failed to check container")?;

        let existing = String::from_utf8_lossy(&check_output.stdout);
        
        if existing.trim().is_empty() {
            // Container doesn't exist - create it
            let mut cmd = tokio::process::Command::new("sudo");
            cmd.args(["podman", "run", "-d", "--name", app_id]);

            // Add port mappings
            for port in ports {
                if let (Some(host), Some(container)) = (
                    port.get("host").and_then(|v| v.as_u64()),
                    port.get("container").and_then(|v| v.as_u64()),
                ) {
                    cmd.arg("-p").arg(format!("{}:{}", host, container));
                }
            }

            // Add volume mappings
            for volume in volumes {
                if let (Some(host), Some(container)) = (
                    volume.get("host").and_then(|v| v.as_str()),
                    volume.get("container").and_then(|v| v.as_str()),
                ) {
                    // Create host directory if it doesn't exist
                    let _ = tokio::process::Command::new("sudo")
                        .args(["mkdir", "-p", host])
                        .output()
                        .await;
                    cmd.arg("-v").arg(format!("{}:{}", host, container));
                }
            }

            cmd.arg(image);

            let output = cmd.output().await.context("Failed to create container")?;

            if !output.status.success() {
                let stderr = String::from_utf8_lossy(&output.stderr);
                return Err(anyhow::anyhow!("Failed to create container: {}", stderr));
            }
        } else {
            // Container exists - just start it
            let output = tokio::process::Command::new("sudo")
                .args(["podman", "start", app_id])
                .output()
                .await
                .context("Failed to start container")?;

            if !output.status.success() {
                let stderr = String::from_utf8_lossy(&output.stderr);
                return Err(anyhow::anyhow!("Failed to start container: {}", stderr));
            }
        }

        Ok(serde_json::json!({ "status": "started", "app_id": app_id }))
    }

    /// Stop a bundled app
    async fn handle_bundled_app_stop(
        &self,
        params: Option<serde_json::Value>,
    ) -> Result<serde_json::Value> {
        let params = params.ok_or_else(|| anyhow::anyhow!("Missing params"))?;
        let app_id = params
            .get("app_id")
            .and_then(|v| v.as_str())
            .ok_or_else(|| anyhow::anyhow!("Missing app_id"))?;

        let output = tokio::process::Command::new("sudo")
            .args(["podman", "stop", app_id])
            .output()
            .await
            .context("Failed to stop container")?;

        if !output.status.success() {
            let stderr = String::from_utf8_lossy(&output.stderr);
            return Err(anyhow::anyhow!("Failed to stop container: {}", stderr));
        }

        Ok(serde_json::json!({ "status": "stopped", "app_id": app_id }))
    }
}

/// Validate Docker image name format
/// Prevents command injection via malicious image names
fn is_valid_docker_image(image: &str) -> bool {
    // Valid format: [registry/][namespace/]image[:tag][@digest]
    // Examples: nginx:latest, ghcr.io/owner/image:v1.0, docker.io/library/nginx
    
    // Basic validation: no shell metacharacters
    let dangerous_chars = ['&', '|', ';', '`', '$', '(', ')', '<', '>', '\n', '\r'];
    if image.chars().any(|c| dangerous_chars.contains(&c)) {
        return false;
    }
    
    // Must contain at least one alphanumeric character
    if !image.chars().any(|c| c.is_alphanumeric()) {
        return false;
    }
    
    // Length check
    if image.len() > 256 {
        return false;
    }
    
    true
}

/// Get app-specific configuration
/// Returns: (ports, volumes, env_vars, custom_command)
/// TODO: Load from manifest.yml files in apps/ directory
fn get_app_config(app_id: &str) -> (Vec<String>, Vec<String>, Vec<String>, Option<String>) {
    match app_id {
        "homeassistant" | "home-assistant" => (
            vec!["8123:8123".to_string()],
            vec!["/var/lib/archipelago/home-assistant:/config".to_string()],
            vec!["TZ=UTC".to_string()],
            None,
        ),
        "bitcoin" | "bitcoin-core" => (
            vec!["8332:8332".to_string(), "8333:8333".to_string()],
            vec!["/var/lib/archipelago/bitcoin:/bitcoin/.bitcoin".to_string()],
            vec![],
            None,
        ),
        "lnd" => (
            vec!["9735:9735".to_string(), "10009:10009".to_string(), "8080:8080".to_string()],
            vec!["/var/lib/archipelago/lnd:/root/.lnd".to_string()],
            vec!["BITCOIN_ACTIVE=1".to_string()],
            None,
        ),
        "btcpay-server" | "btcpayserver" => (
            vec!["23000:49392".to_string()],
            vec!["/var/lib/archipelago/btcpay:/datadir".to_string()],
            vec![],
            None,
        ),
        "mempool" => (
            vec!["8999:8080".to_string()],
            vec![],
            vec![],
            None,
        ),
        "grafana" => (
            vec!["3000:3000".to_string()],
            vec!["/var/lib/archipelago/grafana:/var/lib/grafana".to_string()],
            vec![],
            None,
        ),
        "searxng" => (
            vec!["8888:8080".to_string()],
            vec![],
            vec![],
            None,
        ),
        "ollama" => (
            vec!["11434:11434".to_string()],
            vec!["/var/lib/archipelago/ollama:/root/.ollama".to_string()],
            vec![],
            None,
        ),
        "onlyoffice" | "onlyoffice-documentserver" => (
            vec!["9980:80".to_string()],
            vec![],
            vec![],
            None,
        ),
        "penpot" | "penpot-frontend" => (
            vec!["9001:80".to_string()],
            vec![],
            vec![],
            None,
        ),
        "nextcloud" => (
            vec!["8081:80".to_string()],
            vec!["/var/lib/archipelago/nextcloud:/var/www/html".to_string()],
            vec![],
            None,
        ),
        "vaultwarden" => (
            vec!["8082:80".to_string()],
            vec!["/var/lib/archipelago/vaultwarden:/data".to_string()],
            vec![],
            None,
        ),
        "jellyfin" => (
            vec!["8096:8096".to_string()],
            vec!["/var/lib/archipelago/jellyfin/config:/config".to_string(), "/var/lib/archipelago/jellyfin/cache:/cache".to_string()],
            vec![],
            None,
        ),
        "photoprism" => (
            vec!["2342:2342".to_string()],
            vec!["/var/lib/archipelago/photoprism:/photoprism/storage".to_string()],
            vec![],
            None,
        ),
        "immich" => (
            vec!["2283:3001".to_string()],
            vec!["/var/lib/archipelago/immich:/usr/src/app/upload".to_string()],
            vec![],
            None,
        ),
        "filebrowser" => (
            vec!["8083:80".to_string()],
            vec!["/var/lib/archipelago/filebrowser:/srv".to_string()],
            vec![],
            None,
        ),
        "nginx-proxy-manager" => (
            vec!["81:81".to_string(), "8084:80".to_string(), "8443:443".to_string()],
            vec![
                "/var/lib/archipelago/nginx-proxy-manager/data:/data".to_string(),
                "/var/lib/archipelago/nginx-proxy-manager/letsencrypt:/etc/letsencrypt".to_string(),
            ],
            vec![],
            None,
        ),
        "portainer" => (
            vec!["9000:9000".to_string()],
            vec!["/var/lib/archipelago/portainer:/data".to_string(), "/var/run/podman/podman.sock:/var/run/docker.sock".to_string()],
            vec![],
            None,
        ),
        "uptime-kuma" => (
            vec!["3001:3001".to_string()],
            vec!["/var/lib/archipelago/uptime-kuma:/app/data".to_string()],
            vec![],
            None,
        ),
        "tailscale" => (
            vec!["8240:8240".to_string()],  // Tailscale web UI port (only used if not host network)
            vec![
                "/var/lib/archipelago/tailscale:/var/lib/tailscale".to_string(),
            ],
            vec![
                "TS_STATE_DIR=/var/lib/tailscale".to_string(),
            ],
            Some("sh -c 'tailscale web --listen 0.0.0.0:8240 & exec tailscaled'".to_string()),
        ),
        "fedimint" => (
            vec!["8173:8173".to_string()],
            vec!["/var/lib/archipelago/fedimint:/data".to_string()],
            vec![
                "FM_BITCOIN_RPC_KIND=bitcoind".to_string(),
                "FM_BITCOIN_RPC_URL=http://host.containers.internal:8332".to_string(),
                "FM_BIND_P2P=0.0.0.0:8173".to_string(),
                "FM_BIND_API=0.0.0.0:8174".to_string(),
            ],
            None,
        ),
        _ => (vec![], vec![], vec![], None),  // No default config, user must configure manually
    }
}