//go:build mcp_http

package main

import (
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"os"
	"path/filepath"
	"strconv"
	"time"

	"git.teamworkapps.com/shortcut/cremote/client"
)

// DebugLogger handles debug logging to file
type DebugLogger struct {
	file   *os.File
	logger *log.Logger
}

// NewDebugLogger creates a new debug logger
func NewDebugLogger() (*DebugLogger, error) {
	logDir := "/tmp/cremote-mcp-logs"
	if err := os.MkdirAll(logDir, 0755); err != nil {
		return nil, fmt.Errorf("failed to create log directory: %w", err)
	}

	logFile := filepath.Join(logDir, fmt.Sprintf("mcp-http-%d.log", time.Now().Unix()))
	file, err := os.OpenFile(logFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
	if err != nil {
		return nil, fmt.Errorf("failed to open log file: %w", err)
	}

	logger := log.New(file, "", log.LstdFlags|log.Lmicroseconds|log.Lshortfile)
	logger.Printf("=== MCP HTTP Server Debug Log Started ===")

	return &DebugLogger{
		file:   file,
		logger: logger,
	}, nil
}

// Log writes a debug message
func (d *DebugLogger) Log(format string, args ...interface{}) {
	if d != nil && d.logger != nil {
		d.logger.Printf(format, args...)
	}
}

// LogJSON logs a JSON object with a label
func (d *DebugLogger) LogJSON(label string, obj interface{}) {
	if d != nil && d.logger != nil {
		jsonBytes, err := json.MarshalIndent(obj, "", "  ")
		if err != nil {
			d.logger.Printf("%s: JSON marshal error: %v", label, err)
		} else {
			d.logger.Printf("%s:\n%s", label, string(jsonBytes))
		}
	}
}

// Close closes the debug logger
func (d *DebugLogger) Close() {
	if d != nil && d.file != nil {
		d.logger.Printf("=== MCP HTTP Server Debug Log Ended ===")
		d.file.Close()
	}
}

var debugLogger *DebugLogger

// MCPServer wraps the cremote client with MCP protocol
type MCPServer struct {
	client      *client.Client
	currentTab  string
	tabHistory  []string
	iframeMode  bool
	lastError   string
	screenshots []string
}

// MCPRequest represents an incoming MCP request
type MCPRequest struct {
	Method string                 `json:"method"`
	Params map[string]interface{} `json:"params"`
	ID     interface{}            `json:"id"`
}

// MCPResponse represents an MCP response
type MCPResponse struct {
	Result interface{} `json:"result,omitempty"`
	Error  *MCPError   `json:"error,omitempty"`
	ID     interface{} `json:"id"`
}

// MCPError represents an MCP error
type MCPError struct {
	Code    int    `json:"code"`
	Message string `json:"message"`
}

// ToolResult represents the result of a tool execution
type ToolResult struct {
	Success    bool              `json:"success"`
	Data       interface{}       `json:"data,omitempty"`
	Screenshot string            `json:"screenshot,omitempty"`
	CurrentTab string            `json:"current_tab,omitempty"`
	TabHistory []string          `json:"tab_history,omitempty"`
	IframeMode bool              `json:"iframe_mode"`
	Error      string            `json:"error,omitempty"`
	Metadata   map[string]string `json:"metadata,omitempty"`
}

// NewMCPServer creates a new MCP server instance
func NewMCPServer(host string, port int) *MCPServer {
	return &MCPServer{
		client:      client.NewClient(host, port),
		tabHistory:  make([]string, 0),
		screenshots: make([]string, 0),
	}
}

// HandleRequest processes an MCP request
func (s *MCPServer) HandleRequest(req MCPRequest) MCPResponse {
	debugLogger.Log("HandleRequest called with method: %s, ID: %v", req.Method, req.ID)
	debugLogger.LogJSON("Incoming Request", req)

	var resp MCPResponse

	switch req.Method {
	case "initialize":
		debugLogger.Log("Handling initialize request")
		resp = s.handleInitialize(req)
	case "tools/list":
		debugLogger.Log("Handling tools/list request")
		resp = s.handleToolsList(req)
	case "tools/call":
		debugLogger.Log("Handling tools/call request")
		resp = s.handleToolCall(req)
	default:
		debugLogger.Log("Unknown method: %s", req.Method)
		resp = MCPResponse{
			Error: &MCPError{Code: -32601, Message: "Method not found"},
			ID:    req.ID,
		}
	}

	debugLogger.LogJSON("Response", resp)
	debugLogger.Log("HandleRequest completed for method: %s", req.Method)
	return resp
}

// handleInitialize handles the MCP initialize request
func (s *MCPServer) handleInitialize(req MCPRequest) MCPResponse {
	return MCPResponse{
		Result: map[string]interface{}{
			"protocolVersion": "2024-11-05",
			"capabilities": map[string]interface{}{
				"tools": map[string]interface{}{
					"listChanged": true,
				},
			},
			"serverInfo": map[string]interface{}{
				"name":    "cremote-mcp",
				"version": "1.0.0",
			},
		},
		ID: req.ID,
	}
}

// handleToolsList returns the list of available tools
func (s *MCPServer) handleToolsList(req MCPRequest) MCPResponse {
	tools := []map[string]interface{}{
		{
			"name":        "web_navigate",
			"description": "Navigate to a URL and optionally take a screenshot",
			"inputSchema": map[string]interface{}{
				"type": "object",
				"properties": map[string]interface{}{
					"url":        map[string]interface{}{"type": "string", "description": "URL to navigate to"},
					"tab":        map[string]interface{}{"type": "string", "description": "Tab ID (optional, uses current tab)"},
					"screenshot": map[string]interface{}{"type": "boolean", "description": "Take screenshot after navigation"},
					"timeout":    map[string]interface{}{"type": "integer", "description": "Timeout in seconds", "default": 5},
				},
				"required": []string{"url"},
			},
		},
		{
			"name":        "web_interact",
			"description": "Interact with web elements (click, fill, submit)",
			"inputSchema": map[string]interface{}{
				"type": "object",
				"properties": map[string]interface{}{
					"action":   map[string]interface{}{"type": "string", "enum": []string{"click", "fill", "submit", "upload"}},
					"selector": map[string]interface{}{"type": "string", "description": "CSS selector for the element"},
					"value":    map[string]interface{}{"type": "string", "description": "Value to fill (for fill/upload actions)"},
					"tab":      map[string]interface{}{"type": "string", "description": "Tab ID (optional)"},
					"timeout":  map[string]interface{}{"type": "integer", "description": "Timeout in seconds", "default": 5},
				},
				"required": []string{"action", "selector"},
			},
		},
		{
			"name":        "web_extract",
			"description": "Extract data from the page (source, element HTML, or execute JavaScript)",
			"inputSchema": map[string]interface{}{
				"type": "object",
				"properties": map[string]interface{}{
					"type":     map[string]interface{}{"type": "string", "enum": []string{"source", "element", "javascript"}},
					"selector": map[string]interface{}{"type": "string", "description": "CSS selector (for element type)"},
					"code":     map[string]interface{}{"type": "string", "description": "JavaScript code (for javascript type)"},
					"tab":      map[string]interface{}{"type": "string", "description": "Tab ID (optional)"},
					"timeout":  map[string]interface{}{"type": "integer", "description": "Timeout in seconds", "default": 5},
				},
				"required": []string{"type"},
			},
		},
		{
			"name":        "web_screenshot",
			"description": "Take a screenshot of the current page",
			"inputSchema": map[string]interface{}{
				"type": "object",
				"properties": map[string]interface{}{
					"output":    map[string]interface{}{"type": "string", "description": "Output file path"},
					"full_page": map[string]interface{}{"type": "boolean", "description": "Capture full page", "default": false},
					"tab":       map[string]interface{}{"type": "string", "description": "Tab ID (optional)"},
					"timeout":   map[string]interface{}{"type": "integer", "description": "Timeout in seconds", "default": 5},
				},
				"required": []string{"output"},
			},
		},
		{
			"name":        "web_manage_tabs",
			"description": "Manage browser tabs (open, close, list, switch)",
			"inputSchema": map[string]interface{}{
				"type": "object",
				"properties": map[string]interface{}{
					"action":  map[string]interface{}{"type": "string", "enum": []string{"open", "close", "list", "switch"}},
					"tab":     map[string]interface{}{"type": "string", "description": "Tab ID (for close/switch actions)"},
					"timeout": map[string]interface{}{"type": "integer", "description": "Timeout in seconds", "default": 5},
				},
				"required": []string{"action"},
			},
		},
		{
			"name":        "web_iframe",
			"description": "Switch iframe context for subsequent operations",
			"inputSchema": map[string]interface{}{
				"type": "object",
				"properties": map[string]interface{}{
					"action":   map[string]interface{}{"type": "string", "enum": []string{"enter", "exit"}},
					"selector": map[string]interface{}{"type": "string", "description": "Iframe CSS selector (for enter action)"},
					"tab":      map[string]interface{}{"type": "string", "description": "Tab ID (optional)"},
				},
				"required": []string{"action"},
			},
		},
	}

	return MCPResponse{
		Result: map[string]interface{}{"tools": tools},
		ID:     req.ID,
	}
}

// handleToolCall executes a tool call
func (s *MCPServer) handleToolCall(req MCPRequest) MCPResponse {
	params, ok := req.Params["arguments"].(map[string]interface{})
	if !ok {
		return MCPResponse{
			Error: &MCPError{Code: -32602, Message: "Invalid parameters"},
			ID:    req.ID,
		}
	}

	toolName, ok := req.Params["name"].(string)
	if !ok {
		return MCPResponse{
			Error: &MCPError{Code: -32602, Message: "Tool name required"},
			ID:    req.ID,
		}
	}

	var result ToolResult
	var err error

	switch toolName {
	case "web_navigate":
		result, err = s.handleNavigate(params)
	case "web_interact":
		result, err = s.handleInteract(params)
	case "web_extract":
		result, err = s.handleExtract(params)
	case "web_screenshot":
		result, err = s.handleScreenshot(params)
	case "web_manage_tabs":
		result, err = s.handleManageTabs(params)
	case "web_iframe":
		result, err = s.handleIframe(params)
	default:
		return MCPResponse{
			Error: &MCPError{Code: -32601, Message: "Unknown tool: " + toolName},
			ID:    req.ID,
		}
	}

	if err != nil {
		result.Success = false
		result.Error = err.Error()
		s.lastError = err.Error()
	}

	// Always include current state in response
	result.CurrentTab = s.currentTab
	result.TabHistory = s.tabHistory
	result.IframeMode = s.iframeMode

	return MCPResponse{
		Result: result,
		ID:     req.ID,
	}
}

// Helper function to get string parameter with default
func getStringParam(params map[string]interface{}, key, defaultValue string) string {
	if val, ok := params[key].(string); ok {
		return val
	}
	return defaultValue
}

// Helper function to get int parameter with default
func getIntParam(params map[string]interface{}, key string, defaultValue int) int {
	if val, ok := params[key].(float64); ok {
		return int(val)
	}
	if val, ok := params[key].(int); ok {
		return val
	}
	return defaultValue
}

// Helper function to get bool parameter with default
func getBoolParam(params map[string]interface{}, key string, defaultValue bool) bool {
	if val, ok := params[key].(bool); ok {
		return val
	}
	return defaultValue
}

// Helper function to resolve tab ID
func (s *MCPServer) resolveTabID(tabParam string) string {
	if tabParam != "" {
		return tabParam
	}
	return s.currentTab
}

// handleNavigate handles web navigation
func (s *MCPServer) handleNavigate(params map[string]interface{}) (ToolResult, error) {
	url := getStringParam(params, "url", "")
	if url == "" {
		return ToolResult{}, fmt.Errorf("url parameter is required")
	}

	tab := getStringParam(params, "tab", "")
	timeout := getIntParam(params, "timeout", 5)
	takeScreenshot := getBoolParam(params, "screenshot", false)

	// If no tab specified and we don't have a current tab, open one
	if tab == "" && s.currentTab == "" {
		newTab, err := s.client.OpenTab(timeout)
		if err != nil {
			return ToolResult{}, fmt.Errorf("failed to open new tab: %w", err)
		}
		s.currentTab = newTab
		s.tabHistory = append(s.tabHistory, newTab)
		tab = newTab
	} else if tab == "" {
		tab = s.currentTab
	}

	// Load the URL
	err := s.client.LoadURL(tab, url, timeout)
	if err != nil {
		return ToolResult{}, fmt.Errorf("failed to load URL: %w", err)
	}

	result := ToolResult{
		Success: true,
		Data:    map[string]string{"url": url, "tab": tab},
	}

	// Take screenshot if requested
	if takeScreenshot {
		screenshotPath := fmt.Sprintf("/tmp/navigate-%d.png", time.Now().Unix())
		err = s.client.TakeScreenshot(tab, screenshotPath, false, timeout)
		if err == nil {
			result.Screenshot = screenshotPath
			s.screenshots = append(s.screenshots, screenshotPath)
		}
	}

	return result, nil
}

// handleInteract handles web element interactions
func (s *MCPServer) handleInteract(params map[string]interface{}) (ToolResult, error) {
	action := getStringParam(params, "action", "")
	selector := getStringParam(params, "selector", "")
	value := getStringParam(params, "value", "")
	tab := s.resolveTabID(getStringParam(params, "tab", ""))
	timeout := getIntParam(params, "timeout", 5)

	if action == "" || selector == "" {
		return ToolResult{}, fmt.Errorf("action and selector parameters are required")
	}

	if tab == "" {
		return ToolResult{}, fmt.Errorf("no active tab available")
	}

	var err error
	result := ToolResult{Success: true}

	switch action {
	case "click":
		err = s.client.ClickElement(tab, selector, timeout, timeout)
		result.Data = map[string]string{"action": "clicked", "selector": selector}

	case "fill":
		if value == "" {
			return ToolResult{}, fmt.Errorf("value parameter is required for fill action")
		}
		err = s.client.FillFormField(tab, selector, value, timeout, timeout)
		result.Data = map[string]string{"action": "filled", "selector": selector, "value": value}

	case "submit":
		err = s.client.SubmitForm(tab, selector, timeout, timeout)
		result.Data = map[string]string{"action": "submitted", "selector": selector}

	case "upload":
		if value == "" {
			return ToolResult{}, fmt.Errorf("value parameter (file path) is required for upload action")
		}
		err = s.client.UploadFile(tab, selector, value, timeout, timeout)
		result.Data = map[string]string{"action": "uploaded", "selector": selector, "file": value}

	default:
		return ToolResult{}, fmt.Errorf("unknown action: %s", action)
	}

	if err != nil {
		return ToolResult{}, fmt.Errorf("failed to %s element: %w", action, err)
	}

	return result, nil
}

// handleExtract handles data extraction from pages
func (s *MCPServer) handleExtract(params map[string]interface{}) (ToolResult, error) {
	extractType := getStringParam(params, "type", "")
	selector := getStringParam(params, "selector", "")
	code := getStringParam(params, "code", "")
	tab := s.resolveTabID(getStringParam(params, "tab", ""))
	timeout := getIntParam(params, "timeout", 5)

	if extractType == "" {
		return ToolResult{}, fmt.Errorf("type parameter is required")
	}

	if tab == "" {
		return ToolResult{}, fmt.Errorf("no active tab available")
	}

	var data interface{}
	var err error

	switch extractType {
	case "source":
		data, err = s.client.GetPageSource(tab, timeout)

	case "element":
		if selector == "" {
			return ToolResult{}, fmt.Errorf("selector parameter is required for element extraction")
		}
		data, err = s.client.GetElementHTML(tab, selector, timeout)

	case "javascript":
		if code == "" {
			return ToolResult{}, fmt.Errorf("code parameter is required for javascript extraction")
		}
		data, err = s.client.EvalJS(tab, code, timeout)

	default:
		return ToolResult{}, fmt.Errorf("unknown extraction type: %s", extractType)
	}

	if err != nil {
		return ToolResult{}, fmt.Errorf("failed to extract %s: %w", extractType, err)
	}

	return ToolResult{
		Success: true,
		Data:    data,
		Metadata: map[string]string{
			"type":     extractType,
			"selector": selector,
		},
	}, nil
}

// handleScreenshot handles screenshot capture
func (s *MCPServer) handleScreenshot(params map[string]interface{}) (ToolResult, error) {
	output := getStringParam(params, "output", "")
	if output == "" {
		output = fmt.Sprintf("/tmp/screenshot-%d.png", time.Now().Unix())
	}

	tab := s.resolveTabID(getStringParam(params, "tab", ""))
	fullPage := getBoolParam(params, "full_page", false)
	timeout := getIntParam(params, "timeout", 5)

	if tab == "" {
		return ToolResult{}, fmt.Errorf("no active tab available")
	}

	err := s.client.TakeScreenshot(tab, output, fullPage, timeout)
	if err != nil {
		return ToolResult{}, fmt.Errorf("failed to take screenshot: %w", err)
	}

	s.screenshots = append(s.screenshots, output)

	return ToolResult{
		Success:    true,
		Screenshot: output,
		Data: map[string]interface{}{
			"output":    output,
			"full_page": fullPage,
			"tab":       tab,
		},
	}, nil
}

// handleManageTabs handles tab management operations
func (s *MCPServer) handleManageTabs(params map[string]interface{}) (ToolResult, error) {
	action := getStringParam(params, "action", "")
	tab := getStringParam(params, "tab", "")
	timeout := getIntParam(params, "timeout", 5)

	if action == "" {
		return ToolResult{}, fmt.Errorf("action parameter is required")
	}

	var data interface{}
	var err error

	switch action {
	case "open":
		newTab, err := s.client.OpenTab(timeout)
		if err != nil {
			return ToolResult{}, fmt.Errorf("failed to open tab: %w", err)
		}
		s.currentTab = newTab
		s.tabHistory = append(s.tabHistory, newTab)
		data = map[string]string{"tab": newTab, "action": "opened"}

	case "close":
		targetTab := s.resolveTabID(tab)
		if targetTab == "" {
			return ToolResult{}, fmt.Errorf("no tab to close")
		}
		err = s.client.CloseTab(targetTab, timeout)
		if err != nil {
			return ToolResult{}, fmt.Errorf("failed to close tab: %w", err)
		}
		// Remove from history and update current tab
		s.removeTabFromHistory(targetTab)
		data = map[string]string{"tab": targetTab, "action": "closed"}

	case "list":
		tabs, err := s.client.ListTabs()
		if err != nil {
			return ToolResult{}, fmt.Errorf("failed to list tabs: %w", err)
		}
		data = tabs

	case "switch":
		if tab == "" {
			return ToolResult{}, fmt.Errorf("tab parameter is required for switch action")
		}
		s.currentTab = tab
		// Move to end of history if it exists, otherwise add it
		s.removeTabFromHistory(tab)
		s.tabHistory = append(s.tabHistory, tab)
		data = map[string]string{"tab": tab, "action": "switched"}

	default:
		return ToolResult{}, fmt.Errorf("unknown tab action: %s", action)
	}

	if err != nil {
		return ToolResult{}, err
	}

	return ToolResult{
		Success: true,
		Data:    data,
	}, nil
}

// handleIframe handles iframe context switching
func (s *MCPServer) handleIframe(params map[string]interface{}) (ToolResult, error) {
	action := getStringParam(params, "action", "")
	selector := getStringParam(params, "selector", "")
	tab := s.resolveTabID(getStringParam(params, "tab", ""))

	if action == "" {
		return ToolResult{}, fmt.Errorf("action parameter is required")
	}

	if tab == "" {
		return ToolResult{}, fmt.Errorf("no active tab available")
	}

	var err error
	var data map[string]string

	switch action {
	case "enter":
		if selector == "" {
			return ToolResult{}, fmt.Errorf("selector parameter is required for enter action")
		}
		err = s.client.SwitchToIframe(tab, selector, 5) // Default 5 second timeout
		s.iframeMode = true
		data = map[string]string{"action": "entered", "selector": selector}

	case "exit":
		err = s.client.SwitchToMain(tab)
		s.iframeMode = false
		data = map[string]string{"action": "exited"}

	default:
		return ToolResult{}, fmt.Errorf("unknown iframe action: %s", action)
	}

	if err != nil {
		return ToolResult{}, fmt.Errorf("failed to %s iframe: %w", action, err)
	}

	return ToolResult{
		Success: true,
		Data:    data,
	}, nil
}

// Helper function to remove tab from history
func (s *MCPServer) removeTabFromHistory(tabID string) {
	for i, id := range s.tabHistory {
		if id == tabID {
			s.tabHistory = append(s.tabHistory[:i], s.tabHistory[i+1:]...)
			break
		}
	}
	// If we removed the current tab, set current to the last in history
	if s.currentTab == tabID {
		if len(s.tabHistory) > 0 {
			s.currentTab = s.tabHistory[len(s.tabHistory)-1]
		} else {
			s.currentTab = ""
		}
	}
}

// HTTP handler for MCP requests
func (s *MCPServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	debugLogger.Log("ServeHTTP: Received %s request from %s", r.Method, r.RemoteAddr)
	debugLogger.Log("ServeHTTP: Request URL: %s", r.URL.String())
	debugLogger.Log("ServeHTTP: Request headers: %v", r.Header)

	// Set CORS headers for browser compatibility
	w.Header().Set("Access-Control-Allow-Origin", "*")
	w.Header().Set("Access-Control-Allow-Methods", "POST, OPTIONS")
	w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
	w.Header().Set("Content-Type", "application/json")

	// Handle preflight requests
	if r.Method == "OPTIONS" {
		debugLogger.Log("ServeHTTP: Handling OPTIONS preflight request")
		w.WriteHeader(http.StatusOK)
		return
	}

	// Only accept POST requests
	if r.Method != "POST" {
		debugLogger.Log("ServeHTTP: Method not allowed: %s", r.Method)
		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
		return
	}

	// Read and decode the request
	var req MCPRequest
	decoder := json.NewDecoder(r.Body)
	if err := decoder.Decode(&req); err != nil {
		debugLogger.Log("ServeHTTP: Error decoding request: %v", err)
		log.Printf("Error decoding request: %v", err)
		http.Error(w, "Invalid JSON", http.StatusBadRequest)
		return
	}

	debugLogger.LogJSON("HTTP Request", req)
	log.Printf("Processing HTTP request: %s (ID: %v)", req.Method, req.ID)

	// Handle the request
	resp := s.HandleRequest(req)

	debugLogger.LogJSON("HTTP Response", resp)

	// Encode and send the response
	encoder := json.NewEncoder(w)
	if err := encoder.Encode(resp); err != nil {
		debugLogger.Log("ServeHTTP: Error encoding response: %v", err)
		log.Printf("Error encoding response: %v", err)
		http.Error(w, "Internal server error", http.StatusInternalServerError)
		return
	}

	debugLogger.Log("ServeHTTP: Response sent successfully for request: %s", req.Method)
	log.Printf("Completed HTTP request: %s", req.Method)
}

func main() {
	// Initialize debug logger
	var err error
	debugLogger, err = NewDebugLogger()
	if err != nil {
		log.Printf("Warning: Failed to initialize debug logger: %v", err)
		// Continue without debug logging
	} else {
		defer debugLogger.Close()
		debugLogger.Log("MCP HTTP Server starting up")
	}

	// Get cremote daemon connection settings
	cremoteHost := os.Getenv("CREMOTE_HOST")
	if cremoteHost == "" {
		cremoteHost = "localhost"
	}

	cremotePortStr := os.Getenv("CREMOTE_PORT")
	cremotePort := 8989
	if cremotePortStr != "" {
		if p, err := strconv.Atoi(cremotePortStr); err == nil {
			cremotePort = p
		}
	}

	// Get HTTP server settings
	httpHost := os.Getenv("MCP_HOST")
	if httpHost == "" {
		httpHost = "localhost"
	}

	httpPortStr := os.Getenv("MCP_PORT")
	httpPort := 8990
	if httpPortStr != "" {
		if p, err := strconv.Atoi(httpPortStr); err == nil {
			httpPort = p
		}
	}

	debugLogger.Log("HTTP server will listen on %s:%d", httpHost, httpPort)
	debugLogger.Log("Connecting to cremote daemon at %s:%d", cremoteHost, cremotePort)

	log.Printf("Starting MCP HTTP server on %s:%d", httpHost, httpPort)
	log.Printf("Connecting to cremote daemon at %s:%d", cremoteHost, cremotePort)

	// Create the MCP server
	mcpServer := NewMCPServer(cremoteHost, cremotePort)

	// Set up HTTP routes
	http.Handle("/mcp", mcpServer)

	// Health check endpoint
	http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/json")
		json.NewEncoder(w).Encode(map[string]string{
			"status":       "healthy",
			"cremote_host": cremoteHost,
			"cremote_port": strconv.Itoa(cremotePort),
		})
	})

	// Root endpoint with basic info
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Content-Type", "application/json")
		json.NewEncoder(w).Encode(map[string]interface{}{
			"service": "Cremote MCP Server",
			"version": "1.0.0",
			"endpoints": map[string]string{
				"mcp":    "/mcp",
				"health": "/health",
			},
			"cremote_daemon": fmt.Sprintf("%s:%d", cremoteHost, cremotePort),
		})
	})

	// Start the HTTP server
	addr := fmt.Sprintf("%s:%d", httpHost, httpPort)
	log.Printf("MCP HTTP server listening on http://%s", addr)
	log.Printf("MCP endpoint: http://%s/mcp", addr)
	log.Printf("Health check: http://%s/health", addr)

	if err := http.ListenAndServe(addr, nil); err != nil {
		log.Fatalf("HTTP server failed: %v", err)
	}
}