//
//  Copyright 2026 The InfiniFlow Authors. All Rights Reserved.
//
//  Licensed under the Apache License, Version 2.0 (the "License");
//  you may not use this file except in compliance with the License.
//  You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
//

package cli

import (
	"bufio"
	"fmt"
	"os"
	"os/exec"
	"strings"
	"syscall"
	"unsafe"
)

// PasswordPromptFunc is a function type for password input
type PasswordPromptFunc func(prompt string) (string, error)

// RAGFlowClient handles API interactions with the RAGFlow server
type RAGFlowClient struct {
	HTTPClient        *HTTPClient
	ServerType        string           // "admin" or "user"
	PasswordPrompt    PasswordPromptFunc // Function for password input
}

// NewRAGFlowClient creates a new RAGFlow client
func NewRAGFlowClient(serverType string) *RAGFlowClient {
	httpClient := NewHTTPClient()
	// Set port from configuration file based on server type
	if serverType == "admin" {
		httpClient.Port = 9381
	} else {
		httpClient.Port = 9380
	}

	return &RAGFlowClient{
		HTTPClient: httpClient,
		ServerType: serverType,
	}
}

// LoginUserInteractive performs interactive login with username and password
func (c *RAGFlowClient) LoginUserInteractive(username, password string) error {
	// First, ping the server to check if it's available
	// For admin mode, use /admin/ping with useAPIBase=true
	// For user mode, use /system/ping with useAPIBase=false
	var pingPath string
	var useAPIBase bool
	if c.ServerType == "admin" {
		pingPath = "/admin/ping"
		useAPIBase = true
	} else {
		pingPath = "/system/ping"
		useAPIBase = false
	}

	resp, err := c.HTTPClient.Request("GET", pingPath, useAPIBase, "web", nil, nil)
	if err != nil {
		fmt.Printf("Error: %v\n", err)
		fmt.Println("Can't access server for login (connection failed)")
		return err
	}

	if resp.StatusCode != 200 {
		fmt.Println("Server is down")
		return fmt.Errorf("server is down")
	}

	// Check response - admin returns JSON with message "PONG", user returns plain "pong"
	resJSON, err := resp.JSON()
	if err == nil {
		// Admin mode returns {"code":0,"message":"PONG"}
		if msg, ok := resJSON["message"].(string); !ok || msg != "PONG" {
			fmt.Println("Server is down")
			return fmt.Errorf("server is down")
		}
	} else {
		// User mode returns plain "pong"
		if string(resp.Body) != "pong" {
			fmt.Println("Server is down")
			return fmt.Errorf("server is down")
		}
	}

	// If password is not provided, prompt for it
	if password == "" {
		fmt.Printf("password for %s: ", username)
		var err error
		password, err = readPassword()
		if err != nil {
			return fmt.Errorf("failed to read password: %w", err)
		}
		password = strings.TrimSpace(password)
	}

	// Login
	token, err := c.loginUser(username, password)
	if err != nil {
		fmt.Printf("Error: %v\n", err)
		fmt.Println("Can't access server for login (connection failed)")
		return err
	}

	c.HTTPClient.LoginToken = token
	fmt.Printf("Login user %s successfully\n", username)
	return nil
}

// LoginUser performs user login
func (c *RAGFlowClient) LoginUser(cmd *Command) error {
	// First, ping the server to check if it's available
	// For admin mode, use /admin/ping with useAPIBase=true
	// For user mode, use /system/ping with useAPIBase=false
	var pingPath string
	var useAPIBase bool
	if c.ServerType == "admin" {
		pingPath = "/admin/ping"
		useAPIBase = true
	} else {
		pingPath = "/system/ping"
		useAPIBase = false
	}

	resp, err := c.HTTPClient.Request("GET", pingPath, useAPIBase, "web", nil, nil)
	if err != nil {
		fmt.Printf("Error: %v\n", err)
		fmt.Println("Can't access server for login (connection failed)")
		return err
	}

	if resp.StatusCode != 200 {
		fmt.Println("Server is down")
		return fmt.Errorf("server is down")
	}

	// Check response - admin returns JSON with message "PONG", user returns plain "pong"
	resJSON, err := resp.JSON()
	if err == nil {
		// Admin mode returns {"code":0,"message":"PONG"}
		if msg, ok := resJSON["message"].(string); !ok || msg != "PONG" {
			fmt.Println("Server is down")
			return fmt.Errorf("server is down")
		}
	} else {
		// User mode returns plain "pong"
		if string(resp.Body) != "pong" {
			fmt.Println("Server is down")
			return fmt.Errorf("server is down")
		}
	}

	email, ok := cmd.Params["email"].(string)
	if !ok {
		return fmt.Errorf("email not provided")
	}

	// Get password from user input (hidden)
	var password string
	if c.PasswordPrompt != nil {
		pwd, err := c.PasswordPrompt(fmt.Sprintf("password for %s: ", email))
		if err != nil {
			return fmt.Errorf("failed to read password: %w", err)
		}
		password = pwd
	} else {
		fmt.Printf("password for %s: ", email)
		pwd, err := readPassword()
		if err != nil {
			return fmt.Errorf("failed to read password: %w", err)
		}
		password = pwd
	}
	password = strings.TrimSpace(password)

	// Login
	token, err := c.loginUser(email, password)
	if err != nil {
		fmt.Printf("Error: %v\n", err)
		fmt.Println("Can't access server for login (connection failed)")
		return err
	}

	c.HTTPClient.LoginToken = token
	fmt.Printf("Login user %s successfully\n", email)
	return nil
}

// loginUser performs the actual login request
func (c *RAGFlowClient) loginUser(email, password string) (string, error) {
	// Encrypt password using scrypt (same as Python implementation)
	encryptedPassword, err := EncryptPassword(password)
	if err != nil {
		return "", fmt.Errorf("failed to encrypt password: %w", err)
	}

	payload := map[string]interface{}{
		"email":    email,
		"password": encryptedPassword,
	}

	var path string
	if c.ServerType == "admin" {
		path = "/admin/login"
	} else {
		path = "/user/login"
	}

	resp, err := c.HTTPClient.Request("POST", path, c.ServerType == "admin", "", nil, payload)
	if err != nil {
		return "", err
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return "", fmt.Errorf("login failed: invalid JSON response (%w)", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return "", fmt.Errorf("login failed: %s", msg)
	}

	token := resp.Headers.Get("Authorization")
	if token == "" {
		return "", fmt.Errorf("login failed: missing Authorization header")
	}

	return token, nil
}

// PingServer pings the server to check if it's alive
// Returns benchmark result map if iterations > 1, otherwise prints status
func (c *RAGFlowClient) PingServer(cmd *Command) (map[string]interface{}, error) {
	// Get iterations from command params (for benchmark)
	iterations := 1
	if val, ok := cmd.Params["iterations"].(int); ok && val > 1 {
		iterations = val
	}

	if iterations > 1 {
		// Benchmark mode: multiple iterations
		result, err := c.HTTPClient.RequestWithIterations("GET", "/system/ping", false, "web", nil, nil, iterations)
		if err != nil {
			return nil, err
		}
		return result, nil
	}

	// Single ping mode
	resp, err := c.HTTPClient.Request("GET", "/system/ping", false, "web", nil, nil)
	if err != nil {
		fmt.Printf("Error: %v\n", err)
		fmt.Println("Server is down")
		return nil, err
	}

	if resp.StatusCode == 200 && string(resp.Body) == "pong" {
		fmt.Println("Server is alive")
	} else {
		fmt.Printf("Error: %d\n", resp.StatusCode)
	}
	return nil, nil
}

// ListUserDatasets lists datasets for current user (user mode)
// Returns (result_map, error) - result_map is non-nil for benchmark mode
func (c *RAGFlowClient) ListUserDatasets(cmd *Command) (map[string]interface{}, error) {
	if c.ServerType != "user" {
		return nil, fmt.Errorf("this command is only allowed in USER mode")
	}

	// Check for benchmark iterations
	iterations := 1
	if val, ok := cmd.Params["iterations"].(int); ok && val > 1 {
		iterations = val
	}

	if iterations > 1 {
		// Benchmark mode - return raw result for benchmark stats
		return c.HTTPClient.RequestWithIterations("POST", "/kb/list", false, "web", nil, nil, iterations)
	}

	// Normal mode
	resp, err := c.HTTPClient.Request("POST", "/kb/list", false, "web", nil, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to list datasets: %w", err)
	}

	if resp.StatusCode != 200 {
		return nil, fmt.Errorf("failed to list datasets: HTTP %d, body: %s", resp.StatusCode, string(resp.Body))
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return nil, fmt.Errorf("invalid JSON response: %w", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return nil, fmt.Errorf("failed to list datasets: %s", msg)
	}

	data, ok := resJSON["data"].(map[string]interface{})
	if !ok {
		return nil, fmt.Errorf("invalid response format")
	}

	kbs, ok := data["kbs"].([]interface{})
	if !ok {
		return nil, fmt.Errorf("invalid response format: kbs not found")
	}

	// Convert to slice of maps
	tableData := make([]map[string]interface{}, 0, len(kbs))
	for _, kb := range kbs {
		if kbMap, ok := kb.(map[string]interface{}); ok {
			// Remove avatar field
			delete(kbMap, "avatar")
			tableData = append(tableData, kbMap)
		}
	}

	PrintTableSimple(tableData)
	return nil, nil
}

// ListDatasets lists datasets for a specific user (admin mode)
// Returns (result_map, error) - result_map is non-nil for benchmark mode
func (c *RAGFlowClient) ListDatasets(cmd *Command) (map[string]interface{}, error) {
	if c.ServerType != "admin" {
		return nil, fmt.Errorf("this command is only allowed in ADMIN mode")
	}

	userName, ok := cmd.Params["user_name"].(string)
	if !ok {
		return nil, fmt.Errorf("user_name not provided")
	}

	// Check for benchmark iterations
	iterations := 1
	if val, ok := cmd.Params["iterations"].(int); ok && val > 1 {
		iterations = val
	}

	if iterations > 1 {
		// Benchmark mode - return raw result for benchmark stats
		return c.HTTPClient.RequestWithIterations("GET", fmt.Sprintf("/admin/users/%s/datasets", userName), true, "admin", nil, nil, iterations)
	}

	fmt.Printf("Listing all datasets of user: %s\n", userName)

	resp, err := c.HTTPClient.Request("GET", fmt.Sprintf("/admin/users/%s/datasets", userName), true, "admin", nil, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to list datasets: %w", err)
	}

	if resp.StatusCode != 200 {
		return nil, fmt.Errorf("failed to list datasets: HTTP %d, body: %s", resp.StatusCode, string(resp.Body))
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return nil, fmt.Errorf("invalid JSON response: %w", err)
	}

	data, ok := resJSON["data"].([]interface{})
	if !ok {
		return nil, fmt.Errorf("invalid response format")
	}

	// Convert to slice of maps and remove avatar
	tableData := make([]map[string]interface{}, 0, len(data))
	for _, item := range data {
		if itemMap, ok := item.(map[string]interface{}); ok {
			delete(itemMap, "avatar")
			tableData = append(tableData, itemMap)
		}
	}

	PrintTableSimple(tableData)
	return nil, nil
}

// readPassword reads password from terminal without echoing
func readPassword() (string, error) {
	// Check if stdin is a terminal by trying to get terminal size
	if isTerminal() {
		// Use stty to disable echo
		cmd := exec.Command("stty", "-echo")
		cmd.Stdin = os.Stdin
		if err := cmd.Run(); err != nil {
			// Fallback: read normally
			return readPasswordFallback()
		}
		defer func() {
			// Re-enable echo
			cmd := exec.Command("stty", "echo")
			cmd.Stdin = os.Stdin
			cmd.Run()
		}()

		reader := bufio.NewReader(os.Stdin)
		password, err := reader.ReadString('\n')
		fmt.Println() // New line after password input
		if err != nil {
			return "", err
		}
		return strings.TrimSpace(password), nil
	}

	// Fallback for non-terminal input (e.g., piped input)
	return readPasswordFallback()
}

// isTerminal checks if stdin is a terminal
func isTerminal() bool {
	var termios syscall.Termios
	_, _, err := syscall.Syscall6(syscall.SYS_IOCTL, os.Stdin.Fd(), syscall.TCGETS, uintptr(unsafe.Pointer(&termios)), 0, 0, 0)
	return err == 0
}

// readPasswordFallback reads password as plain text (fallback mode)
func readPasswordFallback() (string, error) {
	reader := bufio.NewReader(os.Stdin)
	password, err := reader.ReadString('\n')
	if err != nil {
		return "", err
	}
	return strings.TrimSpace(password), nil
}

// getDatasetID gets dataset ID by name
func (c *RAGFlowClient) getDatasetID(datasetName string) (string, error) {
	resp, err := c.HTTPClient.Request("POST", "/kb/list", false, "web", nil, nil)
	if err != nil {
		return "", fmt.Errorf("failed to list datasets: %w", err)
	}

	if resp.StatusCode != 200 {
		return "", fmt.Errorf("failed to list datasets: HTTP %d", resp.StatusCode)
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return "", fmt.Errorf("invalid JSON response: %w", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return "", fmt.Errorf("failed to list datasets: %s", msg)
	}

	data, ok := resJSON["data"].(map[string]interface{})
	if !ok {
		return "", fmt.Errorf("invalid response format")
	}

	kbs, ok := data["kbs"].([]interface{})
	if !ok {
		return "", fmt.Errorf("invalid response format: kbs not found")
	}

	for _, kb := range kbs {
		if kbMap, ok := kb.(map[string]interface{}); ok {
			if name, _ := kbMap["name"].(string); name == datasetName {
				if id, _ := kbMap["id"].(string); id != "" {
					return id, nil
				}
			}
		}
	}

	return "", fmt.Errorf("dataset '%s' not found", datasetName)
}

// SearchOnDatasets searches for chunks in specified datasets
// Returns (result_map, error) - result_map is non-nil for benchmark mode
func (c *RAGFlowClient) SearchOnDatasets(cmd *Command) (map[string]interface{}, error) {
	if c.ServerType != "user" {
		return nil, fmt.Errorf("this command is only allowed in USER mode")
	}

	question, ok := cmd.Params["question"].(string)
	if !ok {
		return nil, fmt.Errorf("question not provided")
	}

	datasets, ok := cmd.Params["datasets"].(string)
	if !ok {
		return nil, fmt.Errorf("datasets not provided")
	}

	// Parse dataset names (comma-separated) and convert to IDs
	datasetNames := strings.Split(datasets, ",")
	datasetIDs := make([]string, 0, len(datasetNames))
	for _, name := range datasetNames {
		name = strings.TrimSpace(name)
		id, err := c.getDatasetID(name)
		if err != nil {
			return nil, err
		}
		datasetIDs = append(datasetIDs, id)
	}

	// Check for benchmark iterations
	iterations := 1
	if val, ok := cmd.Params["iterations"].(int); ok && val > 1 {
		iterations = val
	}

	payload := map[string]interface{}{
		"kb_id":                    datasetIDs,
		"question":                 question,
		"similarity_threshold":     0.2,
		"vector_similarity_weight": 0.3,
	}

	if iterations > 1 {
		// Benchmark mode - return raw result for benchmark stats
		return c.HTTPClient.RequestWithIterations("POST", "/chunk/retrieval_test", false, "web", nil, payload, iterations)
	}

	// Normal mode
	resp, err := c.HTTPClient.Request("POST", "/chunk/retrieval_test", false, "web", nil, payload)
	if err != nil {
		return nil, fmt.Errorf("failed to search on datasets: %w", err)
	}

	if resp.StatusCode != 200 {
		return nil, fmt.Errorf("failed to search on datasets: HTTP %d, body: %s", resp.StatusCode, string(resp.Body))
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return nil, fmt.Errorf("invalid JSON response: %w", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return nil, fmt.Errorf("failed to search on datasets: %s", msg)
	}

	data, ok := resJSON["data"].(map[string]interface{})
	if !ok {
		return nil, fmt.Errorf("invalid response format")
	}

	chunks, ok := data["chunks"].([]interface{})
	if !ok {
		return nil, fmt.Errorf("invalid response format: chunks not found")
	}

	// Convert to slice of maps for printing
	tableData := make([]map[string]interface{}, 0, len(chunks))
	for _, chunk := range chunks {
		if chunkMap, ok := chunk.(map[string]interface{}); ok {
			row := map[string]interface{}{
				"id":                chunkMap["chunk_id"],
				"content":           chunkMap["content_with_weight"],
				"document_id":       chunkMap["doc_id"],
				"dataset_id":        chunkMap["kb_id"],
				"docnm_kwd":         chunkMap["docnm_kwd"],
				"image_id":          chunkMap["image_id"],
				"similarity":        chunkMap["similarity"],
				"term_similarity":   chunkMap["term_similarity"],
				"vector_similarity": chunkMap["vector_similarity"],
			}
			tableData = append(tableData, row)
		}
	}

	PrintTableSimple(tableData)
	return nil, nil
}

// ExecuteCommand executes a parsed command
// Returns benchmark result map for commands that support it (e.g., ping_server with iterations > 1)
func (c *RAGFlowClient) ExecuteCommand(cmd *Command) (map[string]interface{}, error) {
	switch cmd.Type {
	case "login_user":
		return nil, c.LoginUser(cmd)
	case "ping_server":
		return c.PingServer(cmd)
	case "benchmark":
		return nil, c.RunBenchmark(cmd)
	case "list_user_datasets":
		return c.ListUserDatasets(cmd)
	case "list_datasets":
		return c.ListDatasets(cmd)
	case "search_on_datasets":
		return c.SearchOnDatasets(cmd)
	case "list_users":
		return c.ListUsers(cmd)
	case "grant_admin":
		return nil, c.GrantAdmin(cmd)
	case "revoke_admin":
		return nil, c.RevokeAdmin(cmd)
	case "show_current_user":
		return c.ShowCurrentUser(cmd)
	case "create_user":
		return nil, c.CreateUser(cmd)
	case "activate_user":
		return nil, c.ActivateUser(cmd)
	case "alter_user":
		return nil, c.AlterUserPassword(cmd)
	case "drop_user":
		return nil, c.DropUser(cmd)
	// TODO: Implement other commands
	default:
		return nil, fmt.Errorf("command '%s' would be executed with API", cmd.Type)
	}
}

// ListUsers lists all users (admin mode only)
// Returns (result_map, error) - result_map is non-nil for benchmark mode
func (c *RAGFlowClient) ListUsers(cmd *Command) (map[string]interface{}, error) {
	if c.ServerType != "admin" {
		return nil, fmt.Errorf("this command is only allowed in ADMIN mode")
	}

	// Check for benchmark iterations
	iterations := 1
	if val, ok := cmd.Params["iterations"].(int); ok && val > 1 {
		iterations = val
	}

	if iterations > 1 {
		// Benchmark mode - return raw result for benchmark stats
		return c.HTTPClient.RequestWithIterations("GET", "/admin/users", true, "admin", nil, nil, iterations)
	}

	resp, err := c.HTTPClient.Request("GET", "/admin/users", true, "admin", nil, nil)
	if err != nil {
		return nil, fmt.Errorf("failed to list users: %w", err)
	}

	if resp.StatusCode != 200 {
		return nil, fmt.Errorf("failed to list users: HTTP %d, body: %s", resp.StatusCode, string(resp.Body))
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return nil, fmt.Errorf("invalid JSON response: %w", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return nil, fmt.Errorf("failed to list users: %s", msg)
	}

	data, ok := resJSON["data"].([]interface{})
	if !ok {
		return nil, fmt.Errorf("invalid response format")
	}

	// Convert to slice of maps and remove sensitive fields
	tableData := make([]map[string]interface{}, 0, len(data))
	for _, item := range data {
		if itemMap, ok := item.(map[string]interface{}); ok {
			// Remove sensitive fields
			delete(itemMap, "password")
			delete(itemMap, "access_token")
			tableData = append(tableData, itemMap)
		}
	}

	PrintTableSimple(tableData)
	return nil, nil
}

// GrantAdmin grants admin privileges to a user (admin mode only)
func (c *RAGFlowClient) GrantAdmin(cmd *Command) error {
	if c.ServerType != "admin" {
		return fmt.Errorf("this command is only allowed in ADMIN mode")
	}

	userName, ok := cmd.Params["user_name"].(string)
	if !ok {
		return fmt.Errorf("user_name not provided")
	}

	resp, err := c.HTTPClient.Request("PUT", fmt.Sprintf("/admin/users/%s/admin", userName), true, "admin", nil, nil)
	if err != nil {
		return fmt.Errorf("failed to grant admin: %w", err)
	}

	if resp.StatusCode != 200 {
		return fmt.Errorf("failed to grant admin: HTTP %d, body: %s", resp.StatusCode, string(resp.Body))
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return fmt.Errorf("invalid JSON response: %w", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return fmt.Errorf("failed to grant admin: %s", msg)
	}

	fmt.Printf("Admin role granted to user: %s\n", userName)
	return nil
}

// RevokeAdmin revokes admin privileges from a user (admin mode only)
func (c *RAGFlowClient) RevokeAdmin(cmd *Command) error {
	if c.ServerType != "admin" {
		return fmt.Errorf("this command is only allowed in ADMIN mode")
	}

	userName, ok := cmd.Params["user_name"].(string)
	if !ok {
		return fmt.Errorf("user_name not provided")
	}

	resp, err := c.HTTPClient.Request("DELETE", fmt.Sprintf("/admin/users/%s/admin", userName), true, "admin", nil, nil)
	if err != nil {
		return fmt.Errorf("failed to revoke admin: %w", err)
	}

	if resp.StatusCode != 200 {
		return fmt.Errorf("failed to revoke admin: HTTP %d, body: %s", resp.StatusCode, string(resp.Body))
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return fmt.Errorf("invalid JSON response: %w", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return fmt.Errorf("failed to revoke admin: %s", msg)
	}

	fmt.Printf("Admin role revoked from user: %s\n", userName)
	return nil
}

// ShowCurrentUser shows the current logged-in user information
// TODO: Implement showing current user information when API is available
func (c *RAGFlowClient) ShowCurrentUser(cmd *Command) (map[string]interface{}, error) {
	// TODO: Call the appropriate API to get current user information
	// Currently there is no /admin/user/info or /user/info API available
	// The /admin/auth API only verifies authorization, does not return user info
	return nil, fmt.Errorf("command 'SHOW CURRENT USER' is not yet implemented")
}

// CreateUser creates a new user (admin mode only)
func (c *RAGFlowClient) CreateUser(cmd *Command) error {
	if c.ServerType != "admin" {
		return fmt.Errorf("this command is only allowed in ADMIN mode")
	}

	userName, ok := cmd.Params["user_name"].(string)
	if !ok {
		return fmt.Errorf("user_name not provided")
	}

	password, ok := cmd.Params["password"].(string)
	if !ok {
		return fmt.Errorf("password not provided")
	}

	// Encrypt password using RSA
	encryptedPassword, err := EncryptPassword(password)
	if err != nil {
		return fmt.Errorf("failed to encrypt password: %w", err)
	}

	payload := map[string]interface{}{
		"username": userName,
		"password": encryptedPassword,
		"role":     "user",
	}

	resp, err := c.HTTPClient.Request("POST", "/admin/users", true, "admin", nil, payload)
	if err != nil {
		return fmt.Errorf("failed to create user: %w", err)
	}

	if resp.StatusCode != 200 {
		return fmt.Errorf("failed to create user: HTTP %d, body: %s", resp.StatusCode, string(resp.Body))
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return fmt.Errorf("invalid JSON response: %w", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return fmt.Errorf("failed to create user: %s", msg)
	}

	fmt.Printf("User created successfully: %s\n", userName)
	return nil
}

// ActivateUser activates or deactivates a user (admin mode only)
func (c *RAGFlowClient) ActivateUser(cmd *Command) error {
	if c.ServerType != "admin" {
		return fmt.Errorf("this command is only allowed in ADMIN mode")
	}

	userName, ok := cmd.Params["user_name"].(string)
	if !ok {
		return fmt.Errorf("user_name not provided")
	}

	activateStatus, ok := cmd.Params["activate_status"].(string)
	if !ok {
		return fmt.Errorf("activate_status not provided")
	}

	// Validate activate_status
	if activateStatus != "on" && activateStatus != "off" {
		return fmt.Errorf("activate_status must be 'on' or 'off'")
	}

	payload := map[string]interface{}{
		"activate_status": activateStatus,
	}

	resp, err := c.HTTPClient.Request("PUT", fmt.Sprintf("/admin/users/%s/activate", userName), true, "admin", nil, payload)
	if err != nil {
		return fmt.Errorf("failed to update user activate status: %w", err)
	}

	if resp.StatusCode != 200 {
		return fmt.Errorf("failed to update user activate status: HTTP %d, body: %s", resp.StatusCode, string(resp.Body))
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return fmt.Errorf("invalid JSON response: %w", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return fmt.Errorf("failed to update user activate status: %s", msg)
	}

	fmt.Printf("User '%s' activate status set to '%s'\n", userName, activateStatus)
	return nil
}

// AlterUserPassword changes a user's password (admin mode only)
func (c *RAGFlowClient) AlterUserPassword(cmd *Command) error {
	if c.ServerType != "admin" {
		return fmt.Errorf("this command is only allowed in ADMIN mode")
	}

	userName, ok := cmd.Params["user_name"].(string)
	if !ok {
		return fmt.Errorf("user_name not provided")
	}

	password, ok := cmd.Params["password"].(string)
	if !ok {
		return fmt.Errorf("password not provided")
	}

	// Encrypt password using RSA
	encryptedPassword, err := EncryptPassword(password)
	if err != nil {
		return fmt.Errorf("failed to encrypt password: %w", err)
	}

	payload := map[string]interface{}{
		"new_password": encryptedPassword,
	}

	resp, err := c.HTTPClient.Request("PUT", fmt.Sprintf("/admin/users/%s/password", userName), true, "admin", nil, payload)
	if err != nil {
		return fmt.Errorf("failed to change user password: %w", err)
	}

	if resp.StatusCode != 200 {
		return fmt.Errorf("failed to change user password: HTTP %d, body: %s", resp.StatusCode, string(resp.Body))
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return fmt.Errorf("invalid JSON response: %w", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return fmt.Errorf("failed to change user password: %s", msg)
	}

	fmt.Printf("Password changed for user: %s\n", userName)
	return nil
}

// DropUser deletes a user (admin mode only)
func (c *RAGFlowClient) DropUser(cmd *Command) error {
	if c.ServerType != "admin" {
		return fmt.Errorf("this command is only allowed in ADMIN mode")
	}

	userName, ok := cmd.Params["user_name"].(string)
	if !ok {
		return fmt.Errorf("user_name not provided")
	}

	resp, err := c.HTTPClient.Request("DELETE", fmt.Sprintf("/admin/users/%s", userName), true, "admin", nil, nil)
	if err != nil {
		return fmt.Errorf("failed to delete user: %w", err)
	}

	if resp.StatusCode != 200 {
		return fmt.Errorf("failed to delete user: HTTP %d, body: %s", resp.StatusCode, string(resp.Body))
	}

	resJSON, err := resp.JSON()
	if err != nil {
		return fmt.Errorf("invalid JSON response: %w", err)
	}

	code, ok := resJSON["code"].(float64)
	if !ok || code != 0 {
		msg, _ := resJSON["message"].(string)
		return fmt.Errorf("failed to delete user: %s", msg)
	}

	fmt.Printf("User deleted: %s\n", userName)
	return nil
}