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/**
 * RAG 검색 챗봇 μž₯치 μ œμ–΄ JavaScript (포트 μŠ€μΊ” κΈ°λŠ₯ 좔가됨)
 */

// μž₯치 μ œμ–΄ λͺ¨λ“ˆ
const DeviceControl = {
    // μž₯치 μ œμ–΄ μƒνƒœ
    isConnected: false,
    isStatusChecked: false,
    isLoadingPrograms: false,
    programsList: [],

    // DOM μš”μ†Œλ“€
    elements: {
        // νƒ­ 및 μ„Ήμ…˜
        deviceTab: null,
        deviceSection: null,

        // μ—°κ²° κ΄€λ ¨
        deviceServerUrlInput: null,
        connectDeviceServerBtn: null,
        deviceConnectionStatus: null,

        // κΈ°λ³Έ κΈ°λŠ₯
        deviceBasicFunctions: null,
        checkDeviceStatusBtn: null,
        deviceStatusResult: null,

        // ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ (미리 μ •μ˜λœ)
        deviceProgramControl: null,
        getProgramsBtn: null,
        programsList: null,
        programSelectDropdown: null,
        executeProgramBtn: null,
        executeResult: null,

        // μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰
        deviceCustomControl: null,
        customCommandInput: null,
        executeCustomBtn: null,
        customExecuteResult: null,

        // ================== 포트 μŠ€μΊ” μš”μ†Œ μΆ”κ°€ ==================
        devicePortScanControl: null, // 포트 μŠ€μΊ” μ„Ήμ…˜ μ»¨ν…Œμ΄λ„ˆ
        scanPortsBtn: null,          // 포트 μŠ€μΊ” λ²„νŠΌ
        portsStatus: null,           // 포트 μŠ€μΊ” μƒνƒœ ν‘œμ‹œ μ˜μ—­
        portsResults: null           // 포트 μŠ€μΊ” κ²°κ³Ό ν‘œμ‹œ μ˜μ—­
        // ================== μΆ”κ°€ 끝 ============================
    },

    // λͺ¨λ“ˆ μ΄ˆκΈ°ν™”
    init: function() {
        console.log('μž₯치 μ œμ–΄ λͺ¨λ“ˆ μ΄ˆκΈ°ν™” 쀑...');
        this.initElements();
        this.initEventListeners();
        console.log('μž₯치 μ œμ–΄ λͺ¨λ“ˆ μ΄ˆκΈ°ν™” μ™„λ£Œ');
    },

    // DOM μš”μ†Œ μ°Έμ‘° μ΄ˆκΈ°ν™”
    initElements: function() {
        // νƒ­ 및 μ„Ήμ…˜
        this.elements.deviceTab = document.getElementById('deviceTab');
        this.elements.deviceSection = document.getElementById('deviceSection');

        // μ—°κ²° κ΄€λ ¨
        this.elements.deviceServerUrlInput = document.getElementById('deviceServerUrlInput');
        this.elements.connectDeviceServerBtn = document.getElementById('connectDeviceServerBtn');
        this.elements.deviceConnectionStatus = document.getElementById('deviceConnectionStatus');

        // κΈ°λ³Έ κΈ°λŠ₯
        this.elements.deviceBasicFunctions = document.getElementById('deviceBasicFunctions');
        this.elements.checkDeviceStatusBtn = document.getElementById('checkDeviceStatusBtn');
        this.elements.deviceStatusResult = document.getElementById('deviceStatusResult');

        // ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ (미리 μ •μ˜λœ)
        this.elements.deviceProgramControl = document.getElementById('deviceProgramControl');
        this.elements.getProgramsBtn = document.getElementById('getProgramsBtn');
        this.elements.programsList = document.getElementById('programsList');
        this.elements.programSelectDropdown = document.getElementById('programSelectDropdown');
        this.elements.executeProgramBtn = document.getElementById('executeProgramBtn');
        this.elements.executeResult = document.getElementById('executeResult');

        // μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰
        this.elements.deviceCustomControl = document.getElementById('deviceCustomControl');
        this.elements.customCommandInput = document.getElementById('customCommandInput');
        this.elements.executeCustomBtn = document.getElementById('executeCustomBtn');
        this.elements.customExecuteResult = document.getElementById('customExecuteResult');

        // ================== 포트 μŠ€μΊ” μš”μ†Œ μ΄ˆκΈ°ν™” μΆ”κ°€ ==================
        this.elements.devicePortScanControl = document.getElementById('devicePortScanControl');
        this.elements.scanPortsBtn = document.getElementById('scanPortsBtn');
        this.elements.portsStatus = document.getElementById('portsStatus');
        this.elements.portsResults = document.getElementById('portsResults');
        // ================== μΆ”κ°€ 끝 =================================

        console.log('μž₯치 μ œμ–΄ DOM μš”μ†Œ μ°Έμ‘° μ΄ˆκΈ°ν™” μ™„λ£Œ');
    },

    // 이벀트 λ¦¬μŠ€λ„ˆ 등둝
    initEventListeners: function() {
        // νƒ­ μ „ν™˜
        if (this.elements.deviceTab) {
            this.elements.deviceTab.addEventListener('click', () => {
                console.log('μž₯치 μ œμ–΄ νƒ­ 클릭');
                this.switchToDeviceTab();
            });
        }

        // μ„œλ²„ μ—°κ²°
        if (this.elements.connectDeviceServerBtn) {
            this.elements.connectDeviceServerBtn.addEventListener('click', () => {
                console.log('μž₯치 μ„œλ²„ μ—°κ²° λ²„νŠΌ 클릭');
                this.connectServer();
            });
        }

        // μ—”ν„° ν‚€λ‘œ μ—°κ²°
        if (this.elements.deviceServerUrlInput) {
            this.elements.deviceServerUrlInput.addEventListener('keydown', (event) => {
                if (event.key === 'Enter') {
                    console.log('μž₯치 μ„œλ²„ URL μž…λ ₯ ν•„λ“œμ—μ„œ μ—”ν„° ν‚€ 감지');
                    event.preventDefault();
                    this.connectServer();
                }
            });
        }

        // μž₯치 μƒνƒœ 확인
        if (this.elements.checkDeviceStatusBtn) {
            this.elements.checkDeviceStatusBtn.addEventListener('click', () => {
                console.log('μž₯치 μƒνƒœ 확인 λ²„νŠΌ 클릭');
                this.checkDeviceStatus();
            });
        }

        // ν”„λ‘œκ·Έλž¨ λͺ©λ‘ 쑰회
        if (this.elements.getProgramsBtn) {
            this.elements.getProgramsBtn.addEventListener('click', () => {
                console.log('ν”„λ‘œκ·Έλž¨ λͺ©λ‘ μƒˆλ‘œκ³ μΉ¨ λ²„νŠΌ 클릭');
                this.loadProgramsList();
            });
        }

        // ν”„λ‘œκ·Έλž¨ 선택 λ³€κ²½
        if (this.elements.programSelectDropdown) {
            this.elements.programSelectDropdown.addEventListener('change', (event) => {
                console.log(`ν”„λ‘œκ·Έλž¨ 선택 λ³€κ²½: ${event.target.value}`);
                this.updateExecuteButton();
            });
        }

        // ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ (미리 μ •μ˜λœ)
        if (this.elements.executeProgramBtn) {
            this.elements.executeProgramBtn.addEventListener('click', () => {
                const programId = this.elements.programSelectDropdown.value;
                console.log(`미리 μ •μ˜λœ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ λ²„νŠΌ 클릭, μ„ νƒλœ ID: ${programId}`);
                this.executeProgram(programId);
            });
        }

        // μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ λ²„νŠΌ 클릭
        if (this.elements.executeCustomBtn) {
            this.elements.executeCustomBtn.addEventListener('click', () => {
                const command = this.elements.customCommandInput.value;
                console.log(`μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ λ²„νŠΌ 클릭, λͺ…λ Ήμ–΄: ${command}`);
                this.executeCustomProgram(command);
            });
        }

        // μ—”ν„° ν‚€λ‘œ μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰
        if (this.elements.customCommandInput) {
            this.elements.customCommandInput.addEventListener('keydown', (event) => {
                if (event.key === 'Enter') {
                    console.log('μ‚¬μš©μž μ •μ˜ λͺ…λ Ήμ–΄ μž…λ ₯ ν•„λ“œμ—μ„œ μ—”ν„° ν‚€ 감지');
                    event.preventDefault(); // 폼 제좜 λ°©μ§€ λ“± κΈ°λ³Έ λ™μž‘ 막기
                    const command = this.elements.customCommandInput.value;
                    this.executeCustomProgram(command);
                }
            });
        }

        // ================== 포트 μŠ€μΊ” 이벀트 λ¦¬μŠ€λ„ˆ μΆ”κ°€ ==================
        if (this.elements.scanPortsBtn) {
             this.elements.scanPortsBtn.addEventListener('click', () => {
                 console.log('μž₯치 포트 μŠ€μΊ” λ²„νŠΌ 클릭');
                 this.scanDevicePorts();
             });
        }
        // ================== μΆ”κ°€ 끝 ==================================

        console.log('μž₯치 μ œμ–΄ 이벀트 λ¦¬μŠ€λ„ˆ 등둝 μ™„λ£Œ');
    },

    // μž₯치 μ œμ–΄ νƒ­μœΌλ‘œ μ „ν™˜
    switchToDeviceTab: function() {
        // λͺ¨λ“  νƒ­κ³Ό νƒ­ μ½˜ν…μΈ  λΉ„ν™œμ„±ν™”
        const tabs = document.querySelectorAll('.tab');
        const tabContents = document.querySelectorAll('.tab-content');

        tabs.forEach(tab => tab.classList.remove('active'));
        tabContents.forEach(content => content.classList.remove('active'));

        // μž₯치 μ œμ–΄ νƒ­ ν™œμ„±ν™”
        if(this.elements.deviceTab) this.elements.deviceTab.classList.add('active');
        if(this.elements.deviceSection) this.elements.deviceSection.classList.add('active');

        console.log('μž₯치 μ œμ–΄ νƒ­μœΌλ‘œ μ „ν™˜ μ™„λ£Œ');
    },

    // μ„œλ²„ μ—°κ²° ν•¨μˆ˜
    connectServer: async function() {
        // URL κ°€μ Έμ˜€κΈ° (μž…λ ₯된 것이 있으면 λ°±μ—…μœΌλ‘œ μ‚¬μš©)
        const inputUrl = this.elements.deviceServerUrlInput.value.trim();

        // μ—°κ²° μ‹œλ„ 쀑 UI μ—…λ°μ΄νŠΈ
        if(this.elements.connectDeviceServerBtn) this.elements.connectDeviceServerBtn.disabled = true;
        this.updateConnectionStatus('connecting', 'ν™˜κ²½λ³€μˆ˜μ— μ €μž₯된 μ„œλ²„λ‘œ μ—°κ²° μ‹œλ„ 쀑...');

        try {
            console.log('ν™˜κ²½λ³€μˆ˜μ— μ €μž₯된 μž₯치 μ„œλ²„λ‘œ μ—°κ²° μ‹œλ„');

            // λ°±μ—”λ“œ API ν˜ΈμΆœν•˜μ—¬ μ„œλ²„ μƒνƒœ 확인
            const response = await AppUtils.fetchWithTimeout('/api/device/status', {
                method: 'GET'
            }, 10000); // 10초 νƒ€μž„μ•„μ›ƒ

            const data = await response.json();

            if (response.ok && data.success) {
                // ν™˜κ²½λ³€μˆ˜ URL μ—°κ²° 성곡
                console.log('ν™˜κ²½λ³€μˆ˜ μ„€μ • μž₯치 μ„œλ²„ μ—°κ²° 성곡:', data);
                this.isConnected = true;
                // μ„œλ²„ μ‘λ‹΅μ—μ„œ μƒνƒœ λ©”μ‹œμ§€λ₯Ό μ‚¬μš©ν•˜κ±°λ‚˜ κΈ°λ³Έκ°’ μ‚¬μš©
                const serverStatusMsg = data?.data?.status || data?.server_status || '정상';
                this.updateConnectionStatus('connected', `μ„œλ²„ μ—°κ²° 성곡! μƒνƒœ: ${serverStatusMsg}`);

                // κΈ°λŠ₯ UI ν™œμ„±ν™”
                if(this.elements.deviceBasicFunctions) this.elements.deviceBasicFunctions.classList.add('active');
                if(this.elements.deviceProgramControl) this.elements.deviceProgramControl.classList.add('active');
                if(this.elements.deviceCustomControl) this.elements.deviceCustomControl.classList.add('active');
                // ================== 포트 μŠ€μΊ” UI ν™œμ„±ν™” μΆ”κ°€ ==================
                if(this.elements.devicePortScanControl) this.elements.devicePortScanControl.classList.add('active');
                // ================== μΆ”κ°€ 끝 ==================================

                // μž₯치 μƒνƒœ μžλ™ 체크
                this.checkDeviceStatus();
                // ν”„λ‘œκ·Έλž¨ λͺ©λ‘ μžλ™ λ‘œλ“œ
                this.loadProgramsList();
                // μ‹œμŠ€ν…œ μ•Œλ¦Ό
                AppUtils.addSystemNotification(`μž₯치 관리 μ„œλ²„ μ—°κ²° 성곡! (ν™˜κ²½λ³€μˆ˜ URL)`);

            } else {
                // ν™˜κ²½λ³€μˆ˜ URL μ—°κ²° μ‹€νŒ¨, μž…λ ₯된 URL둜 μ‹œλ„
                console.warn('ν™˜κ²½λ³€μˆ˜ μ„€μ • μž₯치 μ„œλ²„ μ—°κ²° μ‹€νŒ¨, μž…λ ₯ URL둜 μž¬μ‹œλ„ν•©λ‹ˆλ‹€:', data);
                if (!inputUrl) {
                    console.error('μž…λ ₯된 URL이 μ—†μ–΄ μ—°κ²° μ‹€νŒ¨');
                    this.isConnected = false;
                    this.updateConnectionStatus('error', 'ν™˜κ²½λ³€μˆ˜ URL μ—°κ²° μ‹€νŒ¨ 및 μž…λ ₯된 URL이 μ—†μŠ΅λ‹ˆλ‹€. URL을 μž…λ ₯ν•΄μ£Όμ„Έμš”.');
                    return; // μž…λ ₯ URL μ—†μœΌλ©΄ μ—¬κΈ°μ„œ μ’…λ£Œ
                }
                // μž…λ ₯ URL둜 μž¬μ‹œλ„
                await this.connectWithCustomUrl(inputUrl);
            }
        } catch (error) {
            // ν™˜κ²½λ³€μˆ˜ URL μ—°κ²° μ‹œλ„ 쀑 μ˜ˆμ™Έ λ°œμƒ
            console.error('ν™˜κ²½λ³€μˆ˜ URL μ„œλ²„ μ—°κ²° 쀑 였λ₯˜ λ°œμƒ:', error);
            this.isConnected = false;
            if (inputUrl) {
                console.warn('ν™˜κ²½λ³€μˆ˜ URL μ—°κ²° μ‹œ 였λ₯˜ λ°œμƒ, μž…λ ₯ URL둜 μž¬μ‹œλ„ν•©λ‹ˆλ‹€');
                 await this.connectWithCustomUrl(inputUrl); // μž…λ ₯ URL μž¬μ‹œλ„
            } else {
                // μž…λ ₯ URL도 μ—†λŠ” 경우 μ΅œμ’… 였λ₯˜ 처리
                if (error.message.includes('μ‹œκ°„μ΄ 초과')) {
                    this.updateConnectionStatus('error', 'ν™˜κ²½λ³€μˆ˜ URL μ—°κ²° μ‹œκ°„ 초과. URL을 μž…λ ₯ν•˜μ—¬ λ‹€μ‹œ μ‹œλ„ν•΄μ£Όμ„Έμš”.');
                } else {
                    this.updateConnectionStatus('error', `ν™˜κ²½λ³€μˆ˜ URL μ—°κ²° 였λ₯˜. URL을 μž…λ ₯ν•˜μ—¬ λ‹€μ‹œ μ‹œλ„ν•΄μ£Όμ„Έμš”: ${error.message}`);
                }
            }
        } finally {
            // λ²„νŠΌ λ‹€μ‹œ ν™œμ„±ν™”
             if(this.elements.connectDeviceServerBtn) this.elements.connectDeviceServerBtn.disabled = false;
        }
    },

    // μ‚¬μš©μž μž…λ ₯ URL둜 μ—°κ²° μ‹œλ„ (connectServer λ‚΄λΆ€ 둜직 뢄리)
    connectWithCustomUrl: async function(url) {
         this.updateConnectionStatus('connecting', `μž…λ ₯ URL(${url})둜 μ—°κ²° μ‹œλ„ 쀑...`);
         console.log(`μž…λ ₯ν•œ URL둜 μž₯치 μ„œλ²„ μ—°κ²° μ‹œλ„: ${url}`);

         try {
             // λ°±μ—”λ“œ API 호좜 - Flask λ°±μ—”λ“œκ°€ URL λ°›μ•„μ„œ 처리
             const customUrlResponse = await AppUtils.fetchWithTimeout('/api/device/connect', {
                 method: 'POST',
                 headers: { 'Content-Type': 'application/json' },
                 body: JSON.stringify({ url: url })
             }, 10000);

             const customUrlData = await customUrlResponse.json();

             if (customUrlResponse.ok && customUrlData.success) {
                 // μž…λ ₯ URL μ—°κ²° 성곡
                 console.log('μž…λ ₯ URL μž₯치 μ„œλ²„ μ—°κ²° 성곡:', customUrlData);
                 this.isConnected = true;
                 this.updateConnectionStatus('connected', `μ„œλ²„ μ—°κ²° 성곡! μƒνƒœ: ${customUrlData.server_status || '정상'}`);

                 // κΈ°λŠ₯ UI ν™œμ„±ν™”
                 if(this.elements.deviceBasicFunctions) this.elements.deviceBasicFunctions.classList.add('active');
                 if(this.elements.deviceProgramControl) this.elements.deviceProgramControl.classList.add('active');
                 if(this.elements.deviceCustomControl) this.elements.deviceCustomControl.classList.add('active');
                 // ================== 포트 μŠ€μΊ” UI ν™œμ„±ν™” μΆ”κ°€ ==================
                 if(this.elements.devicePortScanControl) this.elements.devicePortScanControl.classList.add('active');
                 // ================== μΆ”κ°€ 끝 ==================================

                 // μž₯치 μƒνƒœ μžλ™ 체크
                 this.checkDeviceStatus();
                 // ν”„λ‘œκ·Έλž¨ λͺ©λ‘ μžλ™ λ‘œλ“œ
                 this.loadProgramsList();
                 // μ‹œμŠ€ν…œ μ•Œλ¦Ό
                 AppUtils.addSystemNotification(`μž₯치 관리 μ„œλ²„ μ—°κ²° 성곡! (${url})`);
             } else {
                 // μž…λ ₯ URL μ—°κ²° μ‹€νŒ¨
                 console.error('μž…λ ₯ URL μž₯치 μ„œλ²„ μ—°κ²° μ‹€νŒ¨:', customUrlData);
                 this.isConnected = false;
                 this.updateConnectionStatus('error', `μ„œλ²„ μ—°κ²° μ‹€νŒ¨: ${customUrlData.error || 'μ„œλ²„ 응닡 였λ₯˜'}`);
             }
         } catch(error) {
             // μž…λ ₯ URL둜 μ‹œλ„ 쀑 였λ₯˜
             console.error('μž…λ ₯ URL둜 μž¬μ‹œλ„ 쀑 였λ₯˜ λ°œμƒ:', error);
             this.isConnected = false;
             if (error.message.includes('μ‹œκ°„μ΄ 초과')) {
                 this.updateConnectionStatus('error', 'μ„œλ²„ μ—°κ²° μ‹œκ°„ 초과. μ„œλ²„κ°€ μ‹€ν–‰ 쀑인지 ν™•μΈν•΄μ£Όμ„Έμš”.');
             } else {
                 this.updateConnectionStatus('error', `μ„œλ²„ μ—°κ²° 였λ₯˜: ${error.message}`);
             }
         }
    },

    // μ—°κ²° μƒνƒœ μ—…λ°μ΄νŠΈ
    updateConnectionStatus: function(status, message) {
        const statusElement = this.elements.deviceConnectionStatus;
        if (!statusElement) return; // μš”μ†Œ μ—†μœΌλ©΄ μ’…λ£Œ

        // λͺ¨λ“  μƒνƒœ 클래슀 제거
        statusElement.classList.remove('connected', 'disconnected', 'error', 'connecting');
        // μƒνƒœμ— 따라 클래슀 μΆ”κ°€
        statusElement.classList.add(status);
        // λ©”μ‹œμ§€ μ—…λ°μ΄νŠΈ
        statusElement.textContent = message;
        console.log(`μ—°κ²° μƒνƒœ μ—…λ°μ΄νŠΈ: ${status} - ${message}`);
    },

    // μž₯치 μƒνƒœ 확인
    checkDeviceStatus: async function() {
        if (!this.isConnected) {
             if(this.elements.deviceStatusResult) this.elements.deviceStatusResult.value = '였λ₯˜: λ¨Όμ € μ„œλ²„μ— μ—°κ²°ν•΄μ•Ό ν•©λ‹ˆλ‹€.';
            console.error('μž₯치 μƒνƒœ 확인 μ‹œλ„ 쀑 였λ₯˜: μ„œλ²„ μ—°κ²° μ•ˆλ¨');
            return;
        }
        // μƒνƒœ 확인 쀑 UI μ—…λ°μ΄νŠΈ
         if(this.elements.checkDeviceStatusBtn) this.elements.checkDeviceStatusBtn.disabled = true;
         if(this.elements.deviceStatusResult) this.elements.deviceStatusResult.value = 'μž₯치 μƒνƒœ 확인 쀑...';

        try {
            console.log('μž₯치 μƒνƒœ 확인 μš”μ²­ 전솑');
            // λ°±μ—”λ“œ API 호좜
            const response = await AppUtils.fetchWithTimeout('/api/device/status', { method: 'GET' });
            const data = await response.json();

            if (response.ok && data.success) {
                console.log('μž₯치 μƒνƒœ 확인 성곡:', data);
                this.isStatusChecked = true;
                // JSON 데이터λ₯Ό 보기 μ’‹κ²Œ ν¬λ§·νŒ…ν•˜μ—¬ ν‘œμ‹œ
                 if(this.elements.deviceStatusResult) this.elements.deviceStatusResult.value = JSON.stringify(data.data || data, null, 2); // data.data μš°μ„  확인
            } else {
                console.error('μž₯치 μƒνƒœ 확인 μ‹€νŒ¨:', data);
                 if(this.elements.deviceStatusResult) this.elements.deviceStatusResult.value = `μƒνƒœ 확인 μ‹€νŒ¨: ${data.error || 'μ•Œ 수 μ—†λŠ” 였λ₯˜'}`;
            }
        } catch (error) {
            console.error('μž₯치 μƒνƒœ 확인 쀑 였λ₯˜ λ°œμƒ:', error);
             if(this.elements.deviceStatusResult) this.elements.deviceStatusResult.value = `μƒνƒœ 확인 쀑 였λ₯˜ λ°œμƒ: ${error.message}`;
        } finally {
             if(this.elements.checkDeviceStatusBtn) this.elements.checkDeviceStatusBtn.disabled = false;
        }
    },

    // ν”„λ‘œκ·Έλž¨ λͺ©λ‘ 쑰회
    loadProgramsList: async function() {
        if (!this.isConnected) {
            this.showProgramsError('였λ₯˜: λ¨Όμ € μ„œλ²„μ— μ—°κ²°ν•΄μ•Ό ν•©λ‹ˆλ‹€.');
            console.error('ν”„λ‘œκ·Έλž¨ λͺ©λ‘ 쑰회 μ‹œλ„ 쀑 였λ₯˜: μ„œλ²„ μ—°κ²° μ•ˆλ¨');
            return;
        }
        if (this.isLoadingPrograms) {
            console.log('이미 ν”„λ‘œκ·Έλž¨ λͺ©λ‘ λ‘œλ”© 쀑');
            return;
        }

        // λ‘œλ”© 쀑 UI μ—…λ°μ΄νŠΈ
        this.isLoadingPrograms = true;
        if(this.elements.getProgramsBtn) this.elements.getProgramsBtn.disabled = true;
        if(this.elements.programsList) {
             this.elements.programsList.innerHTML = `<div class="loading-message">${AppUtils.createLoadingSpinner()} ν”„λ‘œκ·Έλž¨ λͺ©λ‘ λ‘œλ“œ 쀑...</div>`;
        }

        try {
            console.log('ν”„λ‘œκ·Έλž¨ λͺ©λ‘ 쑰회 μš”μ²­ 전솑');
            // λ°±μ—”λ“œ API 호좜
            const response = await AppUtils.fetchWithTimeout('/api/device/programs', { method: 'GET' });
            const data = await response.json();

            if (response.ok && data.success) {
                console.log('ν”„λ‘œκ·Έλž¨ λͺ©λ‘ 쑰회 성곡:', data);
                this.programsList = data.programs || [];
                this.displayProgramsList();
                this.updateProgramsDropdown();
                this.updateExecuteButton();
            } else {
                console.error('ν”„λ‘œκ·Έλž¨ λͺ©λ‘ 쑰회 μ‹€νŒ¨:', data);
                this.showProgramsError(`ν”„λ‘œκ·Έλž¨ λͺ©λ‘ 쑰회 μ‹€νŒ¨: ${data.error || 'μ•Œ 수 μ—†λŠ” 였λ₯˜'}`);
            }
        } catch (error) {
            console.error('ν”„λ‘œκ·Έλž¨ λͺ©λ‘ 쑰회 쀑 였λ₯˜ λ°œμƒ:', error);
            this.showProgramsError(`ν”„λ‘œκ·Έλž¨ λͺ©λ‘ 쑰회 쀑 였λ₯˜ λ°œμƒ: ${error.message}`);
        } finally {
            this.isLoadingPrograms = false;
             if(this.elements.getProgramsBtn) this.elements.getProgramsBtn.disabled = false;
        }
    },

    // ν”„λ‘œκ·Έλž¨ λͺ©λ‘ ν‘œμ‹œ
    displayProgramsList: function() {
        const programsListElement = this.elements.programsList;
        if (!programsListElement) return;

        if (!this.programsList || this.programsList.length === 0) {
            programsListElement.innerHTML = `<div class="no-programs-message"><i class="fas fa-info-circle"></i> λ“±λ‘λœ ν”„λ‘œκ·Έλž¨μ΄ μ—†μŠ΅λ‹ˆλ‹€.</div>`;
            return;
        }
        // ν…Œμ΄λΈ” ν˜•νƒœλ‘œ ν”„λ‘œκ·Έλž¨ λͺ©λ‘ ν‘œμ‹œ
        let html = `<table class="program-list"><thead><tr><th>이름</th><th>μ„€λͺ…</th><th>경둜</th></tr></thead><tbody>`;
        this.programsList.forEach(program => {
            html += `<tr>
                        <td>${AppUtils.escapeHtml(program.name || 'μ•Œ 수 μ—†μŒ')}</td>
                        <td>${AppUtils.escapeHtml(program.description || '-')}</td>
                        <td>${AppUtils.escapeHtml(program.path || '-')}</td>
                     </tr>`;
        });
        html += `</tbody></table><div style="margin-top: 10px; font-size: 0.9em; color: #666;">총 ${this.programsList.length}개 ν”„λ‘œκ·Έλž¨</div>`;
        programsListElement.innerHTML = html;
    },

    // ν”„λ‘œκ·Έλž¨ λ“œλ‘­λ‹€μš΄ μ—…λ°μ΄νŠΈ
    updateProgramsDropdown: function() {
        const dropdown = this.elements.programSelectDropdown;
        if (!dropdown) return;

        dropdown.innerHTML = ''; // κΈ°μ‘΄ μ˜΅μ…˜ 제거
        const defaultOption = document.createElement('option');
        defaultOption.value = '';
        defaultOption.textContent = this.programsList.length > 0 ? '-- μ‹€ν–‰ν•  ν”„λ‘œκ·Έλž¨ 선택 --' : '-- ν”„λ‘œκ·Έλž¨ μ—†μŒ --';
        dropdown.appendChild(defaultOption);

        this.programsList.forEach(program => {
            const option = document.createElement('option');
            option.value = program.id || '';
            option.textContent = program.name || 'μ•Œ 수 μ—†μŒ';
            if (program.description) {
                option.textContent += ` (${program.description})`;
            }
            dropdown.appendChild(option);
        });
    },

    // μ‹€ν–‰ λ²„νŠΌ μƒνƒœ μ—…λ°μ΄νŠΈ
    updateExecuteButton: function() {
        const dropdown = this.elements.programSelectDropdown;
        const executeBtn = this.elements.executeProgramBtn;
        if (!dropdown || !executeBtn) return;
        executeBtn.disabled = !dropdown.value; // μ„ νƒλœ ν”„λ‘œκ·Έλž¨μ΄ μžˆμ„ λ•Œλ§Œ ν™œμ„±ν™”
    },

    // ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ (미리 μ •μ˜λœ)
    executeProgram: async function(programId) {
        if (!this.isConnected) {
            this.showExecuteResult('error', '였λ₯˜: λ¨Όμ € μ„œλ²„μ— μ—°κ²°ν•΄μ•Ό ν•©λ‹ˆλ‹€.');
            return;
        }
        if (!programId) {
            this.showExecuteResult('error', '였λ₯˜: μ‹€ν–‰ν•  ν”„λ‘œκ·Έλž¨μ„ μ„ νƒν•΄μ£Όμ„Έμš”.');
            return;
        }

        // μ‹€ν–‰ 쀑 UI μ—…λ°μ΄νŠΈ
        if(this.elements.executeProgramBtn) this.elements.executeProgramBtn.disabled = true;
        this.showExecuteResult('loading', 'ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ 쀑...');

        try {
            console.log(`ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ μš”μ²­ 전솑: ${programId}`);
            // λ°±μ—”λ“œ API 호좜
            const response = await AppUtils.fetchWithTimeout(`/api/device/programs/${programId}/execute`, {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({})
            }, 15000); // 15초 νƒ€μž„μ•„μ›ƒ

            const data = await response.json();
            if (response.ok && data.success) {
                console.log('ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ 성곡:', data);
                this.showExecuteResult('success', `μ‹€ν–‰ 성곡: ${data.message || 'ν”„λ‘œκ·Έλž¨μ΄ μ„±κ³΅μ μœΌλ‘œ μ‹€ν–‰λ˜μ—ˆμŠ΅λ‹ˆλ‹€.'}`);
                AppUtils.addSystemNotification(`ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ 성곡: ${this.getSelectedProgramName()}`);
            } else {
                console.error('ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ μ‹€νŒ¨:', data);
                this.showExecuteResult('error', `μ‹€ν–‰ μ‹€νŒ¨: ${data.error || 'μ•Œ 수 μ—†λŠ” 였λ₯˜'}`);
            }
        } catch (error) {
            console.error('ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ 쀑 였λ₯˜ λ°œμƒ:', error);
            if (error.message.includes('μ‹œκ°„μ΄ 초과')) {
                this.showExecuteResult('error', 'ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ μš”μ²­ μ‹œκ°„ 초과. μ„œλ²„ 응닡이 μ—†μŠ΅λ‹ˆλ‹€.');
            } else {
                this.showExecuteResult('error', `ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ 쀑 였λ₯˜ λ°œμƒ: ${error.message}`);
            }
        } finally {
             if(this.elements.executeProgramBtn) this.elements.executeProgramBtn.disabled = false;
        }
    },

    // μ„ νƒλœ ν”„λ‘œκ·Έλž¨ 이름 κ°€μ Έμ˜€κΈ°
    getSelectedProgramName: function() {
        const dropdown = this.elements.programSelectDropdown;
        if (!dropdown || dropdown.selectedIndex < 0) return 'μ•Œ 수 μ—†λŠ” ν”„λ‘œκ·Έλž¨'; // 인덱슀 체크 μΆ”κ°€
        const selectedOption = dropdown.options[dropdown.selectedIndex];
        return selectedOption ? selectedOption.textContent : 'μ•Œ 수 μ—†λŠ” ν”„λ‘œκ·Έλž¨';
    },

    // ν”„λ‘œκ·Έλž¨ λͺ©λ‘ 였λ₯˜ ν‘œμ‹œ
    showProgramsError: function(errorMessage) {
        const programsListElement = this.elements.programsList;
        if (!programsListElement) return;

        programsListElement.innerHTML = `<div class="error-message"><i class="fas fa-exclamation-circle"></i> ${errorMessage} <button class="retry-button" id="retryLoadProgramsBtn"><i class="fas fa-sync"></i> λ‹€μ‹œ μ‹œλ„</button></div>`;
        const retryBtn = document.getElementById('retryLoadProgramsBtn');
        if (retryBtn) {
             // κΈ°μ‘΄ λ¦¬μŠ€λ„ˆ 제거 ν›„ μΆ”κ°€ (쀑볡 λ°©μ§€)
             retryBtn.replaceWith(retryBtn.cloneNode(true));
             document.getElementById('retryLoadProgramsBtn').addEventListener('click', () => {
                console.log('ν”„λ‘œκ·Έλž¨ λͺ©λ‘ μž¬μ‹œλ„ λ²„νŠΌ 클릭');
                this.loadProgramsList();
            });
        }
    },

    // μ‹€ν–‰ κ²°κ³Ό ν‘œμ‹œ (미리 μ •μ˜λœ ν”„λ‘œκ·Έλž¨ 용)
    showExecuteResult: function(status, message) {
        const resultElement = this.elements.executeResult;
        if (!resultElement) return;

        resultElement.classList.remove('success', 'error', 'warning'); // λͺ¨λ“  μƒνƒœ 클래슀 제거
        resultElement.innerHTML = ''; // λ‚΄μš© μ΄ˆκΈ°ν™”

        switch (status) {
            case 'success':
                resultElement.classList.add('success');
                resultElement.innerHTML = `<i class="fas fa-check-circle"></i> ${message}`;
                break;
            case 'error':
                resultElement.classList.add('error');
                resultElement.innerHTML = `<i class="fas fa-exclamation-circle"></i> ${message}`;
                break;
            case 'warning':
                resultElement.classList.add('warning');
                resultElement.innerHTML = `<i class="fas fa-exclamation-triangle"></i> ${message}`;
                break;
            case 'loading':
                resultElement.innerHTML = `${AppUtils.createLoadingSpinner()} ${message}`;
                break;
            default:
                resultElement.textContent = message;
        }
    },

    // μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰
    executeCustomProgram: async function(command) {
        if (!this.isConnected) {
            this.showCustomExecuteResult('error', '였λ₯˜: λ¨Όμ € μ„œλ²„μ— μ—°κ²°ν•΄μ•Ό ν•©λ‹ˆλ‹€.');
            return;
        }
        if (!command || command.trim() === '') {
            this.showCustomExecuteResult('error', '였λ₯˜: μ‹€ν–‰ν•  λͺ…λ Ήμ–΄λ₯Ό μž…λ ₯ν•΄μ£Όμ„Έμš”.');
            return;
        }

        // μ‹€ν–‰ 쀑 UI μ—…λ°μ΄νŠΈ
        if(this.elements.executeCustomBtn) this.elements.executeCustomBtn.disabled = true;
        this.showCustomExecuteResult('loading', 'λͺ…λ Ήμ–΄ μ‹€ν–‰ 쀑...');

        try {
            console.log(`μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ μš”μ²­ 전솑: ${command}`);
            // λ°±μ—”λ“œ API 호좜
            const response = await AppUtils.fetchWithTimeout('/api/device/execute-custom', {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify({ command: command })
            }, 15000); // 15초 νƒ€μž„μ•„μ›ƒ

            const data = await response.json();
            if (response.ok && data.success) {
                console.log('μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ 성곡:', data);
                let successMessage = `λͺ…λ Ήμ–΄ μ‹€ν–‰ 성곡: ${data.message || ''}`;
                if (data.output && data.output.trim()) {
                    successMessage += `<div class="command-output"><pre>${AppUtils.escapeHtml(data.output)}</pre></div>`;
                }
                this.showCustomExecuteResult('success', successMessage);
                AppUtils.addSystemNotification(`μ‚¬μš©μž μ •μ˜ λͺ…λ Ήμ–΄ μ‹€ν–‰ 성곡: ${command}`);
            } else {
                console.error('μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ μ‹€νŒ¨:', data);
                let errorMessage = `μ‹€ν–‰ μ‹€νŒ¨: ${data.error || 'μ•Œ 수 μ—†λŠ” 였λ₯˜'}`;
                if (data.error_output && data.error_output.trim()) {
                    errorMessage += `<div class="command-error"><pre>${AppUtils.escapeHtml(data.error_output)}</pre></div>`;
                }
                this.showCustomExecuteResult('error', errorMessage);
            }
        } catch (error) {
            console.error('μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ 쀑 였λ₯˜ λ°œμƒ:', error);
            if (error.message.includes('μ‹œκ°„μ΄ 초과')) {
                this.showCustomExecuteResult('error', 'λͺ…λ Ήμ–΄ μ‹€ν–‰ μš”μ²­ μ‹œκ°„ 초과. μ„œλ²„ 응닡이 μ—†μŠ΅λ‹ˆλ‹€.');
            } else {
                this.showCustomExecuteResult('error', `λͺ…λ Ήμ–΄ μ‹€ν–‰ 쀑 였λ₯˜ λ°œμƒ: ${error.message}`);
            }
        } finally {
             if(this.elements.executeCustomBtn) this.elements.executeCustomBtn.disabled = false;
        }
    },

    // μ‚¬μš©μž μ •μ˜ ν”„λ‘œκ·Έλž¨ μ‹€ν–‰ κ²°κ³Ό ν‘œμ‹œ
    showCustomExecuteResult: function(status, message) {
        const resultElement = this.elements.customExecuteResult;
        if (!resultElement) return;

        resultElement.classList.remove('success', 'error', 'warning'); // λͺ¨λ“  μƒνƒœ 클래슀 제거
        resultElement.innerHTML = ''; // λ‚΄μš© μ΄ˆκΈ°ν™”

        switch (status) {
            case 'success':
                resultElement.classList.add('success');
                resultElement.innerHTML = `<i class="fas fa-check-circle"></i> ${message}`;
                break;
            case 'error':
                resultElement.classList.add('error');
                resultElement.innerHTML = `<i class="fas fa-exclamation-circle"></i> ${message}`;
                break;
            case 'warning':
                resultElement.classList.add('warning');
                resultElement.innerHTML = `<i class="fas fa-exclamation-triangle"></i> ${message}`;
                break;
            case 'loading':
                resultElement.innerHTML = `${AppUtils.createLoadingSpinner()} ${message}`;
                break;
            default:
                resultElement.textContent = message; // 기본은 ν…μŠ€νŠΈλ§Œ ν‘œμ‹œ
        }
    },

    // ================== 포트 μŠ€μΊ” ν•¨μˆ˜ μΆ”κ°€ ==================
    // μž₯치 포트 μŠ€μΊ” ν•¨μˆ˜
    scanDevicePorts: async function() {
        if (!this.isConnected) {
            this.showPortsStatus('error', '였λ₯˜: λ¨Όμ € μ„œλ²„μ— μ—°κ²°ν•΄μ•Ό ν•©λ‹ˆλ‹€.');
            console.error('μž₯치 포트 μŠ€μΊ” μ‹œλ„ 쀑 였λ₯˜: μ„œλ²„ μ—°κ²° μ•ˆλ¨');
            return;
        }
        // μŠ€μΊ” 쀑 UI μ—…λ°μ΄νŠΈ
        if(this.elements.scanPortsBtn) this.elements.scanPortsBtn.disabled = true;
        this.showPortsStatus('loading', 'μž₯치 포트 μŠ€μΊ” 쀑...');

        try {
            console.log('μž₯치 포트 μŠ€μΊ” μš”μ²­ 전솑');
            // λ°±μ—”λ“œ API 호좜
            const response = await AppUtils.fetchWithTimeout('/api/device/scan-ports', {
                method: 'GET'
            }, 30000); // μž₯치 μŠ€μΊ”μ€ μ‹œκ°„μ΄ 였래 걸릴 수 μžˆμœΌλ―€λ‘œ νƒ€μž„μ•„μ›ƒ 30초둜 μ„€μ •

            const data = await response.json();

            if (response.ok && data.success) {
                // μŠ€μΊ” 성곡
                console.log('μž₯치 포트 μŠ€μΊ” 성곡:', data);
                // κ²°κ³Ό ν‘œμ‹œ
                this.displayPortsResults(data);
                this.showPortsStatus('success', 'μž₯치 포트 μŠ€μΊ”μ΄ μ™„λ£Œλ˜μ—ˆμŠ΅λ‹ˆλ‹€.');
            } else {
                // μŠ€μΊ” μ‹€νŒ¨
                console.error('μž₯치 포트 μŠ€μΊ” μ‹€νŒ¨:', data);
                this.showPortsStatus('error', `μŠ€μΊ” μ‹€νŒ¨: ${data.error || 'μ•Œ 수 μ—†λŠ” 였λ₯˜'}`);
            }
        } catch (error) {
            // μ˜ˆμ™Έ λ°œμƒ
            console.error('μž₯치 포트 μŠ€μΊ” 쀑 였λ₯˜ λ°œμƒ:', error);
            if (error.message.includes('μ‹œκ°„μ΄ 초과')) {
                this.showPortsStatus('error', 'μž₯치 포트 μŠ€μΊ” μš”μ²­ μ‹œκ°„ 초과. μ„œλ²„ 응닡이 μ—†μŠ΅λ‹ˆλ‹€.');
            } else {
                this.showPortsStatus('error', `μž₯치 포트 μŠ€μΊ” 쀑 였λ₯˜ λ°œμƒ: ${error.message}`);
            }
        } finally {
            // λ²„νŠΌ λ‹€μ‹œ ν™œμ„±ν™”
             if(this.elements.scanPortsBtn) this.elements.scanPortsBtn.disabled = false;
        }
    },

    // μž₯치 포트 μŠ€μΊ” κ²°κ³Ό ν‘œμ‹œ
    displayPortsResults: function(data) {
        const portsResultsElement = this.elements.portsResults;
        if (!portsResultsElement) return; // μš”μ†Œ μ—†μœΌλ©΄ μ’…λ£Œ

        // μ‹œμŠ€ν…œ 정보
        const systemInfo = data.system_info || {};
        const devices = data.devices || {};
        const serialPorts = devices.serial || [];
        const usbDevices = devices.usb || [];
        const windowsUsbDevices = devices.windows_usb || []; // windows_usb ν‚€ μΆ”κ°€

        // HTML 생성 μ‹œμž‘
        let html = `<div class="ports-results-container">`;

        // μ‹œμŠ€ν…œ 정보 μ„Ήμ…˜
        html += `<div class="ports-section">
                    <h4>μ‹œμŠ€ν…œ 정보</h4>
                    <div class="info-row"><span class="info-label">OS:</span><span class="info-value">${AppUtils.escapeHtml(systemInfo.os || 'μ•Œ 수 μ—†μŒ')} ${AppUtils.escapeHtml(systemInfo.version || '')}</span></div>
                    <div class="info-row"><span class="info-label">μ‹œμŠ€ν…œ:</span><span class="info-value">${AppUtils.escapeHtml(systemInfo.platform || 'μ•Œ 수 μ—†μŒ')}</span></div>
                    <div class="info-row"><span class="info-label">쑰회 μ‹œκ°„:</span><span class="info-value">${AppUtils.escapeHtml(data.timestamp || 'μ•Œ 수 μ—†μŒ')}</span></div>
                 </div>`;

        // μ‹œλ¦¬μ–Ό 포트 μ„Ήμ…˜
        html += `<div class="ports-section"><h4>μ‹œλ¦¬μ–Ό 포트 (${serialPorts.length}개)</h4>`;
        if (serialPorts.length === 0) {
            html += `<p class="no-ports-message">발견된 μ‹œλ¦¬μ–Ό ν¬νŠΈκ°€ μ—†μŠ΅λ‹ˆλ‹€.</p>`;
        } else {
            html += `<table class="ports-table"><thead><tr><th>포트</th><th>μ„€λͺ…</th><th>μ œμ‘°μ‚¬</th><th>VID:PID</th></tr></thead><tbody>`;
            serialPorts.forEach(port => {
                const vidPid = (port.vid && port.pid) ? `${port.vid}:${port.pid}` : 'μ•Œ 수 μ—†μŒ';
                html += `<tr>
                            <td>${AppUtils.escapeHtml(port.port || '')}</td>
                            <td>${AppUtils.escapeHtml(port.description || '')}</td>
                            <td>${AppUtils.escapeHtml(port.manufacturer || '')}</td>
                            <td>${AppUtils.escapeHtml(vidPid)}</td>
                         </tr>`;
            });
            html += `</tbody></table>`;
        }
        html += `</div>`;

        // USB μž₯치 μ„Ήμ…˜ (pyserial list_ports 기반)
        html += `<div class="ports-section"><h4>USB μž₯치 (pyserial) (${usbDevices.length}개)</h4>`;
        if (usbDevices.length === 0) {
            html += `<p class="no-ports-message">발견된 USB μž₯μΉ˜κ°€ μ—†μŠ΅λ‹ˆλ‹€.</p>`;
        } else {
            html += `<table class="ports-table"><thead><tr><th>VID:PID</th><th>μ œν’ˆλͺ…</th><th>μ œμ‘°μ‚¬</th><th>μœ„μΉ˜</th></tr></thead><tbody>`;
            usbDevices.forEach(device => {
                const vidPid = (device.vid && device.pid) ? `${device.vid}:${device.pid}` : 'μ•Œ 수 μ—†μŒ';
                html += `<tr>
                            <td>${AppUtils.escapeHtml(vidPid)}</td>
                            <td>${AppUtils.escapeHtml(device.product || '')}</td>
                            <td>${AppUtils.escapeHtml(device.manufacturer || '')}</td>
                            <td>${AppUtils.escapeHtml(device.location || '')}</td>
                         </tr>`;
            });
            html += `</tbody></table>`;
        }
        html += `</div>`;

        // Windows WMI USB μž₯치 μ„Ήμ…˜ (μžˆλŠ” 경우)
        if (windowsUsbDevices && windowsUsbDevices.length > 0) {
            html += `<div class="ports-section"><h4>Windows USB μž₯치 (WMI) (${windowsUsbDevices.length}개)</h4>`;
            html += `<table class="ports-table"><thead><tr><th>이름</th><th>μ„€λͺ…</th><th>μ œμ‘°μ‚¬</th><th>VID:PID</th></tr></thead><tbody>`;
            windowsUsbDevices.forEach(device => {
                const vidPid = (device.vid && device.pid) ? `${device.vid}:${device.pid}` : 'μ•Œ 수 μ—†μŒ';
                html += `<tr>
                            <td>${AppUtils.escapeHtml(device.name || '')}</td>
                            <td>${AppUtils.escapeHtml(device.description || '')}</td>
                            <td>${AppUtils.escapeHtml(device.manufacturer || '')}</td>
                            <td>${AppUtils.escapeHtml(vidPid)}</td>
                         </tr>`;
            });
            html += `</tbody></table></div>`;
        }

        // μ»¨ν…Œμ΄λ„ˆ λ‹«κΈ°
        html += `</div>`;

        // HTML μ„€μ •
        portsResultsElement.innerHTML = html;
    },

    // 포트 μŠ€μΊ” μƒνƒœ ν‘œμ‹œ
    showPortsStatus: function(status, message) {
        const statusElement = this.elements.portsStatus;
        if (!statusElement) return; // μš”μ†Œ μ—†μœΌλ©΄ μ’…λ£Œ

        // λͺ¨λ“  μƒνƒœ 클래슀 제거
        statusElement.classList.remove('success', 'error', 'warning');
        // λ‚΄μš© μ΄ˆκΈ°ν™”
        statusElement.innerHTML = '';

        // μƒνƒœμ— 따라 처리
        switch (status) {
            case 'success':
                statusElement.classList.add('success');
                statusElement.innerHTML = `<i class="fas fa-check-circle"></i> ${message}`;
                break;
            case 'error':
                statusElement.classList.add('error');
                statusElement.innerHTML = `<i class="fas fa-exclamation-circle"></i> ${message}`;
                break;
            case 'warning':
                statusElement.classList.add('warning');
                statusElement.innerHTML = `<i class="fas fa-exclamation-triangle"></i> ${message}`;
                break;
            case 'loading':
                statusElement.innerHTML = `${AppUtils.createLoadingSpinner()} ${message}`;
                break;
            default:
                statusElement.textContent = message;
        }
    }
    // ================== μΆ”κ°€ 끝 ============================

}; // DeviceControl 객체 끝

// νŽ˜μ΄μ§€ λ‘œλ“œ μ™„λ£Œ μ‹œ λͺ¨λ“ˆ μ΄ˆκΈ°ν™”
document.addEventListener('DOMContentLoaded', function() {
    console.log('μž₯치 μ œμ–΄ λͺ¨λ“ˆ λ‘œλ“œλ¨');

    // DOM이 μ™„μ „νžˆ λ‘œλ“œλœ ν›„ μ•½κ°„μ˜ 지연을 두고 μ΄ˆκΈ°ν™”
    // DOM μš”μ†Œκ°€ ν™•μ‹€νžˆ λ‘œλ“œλœ 후에 μ΄ˆκΈ°ν™”ν•˜κΈ° μœ„ν•¨
    setTimeout(() => {
        // AppUtilsκ°€ μ •μ˜λ˜μ—ˆλŠ”μ§€ 확인 (μ˜μ‘΄μ„±)
        if (typeof AppUtils === 'undefined') {
             console.error('AppUtilsκ°€ μ •μ˜λ˜μ§€ μ•Šμ•„ DeviceControl μ΄ˆκΈ°ν™” μ‹€νŒ¨.');
             // ν•„μš”ν•˜λ‹€λ©΄ μ‚¬μš©μžμ—κ²Œ μ•Œλ¦Ό ν‘œμ‹œ
             alert('νŽ˜μ΄μ§€ μ΄ˆκΈ°ν™” 였λ₯˜: ν•„μˆ˜ μœ ν‹Έλ¦¬ν‹°(AppUtils)λ₯Ό λ‘œλ“œν•  수 μ—†μŠ΅λ‹ˆλ‹€.');
             return;
        }
        DeviceControl.init();
    }, 100);
});