(function () {
    const isPostbag = window.location.pathname.indexOf("/opinion/postbag") !== -1;


    function getCookie(name) {
        const match = document.cookie.match(new RegExp('(^| )' + name + '=([^;]+)'));
        if (match) return match[2];
        try {
            const rawLocal = localStorage.getItem(name);
            if (rawLocal) {
                // 1. Check if item has JSON expiration wrapper
                if (rawLocal.charAt(0) === '{' && rawLocal.charAt(rawLocal.length - 1) === '}') {
                    try {
                        const parsed = JSON.parse(rawLocal);
                        if (parsed && typeof parsed.expires === 'number') {
                            if (Date.now() > parsed.expires) {
                                localStorage.removeItem(name);
                                return null;
                            }
                            return parsed.value;
                        }
                    } catch (jsonErr) { }
                }
                // 2. Check if item is a JWT token with an internal exp claim
                const parts = rawLocal.split('.');
                if (parts.length === 3) {
                    try {
                        let b64 = parts[1].replace(/-/g, '+').replace(/_/g, '/');
                        while (b64.length % 4) b64 += '=';
                        const payload = JSON.parse(atob(b64));
                        if (payload && payload.exp && (payload.exp * 1000) < Date.now()) {
                            localStorage.removeItem(name);
                            return null;
                        }
                    } catch (jwtErr) { }
                }
                return rawLocal;
            }

            const rawSession = sessionStorage.getItem(name);
            if (rawSession) return rawSession;
        } catch (e) {
            return null;
        }
        return null;
    }

    function setCookie(name, value, ms) {
        const d = new Date();
        const ttl = ms || (1 * 60 * 60 * 1000);
        const expiresTime = d.getTime() + ttl;
        d.setTime(expiresTime);
        document.cookie = name + "=" + value + ";path=/;SameSite=Lax;expires=" + d.toUTCString();
        try {
            const itemObj = {
                value: value,
                expires: expiresTime
            };
            localStorage.setItem(name, JSON.stringify(itemObj));
            sessionStorage.setItem(name, value);
        } catch (e) { }
    }

    function isLoggedIn() {
        const hasCookie = !!getCookie(window._m_c || "__bwp");
        const dgsMetaUser = document.querySelector('meta[name="dgs-user"]');
        const hasActiveSub = dgsMetaUser && dgsMetaUser.content === 'enable';
        return hasCookie || hasActiveSub;
    }

    function logPaywallView(type, action, variant, variantName, customParams) {
        if (!action) {
            action = 'paywall_impression';
        }
        customParams = customParams || {};

        const isPostbag = window.location.pathname.indexOf("/opinion/postbag") !== -1;
        const current_section = (typeof customParams.section_name !== 'undefined' && customParams.section_name !== null)
            ? customParams.section_name
            : ((typeof g_section_name !== 'undefined' && g_section_name) ? g_section_name : "");

        const isSubLanding = current_section === 'subscription' || current_section === 'digital-subscription' || current_section === 'subscriptions' || current_section === 'digital-subscriptions';

        let log_variant = variant;
        if (isSubLanding) {
            log_variant = "";
        } else if (typeof log_variant === 'undefined' || log_variant === null || log_variant === '') {
            log_variant = window.DGS_PAYWALL_VARIANT || '';
        }

        let log_variant_name = variantName;
        if (isSubLanding) {
            log_variant_name = "";
        } else if (typeof log_variant_name === 'undefined' || log_variant_name === null || log_variant_name === '') {
            log_variant_name = window.DGS_PAYWALL_VARIANT_NAME || '';
        }
        if (!isSubLanding && log_variant && !log_variant_name && window.DGS_PAYWALL_WORDINGS_ALL && window.DGS_PAYWALL_WORDINGS_ALL[log_variant]) {
            const vObj = window.DGS_PAYWALL_WORDINGS_ALL[log_variant];
            log_variant_name = vObj['variant_name'] || '';
        }

        let dgsBase = "/v3/";
        let log_type = isPostbag ? 'postbag' : type;
        let log_content_id = isPostbag ? "" : ((typeof customParams.content_id !== 'undefined' && customParams.content_id !== null)
            ? customParams.content_id
            : ((typeof g_content_id !== 'undefined' && g_content_id) ? g_content_id : ""));

        if (current_section === 'topic_main') {
            log_type = 'topic_main';
        } else if (current_section === 'topic_content') {
            log_type = 'topic_content';
        }

        let log_topic_id = (typeof customParams.topic_id !== 'undefined' && customParams.topic_id !== null)
            ? customParams.topic_id
            : ((typeof g_topic_id !== 'undefined' && g_topic_id) ? g_topic_id : "");

        if (current_section === 'topic_content' && log_topic_id) {
            log_content_id = log_topic_id;
        }

        let log_category_id = (typeof customParams.category_id !== 'undefined' && customParams.category_id !== null)
            ? customParams.category_id
            : ((typeof g_category_id !== 'undefined' && g_category_id) ? g_category_id : "");

        const logUrl = dgsBase + "api/log-action-paywall";
        const data = {
            type: log_type,
            action: action,
            content_id: log_content_id,
            section_name: current_section,
            category_id: log_category_id,
            variant: log_variant || "",
            variant_name: log_variant_name || ""
        };

        const params = new URLSearchParams(data);

        // 1. ลองใช้ navigator.sendBeacon สำหรับการกด CTA หรือเปลี่ยนหน้า เพื่อป้องกัน Request โดน Abort เมื่อเบราว์เซอร์ Unload/Redirect
        if (typeof navigator !== 'undefined' && typeof navigator.sendBeacon === 'function') {
            try {
                const blob = new Blob([params.toString()], { type: 'application/x-www-form-urlencoded' });
                const sent = navigator.sendBeacon(logUrl, blob);
                if (sent) {
                    console.log("Paywall action logged via sendBeacon:", action, data);
                    return;
                }
            } catch (beaconErr) {
                console.warn("sendBeacon error, falling back to fetch/ajax:", beaconErr);
            }
        }

        // 2. ใช้ fetch พร้อม keepalive: true (ทำงานได้ต่อเนื่องแม้เพจกำลังถูก Unload/Redirect)
        if (typeof fetch === 'function') {
            fetch(logUrl, {
                method: "POST",
                headers: {
                    "Content-Type": "application/x-www-form-urlencoded"
                },
                body: params,
                keepalive: true
            })
                .then(function (res) { return res.json(); })
                .then(function (res) {
                    console.log("Paywall action logged successfully via fetch:", res);
                })
                .catch(function (err) {
                    console.error("Failed to log paywall view via fetch:", err);
                });
            return;
        }

        // 3. Fallback สำหรับเบราว์เซอร์เก่ามากที่ไม่มี fetch/sendBeacon
        if (typeof $ !== 'undefined' && $.ajax) {
            $.ajax({
                url: logUrl,
                method: "POST",
                data: data,
                dataType: "json",
                success: function (res) {
                    console.log("Paywall view logged successfully via jQuery:", res);
                },
                error: function (err) {
                    console.error("Failed to log paywall view via jQuery:", err);
                }
            });
        }
    }
    window.logPaywallView = logPaywallView;

    function logPaywallLockDiagnostic(triggerSource) {
        try {
            const pageKey = 'dgs_diag_logged_' + window.location.pathname;
            if (sessionStorage.getItem(pageKey)) {
                return;
            }
            sessionStorage.setItem(pageKey, '1');

            const cookieName = window._p_c || "__bwp_pw";
            const loginCookieName = window._m_c || "__bwp";

            // 1. ตรวจสอบคุกกี้ Login (__bwp)
            const matchLogin = document.cookie.match(new RegExp('(^| )' + loginCookieName + '=([^;]+)'));
            const hasLoginCookie = !!matchLogin;
            let loggedInUserId = null;
            if (hasLoginCookie) {
                try {
                    const loginRaw = decodeURIComponent(matchLogin[2]);
                    const uidMatch = loginRaw.match(/userID["\s:;]+([0-9]+)/i) || loginRaw.match(/"id"[:\s]+([0-9]+)/i);
                    if (uidMatch) loggedInUserId = uidMatch[1];
                } catch (e) { }
            }

            // 2. ตรวจสอบคุกกี้สถานะสมาชิก (_bp_pdgs หรือ __bwp_pw)
            const subCookie = getCookie(window._s_c || "_bp_pdgs");
            const hasSubCookie = (subCookie === "1");
            const matchPw = document.cookie.match(new RegExp('(^| )' + cookieName + '=([^;]+)'));
            const hasPwCookie = !!matchPw;
            let pwPayload = null;
            let isPwExpired = false;
            if (hasPwCookie) {
                try {
                    const parts = matchPw[2].split('.');
                    if (parts.length === 3) {
                        let b64 = parts[1].replace(/-/g, '+').replace(/_/g, '/');
                        while (b64.length % 4) b64 += '=';
                        pwPayload = JSON.parse(atob(b64));
                        if (pwPayload && pwPayload.exp) {
                            isPwExpired = (pwPayload.exp * 1000) < Date.now();
                        }
                    }
                } catch (e) { }
            }

            // 3. ตรวจสอบ LocalStorage Backup (ถ้ามีค้างอยู่)
            let lsPayload = null;
            let hasLs = false;
            let isLsExpired = false;
            try {
                const lsToken = localStorage.getItem(cookieName);
                if (lsToken) {
                    hasLs = true;
                    const parts = lsToken.split('.');
                    if (parts.length === 3) {
                        let b64 = parts[1].replace(/-/g, '+').replace(/_/g, '/');
                        while (b64.length % 4) b64 += '=';
                        lsPayload = JSON.parse(atob(b64));
                        if (lsPayload && lsPayload.exp) {
                            isLsExpired = (lsPayload.exp * 1000) < Date.now();
                        }
                    }
                }
            } catch (e) { }

            // ต้อง (1) Login อยู่ และ (2) มี Cookie สิทธิ์ (__bwp_sub หรือ __bwp_pw)
            if (!hasLoginCookie || (!hasSubCookie && !hasPwCookie)) {
                return;
            }

            // 4. ตรวจสอบ Meta Tags จาก Server / CDN
            const dgsMetaContent = document.querySelector('meta[name="dgs-content"]');
            const dgsMetaUser = document.querySelector('meta[name="dgs-user"]');
            const metaContent = dgsMetaContent ? dgsMetaContent.content : null;
            const metaUser = dgsMetaUser ? dgsMetaUser.content : null;

            // 5. วิเคราะห์เหตุผลว่าทำไมมีสิทธิ์แล้วยังติดล็อก
            let lockReason = 'UNKNOWN_LOCK';
            if (isPwExpired || isLsExpired) {
                lockReason = 'EXPIRED_TOKEN (Token ใน Cookie หรือ LocalStorage หมดอายุแล้ว)';
            } else if (pwPayload && pwPayload.pw === 0 && pwPayload.sub === 0) {
                lockReason = 'TOKEN_PW_ZERO (มี Token แต่สถานะ pw=0 และ sub=0 ไม่ใช่ Subscriber)';
            } else if (loggedInUserId && pwPayload && pwPayload.uid && String(loggedInUserId) !== String(pwPayload.uid)) {
                lockReason = 'UID_MISMATCH (User ID ที่ Login ไม่ตรงกับ UID ใน Token)';
            } else if (metaUser === 'disable') {
                lockReason = 'CDN_CACHE_MISMATCH (มี Login, มี Cookie สมาชิกครบ แต่ CDN ส่งหน้าแคช disable มา)';
            } else {
                lockReason = 'ALL_TOKENS_VALID_BUT_PAYWALL_TRIGGERED (ข้อมูลครบถ้วนแต่ติดล็อก)';
            }

            const diagPayload = {
                trigger_source: triggerSource || 'unknown',
                lock_reason: lockReason,
                user_id: loggedInUserId || (pwPayload ? pwPayload.uid : null) || (lsPayload ? lsPayload.uid : null) || 'GUEST',
                has_login_cookie: hasLoginCookie,
                has_pw_cookie: hasPwCookie,
                has_sub_cookie: hasSubCookie,
                cookie_pw: pwPayload,
                is_pw_cookie_expired: isPwExpired,
                has_localstorage_pw: hasLs,
                localstorage_pw: lsPayload,
                is_ls_expired: isLsExpired,
                meta_dgs_content: metaContent,
                meta_dgs_user: metaUser,
                page_url: window.location.href,
                referrer: document.referrer || '',
                timestamp: new Date().toISOString()
            };

            const logEndpoint = "/v3/api/log-paywall-diagnostic";
            const bodyStr = JSON.stringify(diagPayload);

            if (typeof navigator !== 'undefined' && typeof navigator.sendBeacon === 'function') {
                const blob = new Blob([bodyStr], { type: 'application/json' });
                navigator.sendBeacon(logEndpoint, blob);
            } else if (typeof fetch === 'function') {
                fetch(logEndpoint, {
                    method: 'POST',
                    headers: { 'Content-Type': 'application/json' },
                    body: bodyStr,
                    keepalive: true
                }).catch(function () { });
            }
        } catch (err) {
            console.warn("[Paywall] logPaywallLockDiagnostic error:", err);
        }
    }

    function initPaywallScrollObserver() {
        // ค้นหา Element ของแถบ Paywall หรือพื้นที่ที่โดนเบลอ (.sticky-blurred-paywall สำหรับ Life, .force_login--popup สำหรับ News)
        const paywallEl = document.querySelector('.sticky-blurred-paywall, .force_login--popup, .paywall-locked-body');
        if (!paywallEl) {
            return;
        }

        // ใช้ Intersection Observer API สำหรับจับความเคลื่อนไหวเมื่อเลื่อนจอมาเจอ Element
        if (typeof IntersectionObserver !== 'undefined') {
            const observer = new IntersectionObserver((entries, obs) => {
                entries.forEach(entry => {
                    if (entry.isIntersecting) {
                        console.log("Paywall popup encountered: User scrolled down and saw the paywall.");
                        logPaywallView("article");
                        logPaywallLockDiagnostic("scroll_blurred_article");
                        obs.disconnect(); // สั่งหยุดจับความเคลื่อนไหวหลังจากบันทึก Log สำเร็จครั้งแรก
                    }
                });
            }, {
                threshold: 0.1 // ทำงานเมื่อ Element โผล่ขึ้นมาในจออย่างน้อย 10%
            });
            observer.observe(paywallEl);
        } else {
            // ระบบสำรองสำหรับบราวเซอร์รุ่นเก่า (ผูก Event Scroll)
            const onScroll = function () {
                const rect = paywallEl.getBoundingClientRect();
                const viewHeight = Math.max(document.documentElement.clientHeight, window.innerHeight);
                if (rect.top >= 0 && rect.top <= viewHeight) {
                    console.log("Paywall popup encountered (fallback): User scrolled down and saw the paywall.");
                    logPaywallView("article");
                    logPaywallLockDiagnostic("scroll_blurred_article_fallback");
                    window.removeEventListener('scroll', onScroll);
                }
            };
            window.addEventListener('scroll', onScroll);
        }
    }

    function initPopupTrigger() {
        // Do not run paywall popup trigger on digital subscription pages
        if (window.location.pathname.indexOf("/digital-subscription") !== -1) {
            return;
        }

        if (window.location.pathname.indexOf("/subscriptions") !== -1) {
            return;
        }

        // Do not run paywall popup trigger on premium publications (ebook) pages
        if (window.location.pathname.indexOf("/premium-publications") !== -1) {
            return;
        }

        // หน้า Postbag: ใช้เฉพาะ Lock Bar Paywall ในหน้าเนื้อหา (ไม่แสดง Popup Modal)
        if (isPostbag) {
            initPaywallScrollObserver();
            return;
        }

        // อ่านค่าสถานะ Paywall และสิทธิ์การใช้งานตรงจาก Meta Tags ที่ส่งมาจาก Server
        const dgsMetaArticle = document.querySelector('meta[name="dgs-content"]');
        const dgsMetaUser = document.querySelector('meta[name="dgs-user"]');

        const isContentLocked = dgsMetaArticle && dgsMetaArticle.content === 'enable';
        const isUserDisabled = dgsMetaUser && dgsMetaUser.content === 'disable';

        // จัดการแสดงผลตามเงื่อนไขของประเภทหน้าจอ (ยกเลิก Section Popup และ Popup ข่าว < 3 เดือน)
        if (isUserDisabled) {
            logPaywallLockDiagnostic("page_load_user_disabled");
            if (isContentLocked) {
                if (typeof g_content_id !== 'undefined' && g_content_id) {
                    // หน้าข่าวเดี่ยวที่โดนล็อก (Print / Online > 3 เดือน): รันตัวตรวจจับการเลื่อนหน้าจอ (Scroll Observer)
                    initPaywallScrollObserver();
                }
            }
        }
    }

    // ปิดการบันทึก Log Action และการ Save ลง Cache (sessionStorage / localStorage) เมื่อกดปุ่ม Subscribe

    document.addEventListener("click", function (e) {
        const btnDefault = e.target.closest('.btn--default');
        const btnBuy = e.target.closest('.btn-buynow, #subscribe_btn, .welcome-btn a, a[href*="/digital-subscription/payment/"], a[href*="Digital_subscription_c/payment/"]');
        const btnModalLogin = e.target.closest('#signinModal .btnsignin, #signinModal .planlogin-desc a');

        const path = window.location.pathname;
        const isDigitalSubPage = path.indexOf("/digital-subscription") !== -1;
        const isSubPage = path.indexOf("/subscriptions") !== -1 || path.indexOf("/subscription") !== -1;

        if (btnDefault || (btnBuy && (isDigitalSubPage || isSubPage)) || (btnModalLogin && (isDigitalSubPage || isSubPage)) || btnBuy) {
            const isArticlePopup = btnDefault && btnDefault.closest('.force_login--popup');
            const isPopupLogin = btnDefault && btnDefault.closest('#popup-login');
            const isEbookPopup = (btnDefault && btnDefault.closest('#popupdgs')) || path.indexOf("/premium-publications") !== -1;
            const isPostbagPage = isPostbag || path.indexOf("/opinion/postbag") !== -1;

            let pageType = 'section';
            let clickContentId = (typeof g_content_id !== 'undefined' && g_content_id) ? g_content_id : "";
            let currentSection = (typeof g_section_name !== 'undefined' && g_section_name) ? g_section_name : "";

            let clickVariant = window.DGS_PAYWALL_VARIANT || '';

            if (isEbookPopup) {
                pageType = 'ebook';
                currentSection = 'ebook';
                clickVariant = window.DGS_PAYWALL_VARIANT || '';
                logPaywallView("ebook", "paywall_cta_click", clickVariant);
            } else if (isPostbagPage) {
                pageType = 'postbag';
                currentSection = 'opinion';
                clickVariant = window.DGS_PAYWALL_VARIANT || '';
                logPaywallView("postbag", "paywall_cta_click", clickVariant);
            } else if (isArticlePopup) {
                pageType = 'article';
                clickVariant = window.DGS_PAYWALL_VARIANT || '';
                logPaywallView("article", "paywall_cta_click", clickVariant);
            } else if (isPopupLogin) {
                pageType = 'article';
                clickVariant = window.DGS_PAYWALL_VARIANT || '';
                logPaywallView("article", "paywall_cta_click", clickVariant);
            } else if (isDigitalSubPage || isSubPage) {
                pageType = 'section';
                currentSection = isDigitalSubPage ? 'digital-subscription' : 'subscription';
                clickVariant = '';
                logPaywallView("section", "paywall_cta_click", "", "", { section_name: currentSection });
            } else {
                // Fallback check based on globally available variables
                pageType = (typeof g_content_id !== 'undefined' && g_content_id) ? 'article' : 'section';
                clickVariant = window.DGS_PAYWALL_VARIANT || '';
                if (!currentSection) {
                    currentSection = (pageType === 'section') ? 'digital-subscription' : '';
                }
                logPaywallView(pageType, "paywall_cta_click", clickVariant);
            }

            if (currentSection === 'topic_main') {
                pageType = 'topic_main';
            } else if (currentSection === 'topic_content') {
                pageType = 'topic_content';
                if (typeof g_topic_id !== 'undefined' && g_topic_id) {
                    clickContentId = g_topic_id;
                }
            }

            if (pageType) {
                const isSubLandingSection = currentSection === 'subscription' || currentSection === 'digital-subscription' || currentSection === 'subscriptions' || currentSection === 'digital-subscriptions';
                const finalVariant = isSubLandingSection ? '' : clickVariant;

                let clickVariantName = '';
                if (!isSubLandingSection) {
                    clickVariantName = window.DGS_PAYWALL_VARIANT_NAME || '';
                    if (!clickVariantName && window.DGS_PAYWALL_WORDINGS_ALL && window.DGS_PAYWALL_WORDINGS_ALL[clickVariant]) {
                        const vObj = window.DGS_PAYWALL_WORDINGS_ALL[clickVariant];
                        clickVariantName = vObj['variant_name'] || '';
                    }
                }

                sessionStorage.setItem('clicked_subscribe_paywall', 'true');
                sessionStorage.setItem('subscribe_9_9_type', pageType);
                sessionStorage.setItem('subscribe_9_9_content_id', clickContentId);
                sessionStorage.setItem('subscribe_9_9_section_name', currentSection);
                sessionStorage.setItem('subscribe_9_9_category_id', (typeof g_category_id !== 'undefined' && g_category_id) ? g_category_id : "");
                sessionStorage.setItem('subscribe_9_9_variant', finalVariant);
                sessionStorage.setItem('subscribe_9_9_variant_name', clickVariantName);

                // Backup to localStorage in case of bank redirect opening in a new tab/session
                localStorage.setItem('subscribe_9_9_type_backup', pageType);
                localStorage.setItem('subscribe_9_9_content_id_backup', clickContentId);
                localStorage.setItem('subscribe_9_9_section_name_backup', currentSection);
                localStorage.setItem('subscribe_9_9_category_id_backup', (typeof g_category_id !== 'undefined' && g_category_id) ? g_category_id : "");
                localStorage.setItem('subscribe_9_9_variant_backup', finalVariant);
                localStorage.setItem('subscribe_9_9_variant_name_backup', clickVariantName);
            }
        }
    });


    function checkCheckoutStart() {
        if (window.location.pathname.indexOf("/digital-subscription/payment/") !== -1) {
            if (sessionStorage.getItem('clicked_subscribe_paywall') === 'true') {
                sessionStorage.removeItem('clicked_subscribe_paywall');

                const pageType = sessionStorage.getItem('subscribe_9_9_type') || localStorage.getItem('subscribe_9_9_type_backup') || 'section';
                const contentId = sessionStorage.getItem('subscribe_9_9_content_id') || localStorage.getItem('subscribe_9_9_content_id_backup');
                const sectionName = sessionStorage.getItem('subscribe_9_9_section_name') || localStorage.getItem('subscribe_9_9_section_name_backup') || 'digital-subscription';
                const categoryId = sessionStorage.getItem('subscribe_9_9_category_id') || localStorage.getItem('subscribe_9_9_category_id_backup');

                const isSubLandingSection = sectionName === 'subscription' || sectionName === 'digital-subscription' || sectionName === 'subscriptions' || sectionName === 'digital-subscriptions';
                const variant = isSubLandingSection ? '' : (sessionStorage.getItem('subscribe_9_9_variant') || localStorage.getItem('subscribe_9_9_variant_backup') || '');
                const variantName = isSubLandingSection ? '' : (sessionStorage.getItem('subscribe_9_9_variant_name') || localStorage.getItem('subscribe_9_9_variant_name_backup') || '');

                logPaywallView(pageType, 'checkout_start', variant, variantName, {
                    content_id: contentId,
                    section_name: sectionName,
                    category_id: categoryId,
                    topic_id: pageType === 'topic_content' ? contentId : null
                });
                console.log("Logged checkout_start action for section: " + sectionName);
            }
        }
    }

    function checkPurchaseComplete() {
        if (window.location.pathname.indexOf("/digital-subscription/payment/success/") !== -1) {
            const urlParams = new URLSearchParams(window.location.search);
            const ref = urlParams.get('Ref');
            if (ref) {
                const sessionKey = 'purchase_complete_logged_' + ref;
                if (sessionStorage.getItem(sessionKey) !== 'true' && localStorage.getItem(sessionKey) !== 'true') {
                    // Set immediately to prevent duplicate async trigger
                    sessionStorage.setItem(sessionKey, 'true');
                    localStorage.setItem(sessionKey, 'true');

                    const pageType = sessionStorage.getItem('subscribe_9_9_type') || localStorage.getItem('subscribe_9_9_type_backup') || 'section';
                    const contentId = sessionStorage.getItem('subscribe_9_9_content_id') || localStorage.getItem('subscribe_9_9_content_id_backup');
                    const sectionName = sessionStorage.getItem('subscribe_9_9_section_name') || localStorage.getItem('subscribe_9_9_section_name_backup') || 'digital-subscription';
                    const categoryId = sessionStorage.getItem('subscribe_9_9_category_id') || localStorage.getItem('subscribe_9_9_category_id_backup');

                    const isSubLandingSection = sectionName === 'subscription' || sectionName === 'digital-subscription' || sectionName === 'subscriptions' || sectionName === 'digital-subscriptions';
                    const variant = isSubLandingSection ? '' : (sessionStorage.getItem('subscribe_9_9_variant') || localStorage.getItem('subscribe_9_9_variant_backup') || '');
                    const variantName = isSubLandingSection ? '' : (sessionStorage.getItem('subscribe_9_9_variant_name') || localStorage.getItem('subscribe_9_9_variant_name_backup') || '');

                    logPaywallView(pageType, 'purchase_complete', variant, variantName, {
                        content_id: contentId,
                        section_name: sectionName,
                        category_id: categoryId,
                        topic_id: pageType === 'topic_content' ? contentId : null
                    });
                    console.log("Logged purchase_complete action with Ref: " + ref + " for section: " + sectionName);

                    // Clear subscription flow context from sessionStorage
                    sessionStorage.removeItem('subscribe_9_9_type');
                    sessionStorage.removeItem('subscribe_9_9_content_id');
                    sessionStorage.removeItem('subscribe_9_9_section_name');
                    sessionStorage.removeItem('subscribe_9_9_category_id');
                    sessionStorage.removeItem('pw_free_checked');
                    sessionStorage.removeItem('subscribe_9_9_variant');
                    sessionStorage.removeItem('subscribe_9_9_variant_name');

                    // Clear backup from localStorage
                    localStorage.removeItem('subscribe_9_9_type_backup');
                    localStorage.removeItem('subscribe_9_9_content_id_backup');
                    localStorage.removeItem('subscribe_9_9_section_name_backup');
                    localStorage.removeItem('subscribe_9_9_category_id_backup');
                    localStorage.removeItem('subscribe_9_9_variant_backup');
                    localStorage.removeItem('subscribe_9_9_variant_name_backup');
                }
            }
        }
    }

    function initSubscriptionModalLog() {
        const isDigitalSub = window.location.pathname.indexOf("/digital-subscription") !== -1;
        const isSub = window.location.pathname.indexOf("/subscriptions") !== -1 || window.location.pathname.indexOf("/subscription") !== -1;

        if (!isDigitalSub && !isSub) {
            return;
        }

        const sectionName = isDigitalSub ? "digital-subscription" : "subscription";
        const actionShow = isDigitalSub ? "digital-subscriptions_popup_signin" : "subscriptions_popup_signin";
        const actionLogin = isDigitalSub ? "digital-subscriptions_login" : "subscriptions_login_click";
        const actionClose = isDigitalSub ? "digital-subscriptions_popup_close" : "subscriptions_popup_close";

        let logged = false;
        const handleModalShow = function () {
            if (logged) return;
            logged = true;
            setTimeout(function () { logged = false; }, 1000);

            logPaywallView("section", actionShow, null, null, {
                content_id: "",
                section_name: sectionName,
                category_id: "null"
            });
        };

        if (typeof $ !== 'undefined') {
            $('#signinModal').on('show.bs.modal', handleModalShow);
        } else {
            const modalEl = document.getElementById('signinModal');
            if (modalEl) {
                modalEl.addEventListener('show.bs.modal', handleModalShow);
            }
        }

        const modalEl = document.getElementById('signinModal');
        if (modalEl) {
            modalEl.addEventListener('click', function (e) {
                const isSignIn = e.target.closest('.btnsignin');
                const isRegister = e.target.closest('.planlogin-desc a');
                const isClose = e.target.closest('.closex');

                if (isSignIn || isRegister) {
                    logPaywallView("section", actionLogin, null, null, {
                        content_id: "",
                        section_name: sectionName,
                        category_id: "null"
                    });
                } else if (isClose) {
                    logPaywallView("section", actionClose, null, null, {
                        content_id: "",
                        section_name: sectionName,
                        category_id: "null"
                    });
                }
            });
        }
    }



    function initPaywallCopyProtection() {
        // If developer cookie bpdgs_dev = 1 is set, bypass copy protection for testing
        if (getCookie('bpdgs_dev') === '1') {
            console.log("Paywall Copy Protection bypassed (bpdgs_dev = 1)");
            return;
        }

        const dgsMetaArticle = document.querySelector('meta[name="dgs-content"]');
        const isContentLocked = dgsMetaArticle && dgsMetaArticle.getAttribute('content') === 'enable';

        if (!isContentLocked) {
            return;
        }

        // 1. Inject CSS to disable text selection on article content elements
        const style = document.createElement('style');
        style.innerHTML = `
            .article-content, #article-content, .box-postbag--user {
                -webkit-user-select: none !important;
                -moz-user-select: none !important;
                -ms-user-select: none !important;
                user-select: none !important;
            }
        `;
        document.head.appendChild(style);

        // 2. Attach event listeners to prevent copy, cut, right-click context menu, and dragging
        const targetElements = document.querySelectorAll('#article-content, .article-content, .box-postbag--user');
        targetElements.forEach(function (el) {
            el.addEventListener('copy', function (e) {
                e.preventDefault();
                return false;
            });
            el.addEventListener('cut', function (e) {
                e.preventDefault();
                return false;
            });
            el.addEventListener('contextmenu', function (e) {
                e.preventDefault();
                return false;
            });
            el.addEventListener('dragstart', function (e) {
                e.preventDefault();
                return false;
            });
        });

        // 3. Prevent keyboard copy/select shortcuts (Ctrl+C, Cmd+C, Ctrl+A, Cmd+A) when focused/selected inside article
        document.addEventListener('keydown', function (e) {
            if ((e.ctrlKey || e.metaKey) && (e.key === 'c' || e.key === 'C' || e.key === 'a' || e.key === 'A')) {
                const selection = window.getSelection();
                if (selection && selection.rangeCount > 0) {
                    let container = selection.getRangeAt(0).commonAncestorContainer;
                    if (container.nodeType === 3) container = container.parentNode;
                    if (container && container.closest && container.closest('#article-content, .article-content, .box-postbag--user')) {
                        e.preventDefault();
                        return false;
                    }
                }
            }
        });
    }

    function hasActiveSubscriptionFromPaywallCookie() {
        try {
            // 1. ตรวจสอบจากคุกกี้สถานะหน้าบ้าน _bp_pdgs (ปลอดภัย 100% ตามมาตรฐาน Dual-Cookie)
            const subCookie = getCookie(window._s_c || "_bp_pdgs");
            if (subCookie === "1") {
                return true;
            }

            // Fallback เผื่อสภาพแวดล้อม dev ที่คุกกี้ __bwp_pw ยังอ่านได้จาก JS
            const rawCookie = getCookie(window._p_c || "__bwp_pw");
            if (rawCookie) {
                const parts = rawCookie.split('.');
                if (parts.length === 3) {
                    let b64 = parts[1].replace(/-/g, '+').replace(/_/g, '/');
                    while (b64.length % 4) b64 += '=';
                    const payload = JSON.parse(atob(b64));
                    if (payload && (payload.pw === 1 || payload.sub === 1)) {
                        if (!payload.exp || (payload.exp * 1000) > Date.now()) {
                            return true;
                        }
                    }
                }
            }

            // 2. ตรวจสอบจาก meta tag dgs-user
            const dgsMetaUser = document.querySelector('meta[name="dgs-user"]');
            if (dgsMetaUser && dgsMetaUser.content === 'enable') {
                return true;
            }

            return false;
        } catch (e) {
            return false;
        }
    }

    function checkCdnSubscriberCacheMismatch() {
        const isSubscriber = hasActiveSubscriptionFromPaywallCookie();
        const dgsMetaArticle = document.querySelector('meta[name="dgs-content"]');
        const isContentLocked = dgsMetaArticle && dgsMetaArticle.content === 'enable';
        const dgsMetaUser = document.querySelector('meta[name="dgs-user"]');
        const isUserDisabled = dgsMetaUser && dgsMetaUser.content === 'disable';
        const pageKey = 'cdn_bypass_' + window.location.pathname;

        // ถ้าผู้ใช้เป็นสมาชิกจาก cookie _bp_pdgs หรือ __bwp_pw แต่หน้าเว็บที่ได้จาก CDN เป็นหน้าติดล็อกของผู้ใช้ทั่วไป
        if (isSubscriber && isContentLocked && isUserDisabled) {
            if (!sessionStorage.getItem(pageKey)) {
                sessionStorage.setItem(pageKey, '1');
                console.warn("CDN Subscriber Cache Mismatch detected Reloading to fetch live content from origin...");

                window.location.reload();
                return true;
            }
        } else if (dgsMetaUser && dgsMetaUser.content === 'enable') {
            sessionStorage.removeItem(pageKey);
        }
        return false;
    }

    /**
     * กู้คืนสิทธิ์สมาชิกผ่าน Single Source of Truth (/member/get_member_login)
     * ไม่ยิง /api/refresh-paywall-cookie ซ้ำซ้อน แต่ดักฟังผลจาก g_member ใน Header
     * หากพบว่าเป็นสมาชิก (is_subscriber: true) แต่หน้าเว็บปัจจุบันติดแคช Inox CDN หน้าล็อก -> สั่ง Reload เพื่อ Bypass CDN
     */
    function checkAndRecoverPaywallCookie() {
        const loginCookieName = window.BKP_COOKIE_MEMBER || "__bwp";
        const hasLoginCookie = document.cookie.indexOf(loginCookieName + '=') !== -1;
        const subCookie = getCookie(window._s_c || "_bp_pdgs");
        const hasSubCookie = (subCookie === "1");
        const pwCookieName = window._p_c || "__bwp_pw";
        const hasPwCookie = document.cookie.indexOf(pwCookieName + '=') !== -1;

        // ถ้ามีคุกกี้สิทธิ์อยู่แล้ว ไม่ต้องทำอะไร
        if (hasSubCookie || hasPwCookie) {
            return false;
        }

        // ตรวจสอบเฉพาะเมื่อผู้ใช้เข้าสู่ระบบอยู่ (มีคุกกี้ Login) และหน้านี้ติดล็อก
        const dgsMetaArticle = document.querySelector('meta[name="dgs-content"]');
        const isContentLocked = dgsMetaArticle && dgsMetaArticle.content === 'enable';
        const dgsMetaUser = document.querySelector('meta[name="dgs-user"]');
        const isUserDisabled = !dgsMetaUser || dgsMetaUser.content === 'disable';

        if (hasLoginCookie && (isContentLocked || isUserDisabled)) {
            const pageRecoveryKey = 'pw_recovery_' + window.location.pathname;
            if (sessionStorage.getItem(pageRecoveryKey)) {
                return false;
            }

            const triggerReloadIfSubscriber = function () {
                const isSub = (window.g_member && window.g_member.is_subscriber) || hasActiveSubscriptionFromPaywallCookie();
                if (isSub) {
                    console.log("Paywall subscriber confirmed via get_member_login. Reloading to bypass CDN cache...");
                    sessionStorage.setItem(pageRecoveryKey, '1');
                    window.location.reload();
                }
            };

            // ผูกกับ g_member.get_member_login ใน Header (Single Source of Truth) เพื่อไม่ให้ยิงซ้ำ
            if (window.g_member && typeof window.g_member.get_member_login === 'function') {
                window.g_member.get_member_login(function () {
                    triggerReloadIfSubscriber();
                });
                return true;
            }
        }
        return false;
    }

    /**
     * ล้าง Token ออกจาก localStorage เพื่อความปลอดภัยตามมาตรฐานสากล (Token ต้องอยู่ใน HttpOnly Cookie เท่านั้น)
     */
    function cleanupPaywallLocalStorage() {
        try {
            const cookieName = window._p_c || "__bwp_pw";
            if (localStorage.getItem(cookieName)) {
                localStorage.removeItem(cookieName);
            }
        } catch (e) {
            // silent fail
        }
    }

    // Initialize trigger immediately on DOM ready without delay to prevent Flash of Content
    function initDgsPaywall() {
        // Clean up legacy _t parameter from URL bar if present to keep URL clean
        if (window.location.search && window.location.search.indexOf('_t=') !== -1 && window.history && window.history.replaceState) {
            const cleanSearch = window.location.search.replace(/([?&])_t=\d+(&|$)/, '$1').replace(/[?&]$/, '');
            const cleanUrl = window.location.pathname + cleanSearch + window.location.hash;
            window.history.replaceState(null, document.title, cleanUrl);
        }

        cleanupPaywallLocalStorage();
        if (checkCdnSubscriberCacheMismatch()) {
            return;
        }
        checkAndRecoverPaywallCookie();
        initPopupTrigger();
        initSubscriptionModalLog();
        checkCheckoutStart();
        checkPurchaseComplete();
        initPaywallCopyProtection();
    }

    if (document.readyState === "complete" || document.readyState === "interactive") {
        initDgsPaywall();
    } else {
        document.addEventListener("DOMContentLoaded", initDgsPaywall);
    }
})();