/* Copyright (c) 2025-2026 马建军. All rights reserved.
 * 专有软件 — 未经授权禁止复制、传播、转售。
 * 详见 LICENSE.zh-CN.txt
 */
(function () {
    function isCoarsePointer() {
        return window.matchMedia('(hover: none) and (pointer: coarse)').matches;
    }

    function isTabletUa() {
        var ua = navigator.userAgent || '';
        if (/iPad/i.test(ua)) return true;
        if (navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1) return true;
        if (/Android/i.test(ua) && !/Mobile/i.test(ua)) return true;
        if (/Tablet|PlayBook|Silk/i.test(ua)) return true;
        return false;
    }

    function isPhoneUa() {
        var ua = navigator.userAgent || '';
        if (isTabletUa()) return false;
        if (/iPhone|iPod/i.test(ua)) return true;
        if (/Android/i.test(ua) && /Mobile/i.test(ua)) return true;
        if (/HarmonyOS|OpenHarmony/i.test(ua) && !/Tablet/i.test(ua)) return true;
        if (/Mobile|Windows Phone|IEMobile|BlackBerry/i.test(ua)) return true;
        return false;
    }

    function screenShortSide() {
        return Math.min(window.screen.width || 0, window.screen.height || 0);
    }

    function detectLayout() {
        var shortSide = screenShortSide();
        var coarse = isCoarsePointer();

        if (isPhoneUa()) return 'phone';
        if (isTabletUa()) return 'tablet';

        if (shortSide > 0 && shortSide < 600) return 'phone';
        if (shortSide >= 600 && shortSide <= 1100 && coarse) return 'tablet';
        if (window.innerWidth <= 767) return 'phone';
        if (window.innerWidth <= 1100 && coarse) return 'tablet';
        return 'desktop';
    }

    function updateLayoutState() {
        var root = document.documentElement;
        var layout = detectLayout();
        var isPhone = layout === 'phone';
        var landscape = window.innerWidth > window.innerHeight;

        root.dataset.layout = layout;
        root.dataset.mobile = isPhone ? '1' : '0';
        root.dataset.orientation = isPhone ? 'portrait' : (landscape ? 'landscape' : 'portrait');
        root.classList.toggle('layout-phone', isPhone);
        root.classList.toggle('layout-tablet', layout === 'tablet');

        var nav = document.getElementById('site-nav');
        var userBar = document.querySelector('.user-bar');
        if (nav && userBar && isPhone) {
            nav.setAttribute('data-user-label', (userBar.textContent || '').replace(/\s+/g, ' ').trim());
        }

        var overlay = document.getElementById('orientation-lock');
        var msg = document.getElementById('orientation-lock-msg');
        if (!overlay) return;

        if (isPhone) {
            if (landscape) {
                overlay.hidden = false;
                if (msg) msg.textContent = '请竖屏使用';
            } else {
                overlay.hidden = true;
            }
            return;
        }

        if (layout === 'tablet' && root.dataset.orientation === 'portrait') {
            overlay.hidden = false;
            if (msg) msg.textContent = '平板请旋转至横屏使用';
            return;
        }

        overlay.hidden = true;
    }

    window.qihuoLayout = {
        isPhone: function () { return document.documentElement.dataset.mobile === '1'; },
        isTablet: function () { return document.documentElement.dataset.layout === 'tablet'; },
        refresh: updateLayoutState,
    };

    updateLayoutState();
    window.addEventListener('resize', updateLayoutState);
    window.addEventListener('orientationchange', function () {
        setTimeout(updateLayoutState, 150);
    });
    document.addEventListener('visibilitychange', function () {
        if (!document.hidden) updateLayoutState();
    });
})();