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Bangumi高清图片

同时支持封面和角色图高清化，保持安全校验

// ==UserScript==
// @name         Bangumi高清图片
// @namespace    rabbitohh.top
// @version      1.3
// @description  同时支持封面和角色图高清化，保持安全校验
// @author       rabbitohh & deepseek
// @match        *://bgm.tv/subject/*
// @match        *://bgm.tv/user/*
// @match        *://bangumi.tv/subject/*
// @match        *://bangumi.tv/user/*
// @match        *://chii.in/subject/*
// @match        *://chii.in/user/*
// @grant        none
// @run-at       document-idle
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    const REPLACE_RULES = [
        {
            match: /(\/pic\/cover\/)c\//,
            replace: '$1l/',
            insert: '/r/400'
        },
        {
            match: /(\/pic\/crt\/)g\//,
            replace: '$1m/',
            insert: ''
        }
    ];

    function enhancedReplace(url) {
        let newUrl = url;
        for (const rule of REPLACE_RULES) {
            if (rule.match.test(newUrl)) {
                newUrl = newUrl
                    .replace(/\/\/lain\.bgm\.tv\//, `//lain.bgm.tv${rule.insert}/`)
                    .replace(rule.match, rule.replace);
                break;
            }
        }
        return newUrl;
    }
    function safeUpgradeImages() {
        document.querySelectorAll('img[src*="lain.bgm.tv"]:not([data-upgraded])').forEach(img => {
            try {
                const original = img.src;
                const newSrc = enhancedReplace(original);

                if (newSrc === original) return;

                const testImg = new Image();
                testImg.onload = function() {
                    img.src = newSrc;
                    img.setAttribute('data-upgraded', 'true');
                    img.style.cssText = 'max-width: 100%; height: auto;';
                };
                testImg.onerror = function() {
                    console.warn('图片加载失败，保留原始地址:', original);
                    img.src = original;
                };
                testImg.src = newSrc;

            } catch (error) {
                console.error('图片处理失败:', error);
            }
        });
    }

    function init() {
        setTimeout(safeUpgradeImages, 2000);
        document.addEventListener('DOMContentLoaded', safeUpgradeImages);
        window.addEventListener('load', safeUpgradeImages);
    }

    let isProcessing = false;
    const safeObserver = new MutationObserver((mutations) => {
        if (!isProcessing) {
            isProcessing = true;
            requestIdleCallback(() => {
                safeUpgradeImages();
                isProcessing = false;
            }, { timeout: 1000 });
        }
    });

    safeObserver.observe(document.body, {
        childList: true,
        subtree: true,
        attributes: false
    });

    init();
})();