// ==UserScript==
// @name         Bilibili主页显示优化
// @namespace    http://tampermonkey.net/
// @version      1
// @description  删除bilibili主页的广告、轮播图、非视频卡片（直播卡片等）
// @match        https://www.bilibili.com/
// @grant        none
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    // 从localStorage获取保存的状态，如果没有保存过，默认为false（关闭状态）
    let isAdRemovalEnabled = localStorage.getItem('bilibiliAdRemovalEnabled') === 'true';
    let isSwiperRemovalEnabled = localStorage.getItem('bilibiliSwiperRemovalEnabled') === 'true';
    let isNonVideoCardRemovalEnabled = localStorage.getItem('bilibiliNonVideoCardRemovalEnabled') === 'true';

    function removeAds() {
        if (!isAdRemovalEnabled) return;

        // 处理被feed-card包裹的情况
        const feedCards = document.querySelectorAll('.feed-card');
        feedCards.forEach(card => {
            const videoCard = card.querySelector('.bili-video-card.is-rcmd');
            if (videoCard && !videoCard.classList.contains('enable-no-interest')) {
                card.remove();
            }
        });

        // 处理直接的bili-video-card
        const directVideoCards = document.querySelectorAll('.bili-video-card.is-rcmd:not(.enable-no-interest)');
        directVideoCards.forEach(card => {
            // 如果父元素不是feed-card，直接删除这个bili-video-card
            if (!card.parentElement.classList.contains('feed-card')) {
                card.remove();
            }
        });
    }

    function removeSwiper() {
        if (!isSwiperRemovalEnabled) return;

        // 删除轮播图
        const swiper = document.querySelector('.recommended-swipe.grid-anchor');
        if (swiper) {
            swiper.remove();
        }

        // 删除特定的CSS规则
        const style = document.createElement('style');
        style.textContent = `
            .recommended-container_floor-aside .container>*:nth-of-type(n + 8) {
                margin-top: 0 !important;
            }
            .recommended-container_floor-aside .container.is-version8>*:nth-of-type(n + 13) {
                margin-top: 0 !important;
            }
        `;
        document.head.appendChild(style);
    }

    function removeNonVideoCards() {
        if (!isNonVideoCardRemovalEnabled) return;

        // 删除 floor-single-card 类的元素
        const nonVideoCards = document.querySelectorAll('.floor-single-card');
        nonVideoCards.forEach(card => {
            card.remove();
        });

        // 删除 bili-live-card 类的元素（直播卡片）
        const liveCards = document.querySelectorAll('.bili-live-card');
        liveCards.forEach(card => {
            card.remove();
        });
    }

    // 创建设置按钮和开关控件
    function createSettingsButton() {
        const settingsButton = document.createElement('button');
        settingsButton.textContent = '设置';
        settingsButton.style.cssText = `
            position: fixed;
            top: 2%;
            right: 27%;
            z-index: 10000;
            padding: 5px 10px;
            background-color: #00a1d6;
            color: white;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        `;
        document.body.appendChild(settingsButton);

        const toggleContainer = document.createElement('div');
        toggleContainer.style.cssText = `
            position: fixed;
            top: 6%;
            right: 21%;
            z-index: 9999;
            background-color: white;
            padding: 10px;
            border-radius: 5px;
            box-shadow: 0 0 5px rgba(0,0,0,0.3);
            display: none;
        `;
        toggleContainer.innerHTML = `
            <label style="display: block; margin-bottom: 10px;">
                <input type="checkbox" id="adRemovalToggle" ${isAdRemovalEnabled ? 'checked' : ''}>
                移除广告
            </label>
            <label style="display: block; margin-bottom: 10px;">
                <input type="checkbox" id="swiperRemovalToggle" ${isSwiperRemovalEnabled ? 'checked' : ''}>
                移除轮播图
            </label>
            <label style="display: block;">
                <input type="checkbox" id="nonVideoCardRemovalToggle" ${isNonVideoCardRemovalEnabled ? 'checked' : ''}>
                移除视频以外的其他卡片
            </label>
        `;
        document.body.appendChild(toggleContainer);

        settingsButton.addEventListener('click', function() {
            toggleContainer.style.display = toggleContainer.style.display === 'none' ? 'block' : 'none';
        });

        // 添加广告移除开关事件监听器
        const adCheckbox = document.getElementById('adRemovalToggle');
        adCheckbox.addEventListener('change', function() {
            isAdRemovalEnabled = this.checked;
            localStorage.setItem('bilibiliAdRemovalEnabled', isAdRemovalEnabled);
            if (isAdRemovalEnabled) {
                removeAds();
            } else {
                location.reload();
            }
        });

        // 添加轮播图移除开关事件监听器
        const swiperCheckbox = document.getElementById('swiperRemovalToggle');
        swiperCheckbox.addEventListener('change', function() {
            isSwiperRemovalEnabled = this.checked;
            localStorage.setItem('bilibiliSwiperRemovalEnabled', isSwiperRemovalEnabled);
            if (isSwiperRemovalEnabled) {
                removeSwiper();
            } else {
                location.reload();
            }
        });

        // 添加非视频卡片移除开关事件监听器
        const nonVideoCardCheckbox = document.getElementById('nonVideoCardRemovalToggle');
        nonVideoCardCheckbox.addEventListener('change', function() {
            isNonVideoCardRemovalEnabled = this.checked;
            localStorage.setItem('bilibiliNonVideoCardRemovalEnabled', isNonVideoCardRemovalEnabled);
            if (isNonVideoCardRemovalEnabled) {
                removeNonVideoCards();
            } else {
                location.reload();
            }
        });
    }

    // 初始执行
    createSettingsButton();
    if (isAdRemovalEnabled) {
        removeAds();
    }
    if (isSwiperRemovalEnabled) {
        removeSwiper();
    }
    if (isNonVideoCardRemovalEnabled) {
        removeNonVideoCards();
    }

    // 创建一个MutationObserver来监视DOM变化
    const observer = new MutationObserver((mutations) => {
        mutations.forEach((mutation) => {
            if (mutation.type === 'childList') {
                removeAds();
                removeSwiper();
                removeNonVideoCards();
            }
        });
    });

    // 配置观察选项
    const config = { childList: true, subtree: true };

    // 开始观察文档主体
    observer.observe(document.body, config);
})();