const act = {
    template: /*language=HTML*/ `
        <!-- 活动 -->
        <div class="activity-section-wrapper">
            <div class="section-act">
                <!-- Swiper容器 -->

                <div v-if="actList && actList.length > 0" class="activity-swiper-container">
                    <!-- 活动数据 - Swiper -->
                    <div ref="activitySwiper" class="swiper activity-swiper">
                        <div class="swiper-wrapper">
                            <div class="swiper-slide" v-for="(activity, index) in actList" :key="activity.id">
                                <div class="item" role="button" tabindex="0" @click="go(activity)" @keydown.enter="go(activity)" @keydown.space.prevent="go(activity)">
                                    <div class="img-box">
                                        <el-image :src="activity.cover" fit="cover" :alt="activity.name">
                                            <div slot="error" class="portal-cover-empty"><i class="fa fa-picture-o" aria-hidden="true"></i><span>暂无图片</span></div>
                                        </el-image>
                                        <span class="status" :class="{'status-ended': getStatusText(activity) === '已结束', 'status-upcoming': getStatusText(activity) === '未开始'}">
                                       {{getStatusText(activity)}}
                                    </span>
                                    </div>
                                    <h4 class="title" :title="activity.name">
                                        {{ activity.name}}
                                    </h4>
                                    <!--报名时间-->
                                    <div class="time">
                                        <p :title="[activity.startDate, activity.endDate].filter(Boolean).join(' 至 ')">
                                            <i class="fa fa-clock-o"></i>
                                            {{ formatActivityDate(activity.startDate) }} 至 {{ formatActivityDate(activity.endDate) }}
                                        </p>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>

                    <!-- 导航按钮 -->
                    <button type="button" ref="nextButton" class="swiper-button-next" aria-label="下一组活动"></button>
                    <button type="button" ref="prevButton" class="swiper-button-prev" aria-label="上一组活动"></button>

                    <!-- 进度条 -->
                    <div ref="pagination" class="swiper-pagination"></div>
                </div>

                <div v-else class="no-activity-placeholder">
                    <div class="icon"><i class="fa fa-calendar" aria-hidden="true"></i></div>
                    <p>暂无近期活动</p>
                    <p class="subtext">敬请关注后续通知</p>
                </div>

            </div>
        </div>
    `,
    data() {
        return {
            actList: [],
            swiper: null
        }
    },
    methods: {
        updateNavigationPosition() {
            const swiperElement = this.$refs.activitySwiper
            const cover = swiperElement && swiperElement.querySelector('.img-box')
            if (!cover) return
            // 按实际封面高度定位，避免标题换行或响应式列数变化导致箭头偏移。
            const container = swiperElement.parentElement
            const top = cover.getBoundingClientRect().top - container.getBoundingClientRect().top + cover.offsetHeight / 2
            ;[this.$refs.prevButton, this.$refs.nextButton].forEach(button => {
                if (button) button.style.top = top + 'px'
            })
        },
        formatActivityDate(value) {
            return value ? this.$moment(value).format('YYYY-MM-DD') : '待定'
        },
        browseNext() {
            if (!this.swiper) return
            this.swiper.isEnd ? this.swiper.slideTo(0) : this.swiper.slideNext()
        },
        /*查询活动*/
        listAct() {
            this.$axios.post("/platform/home/listHomeActivity").then((res) => {
                if (res.code === 0) {
                    // for (let i = 0; i < 10; i++) {
                    //     this.actList = this.actList.concat(res.data)
                    // }
                    this.actList = res.data
                    // 数据加载完成后初始化Swiper
                    this.$nextTick(() => {
                        this.initSwiper()
                    })
                }
            })
        },
        /*初始化Swiper*/
        initSwiper() {
            if (this.swiper) {
                this.swiper.destroy(true, true)
                this.swiper = null
            }
            const swiperElement = this.$refs.activitySwiper
            if (!swiperElement) {
                return
            }
            // 仅操作当前组件的轮播节点，避免页面其他轮播或尺寸观察器影响卡片宽度。
            this.swiper = new Swiper(swiperElement, {
                slidesPerView: 1,
                spaceBetween: 18,
                centeredSlides: false,
                loop: false,
                watchOverflow: true,
                // 双栏中的活动按容器宽度排布，避免用整个窗口宽度挤出过多卡片。
                breakpointsBase: 'container',
                observer: false,
                observeParents: false,
                // 页面内容加载后可能出现滚动条，需重新计算列宽，避免末张封面及圆角被裁切。
                resizeObserver: true,
                roundLengths: true,
                on: {
                    init: () => this.$nextTick(() => this.updateNavigationPosition()),
                    resize: () => this.$nextTick(() => this.updateNavigationPosition()),
                    slidesUpdated: () => this.$nextTick(() => this.updateNavigationPosition()),
                },
                // 鼠标停留在活动区域时可横向浏览，到首尾后释放页面滚动。
                mousewheel: {
                    enabled: true,
                    forceToAxis: true,
                    releaseOnEdges: true,
                    sensitivity: 0.8,
                },
                navigation: {
                    nextEl: this.$refs.nextButton,
                    prevEl: this.$refs.prevButton,
                },
                pagination: {
                    el: this.$refs.pagination,
                    type: 'progressbar',
                },
                breakpoints: {
                    480: {
                        slidesPerView: 2,
                    },
                    740: {
                        slidesPerView: 3,
                    }
                }
            })
        },

        // 活动状态
        getStatusText(item) {
            if (this.$moment().unix() > this.$moment(item.endDate).unix()) {
                return "已结束"
            } else if (this.$moment().unix() < this.$moment(item.startDate).unix()) {
                return "未开始"
            } else {
                return "进行中"
            }
        },

        go(act) {
            if (!act.url) {
                this.$message.warning("管理员未配置活动链接")
                return
            }
            if (act.url === "/platform/activity/apply"
                && !this.$auth.hasRoleOr(["SYSADMIN", "SCHOOL_UNION_ADMIN", "BRANCH_UNION_CHAIRMAN", "BRANCH_UNION_WENTI_SPORTS"])) {
                return this.$message.warning("PC端暂未开放报名，请前往移动端报名！")

            }
            window.open(act.url)
        }
    },
    mounted() {
        this.listAct()
    },
    beforeDestroy() {
        if (this.swiper) {
            this.swiper.destroy(true, true)
            this.swiper = null
        }
    },
    style: /*language=CSS*/ `
        .activity-section-wrapper {
            width: 100%;
            min-width: 0;
            max-width: 100%;
            box-sizing: border-box;
            overflow: hidden;
        }

        .section-act {
            width: 100%;
            min-width: 0;
            max-width: 100%;
        }

        .section-act .section-act-title span {
            font-size: 30px;
            color: #000000;
            display: block;
            font-weight: bold;
            position: relative;
            text-align: center;
            padding: 40px 0;
        }

        /*.section-act .section-act-title span:hover {
            color: var(--color-primary);
            cursor: pointer;
        }*/

        /deep/ .section-act .section-act-title span::before {
            content: '';
            width: 24px;
            height: 11px;
            background: url(https://www.ncu.edu.cn/images/titl.svg) no-repeat center;
            background-size: 24px 11px;
            display: inline-block;
            margin-right: 0;
            vertical-align: middle;
        }

        /deep/ .section-act .section-act-title span::after {
            content: '';
            width: 24px;
            height: 11px;
            background: url(https://www.ncu.edu.cn/images/titr.svg) no-repeat center;
            background-size: 24px 11px;
            display: inline-block;
            margin-left: 0;
            vertical-align: middle;
        }

        /* Swiper容器样式 */
        .activity-swiper-container {
            position: relative;
            width: 100%;
            min-width: 0;
            max-width: 100%;
            box-sizing: border-box;
            padding: 9px 54px 12px;
            /*margin-top: 30px;*/
            overflow: hidden;
        }

        .activity-swiper {
            width: 100%;
            min-width: 0;
            /*padding: 0 50px 20px 50px;*/
            overflow: hidden;
        }

        .activity-swiper .swiper-slide {
            height: auto;
            min-width: 0;
        }

        /* 导航按钮样式 */
        .activity-swiper-container .swiper-button-next,
        .activity-swiper-container .swiper-button-prev {
            color: var(--color-primary);
            background: white;
            width: 40px;
            height: 40px;
            top: 72px;
            margin-top: 0;
            border-radius: 50%;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
        }

        .activity-swiper-container .swiper-button-next:hover,
        .activity-swiper-container .swiper-button-prev:hover {
            background: var(--color-primary);
            color: white;
            transform: scale(1.1);
        }

        /deep/ .activity-swiper-container .swiper-button-next::after,
        /deep/ .activity-swiper-container .swiper-button-prev::after {
            font-size: 16px;
            font-weight: bold;
        }

        /* 进度条不展示，活动通过左右箭头或区域内滚轮浏览。 */
        .activity-swiper-container .swiper-pagination {
            display: none;
        }

        .activity-swiper-container .swiper-pagination-progressbar {
            background: #e0e0e0;
            border-radius: 2px;
        }

        .activity-swiper-container .swiper-pagination-progressbar-fill {
            background: var(--color-primary);
            border-radius: 2px;
        }

        .activity-swiper .swiper-slide .item {
            height: auto;
            position: relative;
            cursor: pointer;
            min-width: 0;
            overflow: hidden;
        }

        .activity-swiper .swiper-slide .item .img-box {
            width: 100%;
            height: 128px;
            border-radius: 8px;
            overflow: hidden;
            position: relative;
        }

        .activity-swiper .swiper-slide .item .img-box .status {
            position: absolute;
            left: 0;
            top: 0;
            background: #c11623;
            padding: 4px 2px;
            min-width: 42px;
            color: #ffffff;
            border-radius: 0 0 50% 0;
            font-size: 12px;
            line-height: 1.2;
        }


        .activity-swiper .swiper-slide .item .img-box img {
            display: block;
            width: 100% !important;
            height: 100% !important;
            max-width: 100% !important;
            max-height: 128px !important;
            object-fit: fill !important;
            transition: transform 0.3s ease;
        }

        .activity-swiper .swiper-slide .item:hover .img-box img {
            transform: scale(1.1);
        }

        .activity-swiper .swiper-slide .item h4 {
            font-size: 15px;
            margin: 8px 0 0;
            height: 42px;
            color: #333;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            text-overflow: ellipsis;
            line-height: 1.4;
            text-align: left;
            transition: color 0.3s ease;
        }

        .activity-swiper .swiper-slide .item:hover h4 {
            color: var(--color-primary);
        }

        .activity-swiper .swiper-slide .item .time {
            /*margin-top: 8px;*/
        }

        .activity-swiper .swiper-slide .item .time p {
            font-size: 12px;
            margin: 0;
            line-height: 1.4;
            color: #666;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .activity-swiper .swiper-slide .item .time i {
            margin-right: 4px;
            color: var(--color-primary);
        }


        /* 无活动占位提示 */
        .no-activity-placeholder {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 40px 20px;
            color: #94a3b8;
            text-align: center;
        }

        .no-activity-placeholder .icon {
            font-size: 48px;
            margin-bottom: 12px;
            opacity: 0.6;
        }

        .no-activity-placeholder p {
            margin: 4px 0 0;
            font-size: 16px;
            font-weight: 500;
        }

        .no-activity-placeholder .subtext {
            font-size: 13px;
            opacity: 0.8;
        }
    `
};