<template>
    <!-- 首页大的轮播图 -->
    <div class="swiper">
        <el-carousel :interval="5000" arrow="always" height="405px" indicator-class="custom-indicator"
            class="custom-carousel" @change="handleIndicatorChange">
            <el-carousel-item v-for="(item, index) in imagelist" :key="index">
                <NuxtLink :to="`/newsDetail/${item.id}`"
                    target="_blank">
                    <img :src="item.imgurl" alt="">
                    <span>{{ item.title }}</span>
                </NuxtLink>
            </el-carousel-item>
            <template #indicator="{ index }">
                <button :class="{ 'active-indicator': currentIndex === index }">{{ index + 1 }}</button>
            </template>
        </el-carousel>
    </div>

</template>

<script setup>
import { ElCarousel, ElCarouselItem } from 'element-plus'
import { onMounted } from 'vue'

const nuxtApp = useNuxtApp();
const axios = nuxtApp.$axios;

let imagelist = useState("imageList", () => "")
let lunbo = async () => {
    try {
        const response = await axios.get(`/web/getWebsiteArticlett?pageSize=${5}&level=${2}&placeid=${0}`);
        // console.log(response.data);
        imagelist.value = response.data;
    } catch (error) {
        console.error(error);
    }
}

onMounted(() => {
    lunbo()
})

let currentIndex = ref(0)
let handleIndicatorChange = (val) => {
    currentIndex.value = val
}

</script>

<style lang="less" scoped>
.swiper {
    width: 720px;
    height: 405px;
    position: relative;

    img {
        width: 790px;
        height: 405px;
    }

    span {
        display: inline-block;
        width: 790px;
        height: 118px;
        padding-top: 20px;
        padding-left: 23px;
        box-sizing: border-box;
        position: absolute;
        top: 0;
        left: 0;
        font-family: Source Han Sans, Source Han Sans;
        font-weight: 800;
        font-size: 24px;
        color: #FFFFFF;
        background: linear-gradient(to bottom, rgba(0, 0, 0, 1), rgba(0, 0, 0, 0));

    }
}



.el-carousel {

    // 左右箭头按钮
    .el-carousel__arrow--right :deep(.class-name),
    .el-carousel__arrow--left :deep(.class-name) {
        width: 68px;
        height: 68px;
    }

    //左右箭头图片
    /deep/.el-icon svg {
        height: 1em;
        width: 1em;
        background-color: transparent;
    }

    /deep/.el-carousel__arrow {
        border-radius: 0;
        background-color: transparent;
    }

    /deep/.el-carousel__arrow i {
        font-size: 68px !important;
    }

    /deep/ .el-carousel__indicators {
        // 指示器
        left: unset;
        transform: unset;
        right: 41%;
    }

    /deep/ .el-carousel__button {
        // 指示器按钮
        width: 20px;
        height: 20px;
        border-radius: 50%;
        border: none;
        opacity: 1;
        background-color: #FFFFFF;
    }

    /deep/ .is-active .el-carousel__button {
        // 指示器激活按钮
        background: #46D333;
    }

    /deep/ .el-carousel__container {
        height: 100%;
    }

    /deep/.custom-indicators {
        position: absolute;
        bottom: 10px;
        left: 50%;
        transform: translateX(-50%);
    }

    // 将指示器的所有样式都不显示
    // /deep/.el-carousel__indicators {
    //     display: none;
    // }

}
</style>