<script setup lang="ts">
const activeFeature = ref(0);

const features = [
  { title: '设计工具', desc: '轻松设计，快速定制', image: '/设计工具.png' },
  { title: '自动化履约', desc: '从生产到配送，全程无忧，准时交付', image: '/自动化履约.png' },
  { title: '全球配送', desc: '全球20+国家本土工厂', image: '/全球配送.png' },
  { title: '店铺集成', desc: '与Shopify、Amazon等平台无缝对接', image: '/店铺集成.png' },
];

const selectFeature = (idx: number) => {
  activeFeature.value = idx;
};

let timer: ReturnType<typeof setInterval> | null = null;

const startAutoPlay = () => {
  stopAutoPlay();
  timer = setInterval(() => {
    activeFeature.value = (activeFeature.value + 1) % features.length;
  }, 3000);
};

const stopAutoPlay = () => {
  if (timer) {
    clearInterval(timer);
    timer = null;
  }
};

const pauseAutoPlay = () => {
  stopAutoPlay();
};

const resumeAutoPlay = () => {
  startAutoPlay();
};

onMounted(startAutoPlay);
onUnmounted(stopAutoPlay);
</script>

<template>
  <section class="w-full flex flex-col gap-8 lg:gap-10 items-center p-6 lg:p-10">
    <div class="text-2xl md:text-4xl lg:text-5xl text-center">用强大功能，开启盈利快车道</div>

    <div class="flex flex-col lg:flex-row gap-5 w-full max-w-7xl items-stretch">
      <div class="flex flex-row lg:flex-col justify-start lg:justify-between gap-3 lg:gap-0 overflow-x-auto lg:overflow-visible"
        @mouseenter="pauseAutoPlay"
        @mouseleave="resumeAutoPlay"
      >
        <div
          v-for="(feat, idx) in features"
          :key="idx"
          @click="selectFeature(idx)"
          @mouseenter="activeFeature = idx"
          class="flex-shrink-0 flex flex-col justify-center gap-2 lg:gap-5 pl-4 lg:pl-5 w-40 lg:w-100 h-20 lg:h-38 rounded-lg cursor-pointer transition-colors duration-300"
          :class="activeFeature === idx ? 'bg-primary text-white' : 'bg-inkreach-homepage-2'"
        >
          <p class="text-xl lg:text-4xl">{{ feat.title }}</p>
          <p class="text-sm lg:text-base indent-1">{{ feat.desc }}</p>
        </div>
      </div>

      <div class="flex-1 overflow-hidden rounded-xl relative">
        <img
          v-for="(feat, idx) in features"
          :key="'feat-img-' + idx"
          :src="feat.image"
          :alt="feat.title"
          class="w-full h-full object-contain transition-opacity duration-500 absolute inset-0"
          :class="activeFeature === idx ? 'opacity-100' : 'opacity-0 pointer-events-none'"
        />
      </div>
    </div>
  </section>
</template>
