<script setup lang="ts">
import { useQRCode } from '@vueuse/integrations/useQRCode'
import type { DefaultTheme } from 'vitepress/theme'
import VPImage from 'vitepress/dist/client/theme-default/components/VPImage.vue'
import Button from './Button.vue'
import { type Ref, inject } from 'vue'

export interface HeroAction {
  theme?: 'brand' | 'alt'
  text: string
  link: string
}

export interface Data {
  image?: DefaultTheme.ThemeableImage
  title: string
  text: string
  tagline: string
  actions: HeroAction[]
}

defineProps<{
  data: Data
}>()

const heroImageSlotExists = inject('hero-image-slot-exists') as Ref<boolean>
const qrcode = useQRCode('https://github.com/KotatsuApp/Kotatsu/releases/latest')
</script>

<template>
  <div class="VPHomeHero" :class="{ 'has-image': data.image || heroImageSlotExists }">
    <div class="container">
      <div class="main">
        <slot name="home-hero-info">
          <h1 v-if="data.title" class="title">
            <span v-html="data.title" class="clip"></span>
          </h1>
          <p v-if="data.tagline" v-html="data.tagline" class="description"></p>
        </slot>
        <div v-if="data.actions" class="actions">
          <p v-for="action in data.actions" :key="action.link" class="action">
            <Button
              tag="a"
              :theme="action.theme"
              :text="action.text"
              :href="action.link"
            />
          </p>
        </div>
      </div>
      <div v-if="data.image || heroImageSlotExists" class="image">
        <div class="image-container">
          <div class="image-bg" />
          <slot name="image">
            <VPImage class="image-src" :image="data.image" />
          </slot>
        </div>
      </div>
    </div>
  </div>
</template>

<style scoped>
.VPHomeHero {
  margin-top: calc((var(--vp-nav-height) + var(--var-layout-top-height, 0px)) * -1);
  padding: calc(var(--vp-nav-height) + var(--vp-layout-top-height, 0px) + 48px) 24px 48px;
}

@media (min-width: 640px) {
  .VPHomeHero {
    padding: calc(var(--vp-nav-height) + var(--vp-layout-top-height, 0px) + 80px) 48px 64px;
  }
}

@media (min-width: 960px) {
  .VPHomeHero {
    padding: calc(var(--vp-nav-height) + var(--vp-layout-top-height, 0px) + 80px) 64px 64px;
  }
}

.container {
  display: flex;
  flex-direction: column;
  margin: 0 auto;
  max-width: 1152px;
}

@media (min-width: 960px) {
  .container {
    flex-direction: row;
  }
}

.main {
  position: relative;
  z-index: 10;
  order: 2;
  flex-grow: 1;
  flex-shrink: 0;
}

.VPHomeHero.has-image .container {
  text-align: center;
}

@media (min-width: 960px) {
  .VPHomeHero.has-image .container {
    text-align: left;
  }
}

@media (min-width: 960px) {
  .main {
    order: 1;
    width: calc((100% / 3) * 2);
  }

  .VPHomeHero.has-image .main {
    max-width: 592px;
  }
}

.title {
  font-size: 48px;
  letter-spacing: -0.4px;
  line-height: 50px;
  font-weight: 700;
  max-width: 392px;
  white-space: pre-wrap;
}

.VPHomeHero.has-image .title {
  margin: 0 auto;
}

@media (min-width: 640px) {
  .title {
    max-width: 576px;
    line-height: 56px;
    font-size: 48px;
  }
}

@media (min-width: 960px) {
  .title {
    line-height: 64px;
    font-size: 56px;
  }

  .VPHomeHero.has-image .title {
    margin: 1.5rem 0;
  }
}

.description {
  padding-top: 8px;
  max-width: 392px;
  line-height: 28px;
  font-size: 18px;
  font-weight: 500;
  white-space: pre-wrap;
  color: var(--vp-c-text-2);
}

.VPHomeHero.has-image .description {
  margin: 0 auto;
}

@media (min-width: 640px) {
  .description {
    padding-top: 12px;
    max-width: 576px;
    line-height: 32px;
    font-size: 20px;
  }
}

@media (min-width: 960px) {
  .description {
    line-height: 36px;
    font-size: 24px;
        max-width: 576px;
  }

  .VPHomeHero.has-image .description {
    margin: 0;
  }
}

.actions {
  display: flex;
  flex-wrap: wrap;
  padding-top: 24px;
  margin: -6px;
}

.VPHomeHero.has-image .actions {
  justify-content: center;
}

@media (min-width: 640px) {
  .actions {
    padding-top: 32px;
  }
}

@media (min-width: 960px) {
  .VPHomeHero.has-image .actions {
    justify-content: flex-start;
  }
}

.action {
  flex-shrink: 0;
  padding: 6px;
}

.image {
  order: 1;
  margin: -76px -24px -48px;
}

@media (min-width: 640px) {
  .image {
    margin: -108px -24px -48px;
  }
}

@media (min-width: 960px) {
  .image {
    flex-grow: 1;
    order: 2;
    margin: 0;
    min-height: 100%;
  }
}

.image-container {
  position: relative;
  margin: 0 auto;
  width: 320px;
  height: 320px;
}

@media (min-width: 640px) {
  .image-container {
    width: 392px;
    height: 392px;
  }
}

@media (min-width: 960px) {
  .image-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
  }
}

.image-bg {
  position: absolute;
  top: 50%;
  /*rtl:ignore*/
  left: 50%;
  border-radius: 50%;
  width: 192px;
  height: 192px;
  background-image: var(--vp-home-hero-image-background-image);
  filter: var(--vp-home-hero-image-filter);
  /*rtl:ignore*/
  transform: translate(-50%, -50%);
}

@media (min-width: 640px) {
  .image-bg {
    width: 256px;
    height: 256px;
  }
}

@media (min-width: 960px) {
  .image-bg {
    width: 320px;
    height: 320px;
  }
}

:deep(.image-src) {
  position: absolute;
  top: 50%;
  left: 50%;
  max-width: 192px;
  max-height: 192px;
  transform: translate(-50%, -50%);
}

@media (min-width: 640px) {
  :deep(.image-src) {
    max-width: 256px;
    max-height: 256px;
  }
}

@media (min-width: 960px) {
  :deep(.image-src) {
    max-width: 320px;
    max-height: 320px;
  }
}
</style>