<template>
  <img
    v-if="src"
    ref="img"
    :class="`avatar size-${size} ${circle ? 'circle' : ''}`"
    :src="src"
    :alt="alt"
    :loading="loading"
  />
  <svg
    v-else
    :class="`avatar size-${size} ${circle ? 'circle' : ''}`"
    xml:space="preserve"
    fill-rule="evenodd"
    stroke-linecap="round"
    stroke-linejoin="round"
    stroke-miterlimit="1.5"
    clip-rule="evenodd"
    viewBox="0 0 104 104"
    aria-hidden="true"
  >
    <path fill="none" d="M0 0h103.4v103.4H0z" />
    <path
      fill="none"
      stroke="#9a9a9a"
      stroke-width="5"
      d="M51.7 92.5V51.7L16.4 31.3l35.3 20.4L87 31.3 51.7 11 16.4 31.3v40.8l35.3 20.4L87 72V31.3L51.7 11"
    />
  </svg>
</template>

<script>
export default {
  name: 'Avatar',
  props: {
    src: {
      type: String,
      default: null,
    },
    alt: {
      type: String,
      default: '',
    },
    size: {
      type: String,
      default: 'sm',
      validator(value) {
        return ['xs', 'sm', 'md', 'lg'].includes(value)
      },
    },
    circle: {
      type: Boolean,
      default: false,
    },
    loading: {
      type: String,
      default: 'eager',
    },
  },
  mounted() {
    if (this.$refs.img && this.$refs.img.naturalWidth) {
      const isPixelated = () => {
        if (
          this.$refs.img.naturalWidth < 96 &&
          this.$refs.img.naturalWidth > 0
        ) {
          this.$refs.img.style.imageRendering = 'pixelated'
        }
      }

      if (this.$refs.img.naturalWidth) {
        isPixelated()
      } else {
        this.$refs.img.onload = isPixelated
      }
    }
  },
}
</script>

<style lang="scss" scoped>
.avatar {
  border-radius: var(--size-rounded-icon);
  box-shadow: var(--shadow-inset-lg), var(--shadow-card);
  height: var(--size);
  width: var(--size);
  background-color: var(--color-button-bg);
  object-fit: contain;

  &.size-xs {
    --size: 2.5rem;
    box-shadow: var(--shadow-inset), var(--shadow-card);
    border-radius: var(--size-rounded-sm);
  }

  &.size-sm {
    --size: 3rem;
    box-shadow: var(--shadow-inset), var(--shadow-card);
    border-radius: var(--size-rounded-sm);
  }

  &.size-md {
    --size: 6rem;
    border-radius: var(--size-rounded-lg);
  }

  &.size-lg {
    --size: 9rem;
    border-radius: var(--size-rounded-lg);
  }

  &.circle {
    border-radius: 50%;
  }
}
</style>
