<template>
  <Modal
    v-if="showing"
    class="media-modal-view"
    @backdropClicked="hide"
  >
    <img
      v-if="type === 'image'"
      :class="{ loading }"
      class="modal-image"
      :src="currentMedia.url"
      :alt="currentMedia.description"
      :title="currentMedia.description"
      :style="{ transform }"
      @touchstart.stop.prevent="mediaTouchStart"
      @touchmove.stop.prevent="mediaTouchMove"
      @touchend.stop.prevent="mediaTouchEnd"
      @click="hide"
      @load="onImageLoaded"
    >
    <VideoAttachment
      v-if="type === 'video'"
      class="modal-image"
      :attachment="currentMedia"
      :controls="true"
    />
    <audio
      v-if="type === 'audio'"
      class="modal-image"
      :src="currentMedia.url"
      :alt="currentMedia.description"
      :title="currentMedia.description"
      controls
    />
    <Flash
      v-if="type === 'flash'"
      class="modal-image"
      :src="currentMedia.url"
      :alt="currentMedia.description"
      :title="currentMedia.description"
    />
    <button
      v-if="canNavigate"
      :title="$t('media_modal.previous')"
      class="modal-view-button-arrow modal-view-button-arrow--prev"
      @click.stop.prevent="goPrev"
    >
      <FAIcon
        class="arrow-icon"
        icon="chevron-left"
      />
    </button>
    <button
      v-if="canNavigate"
      :title="$t('media_modal.next')"
      class="modal-view-button-arrow modal-view-button-arrow--next"
      @click.stop.prevent="goNext"
    >
      <FAIcon
        class="arrow-icon"
        icon="chevron-right"
      />
    </button>
    <span
      v-if="description"
      class="description"
    >
      {{ description }}
    </span>
    <span
      class="counter"
    >
      {{ currentIndex + 1 }} / {{ media.length }}
    </span>
    <span
      v-if="loading"
      class="loading-spinner"
    >
      <FAIcon
        spin
        icon="circle-notch"
        size="5x"
      />
    </span>
  </Modal>
</template>

<script src="./media_modal.js"></script>

<style lang="scss">
.modal-view.media-modal-view {
  z-index: 1001;
  flex-direction: column;

  .modal-view-button-arrow {
    opacity: 0.75;

    &:focus,
    &:hover {
      outline: none;
      box-shadow: none;
    }

    &:hover {
      opacity: 1;
    }
  }
}

.media-modal-view {
  @keyframes media-fadein {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }

  .description,
  .counter {
    /* Hardcoded since background is also hardcoded */
    color: white;
    margin-top: 1em;
    text-shadow: 0 0 10px black, 0 0 10px black;
    padding: 0.2em 2em;
  }

  .description {
    flex: 0 0 auto;
    overflow-y: auto;
    min-height: 1em;
    max-width: 500px;
    max-height: 9.5em;
    word-break: break-all;
  }

  .modal-image {
    max-width: 90%;
    max-height: 90%;
    box-shadow: 0px 5px 15px 0 rgba(0, 0, 0, 0.5);
    image-orientation: from-image; // NOTE: only FF supports this
    animation: 0.1s cubic-bezier(0.7, 0, 1, 0.6) media-fadein;

    &.loading {
      opacity: 0.5;
    }
  }

  .loading-spinner {
    width: 100%;
    height: 100%;
    position: absolute;
    pointer-events: none;
    display: flex;
    justify-content: center;
    align-items: center;

    svg {
      color: white;
    }
  }

  .modal-view-button-arrow {
    position: absolute;
    display: block;
    top: 50%;
    margin-top: -50px;
    width: 70px;
    height: 100px;
    border: 0;
    padding: 0;
    opacity: 0;
    box-shadow: none;
    background: none;
    appearance: none;
    overflow: visible;
    cursor: pointer;
    transition: opacity 333ms cubic-bezier(.4,0,.22,1);

    .arrow-icon {
      position: absolute;
      top: 35px;
      height: 30px;
      width: 32px;
      font-size: 14px;
      line-height: 30px;
      color: #FFF;
      text-align: center;
      background-color: rgba(0,0,0,.3);
    }

    &--prev {
      left: 0;
      .arrow-icon {
        left: 6px;
      }
    }

    &--next {
      right: 0;
      .arrow-icon {
        right: 6px;
      }
    }
  }
}
</style>
