@import '../../common/style/press/var.scss';

.press-loading-index {
  font-size: 0;
  line-height: 1;
}

.press-loading {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--loading-spinner-color, $loading-spinner-color);

  &--circular-tdesign {
    animation: press-rotate .8s linear infinite;
  }

  &__spinner {
    position: relative;
    box-sizing: border-box;
    width: var(--loading-spinner-size, $loading-spinner-size);
    // compatible for 0.x, users may set width or height in root element
    max-width: 100%;
    max-height: 100%;
    height: var(--loading-spinner-size, $loading-spinner-size);
    animation: press-rotate
      var(
        --loading-spinner-animation-duration,
        $loading-spinner-animation-duration
      )
      linear infinite;

    &--spinner {
      animation-timing-function: steps(12);
    }

    &--circular {
      border: 1px solid transparent;
      border-top-color: currentColor;
      border-radius: 100%;
    }

    &--circular-tdesign {
      border-radius: 100%;
      background: conic-gradient(
        from 180deg at 50% 50%,
        rgba(255, 255, 255, 0) 0deg,
        rgba(255, 255, 255, 0) 60deg,
        currentColor 330deg,
        rgba(255, 255, 255, 0) 360deg
      );
      animation: none;
      mask: radial-gradient(transparent calc(50% - 1rpx), #fff 50%);
    
      /* stylelint-disable-next-line */
      -webkit-mask: radial-gradient(transparent calc(50% - 1rpx), #fff 50%);
    }
  }

  &__text {
    margin-left: var(--padding-xs, $padding-xs);
    color: var(--loading-text-color, $loading-text-color);
    font-size: var(--loading-text-font-size, $loading-text-font-size);
    line-height: var(--loading-text-line-height, $loading-text-line-height);

    &:empty {
      display: none;
    }
  }

  &--vertical {
    display: flex;
    flex-direction: column;

    .press-loading__text {
      margin: var(--padding-xs, $padding-xs) 0 0;
    }
  }

  &__dot {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    &::before {
      display: block;
      width: 2px;
      height: 25%;
      margin: 0 auto;
      background-color: currentColor;
      border-radius: 40%;
      content: ' ';
    }
  }
}

@for $i from 1 through 12 {
  .press-loading__dot:nth-of-type(#{$i}) {
    transform: rotate($i * 30deg);

    // 一些项目不支持某些写法，可能是sass-loader版本问题
    opacity: calc(1 - calc((.75 / 12) * (#{$i} - 1)));
  }
}

@keyframes press-rotate {
  0% {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(1turn);
  }
}