@import '../../styles/variables.less';
@import '../../styles/themes/@{so-theme}.less';

@button-prefix: ~'@{so-prefix}-button';
@button-disabled: ~'.@{button-prefix}-disabled';
@icon-prefix:  ~'@{so-prefix}-icon';

.@{button-prefix} {
  &-rtl {
    direction: rtl;
    text-align: right;
  }
  display: inline-block;
  margin-bottom: 0; // For input.btn
  border: 1px solid transparent;
  background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
  cursor: pointer;
  font-weight: @btn-font-weight;
  outline: none;
  text-align: center;
  touch-action: manipulation;
  vertical-align: middle;
  white-space: nowrap;
  .button-size(@btn-padding-y; @btn-padding-x; @button-font-size-base; @line-height-base; @btn-border-radius-base);
  .user-select(none);

  &-spin {
    display: inline-block;
    &-ltr {
      margin-right: @button-spin-margin;
    }
    &-rtl {
      margin-left: @button-spin-margin;
    }
  }

  &:hover,
  &:focus {
    z-index: 10;
    color: @link-hover-color;
    outline: none;
    text-decoration: none;
  }

  &::-moz-focus-inner {
    border: 0;
  }

  &.active {
    background-image: none;
    outline: 0;
    // .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
  }

  & + & {
    &:not(.@{button-prefix}-rtl) {
      margin-left: @button-margin-left;
    }
    &-rtl {
      margin-right: @button-margin-left;
    }
  }

  &[disabled],
  fieldset[disabled] & {
    position: relative;
    box-shadow: none;
    cursor: @cursor-disabled;
    opacity: @button-disabled-opacity;
  }

  // cover disabled opacity
  &.@{button-prefix}-disabled {
    opacity: 1;
    // cover default opacity in link disabled button
    &.@{button-prefix}-link {
      opacity: 0.4;
    }
    &.@{button-prefix}-text {
      opacity: .65;
    }
  }

  a& {
    fieldset[disabled] & {
      pointer-events: none; // Future-proof disabling of clicks on `<a>` elements
    }
  }

  &-default {
    .button-variant(@button-default-text-color; @btn-default-bg; @btn-default-border; 'default' ; @btn-default-border);

    &.@{button-prefix}-outline:not(@{button-disabled}) {
      .button-outline(@button-default-text-color; @btn-default-bg; @btn-default-bg;);
    }

    &:not(.@{button-prefix}-disabled):hover,
    &:not(.@{button-prefix}-disabled):focus,
    &:not(.@{button-prefix}-disabled):active {
      color: @colors-primary;
      .@{icon-prefix} {
        color: @colors-primary;
        fill: @colors-primary;
      }
    }

    & when (@so-theme = antd) {
      &:hover,
      &:focus {
        border-color: @link-color;
        color: @link-color;
        fill: @link-color;
      }
    }

    &[disabled]:hover {
      color: @button-default-text-color;
      fill: @link-color;
    }
  }

  &-primary {
    .button-variant(@btn-primary-color; @btn-primary-bg; @btn-primary-border; 'primary');

    &.@{button-prefix}-outline:not(@{button-disabled}) {
      .button-outline(@btn-primary-color; @btn-primary-bg; @colors-primary;);
    }
  }

  &-secondary {
    .button-variant(@btn-secondary-color; @btn-secondary-bg; @btn-secondary-border; 'secondary');

    &.@{button-prefix}-outline:not(@{button-disabled}) {
      .button-outline(@btn-secondary-color; @btn-secondary-bg; @colors-secondary;);
    }
  }

  &-success {
    .button-variant(@btn-success-color; @btn-success-bg; @btn-success-border; 'success');

    &.@{button-prefix}-outline:not(@{button-disabled}) {
      .button-outline(@btn-success-color; @btn-success-bg; @colors-success;);
    }
  }

  &-info {
    .button-variant(@btn-info-color; @btn-info-bg; @btn-info-border; 'info');

    &.@{button-prefix}-outline:not(@{button-disabled}) {
      .button-outline(@btn-info-color; @btn-info-bg; @colors-info;);
    }
  }

  &-warning {
    .button-variant(@btn-warning-color; @btn-warning-bg; @btn-warning-border; 'warning');

    &.@{button-prefix}-outline:not(@{button-disabled}) {
      .button-outline(@btn-warning-color; @btn-warning-bg; @colors-warning;);
    }
  }

  &-error,
  &-danger {
    .button-variant(@btn-danger-color; @btn-danger-bg; @btn-danger-border; 'danger');

    &.@{button-prefix}-outline:not(@{button-disabled}) {
      .button-outline(@btn-danger-color; @btn-danger-bg; @colors-danger;);
    }
  }

  &-text {
    background: transparent;
    border: none;
    box-shadow: none;
    padding-left: 4px;
    padding-right: 4px;
    display: inline-flex;
    align-items: center;

    &:not(:disabled):hover {
      opacity: .8;
    }

    &,
    &:hover,
    &:focus,
    &:active {
      background: transparent;
      border: none;
      box-shadow: none;
      animation: none;
    }

    &:disabled:hover {
      background: transparent;
    }

    &.@{button-prefix}-primary {
      color: @btn-primary-bg;
    }

    &.@{button-prefix}-success {
      color: @btn-success-bg;
    }

    &.@{button-prefix}-info {
      color: @btn-info-bg;
    }

    &.@{button-prefix}-danger {
      color: @btn-danger-bg;
    }

    &.@{button-prefix}-warning {
      color: @btn-warning-bg;
    }

    &.@{button-prefix}-secondary {
      color: @btn-secondary-bg;
    }
  }

  &-link {
    border-radius: 0;
    color: @link-color;
    font-weight: normal;

    &,
    &:active,
    &[disabled],
    fieldset[disabled] & {
      background-color: transparent;
      .box-shadow(none);
    }

    &,
    &:hover,
    &:focus,
    &:active {
      border-color: transparent;
    }

    &:hover,
    &:focus {
      background-color: transparent;
      color: @link-hover-color;
      text-decoration: @link-hover-decoration;
    }

    &[disabled],
    fieldset[disabled] & {
      &:hover,
      &:focus {
        color: @link-color;
        text-decoration: none;
      }
    }
  }

  &-large {
    .button-size(
      @btn-padding-large-y; @btn-padding-large-x; @button-font-size-large; @line-height-base; @btn-border-radius-large
    );
  }

  &-small {
    .button-size(
      @btn-padding-small-y; @btn-padding-small-x; @button-font-size-small; @line-height-small; @btn-border-radius-small
    );
  }

  &-disabled:not(&-link):not(&-text), &-disabled:not(&-link):not(&-text):hover {
    background: @button-disabled-bg;
    color: @button-disabled-color;
    fill: @button-disabled-color;
    border-color: @button-disabled-border-color;
  }

  &-circle {
    border-radius: 50%;
    min-width: @btn-circle-width;
    padding-left: 0;
    padding-right: 0;
    &.@{button-prefix}-large {
      min-width: @btn-circle-large-width;
    }
    &.@{button-prefix}-small {
      min-width: @btn-circle-small-width;
    }
  }

  &-round {
    border-radius: 1000px;
  }

  &-group {
    .@{button-prefix} {
      position: relative;
      border-right-width: 0;
      border-left-width: 0;
      &:not(&-rtl) {
        margin-left: 0px;
      }
      &-rtl {
        margin-right: 0px;
      }

      &:before {
        position: absolute;
        top: 50%;
        left: 0;
        height: 50%;
        border-left-width: 1px;
        border-left-style: solid;
        border-left-color: rgba(255, 255, 255, 0.4);
        content: ' ';
        transform: translateY(-50%);
        .@{button-prefix}-group-rtl&{
          left: auto;
          right: 0;
        }
      }


      &:first-child {
        &:not(.@{button-prefix}-rtl) {
          margin-left: 0;
          border-left-width: 1px;
        }
        &.@{button-prefix}-rtl {
          border-right-width: 1px;
          margin-right: 0;
        }


        &:before {
          display: none;
        }
      }

      &:last-child {
        &:not(.@{button-prefix}-rtl) {
          border-right-width: 1px;
        }
        &.@{button-prefix}-rtl {
          border-left-width: 1px;
        }
      }

      &:not(:first-child):not(:last-child) {
        border-radius: 0;
      }

      &:first-child:not(:last-child) {
        &:not(.@{button-prefix}-rtl) {
          .border-right-radius(0);
        }
        &.@{button-prefix}-rtl {
          .border-left-radius(0);
        }
      }

      &:last-child:not(:first-child) {
        &:not(.@{button-prefix}-rtl) {
          .border-left-radius(0);
        }
        &.@{button-prefix}-rtl {
          .border-right-radius(0)
        }
      }


      .button-group-border()
    }
  }

  &-from-input-group {
    .@{button-prefix} {
      &:before {
        border-left: none;
      }
    }
  }

  .@{so-prefix}-dropdown {
    border-top-width: 1px;
    border-bottom-width: 1px;
  }
}