@import '../../styles/common';

$dropzone-border-style: dashed;
$dropzone-min-height-large: 120px;
$dropzone-min-height-medium: 100px;
$dropzone-min-height-small: 50px;

$dropzone-stacking-order: (
  outline: 29,
  overlay: 30,
);

@mixin reset-after {
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 1;
  transform: scale(1);
  border: var(--p-border-width-1) $dropzone-border-style transparent;
}

@mixin set-border-radius {
  border-radius: var(--p-border-radius-large);
}

.DropZone {
  --pc-drop-zone-outline: 29;
  --pc-drop-zone-overlay: 30;
  position: relative;
  display: flex;
  justify-content: center;
  background-color: var(--p-surface);
  border-radius: var(--p-border-radius-1);

  &::after {
    content: '';
    position: absolute;
    z-index: var(--pc-drop-zone-outline);
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    border: var(--p-border-width-1) $dropzone-border-style transparent;
    border-radius: var(--p-border-radius-1);
    pointer-events: none;
  }

  &:not(.focused) {
    &::after {
      @include reset-after;
    }
  }

  &:hover {
    outline: var(--p-border-width-1) solid transparent;
  }
}

.hasOutline {
  padding: var(--p-space-025);

  &::after {
    border-color: var(--p-border-neutral-subdued);
  }

  &:not(.isDisabled) {
    &:hover {
      cursor: pointer;
      background-color: var(--p-surface-subdued);

      // stylelint-disable-next-line selector-max-specificity
      &::after {
        border-color: var(--p-interactive-hovered);
      }
    }
  }

  &:not(.focused) {
    &::after {
      @include reset-after;
      @include set-border-radius;
      border-color: var(--p-border-neutral-subdued);
    }
  }
}

.isDragging {
  &:not(.isDisabled) {
    background-color: var(--p-surface-hovered);
  }
}

.isDisabled {
  cursor: not-allowed;

  &::after {
    border-color: var(--p-border-disabled);
  }
}

.sizeLarge {
  min-height: $dropzone-min-height-large;
}

.sizeMedium {
  min-height: $dropzone-min-height-medium;
  align-items: center;
}

.sizeSmall {
  padding: 0;
  align-items: center;
  min-height: $dropzone-min-height-small;
}

.measuring {
  visibility: hidden;
  min-height: 0;
}

.Container {
  @include focus-ring($border-width: 1px);
  flex: 1;
}

.Overlay {
  @include set-border-radius;
  position: absolute;
  z-index: var(--pc-drop-zone-overlay);
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--p-space-4);
  border: var(--p-border-width-1) $dropzone-border-style var(--p-interactive);
  text-align: center;
  color: var(--p-interactive);
  background-color: var(--p-surface-selected);
  pointer-events: none;

  .hasError & {
    border-color: var(--p-border-critical);
    color: var(--p-text-critical);
    background-color: var(--p-surface-critical-subdued);
  }

  .sizeSmall & {
    padding: 0;
  }
}

.focused {
  &:not(.isDisabled) {
    .Container {
      @include focus-ring($style: 'focused');
    }
  }
}