@use 'sass:map';
@use 'sass:math';
@use '../utils/constants.scss';
@use '../utils/tokens.scss' as tokens;
@use '../utils/stateLayerVars.scss' as stateLayerVars;

@import '@viasat/beam-tokens/components/FileUpload';

$fileUploadBaseClass: '#{constants.$prefix}file-upload';
$fileUploadListBaseClass: '#{constants.$prefix}file-upload-list';
$fileUploadListItemBaseClass: '#{constants.$prefix}file-upload-list-item';
$fileUploadDropzoneBaseClass: '#{constants.$prefix}file-upload-dropzone';
$fileUploadButtonBaseClass: '#{constants.$prefix}file-upload-button';

.#{$fileUploadBaseClass} {
  display: flex;
  flex-direction: column;
  gap: tokens.$bm-sem-space-100;
  max-width: tokens.$bm-comp-input-size-field-width;
  width: 100%;

  &--fluid {
    max-width: none;
  }

  &__uploader {
    display: flex;
    gap: 0;
    flex-direction: column;
  }
}

.#{$fileUploadListBaseClass} {
  display: flex;
  flex-direction: column;
  gap: tokens.$bm-sem-space-50;
}

.#{$fileUploadListItemBaseClass} {
  $root: &;

  box-sizing: border-box;
  display: flex;
  border-radius: tokens.$bm-comp-file-upload-radius-file;
  min-height: tokens.$bm-comp-file-upload-size-file-md-height;
  padding: tokens.$bm-comp-file-upload-space-file-md-y
    tokens.$bm-comp-file-upload-space-file-x;
  gap: tokens.$bm-comp-file-upload-space-file-gap;
  align-items: center;
  background: tokens.$bm-comp-file-upload-color-file-bg;
  position: relative;
  overflow: hidden;

  &--uploading,
  &--uploaded,
  &--success {
    display: flex;
  }

  &--error {
    align-items: flex-start;
    outline: tokens.$bm-sem-border-width-lg solid
      tokens.$bm-sem-color-border-negative-strong;
  }

  &--lg {
    min-height: tokens.$bm-comp-file-upload-size-file-lg-height;
    padding: tokens.$bm-comp-file-upload-space-file-lg-y
      tokens.$bm-comp-file-upload-space-file-x;
  }

  &__thumbnail {
    display: flex;

    width: tokens.$bm-comp-file-upload-size-file-md-thumbnail;
    height: tokens.$bm-comp-file-upload-size-file-md-thumbnail;

    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    border-radius: tokens.$bm-comp-file-upload-radius-thumbnail;
    background-color: tokens.$bm-sem-color-surface-highlight;
    overflow: hidden;

    #{$root}--lg & {
      width: tokens.$bm-comp-file-upload-size-file-lg-thumbnail;
      height: tokens.$bm-comp-file-upload-size-file-lg-thumbnail;
    }

    img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }
  }

  &__content {
    display: flex;
    flex: 1 0 0;
    flex-direction: row;
    gap: tokens.$bm-comp-file-upload-space-file-gap-inner;
    min-width: 0;

    #{$root}--lg &,
    #{$root}--error & {
      align-items: flex-start;
    }
  }

  &__content-start {
    display: flex;
    align-items: center;
    gap: tokens.$bm-comp-file-upload-space-file-gap-inner;
    flex: 1 0 0;
    flex-direction: row;
    min-width: 0;

    #{$root}--lg &,
    #{$root}--error & {
      gap: 0;
      flex-direction: column;
      align-items: flex-start;
      flex: 1;
    }
  }

  &__content-end {
    display: flex;
    gap: tokens.$bm-comp-file-upload-space-file-gap-inner;
    align-items: center;
  }

  &__filename {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;

    color: tokens.$bm-comp-file-upload-color-file-name;
    font: tokens.$bm-comp-file-upload-typo-file;

    margin: 0;
    padding: 0;

    max-width: 100%;
  }

  &__size {
    flex-shrink: 0;

    color: tokens.$bm-comp-file-upload-color-file-detail;
    font: tokens.$bm-comp-file-upload-typo-file;

    margin: 0;
    padding: 0;

    #{$root}--error & {
      display: none;
    }
  }

  &__status {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;

    & bm-icon {
      display: flex;
    }
  }

  &__remove {
    display: flex;
  }

  &__progress-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
  }

  &__error {
    --bm-comp-helper-text-space-top: 0;
  }
}

.#{$fileUploadDropzoneBaseClass} {
  $root: &;

  position: relative;
  display: flex;
  padding: tokens.$bm-comp-file-upload-space-dropzone-md-y
    tokens.$bm-comp-file-upload-space-dropzone-x;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: tokens.$bm-comp-file-upload-space-dropzone-gap;
  flex-shrink: 0;

  border-radius: tokens.$bm-comp-file-upload-radius-dropzone;
  background: tokens.$bm-comp-file-upload-color-dropzone-bg;

  &:focus-visible {
    outline: none;
  }

  &--dragging:not(&--disabled) {
    background: tokens.$bm-comp-file-upload-color-dropzone-bg-drag;
  }

  &--disabled {
    opacity: tokens.$bm-sem-opacity-disabled;
  }

  &:not(&--disabled) {
    cursor: pointer;
  }

  &__state-layer.#{stateLayerVars.$stateLayerBaseClass} {
    #{stateLayerVars.$opacity}: 1;
    #{stateLayerVars.$outline-style}: dashed;
    #{stateLayerVars.$outline-offset}: calc(
      -1 * #{tokens.$bm-comp-file-upload-border-width-dropzone-default}
    );
    #{stateLayerVars.$outline-color}: #{tokens.$bm-comp-file-upload-color-dropzone-border};
    #{stateLayerVars.$outline-width}: #{tokens.$bm-comp-file-upload-border-width-dropzone-default};

    *:focus-within > & {
      #{stateLayerVars.$outline-offset}: 0;
      #{stateLayerVars.$outline-style}: solid;
      #{stateLayerVars.$outline-color}: #{tokens.$bm-sem-color-border-focus};
      #{stateLayerVars.$outline-width}: #{tokens.$bm-sem-border-width-focus};
    }

    #{$root}--dragging:not(#{$root}--disabled) > & {
      #{stateLayerVars.$outline-color}: #{tokens.$bm-comp-file-upload-color-dropzone-border-drag};
      #{stateLayerVars.$outline-width}: #{tokens.$bm-comp-file-upload-border-width-dropzone-drag};
      #{stateLayerVars.$outline-style}: solid;
      #{stateLayerVars.$background}: transparent;
    }

    #{$root}--disabled > &,
    *:disabled > & {
      #{stateLayerVars.$background}: transparent;
      #{stateLayerVars.$opacity}: 1;
    }

    #{$root}--error > & {
      #{stateLayerVars.$outline-color}: #{tokens.$bm-comp-input-color-border-error};
      #{stateLayerVars.$outline-width}: #{tokens.$bm-comp-input-border-width-field-error};
      #{stateLayerVars.$outline-offset}: calc(
        -1 * #{tokens.$bm-comp-input-border-width-field-error}
      );
      #{stateLayerVars.$outline-style}: dashed;
    }
  }

  &__icon {
    color: tokens.$bm-comp-file-upload-color-dropzone-icon;
    z-index: 1;

    #{$root}--dragging:not(#{$root}--disabled) & {
      color: tokens.$bm-comp-file-upload-color-dropzone-icon-drag;
    }
  }

  &__text {
    color: tokens.$bm-comp-file-upload-color-dropzone-text;
    text-align: center;
    font: tokens.$bm-comp-file-upload-typo-dropzone;
    z-index: 1;
  }

  &__link {
    color: tokens.$bm-sem-color-link-primary;

    #{$root}:is(:hover, #{$root}--dragging):not(:disabled, #{$root}--disabled) & {
      text-decoration: underline;
    }
  }
}