// Datepicker
//
// Styles the `data-vc-*` markup that Vanilla Calendar Pro renders, the same way
// Bootstrap 6 does: the calendar grid is one set of tokens (`--calendar-*`),
// the popup surface the datepicker adds around it is another (`--datepicker-*`).
// An inline calendar renders unadorned and takes the surface of its container.

@use '../config' as *;

// stylelint-disable selector-max-attribute, selector-no-qualifying-type -- the plugin marks everything with data attributes

//
// Calendar grid
//

[data-vc='calendar'] {
  --calendar-padding: #{$datepicker-calendar-padding};
  --calendar-color: var(--body-color);
  --calendar-font-size: #{$datepicker-calendar-font-size};
  --calendar-header-font-weight: #{$datepicker-calendar-header-font-weight};
  --calendar-weekday-color: var(--secondary);
  --calendar-week-number-color: var(--secondary);
  --calendar-week-number-border-color: var(--border-color);
  --calendar-day-hover-bg: var(--hover-bg);
  --calendar-day-selected-bg: var(--primary);
  --calendar-day-selected-color: var(--primary-fg);
  --calendar-day-today-bg: #{color-transparent(var(--body-color), 6%)};
  --calendar-day-today-color: var(--primary);
  --calendar-day-disabled-color: var(--disabled-color);
  --calendar-day-size: #{$datepicker-calendar-day-size};
  --calendar-day-font-size: #{$datepicker-calendar-day-font-size};
  --calendar-border-radius: var(--border-radius);
  position: relative;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  width: fit-content;
  padding: var(--calendar-padding);
  font-family: inherit;
  font-size: var(--calendar-font-size);
  color: var(--calendar-color);

  button {
    font-family: inherit;
    @include focus-ring-transition();
  }

  button:focus-visible {
    position: relative;
    z-index: 1;
    @include focus-ring(true);
  }
}

// Month navigation
[data-vc-arrow] {
  position: relative;
  display: block;
  width: 2rem;
  height: 2rem;
  color: var(--calendar-color);
  pointer-events: auto;
  cursor: pointer;
  background-color: transparent;
  border: 0;
  @include border-radius(var(--calendar-border-radius));

  &::before {
    position: absolute;
    inset: 0.25rem;
    content: '';
    background-color: currentColor;
    @include mask-icon(url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M12 16c-.3 0-.5-.1-.7-.3l-6-6c-.4-.4-.4-1 0-1.4s1-.4 1.4 0l5.3 5.3 5.3-5.3c.4-.4 1-.4 1.4 0s.4 1 0 1.4l-6 6c-.2.2-.4.3-.7.3'/></svg>"), $size: 1rem);
  }

  &:hover {
    background-color: var(--calendar-day-hover-bg);
  }
}

[data-vc-arrow='prev']::before {
  transform: rotate(90deg);
}

[data-vc-arrow='next']::before {
  transform: rotate(-90deg);
}

// The controls overlay the header, so they repeat the calendar's own inset to
// keep the arrows aligned with the content below.
[data-vc='controls'] {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block-start: var(--calendar-padding);
  padding-inline: var(--calendar-padding);
  pointer-events: none;
}

[data-vc='grid'] {
  display: flex;
  flex-grow: 1;
  flex-wrap: wrap;
  gap: 1.75rem;
}

[data-vc='column'] {
  display: flex;
  flex-grow: 1;
  flex-direction: column;
  min-width: 240px;
}

// Header: month and year
[data-vc='header'] {
  position: relative;
  display: flex;
  align-items: center;
  margin-bottom: 0.75rem;
}

[data-vc-header='content'] {
  display: inline-flex;
  flex-grow: 1;
  align-items: center;
  justify-content: center;
  white-space: pre-wrap;
}

[data-vc='month'],
[data-vc='year'] {
  padding: 0.25rem 0.5rem;
  margin-inline: -0.125rem;
  font-size: var(--font-size-base, 1rem);
  font-weight: var(--calendar-header-font-weight);
  color: var(--calendar-color);
  background-color: transparent;
  border: 0;
  @include border-radius(var(--calendar-border-radius));

  &:disabled {
    color: var(--calendar-day-disabled-color);
    pointer-events: none;
  }

  &:hover:not(:disabled) {
    background-color: var(--calendar-day-hover-bg);
  }
}

// Holds the week numbers column, when enabled, next to the month
[data-vc='wrapper'] {
  display: flex;
  flex-grow: 1;
}

[data-vc='content'] {
  display: flex;
  flex-grow: 1;
  flex-direction: column;
}

// Month and year views. The plugin wraps each set in role="row" and
// role="gridcell" elements, so the column grid goes on the row.
[data-vc='months'],
[data-vc='years'] {
  display: flex;
  flex-grow: 1;
  flex-direction: column;
  row-gap: 1rem;
}

[data-vc-months='row'],
[data-vc-years='row'] {
  display: grid;
  grid-template-columns: repeat(var(--calendar-columns, 4), minmax(0, 1fr));
  column-gap: 0.25rem;
  align-items: center;
}

[data-vc='years'] {
  --calendar-columns: 5;
}

[data-vc-months='cell'],
[data-vc-years='cell'] {
  display: flex;
}

[data-vc-months-month],
[data-vc-years-year] {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 2.5rem;
  padding: 0.25rem;
  font-size: var(--calendar-day-font-size);
  font-weight: var(--calendar-header-font-weight);
  line-height: 1rem;
  color: var(--calendar-weekday-color);
  text-align: center;
  word-break: break-all;
  cursor: pointer;
  background-color: transparent;
  border: 0;
  @include border-radius(var(--calendar-border-radius));

  &:disabled {
    color: var(--calendar-day-disabled-color);
    pointer-events: none;
  }

  &:hover:not(:disabled) {
    background-color: var(--calendar-day-hover-bg);
  }

  &[data-vc-months-month-selected],
  &[data-vc-years-year-selected] {
    color: var(--calendar-day-selected-color);
    background-color: var(--calendar-day-selected-bg);

    &:hover {
      color: var(--calendar-day-selected-color);
      background-color: var(--calendar-day-selected-bg);
    }
  }
}

// Weekday header
[data-vc='week'] {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  justify-items: center;
  margin-bottom: 0.5rem;
}

[data-vc-week-day] {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-width: var(--calendar-day-size);
  padding: 0;
  margin: 0;
  font-size: var(--calendar-day-font-size);
  font-weight: var(--calendar-header-font-weight);
  line-height: 1rem;
  color: var(--calendar-weekday-color);
  background-color: transparent;
  border: 0;
}

button[data-vc-week-day] {
  cursor: pointer;
}

// Week numbers: a column in front of the month, with a title that lines up
// with the weekday header and one number for each row of dates.
[data-vc-week='numbers'] {
  display: flex;
  flex-direction: column;
  padding-inline-end: 0.5rem;
  margin-inline-end: 0.5rem;
  border-inline-end: var(--border-width) solid var(--calendar-week-number-border-color);
}

[data-vc-week-numbers='title'] {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
  font-size: var(--calendar-day-font-size);
  font-weight: var(--calendar-header-font-weight);
  line-height: 1rem;
  color: var(--calendar-week-number-color);
}

[data-vc-week-numbers='content'] {
  display: grid;
  grid-auto-rows: calc(var(--calendar-day-size) + 0.25rem);
  align-items: center;
  justify-items: center;
}

[data-vc-week-number] {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-width: var(--calendar-day-size);
  font-size: var(--calendar-day-font-size);
  font-weight: $font-weight-normal;
  line-height: 1rem;
  color: var(--calendar-week-number-color);
}

// Dates grid
[data-vc='dates'] {
  pointer-events: none;
}

[data-vc-dates='row'] {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  align-items: center;
  justify-items: center;
  width: 100%;
}

[data-vc-date] {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding-top: 0.125rem;
  padding-bottom: 0.125rem;
  pointer-events: auto;

  &:not(:has([data-vc-date-btn])),
  &[data-vc-date-disabled],
  &[data-vc-date-disabled] [data-vc-date-btn] {
    pointer-events: none;
  }
}

// A day paints its background from two variables: the colour a state picks
// and the opacity it gets. States change the variables, never `opacity`, so
// the date stays readable on a faded background.
[data-vc-date-btn] {
  --calendar-day-bg: transparent;
  --calendar-day-bg-opacity: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-width: var(--calendar-day-size);
  height: 100%;
  min-height: var(--calendar-day-size);
  padding: 0;
  font-size: var(--calendar-day-font-size);
  font-weight: $font-weight-normal;
  line-height: 1rem;
  color: var(--calendar-color);
  cursor: pointer;
  background-color: color-transparent(var(--calendar-day-bg), var(--calendar-day-bg-opacity));
  border: 0;
  border-radius: var(--calendar-border-radius);
  @include focus-ring-transition(color $transition-time, background-color $transition-time);

  &:hover {
    --calendar-day-bg: var(--calendar-day-hover-bg);
  }
}

// Today
[data-vc-date-today] [data-vc-date-btn] {
  font-weight: $font-weight-bold;
  --calendar-day-bg: var(--calendar-day-today-bg);
  color: var(--calendar-day-today-color);
}

// Days of the previous and next month
[data-vc-date-month='next'] [data-vc-date-btn],
[data-vc-date-month='prev'] [data-vc-date-btn] {
  --calendar-day-bg-opacity: 50%;
  color: var(--calendar-weekday-color);
}

[data-vc-date-disabled] [data-vc-date-btn] {
  color: var(--calendar-day-disabled-color);
}

// Range selection: the hovered and selected runs join into one bar, so only the
// outer corners keep their radius. Logical corners follow the writing direction.
[data-vc-date-hover] [data-vc-date-btn] {
  --calendar-day-bg: var(--calendar-day-hover-bg);
  border-radius: 0;
}

[data-vc-date-hover='first'] [data-vc-date-btn] {
  border-start-start-radius: var(--calendar-border-radius);
  border-end-start-radius: var(--calendar-border-radius);
}

[data-vc-date-hover='last'] [data-vc-date-btn] {
  border-start-end-radius: var(--calendar-border-radius);
  border-end-end-radius: var(--calendar-border-radius);
}

[data-vc-date-hover='first-and-last'] [data-vc-date-btn] {
  border-radius: var(--calendar-border-radius);
}

[data-vc-date-selected] [data-vc-date-btn] {
  --calendar-day-bg: var(--calendar-day-selected-bg);
  color: var(--calendar-day-selected-color);
}

// Inside a range only the two ends are solid; the days between keep their own
// text colour on a faint tint of the selected colour.
[data-vc-date-selected='middle'] [data-vc-date-btn] {
  --calendar-day-bg-opacity: #{$datepicker-calendar-range-bg-opacity};
  color: var(--calendar-color);
  border-radius: 0;
}

[data-vc-date-selected='first'] [data-vc-date-btn] {
  border-start-start-radius: var(--calendar-border-radius);
  border-start-end-radius: 0;
  border-end-start-radius: var(--calendar-border-radius);
  border-end-end-radius: 0;
}

[data-vc-date-selected='last'] [data-vc-date-btn] {
  border-start-start-radius: 0;
  border-start-end-radius: var(--calendar-border-radius);
  border-end-start-radius: 0;
  border-end-end-radius: var(--calendar-border-radius);
}

[data-vc-date-selected='first-and-last'] [data-vc-date-btn] {
  border-radius: var(--calendar-border-radius);
}

//
// Popup surface
//
// The plugin adds `[data-vc-input]` only when it owns a popup, so inline
// calendars keep the bare grid styling above.

[data-vc='calendar'][data-vc-input] {
  --datepicker-padding: #{$datepicker-padding};
  --datepicker-bg: #{$datepicker-bg};
  --datepicker-border-radius: #{$datepicker-border-radius};
  --datepicker-box-shadow: #{$datepicker-box-shadow};
  --datepicker-min-width: #{$datepicker-min-width};
  --datepicker-zindex: #{$zindex-dropdown};
  --calendar-padding: var(--datepicker-padding);
  position: absolute;
  z-index: var(--datepicker-zindex);
  min-width: var(--datepicker-min-width);
  // Same surface as `.dropdown-menu`: the edge is the 1px ring inside the
  // dropdown shadow, so the popup has no border of its own.
  background-color: var(--datepicker-bg);
  box-shadow: var(--datepicker-box-shadow);
  @include border-radius(var(--datepicker-border-radius));

  // The plugin creates the popup at 0/0 with this attribute, positions it on
  // show, and puts the attribute back on hide. The selector repeats the popup
  // one so it wins on specificity; otherwise the popup flashes in the corner
  // and never disappears.
  &[data-vc-calendar-hidden] {
    pointer-events: none;
    opacity: 0;
  }
}

[data-vc-position='bottom'] {
  margin-block-start: 0.25rem;
}

[data-vc-position='top'] {
  margin-block-end: -0.25rem;
}

// stylelint-enable selector-max-attribute, selector-no-qualifying-type