@import "./datetime.scss";
@import "./datetime.ios.vars.scss";
@import "../../themes/ionic.globals.ios";

:host {
  --background: #{ion-color(light, base)};
  --background-rgb: #{ion-color(light, base, null, true)};
  --title-color: #{$text-color-step-400};
}

:host(.datetime-presentation-date-time:not(.datetime-prefer-wheel)),
:host(.datetime-presentation-time-date:not(.datetime-prefer-wheel)),
:host(.datetime-presentation-date:not(.datetime-prefer-wheel)) {
  min-height: 350px;
}

// Header
// -----------------------------------
:host .datetime-header {
  @include padding($datetime-ios-padding, $datetime-ios-padding, $datetime-ios-padding, $datetime-ios-padding);

  border-bottom: $datetime-ios-border-color;

  font-size: dynamic-font-max(14px, 1.6);
}

:host .datetime-header .datetime-title {
  color: var(--title-color);
}

:host .datetime-header .datetime-selected-date {
  @include margin(10px, null, null, null);
}

// Calendar / Header / Action Buttons
// -----------------------------------
.calendar-month-year-toggle {
  @include padding(0px, 16px, 0px, #{$datetime-ios-padding});

  min-height: 44px;

  font-size: dynamic-font-max(16px, 1.6);
  font-weight: 600;

  &.ion-focused::after {
    opacity: 0.15;
  }
}

.calendar-month-year-toggle #toggle-wrapper {
  @include margin(10px, 8px, 10px, 0);
}

:host .calendar-action-buttons .calendar-month-year-toggle ion-icon,
:host .calendar-action-buttons ion-buttons ion-button {
  color: current-color(base);
}

:host .calendar-action-buttons ion-buttons {
  align-items: stretch;

  height: 100%;
}

:host .calendar-action-buttons ion-buttons ion-button {
  @include margin(0, 0, 0, 0);
}

// Calendar / Header / Days of Week
// -----------------------------------
:host .calendar-days-of-week {
  @include padding(0, $datetime-ios-padding * 0.5, 0, $datetime-ios-padding * 0.5);

  color: $text-color-step-700;

  font-size: dynamic-font-max(12px, 1.6);

  font-weight: 600;

  line-height: 24px;

  text-transform: uppercase;
}

@supports (border-radius: mod(1px, 1px)) {
  .calendar-days-of-week .day-of-week {
    /**
     * When the computed font size is 24px
     * we want the days of the week to only
     * show the first letter of each day.
     *
     * We use the modulus operator to ensure
     * that any font size less than 24px is
     * unchanged (i.e. 16 % 24 = 16). If the
     * font size is 24px then the remainder
     * will be 0.
     */
    $max-font-size: min(1rem, $datetime-dynamic-font-breakpoint);
    $remainder: mod($max-font-size, $datetime-dynamic-font-breakpoint);

    /**
     * From here, we scale the remainder to get
     * a width value larger than 20px.
     * We then clamp the width to have a max width
     * of 100% so that each element does not appear
     * too wide if $width is a very large number.
     *
     * When the font size is >=24px then $remainder
     * will be 0px. This results in $width being 0px
     * since 0px * 10 is still 0px. We set a minimum
     * width of 20px below so that the days of the
     * week still show when the font size is >=24px
     * and have a fixed width of 20px.
     *
     * The days of the week text on iOS have a maximum font size
     * that is no larger than 20px, so setting a minimum width
     * of 20px ensures that the text will always fit. (See font-size
     * declaration in the .calendar-days-of-week block).
     */
    $width: calc($remainder * 10);
    width: clamp(20px, #{$width}, 100%);

    /**
     * We show the first letter of the week
     * by setting the width small such that all other
     * letters wrap to the next line. While we do have
     * overflow: hidden to visually hide the overflowing
     * text, we need to explicitly set the height of the
     * container too otherwise it will increase as the text wraps.
     */
    height: $datetime-dynamic-font-breakpoint;

    /**
     * The above width will cause
     * all the other letters to overflow
     * to other lines. The below code hides
     * those additional letters so only
     * the first letter is shown.
     */
    overflow: hidden;
  }

  .calendar-day {
    /**
     * We use the modulus operator to ensure
     * that any font size less than 24px is
     * unchanged (i.e. 16 % 24 = 16). If the
     * font size is 24px then the remainder
     * will be 0.
     */
    $maxFontSize: min(1rem, $datetime-dynamic-font-breakpoint);
    $remainder: mod($maxFontSize, $datetime-dynamic-font-breakpoint);

    /**
     * From here, we scale the remainder. The purpose of
     * scaling the remainder is to get a border radius
     * large enough such that the element's
     * shape is a circle.
     *
     * Note that when the font size is 24px
     * then the remainder will be 0, so $radius
     * will still be zero.
     */
    $radius: calc($remainder * 10);

    /**
     * In the event that $radius is 0
     * we use max() to ensure a minimum
     * border radius of 8px which will
     * give the day button the rounded
     * rectangle appearance.
     * For font sizes smaller than 24px
     * the border radius will give a circle appearance.
     */
    @include border-radius(max(8px, $radius));
  }
}

/**
 * iOS <17 has a bug where the result of mod() is
 * used incorrectly if used inside of another CSS function such
 * as calc(). The first set of @support checks accounts for iOS <17.
 * We check -webkit-named-image to ensure that non-WebKit browsers are ignored.
 * The second set of @support checks account for all other browsers that
 * do not support mod() yet.
 */
@supports ((border-radius: mod(1px, 1px)) and (background: -webkit-named-image(apple-pay-logo-black)) and (not (contain-intrinsic-size: none))) or (not (border-radius: mod(1px, 1px))) {
  .calendar-days-of-week .day-of-week {
    width: auto;
    height: auto;

    overflow: initial;
  }

  .calendar-day {
    @include border-radius(32px);
  }
}

// Calendar / Body
// -----------------------------------
:host .calendar-body .calendar-month .calendar-month-grid {

  /**
   * We need to apply the padding to
   * each month grid item otherwise
   * older versions of WebKit will consider
   * this padding a snapping point if applied
   * on .calendar-month
   */
  @include padding($datetime-ios-padding * 0.5, $datetime-ios-padding * 0.5, $datetime-ios-padding * 0.5, $datetime-ios-padding * 0.5);

  align-items: center;

  height: calc(100% - #{$datetime-ios-padding});
}

:host .calendar-day-wrapper {
  @include padding(4px);

  // This is required so that the calendar day wrapper
  // will collapse instead of expanding to fill the button
  height: 0;

  min-height: dynamic-font(16px);
}

:host .calendar-day {
  width: $datetime-ios-day-width;
  min-width: $datetime-ios-day-width;

  height: $datetime-ios-day-height;

  font-size: dynamic-font-max(20px, 1.6);
}

.calendar-day.calendar-day-active {
  background: current-color(base, 0.2);

  font-size: dynamic-font-max(22px, 1.6);
}

/**
 * Day that today but not selected
 * should have ion-color for text color.
 */
:host .calendar-day.calendar-day-today {
  color: current-color(base);
}

/**
 * Day that is not today but
 * is selected should have ion-color for
 * text color and be bolder.
 */
:host .calendar-day.calendar-day-active,
:host .calendar-day.calendar-day-adjacent-day.calendar-day-active {
  color: current-color(base);

  font-weight: 600;
}

/**
 * Day that is selected and is today
 * should have base background color
 * with contrast text.
 */
:host .calendar-day.calendar-day-today.calendar-day-active {
  background: current-color(base);
  color: current-color(contrast);
}

:host .calendar-day.calendar-day-adjacent-day {
  color: $text-color-step-700;
}

// Time / Header
// -----------------------------------
:host .datetime-time {
  @include padding($datetime-ios-padding * 0.5, $datetime-ios-padding, $datetime-ios-padding, $datetime-ios-padding);

  font-size: dynamic-font-max(16px, 1.6);
}

:host .datetime-time .time-header {
  font-weight: 600;
}

// Footer
// -----------------------------------
:host .datetime-buttons {
  @include padding($datetime-ios-padding * 0.5, $datetime-ios-padding * 0.5, $datetime-ios-padding * 0.5, $datetime-ios-padding * 0.5);

  border-top: $datetime-ios-border-color;
}

:host .datetime-buttons ::slotted(ion-buttons),
:host .datetime-buttons ion-buttons {
  display: flex;

  align-items: center;
  justify-content: space-between;
}

:host .datetime-action-buttons {
  width: 100%;
}