@use '../../theme/styles' as theme;

.wr-window {
  --wr-window-bg: var(--wr-color-white);
  --wr-window-border: var(--wr-color-light);
  --wr-window-chrome-bg: var(--wr-color-hover);
  --wr-window-chrome-color: var(--wr-color-dark);
  --wr-window-radius: var(--wr-border-radius-base);
  --wr-window-handle-size: 8px;
  --wr-window-chrome-height: 2.25rem;
  --wr-window-title-size: var(--wr-text-sm);
  --wr-window-action-size: 1.5rem;
  --wr-window-anim-duration: 0.18s;

  position: fixed;
  display: flex;
  flex-direction: column;
  background: var(--wr-window-bg);
  border: 1px solid var(--wr-window-border);
  @include theme.smooth-br(var(--wr-window-radius));
  box-shadow: var(--wr-shadow-modal);
  font-family: var(--wr-font-family-base);
  color: var(--wr-color-dark);
  overflow: hidden;
  user-select: none;
  // Enter animation — popover-style fade + scale-up. Disabled by
  // .wr-window--no-anim and prefers-reduced-motion below.
  //
  // Notably absent: a `transition` on left / top / width / height.
  // The drag + resize handlers write those signals on every pointer
  // move; animating each tick makes the window lag behind the cursor.
  animation: wr-window-in var(--wr-window-anim-duration) var(--wr-ease-out, ease-out);
  transform-origin: top left;

  &--closed,
  &--minimized {
    display: none;
  }

  &--maximized {
    border-radius: 0;
  }

  // Compact title bar — useful for utility / docked panels where every
  // pixel of vertical space matters.
  &--chrome-compact {
    --wr-window-chrome-height: 1.625rem;
    --wr-window-title-size: var(--wr-text-xs);
    --wr-window-action-size: 1.125rem;
  }

  &--no-anim,
  &--no-anim * {
    animation: none !important;
    transition: none !important;
  }

  @media (prefers-reduced-motion: reduce) {
    animation: none;
    transition: none;
  }

  // Chrome (title bar)
  &__chrome {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    height: var(--wr-window-chrome-height);
    padding: 0 0.25rem 0 0.75rem;
    background: var(--wr-window-chrome-bg);
    color: var(--wr-window-chrome-color);
    cursor: grab;
    border-bottom: 1px solid var(--wr-window-border);
    touch-action: none;

    &:active {
      cursor: grabbing;
    }
  }

  &__title {
    flex: 1 1 auto;
    font-size: var(--wr-window-title-size);
    font-weight: 600;
    line-height: 1.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  &__title-extra {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding-right: 0.375rem;
    font-size: var(--wr-text-xs);

    &:empty {
      display: none;
    }
  }

  &__chrome-actions {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    gap: 0.125rem;
  }

  &__chrome-action {
    appearance: none;
    background: transparent;
    border: 0;
    padding: 0;
    width: var(--wr-window-action-size);
    height: var(--wr-window-action-size);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--wr-color-medium);
    cursor: pointer;
    border-radius: var(--wr-border-radius-sm);
    transition:
      color var(--wr-transition-base),
      background var(--wr-transition-base);

    &:hover {
      color: var(--wr-color-dark);
      background: rgba(var(--wr-color-light-rgb), 0.6);
    }

    &--close:hover {
      color: var(--wr-color-white);
      background: var(--wr-color-danger);
    }
  }

  // OS preset: macOS — traffic-light dots, LEFT-aligned, colored
  //                   (close = red, minimize = yellow, maximize = green).
  //
  // Native macOS hides the glyphs (×, −, +) until the cursor enters the
  // cluster. Mirror that.
  &--os-macos {
    .wr-window__chrome {
      flex-direction: row-reverse;
    }
    .wr-window__title {
      text-align: center;
      padding-right: 5rem; // counterbalance the cluster on the left
    }
    .wr-window__chrome-actions {
      gap: 0.5rem;
      padding-left: 0.5rem;
    }
    .wr-window__chrome-action {
      width: 0.875rem; // 14px — bigger than the prior 12px to match native
      height: 0.875rem;
      border-radius: 50%;
      color: rgba(var(--wr-color-black-rgb), 0.55); // glyph color (revealed on hover)

      &--close,
      &--close:hover {
        background: #ff5f57;
      }
      &--minimize,
      &--minimize:hover {
        background: #febc2e;
      }
      &--maximize,
      &--maximize:hover {
        background: #28c840;
      }

      &:hover {
        filter: brightness(0.92);
      }
    }
    // Glyphs are invisible by default and fade in as soon as the cursor
    // enters the cluster — native macOS behaviour.
    .wr-window__chrome-action-glyph {
      width: 100%;
      height: 100%;
      opacity: 0;
      transition: opacity 0.12s ease;
    }
    .wr-window__chrome-actions:hover .wr-window__chrome-action-glyph {
      opacity: 1;
    }
  }

  // OS preset: Linux (GNOME-style) — chrome-action retains the windows
  //                   look but the chrome bar is slightly taller and the
  //                   title stays left-aligned (close-only is enforced by
  //                   the template).
  &--os-linux {
    .wr-window__chrome {
      height: 2.5rem;
    }
    .wr-window__title {
      font-weight: 500;
    }
  }

  // Body
  &__body {
    flex: 1 1 auto;
    min-height: 0;
    overflow: auto;
    padding: 0.875rem 1rem;
    user-select: text;
  }

  &--minimized &__body {
    display: none;
  }

  &__status-bar {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-top: 1px solid var(--wr-window-border);
    background: rgba(var(--wr-color-light-rgb), 0.25);
    font-size: var(--wr-text-xs);
    color: var(--wr-color-medium);

    &:empty {
      display: none;
    }
  }

  &--minimized &__status-bar {
    display: none;
  }

  // Resize handles (only rendered in normal state)
  &__handle {
    position: absolute;
    z-index: 1;

    &--t {
      top: -2px;
      left: 0;
      right: 0;
      height: var(--wr-window-handle-size);
      cursor: ns-resize;
    }
    &--b {
      bottom: -2px;
      left: 0;
      right: 0;
      height: var(--wr-window-handle-size);
      cursor: ns-resize;
    }
    &--l {
      top: 0;
      bottom: 0;
      left: -2px;
      width: var(--wr-window-handle-size);
      cursor: ew-resize;
    }
    &--r {
      top: 0;
      bottom: 0;
      right: -2px;
      width: var(--wr-window-handle-size);
      cursor: ew-resize;
    }

    &--tl {
      top: -2px;
      left: -2px;
      width: 14px;
      height: 14px;
      cursor: nwse-resize;
    }
    &--tr {
      top: -2px;
      right: -2px;
      width: 14px;
      height: 14px;
      cursor: nesw-resize;
    }
    &--bl {
      bottom: -2px;
      left: -2px;
      width: 14px;
      height: 14px;
      cursor: nesw-resize;
    }
    &--br {
      bottom: -2px;
      right: -2px;
      width: 14px;
      height: 14px;
      cursor: nwse-resize;
    }
  }
}

// Snap hint — translucent rectangle showing the target region the
//                 window will jump into when the pointer is released.
.wr-window__snap-hint {
  position: fixed;
  pointer-events: none;
  z-index: var(--wr-z-window, 1100);
  background: rgba(var(--wr-color-primary-rgb), 0.18);
  border: 2px solid var(--wr-color-primary);
  border-radius: var(--wr-border-radius-base);
  transition: all 0.12s ease;

  &[data-target='top'] {
    inset: 0;
  }
  &[data-target='left'] {
    inset: 0 50% 0 0;
  }
  &[data-target='right'] {
    inset: 0 0 0 50%;
  }
  &[data-target='top-left'] {
    inset: 0 50% 50% 0;
  }
  &[data-target='top-right'] {
    inset: 0 0 50% 50%;
  }
  &[data-target='bottom-left'] {
    inset: 50% 50% 0 0;
  }
  &[data-target='bottom-right'] {
    inset: 50% 0 0 50%;
  }
}

// Window taskbar — strip of restore tabs for minimized windows.
.wr-window-taskbar {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--wr-z-window, 1100);
  display: block;
  pointer-events: none;
  font-family: var(--wr-font-family-base);

  &--bottom {
    bottom: 0.75rem;
  }
  &--top {
    top: 0.75rem;
  }

  &__rail {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem;
    background: var(--wr-color-white);
    border: 1px solid var(--wr-color-light);
    @include theme.smooth-br(var(--wr-border-radius-base));
    box-shadow: var(--wr-shadow-overlay);
    pointer-events: auto;
  }

  &__tab {
    appearance: none;
    background: transparent;
    border: 0;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.25rem 0.5rem 0.25rem 0.75rem;
    border-radius: var(--wr-border-radius-sm);
    color: var(--wr-color-dark);
    font-family: inherit;
    font-size: var(--wr-text-sm);
    line-height: 1.25rem;
    cursor: pointer;
    max-width: 12rem;
    transition:
      background var(--wr-transition-base),
      color var(--wr-transition-base);

    &:hover {
      background: rgba(var(--wr-color-light-rgb), 0.6);
    }

    &:focus-visible {
      @include theme.focus-ring;
      outline-offset: 2px;
    }
  }

  &__tab-title {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  &__tab-close {
    flex: 0 0 auto;
    width: 1rem;
    height: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--wr-border-radius-sm);
    color: var(--wr-color-medium);
    cursor: pointer;

    &:hover {
      color: var(--wr-color-white);
      background: var(--wr-color-danger);
    }
  }
}

@keyframes wr-window-in {
  from {
    opacity: 0;
    transform: scale(0.97);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}