@use 'sass:map';
@use 'sass:meta';
@use 'sass:string';
@use 'iro-sass/src/bem';
@use 'iro-sass/src/props';
@use '../props' as *;

@forward 'lightbox.vars';
@use 'lightbox.vars' as vars;

@mixin styles {
    @include materialize-at-root(meta.module-variables('vars'));

    @include bem.object('lightbox') {
        flex:           1 1 auto;
        min-block-size: 0;

        @include bem.elem('header') {
            display:             flex;
            grid-area:           header;
            align-items:         flex-start;
            padding-block-start: props.get(vars.$pad);
            padding-inline:      props.get(vars.$pad);
        }

        @include bem.elem('img') {
            box-sizing:      border-box;
            display:         block;
            grid-area:       content;
            place-self:      center;
            inline-size:     auto;
            max-inline-size: 100%;
            block-size:      auto;
            max-block-size:  props.get(vars.$image--max-height);
            padding:         props.get(vars.$pad);
            margin-inline:   auto;
        }

        @include bem.elem('thumbnails') {
            display:            none;
            grid-area:          thumbnails;
            gap:                props.get(vars.$thumbnail--spacing);
            padding:            props.get(vars.$pad);
            margin-block-start: calc(-1 * props.get(vars.$pad));
            overflow:           auto;
        }

        @include bem.elem('close-btn') {
            display:            none;
            flex:               0 0 auto;
            margin-block-start: calc(-.5 * props.get(vars.$pad));
            margin-inline:      auto calc(-.5 * props.get(vars.$pad));
            font-size:          props.get(vars.$close-button--font-size);
        }

        @include bem.elem('nav-btn') {
            position:   relative;
            display:    none;
            align-self: center;
            overflow:   visible;
            font-size:  props.get(vars.$nav-button--font-size);

            &::before {
                position:           absolute;
                inset-block-start:  50%;
                display:            block;
                inline-size:        props.get(vars.$nav-button--inline-size);
                block-size:         props.get(vars.$nav-button--block-size);
                content:            '';
                transform:          translateY(-50%);
            }

            @include bem.modifier('prev') {
                grid-area:     prev;
                margin-inline: calc(.5 * props.get(vars.$pad)) calc(-1 * props.get(vars.$pad));

                &::before {
                    inset-inline-start: 0;
                }
            }
    
            @include bem.modifier('next') {
                grid-area:     next;
                margin-inline: calc(-1 * props.get(vars.$pad)) calc(.5 * props.get(vars.$pad));

                &::before {
                    inset-inline-end: 0;
                }
            }
        }

        @include bem.modifier('interactive') {
            display:               grid;
            grid-template-areas:
                'header     header     header'
                'prev       content    next'
                'thumbnails thumbnails thumbnails';
            grid-template-rows:    auto minmax(0, 1fr) auto auto;
            grid-template-columns: auto minmax(0, 1fr) auto;

            @include bem.modifier('fullscreen') {
                block-size: props.get(vars.$fullscreen--height);
            }

            @include bem.elem('img') {
                display:        none;
                max-block-size: 100%;
                margin-inline:  0;

                @include bem.multi('&:target', 'is' 'visible') {
                    display: block;
                }
            }

            @include bem.elem('thumbnails') {
                display: flex;
            }

            @include bem.elem('close-btn') {
                display: block;
            }

            @include bem.elem('nav-btn') {
                display: block;
            }
        }

        @each $theme in map.keys(props.get(vars.$static-themes)) {
            @include bem.modifier(string.slice($theme, 3)) {
                color: props.get(vars.$static-themes, $theme, --text);
            }
        }
    }
}