$-hooks: ();
@use "sass:meta";


/*
 * A system to store a context for a CSS-Selector.
 * Can be used to apply speacial rules when mixins are combined
 */

@function str-replace($string, $search, $replace: '') {
    $index: str-index($string, $search);

    @if $index {
        @return str-slice($string, 1, $index - 1)+$replace+str-replace(str-slice($string, $index + str-length($search)), $search, $replace);
    }

    @return $string;
}

/*
 * Generates a key-safe version of the selector
 */
@function _generate_selector_identifier() {
    $-path: str-replace(#{&}, '.', '');
    $-path: str-replace(#{$-path}, ' ', '');

    @return $-path;
}

@function hook($-key, $-value) {

    $-path: _generate_selector_identifier();

    $-context: ();

    @if map-has-key($-hooks, $-path) {
        $-context: map-get($-hooks, $-path);
    }

    $-context: map-merge($-context, ($-key: $-value));

    $-hooks: map-merge($-hooks, ($-path: $-context)) !global;

    @return 'Creating Hook for '+#{&}+' with '+#{$-key}+': '+#{$-value};
}

@function append-hook($-kwargs) {
    $-path: _generate_selector_identifier();

    $-hooks: map-merge($-hooks, ($-path: map-merge(get-hook(), $-kwargs))) !global;
    @return 'Added '+inspect($-kwargs)+' to the hook of '+#{&};
}

@function has-hook() {
    @return map-has-key($-hooks, _generate_selector_identifier());
}

@function get-hook() {
    $-map: map-get($-hooks, _generate_selector_identifier());

    @if $-map !=null {
        @return $-map;
    }

    @return ('selectors': ());
}

@function get-hook-value($-key) {

    $-hook: get-hook();

    @if $-hook !=null {
        @if map-has-key($-hook, $-key) {
            @return map-get($-hook, $-key);
        }
    }

    @return null;
}

@mixin RV-Utils__Hook--catch {

    @if has-hook() {
        @content;
    }
}

@mixin RV-Utils__Hook--throw($-kwargs, $-css-selectors...) {
    @debug append-hook($-kwargs);
}