@use "sass:math";
@use "sass:string";

// Helper function to replace characters in a string
@function str-replace($string, $search, $replace: "") {
    $index: string.index($string, $search);

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

    @return $string;
}

// Encode svg function by http://codepen.io/jakob-e/pen/doMoML
@function svg-encode($svg){
    // Chunk up string in order to avoid "stack level too deep" error
    $encoded: "";
    $slice: 2000;
    $index: 0;
    $loops: math.ceil(math.div(string.length($svg), $slice));

    @for $i from 1 through $loops {
        $chunk: string.slice($svg, $index, $index + $slice - 1);

        // Encode
        $chunk: str-replace($chunk, '"', "\'");
        $chunk: str-replace($chunk, "%", "%25");
        $chunk: str-replace($chunk, "#", "%23");
        $chunk: str-replace($chunk, "{", "%7B");
        $chunk: str-replace($chunk, "}", "%7D");
        $chunk: str-replace($chunk, "<", "%3C");
        $chunk: str-replace($chunk, ">", "%3E");
        $encoded: #{$encoded}#{$chunk};
        $index: $index + $slice;
    }

    @return "data:image/svg+xml,#{$encoded}";
}

@function checkmark($color) {
    $start: '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1 1">';
    $content: '<path style="fill:#{$color}" d="M 0.04038059,0.6267767 0.14644661,0.52071068 0.42928932,0.80355339 0.3232233,0.90961941 z M 0.21715729,0.80355339 0.85355339,0.16715729 0.95961941,0.2732233 0.3232233,0.90961941 z"></path>';
    $end: "</svg>";

    @return svg-encode("#{$start}#{$content}#{$end}");
}

@function indeterminate($color) {
    $start: '<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1 1">';
    $content: '<rect style="fill:#{$color}" width="0.7" height="0.2" x=".15" y=".4"></rect>';
    $end: "</svg>";

    @return svg-encode("#{$start}#{$content}#{$end}");
}