@charset "UTF-8";

// Built-in modules
@use "sass:color";
@use "sass:list";
@use "sass:map";
@use "sass:math";
@use "sass:meta";
@use "sass:selector";
@use "sass:string";

// Mixkit settings and modules
@use "mixkit/settings" as settings;
@use "to-string" as *;

/// Convert a string or number to a list.
///
/// @name to-number
///
/// @group mixkit/convert
///
/// @param {string} $value
///
/// @return {number}
///
/// @require {function (mixkit/convert)} to-string
///
/// @access public
///
/// @since 1.0.0

@function to-number($value) {
    // Vars
    $result: 0;
    $digits: 0;
    $minus: string.slice($value, 1, 1) == "-";
    $numbers: ("0": 0, "1": 1, "2": 2, "3": 3, "4": 4, "5": 5, "6": 6, "7": 7, "8": 8, "9": 9);

    // Check args
    @if not meta.type-of($value) == "string"
        or not meta.type-of($value) == "number" {
        @error "Invalid argument type/s.";
    }

    // Return immediately
    @if meta.type-of($value) == "number" {
        @return $value;
    }

    // Logic
    @for $i from if($minus, 2, 1) through string.length($value) {
        $char: string.slice($value, $i, $i);

        @if string.index(to-string(map.keys($numbers)), $char) or $char == "." {
            @if $char == "." {
                $digits: 1;
            } @else if $digits == 0 {
                $result: $result * 10 + map.get($numbers, $char);
            } @else {
                $digits: $digits * 10;
                $result: $result + map.get($numbers, $char) / $digits;
            }
        }
    }

    @return if($minus, -$result, $result);
}