@use "sass:meta";
@use "sass:map";

/// Returns the value at `$key` in `$map`.
/// @param {Map} $map - The map to get the value from.
/// @param {Any} $key - The key to get the value for.
///
/// @example scss - Usage
///   @debug k-map-get( ( "foo": "bar" ), "foo" ); // => "bar"
@function k-map-get($map, $keys...) {
    @each $key in $keys {
        $map: map.get($map, $key); // stylelint-disable-line
    }
    @return $map;
}

/// Returns a map with the keys and values from `$map` and `$args`.
/// @param {Map} $map - The map to merge.
/// @param {Map} $args - The map to merge into `$map`.
/// @return {Map} - A map with the keys and values from `$map` and `$args`.
///
/// @example scss - Usage
///   @debug k-map-merge( ( "foo": "bar" ), ( "baz": "qux" ) ); // => ( "foo": "bar", "baz": "qux" )
@function k-map-merge($map, $args...) {
    @each $arg in $args {
        $map: map.merge($map, $arg); // stylelint-disable-line
    }
    @return $map;
}

/// Returns a deep-map with the keys and values from `$map` and `$args`.
/// @param {Map} $maps - The maps to deep-merge.
/// @return {Map} - A map with the keys and values from `$map` and `$args`.
///
/// @example scss - Usage
///   @debug k-map-deep-merge( ( "foo": ("bar": "baz", "baz": "qux" ) ), ( "foo": ("bar": "foo") ) ); // => ( "foo": ("bar": "foo", "baz": "qux" ))
@function k-map-deep-merge($maps...) {
    $merged: ();

    @each $map in $maps {
        @each $key, $val in $map {
            @if (meta.type-of($val) == "map") {
                $current: k-map-get($merged, $key);
                @if (meta.type-of($current) == "map") {
                    $val: k-map-deep-merge($current, $val);
                    $map: k-map-merge(
                        $map,
                        (
                            $key: $val,
                        )
                    );
                }
            }
        }
        $merged: k-map-merge($merged, $map);
    }

    @return $merged;
}

/// Sets a single key and value in `$map`.
/// @param {Map} $map - The map to set the value in.
/// @param {Any} $key - The key to set the value for.
/// @param {Any} $value - The value to set.
/// @return {Map} - A map with the key and value set.
///
/// @example scss - Usage
///   @debug k-map-set( ( "foo": "bar" ), "baz", "qux" ); // => ( "foo": "bar", "baz": "qux" )
@function k-map-set($map, $key, $value) {
    @return k-map-merge(
        $map,
        (
            $key: $value,
        )
    );
}

/// Returns negative values of a number or numbers in a list.
/// @param {Map} $map - The map to get the values from.
/// @return {Map} - A comma separated list of the values in `$map`.
///
/// @example scss - Usage
///   @debug k-map-negate( ( 0: 0, 1: 1px, 2: 2px ) ); // => ("-1": -1px, "-2": -2px)
@function k-map-negate($map) {
    $_map-neg: ();

    @if (meta.type-of($map) != map) {
        @error "expected type of #{$map} is map, was #{meta.type-of($map)}";
    }
    @each $key, $value in $map {
        $_key-neg: "-" + $key;

        @if (meta.type-of($value) == number and $value != 0 and $_key-neg != "-0") {
            $_map-neg: k-map-set($_map-neg, $_key-neg, -1 * $value);
        }
    }

    @return $_map-neg;
}