/// https://css-tricks.com/snippets/sass/deep-getset-maps/


/// Map deep get
/// @author Hugo Giraudel
/// @access public
/// @param {Map} $map - Map
/// @param {Arglist} $keys - Key chain
/// @return {*} - Desired value
@function map-deep-get($map, $keys...) {
    @each $key in $keys {
        $map: map-get($map, $key);
    }
    @return $map;
}

/// Deep set function to set a value in nested maps
/// @author Hugo Giraudel
/// @access public
/// @param {Map} $map - Map
/// @param {List} $keys -  Key chaine
/// @param {*} $value - Value to assign
/// @return {Map}
@function map-deep-set($map, $keys, $value) {
    $maps: ($map,);
    $result: null;

    // If the last key is a map already
    // Warn the user we will be overriding it with $value
    @if type-of(nth($keys, -1)) == "map" {
        @warn "The last key you specified is a map; it will be overrided with `#{$value}`.";
    }

    // If $keys is a single key
    // Just merge and return
    @if length($keys) == 1 {
        @return map-merge($map, ($keys: $value));
    }

    // Loop from the first to the second to last key from $keys
    // Store the associated map to this key in the $maps list
    // If the key doesn't exist, throw an error
    @for $i from 1 through length($keys) - 1 {
        $current-key: nth($keys, $i);
        $current-map: nth($maps, -1);
        $current-get: map-get($current-map, $current-key);
        @if $current-get == null {
           // @error "Key `#{$key}` doesn't exist at current level in map.";
        }
        $maps: append($maps, $current-get);
    }

    // Loop from the last map to the first one
    // Merge it with the previous one
    @for $i from length($maps) through 1 {
        $current-map: nth($maps, $i);
        $current-key: nth($keys, $i);
        $current-val: if($i == length($maps), $value, $result);
        $result: map-merge($current-map, ($current-key: $current-val));
    }

    // Return result
    @return $result;
}