@mixin each-breakpoint() {
  @each $breakpoint in map-keys($map: $breakpoints-map) {
    @include on-screen($breakpoint) {
      @content;
    }
  }
}

@mixin selectors-for-each-breakpoint(// Selectors to create,
  // could be single or a list of selector eg. margin | 'margin'
  // with round brackets eg. (margin, padding) | ('margin', 'padding')
  $selectors-list,
  // Choose if selectors must be attached to parent (if exists)
  // If parents doesn't exists this param will be skipped
  $attach-to-selector: false,
  // Choose if create selectors without any breakpoints
  $selectors-without-breakpoint: true,
  // Choose if create selectors for each breakpoints
  $selectors-with-breakpoint: true
) {

  // Init variables
  $selectors: ();
  $parent: null;

  // Check if parent exists
  @if & {
    $parent: '&';
  } @else {
    $parent: '';
  }

  // Refactor $parent if must attach the selector
  @if $attach-to-selector == false {
    $parent: '#{$parent} ';
  }

  // If must create the selectors without any breakpoint
  // Append each selector to selectors list
  @if $selectors-without-breakpoint {
    // Loop each selectors
    @each $selector in $selectors-list {
      $selectors: append($selectors, '#{$parent}.#{$selector}', $separator: comma);
    }

    // Check if selectors has length
    // and create the rules
    @if length($selectors) > 0 {
      #{$selectors} {
        @content;
      }
    }
  }

  // Check if must create the selectors for each breakpoints
  @if $selectors-with-breakpoint {
    // Loop each breakpoints
    @each $breakpoint in map-keys($breakpoints-map) {

      // Build breakpoints selector list
      $breakpoint-selectors: ();

      // Append each selector to breakpoints selectors
      @each $selector in $selectors-list {
        $breakpoint-selectors: append($breakpoint-selectors, '#{$parent}.on-#{$breakpoint}-#{$selector}', $separator: comma);
      }

      // Create the Media Query
      @include on-screen($breakpoint) {
        #{$breakpoint-selectors} {
          @content;
        }
      }
    }
  }
}