//
// Grid System
//

// Generate the extra small columns
@mixin make-xs-column($columns) {
    width: percentage(($columns / $m-grid-columns));
}

// Generate the small columns
@mixin make-sm-column($columns) {
    @media (min-width: map-get($m-layout-breakpoints, md) - 1) {
        width: percentage(($columns / $m-grid-columns));
    }
}

// Generate the medium columns
@mixin make-md-column($columns) {
    @media (min-width: map-get($m-layout-breakpoints, lg) - 1) {
        width: percentage(($columns / $m-grid-columns));
    }
}

// Generate the large columns
@mixin make-lg-column($columns) {
    @media (min-width: map-get($m-layout-breakpoints, xl) - 1) {
        width: percentage(($columns));
    }
}

// Generate grid columns
@mixin make-grid-columns($i: 1, $list: ".m-grid-col-xs-#{$i}, .m-grid-col-sm-#{$i}, .m-grid-col-md-#{$i}, .m-grid-col-lg-#{$i}") {
    @for $i from (1 + 1) through $m-grid-columns {
        $list: "#{$list}, .m-grid-col-xs-#{$i}, .m-grid-col-sm-#{$i}, .m-grid-col-md-#{$i}, .m-grid-col-lg-#{$i}";
    }
}

@mixin calc-grid-column($index, $class, $type) {
    @if ($type == width) and ($index > 0) {
        .m-grid-col-#{$class}-#{$index} {
            width: percentage(($index / $m-grid-columns));
        }
    }
}

@mixin loop-grid-columns($columns, $class, $type) {
    @for $i from 0 through $columns {
        @include calc-grid-column($i, $class, $type);
    }
}

// Create grid for specific class
@mixin make-grid($class) {
    @include loop-grid-columns($m-grid-columns, $class, width);
}

// table based grid

.m-grid {
    display: table;
    width: 100%;
    table-layout: fixed;

    &.m-grid-auto {
        width: auto;
    }

    &.m-grid-full-height {
        height: 100%;

        > .m-grid-row {
            height: 100%;
            position: static;

            > .m-grid-col {
                height: 100%;
            }
        }

        > .m-grid-col {
            height: 100%;
        }
    }

    // grid row
    .m-grid-row {
        display: table-row;

        &.m-grid-row-full-height {
            height: 100%;
            position: static;
        }

        &.m-grid-row-auto-height {
            height: auto;

            > .m-grid-col {
                height: auto;
            }
        }
    }

    // grid column
    .m-grid-col {
        display: table-cell;
        text-align: left;
        vertical-align: top;

        // col options
        &.m-grid-col-full-width {
            width: 100%;
        }

        &.m-grid-col-full-height {
            height: 100%;
        }

        &.m-grid-col-auto-height {
            height: auto;
        }

        &.m-grid-col-top {
            vertical-align: top;
        }

        &.m-grid-col-middle {
            vertical-align: middle;
        }

        &.m-grid-col-bottom {
            vertical-align: bottom;
        }

        &.m-grid-col-left {
            text-align: left;
        }

        &.m-grid-col-center {
            text-align: center;
        }

        &.m-grid-col-right {
            text-align: right;
        }

        &:not(.m-grid-col-middle):not(.m-grid-col-bottom) {
            vertical-align: top;
        }

        // col sizes
        &.m-grid-col-xs,
        &.m-grid-col-sm,
        &.m-grid-col-md,
        &.m-grid-col-lg {
            width: 100%;
            display: block;
        }
    }
}

// Demo grid

.m-grid.m-grid-demo {

    .m-grid-col {
        border: 1px solid #dddddd;
        background: #fafafa;
        height: 100px;
    }
}

// Extra small grid
@include make-grid(xs);

// Small grid
@media (min-width: map-get($m-layout-breakpoints, sm) - 1px) {
    @include make-grid(sm);
}

// Medium grid
@media (min-width: map-get($m-layout-breakpoints, md) - 1px) {
    @include make-grid(md);
}

// Large grid
@media (min-width: map-get($m-layout-breakpoints, lg) - 1px) {
    @include make-grid(lg);
}

// Responsive grids 

//== convert to block below LG resolution
@each $breakpoint, $breakpoint-width in $m-layout-breakpoints {
    @media (max-width: $breakpoint-width - 1px) {
        .m-grid.m-grid-responsive-#{$breakpoint} {
            display: block;
            width: auto;

            > .m-grid-row,
            > .m-grid-row > .m-grid-col,
            > .m-grid-col {
                display: block;
                width: auto;
                height: auto;
            }

            > .m-grid-row {
                display: flex;
                flex-flow: column;
            }

            // flex grid mode
            &.m-grid-flex {
                display: flex;
                flex-flow: column;

                @for $i from (1 + 1) through $m-grid-columns {
                    > .m-grid-row > .m-grid-col-order-#{$i},
                    > .m-grid-col-order-#{$i} {
                        order: #{$i};
                    }
                }
            }
        }
    }
}