@mixin keyframes($name) {
    @-webkit-keyframes #{$name} {
        @content;
    }

    @-moz-keyframes #{$name} {
        @content;
    }

    @keyframes #{$name} {
        @content;
    }
}

@mixin prefix($map, $vendors: webkit moz ms o) {
    @each $prop, $value in $map {
        @if $vendors {
            @each $vendor in $vendors {
                #{"-" + $vendor + "-" + $prop}: #{$value};
            }
        }

        // Dump regular property anyway
        #{$prop}: #{$value};
    }
}

@include keyframes(passing-through) {
    0% {
        opacity: 0;

        @include prefix(
            (
                transform: translateY(40px),
            )
        );
    }

    30%,
    70% {
        opacity: 1;

        @include prefix(
            (
                transform: translateY(0px),
            )
        );
    }

    100% {
        opacity: 0;

        @include prefix(
            (
                transform: translateY(-40px),
            )
        );
    }
}

@include keyframes(slide-in) {
    0% {
        opacity: 0;

        @include prefix(
            (
                transform: translateY(40px),
            )
        );
    }

    30% {
        opacity: 1;

        @include prefix(
            (
                transform: translateY(0px),
            )
        );
    }
}

@include keyframes(pulse) {
    0% {
        @include prefix(
            (
                transform: scale(1),
            )
        );
    }

    10% {
        @include prefix(
            (
                transform: scale(1.1),
            )
        );
    }

    20% {
        @include prefix(
            (
                transform: scale(1),
            )
        );
    }
}

.dropzone,
.dropzone * {
    box-sizing: border-box;
}

.dropzone {
    $image-size: 120px;
    $image-border-radius: 0;
    display: none;

    &.fullscreen {
        align-items: center;
        justify-content: center;
        display: flex;
        position: absolute;
        height: 100%;
        width: 100%;
        z-index: 2001;
        background-color: rgba(255, 255, 255, 0.5);
        top: 0;
        left: 0;
        border: 0;
    }

    &.dz-clickable {
        cursor: pointer;

        * {
            cursor: default;
        }

        .dz-message {
            &,
            * {
                cursor: pointer;
            }
        }
    }

    &.dz-started {
        padding: 12px;
        background-color: #fff;
        display: block;
        position: fixed;
        bottom: 0;
        height: auto;
        left: 0;
        width: 100%;
        border-top: 1px solid $gray-400;
        z-index: 2001;
        box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
        .dz-message {
            display: none;
        }
    }

    &.dz-drag-hover {
        border-style: solid;
    }

    .dz-message {
        text-align: center;
        margin-top: 55px;
        font-size: 18px;
        background-color: $gray-800;
        border-radius: 30px;
        padding: 10px 30px;
        color: #fff;
        pointer-events: none;
    }

    .dz-preview {
        position: relative;
        display: inline-block;
        vertical-align: top;
        margin: 8px;
        min-height: 100px;

        &:hover {
            // Making sure that always the hovered preview element is on top
            z-index: 1000;

            .dz-details {
                opacity: 1;
            }
        }

        &.dz-file-preview {
            .dz-image {
                border-radius: $image-border-radius;
                background: #999;
                background: linear-gradient(to bottom, #eee, #ddd);
            }

            .dz-details {
                opacity: 1;
            }
        }

        &.dz-image-preview {
            background: white;

            .dz-details {
                @include prefix(
                    (
                        transition: opacity 0.2s linear,
                    )
                );
            }
        }

        .dz-remove {
            font-size: 14px;
            text-align: center;
            display: block;
            cursor: pointer;
            border: none;

            &:hover {
                text-decoration: underline;
            }
        }

        &:hover .dz-details {
            opacity: 1;
        }

        .dz-details {
            $background-color: #444;

            z-index: 20;
            position: absolute;
            top: 0;
            left: 0;
            opacity: 0;
            font-size: 13px;
            min-width: 100%;
            max-width: 100%;
            padding: 2em 1em;
            text-align: center;
            color: rgba(0, 0, 0, 0.9);

            $width: 120px;

            line-height: 150%;

            .dz-size {
                margin-bottom: 1em;
                font-size: 16px;
            }

            .dz-filename {
                white-space: nowrap;

                &:hover {
                    span {
                        border: 1px solid rgba(200, 200, 200, 0.8);
                        background-color: rgba(255, 255, 255, 0.8);
                    }
                }

                &:not(:hover) {
                    span {
                        border: 1px solid transparent;
                    }

                    overflow: hidden;
                    text-overflow: ellipsis;
                }
            }

            .dz-filename,
            .dz-size {
                span {
                    background-color: rgba(255, 255, 255, 0.4);
                    padding: 0 0.4em;
                    border-radius: 3px;
                }
            }
        }

        &:hover {
            .dz-image {
                // opacity: 0.8;
                img {
                    @include prefix(
                        (
                            transform: scale(1.05, 1.05),
                        )
                    );

                    // Getting rid of that white bleed-in
                    @include prefix(
                        (
                            filter: blur(8px),
                        ),
                        webkit
                    );

                    // Getting rid of that white bleed-in
                }
            }
        }

        .dz-image {
            border-radius: $image-border-radius;
            overflow: hidden;
            width: $image-size;
            height: $image-size;
            position: relative;
            display: block;
            z-index: 10;

            img {
                display: block;
            }
        }

        &.dz-success {
            .dz-success-mark {
                @include prefix(
                    (
                        animation: passing-through 3s cubic-bezier(0.77, 0, 0.175, 1),
                    )
                );
            }
        }

        &.dz-error {
            .dz-error-mark {
                opacity: 1;

                @include prefix(
                    (
                        animation: slide-in 3s cubic-bezier(0.77, 0, 0.175, 1),
                    )
                );
            }
        }

        .dz-success-mark,
        .dz-error-mark {
            $image-height: 54px;
            $image-width: 54px;

            pointer-events: none;
            opacity: 0;
            z-index: 500;
            position: absolute;
            display: block;
            top: 50%;
            left: 50%;
            margin-left: $image-width * -0.5;
            margin-top: $image-height * -0.5;

            svg {
                display: block;
                width: $image-width;
                height: $image-height;
            }
        }

        &.dz-processing .dz-progress {
            opacity: 1;

            @include prefix(
                (
                    transition: all 0.2s linear,
                )
            );
        }

        &.dz-complete .dz-progress {
            opacity: 0;

            @include prefix(
                (
                    transition: opacity 0.4s ease-in,
                )
            );
        }

        &:not(.dz-processing) {
            .dz-progress {
                @include prefix(
                    (
                        animation: pulse 6s ease infinite,
                    )
                );
            }
        }

        .dz-progress {
            opacity: 1;
            z-index: 1000;
            pointer-events: none;
            position: absolute;
            height: 16px;
            left: 50%;
            top: 50%;
            margin-top: -8px;
            width: 80px;
            margin-left: -40px;

            // border: 2px solid #333;
            background: rgba(255, 255, 255, 0.9);

            // Fix for chrome bug: https://code.google.com/p/chromium/issues/detail?id=157218
            -webkit-transform: scale(1);
            border-radius: 8px;
            overflow: hidden;

            .dz-upload {
                background: #333;
                background: linear-gradient(to bottom, #666, #444);
                position: absolute;
                top: 0;
                left: 0;
                bottom: 0;
                width: 0;

                @include prefix(
                    (
                        transition: width 300ms ease-in-out,
                    )
                );
            }
        }

        &.dz-error {
            .dz-error-message {
                display: block;
            }

            &:hover .dz-error-message {
                opacity: 1;
                pointer-events: auto;
            }
        }

        .dz-error-message {
            $width: $image-size + 20px;
            $color: rgb(190, 38, 38);

            pointer-events: none;
            z-index: 1000;
            position: absolute;
            display: block;
            display: none;
            opacity: 0;

            @include prefix(
                (
                    transition: opacity 0.3s ease,
                )
            );

            border-radius: 8px;
            font-size: 13px;
            bottom: $image-size + 10px;
            left: -10px;
            width: $width;
            background: $color;
            background: linear-gradient(to bottom, $color, darken($color, 5%));
            padding: 0.5em 1.2em;
            color: white;

            // The triangle pointing up
            &:after {
                content: '';
                position: absolute;
                bottom: -6px;
                left: ($width * 0.5) - 6px;
                width: 0;
                height: 0;
                border-left: 6px solid transparent;
                border-right: 6px solid transparent;
                border-top: 6px solid $color;
            }
        }
    }
}