//
// Copyright (c) 2018-present, Vonage. All rights reserved.
//

$shadow-standard: 0 1px 0px rgba($black, 0.15);
$shadow-active: inset 0 2px 3px rgba($black, 0.2);
$shadow-tertiary: inset 0 0 0px 1px $black;

@mixin btn-app-radius {
	border-radius: 6px;

	&.Vlt-btn--small {
		border-radius: 5px;
	}
}

%Vlt-btn {
	align-items: center;
	appearance: none;
	border: 0;
	border-radius: 48px;
	cursor: pointer;
	display: inline-block; // can't be inline-flex because of Safari
	font-size: 1.4rem;
	font-weight: 600;
	justify-content: center;
	line-height: 2.4rem; // needed for Safari
	margin: $unit1 0;
	min-height: 40px;
	min-width: 40px;
	outline: none;
	padding: $unit1 14px; // both paddings added for IE alignment
	text-align: center;
	transition: all 0.3s;
	vertical-align: middle;
	white-space: nowrap;

	&:focus {
		outline: none;
	}

	&:active {
		outline: none;
	}

	svg {
		display: inline-block;
		fill: $white;
		height: 18px;
		margin-right: 8px;
		margin-top: -2px;
		vertical-align: middle;
		width: 18px;

		.vlt-btn--large & {
			margin-right: 10px;
		}
	}

	&:disabled,
	&.Vlt-btn--disabled,
	&.Vlt-btn_disabled {
		@extend %disabled-btn-style;
	}
}

.Vlt-btn {
	@extend %Vlt-btn;

	&--app {
		@extend %Vlt-btn--app;
	}

	&--block {
		width: 100%;
	}

	&--outline {
		@extend %Vlt-btn--outline;
	}

	&--small {
		@extend %Vlt-btn--small;
	}

	&--large {
		@extend %Vlt-btn--large;
	}

	&--primary {
		@extend %Vlt-btn--primary;
	}

	&--secondary {
		@extend %Vlt-btn--secondary;
	}

	&--tertiary {
		@extend %Vlt-btn--tertiary;
	}

	&--quaternary {
		@extend %Vlt-btn--quaternary;
	}

	&--indigo {
		@extend %Vlt-btn--indigo;
	}

	&--orange {
		@extend %Vlt-btn--orange;
	}

	&--destructive {
		@extend %Vlt-btn--destructive;
	}

	&--white {
		@extend %Vlt-btn--white;
	}

	&--icon {
		@extend %Vlt-btn--icon;
	}

	&--icon-right {
		@extend %Vlt-btn--icon-right;
	}

	& + & {
		margin-left: $unit1;
	}

	&--nomargin {
		margin: 0;
	}
}

%Vlt-btn--app {
	@include btn-app-radius;
}

%Vlt-btn--small {
	font-size: 1.2rem;
	line-height: 1.6rem; //needed for Safari
	min-height: 32px;
	min-width: 32px;
	padding: $unit1 12px;

	svg {
		height: 16px;
		width: 16px;
	}
}

%Vlt-btn--large {
	font-size: 1.6rem;
	line-height: 2.4rem; //needed for Safari
	margin: $unit1 0 $unit2;
	min-height: 48px;
	min-width: 48px;
	padding: 12px 24px;

	svg {
		height: 20px;
		margin-right: 14px;
		margin-top: -3px;
		width: 20px;

		&  span {
			margin-left: $unit1;
		}
	}
}

%Vlt-btn--icon {
	svg {
		margin-left: -10px;
		margin-right: -10px;
	}
}

%Vlt-btn--icon-right {
	svg {
		margin-left: 8px;
		margin-right: 0;
	}

	&.Vlt-btn--large {
		svg {
			margin-left: 14px;
		}
	}
}

%Vlt-btn--primary {
	background: $purple-dark;
	color: $white;

	svg {
		fill: $white;
	}

	&:hover,
	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):focus {
		background: darken($purple-dark, 10);
	}

	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):active,
	&.Vlt-btn_active {
		background: darken($purple-dark, 15);
	}

	&.Vlt-btn--outline {
		color: $purple-dark;

		svg {
			fill: $purple-dark;
		}

		&:hover,
		&:not(.Vlt-btn--no-focus):focus {
			background: rgba($purple-dark, 0.1);
		}

		&:not(.Vlt-btn--no-focus):active,
		&.Vlt-btn_active {
			background: rgba($purple-dark, 0.2);
		}
	}
}

%Vlt-btn--secondary {
	background: $black;
	color: $white;

	svg {
		fill: $white;
	}

	&:hover,
	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):focus {
		background: lighten($black, 20);
	}

	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):active,
	&.Vlt-btn_active {
		background: lighten($black, 30);
	}

	&.Vlt-btn--outline {
		color: $black;

		svg {
			fill: $black;
		}

		&:hover,
		&:not(.Vlt-btn--no-focus):focus {
			background: rgba($black, 0.1);
		}

		&:not(.Vlt-btn--no-focus):active,
		&.Vlt-btn_active {
			background: rgba($black, 0.2);
		}
	}
}

%Vlt-btn--tertiary {
	background: $grey-light;
	color: $black;

	svg {
		fill: $black;
	}

	&:hover,
	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):focus {
		background: darken($grey-light, 6);
	}

	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):active,
	&.Vlt-btn_active {
		background: $grey;
	}

	&.Vlt-btn--outline {
		color: $grey-light;

		svg {
			fill: $grey-light;
		}

		&:hover,
		&:not(.Vlt-btn--no-focus):focus {
			background: rgba($grey, 0.1);
		}

		&:not(.Vlt-btn--no-focus):active,
		&.Vlt-btn_active {
			background: rgba($grey, 0.2);
		}
	}
}

%Vlt-btn--destructive {
	background: $red;
	color: $white;

	svg {
		fill: $white;
	}

	&:hover,
	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):focus {
		background: darken($red, 10);
	}

	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):active,
	&.Vlt-btn_active {
		background: darken($red, 15);
	}

	&.Vlt-btn--outline {
		color: $red;

		svg {
			fill: $red;
		}

		&:hover,
		&:not(.Vlt-btn--no-focus):focus {
			background: rgba($red, 0.1);
		}

		&:not(.Vlt-btn--no-focus):active,
		&.Vlt-btn_active {
			background: rgba($red, 0.2);
		}
	}
}

%Vlt-btn--quaternary {
	background: $green;
	color: $white;

	svg {
		fill: $white;
	}

	&:hover,
	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):focus {
		background: darken($green, 6);
	}

	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):active,
	&.Vlt-btn_active {
		background: darken($green, 10);
	}

	&.Vlt-btn--outline {
		color: $green;

		svg {
			fill: $green;
		}

		&:hover,
		&:not(.Vlt-btn--no-focus):focus {
			background: rgba($green, 0.1);
		}

		&:not(.Vlt-btn--no-focus):active,
		&.Vlt-btn_active {
			background: rgba($green, 0.2);
		}
	}
}

%Vlt-btn--indigo {
	background: $indigo;
	color: $white;

	svg {
		fill: $white;
	}

	&:hover,
	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):focus {
		background: darken($indigo, 6);
	}

	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):active,
	&.Vlt-btn_active {
		background: darken($indigo, 10);
	}

	&.Vlt-btn--outline {
		color: $indigo;

		svg {
			fill: $indigo;
		}

		&:hover,
		&:not(.Vlt-btn--no-focus):focus {
			background: rgba($indigo, 0.1);
		}

		&:not(.Vlt-btn--no-focus):active,
		&.Vlt-btn_active {
			background: rgba($indigo, 0.2);
		}
	}
}

%Vlt-btn--orange {
	background: $orange;
	color: $white;

	svg {
		fill: $white;
	}

	&:hover,
	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):focus {
		background: darken($orange, 6);
	}

	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):active,
	&.Vlt-btn_active {
		background: darken($orange, 10);
	}

	&.Vlt-btn--outline {
		color: $orange;

		svg {
			fill: $orange;
		}

		&:hover,
		&:not(.Vlt-btn--no-focus):focus {
			background: rgba($orange, 0.1);
		}

		&:not(.Vlt-btn--no-focus):active,
		&.Vlt-btn_active {
			background: rgba($orange, 0.2);
		}
	}
}

%Vlt-btn--white {
	background: $white;
	color: $black;

	svg {
		fill: $black;
	}

	&:hover,
	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):focus {
		background: $grey-light;
	}

	&:not(.Vlt-btn--no-focus):not(.Vlt-btn--outline):active,
	&.Vlt-btn_active {
		background: $grey;
	}

	&.Vlt-btn--outline {
		color: $white;

		svg {
			fill: $white;
		}

		&:hover,
		&:not(.Vlt-btn--no-focus):focus {
			background: rgba($white, 0.1);
		}

		&:not(.Vlt-btn--no-focus):active,
		&.Vlt-btn_active {
			background: rgba($white, 0.2);
		}
	}
}

%Vlt-btn--outline {
	background-color: transparent;
	box-shadow: inset 0 0 0 1px;

	.Vlt-spinner {
		&:before,
		&:after {
			border-color: currentColor transparent transparent;
		}
	}
}

.Vlt-text-btn,
.Vlt-btn--link,
%Vlt-text-btn {
	@extend %Vlt-text-link;
	@extend .reset-button;
	border-radius: 0;
	box-shadow: none;
	cursor: pointer;
	font-size: 1.5rem;
	padding: 0;
	white-space: nowrap;

	svg {
		fill: $purple-dark;
	}

	&:hover {
		text-decoration: underline;
		transform: none;
	}

	&:active {
		box-shadow: none;
	}

	&:disabled,
	&.Vlt-btn--disabled,
	&.Vlt-btn_disabled {
		@extend %disabled-btn-style;
		background: none !important;
	}
}

.Vlt-btn-group {
	display: flex;

	&:not(.Vlt-btn-group--app) {
		.Vlt-btn {
			&:first-child {
				min-width: 44px;
				padding-left: 20px;
			}

			&:last-child {
				min-width: 44px;
				padding-right: 20px;
			}
		}
	}

	.Vlt-btn {
		@extend %Vlt-btn;
		@extend %Vlt-btn--tertiary;
		margin-left: 0;
		margin-right: 0;

		&:not(:first-child) {
			border-bottom-left-radius: 0;
			border-left: 0;
			border-top-left-radius: 0;
		}

		&:not(:last-child) {
			border-bottom-right-radius: 0;
			border-top-right-radius: 0;
		}

		&:not(.Vlt-btn--no-focus):focus {
			z-index: 2;
		}
	}

	&--app {
		.Vlt-btn {
			background: $grey-light !important;
			position: relative;
			z-index: 1;

			&:before {
				border-radius: 5px;
				bottom: 2px;
				content: '';
				left: 1px;
				position: absolute;
				right: 1px;
				top: 2px;
				transition: background 0.3s;
				z-index: -1;
			}

			&:hover {
				&:before {
					background: $grey;
				}
			}

			&.Vlt-btn_active {
				color: $white !important;

				svg {
					fill: $white !important;
				}

				&:before {
					background: $black;
				}
			}

			&:first-child {
				border-bottom-left-radius: 6px;
				border-top-left-radius: 6px;

				&:before {
					left: 2px;
				}
			}

			&:last-child {
				border-bottom-right-radius: 6px;
				border-top-right-radius: 6px;

				&:before {
					right: 2px;
				}
			}
		}
	}

	&--small {
		.Vlt-btn {
			@extend %Vlt-btn--small;
		}

		&:not(.Vlt-btn-group--app) {
			.Vlt-btn {
				&:first-child {
					min-width: 36px;
					padding-left: 16px;
				}

				&:last-child {
					min-width: 36px;
					padding-right: 16px;
				}
			}
		}
	}

	&--large {
		.Vlt-btn {
			@extend %Vlt-btn--large;
		}

		&:not(.Vlt-btn-group--app) {
			.Vlt-btn {
				&:first-child {
					min-width: 52px;
					padding-left: 28px;
				}

				&:last-child {
					min-width: 52px;
					padding-right: 28px;
				}
			}
		}
	}

	&--icon {
		.Vlt-btn {
			@extend %Vlt-btn--icon;
		}
	}

	&--hover {
		// This is for hover buttons, not for button groups on hover
		border: 0 !important;
		margin-top: -1px;
		opacity: 0;
		padding: 0 !important;
		position: absolute;
		right: $unit2;
		transition: all 0.3s;
		z-index: -1;
	}

	&--inline {
		display: inline-flex;
	}
}

.Vlt-btn-on-hover {
	position: relative;

	&:hover {
		.Vlt-btn-group--hover {
			background-color: transparent;
			opacity: 1;
			z-index: 2;
		}
	}

	&:not(tr):not(td):not(table) {
		.Vlt-btn-group--hover {
			margin-top: 0px;
			top: -$unit2; // this is both here and above in the form of margin-top because that one works in tables and this works everywhere else
		}
	}
}

.Vlt-text-link,
%Vlt-text-link {
	color: $purple-dark;
	cursor: pointer;
	font-size: inherit;
	font-weight: inherit;
	line-height: inherit;

	&:hover {
		color: $purple-darker;
		text-decoration: underline;
	}

	&:active {
		color: $purple-darker;
	}

	&:visited {
		color: $purple-dark;

		&:hover {
			color: $purple-darker;
		}
	}

	&.Vlt-black {
		color: $black;
		font-weight: 600;
		position: relative;

		&:after {
			background-color: $black;
			bottom: -2px;
			content: '';
			height: 1px;
			left: 0;
			position: absolute;
			width: 100%;
		}

		&:hover {
			color: $grey-darker;
			text-decoration: none;

			&:after {
				background-color: $grey-darker;
			}
		}

		&:active {
			color: $grey-darker;
		}

		&:visited {
			color: $black;
		}
	}
}

.reset-button {
	appearance: none;
	background: none;
	border: 0;
	outline: none;
	padding: 0;
}

%disabled-btn-style {
	background: rgba($grey, 0.5);
	border: 0;
	box-shadow: none;
	color: $grey-dark;
	pointer-events: none;

	svg {
		fill: $grey-dark;
	}
}