<template>
	<u-popup v-model="visible" mode="bottom" border-radius="24" :safe-area-inset-bottom="true" :mask-close-able="true"
		@close="close">
		<view class="popup-content">
			<!-- Header -->
			<view class="header">
				<text class="title">选择商品品相</text>
				<image src="/pages-sell/static/select-good/icon-close.png" class="close-icon" @click="close"></image>
			</view>

			<!-- Product Info -->
			<view class="product-info">
				<image :src="currentProduct.cover" class="book-cover" mode="aspectFill"></image>
				<view class="info-right">
					<view class="price-row">
						<text class="currency">¥</text>
						<text class="price">{{ currentProduct.price }}</text>
						<view class="drop-tag">
							<text>↓可降至 ¥{{ currentProduct.minPrice || '8.67' }}</text>
						</view>
					</view>
					<view class="tag-row">
						<view class="quality-tag">
							<text>品相{{ currentQualityName }}</text>
						</view>
					</view>
				</view>
			</view>

			<!-- Tips -->
			<view class="tips-row">
				<text>不同品相有什么区别</text>
				<image src="/pages-sell/static/select-good/icon-tips.png" class="tips-icon"></image>
			</view>

			<!-- Promo Note -->
			<view class="promo-note">
				<text>下单时用书购余额支付可享余额价 ( 售价 8 折优惠 )</text>
			</view>

			<!-- Options -->
			<view class="options-list">
				<view class="option-item" v-for="(opt, index) in qualityOptions" :key="index"
					:class="{ active: currentQuality === opt.value }" @click="selectQuality(opt.value)">
					<image v-if="currentQuality === opt.value" src="/pages-sell/static/select-good/selected.png"
						class="bg-image"></image>
					<view class="left">
						<text class="opt-name">{{ opt.name }}</text>
						<view class="opt-discount" :class="{ active: currentQuality === opt.value }">
							<text>{{ opt.discount }}折</text>
						</view>
					</view>
					<view class="right">
						<text>¥{{ opt.price }} ( 余额价 ¥{{ opt.balancePrice }} )</text>
					</view>
				</view>
			</view>

			<!-- Quantity -->
			<view class="quantity-row">
				<text class="label">数量</text>
				<u-number-box v-model="quantity" :min="1" :max="99"></u-number-box>
			</view>

			<!-- Footer Buttons -->
			<view class="footer-btns">
				<view class="btn btn-orange">
					<text class="price">¥0.3</text>
					<text class="desc">分享一人可降 0.5 元</text>
				</view>
				<view class="btn btn-green" @click="handleConfirm">
					<text class="price">¥0.5</text>
					<text class="desc">加入购物车</text>
				</view>
			</view>
		</view>
	</u-popup>
</template>

<script>
export default {
	name: 'SelectGoodPopup',
	data() {
		return {
			visible: false,
			quantity: 1,
			currentQuality: 'medium',
			currentProduct: {},
			qualityOptions: [
				{ name: '中等', value: 'medium', discount: '5.3', price: '33.3', balancePrice: '8.6' },
				{ name: '良品', value: 'good', discount: '5.3', price: '33.3', balancePrice: '8.6' },
				{ name: '良品', value: 'good2', discount: '5.3', price: '33.3', balancePrice: '8.6' }
			]
		};
	},
	computed: {
		currentQualityName() {
			const opt = this.qualityOptions.find(o => o.value === this.currentQuality);
			return opt ? opt.name : '';
		}
	},
	methods: {
		open(product) {
			this.currentProduct = product || {};
			this.visible = true;
			this.quantity = 1;
			this.currentQuality = 'medium';
		},
		close() {
			this.visible = false;
		},
		selectQuality(val) {
			this.currentQuality = val;
		},
		handleConfirm() {
			this.$emit('confirm', {
				product: this.currentProduct,
				quality: this.currentQuality,
				quantity: this.quantity
			});
			this.close();
		}
	}
};
</script>

<style lang="scss" scoped>
.popup-content {
	padding: 30rpx 30rpx 20rpx;
	background-color: #fff;
	position: relative;
}

.header {
	display: flex;
	justify-content: center;
	align-items: center;
	position: relative;
	margin-bottom: 30rpx;
	padding-bottom: 30rpx;
	border-bottom: 2rpx dashed #eee;

	.title {
		font-size: 34rpx;
		font-weight: bold;
		color: #333;
	}

	.close-icon {
		position: absolute;
		right: 0;
		top: 0;
		width: 24rpx;
		height: 24rpx;
		padding: 10rpx;
		box-sizing: content-box;
	}
}

.product-info {
	display: flex;
	margin-bottom: 30rpx;

	.book-cover {
		width: 140rpx;
		height: 180rpx;
		border-radius: 8rpx;
		margin-right: 24rpx;
		background-color: #f5f5f5;
	}

	.info-right {
		flex: 1;
		display: flex;
		flex-direction: column;
		justify-content: space-between;
		padding: 10rpx 0;

		.price-row {
			display: flex;
			align-items: center;

			.currency {
				font-size: 36rpx;
				color: #D81A00;
				font-weight: bold;
			}

			.price {
				font-size: 40rpx;
				color: #D81A00;
				font-weight: bold;
				margin-right: 20rpx;
				line-height: 1;
			}

			.drop-tag {
				background: #E8F9EA;
				padding: 4rpx 12rpx;
				border-radius: 4rpx;

				text {
					color: #38C248;
					font-size: 24rpx;
					font-weight: 500;
				}
			}
		}

		.tag-row {
			.quality-tag {
				display: inline-block;
				background: linear-gradient(0deg, #FFAB26 0%, #FFD426 100%);
				border-radius: 21rpx 0px 21rpx 0px;
				padding: 2rpx 24rpx;
				margin-bottom: 24rpx;

				text {
					color: #fff;
					font-size: 24rpx;
					font-weight: 500;
				}
			}
		}
	}
}

.tips-row {
	display: flex;
	align-items: center;
	margin-bottom: 16rpx;

	text {
		font-size: 26rpx;
		color: #8D8D8D;
		margin-right: 10rpx;
	}

	.tips-icon {
		width: 36rpx;
		height: 36rpx;
	}
}

.promo-note {
	margin-bottom: 40rpx;

	text {
		font-size: 26rpx;
		color: #8D8D8D;
	}
}

.options-list {
	margin-bottom: 40rpx;

	.option-item {
		position: relative;
		display: flex;
		justify-content: space-between;
		align-items: center;
		background: #F8F8F8;
		border-radius: 12rpx;
		padding: 24rpx 30rpx;
		margin-bottom: 24rpx;
		border: 2rpx solid #dfdfdf;
		transition: all 0.2s;

		&.active {
			border-color: transparent;
		}

		.bg-image {
			position: absolute;
			top: -6rpx;
			left: -1%;
			width: 102%;
			height: 110rpx;
			z-index: 0;
		}

		.left,
		.right {
			position: relative;
			z-index: 1;
		}

		.left {
			display: flex;
			align-items: center;

			.opt-name {
				font-size: 30rpx;
				font-weight: bold;
				color: #333;
				margin-right: 16rpx;
			}

			.opt-discount {
				background: #D8D8D8;
				border-radius: 8rpx 0 8rpx 0;
				padding: 2rpx 10rpx;

				text {
					color: #fff;
					font-size: 22rpx;
				}

				&.active {
					background: #38C248;
				}
			}
		}

		.right {
			text {
				font-size: 28rpx;
				color: #333;
			}
		}
	}
}

.quantity-row {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 50rpx;

	.label {
		font-size: 30rpx;
		font-weight: bold;
		color: #333;
	}
}

.footer-btns {
	display: flex;
	justify-content: space-between;
	padding-bottom: 10rpx;

	.btn {
		flex: 1;
		height: 100rpx;
		display: flex;
		flex-direction: column;
		align-items: center;
		justify-content: center;
		font-family: Source Han Sans SC;
		font-weight: 500;

		.price {
			font-size: 38rpx;
			color: #fff;
			line-height: 1.2;
		}

		.desc {
			font-size: 24rpx;
			color: #fff;
		}

		&.btn-orange {
			background: linear-gradient(0deg, #EFA941 0%, #FFB84F 100%);
			width: 340rpx;
			border-radius: 50rpx 0 0 50rpx;
		}

		&.btn-green {
			width: 340rpx;
			background: linear-gradient(0deg, #38C248 0%, #5FEA6F 100%);
			border-radius: 0 50rpx 50rpx 0;
		}
	}
}
</style>
