<template>
	<view class="header" v-if="show" :style="headerStyle">
		<view class="header-left">
			<view class="back-btn" @tap="onBack">
				<text class="iconfont icon-left"></text>
			</view>
		</view>
		<view class="header-right">
			<view class="icon-btn" @tap="onSearch">
				<text class="iconfont icon-search"></text>
				<text class="icon-text">搜索</text>
			</view>
			<view class="icon-btn" @tap="onAddToShelf">
				<text class="iconfont icon-bookshelf"></text>
				<text class="icon-text">加入书架</text>
			</view>
			<view class="icon-btn" @tap="onAddBookmark">
				<text class="iconfont icon-bookmark"></text>
				<text class="icon-text">添加书签</text>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		name: 'ReaderHeader',
		props: {
			show: {
				type: Boolean,
				default: false
			},
			capsuleInfo: {
				type: Object,
				default: () => ({
					height: 0,
					top: 0,
					right: 0,
					statusBarHeight: 0
				})
			},
			headerHeight: {
				type: Number,
				default: 90
			}
		},
		computed: {
			headerStyle() {
				return {
					height: `${this.headerHeight}rpx`,
					paddingTop: `${this.capsuleInfo.statusBarHeight}px`
				}
			}
		},
		methods: {
			onBack() {
				this.$emit('back')
			},
			onSearch() {
				this.$emit('search')
			},
			onAddToShelf() {
				this.$emit('add-to-shelf')
			},
			onAddBookmark() {
				this.$emit('add-bookmark')
			}
		}
	}
</script>

<style scoped>
	.header {
		position: fixed;
		top: 0;
		left: 0;
		right: 0;
		display: flex;
		justify-content: space-between;
		align-items: center;
		padding-left: 20rpx;
		padding-right: 20rpx;
		background-color: #ffffff;
		z-index: 100;
	}

	.header-left,
	.header-right {
		display: flex;
		align-items: center;
	}

	.header-right {
		gap: 30rpx;
	}

	.back-btn,
	.icon-btn {
		display: flex;
		flex-direction: column;
		align-items: center;
		color: #000000;
	}

	.icon {
		font-family: "iconfont";
		font-size: 40rpx;
	}

	.icon-text {
		font-size: 20rpx;
		margin-top: 4rpx;
	}
</style>