Vue.component("plan-traffic-ranges", {
	props: ["value"],
	data: function () {
		let ranges = this.value
		if (ranges == null) {
			ranges = []
		}
		return {
			ranges: ranges,
			isAdding: false,

			minGB: "",
			minGBUnit: "gb",

			maxGB: "",
			maxGBUnit: "gb",

			pricePerGB: "",
			totalPrice: "",
			addingRange: {
				minGB: 0,
				maxGB: 0,
				pricePerGB: 0,
				totalPrice: 0
			}
		}
	},
	methods: {
		add: function () {
			this.isAdding = !this.isAdding
			let that = this
			setTimeout(function () {
				that.$refs.minGB.focus()
			})
		},
		cancelAdding: function () {
			this.isAdding = false
		},
		confirm: function () {
			if (this.addingRange.minGB < 0) {
				teaweb.warn("流量下限需要大于0")
				return
			}
			if (this.addingRange.maxGB < 0) {
				teaweb.warn("流量上限需要大于0")
				return
			}
			if (this.addingRange.pricePerGB <= 0 && this.addingRange.totalPrice <= 0) {
				teaweb.warn("请设置单位价格或者总价格")
				return;
			}

			this.isAdding = false
			this.minGB = ""
			this.maxGB = ""
			this.pricePerGB = ""
			this.totalPrice = ""
			this.ranges.push(this.addingRange)
			this.ranges.$sort(function (v1, v2) {
				if (v1.minGB < v2.minGB) {
					return -1
				}
				if (v1.minGB == v2.minGB) {
					if (v2.maxGB == 0 || v1.maxGB < v2.maxGB) {
						return -1
					}
					return 0
				}
				return 1
			})
			this.change()
			this.addingRange = {
				minGB: 0,
				maxGB: 0,
				pricePerGB: 0,
				totalPrice: 0
			}
		},
		remove: function (index) {
			this.ranges.$remove(index)
			this.change()
		},
		change: function () {
			this.$emit("change", this.ranges)
		},
		formatGB: function (gb) {
			return teaweb.formatBytes(gb * 1024 * 1024 * 1024)
		},
		changeMinGB: function (v) {
			let minGB = parseFloat(v.toString())
			if (isNaN(minGB) || minGB < 0) {
				minGB = 0
			}
			switch (this.minGBUnit) {
				case "tb":
					minGB *= 1024
					break
				case "pb":
					minGB *= 1024 * 1024
					break
				case "eb":
					minGB *= 1024 * 1024 * 1024
					break
			}
			this.addingRange.minGB = minGB
		},
		changeMaxGB: function (v) {
			let maxGB = parseFloat(v.toString())
			if (isNaN(maxGB) || maxGB < 0) {
				maxGB = 0
			}
			switch (this.maxGBUnit) {
				case "tb":
					maxGB *= 1024
					break
				case "pb":
					maxGB *= 1024 * 1024
					break
				case "eb":
					maxGB *= 1024 * 1024 * 1024
					break
			}
			this.addingRange.maxGB = maxGB
		}
	},
	watch: {
		minGB: function (v) {
			this.changeMinGB(v)
		},
		minGBUnit: function (v) {
			this.changeMinGB(this.minGB)
		},
		maxGB: function (v) {
			this.changeMaxGB(v)
		},
		maxGBUnit: function (v) {
			this.changeMaxGB(this.maxGB)
		},
		pricePerGB: function (v) {
			let pricePerGB = parseFloat(v.toString())
			if (isNaN(pricePerGB) || pricePerGB < 0) {
				pricePerGB = 0
			}
			this.addingRange.pricePerGB = pricePerGB
		},
		totalPrice: function (v) {
			let totalPrice = parseFloat(v.toString())
			if (isNaN(totalPrice) || totalPrice < 0) {
				totalPrice = 0
			}
			this.addingRange.totalPrice = totalPrice
		}
	},
	template: `<div>
	<!-- 已有价格 -->
	<div v-if="ranges.length > 0">
		<div class="ui label basic small" v-for="(range, index) in ranges" style="margin-bottom: 0.5em">
			{{formatGB(range.minGB)}} - <span v-if="range.maxGB > 0">{{formatGB(range.maxGB)}}</span><span v-else>&infin;</span> &nbsp;  价格：<span v-if="range.totalPrice > 0">{{range.totalPrice}}元</span><span v-else="">{{range.pricePerGB}}元/GB</span>
			&nbsp; <a href="" title="删除" @click.prevent="remove(index)"><i class="icon remove small"></i></a>
		</div>
		<div class="ui divider"></div>
	</div>
	
	<!-- 添加 -->
	<div v-if="isAdding">
		<table class="ui table">
			<tr>
				<td class="title">流量下限 *</td>
				<td>
					<div class="ui fields inline">
						<div class="ui field">
							<input type="text" placeholder="最小流量" style="width: 7em" maxlength="10" ref="minGB" @keyup.enter="confirm()" @keypress.enter.prevent="1" v-model="minGB"/>
						</div>
						<div class="ui field">
							<select class="ui dropdown" v-model="minGBUnit">
								<option value="gb">GB</option>
								<option value="tb">TB</option>
								<option value="pb">PB</option>
								<option value="eb">EB</option>
							</select>
						</div>
					</div>
				</td>
			</tr>
			<tr>
				<td class="title">流量上限 *</td>
				<td>
					<div class="ui fields inline">
						<div class="ui field">
							<input type="text" placeholder="最大流量" style="width: 7em" maxlength="10" @keyup.enter="confirm()" @keypress.enter.prevent="1" v-model="maxGB"/>
						</div>
						<div class="ui field">
							<select class="ui dropdown" v-model="maxGBUnit">
								<option value="gb">GB</option>
								<option value="tb">TB</option>
								<option value="pb">PB</option>
								<option value="eb">EB</option>
							</select>
						</div>
					</div>
					<p class="comment">如果填0，表示上不封顶。</p>
				</td>
			</tr>
			<tr>
				<td class="title">单位价格</td>
				<td>
					<div class="ui input right labeled">
						<input type="text" placeholder="单位价格" style="width: 7em" maxlength="10" @keyup.enter="confirm()" @keypress.enter.prevent="1" v-model="pricePerGB"/>
						<span class="ui label">元/GB</span>
					</div>
					<p class="comment">和总价格二选一。如果设置了单位价格，那么"总价格 = 单位价格 x 流量/GB"。</p>
				</td>
			</tr>
			<tr>
				<td>总价格</td>
				<td>
					<div class="ui input right labeled">
						<input type="text" placeholder="总价格" style="width: 7em" maxlength="10" @keyup.enter="confirm()" @keypress.enter.prevent="1" v-model="totalPrice"/>
						<span class="ui label">元</span>
					</div>
					<p class="comment">固定的总价格，和单位价格二选一。</p>
				</td>
			</tr>
		</table>
		<button class="ui button small" type="button" @click.prevent="confirm">确定</button> &nbsp;
		<a href="" title="取消" @click.prevent="cancelAdding"><i class="icon remove small"></i></a>
	</div>
	
	<!-- 按钮 -->
	<div v-if="!isAdding">
		<button class="ui button small" type="button" @click.prevent="add">+</button>
	</div>
</div>`
})