<template>
	<view class="main-mask">
		<view class="main-plate animation-scale-up">
			<!-- <view class="main-plate-head">
				<view class="main-plate-type">
					<radio-group @change="Changetype">
						<label>
							<radio value="1" :checked="type===1" />
							普通车牌
						</label>
						<label>
							<radio value="2" :checked="type===2" />
							新能源车牌
						</label>
					</radio-group>
				</view>
			</view> -->
			<view class="main-plate-body">
				<view class="main-plate-word" :class="{ active: currenttIndex == 0 }" @tap="inputSwitch"
					data-index="0">
					<text>{{ currentInputValue[0] }}</text>
				</view>
				<view class="main-plate-word" :class="{ active: currenttIndex == 1 }" @tap="inputSwitch"
					data-index="1">
					<text>{{ currentInputValue[1] }}</text>
				</view>
				<view class="main-plate-dot"></view>
				<view class="main-plate-word" :class="{ active: currenttIndex == 2 }" @tap="inputSwitch"
					data-index="2">
					<text>{{ currentInputValue[2] }}</text>
				</view>
				<view class="main-plate-word" :class="{ active: currenttIndex == 3 }" @tap="inputSwitch"
					data-index="3">
					<text>{{ currentInputValue[3] }}</text>
				</view>
				<view class="main-plate-word" :class="{ active: currenttIndex == 4 }" @tap="inputSwitch"
					data-index="4">
					<text>{{ currentInputValue[4] }}</text>
				</view>
				<view class="main-plate-word" :class="{ active: currenttIndex == 5 }" @tap="inputSwitch"
					data-index="5">
					<text>{{ currentInputValue[5] }}</text>
				</view>
				<view class="main-plate-word" :class="{ active: currenttIndex == 6 }" @tap="inputSwitch"
					data-index="6">
					<text>{{ currentInputValue[6] }}</text>
				</view>
				<view class="main-plate-word" :class="{ active: currenttIndex == 7 }" @tap="inputSwitch"
					v-if="type == 2" data-index="7">
					<text>{{ currentInputValue[7] }}</text>
				</view>
			</view>
			<view class="main-plate-foot">
				<!-- :style="{height:keyboardHeight}" -->
				<view class="main-plate-keyboard" >
					<view id="keyboard">
						<block v-if="inputType == 1">
							<view hover-class="hover" class="main-plate-key" v-for="el of provincesText" :key="el"
								:data-value="el" @tap="chooseKey">{{ el }}</view>
						</block>
						<block v-if="inputType == 1">
							<text class="main-plate-key fill-block"></text>
							<text class="main-plate-key fill-block"></text>
						</block>
						<block v-if="inputType >= 3">
							<view hover-class="hover" class="main-plate-key" v-for="el of numberText" :key="el"
								:data-value="el" @tap="chooseKey">{{ el }}</view>
						</block>
						<block v-if="inputType >= 2">
							<view hover-class="hover" class="main-plate-key" v-for="el of wordText" :key="el"
								:data-value="el" @tap="chooseKey">{{ el }}</view>
						</block>
						<block v-if="inputType == 3">
							<text v-for="el of fillBlock" :key="el.num" class="main-plate-key fill-block"></text>
						</block>
						<block v-if="inputType == 4">
							<view hover-class="hover" class="main-plate-key" v-for="el of lastWordText" :key="el"
								:data-value="el" @tap="chooseKey">{{ el }}</view>
						</block>
						<text v-if="inputType == 4" class="main-plate-key fill-block"></text>
					</view>
				</view>
				<view class="main-plate-btn-group">
					<view>
						<button class="main-plate-btn main-plate-btn--cancel" @tap="$emit('close')">取消</button>
					</view>
					<view>
						<button class="main-plate-btn main-plate-btn--delete" @tap="deleteKey">删除</button>
						<button class="main-plate-btn main-plate-btn--submit" @tap="exportPlate">确定</button>
					</view>
				</view>
			</view>
		</view>
	</view>
</template>
<script>
	export default {
		name: 'uni-plate-input',
		data() {
			return {
				type: 1, //车牌类型
				currenttIndex: 0, //当前编辑的输入框
				currentInputValue: ['', '', '', '', '', '', ''],
				fillBlock: [{
					num: 11
				}, {
					num: 12
				}, {
					num: 13
				}, {
					num: 14
				}, {
					num: 15
				}, {
					num: 16
				}], 
				keyboardHeightInit: false,
				keyboardHeight: 'auto',
				provincesText: [
					'京','冀','沪','津','晋','蒙','辽','吉',
					'黑','苏','浙','皖','闽','赣','鲁','豫',
					'鄂','湘','桂','琼','渝','川','贵','云',
					'粤','藏','陕','甘','青','宁','新'
				],
				numberText: ['1', '2', '3', '4', '5', '6', '7', '8', '9', '0'],
				wordText: ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'L', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U',
					'V', 'W', 'X', 'Y', 'Z'
				],
				lastWordText: ['港', '澳','军', '警' , '学', '领']
			};
		},
		props: {
			plate: {
				type: String
			}
		},
		computed: {
			inputType() {
				switch (this.currenttIndex) {
					case 0:
						return 1;
						break;
					case 1:
						return 2;
						break;
					case 2:
						return 3;
						break;
					case 3:
						return 3;
						break;
					case 4:
						return 3;
						break;
					case 5:
						return 3;
						break;
					case 6:
						return this.type == 2 ? 3 : 4;
						break;
					case 7:
						return 4;
						break;
					default:
						return 1;
						break;
				}
			}
		},
		watch: {
			currenttIndex: function(n, o) {
				if (!this.keyboardHeightInit) return
				this.$nextTick(() => {
					this.changeKeyboardHeight()
				})
			}
		},
		methods: {
			inputSwitch(e) {
				const {
					index
				} = e.currentTarget.dataset;
				this.currenttIndex = parseInt(index);
			},
			Changetype(e) {
				const {
					value
				} = e.detail;
				this.type = parseInt(value)
				this.currenttIndex = 0
				if (value == 1) {
					this.currentInputValue = ['', '', '', '', '', '', '']
				} else {
					this.currentInputValue = ['', '', '', '', '', '', '', '']
				}
			},
			chooseKey(e) {
				const {
					value
				} = e.currentTarget.dataset;
				this.$set(this.currentInputValue, this.currenttIndex, value);
				if (this.type == 1 && this.currenttIndex < 6) {
					this.currenttIndex++
				}
				if (this.type == 2 && this.currenttIndex < 7) {
					this.currenttIndex++
				}
			},
			deleteKey() {
				this.$set(this.currentInputValue, this.currenttIndex, '')
				if (this.currenttIndex != 0) this.currenttIndex--
			},
			exportPlate() {
				const plate = this.currentInputValue.join('')
				let err = false
				if (this.type === 1 && plate.length != 7) {
					err = true
				} else if (this.type === 2 && plate.length != 8) {
					err = true
				}
				if (err) return uni.showToast({
					title: '请输入完整的车牌号码!',
					icon: 'none'
				})
				this.$emit('export', plate)
			},
			changeKeyboardHeight() {
				const that = this
				const query = uni.createSelectorQuery().in(this);
				query.select('#keyboard').boundingClientRect();
				query.exec(function(res) {
					if (res && res[0]) {
						that.keyboardHeight = res[0].height + uni.upx2px(30) + 'px'
						that.keyboardHeightInit = true
					}
				});
			}
		},
		mounted() {
			const plateKey = this.plate.split('')
			if (plateKey.length === 7) {
				this.type = 1
			} else if (plateKey.length === 8) {
				this.type = 2
			}
			if (plateKey.length === 7 || plateKey.length === 8) {
				this.currentInputValue = plateKey
				this.currenttIndex = plateKey.length - 1
			}
			setTimeout(() => { //在动画结束之后才开始获取
				this.$nextTick(() => {
					this.changeKeyboardHeight()
				})
			}, 600);
		}
	};
</script>
<style scoped lang="scss">
	@import './uni-plate-input';
</style>