<template>
	<view class='wrapper'>
		<view class='toolbar' @tap="format">
			<view :class="'iconfont icon-format-header-1 ' + (formats.header === 1 ? 'ql-active' : '')" data-name="header" :data-value="1"></view>
			<view :class="'iconfont icon-format-header-2 ' + (formats.header === 2 ? 'ql-active' : '')" data-name="header" :data-value="2"></view>
			<view :class="'iconfont icon-format-header-3 ' + (formats.header === 3 ? 'ql-active' : '')" data-name="header" :data-value="3"></view>
			<view :class="'iconfont icon-format-header-4 ' + (formats.header === 4 ? 'ql-active' : '')" data-name="header" :data-value="4"></view>
			<view :class="'iconfont icon-format-header-5 ' + (formats.header === 5 ? 'ql-active' : '')" data-name="header" :data-value="5"></view>
			<view :class="'iconfont icon-format-header-6 ' + (formats.header === 6 ? 'ql-active' : '')" data-name="header" :data-value="6"></view>
			<view :class="formats.bold ? 'ql-active' : ''" class="iconfont icon-zitijiacu" data-name="bold"></view>
			<view :class="formats.italic ? 'ql-active' : ''" class="iconfont icon-zitixieti" data-name="italic"></view>
			<view :class="formats.underline ? 'ql-active' : ''" class="iconfont icon-zitixiahuaxian" data-name="underline"></view>
			<view :class="formats.strike ? 'ql-active' : ''" class="iconfont icon-zitishanchuxian" data-name="strike"></view>
			<view :class="formats.align === 'left' ? 'ql-active' : ''" class="iconfont icon-zuoduiqi" data-name="align" data-value="left"></view>
			<view :class="formats.align === 'center' ? 'ql-active' : ''" class="iconfont icon-juzhongduiqi" data-name="align" data-value="center"></view>
			<view :class="formats.align === 'right' ? 'ql-active' : ''" class="iconfont icon-youduiqi" data-name="align" data-value="right"></view>
			<view :class="formats.align === 'justify' ? 'ql-active' : ''" class="iconfont icon-zuoyouduiqi" data-name="align" data-value="justify"></view>
			<view :class="formats.lineHeight ? 'ql-active' : ''" class="iconfont icon-line-height" data-name="lineHeight" data-value="2"></view>
			<view :class="formats.letterSpacing ? 'ql-active' : ''" class="iconfont icon-Character-Spacing" data-name="letterSpacing" data-value="2em"></view>
			<view :class="formats.marginTop ? 'ql-active' : ''" class="iconfont icon-722bianjiqi_duanqianju" data-name="marginTop" data-value="20px"></view>
			<view :class="formats.previewarginBottom ? 'ql-active' : ''" class="iconfont icon-723bianjiqi_duanhouju" data-name="marginBottom" data-value="20px"></view>
			<view class="iconfont icon-clearedformat" @tap="removeFormat"></view>
			<view :class="formats.fontFamily ? 'ql-active' : ''" class="iconfont icon-font" data-name="fontFamily" data-value="Pacifico"></view>
			<view :class="formats.fontSize === '24px' ? 'ql-active' : ''" class="iconfont icon-fontsize" data-name="fontSize" data-value="24px"></view>

			<view :class="formats.color === '#0000ff' ? 'ql-active' : ''" class="iconfont icon-text_color" data-name="color" data-value="#0000ff"></view>
			<view :class="formats.backgroundColor === '#00ff00' ? 'ql-active' : ''" class="iconfont icon-fontbgcolor" data-name="backgroundColor" data-value="#00ff00"></view>

			<view class="iconfont icon-date" @tap="insertDate"></view>
			<view class="iconfont icon--checklist" data-name="list" data-value="check"></view>
			<view :class="formats.list === 'ordered' ? 'ql-active' : ''" class="iconfont icon-youxupailie" data-name="list" data-value="ordered"></view>
			<view :class="formats.list === 'bullet' ? 'ql-active' : ''" class="iconfont icon-wuxupailie" data-name="list" data-value="bullet"></view>
			<view class="iconfont icon-undo" @tap="undo"></view>
			<view class="iconfont icon-redo" @tap="redo"></view>

			<view class="iconfont icon-outdent" data-name="indent" data-value="-1"></view>
			<view class="iconfont icon-indent" data-name="indent" data-value="+1"></view>
			<view class="iconfont icon-fengexian" @tap="insertDivider"></view>
			<view class="iconfont icon-charutupian" @tap="insertImage"></view>
			<view :class="formats.header === 1 ? 'ql-active' : ''" class="iconfont icon-format-header-1" data-name="header" :data-value="1"></view>
			<view :class="formats.script === 'sub' ? 'ql-active' : ''" class="iconfont icon-zitixiabiao" data-name="script" data-value="sub"></view>
			<view :class="formats.script === 'super' ? 'ql-active' : ''" class="iconfont icon-zitishangbiao" data-name="script" data-value="super"></view>
			<view class="iconfont icon-shanchu" @tap="clear"></view>
			<view :class="formats.direction === 'rtl' ? 'ql-active' : ''" class="iconfont icon-direction-rtl" data-name="direction" data-value="rtl"></view>
		</view>

		<view class="editor-wrapper">
			<editor :id="ids" class="ql-container" :placeholder="mplaceholder" showImgSize showImgToolbar showImgResize @statuschange="onStatusChange" :read-only="readOnly" @ready="onEditorReady" @blur="getContant" @input="onInput">
			</editor>
			<view class="hide">
				<textarea type="text" :value="contents"></textarea>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		name: "mEditor",
		props: {
			modelValue: String,
			value: String,
			mplaceholder: {
				default: ''
			},
			ids: {
				type: String,
				default: 'editor'
			},
			name: String
		},
		data() {
			return {
				formats: {},
				placeholder: this.placeholder,
				readOnly: false,
				contents: '',
				editorCtx: '',
				hasChange: false
			};
		},
		mounted() {
			this.onEditorReady()
			// 将数据渲染到富文本内
			this.timer = setInterval(() => {
				if (this.value) {
					clearInterval(this.timer)
					this.editorCtx.setContents({
						html: this.value,
						success(res) {}
					})
				}
			}, 100)
		},
		watch: {
			modelValue(val) {
				if (!this.hasChange) {
					this.$nextTick(() => {
						this.editorCtx.setContents({
							html: val
						})
					});
				}
			}
		},
		methods: {
			/**
			 * 输入时触发
			 * @param {Object} event
			 */
			onInput(event) {
				let value = event.detail.html
			},
			getContant(e) {
				let value = e.detail.html
				this.contents = value
				// TODO 兼容 vue2
				this.$emit('input', value);
				// TODO　兼容　vue3
				this.$emit('update:modelValue', value)
			},
			readOnlyChange() {
				this.readOnly = !this.readOnly
			},
			onEditorReady() {
				var ids = '#' + this.ids;
				uni.createSelectorQuery().select(ids).context((res) => {
					this.editorCtx = res.context
					this.editorCtx.setContents({
						html: this.modelValue
					})

				}).exec()
			},
			undo() {
				this.editorCtx.undo()
			},
			redo() {
				this.editorCtx.redo()
			},
			format(e) {
				let {
					name,
					value
				} = e.target.dataset
				if (!name) return
				this.editorCtx.format(name, value)

			},
			onStatusChange(e) {
				const formats = e.detail
				this.formats = formats
			},
			insertDivider() {
				this.editorCtx.insertDivider({
					success: function() {
						console.log('insert divider success')
					}
				})
			},
			clear() {
				this.editorCtx.clear({
					success: function(res) {
						console.log("clear success")
					}
				})
			},
			removeFormat() {
				this.editorCtx.removeFormat()
			},
			insertDate() {
				const date = new Date()
				const formatDate = `${date.getFullYear()}/${date.getMonth() + 1}/${date.getDate()}`
				this.editorCtx.insertText({
					text: formatDate
				})
			},
			insertImage() {
				function cropImg(file) {
					return new Promise((resolve, reject) => {
						let ext
						let filePathProcessed = file.path // 处理结果
						// #ifdef H5
						ext = file.name.split('.').pop()
						resolve({
							path: filePathProcessed,
							ext,
							fileType: file.fileType
						})
						// #endif
						// #ifndef H5
						uni.getImageInfo({
							src: file.path,
							success(info) {
								ext = info.type.toLowerCase()
								resolve({
									path: filePathProcessed,
									ext,
									fileType: file.fileType
								})
							},
							fail(err) {
								reject(new Error(err.errMsg || '未能获取图片类型'))
							}
						})
						// #endif
					})
				}
				// 开始上传
				uniCloud.chooseAndUploadFile({
					type: 'image',
					count: 1,
					onChooseFile(res) {
						const processAll = []
						for (let i = 0; i < res.tempFiles.length; i++) {
							processAll.push(cropImg(res.tempFiles[i]))
						}
						return Promise.all(processAll).then((fileList) => {
							let result = {
								tempFilePaths: []
							}
							result.tempFiles = fileList.map((fileItem, index) => {
								result.tempFilePaths.push(fileItem.path)
								return {
									path: fileItem.path,
									cloudPath: '' + Date.now() + index + '.' + fileItem.ext, // 云端路径，这里随便生成了一个
									fileType: fileItem.fileType
								}
							})
							return result
						})
					}
				}).then(res => {
					console.log('上传的图片', res)
					this.editorCtx.insertImage({
						src: res.tempFiles[0].url,
						alt: '图像',
						success: function() {
							console.log('insert image success')
						}
					})
				})
			}
		}
	}
</script>

<style>
	@import "./editor-icon.css";

	.page-body {
		height: calc(100vh - var(--window-top) - var(--status-bar-height));
	}

	.hide {
		display: none;
	}

	.wrapper {
		height: 100%;
	}

	.editor-wrapper {
		/* height: calc(100vh - var(--window-top) - var(--status-bar-height) - 140px); */
		background: #fff;
	}

	.iconfont {
		display: inline-block;
		padding: 8px 8px;
		width: 24px;
		height: 24px;
		cursor: pointer;
		font-size: 20px;
	}

	.toolbar {
		box-sizing: border-box;
		border-bottom: 0;
		font-family: 'Helvetica Neue', 'Helvetica', 'Arial', sans-serif;
	}


	.ql-container {
		box-sizing: border-box;
		padding: 12px 15px;
		width: 100%;
		height: 300px !important;
		margin-top: 20px;
		font-size: 16px;
		line-height: 1.5;
		border: 1px solid #ccc;
	}

	.ql-active {
		color: #06c;
	}

	.uni-app--showleftwindow .uni-container .uni-forms {
		max-width: 100%;
	}
</style>
