import {
	clone,
	errorMsg,
	staticName
} from "@/utils/tools"
export default {
	computed: {
		isAdd() {
			return this.action === 'add'
		},
		isView() {
			return this.action === 'view'
		},
		isEdit() {
			return this.action === 'edit'
		},
		readonly() {
			if (!this.action) return true
			return this.isView
		}
	},
	data() {
		return {
			rowStyle: 'margin-bottom: 10px',
			action: null,
			editData: null,
			canSave: false,
			form: {},
			beforeHooks: [],
			afterHooks: [],
			rules: {}
		}
	},
	onReady() {
		this.$refs.editForm.setRules(
			this.rules
		)
	},
	onLoad({
		action,
		json
	}) {
		this.action = action
		if (action !== 'add' && !json) {
			return uni.navigateBack()
		} else if (json) {
			this.editData = JSON.parse(json)
		}
	},
	created() {
		this.resetForm()
	},
	mounted() {
		this.init()
	},
	methods: {
		init() {
			this.beforeHooks = []
			this.afterHooks = []
			this.setUp && this.setUp()
			this.resetForm()
			this.afterReset && this.afterReset()
			Promise.all(this.beforeHooks.map(f => f(this.action))).then(_ => {
				if (this.loadDataCondition()) {
					uni.showLoading({
						title: '加载数据 ...'
					})
					this.getData().then(resp => {
						const d = this.parseResp(resp)
						if (d) {
							this.form = d
							return Promise.all(this.afterHooks.map(f => f(this.action, resp, d)))
						} else {
							return Promise.reject('获取数据失败')
						}
					}).then(_ => {
						if (!this.readonly) {
							this.canSave = true
						}
					}).catch(err => {
						if (err) {
							errorMsg(err)
						}
						this.canSave = false
					}).finally(_ => {
						uni.hideLoading()
					})
				}
			}).catch(err => {
				errorMsg('初始化失败')
				if (err) {
					console.error(err)
				}
			})
		},
		resetForm() {
			this.canSave = false
			this.form = {}
			if ('defaultForm' in this) {
				this.form = clone(this.defaultForm)
			}
			if ('tableData' in this) {
				this.tableData = []
			}
			if ('uploadFiles' in this) {
				this.uploadFiles = []
			}
		},
		loadDataCondition() {
			return this.isView || this.isEdit
		},
		addBeforeHook(hook) {
			this.beforeHooks.push(hook)
		},
		addAfterHook(hook) {
			this.afterHooks.push(hook)
		},
		afterReset() {},
		getDataParam() {
			return this.editData.id
		},
		parseResp(resp) {
			return resp.data
		},
		getData() {
			return this.getDataFun()(this.getDataParam())
		},
		getDataFun() {
			return Promise.resolve({})
		},
		staticName,
		back(refresh = false) {
			console.log(this, this.listUrl, refresh);
			if (this.listUrl) {
				const url = `${this.listUrl}?refresh=${refresh}`
				uni.redirectTo({
					url
				})
			} else {
				uni.navigateBack()
			}
		},
		getSaveFun() {

		},
		getLocalData() {
			return {
				...this.form
			}
		},
		saveSuccessful(resp) {
			return resp.code === 200
		},
		beforeSaveCheck() {
			return Promise.resolve()
		},
		save() {
			console.log(this.$refs.editForm.validate);
			this.beforeSaveCheck().then(_ => {
				this.$refs.editForm.validate().then(res => {
					this.getSaveFun()(this.getLocalData()).then(resp => {
						console.log('save callback', resp);
						if (this.saveSuccessful(resp)) {
							this.back(true)
						} else {
							errorMsg('操作失败')
						}
					})
				})
			}).catch(err => {
				if(err) {
					errorMsg(err)
				}
			})
		}
	},
}