import FhcFragment from "../Fragment.js";

let _uuid = {};

export default {
	inheritAttrs: false,
	components: {
		FhcFragment
	},
	inject: [
		'$registerToForm'
	],
	props: {
		bsFeedback: Boolean,
		noAutoClass: Boolean,
		type: String,
		name: String
	},
	data() {
		return {
			valid: undefined,
			feedback: []
		}
	},
	computed: {
		lcType() {
			if (!this.type)
				return 'text';
			return this.type.toLowerCase();
		},
		tag() {
			switch (this.lcType) {
				case 'textarea':
				case 'select':
					return this.lcType;
				case 'datepicker':
					return 'VueDatePicker';
				case 'autocomplete':
					return 'PvAutocomplete';
				default:
					return 'input';
			}
		},
		validationClass() {
			const classes = [];
			if (this.valid)
				classes.push('is-valid');
			else if (this.valid === false)
				classes.push('is-invalid');
			
			if (!this.noAutoClass) {
				let c = this.$attrs.class ? this.$attrs.class.split(' ') : [];
				switch (this.lcType) {
					// TODO(chris): complete list!
					case 'select':
						if (!c.includes('form-select'))
							classes.push('form-select');
						break;
					case 'range':
						if (!c.includes('form-range'))
							classes.push('form-range');
						break;
					case 'radio':
					case 'checkbox':
						// TODO(chris): maybe different handling?
						if (!c.includes('form-check-input') && !c.includes('btn-check'))
							classes.push('form-check-input');
						break;
					case 'autocomplete':
					case 'datepicker':
						classes.push('p-0');
						classes.push('border-0');
					case 'text':
					case 'textarea':
						if (!c.includes('form-control'))
							classes.push('form-control');
						break;
				}
			}

			return classes;
		},
		feedbackClass() {
			if (!this.feedback || this.feedback === true)
				return '';
			if (!this.bsFeedback)
				return {
					'valid-tooltip': this.valid === true,
					'invalid-tooltip': this.valid === false
				};
			return {
				'valid-feedback': this.valid === true,
				'invalid-feedback': this.valid === false
			};
		},
		modelValueCmp: {
			get() {
				return this.$attrs.modelValue;
			},
			set(v) {
				this.$emit('update:modelValue', v);
			}
		},
		idCmp() {
			let uuid = this.$attrs.id;
			if (this.lcType == 'datepicker')
				uuid = this.$attrs.uid;
			if (!uuid && this.$attrs.label)
				uuid = 'fhc-form-input';
			if (!uuid)
				return undefined;
			if (this.lcType == 'datepicker')
				uuid = 'dp-input-' + uuid;
			if (_uuid[uuid] === undefined)
				_uuid[uuid] = 0;
			return uuid + '-' + (_uuid[uuid]++);
		}
	},
	methods: {
		clearValidation() {
			this.valid = undefined;
			this.feedback = [];
		},
		setFeedback(valid, feedback) {
			if (!feedback)
				feedback = [];
			if (!Array.isArray(feedback))
				feedback = [feedback];
			this.valid = valid;
			this.feedback = feedback;
		},
		_loadComponents() {
			if (this.tag == 'VueDatePicker' && !this._.components.VueDatePicker) {
				this._.components.VueDatePicker = Vue.defineAsyncComponent(() => import("../vueDatepicker.js.php"));
			} else if (this.tag == 'PvAutocomplete' && !this._.components.PvAutocomplete) {
				this._.components.PvAutocomplete = Vue.defineAsyncComponent(() => import(FHC_JS_DATA_STORAGE_OBJECT.app_root + FHC_JS_DATA_STORAGE_OBJECT.ci_router + "/public/js/components/primevue/autocomplete/autocomplete.esm.min.js"));;
			}
		}
	},
	beforeMount() {
		this._loadComponents();
	},
	beforeUpdate() {
		this._loadComponents();
	},
	mounted() {
		if (this.$registerToForm)
			this.$registerToForm(this);
		// TODO(chris): wrap check in div?
	},
	template: `
	<component :is="bsFeedback ? 'FhcFragment' : 'div'" class="position-relative">
		<label v-if="$attrs.label && lcType != 'radio' && lcType != 'checkbox'" :for="idCmp">{{$attrs.label}}</label>
		<input v-if="tag == 'input'" :type="lcType" v-model="modelValueCmp" v-bind="$attrs" :id="idCmp" :name="name" :class="validationClass" :modelValue="undefined" @input="clearValidation(); $emit('input', $event)">
		<textarea v-else-if="tag == 'textarea'" v-model="modelValueCmp" v-bind="$attrs" :id="idCmp" :name="name" :class="validationClass" :modelValue="undefined" @input="clearValidation(); $emit('input', $event)"></textarea>
		<select v-else-if="tag == 'select'" v-model="modelValueCmp" v-bind="$attrs" :id="idCmp" :name="name" :class="validationClass" :modelValue="undefined" @input="clearValidation(); $emit('input', $event)">
			<slot></slot>
		</select>
		<component
			v-else-if="tag == 'VueDatePicker'"
			:is="tag"
			:type="type"
			v-model="modelValueCmp"
			v-bind="$attrs"
			:uid="idCmp.substr(9)"
			:name="name"
			:class="validationClass"
			:input-class-name="[...Object.entries({'form-control': !noAutoClass, 'is-valid': valid === true, 'is-invalid': valid === false}).reduce((a,[k,v]) => {if(v) a.push(k);return a}, []), ...($attrs['input-class-name'] ? $attrs['input-class-name'].split(' ') : [])].join(' ')"
			@update:model-value="clearValidation"
			>
			<slot></slot>
		</component>
		<component
			v-else-if="tag == 'PvAutocomplete'"
			:is="tag"
			:type="type"
			v-model="modelValueCmp"
			v-bind="$attrs"
			:id="idCmp"
			:name="name"
			:class="validationClass"
			:input-class="[...Object.entries({'form-control': !noAutoClass, 'is-valid': valid === true, 'is-invalid': valid === false}).reduce((a,[k,v]) => {if(v) a.push(k);return a}, []), ...($attrs['input-class'] ? $attrs['input-class'].split(' ') : [])].join(' ')"
			@update:model-value="clearValidation"
			>
			<slot></slot>
		</component>
		<component
			v-else
			:is="tag"
			:type="type"
			v-model="modelValueCmp"
			v-bind="$attrs"
			:id="idCmp"
			:name="name"
			:class="validationClass"
			@update:model-value="clearValidation"
			>
			<slot></slot>
		</component>
		<div v-if="valid !== undefined" :class="feedbackClass">
			<template v-for="(msg, i) in feedback" :key="i">
				<hr v-if="i" class="m-0">
				{{msg}}
			</template>
		</div>
		<label v-if="$attrs.label && (lcType == 'radio' || lcType == 'checkbox')" :for="idCmp" :class="!noAutoClass && 'form-check-label'">{{$attrs.label}}</label>
	</component>
	`
}