<template>
<div class="vjoppmmu">
	<template v-if="edit">
		<header>
			<MkSelect v-model="widgetAdderSelected" style="margin-bottom: var(--margin)" class="mk-widget-select">
				<template #label>{{ i18n.ts.selectWidget }}</template>
				<option v-for="widget in widgetDefs" :key="widget" :value="widget">{{ i18n.t(`_widgets.${widget}`) }}</option>
			</MkSelect>
			<MkButton inline primary class="mk-widget-add" @click="addWidget"><i class="ti ti-plus"></i> {{ i18n.ts.add }}</MkButton>
			<MkButton inline @click="$emit('exit')">{{ i18n.ts.close }}</MkButton>
		</header>
		<Sortable
			:list="props.widgets"
			item-key="id"
			:options="{ handle: '.handle', animation: 150 }"
			@end="onSorted"
		>
			<template #item="{element}">
				<div class="customize-container">
					<button class="config _button" @click.prevent.stop="configWidget(element.id)"><i class="ti ti-settings"></i></button>
					<button class="remove _button" @click.prevent.stop="removeWidget(element)"><i class="ti ti-x"></i></button>
					<div class="handle">
						<component :is="`mkw-${element.name}`" :ref="el => widgetRefs[element.id] = el" class="widget" :widget="element" @updateProps="updateWidget(element.id, $event)"/>
					</div>
				</div>
			</template>
		</Sortable>
	</template>
	<component :is="`mkw-${widget.name}`" v-for="widget in widgets" v-else :key="widget.id" :ref="el => widgetRefs[widget.id] = el" class="widget" :widget="widget" @updateProps="updateWidget(widget.id, $event)" @contextmenu.stop="onContextmenu(widget, $event)"/>
</div>
</template>

<script lang="ts" setup>
import { defineAsyncComponent, reactive, ref, computed } from 'vue';
import { v4 as uuid } from 'uuid';
import MkSelect from '@/components/form/select.vue';
import MkButton from '@/components/MkButton.vue';
import { widgets as widgetDefs } from '@/widgets';
import * as os from '@/os';
import { i18n } from '@/i18n';
import { deepClone } from '@/scripts/clone';

const Sortable = defineAsyncComponent(() => import('sortablejs-vue3').then(x => x.Sortable));

type Widget = {
	name: string;
	id: string;
	data: Record<string, any>;
};

const props = defineProps<{
	widgets: Widget[];
	edit: boolean;
}>();

const emit = defineEmits<{
	(ev: 'updateWidgets', widgets: Widget[]): void;
	(ev: 'addWidget', widget: Widget): void;
	(ev: 'removeWidget', widget: Widget): void;
	(ev: 'updateWidget', widget: Partial<Widget>): void;
	(ev: 'exit'): void;
}>();

const widgetRefs = {};
const configWidget = (id: string) => {
	widgetRefs[id].configure();
};
const widgetAdderSelected = ref(null);
const addWidget = () => {
	if (widgetAdderSelected.value == null) return;

	emit('addWidget', {
		name: widgetAdderSelected.value,
		id: uuid(),
		data: {},
	});

	widgetAdderSelected.value = null;
};
const removeWidget = (widget) => {
	emit('removeWidget', widget);
};
const updateWidget = (id, data) => {
	emit('updateWidget', { id, data });
};

function onSorted(event) {
	const items = deepClone(props.widgets);
	const item = items.splice(event.oldIndex, 1)[0];
	items.splice(event.newIndex, 0, item);
	emit('updateWidgets', items);
}

function onContextmenu(widget: Widget, ev: MouseEvent) {
	const isLink = (el: HTMLElement) => {
		if (el.tagName === 'A') return true;
		if (el.parentElement) {
			return isLink(el.parentElement);
		}
	};
	if (isLink(ev.target)) return;
	if (['INPUT', 'TEXTAREA', 'IMG', 'VIDEO', 'CANVAS'].includes(ev.target.tagName) || ev.target.attributes['contenteditable']) return;
	if (window.getSelection()?.toString() !== '') return;

	os.contextMenu([{
		type: 'label',
		text: i18n.t(`_widgets.${widget.name}`),
	}, {
		icon: 'ti ti-settings',
		text: i18n.ts.settings,
		action: () => {
			configWidget(widget.id);
		},
	}], ev);
}
</script>

<style lang="scss" scoped>
.vjoppmmu {
	> header {
		margin: 16px 0;

		> * {
			width: 100%;
			padding: 4px;
		}
	}

	> .widget, .customize-container {
		contain: content;
		margin: var(--margin) 0;

		&:first-of-type {
			margin-top: 0;
		}
	}

	.customize-container {
		position: relative;
		cursor: move;

		> .config,
		> .remove {
			position: absolute;
			z-index: 10000;
			top: 8px;
			width: 32px;
			height: 32px;
			color: #fff;
			background: rgba(#000, 0.7);
			border-radius: 4px;
		}

		> .config {
			right: 8px + 8px + 32px;
		}

		> .remove {
			right: 8px;
		}

		> .handle {
			> .widget {
				pointer-events: none;
			}
		}
	}
}
</style>
