<template>
	<div>
		<h3>
			<span class="icon is-grey">
				<icon icon="align-left"/>
			</span>
			{{ $t('task.attributes.description') }}
			<transition name="fade">
				<span class="is-small is-inline-flex" v-if="loading && saving">
					<span class="loader is-inline-block mr-2"></span>
					{{ $t('misc.saving') }}
				</span>
				<span class="is-small has-text-success" v-else-if="!loading && saved">
					<icon icon="check"/>
					{{ $t('misc.saved') }}
				</span>
			</transition>
		</h3>
		<editor
			:is-edit-enabled="canWrite"
			:upload-callback="attachmentUpload"
			:upload-enabled="true"
			@change="save"
			:placeholder="$t('task.description.placeholder')"
			:empty-text="$t('task.description.empty')"
			:show-save="true"
			v-model="task.description"
		/>
	</div>
</template>

<script setup lang="ts">
import {ref,computed, watch} from 'vue'
import {useStore} from 'vuex'

import Editor from '@/components/input/AsyncEditor'

import TaskModel from '@/models/task'


const props = defineProps({
	modelValue: {
		type: TaskModel,
		required: true,
	},
	attachmentUpload: {
		required: true,
	},
	canWrite: {
		required: true,
	},
})

const emit = defineEmits(['update:modelValue'])

const task = ref<TaskModel>({description: ''})
const saved = ref(false)

// Since loading is global state, this variable ensures we're only showing the saving icon when saving the description.
const saving = ref(false)

const store = useStore()
const loading = computed(() => store.state.loading)

watch(
	() => props.modelValue,
	(value) => {
		task.value = value
	},
	{immediate: true},
)

async function save() {
	saving.value = true

	try {
		// FIXME: don't update state from internal.
		task.value = await store.dispatch('tasks/update', task.value)
		emit('update:modelValue', task.value)

		saved.value = true
		setTimeout(() => {
			saved.value = false
		}, 2000)
	} finally {
		saving.value = false
	}
}
</script>

