<template>
	<MkContainer
		:naked="widgetProps.transparent"
		:show-header="widgetProps.showHeader"
		class="mkw-rss-ticker"
	>
		<template #header><i class="ph-rss ph-bold ph-lg"></i>RSS</template>
		<template #func
			><button class="_button" @click="configure">
				<i class="ph-gear-six ph-bold ph-lg"></i></button
		></template>

		<div class="ekmkgxbk">
			<MkLoading v-if="fetching" />
			<div v-else class="feed">
				<transition name="change" mode="default">
					<MarqueeText
						:key="key"
						:duration="widgetProps.duration"
						:reverse="widgetProps.reverse"
					>
						<span v-for="item in items" class="item">
							<a
								class="link"
								:href="item.link"
								rel="nofollow noopener"
								target="_blank"
								:title="item.title"
								>{{ item.title }}</a
							><span class="divider"></span>
						</span>
					</MarqueeText>
				</transition>
			</div>
		</div>
	</MkContainer>
</template>

<script lang="ts" setup>
import { onMounted, onUnmounted, ref, watch } from "vue";
import type { Widget, WidgetComponentExpose } from "./widget";
import {
	WidgetComponentEmits,
	WidgetComponentProps,
	useWidgetPropsManager,
} from "./widget";
import MarqueeText from "@/components/MkMarquee.vue";
import type { GetFormResultType } from "@/scripts/form";
import * as os from "@/os";
import MkContainer from "@/components/MkContainer.vue";
import { useInterval } from "@/scripts/use-interval";
import { shuffle } from "@/scripts/shuffle";

const name = "rssTicker";

const widgetPropsDef = {
	url: {
		type: "string" as const,
		default: "http://feeds.afpbb.com/rss/afpbb/afpbbnews",
	},
	shuffle: {
		type: "boolean" as const,
		default: true,
	},
	refreshIntervalSec: {
		type: "number" as const,
		default: 60,
	},
	duration: {
		type: "range" as const,
		default: 70,
		step: 1,
		min: 5,
		max: 200,
	},
	reverse: {
		type: "boolean" as const,
		default: false,
	},
	showHeader: {
		type: "boolean" as const,
		default: false,
	},
	transparent: {
		type: "boolean" as const,
		default: false,
	},
};

type WidgetProps = GetFormResultType<typeof widgetPropsDef>;

// 現時点ではvueの制限によりimportしたtypeをジェネリックに渡せない
// const props = defineProps<WidgetComponentProps<WidgetProps>>();
// const emit = defineEmits<WidgetComponentEmits<WidgetProps>>();
const props = defineProps<{ widget?: Widget<WidgetProps> }>();
const emit = defineEmits<{ (ev: "updateProps", props: WidgetProps) }>();

const { widgetProps, configure } = useWidgetPropsManager(
	name,
	widgetPropsDef,
	props,
	emit,
);

const items = ref([]);
const fetching = ref(true);
let key = $ref(0);

const tick = () => {
	fetch(`/api/fetch-rss?url=${widgetProps.url}`, {}).then((res) => {
		res.json().then((feed) => {
			if (widgetProps.shuffle) {
				shuffle(feed.items);
			}
			items.value = feed.items;
			fetching.value = false;
			key++;
		});
	});
};

watch(() => widgetProps.url, tick);

useInterval(tick, Math.max(10000, widgetProps.refreshIntervalSec * 1000), {
	immediate: true,
	afterMounted: true,
});

defineExpose<WidgetComponentExpose>({
	name,
	configure,
	id: props.widget ? props.widget.id : null,
});
</script>

<style lang="scss" scoped>
.change-enter-active,
.change-leave-active {
	position: absolute;
	top: 0;
	transition: all 1s ease;
}
.change-enter-from {
	opacity: 0;
	transform: translateY(-100%);
}
.change-leave-to {
	opacity: 0;
	transform: translateY(100%);
}

.ekmkgxbk {
	> .feed {
		--height: 42px;
		padding: 0;
		font-size: 0.9em;
		line-height: var(--height);
		height: var(--height);
		contain: strict;

		::v-deep(.item) {
			display: inline-flex;
			align-items: center;
			vertical-align: bottom;
			color: var(--fg);

			> .divider {
				display: inline-block;
				width: 0.5px;
				height: 16px;
				margin: 0 1em;
				background: var(--divider);
			}
		}
	}
}
</style>
