<template>
<MkStickyContainer>
	<template #header><MkPageHeader :actions="headerActions" :tabs="headerTabs"/></template>
	<MkSpacer :content-max="800">
		<div v-if="$i">
			<div v-if="state == 'waiting'">
				<MkLoading/>
			</div>
			<div v-if="state == 'denied'">
				<p>{{ i18n.ts._auth.denied }}</p>
			</div>
			<div v-else-if="state == 'accepted'" class="accepted">
				<p v-if="callback">{{ i18n.ts._auth.callback }}<MkEllipsis/></p>
				<p v-else>{{ i18n.ts._auth.pleaseGoBack }}</p>
			</div>
			<div v-else>
				<div v-if="_permissions.length > 0">
					<p v-if="name">{{ i18n.t('_auth.permission', { name }) }}</p>
					<p v-else>{{ i18n.ts._auth.permissionAsk }}</p>
					<ul>
						<li v-for="p in _permissions" :key="p">{{ i18n.t(`_permissions.${p}`) }}</li>
					</ul>
				</div>
				<div v-if="name">{{ i18n.t('_auth.shareAccess', { name }) }}</div>
				<div v-else>{{ i18n.ts._auth.shareAccessAsk }}</div>
				<div :class="$style.buttons">
					<MkButton inline @click="deny">{{ i18n.ts.cancel }}</MkButton>
					<MkButton inline primary @click="accept">{{ i18n.ts.accept }}</MkButton>
				</div>
			</div>
		</div>
		<div v-else>
			<p :class="$style.loginMessage">{{ i18n.ts._auth.pleaseLogin }}</p>
			<MkSignin @login="onLogin"/>
		</div>
	</MkSpacer>
</MkStickyContainer>
</template>

<script lang="ts" setup>
import { } from 'vue';
import MkSignin from '@/components/MkSignin.vue';
import MkButton from '@/components/MkButton.vue';
import * as os from '@/os';
import { $i, login } from '@/account';
import { i18n } from '@/i18n';
import { definePageMetadata } from '@/scripts/page-metadata';

const props = defineProps<{
	session: string;
	callback?: string;
	name: string;
	icon: string;
	permission: string; // コンマ区切り
}>();

const _permissions = props.permission ? props.permission.split(',') : [];

let state = $ref<string | null>(null);

async function accept(): Promise<void> {
	state = 'waiting';
	await os.api('miauth/gen-token', {
		session: props.session,
		name: props.name,
		iconUrl: props.icon,
		permission: _permissions,
	});

	state = 'accepted';
	if (props.callback) {
		const cbUrl = new URL(props.callback);
		if (['javascript:', 'file:', 'data:', 'mailto:', 'tel:'].includes(cbUrl.protocol)) throw new Error('invalid url');
		cbUrl.searchParams.set('session', props.session);
		location.href = cbUrl.href;
	}
}

function deny(): void {
	state = 'denied';
}

function onLogin(res): void {
	login(res.i);
}

const headerActions = $computed(() => []);

const headerTabs = $computed(() => []);

definePageMetadata({
	title: 'MiAuth',
	icon: 'ti ti-apps',
});
</script>

<style lang="scss" module>
.buttons {
	margin-top: 16px;
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
}

.loginMessage {
	text-align: center;
	margin: 8px 0 24px;
}
</style>
