<!--
SPDX-FileCopyrightText: 2022 Carl Schwan <carl@carlschwan.eu>
SPDX-Licence-Identifier: AGPL-3.0-or-later
-->

<template>
	<NcSettingsSection :title="t('news', 'News')"
		class="news-settings"
		doc-url="https://nextcloud.github.io/news/admin/">
		<NcCheckboxRadioSwitch type="switch"
			:checked.sync="useCronUpdates"
			@update:checked="update('useCronUpdates', useCronUpdates)">
			{{ t('news', 'Use system cron for updates') }}
		</NcCheckboxRadioSwitch>
		<p><em>{{ t('news', 'Disable this if you use a custom updater.') }}</em></p>

		<NcTextField :value.sync="autoPurgeMinimumInterval"
			:label="t('news', 'Purge interval')"
			:label-visible="true"
			@update:value="update('autoPurgeMinimumInterval', autoPurgeMinimumInterval)" />
		<p><em>{{ t('news', 'Minimum amount of seconds after deleted feeds and folders are removed from the database; values below 60 seconds are ignored.') }}</em></p>

		<NcTextField :value.sync="autoPurgeCount"
			:label="t('news', 'Maximum read count per feed')"
			:label-visible="true"
			@update:value="update('autoPurgeCount', autoPurgeCount)" />
		<p><em>{{ t('news', `Defines the maximum amount of articles that can be read per feed which won't be deleted by the cleanup job; if old articles reappear after being read, increase this value; negative values such as -1 will turn this feature off.`) }}</em></p>

		<NcTextField :value.sync="maxRedirects"
			:label="t('news', 'Maximum redirects')"
			:label-visible="true"
			@update:value="update('maxRedirects', maxRedirects)" />
		<p><em>{{ t('news', 'How many redirects the feed fetcher should follow.') }}</em></p>

		<NcTextField :value.sync="feedFetcherTimeout"
			:label="t('news', 'Feed fetcher timeout')"
			:label-visible="true"
			@update:value="update('feedFetcherTimeout', feedFetcherTimeout)" />
		<p><em>{{ t('news', 'Maximum number of seconds to wait for an RSS or Atom feed to load; if it takes longer the update will be aborted.') }}</em></p>

		<NcTextField :value.sync="exploreUrl"
			:label="t('news', 'Explore Service URL')"
			:label-visible="true"
			@update:value="update('exploreUrl', exploreUrl)" />
		<p><em>{{ t('news', 'If given, this service\'s URL will be queried for displaying the feeds in the explore feed section. To fall back to the built in explore service, leave this input empty.') }}</em></p>

		<NcTextField :value.sync="updateInterval"
			:label="t('news', 'Update interval')"
			:label-visible="true"
			@update:value="update('updateInterval', updateInterval)" />
		<p><em>{{ t('news', 'Interval in seconds in which the feeds will be updated.') }}</em></p>
	</NcSettingsSection>
</template>

<script>
import NcCheckboxRadioSwitch from '@nextcloud/vue/dist/Components/NcCheckboxRadioSwitch.js'
import NcSettingsSection from '@nextcloud/vue/dist/Components/NcSettingsSection.js'
import NcTextField from '@nextcloud/vue/dist/Components/NcTextField.js'
import { loadState } from '@nextcloud/initial-state'
import { showError, showSuccess } from '@nextcloud/dialogs'
import axios from '@nextcloud/axios'
import { generateOcsUrl } from '@nextcloud/router'
import confirmPassword from '@nextcloud/password-confirmation'

/**
 *
 * @param func
 * @param wait
 */
function debounce(func, wait) {
	let timeout

	return function executedFunction(...args) {
		clearTimeout(timeout)
		timeout = setTimeout(() => { func.apply(this, args) }, wait)
	}
}

const successMessage = debounce(() => showSuccess(t('news', 'Successfully updated news configuration')), 500)

export default {
	name: 'AdminSettings',
	components: {
		NcCheckboxRadioSwitch,
		NcSettingsSection,
		NcTextField,
	},
	data() {
		return {
			useCronUpdates: loadState('news', 'useCronUpdates') === '1',
			autoPurgeMinimumInterval: loadState('news', 'autoPurgeMinimumInterval'),
			autoPurgeCount: loadState('news', 'autoPurgeCount'),
			maxRedirects: loadState('news', 'maxRedirects'),
			feedFetcherTimeout: loadState('news', 'feedFetcherTimeout'),
			exploreUrl: loadState('news', 'exploreUrl'),
			updateInterval: loadState('news', 'updateInterval'),
		}
	},
	methods: {
		async update(key, value) {
			await confirmPassword()
			const url = generateOcsUrl('/apps/provisioning_api/api/v1/config/apps/{appId}/{key}', {
				appId: 'news',
				key,
			})
			if (key === 'useCronUpdates') {
				value = value ? '1' : '0'
			}
			try {
				const { data } = await axios.post(url, {
					value,
				})
				this.handleResponse({
					status: data.ocs?.meta?.status,
				})
			} catch (e) {
				this.handleResponse({
					errorMessage: t('news', 'Unable to update news config'),
					error: e,
				})
			}
		},
		async handleResponse({ status, errorMessage, error }) {
			if (status !== 'ok') {
				showError(errorMessage)
				console.error(errorMessage, error)
			} else {
				successMessage()
			}
		},
	},
}
</script>

<style lang="scss" scoped>
.news-settings {
	p {
		max-width: 700px;
		margin-top: .25rem;
		margin-bottom: 1rem;
	}

	.input-field {
		max-width: 350px;
	}
}
</style>
