'use strict';

const db = require('../../database');
const activitypub = require('../../activitypub');
const analytics = require('../../analytics');

const federationController = module.exports;

federationController.general = function (req, res) {
	res.render(`admin/federation/general`, {
		title: '[[admin/menu:federation/general]]',
	});
};

federationController.content = function (req, res) {
	res.render(`admin/federation/content`, {
		title: '[[admin/menu:federation/content]]',
	});
};

federationController.rules = async function (req, res) {
	const rules = await activitypub.rules.list();

	res.render(`admin/federation/rules`, {
		title: '[[admin/menu:federation/rules]]',
		rules,
		hideSave: true,
	});
};

federationController.relays = async function (req, res) {
	const relays = await activitypub.relays.list();

	res.render(`admin/federation/relays`, {
		title: '[[admin/menu:federation/relays]]',
		relays,
		hideSave: true,
	});
};

federationController.pruning = function (req, res) {
	res.render(`admin/federation/pruning`, {
		title: '[[admin/menu:federation/pruning]]',
	});
};

federationController.safety = async function (req, res) {
	const instanceCount = await activitypub.instances.getCount();
	const blocklists = await activitypub.blocklists.list();

	res.render(`admin/federation/safety`, {
		title: '[[admin/menu:federation/safety]]',
		blocklists,
		instanceCount,
	});
};

federationController.analytics = async function (req, res) {
	const instances = await activitypub.instances.list();
	instances.sort();

	let { host, term } = req.query;
	if (!instances.includes(host)) {
		host = undefined;
	}
	let method = 'getHourlyStatsForSet';
	let count = 24;
	if (term === 'daily') {
		method = 'getDailyStatsForSet';
		count = 30;
	}
	const receivedSet = host ? `activities:byHost:${host}` : 'activities';
	const receivedErrSet = host ? `ap.inErr:byHost:${host}` : 'ap.inErr';
	const sentSet = host ? `ap.out:byHost:${host}` : 'ap.out';
	const received = await analytics[method](receivedSet, Date.now(), count);
	const receivedErr = await analytics[method](receivedErrSet, Date.now(), count);
	const sent = await analytics[method](sentSet, Date.now(), count);

	res.render('admin/federation/analytics', {
		title: '[[admin/menu:federation/analytics]]',
		instances,
		received,
		receivedErr,
		sent,
		hideSave: 1,
	});
};

federationController.errors = async function (req, res) {
	const ids = await db.getSortedSetRevRangeByScore('ap.errors', 0, -1, Date.now(), '-inf');
	const errorObj = await db.getObjects(ids.map(id => `ap.errors:${id}`));
	const errors = ids.map((id, idx) => {
		let { body, stack } = errorObj[idx];
		let hostname = 'Invalid hostname';
		try {
			body = JSON.stringify(JSON.parse(body), null, 4);
			({ hostname } = new URL(id));
		} catch (e) {
			// noop
		}

		return { id, body, stack, hostname };
	});

	res.render('admin/federation/errors', {
		title: '[[admin/menu:federation/errors]]',
		errors,
	});
};