gsender

/*
 * Copyright (C) 2021 Sienci Labs Inc.
 *
 * This file is part of gSender.
 *
 * gSender is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, under version 3 of the License.
 *
 * gSender is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with gSender.  If not, see <https://www.gnu.org/licenses/>.
 *
 * Contact for information regarding this program and its license
 * can be sent through gSender@sienci.com or mailed to the main office
 * of Sienci Labs Inc. in Waterloo, Ontario, Canada.
 *
 */

import ensureArray from "ensure-array";
import find from "lodash/find";
import isPlainObject from "lodash/isPlainObject";
import uuid from "uuid";
import settings from "../config/settings";
import {
	ERR_BAD_REQUEST,
	ERR_INTERNAL_SERVER_ERROR,
	ERR_NOT_FOUND,
} from "../constants";
import logger from "../lib/logger";
import config from "../services/configstore";
import { getPagingRange } from "./paging";

const log = logger("api:mdi");
const CONFIG_KEY = "mdi";

const getSanitizedRecords = () => {
	const records = ensureArray(config.get(CONFIG_KEY, []));

	let shouldUpdate = false;
	for (let i = 0; i < records.length; ++i) {
		if (!isPlainObject(records[i])) {
			records[i] = {};
		}

		const record = records[i];

		if (!record.id) {
			record.id = uuid.v4();
			shouldUpdate = true;
		}
	}

	if (shouldUpdate) {
		log.debug(`update sanitized records: ${JSON.stringify(records)}`);

		// Pass `{ silent changes }` will suppress the change event
		config.set(CONFIG_KEY, records, { silent: true });
	}

	return records;
};

export const fetch = (req, res) => {
	const records = getSanitizedRecords();
	const paging = !!req.query.paging;

	if (paging) {
		const { page = 1, pageLength = 10 } = req.query;
		const totalRecords = records.length;
		const [begin, end] = getPagingRange({ page, pageLength, totalRecords });
		const pagedRecords = records.slice(begin, end);

		res.send({
			pagination: {
				page: Number(page),
				pageLength: Number(pageLength),
				totalRecords: Number(totalRecords),
			},
			records: pagedRecords.map((record) => {
				const { id, name, command, grid = {} } = { ...record };
				return { id, name, command, grid };
			}),
		});
	} else {
		res.send({
			records: records.map((record) => {
				const { id, name, command, grid = {} } = { ...record };
				return { id, name, command, grid };
			}),
		});
	}
};

export const create = (req, res) => {
	const { name, command, grid = {} } = { ...req.body };

	if (!name) {
		res.status(ERR_BAD_REQUEST).send({
			msg: 'The "name" parameter must not be empty',
		});
		return;
	}

	if (!command) {
		res.status(ERR_BAD_REQUEST).send({
			msg: 'The "command" parameter must not be empty',
		});
		return;
	}

	try {
		const records = getSanitizedRecords();
		const record = {
			id: uuid.v4(),
			name: name,
			command: command,
			grid: grid,
		};

		records.push(record);
		config.set(CONFIG_KEY, records);

		res.send({ err: null });
	} catch (err) {
		res.status(ERR_INTERNAL_SERVER_ERROR).send({
			msg: "Failed to save " + JSON.stringify(settings.cncrc),
		});
	}
};

export const read = (req, res) => {
	const id = req.params.id;
	const records = getSanitizedRecords();
	const record = find(records, { id: id });

	if (!record) {
		res.status(ERR_NOT_FOUND).send({
			msg: "Not found",
		});
		return;
	}

	const { name, command, grid = {} } = { ...record };
	res.send({ id, name, command, grid });
};

export const update = (req, res) => {
	const id = req.params.id;
	const records = getSanitizedRecords();
	const record = find(records, { id: id });

	if (!record) {
		res.status(ERR_NOT_FOUND).send({
			msg: "Not found",
		});
		return;
	}

	const {
		name = record.name,
		command = record.command,
		grid = record.grid,
	} = { ...req.body };

	/*
    if (!name) {
        res.status(ERR_BAD_REQUEST).send({
            msg: 'The "name" parameter must not be empty'
        });
        return;
    }

    if (!command) {
        res.status(ERR_BAD_REQUEST).send({
            msg: 'The "command" parameter must not be empty'
        });
        return;
    }
    */

	try {
		record.name = String(name || "");
		record.command = String(command || "");
		record.grid = isPlainObject(grid) ? grid : {};

		config.set(CONFIG_KEY, records);

		res.send({ err: null });
	} catch (err) {
		res.status(ERR_INTERNAL_SERVER_ERROR).send({
			msg: "Failed to save " + JSON.stringify(settings.cncrc),
		});
	}
};

export const bulkUpdate = (req, res) => {
	const { records } = { ...req.body };

	if (!records) {
		res.status(ERR_BAD_REQUEST).send({
			msg: 'The "records" parameter must not be empty',
		});
		return;
	}

	const filteredRecords = ensureArray(records).filter((record) =>
		isPlainObject(record),
	);

	for (let i = 0; i < filteredRecords.length; ++i) {
		const record = filteredRecords[i];
		const { id, name, command, grid = {} } = { ...record };

		if (!id) {
			record.id = uuid.v4();
		}
		record.name = String(name || "");
		record.command = String(command || "");
		record.grid = isPlainObject(grid) ? grid : {};
	}

	try {
		config.set(CONFIG_KEY, filteredRecords);
		res.send({ err: null });
	} catch (err) {
		res.status(ERR_INTERNAL_SERVER_ERROR).send({
			msg: "Failed to save " + JSON.stringify(settings.cncrc),
		});
	}
};

export const __delete = (req, res) => {
	const id = req.params.id;
	const records = getSanitizedRecords();
	const record = find(records, { id: id });

	if (!record) {
		res.status(ERR_NOT_FOUND).send({
			msg: "Not found",
		});
		return;
	}

	try {
		const filteredRecords = records.filter((record) => {
			return record.id !== id;
		});
		config.set(CONFIG_KEY, filteredRecords);

		res.send({ err: null });
	} catch (err) {
		res.status(ERR_INTERNAL_SERVER_ERROR).send({
			msg: "Failed to save " + JSON.stringify(settings.cncrc),
		});
	}
};