munin/source/main.ts

/*
This file is part of »munin«.

Copyright 2025 'Fenris Wolf' <fenris@folksprak.org>

»munin« is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

»munin« 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with »munin«. If not, see <http://www.gnu.org/licenses/>.
 */


namespace _munin
{
		
	/**
	 */
	export async function main(
		args_raw : Array<string>
	): Promise<void>
	{
		// args
		const arg_handler : lib_plankton.args.class_handler = new lib_plankton.args.class_handler(
			{
				"action": lib_plankton.args.class_argument.positional({
					"index": 0,
					"type": lib_plankton.args.enum_type.string,
					"mode": lib_plankton.args.enum_mode.replace,
					"default": "run",
					"info": "what to do : test | run",
					"name": "action",
				}),
				"conf_path": lib_plankton.args.class_argument.volatile({
					"indicators_long": ["conf-path"],
					"indicators_short": ["c"],
					"type": lib_plankton.args.enum_type.string,
					"mode": lib_plankton.args.enum_mode.replace,
					"default": "munin.json",
					"info": "path to configuration file",
					"name": "conf-path",
				}),
				"conf_schema": lib_plankton.args.class_argument.volatile({
					"indicators_long": ["conf-schema"],
					"indicators_short": ["s"],
					"type": lib_plankton.args.enum_type.string,
					"mode": lib_plankton.args.enum_mode.replace,
					"default": "",
					"info": "only print the configuration schema in a specific version (latest version via argument '_')",
					"name": "conf-schema",
				}),
				"conf_expose": lib_plankton.args.class_argument.volatile({
					"indicators_long": ["conf-expose"],
					"indicators_short": ["e"],
					"type": lib_plankton.args.enum_type.boolean,
					"mode": lib_plankton.args.enum_mode.replace,
					"default": false,
					"info": "whether to expose the full configuration",
					"name": "conf-expose",
				}),
				"single_run": lib_plankton.args.class_argument.volatile({
					"indicators_long": ["single-run"],
					"indicators_short": ["x"],
					"type": lib_plankton.args.enum_type.boolean,
					"mode": lib_plankton.args.enum_mode.replace,
					"default": false,
					"info": "whether to only execute one iteration at run",
					"name": "single-run",
				}),
				"verbosity": lib_plankton.args.class_argument.volatile({
					"indicators_long": ["verbosity"],
					"indicators_short": ["v"],
					"type": lib_plankton.args.enum_type.string,
					"mode": lib_plankton.args.enum_mode.replace,
					"default": "notice",
					"info": "error | warning | notice | info | debug",
					"name": "verbosity",
				}),
				"dry_run": lib_plankton.args.class_argument.volatile({
					"indicators_long": ["dry-run"],
					"indicators_short": ["q"],
					"type": lib_plankton.args.enum_type.boolean,
					"mode": lib_plankton.args.enum_mode.replace,
					"default": false,
					"info": "whether to skip the sending of reminders (logs will be written)",
					"name": "dry-run",
				}),
				"help": lib_plankton.args.class_argument.volatile({
					"indicators_long": ["help"],
					"indicators_short": ["h"],
					"type": lib_plankton.args.enum_type.boolean,
					"mode": lib_plankton.args.enum_mode.replace,
					"default": false,
					"info": "alias for action 'help'",
					"name": "help",
				}),
			}
		);
		const args : Record<string, any> = arg_handler.read(
			lib_plankton.args.enum_environment.cli,
			args_raw.join(" ")
		);
		
		if (args.help) {
			process.stdout.write(
				arg_handler.generate_help(
					{
						"programname": "munin",
						"description": "sends reminders about upcoming events",
						"executable": "node build/munin",
					}
				)
			);
		}
		else {
			if (args.conf_schema !== "") {
				process.stdout.write(
					lib_plankton.json.encode(
						_munin.conf.schema((args.conf_schema === "_") ? undefined : args.conf_schema),
						{
							"formatted": true,
						}
					)
					+
					"\n"
				);
			}
			else {
				switch (args.action) {
					default:
					{
						throw (new Error("unhandled action: " + args.action));
						break;
					}
					case "test":
					{
						_munin.test.all();
						break;
					}
					case "run":
					{
						// init
						const conf : _munin.conf.type_conf = await _munin.conf.load(args.conf_path);
						lib_plankton.log.set_main_logger(
							[
								{
									"kind": "filtered",
									"data": {
										"core": {
											"kind": "std",
											"data": {
												"target": "stdout",
												"format": {
													"kind": "jsonl",
													"data": {
														"structured": true
													}
												}
											}
										},
										"predicate": [
											[
												{
													"item": {
														"kind": "level",
														"data": {
															"threshold": args.verbosity,
														}
													},
												},
											]
										],
									}
								},
							]
						);
						
						// exec
						if (args.conf_expose) {
							process.stdout.write(
								lib_plankton.json.encode(
									conf,
									{
										"formatted": true,
									}
								)
								+
								"\n"
							);
						}
						
						_munin.logic.run(
							conf,
							{
								"single_run": args.single_run,
								"dry_run": args.dry_run,
							}
						);
						
						break;
					}
				}
			}
		}

		return Promise.resolve<void>(undefined);
	}
}

_munin.main(process.argv.slice(2))
	.then(() => {})
	.catch((reason) => {process.stderr.write(String(reason) + "\n");})
;