#!/usr/bin/env node

'use strict';

/**

* This is where we finally parse and handle arguments passed to the `mocha` executable.
* Option parsing is handled by {@link https://npm.im/yargs yargs}.
* If executed via `node`, this module will run {@linkcode module:lib/cli/cli.main main()}.
*
* @private
* @module
*/

const debug = require('debug')('mocha:cli:cli'); const symbols = require('log-symbols'); const yargs = require('yargs/yargs'); const path = require('path'); const {loadOptions, YARGS_PARSER_CONFIG} = require('./options'); const commands = require('./commands'); const ansi = require('ansi-colors'); const {repository, homepage, version, gitter} = require('../../package.json');

/**

* - Accepts an `Array` of arguments
* - Modifies {@link https://nodejs.org/api/modules.html#modules_module_paths Node.js' search path} for easy loading of consumer modules
* - Sets {@linkcode https://nodejs.org/api/errors.html#errors_error_stacktracelimit Error.stackTraceLimit} to `Infinity`
* @summary Mocha's main entry point from the command-line.
* @param {string[]} argv - Array of arguments to parse, or by default the lovely `process.argv.slice(2)`
*/

exports.main = (argv = process.argv.slice(2)) => {

debug('entered main with raw args', argv);
// ensure we can require() from current working directory
module.paths.push(process.cwd(), path.resolve('node_modules'));

Error.stackTraceLimit = Infinity; // configurable via --stack-trace-limit?

var args = loadOptions(argv);

yargs()
  .scriptName('mocha')
  .command(commands.run)
  .command(commands.init)
  .updateStrings({
    'Positionals:': 'Positional Arguments',
    'Options:': 'Other Options',
    'Commands:': 'Commands'
  })
  .fail((msg, err, yargs) => {
    debug(err);
    yargs.showHelp();
    console.error(`\n${symbols.error} ${ansi.red('ERROR:')} ${msg}`);
    process.exit(1);
  })
  .help('help', 'Show usage information & exit')
  .alias('help', 'h')
  .version('version', 'Show version number & exit', version)
  .alias('version', 'V')
  .wrap(process.stdout.columns ? Math.min(process.stdout.columns, 80) : 80)
  .epilog(
    `Mocha Resources
  Chat: ${ansi.magenta(gitter)}
GitHub: ${ansi.blue(repository.url)}
  Docs: ${ansi.yellow(homepage)}
    `
  )
  .parserConfiguration(YARGS_PARSER_CONFIG)
  .config(args)
  .parse(args._);

};

// allow direct execution if (require.main === module) {

exports.main();

}