/*
 * This file is part of the authRXBN single sign-on package.
 *
 * (c) Ruben Meyer <contact@rxbn.de>
 */

let vorpal = require('vorpal')();
let chalk = require('chalk');
let fs = require('fs');

/**
 * read command files and interpret them
 * @author Ruben Meyer
 * @todo options, types, hide command, parsing, help, autocompletion, allow unknown options
 */
let cmdPath = global['__dirname']+'/bin/cli/cmds';
fs.readdir(cmdPath, (err, files) => {
	if(files.length > 0)
		files.forEach((file) => {
			let cmd = require(cmdPath+'/'+file); // read file

			// exported data is an object
			if(typeof cmd == 'object' && typeof cmd.command !== 'undefined') {
				// set initial building steps
				let builder = vorpal.command(cmd.command);

				// description
				if(typeof cmd.description !== 'undefined') builder = builder.description(cmd.description);

				// aliases
				if(typeof cmd.alias !== 'undefined') {
					if(typeof cmd.alias === 'object' && Array.isArray(cmd.alias)) builder = builder['alias'](...cmd.alias);
					if(typeof cmd.alias === 'string' && cmd.alias.split(',').length >= 2) {
						let args = cmd.alias.split(',');
						for(let i = 0; i < args.length; i++)
							args[i] = args[i].trim();
						builder = builder['alias'](...cmd.alias);
					}
				}

				// action
				if(typeof cmd.action !== 'undefined' && typeof cmd.action === 'function') {
					if(typeof cmd.actionDependencies !== 'undefined') {
						let dependencies = [];
						let actionDependencies = {};

						// format input
						if(typeof cmd.actionDependencies === 'object') {
							if(Array.isArray(cmd.actionDependencies))
								cmd.actionDependencies.forEach((dependency) => dependencies.push(dependency));
						} else if(typeof cmd.actionDependencies === 'string') {
							let strArr = cmd.actionDependencies.split(',');
							for(let i = 0; i < strArr.length; i++)
								dependencies.push(strArr[i].trim());
						}

						// retrieve dependencies; unknown dependencies wont be handled
						dependencies.forEach((dependency) => {
							switch(dependency) {
								case 'vorpal':
									actionDependencies['vorpal'] = vorpal;
									break;
								case 'chalk':
									actionDependencies['chalk'] = chalk;
									break;
							}
						});

						builder = builder['action'](cmd.action(actionDependencies));
					} else {
						builder = builder['action'](cmd.action);
					}
				}
			}
		});
});

/**
@TODO remove code
isJson = (str) => {
	try {
		let o = JSON.parse(str);


		return (o && typeof o === "object") ? true : false;
	} catch (e) {
		return false;
	}
};
*/

vorpal.delimiter('auth@rxbn$').show();

module.exports = vorpal;