<?php

	namespace api\module;

	use \error\core\Error;


	class release{

		/* Releases a project
		*
		* @project<String> 						Project's name
		* @step<id> 							[OPT] Step to run
		*
		*/
		public function post($args){
			extract($args);

			/* (1) Load projects' configuration
			---------------------------------------------------------*/
			/* (1) Fetch file */
			$fc = file_get_contents(__CONFIG__.'/projects.json');
			if( !$fc )
				return [ 'error' => new Error(Err::UnreachableResource) ];

			/* (2) Checks json format */
			$js = json_decode( $fc, true );

			if( !$js )
				return [ 'error' => new Error(Err::ParsingFailed) ];


			/* (2) Checks @project argument and files
			---------------------------------------------------------*/
			/* (1) Checks @project */
			if( !isset($js[$project]) )
				return [ 'error' => new Error(Err::UnreachableResource) ];

			/* (2) Checks @project's folder */
			if( !is_dir($js[$project]['dir']) )
				return [ 'error' => new Error(Err::UnreachableResource) ];

			/* (3) Checks @git directory */
			if( !is_dir($js[$project]['dir']) )
				return [ 'error' => new Error(Err::UnreachableResource) ];


			/* (3) Launch script
			---------------------------------------------------------*/
			/* (1) 'cd' to project dir */
			chdir($js[$project]['dir']);

			/* (2) If given step, only do this one */
			if( !is_null($step) ){

				/* (2.1) If step does not exist */
				if( !isset($js[$project]['cmd'][$step]) )
					return [ 'error' => new Error(Err::ModuleError, 'step out of bounds') ];

				/* (2.2) Execute step */
				exec($js[$project]['cmd'][$step], $stdout);

				/* (2.3) Dispatch output */
				return [ $js[$project]['cmd'][$step] => $stdout ];

			}

			/* (3) Execute each step one by one */
			$stdout = [];

			foreach($js[$project]['cmd'] as $step=>$cmd){

				/* (3.1) Pre-create stdout */
				$stdout[$cmd] = '';

				/* (3.2) Execute step */
				exec($cmd, $stdout[$cmd]);

			}

			/* (4) Dispatch stdout */
			return [ 'stdout' => $stdout ];

		}

	}