<?php

	require_once __DIR__.'/../../include/php/const';

	function api_fetch(){

		/* [1] Fetch & generate useful data from features
		=========================================================*/
		/* (1) Initialize dataset
		---------------------------------------------------------*/
		$data = [
			'default' => [],
			'feature' => []
		];


		/* (2) Fetch DEFAULT data log
		---------------------------------------------------------*/
		$f = new SplFileObject(DEFAULT_DATA, 'r');

		while( !$f->eof() ){

			/* (1) Try to parse each line */
			$parsed = json_decode($f->fgets(), true);

			/* (2) Manage error */
			if( is_null($parsed) )
				continue;

			/* (3) Add entry to log */
			$data['default'][] = $parsed;

		}


		/* (3) Fetch for each feature which generates data
		---------------------------------------------------------*/
		foreach(scandir(SOURCE_DIR.'/feature') as $feat_name){

			/* (1) Ignore . and .. entries */
			if( in_array($feat_name, ['.', '..']) )
				continue;

			/* (2) Get absolute path */
			$abs_path = SOURCE_DIR."/feature/$feat_name";

			/* (3) Check if it is a directory */
			if( !file_exists($abs_path) || !is_dir($abs_path) )
				continue;

			/* (4) Store the feature entry (empty) */
			$data['feature'][$feat_name] = [];

			/* (5) Check for feature access log */
			if( !file_exists(DATA_DIR."/$feat_name") )
				continue;

			/* (6) Try to read log file */
			$f = new SplFileObject(DATA_DIR."/$feat_name", "r");

			while( !$f->eof() ){

				// {1} Try to parse JSON //
				$parsed = json_decode($f->fgets(), true);

				// {2} Manage error //
				if( is_null($parsed) )
					continue;

				// {3} If correct -> add entry to feature //
				$data['feature'][$feat_name][] = $parsed;

			}

			/* (7) Free file handler */
			$f = null;

		}

		
		return json_encode($data);
	}

	echo api_fetch();
	
	
?>