<?php

namespace RprtCli\Utils\CsvReport;

use RprtCli\Utils\CsvReport\CsvReportInterface;

class CsvReport implements CsvReportInterface {

  public function getReportData(string $file_path): array {
    $output = [];
    // @TODO replace with config service.
    $config = $this->dummyConfig();
    foreach (array_keys($config['projects']) as $key) {
      $output[$key] = 0;
    }
    if ($file = fopen($file_path, 'r')) {
      while (($line = fgetcsv($file)) !== FALSE) {
        $parsed = $this->parseCsvFile($line);
        // $key = reset(array_keys($parsed));
        $key = array_key_first($parsed);
        if (isset($output[$key])) {
          $output[$key] += (int) reset($parsed);
        }
      }
    }
    return $output;
  }

  protected function parseCsvFile(array $raw_data): array {
    $config = $this->dummyConfig();
    // var_dump($raw_data);
    foreach ($config['projects'] as $key => $project) {
      if (preg_match('/'.$project['pattern'].'/', $raw_data[1])) {
        return [$key => $raw_data[4]];
      }
    }
    return [];
  }

  protected function dummyConfig(): array {
    $config = [
      'projects' => [
        'LDP' => [
          'name' => 'lupus.digital',
          'pattern' => 'LDP-[0-9]+',
          'price' => 26,
          // optional specify columns
        ],
        'WV' => [
          'name' => 'Wirtschaftsverlag',
          'pattern' => 'WV-[0-9]+',
          'price' => 26,
          // optional specify columns
        ],
        'Other' => [
          'name' => 'Other projects',
          'pattern' => '(?!.\bLDP\b)(?!.\bWV\b)',
          'price' => 26,
          // optional specify columns
        ],
      ],
    ];

    return $config;
  }
}