<?php
namespace Sudalys\ImportService;

use Sudalys\ImportService\Interfaces\HeaderSpecificationInterface;
use Sudalys\ImportService\Result\ValidationResult;
use Sudalys\ImportService\Interfaces\ValidatorInterface;

class CsvValidator implements ValidatorInterface
{
    public function __construct(private HeaderSpecificationInterface $headerSpecification, private  $columnSpecification){}
    public function validate(array $header, iterable $records): ValidationResult
    {
        $errors = [];
        $validData = [];

        if (!$this->headerSpecification->isSatisfiedBy($header)) {
            $errors[] = $this->headerSpecification->getErrorMessage();
            $errors = array_merge($errors, $this->headerSpecification->getErrorsHeader($header));
        }
        $rowIndex = 2;
        foreach ($records as $row){
            $rowErrors = [];
            foreach ($this->columnSpecification as $column => $specification) {
                if (!isset($row[$column]) || !$specification->isSatisfiedBy($row[$column])) {
                    $rowErrors[] = "Ligne $rowIndex: " . $specification->getErrorMessage();
                }
            }
            if (!empty($rowErrors)) {
                $errors = array_merge($errors, $rowErrors);
            } else {
                $validData[] = $row;
            }
            $rowIndex++;
        }
        return new ValidationResult( $errors, $validData);
    }
    
}