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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace App\Domain\Transaction\Service; |
| 6 | |
| 7 | use App\Domain\Exception\NotFoundException; |
| 8 | use App\Domain\Transaction\Data\TransactionData; |
| 9 | use App\Domain\Transaction\Repository\TransactionRepository; |
| 10 | use DomainException; |
| 11 | use InvalidArgumentException; |
| 12 | |
| 13 | use function in_array; |
| 14 | |
| 15 | class TransactionFinder |
| 16 | { |
| 17 | private const VALID_TYPES = [ |
| 18 | 'deposit', |
| 19 | 'withdrawal', |
| 20 | 'transfer_in', |
| 21 | 'transfer_out', |
| 22 | 'interest', |
| 23 | 'fee', |
| 24 | 'loan_disbursement', |
| 25 | 'loan_payment', |
| 26 | ]; |
| 27 | |
| 28 | private const MAX_LIMIT = 100; |
| 29 | |
| 30 | public function __construct( |
| 31 | private readonly TransactionRepository $repository, |
| 32 | ) {} |
| 33 | |
| 34 | /** |
| 35 | * Find transactions by account ID with pagination and filtering. |
| 36 | * |
| 37 | * @param int $accountId |
| 38 | * @param int $page |
| 39 | * @param int $limit |
| 40 | * @param ?string $type |
| 41 | * @param ?string $startDate |
| 42 | * @param ?string $endDate |
| 43 | * |
| 44 | * @throws DomainException If account does not exist |
| 45 | * @throws InvalidArgumentException If parameters are invalid |
| 46 | * |
| 47 | * @return array{data: list<TransactionData>, total: int, page: int, limit: int} |
| 48 | */ |
| 49 | public function findByAccountId( |
| 50 | int $accountId, |
| 51 | int $page = 1, |
| 52 | int $limit = 10, |
| 53 | ?string $type = null, |
| 54 | ?string $startDate = null, |
| 55 | ?string $endDate = null, |
| 56 | ): array { |
| 57 | // Validate account exists |
| 58 | if (!$this->repository->accountExists($accountId)) { |
| 59 | throw new NotFoundException("Account with ID {$accountId} not found"); |
| 60 | } |
| 61 | |
| 62 | // Validate page |
| 63 | if ($page < 1) { |
| 64 | throw new InvalidArgumentException('Page must be at least 1'); |
| 65 | } |
| 66 | |
| 67 | // Validate and clamp limit |
| 68 | if ($limit < 1) { |
| 69 | throw new InvalidArgumentException('Limit must be at least 1'); |
| 70 | } |
| 71 | $limit = min($limit, self::MAX_LIMIT); |
| 72 | |
| 73 | // Validate transaction type if provided |
| 74 | if ($type !== null && !in_array($type, self::VALID_TYPES, true)) { |
| 75 | throw new InvalidArgumentException( |
| 76 | 'Invalid transaction type. Must be one of: ' . implode(', ', self::VALID_TYPES), |
| 77 | ); |
| 78 | } |
| 79 | |
| 80 | // Validate date format if provided |
| 81 | if ($startDate !== null && !$this->isValidDate($startDate)) { |
| 82 | throw new InvalidArgumentException('Invalid startDate format. Use YYYY-MM-DD'); |
| 83 | } |
| 84 | |
| 85 | if ($endDate !== null && !$this->isValidDate($endDate)) { |
| 86 | throw new InvalidArgumentException('Invalid endDate format. Use YYYY-MM-DD'); |
| 87 | } |
| 88 | |
| 89 | // Validate date range |
| 90 | if ($startDate !== null && $endDate !== null && $startDate > $endDate) { |
| 91 | throw new InvalidArgumentException('startDate cannot be after endDate'); |
| 92 | } |
| 93 | |
| 94 | $result = $this->repository->findByAccountId( |
| 95 | accountId: $accountId, |
| 96 | page: $page, |
| 97 | limit: $limit, |
| 98 | type: $type, |
| 99 | startDate: $startDate, |
| 100 | endDate: $endDate, |
| 101 | ); |
| 102 | |
| 103 | return [ |
| 104 | 'data' => $result['data'], |
| 105 | 'total' => $result['total'], |
| 106 | 'page' => $page, |
| 107 | 'limit' => $limit, |
| 108 | ]; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Validate date string format (YYYY-MM-DD). |
| 113 | * |
| 114 | * @param string $date |
| 115 | */ |
| 116 | private function isValidDate(string $date): bool |
| 117 | { |
| 118 | if (!preg_match('/^\d{4}-\d{2}-\d{2}$/', $date)) { |
| 119 | return false; |
| 120 | } |
| 121 | |
| 122 | $parts = explode('-', $date); |
| 123 | |
| 124 | return checkdate((int)$parts[1], (int)$parts[2], (int)$parts[0]); |
| 125 | } |
| 126 | } |