<?php
namespace OCA\MoneyPlanner\Service;

use Exception;
use OCP\AppFramework\Db\DoesNotExistException;
use OCP\AppFramework\Db\MultipleObjectsReturnedException;
use OCA\MoneyPlanner\Db\Transaction;
use OCA\MoneyPlanner\Db\TransactionMapper;

class TransactionService {
  private $mapper;

  public function __construct(TransactionMapper $mapper){
    $this->mapper = $mapper;
  }

  public function findAll(string $userId) {
    return $this->mapper->findAll($userId);
  }

  private function handleException($e) {
    if ($e instanceof DoesNotExistException ||
        $e instanceof MultipleObjectsReturnedException) {
      throw new NotFoundException($e->getMessage());
    } else {
      throw $e;
    }
  }

  public function find(int $id, string $userId) {
    try {
      return $this->mapper->find($id, $userId);
    } catch(Exception $e) {
      $this->handleException($e);
    }
  }

  public function create(
    $accountFrom,
    $accountTo,
    int $group,
    int $category,
    string $balance,
    string $date,
    $freqNum,
    string $freqType,
    string $userId
  ) {
    $transaction = new Transaction();
    $transaction->setAccountFrom($accountFrom);
    $transaction->setAccountTo($accountTo);
    $transaction->setGroup($group);
    $transaction->setCategory($category);
    $transaction->setBalance($balance);
    $transaction->setDate($date);
    $transaction->setFreqNum($freqNum);
    $transaction->setFreqType($freqType);
    $transaction->setUserId($userId);
    return $this->mapper->insert($transaction);
  }

  public function update(
    int $id,
    $accountFrom,
    $accountTo,
    int $group,
    int $category,
    string $balance,
    string $date,
    $freqNum,
    string $freqType,
    string $userId
  ) {
    try {
      $transaction = $this->mapper->find($id, $userId);
      $transaction->setAccountFrom($accountFrom);
      $transaction->setAccountTo($accountTo);
      $transaction->setGroup($group);
      $transaction->setCategory($category);
      $transaction->setBalance($balance);
      $transaction->setDate($date);
      $transaction->setFreqNum($freqNum);
      $transaction->setFreqType($freqType);
      return $this->mapper->update($transaction);
    } catch(Exception $e) {
      $this->handleException($e);
    }
  }

  public function delete(int $id, string $userId) {
    try {
      $transaction = $this->mapper->find($id, $userId);
      $this->mapper->delete($transaction);
      return $transaction;
    } catch(Exception $e) {
      $this->handleException($e);
    }
  }
}