AddressHandler.php 6.18 KB
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<?php

namespace LQDN\Handler;

use Doctrine\DBAL\Connection;
use LQDN\Command\AddressCreateCommand;
use LQDN\Command\AddressDeleteCommand;
use LQDN\Command\AddressUpdateCommand;
use LQDN\Exception\AddressAlreadyExistsException;
use LQDN\Exception\AddressUsedException;

class AddressHandler
{
    private $connection;

    public function __construct(Connection $connection)
    {
        $this->connection = $connection;
    }

    /**
     * Delete an address. If there's a default adress, we should replace it in
     * dons and contreparties. If there's none and the adress is used
     * in contreparties, we should raise an error.
     *
     * @param AddressDeleteCommand $command
     */
    public function handleAddressDeleteCommand(AddressDeleteCommand $command)
    {
        // Before deleting, we need to recover the adresse_id and remove it from
        // dons and contreparties table.
        $user_id = $command->getUserId();
        $addressId = $command->getAddressId();
        // Let's check if the address is used
        if ($this->addressUsed($addressId) == true) {
            // First lets' check if there is a default Address we could use
            $default = $this->getDefaultAddress($user_id);
            $params = ['id' => $command->getAddressId(),
                'default_id' => $default];

            if ($default != '' and $default != $addressId) {
                // We have a default address which is not the current one
                $this->connection->executeUpdate("UPDATE dons SET adresse_id = :default_id WHERE addresse_id = :id", $params);
                $this->connection->executeUpdate("UPDATE contreparties SET adresse_id= :default_id WHERE adresse_id = :id", $params);
            } else {
                // We do not have a default address and the address is used
                // somehow.
                throw new AddressUsedException();
            };
        };
        $this->connection->executeUpdate("DELETE FROM adresses WHERE id = :id", ['id' => $addressId]);
    }

    /**
     * Update an address.
     *
     * @param AddressUpdateCommand $command
     */
    public function handleAddressUpdateCommand(AddressUpdateCommand $command)
    {
        $userId = $command->getUserId();
        if ($isDefault = $command->isDefault()) {
            $this->undefaultAddresses($userId);
        }
        $query = <<<EOF
UPDATE adresses
SET
  alias = :alias,
  adresse = :address,
  adresse2 = :address2,
  codepostal = :postal_code,
  ville = :city,
  pays = :country,
  etat = :state,
  defaut = :default
WHERE id = :address_id
  AND user_id = :user_id;
EOF;

        $stmt = $this->connection->prepare($query);
        $stmt->bindValue('alias', $command->getAlias());
        $stmt->bindValue('address', $command->getAddress());
        $stmt->bindValue('address2', $command->getAddress2());
        $stmt->bindValue('postal_code', $command->getPostalCode());
        $stmt->bindValue('city', $command->getCity());
        $stmt->bindValue('country', $command->getCountry());
        $stmt->bindValue('state', $command->getState());
        $stmt->bindValue('default', $command->isDefault());
        $stmt->bindValue('address_id', $command->getAddressId());
        $stmt->bindValue('user_id', $command->getUserId());
        $stmt->execute();
    }

    /**
     * Create an address.
     *
     * @param AddressCreateCommand $command
     */
    public function handleAddressCreateCommand(AddressCreateCommand $command)
    {
        $userId = $command->getUserId();
        $alias = $command->getAlias();
        if ($this->addressExists($userId, $alias)) {
            throw new AddressAlreadyExistsException();
        }

        if ($isDefault = $command->isDefault()) {
            $this->undefaultAddresses($userId);
        }

        $query =<<<EOF
INSERT INTO adresses(user_id, nom, alias, adresse, adresse2, codepostal, ville, etat, pays, defaut)
VALUES (:user_id, :name, :alias, :address, :address2, :postal_code, :city, :state, :country, :default)
EOF;

        $stmt = $this->connection->prepare($query);
        $stmt->bindValue('user_id', $command->getUserId());
        $stmt->bindValue('name', $command->getName());
        $stmt->bindValue('alias', $command->getAlias());
        $stmt->bindValue('address', $command->getAddress());
        $stmt->bindValue('address2', $command->getAddress2());
        $stmt->bindValue('postal_code', $command->getPostalCode());
        $stmt->bindValue('city', $command->getCity());
        $stmt->bindValue('state', $command->getState());
        $stmt->bindValue('country', $command->getCountry());
        $stmt->bindValue('default', $isDefault);
        $stmt->execute();
    }

    /**
     * Undefault addresses of a given user.
     *
     * @param int $userId
     */
    private function undefaultAddresses($userId)
    {
        $this->connection->executeUpdate("UPDATE adresses SET defaut = FALSE WHERE user_id = :user_id", [
            'user_id' => $userId,
        ]);
    }

    /**
     * Get the default address of a given user.
     *
     * @param int $userId
     *
     * @return int
     */
    private function getDefaultAddress($userId)
    {
        return (int) $this->connection->fetchColumn(
            "SELECT id FROM adresses WHERE user_id = :user_id AND defaut = TRUE",
            [
                'user_id' => $userId,
            ], 0
        );
    }

    /**
     * Check if an address already exists.
     *
     * @param int $userId
     * @param string $alias
     *
     * @return bool
     */
    private function addressExists($userId, $alias)
    {
        return (bool) $this->connection->fetchColumn(
            "SELECT 1 FROM adresses WHERE user_id = :user_id AND alias = :alias",
            [
                'user_id' => $userId,
                'alias' => $alias,
            ], 0
        );
    }

    /**
     * Check if an adress is used.
     *
     * @param int $addressId
     *
     * @return bool
     */
    private function addressUsed($addressId)
    {
        $count = (int) $this->connection->fetchColumn(
            "SELECT count(1) FROM contreparties, dons WHERE contreparties.adresse_id = :id OR dons.adresse_id = :id",
            [
                'id' => $addressId,
            ], 0
        );
        return ($count > 0);
    }
}