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File name : User.php

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<?php

/*
 * This file is part of the Kimai time-tracking app.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace App\Entity;

use App\Constants;
use App\Export\Annotation as Exporter;
use App\Utils\StringHelper;
use App\Validator\Constraints as Constraints;
use DateTime;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;
use Exception;
use JMS\Serializer\Annotation as Serializer;
use Swagger\Annotations as SWG;
use Symfony\Bridge\Doctrine\Validator\Constraints\UniqueEntity;
use Symfony\Component\Security\Core\User\EquatableInterface;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Validator\Constraints as Assert;

/**
 * @ORM\Entity(repositoryClass="App\Repository\UserRepository")
 * @ORM\Table(name="kimai2_users",
 *      uniqueConstraints={
 *          @ORM\UniqueConstraint(columns={"username"}),
 *          @ORM\UniqueConstraint(columns={"email"})
 *      }
 * )
 * @UniqueEntity("username")
 * @UniqueEntity("email")
 * @Constraints\User(groups={"UserCreate", "Registration", "Default"})
 *
 * @Serializer\ExclusionPolicy("all")
 * @Serializer\VirtualProperty(
 *      "LanguageAsString",
 *      exp="object.getLocale()",
 *      options={
 *          @Serializer\SerializedName("language"),
 *          @Serializer\Type(name="string"),
 *          @Serializer\Groups({"User_Entity"})
 *      }
 * )
 * @Serializer\VirtualProperty(
 *      "TimezoneAsString",
 *      exp="object.getTimezone()",
 *      options={
 *          @Serializer\SerializedName("timezone"),
 *          @Serializer\Type(name="string"),
 *          @Serializer\Groups({"User_Entity"})
 *      }
 * )
 *
 * @Exporter\Order({"id", "username", "alias", "title", "email", "last_login", "language", "timezone", "active", "registeredAt", "roles", "teams", "color", "accountNumber"})
 * @Exporter\Expose("email", label="label.email", exp="object.getEmail()")
 * @Exporter\Expose("username", label="label.username", exp="object.getUsername()")
 * @Exporter\Expose("timezone", label="label.timezone", exp="object.getTimezone()")
 * @Exporter\Expose("language", label="label.language", exp="object.getLanguage()")
 * @Exporter\Expose("last_login", label="label.lastLogin", exp="object.getLastLogin()", type="datetime")
 * @Exporter\Expose("roles", label="label.roles", exp="object.getRoles()", type="array")
 * @ Exporter\Expose("teams", label="label.team", exp="object.getTeams()", type="array")
 * @Exporter\Expose("active", label="label.active", exp="object.isEnabled()", type="boolean")
 */
class User implements UserInterface, EquatableInterface, \Serializable
{
    public const ROLE_USER = 'ROLE_USER';
    public const ROLE_TEAMLEAD = 'ROLE_TEAMLEAD';
    public const ROLE_ADMIN = 'ROLE_ADMIN';
    public const ROLE_SUPER_ADMIN = 'ROLE_SUPER_ADMIN';

public const DEFAULT_ROLE = self::ROLE_USER;
    public const DEFAULT_LANGUAGE = Constants::DEFAULT_LOCALE;
    public const DEFAULT_FIRST_WEEKDAY = 'monday';

public const AUTH_INTERNAL = 'kimai';
    public const AUTH_LDAP = 'ldap';
    public const AUTH_SAML = 'saml';

/**
     * Internal ID
     *
     * @var int
     *
     * @Serializer\Expose()
     * @Serializer\Groups({"Default"})
     *
     * @Exporter\Expose(label="label.id", type="integer")
     *
     * @ORM\Id
     * @ORM\GeneratedValue
     * @ORM\Column(name="id", type="integer")
     */
    private $id;
    /**
     * The user alias will be displayed in the frontend instead of the username
     *
     * @var string|null
     *
     * @Serializer\Expose()
     * @Serializer\Groups({"Default"})
     *
     * @Exporter\Expose(label="label.alias")
     *
     * @ORM\Column(name="alias", type="string", length=60, nullable=true)
     * @Assert\Length(max=60)
     */
    private $alias;
    /**
     * Registration date for the user
     *
     * @var DateTime|null
     *
     * @Exporter\Expose(label="profile.registration_date", type="datetime")
     *
     * @ORM\Column(name="registration_date", type="datetime", nullable=true)
     */
    private $registeredAt;
    /**
     * An additional title for the user, like the Job position or Department
     *
     * @var string|null
     *
     * @Serializer\Expose()
     * @Serializer\Groups({"User_Entity"})
     *
     * @Exporter\Expose(label="label.title")
     *
     * @ORM\Column(name="title", type="string", length=50, nullable=true)
     * @Assert\Length(max=50)
     */
    private $title;
    /**
     * URL to the user avatar, will be auto-generated if empty
     *
     * @var string|null
     *
     * @Serializer\Expose()
     * @Serializer\Groups({"User_Entity"})
     *
     * @ORM\Column(name="avatar", type="string", length=255, nullable=true)
     * @Assert\Length(max=255)
     */
    private $avatar;
    /**
     * API token (password) for this user
     *
     * @var string|null
     *
     * @ORM\Column(name="api_token", type="string", length=255, nullable=true)
     */
    private $apiToken;
    /**
     * @var string
     * @internal to be set via form, must not be persisted
     * @Assert\NotBlank(groups={"ApiTokenUpdate"})
     * @Assert\Length(min="8", max="60", groups={"ApiTokenUpdate"})
     */
    private $plainApiToken;
    /**
     * User preferences
     *
     * List of preferences for this user, required ones have dedicated fields/methods
     *
     * @var Collection<UserPreference>
     *
     * @ORM\OneToMany(targetEntity="App\Entity\UserPreference", mappedBy="user", cascade={"persist"})
     */
    private $preferences;
    /**
     * List of all team memberships.
     *
     * @var Collection<TeamMember>
     *
     * @Serializer\Expose()
     * @Serializer\Groups({"User_Entity"})
     * @SWG\Property(ref="#/definitions/TeamMembership")
     *
     * @ORM\OneToMany(targetEntity="App\Entity\TeamMember", mappedBy="user", fetch="LAZY", cascade={"persist"}, orphanRemoval=true)
     * @ORM\JoinColumn(onDelete="CASCADE")
     * @Assert\NotNull()
     */
    private $memberships;
    /**
     * The type of authentication used by the user (e.g. "kimai", "ldap", "saml")
     *
     * @var string|null
     * @internal for internal usage only
     *
     * @ORM\Column(name="auth", type="string", length=20, nullable=true)
     * @Assert\Length(max=20)
     */
    private $auth = self::AUTH_INTERNAL;
    /**
     * This flag will be initialized in UserEnvironmentSubscriber.
     *
     * @var bool|null
     * @internal has no database mapping as the value is calculated from a permission
     */
    private $isAllowedToSeeAllData = null;
    /**
     * @Serializer\Expose()
     * @Serializer\Groups({"Default"})
     *
     * @var string
     * @ORM\Column(name="username", type="string", length=180)
     * @Assert\NotBlank(groups={"Registration", "UserCreate", "Profile"})
     * @Assert\Length(min="2", max="60", groups={"Registration", "UserCreate", "Profile"})
     */
    private $username;
    /**
     * @var string
     * @ORM\Column(name="email", type="string", length=180)
     * @Assert\NotBlank(groups={"Registration", "UserCreate", "Profile"})
     * @Assert\Length(min="2", max="180")
     * @Assert\Email(groups={"Registration", "UserCreate", "Profile"})
     */
    private $email;
    /**
     * @Serializer\Expose()
     * @Serializer\Groups({"Default"})
     *
     * @Exporter\Expose(label="label.account_number")
     *
     * @var string|null
     * @ORM\Column(name="account", type="string", length=30, nullable=true)
     * @Assert\Length(allowEmptyString=true, max="30", groups={"Registration", "UserCreate", "Profile"})
     */
    private $accountNumber;
    /**
     * @Serializer\Expose()
     * @Serializer\Groups({"Default"})
     *
     * @var bool
     * @ORM\Column(name="enabled", type="boolean")
     */
    private $enabled = false;
    /**
     * Encrypted password. Must be persisted.
     *
     * @var string
     * @ORM\Column(name="password", type="string")
     */
    private $password;
    /**
     * Plain password. Used for model validation, not persisted.
     *
     * TODO make the password rules configurable
     *
     * @var string|null
     * @Assert\NotBlank(groups={"Registration", "PasswordUpdate", "UserCreate"})
     * @Assert\Length(min="8", max="60", groups={"Registration", "PasswordUpdate", "UserCreate", "ResetPassword", "ChangePassword"})
     */
    private $plainPassword;
    /**
     * @var \DateTime|null
     * @ORM\Column(name="last_login", type="datetime", nullable=true)
     */
    private $lastLogin;
    /**
     * Random string sent to the user email address in order to verify it.
     *
     * @var string|null
     * @ORM\Column(name="confirmation_token", type="string", length=180, unique=true, nullable=true)
     */
    private $confirmationToken;
    /**
     * @var \DateTime|null
     * @ORM\Column(name="password_requested_at", type="datetime", nullable=true)
     */
    private $passwordRequestedAt;
    /**
     * List of all role names
     *
     * @Serializer\Expose()
     * @Serializer\Groups({"User_Entity"})
     * @Serializer\Type("array<string>")
     *
     * @var array
     * @ORM\Column(name="roles", type="array")
     * @Constraints\Role(groups={"RolesUpdate"})
     */
    private $roles = [];

use ColorTrait;

public function __construct()
    {
        $this->registeredAt = new DateTime();
        $this->preferences = new ArrayCollection();
        $this->memberships = new ArrayCollection();
    }

public function getId(): ?int
    {
        return $this->id;
    }

public function getRegisteredAt(): ?DateTime
    {
        return $this->registeredAt;
    }

public function setRegisteredAt(DateTime $registeredAt): User
    {
        $this->registeredAt = $registeredAt;

return $this;
    }

public function setAlias(?string $alias): User
    {
        $this->alias = StringHelper::ensureMaxLength($alias, 60);

return $this;
    }

public function getAlias(): ?string
    {
        return $this->alias;
    }

public function getTitle(): ?string
    {
        return $this->title;
    }

public function setTitle(?string $title): User
    {
        $this->title = StringHelper::ensureMaxLength($title, 50);

return $this;
    }

public function getAvatar(): ?string
    {
        return $this->avatar;
    }

public function setAvatar(?string $avatar): User
    {
        $this->avatar = $avatar;

return $this;
    }

public function getApiToken(): ?string
    {
        return $this->apiToken;
    }

public function setApiToken(?string $apiToken): User
    {
        $this->apiToken = $apiToken;

return $this;
    }

public function getPlainApiToken(): ?string
    {
        return $this->plainApiToken;
    }

public function setPlainApiToken(?string $plainApiToken): User
    {
        $this->plainApiToken = $plainApiToken;

return $this;
    }

/**
     * Read-only list of of all visible user preferences.
     *
     * @Serializer\VirtualProperty
     * @Serializer\SerializedName("preferences"),
     * @Serializer\Groups({"User_Entity"})
     * @SWG\Property(type="array", @SWG\Items(ref="#/definitions/UserPreference"))
     *
     * @internal only for API usage
     * @return UserPreference[]
     */
    public function getVisiblePreferences(): array
    {
        // hide all internal preferences, which are either available in other fields
        // or which are only used within the Kimai UI
        $skip = [
            UserPreference::TIMEZONE,
            UserPreference::LOCALE,
            UserPreference::SKIN,
            'calendar.initial_view',
            'login.initial_view',
            'reporting.initial_view',
            'theme.collapsed_sidebar',
            'theme.layout',
            'theme.update_browser_title',
            'timesheet.daily_stats',
            'timesheet.export_decimal',
        ];

$all = [];
        foreach ($this->preferences as $preference) {
            if ($preference->isEnabled() && !\in_array($preference->getName(), $skip)) {
                $all[] = $preference;
            }
        }

return $all;
    }

/**
     * @return Collection<UserPreference>
     */
    public function getPreferences(): Collection
    {
        return $this->preferences;
    }

/**
     * @param iterable<UserPreference> $preferences
     * @return User
     */
    public function setPreferences(iterable $preferences): User
    {
        $this->preferences = new ArrayCollection();

foreach ($preferences as $preference) {
            $this->addPreference($preference);
        }

return $this;
    }

/**
     * @param string $name
     * @param bool|int|string|null $value
     */
    public function setPreferenceValue(string $name, $value = null)
    {
        $pref = $this->getPreference($name);

if (null === $pref) {
            $pref = new UserPreference();
            $pref->setName($name);
            $this->addPreference($pref);
        }

$pref->setValue($value);
    }

public function getPreference(string $name): ?UserPreference
    {
        // this code will be triggered, if a currently logged-in user will be deleted and then refreshed from the session
        // via one of the UserProvider - e.g. see LdapUserProvider::refreshUser() which calls $user->getPreferenceValue()
        if ($this->preferences === null) {
            return null;
        }

foreach ($this->preferences as $preference) {
            if ($preference->getName() === $name) {
                return $preference;
            }
        }

return null;
    }

public function getTimeFormat(): string
    {
        if ($this->is24Hour()) {
            return 'H:i';
        }

return 'h:i A';
    }

public function is24Hour(): bool
    {
        return (bool) $this->getPreferenceValue(UserPreference::HOUR_24, true);
    }

public function getLocale(): string
    {
        return $this->getPreferenceValue(UserPreference::LOCALE, User::DEFAULT_LANGUAGE);
    }

public function getTimezone(): string
    {
        return $this->getPreferenceValue(UserPreference::TIMEZONE, date_default_timezone_get());
    }

public function getLanguage(): string
    {
        return $this->getLocale();
    }

public function setLanguage(?string $language)
    {
        if ($language === null) {
            $language = User::DEFAULT_LANGUAGE;
        }
        $this->setPreferenceValue(UserPreference::LOCALE, $language);
    }

public function isFirstDayOfWeekSunday(): bool
    {
        return $this->getFirstDayOfWeek() === 'sunday';
    }

public function getFirstDayOfWeek(): string
    {
        return $this->getPreferenceValue(UserPreference::FIRST_WEEKDAY, User::DEFAULT_FIRST_WEEKDAY);
    }

public function isSmallLayout(): bool
    {
        return $this->getPreferenceValue('theme.layout', 'fixed') === 'boxed';
    }

public function isExportDecimal(): bool
    {
        return (bool) $this->getPreferenceValue('timesheet.export_decimal', false);
    }

public function setTimezone(?string $timezone)
    {
        if ($timezone === null) {
            $timezone = date_default_timezone_get();
        }
        $this->setPreferenceValue(UserPreference::TIMEZONE, $timezone);
    }

/**
     * @param string $name
     * @param mixed $default
     * @return bool|int|string|null
     */
    public function getPreferenceValue(string $name, $default = null)
    {
        $preference = $this->getPreference($name);
        if (null === $preference) {
            return $default;
        }

return $preference->getValue();
    }

/**
     * @param string $name
     * @return bool|int|string|null
     */
    public function getMetaFieldValue(string $name)
    {
        return $this->getPreferenceValue($name);
    }

/**
     * @param UserPreference $preference
     * @return User
     */
    public function addPreference(UserPreference $preference): User
    {
        if (null === $this->preferences) {
            $this->preferences = new ArrayCollection();
        }

$this->preferences->add($preference);
        $preference->setUser($this);

return $this;
    }

public function addMembership(TeamMember $member): void
    {
        if ($this->memberships->contains($member)) {
            return;
        }

if ($member->getUser() === null) {
            $member->setUser($this);
        }

if ($member->getUser() !== $this) {
            throw new \InvalidArgumentException('Cannot set foreign user membership');
        }

// when using the API an invalid Team ID triggers the validation too late
        if ($member->getTeam() === null) {
            return;
        }

if (null !== $this->findMemberByTeam($member->getTeam())) {
            return;
        }

$this->memberships->add($member);
        $member->getTeam()->addMember($member);
    }

private function findMemberByTeam(Team $team): ?TeamMember
    {
        foreach ($this->memberships as $member) {
            if ($member->getTeam() === $team) {
                return $member;
            }
        }

return null;
    }

public function removeMembership(TeamMember $member): void
    {
        if (!$this->memberships->contains($member)) {
            return;
        }

$this->memberships->removeElement($member);
        $member->getTeam()->removeMember($member);
        $member->setUser(null);
        $member->setTeam(null);
    }

/**
     * @return Collection<TeamMember>
     */
    public function getMemberships(): Collection
    {
        return $this->memberships;
    }

public function hasMembership(TeamMember $member): bool
    {
        return $this->memberships->contains($member);
    }

/**
     * Checks if the user is member of any team.
     *
     * @return bool
     */
    public function hasTeamAssignment(): bool
    {
        return !$this->memberships->isEmpty();
    }

/**
     * Checks is the user is teamlead in any of the assigned teams.
     *
     * @see User::hasTeamleadRole()
     * @return bool
     */
    public function isTeamlead(): bool
    {
        foreach ($this->memberships as $membership) {
            if ($membership->isTeamlead()) {
                return true;
            }
        }

return false;
    }

/**
     * Checks if the given user is a team member.
     *
     * @param User $user
     * @return bool
     */
    public function hasTeamMember(User $user): bool
    {
        foreach ($this->memberships as $membership) {
            if ($membership->getTeam()->hasUser($user)) {
                return true;
            }
        }

return false;
    }

/**
     * List of all teams, this user is part of
     *
     * @Serializer\VirtualProperty
     * @Serializer\SerializedName("teams"),
     * @Serializer\Groups({"User_Entity"})
     * @SWG\Property(type="array", @SWG\Items(ref="#/definitions/Team"))
     *
     * @return Team[]
     */
    public function getTeams(): iterable
    {
        $teams = [];
        foreach ($this->memberships as $membership) {
            $teams[] = $membership->getTeam();
        }

return $teams;
    }

/**
     * Required in the User profile screen to edit his teams.
     *
     * @param Team $team
     */
    public function addTeam(Team $team): void
    {
        foreach ($this->memberships as $membership) {
            if ($membership->getTeam() === $team) {
                return;
            }
        }

$membership = new TeamMember();
        $membership->setUser($this);
        $membership->setTeam($team);

$this->addMembership($membership);
    }

/**
     * Required in the User profile screen to edit his teams.
     *
     * @param Team $team
     */
    public function removeTeam(Team $team): void
    {
        foreach ($this->memberships as $membership) {
            if ($membership->getTeam() === $team) {
                $this->removeMembership($membership);

return;
            }
        }
    }

public function isInTeam(Team $team): bool
    {
        foreach ($this->memberships as $membership) {
            if ($membership->getTeam() === $team) {
                return true;
            }
        }

return false;
    }

public function isTeamleadOf(Team $team): bool
    {
        if (null !== ($member = $this->findMemberByTeam($team))) {
            return $member->isTeamlead();
        }

return false;
    }

public function canSeeAllData(): bool
    {
        return $this->isSuperAdmin() || true === $this->isAllowedToSeeAllData;
    }

/**
     * This method should not be called by plugins and returns true on success or false on a failure.
     *
     * @internal immutable property that cannot be set by plugins
     * @param bool $canSeeAllData
     * @return bool
     * @throws Exception
     */
    public function initCanSeeAllData(bool $canSeeAllData): bool
    {
        // prevent manipulation from plugins
        if (null !== $this->isAllowedToSeeAllData) {
            return false;
        }

$this->isAllowedToSeeAllData = $canSeeAllData;

return true;
    }

public function hasTeamleadRole(): bool
    {
        return $this->hasRole(static::ROLE_TEAMLEAD);
    }

public function isAdmin(): bool
    {
        return $this->hasRole(static::ROLE_ADMIN);
    }

public function getDisplayName(): ?string
    {
        if (!empty($this->getAlias())) {
            return $this->getAlias();
        }

return $this->getUsername();
    }

public function getAuth(): ?string
    {
        return $this->auth;
    }

public function setAuth(string $auth): User
    {
        $this->auth = $auth;

return $this;
    }

public function isSamlUser(): bool
    {
        return $this->auth === self::AUTH_SAML;
    }

public function isLdapUser(): bool
    {
        return $this->auth === self::AUTH_LDAP;
    }

public function isInternalUser(): bool
    {
        return $this->auth === null || $this->auth === self::AUTH_INTERNAL;
    }

public function addRole(string $role)
    {
        $role = strtoupper($role);
        if ($role === static::DEFAULT_ROLE) {
            return $this;
        }

if (!\in_array($role, $this->roles, true)) {
            $this->roles[] = $role;
        }

return $this;
    }

/**
     * {@inheritdoc}
     */
    public function eraseCredentials()
    {
        $this->plainPassword = null;
    }

/**
     * {@inheritdoc}
     */
    public function getUsername()
    {
        return $this->username;
    }

/**
     * {@inheritdoc}
     */
    public function getEmail()
    {
        return $this->email;
    }

/**
     * {@inheritdoc}
     */
    public function getPassword()
    {
        return $this->password;
    }

public function getPlainPassword(): ?string
    {
        return $this->plainPassword;
    }

public function getLastLogin(): ?DateTime
    {
        if ($this->lastLogin !== null) {
            // make sure to use the users own timezone
            $this->lastLogin->setTimeZone(new \DateTimeZone($this->getTimezone()));
        }

return $this->lastLogin;
    }

public function getConfirmationToken(): ?string
    {
        return $this->confirmationToken;
    }

/**
     * {@inheritdoc}
     */
    public function getRoles()
    {
        $roles = $this->roles;

// we need to make sure to have at least one role
        $roles[] = static::DEFAULT_ROLE;

return array_values(array_unique($roles));
    }

public function hasRole($role): bool
    {
        return \in_array(strtoupper($role), $this->getRoles(), true);
    }

public function setSuperAdmin(bool $isSuper): void
    {
        if (true === $isSuper) {
            $this->addRole(static::ROLE_SUPER_ADMIN);
        } else {
            $this->removeRole(static::ROLE_SUPER_ADMIN);
        }
    }

public function isSuperAdmin(): bool
    {
        return $this->hasRole(static::ROLE_SUPER_ADMIN);
    }

public function removeRole($role): User
    {
        if (false !== $key = array_search(strtoupper($role), $this->roles, true)) {
            unset($this->roles[$key]);
            $this->roles = array_values($this->roles);
        }

return $this;
    }

public function setUsername($username): User
    {
        $this->username = $username;

return $this;
    }

public function setEmail($email): User
    {
        $this->email = $email;

return $this;
    }

public function isEnabled(): bool
    {
        return $this->enabled;
    }

public function setEnabled(bool $enabled): User
    {
        $this->enabled = $enabled;

return $this;
    }

public function setPassword($password): User
    {
        $this->password = $password;

return $this;
    }

public function setPlainPassword($password): User
    {
        $this->plainPassword = $password;

return $this;
    }

public function setLastLogin(\DateTime $time = null): User
    {
        $this->lastLogin = $time;

return $this;
    }

public function setConfirmationToken($confirmationToken): User
    {
        $this->confirmationToken = $confirmationToken;

return $this;
    }

public function setPasswordRequestedAt(\DateTime $date = null): User
    {
        $this->passwordRequestedAt = $date;

return $this;
    }

/**
     * Gets the timestamp that the user requested a password reset.
     *
     * @return DateTime|null
     */
    public function getPasswordRequestedAt(): ?DateTime
    {
        return $this->passwordRequestedAt;
    }

public function isPasswordRequestNonExpired(int $seconds): bool
    {
        $date = $this->getPasswordRequestedAt();

if ($date === null || !($date instanceof DateTime)) {
            return false;
        }

return $date->getTimestamp() + $seconds > time();
    }

public function setRoles(array $roles): User
    {
        $this->roles = [];

foreach ($roles as $role) {
            $this->addRole($role);
        }

return $this;
    }

public function isEqualTo(UserInterface $user)
    {
        if (!$user instanceof self) {
            return false;
        }

if ($this->password !== $user->getPassword()) {
            return false;
        }

if ($this->username !== $user->getUsername()) {
            return false;
        }

return true;
    }

/**
     * {@inheritdoc}
     */
    public function serialize()
    {
        return serialize([
            $this->password,
            $this->username,
            $this->enabled,
            $this->id,
            $this->email,
        ]);
    }

/**
     * {@inheritdoc}
     */
    public function unserialize($serialized)
    {
        $data = unserialize($serialized);

// unserialize a user object from <= 1.14
        if (8 === \count($data)) {
            unset($data[1], $data[2], $data[7]);
            $data = array_values($data);
        }

list(
            $this->password,
            $this->username,
            $this->enabled,
            $this->id,
            $this->email) = $data;
    }

/**
     * {@inheritdoc}
     */
    public function getSalt()
    {
        return null;
    }

/**
     * @return string
     */
    public function __toString()
    {
        return $this->getDisplayName();
    }

public function getInitials(): string
    {
        $length = 2;

$name = $this->getDisplayName();
        $initial = '';

if (filter_var($name, FILTER_VALIDATE_EMAIL)) {
            // turn my.email@gmail.com into "My Email"
            $result = mb_strstr($name, '@', true);
            $name = $result === false ? $name : $result;
            $name = str_replace('.', ' ', $name);
        }

$words = explode(' ', $name);

// if name contains single word, use first N character
        if (\count($words) === 1) {
            $initial = $words[0];

if (mb_strlen($name) >= $length) {
                $initial = mb_substr($name, 0, $length, 'UTF-8');
            }
        } else {
            // otherwise, use initial char from each word
            foreach ($words as $word) {
                $initial .= mb_substr($word, 0, 1, 'UTF-8');
            }
            $initial = mb_substr($initial, 0, $length, 'UTF-8');
        }

$initial = mb_strtoupper($initial);

return $initial;
    }

public function getAccountNumber(): ?string
    {
        return $this->accountNumber;
    }

public function setAccountNumber(?string $accountNumber): void
    {
        $this->accountNumber = $accountNumber;
    }
}

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