<?php

namespace Modules\HRM\Repositories;

use App\Abstracts\EntityRepository;
use Exception;
use Illuminate\Contracts\Pagination\Paginator;
use Illuminate\Database\Eloquent\Builder as EloquentBuilder;
use Illuminate\Database\Query\Builder;
use Illuminate\Support\Facades\Hash;
use Modules\HRM\Models\Employee;
use Symfony\Component\HttpFoundation\Response;

class EmployeeRepository extends EntityRepository
{
    public string $table = Employee::TABLE_NAME;

    protected array $fillableColumns = [
        'restaurant_id',
        'first_name',
        'last_name',
        'username',
        'email',
        'phone',
        'password',
        'otp_code',
        'isVerified',
        'email_verified_at',
        'address',
        'avatar',
        'role_id',
        'user_type',
        'facebook',
        'twitter',
        'linkedin',
        'google_plus',
        'nid',
        'platform',
        'device_info',
        'last_active_time',
        'status',
        'department_id',
        'designation_id',
        'salary_type_id',
        'address',
        'gender',
        'date_of_birth',
        'joining_date',
        'basic_salary',
        'created_by',
        'deleted_at',
    ];

    protected function getQuery(): Builder
    {
        return parent::getQuery();
    }

    public function getAll(array $filterData = []): Paginator
    {
        $filter = $this->getFilterData($filterData);
        $query = $this->getUserQuery();

        if (! $filter['with_deleted']) {
            $query->whereNull("{$this->table}.deleted_at");
        }

        if (isset($filter['search']) && strlen($filter['search']) > 0) {
            $query = $this->filterSearchQuery($query, $filter['search']);
        }

        return $query
            ->orderBy($filter['orderBy'], $filter['order'])
            ->paginate($filter['perPage']);
    }

    protected function getFilterData(array $filterData = []): array
    {
        $defaultArgs = [
            'perPage' => 10,
            'search' => '',
            'orderBy' => 'id',
            'order' => 'desc',
            'with_deleted' => false,
        ];

        return array_merge($defaultArgs, $filterData);
    }

    private function getUserQuery(): Builder
    {
        return $this->getQuery()
            ->leftJoin('departments', "{$this->table}.department_id", '=', 'departments.id')
            ->leftJoin('designations', "{$this->table}.designation_id", '=', 'designations.id')
            ->select(
                'users.id',
                'users.restaurant_id',
                "{$this->table}.department_id",
                'departments.name as department_name',   // join department
                "{$this->table}.designation_id",
                'designations.title as designation_title', // join designation
                'users.first_name',
                'users.last_name',
                'users.username',
                'users.email',
                'users.phone',
                'users.isVerified',
                'users.email_verified_at',
                'users.address',
                'users.avatar',
                'users.role_id',
                'users.user_type',
                'users.facebook',
                'users.twitter',
                'users.linkedin',
                'users.google_plus',
                'users.nid',
                'users.platform',
                'users.device_info',
                'users.last_active_time',
                'users.status',
                'users.department_id',
                'users.designation_id',
                'users.salary_type_id',
                'users.address',
                'users.gender',
                'users.date_of_birth',
                'users.joining_date',
                'users.basic_salary',
                'users.created_by',
                'users.deleted_at'
            );
    }

    protected function filterSearchQuery(Builder|EloquentBuilder $query, string $searchedText): Builder
    {
        $searchable = "%$searchedText%";

        return $query->where('users.first_name', 'LIKE', $searchable)
            ->orWhere('users.last_name', 'LIKE', $searchable)
            ->orWhere('users.email', 'LIKE', $searchable)
            ->orWhere('users.phone', 'LIKE', $searchable)
            ->orWhere('users.status', 'LIKE', $searchable);
    }

    /**
     * @throws Exception
     */
    public function getByColumn(string $columnName, $columnValue, array $selects = ['*']): ?object
    {
        $user = $this->getUserQuery()
            ->where($columnName, $columnValue)
            ->first();

        if (empty($user)) {
            throw new Exception(
                $this->getExceptionMessage(static::MESSAGE_ITEM_DOES_NOT_EXIST_MESSAGE),
                Response::HTTP_NOT_FOUND
            );
        }

        return $user;
    }

    public function getCount(array $filterData = []): int
    {
        $filter = $this->getFilterData($filterData);

        $query = $this->getQuery();

        if (! $filter['with_deleted']) {
            $query->whereNull("{$this->table}.deleted_at");
        }

        return $query->count();
    }

    /**
     * @throws Exception
     */
    public function create(array $data): object
    {
        try {
            $data['password'] = empty($data['password']) ? '123456' : $data['password'];
            $data = $this->prepareForDB($data);
            $userId = $this->getQuery()->insertGetId($data);
            $user = Employee::find($userId);

            return $user;
        } catch (Exception $exception) {
            throw new Exception($exception->getMessage(), Response::HTTP_INTERNAL_SERVER_ERROR);
        }
    }

    /**
     * @throws Exception
     */
    public function prepareForDB(array $data, ?object $item = null): array
    {
        $data = parent::prepareForDB($data, $item);
        if (empty($item)) {
            $data['created_at'] = now();
            $data['created_by'] = $this->getCurrentUserId();
            $data['restaurant_id'] = $this->getCurrentRestaurantId();
            $data['status'] = 1;
            if (! empty($data['avatar']) && $data['avatar'] instanceof \Illuminate\Http\UploadedFile) {
                $data['avatar'] = fileUploader('users/', 'png', $data['avatar']);
            }
        } else {
            if (! empty($data['avatar']) && $data['avatar'] instanceof \Illuminate\Http\UploadedFile) {
                $data['avatar'] = fileUploader('users/', 'png', $data['avatar'], $item->avatar);
            }
            $data['updated_at'] = now();
        }

        if (! empty($data['password'])) {
            $data['password'] = Hash::make($data['password']);
        } else {
            unset($data['password']);
        }

        return $data;
    }

    /**
     * @throws Exception
     */
    public function update(int $id, array $data): ?object
    {
        try {
            $user = Employee::find($id);
            $data = $this->prepareForDB($data, $user);
            parent::update($id, $data);

            return $this->getById($user->id);
        } catch (Exception $exception) {
            throw new Exception($exception->getMessage(), Response::HTTP_INTERNAL_SERVER_ERROR);
        }
    }

    /**
     * @throws Exception
     */
    public function getDropdown(): array
    {
        $dropdowns = parent::getDropdown();
        $dropdownsData = [];
        foreach ($dropdowns as $dropdownItem) {
            $dropdownItem->name = $dropdownItem->first_name.' '.$dropdownItem->last_name.' #'.$dropdownItem->id;
            unset($dropdownItem->first_name, $dropdownItem->last_name, $dropdownItem->phone);
            $dropdownsData[] = $dropdownItem;
        }

        return $dropdownsData;
    }

    protected function getExceptionMessages(): array
    {
        $exceptionMessages = parent::getExceptionMessages();

        $userExceptionMessages = [
            static::MESSAGE_ITEM_DOES_NOT_EXIST_MESSAGE => 'Employee does not exist.',
            static::MESSAGE_ITEM_COULD_NOT_BE_DELETED => 'Employee could not be deleted.',
        ];

        return array_merge($exceptionMessages, $userExceptionMessages);
    }

    protected function getDropdownSelectableColumns(): array
    {
        return [
            'first_name',
            'last_name',
        ];
    }

    protected function getOrderByColumnWithOrders(): array
    {
        return [
            'first_name' => 'asc',
        ];
    }
}