<?php

namespace App\DAL\Studies;

use App\Models\Enums\ReportStatus;
use Illuminate\Contracts\Database\Eloquent\Builder;
use Illuminate\Contracts\Pagination\LengthAwarePaginator;

abstract class WorklistBase implements IUserStudyLister
{
    private ?int $pageSize = null;

    private ?string $sortColumn = null;

    private ?string $sortDir = null;

    private ?string $searchTerm = null;

    protected static function reportCompleteQuery(Builder $query): Builder
    {
        return $query->where('report_status', '=', ReportStatus::Signed->value);
    }

    protected function applySortQuery(Builder $query): Builder
    {
        if ($this->sortColumn) {
            return $query->orderBy($this->sortColumn, $this->sortDir ?? 'ASC');
        }

        return $query
            ->orderByDesc('study_priority')
            ->orderByDesc('received_at');
    }

    protected static function reportPendingQuery(Builder $query): Builder
    {
        return $query->where('report_status', '<', ReportStatus::Finalized->value);
    }

    abstract protected function buildQuery(?int $user_id = null): Builder;

    public function all(?int $user_id = null): LengthAwarePaginator
    {
        return $this->buildQuery($user_id)
            ->paginate($this->getPageSize($user_id));
    }

    public function pending(?int $user_id = null): LengthAwarePaginator
    {
        return self::reportPendingQuery(self::buildQuery($user_id))
            ->paginate($this->getPageSize($user_id));
    }

    public function completed(?int $user_id = null): LengthAwarePaginator
    {
        return self::reportCompleteQuery(self::buildQuery($user_id))
            ->paginate($this->getPageSize($user_id));
    }

    public function setPageSize(int $size): void
    {
        $this->pageSize = $size;
    }

    public function setSortColumn(string $column, string $dir): void
    {
        $this->sortColumn = $column;
        $this->sortDir = $dir;
    }

    public function setSearchTerm(string $search): void
    {
        $this->searchTerm = $search;
    }

    public function getPageSize(?int $user_id = null): int
    {
        return $this->pageSize ?? $this->getPageSize($user_id);
    }

    public function applySearch(Builder $query): Builder
    {
        if ($this->searchTerm) {
            $search = "%{$this->searchTerm}%";
            $query = $query->where(function ($query) use ($search) {
                $query->orWhere('patient_name', 'like', $search);
                $query->orWhere('patient_id', 'like', $search);
                $query->orWhere('study_description', 'like', $search);
                $query->orWhere('body_part_examined', 'like', $search);
            });
        }

        return $query;
    }
}