<?php

namespace App\Services\Reports;

use App\Models\ReportTemplate;
use App\Models\User;
use App\Services\Reports\BuiltIn\DutyDoctorReport;
use App\Services\Reports\BuiltIn\HeadNurseReport;
use App\Services\Reports\Contracts\ReportDefinition;

class ReportRegistry
{
    public function __construct(private readonly ReportSourceRegistry $sources) {}

    /** @return ReportDefinition[] */
    public function all(): array
    {
        $definitions = [
            new DutyDoctorReport($this->sources),
            new HeadNurseReport($this->sources),
        ];

        foreach (ReportTemplate::all() as $template) {
            $definitions[] = new TemplateReportDefinition($template, $this->sources);
        }

        return $definitions;
    }

    /** @return ReportDefinition[] */
    public function availableFor(User $user): array
    {
        return array_values(array_filter(
            $this->all(),
            fn (ReportDefinition $definition) => $this->isVisible($definition, $user)
        ));
    }

    public function find(string $code, User $user): ?ReportDefinition
    {
        foreach ($this->availableFor($user) as $definition) {
            if ($definition->code() === $code) {
                return $definition;
            }
        }

        return null;
    }

    private function isVisible(ReportDefinition $definition, User $user): bool
    {
        $permissions = $definition->requiredPermissions();

        if (empty($permissions)) {
            return $user->currentRoleCan('report.view') || $user->currentRoleCan('nurse.report.view');
        }

        foreach ($permissions as $permission) {
            if ($user->currentRoleCan($permission)) {
                return true;
            }
        }

        return false;
    }
}