<?php

declare(strict_types=1);

namespace App\Http\Requests\Back\Users\Concerns;

use Uwil\LaravelBackend\Support\UserRoleRegistry;

/**
 * Shared validation rules for user requests.
 */
trait HasUserRequestRules
{
    /**
     * Resolve role flags from the current request input.
     *
     * @return array{isClient:bool,isProjectManager:bool,isDevelopper:bool}
     */
    private function resolveRoleFlags(): array
    {
        $role = $this->input('role');

        return [
            'isClient'         => $role === UserRoleRegistry::get('client')->value,
            'isProjectManager' => $role === UserRoleRegistry::get('project-manager')->value,
            'isDevelopper'     => $role === UserRoleRegistry::get('developper')->value,
            'isConceptor'      => $role === UserRoleRegistry::get('conceptor')->value,
        ];
    }

    /**
     * Prepare the data for validation.
     */
    protected function extraPrepareForValidation(): void
    {
        [
            'isClient'         => $isClient,
            'isProjectManager' => $isProjectManager,
            'isDevelopper'     => $isDevelopper,
            'isConceptor'      => $isConceptor,
        ] = $this->resolveRoleFlags();
        $userRole = auth('backend')->user()->role->value === $isConceptor;

        if ($userRole && ($isProjectManager || $isDevelopper)) {
            $this->merge([
                'gitlab_id' => $this->input('gitlab_id'),
            ]);
        }
        if ($isClient) {
            $this->merge([
                'sites' => $this->input('sites'),
            ]);
        }
    }

    /**
     * Get the extra validation rules.
     *
     * @return array<string,mixed>
     */
    protected function extraRules(): array
    {
        [
            'isClient'         => $isClient,
            'isProjectManager' => $isProjectManager,
            'isDevelopper'     => $isDevelopper,
            'isConceptor'      => $isConceptor,
        ] = $this->resolveRoleFlags();
        $userRole = auth('backend')->user()->role->value === $isConceptor;

        return [
            'gitlab_id' => $userRole && ($isProjectManager || $isDevelopper)
                ? 'required|integer|min:1'
                : 'nullable|integer|min:1',
            'sites'     => $userRole && $isClient ? 'required|array' : 'nullable|array',
            'sites.*'   => 'integer|exists:sites,id|distinct',
        ];
    }

    /**
     * Get the extra attributes.
     *
     * @return array<string,string>
     */
    protected function extraAttributes(): array
    {
        return [
            'gitlab_id' => trans('validation.custom.gitlab_id'),
            'sites'     => trans_choice('models.classes.sites', \INF),
        ];
    }
}