autocde2.0/app/Http/Requests/API/Task/CreateOrUpdateRequest.php

<?php

namespace App\Http\Requests\API\Task;

use App\Http\Requests\CustomFieldRuleHelper;
use App\Http\Requests\NamingRuleHelper;
use App\Http\Requests\RuleHelper;
use App\Models\Enums\TaskACL;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Facades\Auth;
use Illuminate\Validation\Rule;
use Illuminate\Validation\Rules\Enum;

class CreateOrUpdateRequest extends FormRequest
{
    use RuleHelper, CustomFieldRuleHelper, NamingRuleHelper;

    /**
     * Determine if the user is authorized to make this request.
     */
    public function authorize(): bool
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
     */
    public function rules(): array
    {
        $rules =  [
            'project_id' => [
                'required',
                Rule::exists('projects', 'id')->where($this->userCompanyWhere()),
            ],
            'requirement_id' => [
                Rule::exists('requirements', 'id')->where($this->userCompanyWhere()),
            ],
            'naming_rule_id' => [
                Rule::when($this->get('naming_rule_id') > 0, [
                    Rule::exists('naming_rules', 'id')->whereIn('company_id', [
                        0, Auth::user()->company_id,
                    ]),
                ])
            ],
            'assign' => [
                Rule::exists('users', 'id')->where($this->userCompanyWhere()),
            ],
            'name' => 'required|max:255',
            'parent_id' => [
                Rule::when($this->get('parent_id') > 0, [
                    Rule::exists('tasks', 'id')->where($this->userCompanyWhere())->where("parent_id", 0),
                ])
            ],
            'begin' => 'date',
            'end' => 'date',
            'acl' => [
                new Enum(TaskACL::class),
            ],
            'whitelist' => $this->usersCompanyRules(),
            'mailto' => $this->usersCompanyRules(),
        ];

        $taskRules = $this->customFieldRuleByGroup("task", ['doc_type', 'task_type', 'doc_stage', "state", "suitability"]);

        if ($this->has("naming_rule_id") && $this->get("naming_rule_id") > 0) {
            $this->namingRuleCheck($this->get("naming_rule_id"));

            $namingRules = $this->customFieldRuleByGroup($this->get("naming_rule_id"));

            $rules = [...$rules, ... $namingRules];
        }

        return [...$rules, ...$taskRules];
    }
}