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<?php

namespace App\Http\Requests;

use App\Traits\CheckRequestPermission;
use App\Traits\RouteValidation;
use Dingo\Api\Http\FormRequest;

class StoreMeetingCaseApprovalRequest extends FormRequest
{
    use RouteValidation;
    use CheckRequestPermission;

    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        //check role

        $current_user = $this->getCurrentUser();
        $user_role_code = $current_user->role_code;

        $role_code = 'approval_committee';
        $check_role_permission = $this->checkRolePermission($role_code, $user_role_code);

        if (!$check_role_permission) {
            return false;
        }

        //check is chairman / chairperson

        $meeting_id = $this->meeting_id;
        $approval_committee_id = $current_user->user_id;

        $is_chairperson = $this->checkIsChairperson($meeting_id, $approval_committee_id);

        if (!$is_chairperson) {
            return false;
        }

        //check if approval cannot be edited anymore

        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'meeting_case_id' => 'required|integer|exists:meeting_case,id|unique:meeting_case_approval,meeting_case_id',
            'approval_committee_id' => 'required|integer|exists:user,id',
            'status_id' => 'required|integer|exists:status,id'
        ];
    }

    public function messages()
    {
        return [
            'meeting_case_id.unique' => 'Approval for this Meeting Case already exist',
        ];
    }


}

<?php namespace App\Traits;

trait RouteValidation {

    /**
     * Add route parameters to form request class to be validated
     * This trait cannot be used with Model Route Binding & Mass Assigned together as it will create unknow column on database insert
     * @return array
     */
    public function all()
    {
        return array_replace_recursive(
            parent::all(),
            $this->route()->parameters()
        );
    }

}

<?php namespace App\Traits;

use App\MeetingApprovalCommittee;
use App\Role;

trait CheckRequestPermission {

    /**
     * Check role permission to form request class to be validated
     *
     * @return boolean
     */
    public function checkRolePermission($permission_role_code, $user_role_code)
    {
        if ($user_role_code != $permission_role_code) {
            return false;
        }

        return true;

    }

    public function checkIsChairperson($meeting_id, $user_id)
    {
        $meeting_approval_committee = MeetingApprovalCommittee::whereMeetingId($meeting_id)->whereApprovalCommitteeId($user_id)->whereIsChairperson(1)->first();

        if (!$meeting_approval_committee) {
            return false;
        }

        return true;
    }

    public function getCurrentUser()
    {
        $current_user = auth()->user();
        $user_role_id = $current_user->role_id;

        $role = Role::find($user_role_id);
        $user_role_code = $role->slug;

        $user_role = [
            'user_id'=>$current_user->id,
            'role_id'=>$user_role_id,
            'role_code'=>$user_role_code
        ];

        $user_role = (object)$user_role;

        return $user_role;
    }
}