<?php

namespace App\Services\Approval;

use App\Models\Approval;
use App\Models\Enums\ApprovalObjectType;
use App\Models\Enums\ObjectAction;
use App\Models\Enums\ObjectApprovalStatus;
use App\Repositories\ActionRepository;

class ActionService
{
    protected ?Approval $approval = null;

    public function action(Approval $approval, int $status, string $comment = null): void
    {
        $this->approval = $approval;

        match($status) {
            1 => $this->approved(),
            default => $this->rejected(),
        };

        $this->triggerAction($comment);

        $this->changeApprovalObjectStatus();

        $this->changeApprovalStatus();
    }

    protected function changeApprovalStatus(): void
    {
        $this->approval->save();
    }

    protected function changeApprovalObjectStatus(): void
    {
        $object = ApprovalObjectType::from($this->approval->object_type)
            ->modelBuilder()
            ->findOrFail($this->approval->object_id);

        $object->approval_status = $this->approval->status;
        $object->save();
    }

    protected function triggerAction (string $comment = null): void
    {
        $objectAction = match ($this->approval->status) {
            ObjectApprovalStatus::APPROVED->value => ObjectAction::APPROVAL_APPROVED,
            ObjectApprovalStatus::DOING->value => ObjectAction::APPROVED_TO_NEXT_NODE,
            ObjectApprovalStatus::REJECTED->value => ObjectAction::APPROVAL_REJECTED,
        };

        ActionRepository::createByApproval(
            $this->approval,
            $objectAction,
            $comment
        );
    }

    protected function approved(): void
    {
        $approvalFlowNodes = $this->approval->approvalFlow?->nodes;
        $nextNodeIndex = $this->approval->node_level + 1;
        $nextNodes = $approvalFlowNodes[$nextNodeIndex] ?? [];

        if (! $nextNodes) {
            $this->approval->status = ObjectApprovalStatus::APPROVED->value;
            return;
        }

        $this->approval->node_level = $nextNodeIndex;
        $this->approval->users = sprintf(",%s,", implode(',', $nextNodes['approval_users']));
    }

    protected function rejected(): void
    {
        $this->approval->status = ObjectApprovalStatus::REJECTED->value;
    }
}