<?php

namespace App\Policies;

use App\Models\Submission;
use App\Models\User;

class SubmissionPolicy
{
    /** Perunding hanya boleh lihat serahan miliknya; kakitangan JPP lihat semua. */
    public function view(User $user, Submission $submission): bool
    {
        if ($user->can('serahan.lihat_semua')) {
            return true;
        }

        return $this->ownsSubmission($user, $submission);
    }

    public function viewAny(User $user): bool
    {
        return $user->can('serahan.lihat_semua') || $user->can('serahan.urus_sendiri');
    }

    /** Hanya perunding boleh cipta serahan untuk pusat data yang ditugaskan. */
    public function create(User $user): bool
    {
        return $user->can('serahan.urus_sendiri');
    }

    /** Perunding boleh kemaskini selagi miliknya, belum dikunci & belum selesai. */
    public function update(User $user, Submission $submission): bool
    {
        if (! $user->can('serahan.urus_sendiri')) {
            return false;
        }

        return $this->ownsSubmission($user, $submission) && $submission->isEditableByConsultant();
    }

    /** Pegawai JPP menyemak serahan. */
    public function review(User $user, Submission $submission): bool
    {
        return $user->can('serahan.semak');
    }

    public function lock(User $user, Submission $submission): bool
    {
        return $user->can('serahan.kunci');
    }

    public function markHardcopy(User $user, Submission $submission): bool
    {
        return $user->can('serahan.hardcopy');
    }

    /** Perunding boleh jawab permohonan pembetulan untuk serahan miliknya. */
    public function respondCorrection(User $user, Submission $submission): bool
    {
        return $user->can('serahan.urus_sendiri')
            && $this->ownsSubmission($user, $submission)
            && $submission->status === 'pembetulan_perunding';
    }

    public function comment(User $user, Submission $submission): bool
    {
        if (! $user->can('komen.cipta')) {
            return false;
        }

        return $user->can('serahan.lihat_semua') || $this->ownsSubmission($user, $submission);
    }

    protected function ownsSubmission(User $user, Submission $submission): bool
    {
        $consultantId = $user->consultant?->id;

        return $consultantId !== null && (int) $submission->consultant_id === (int) $consultantId;
    }
}