<?php

namespace Tests\Unit;

use App\Models\ObatMasuk;
use Carbon\Carbon;
use Tests\TestCase;

class ObatMasukModelTest extends TestCase
{
    // ─────────────────────────────────────────
    // getSisaHariAttribute()
    // ─────────────────────────────────────────

    public function test_sisa_hari_is_positive_for_future_expiry(): void
    {
        $obat = new ObatMasuk();
        $obat->tanggal_kadaluarsa = Carbon::now()->addDays(30)->toDateString();

        // Cast manually to trigger accessor
        $obat->setRawAttributes(['tanggal_kadaluarsa' => Carbon::now()->addDays(30)->toDateString()]);

        $this->assertGreaterThan(0, $obat->sisa_hari);
    }

    public function test_sisa_hari_is_negative_for_past_expiry(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['tanggal_kadaluarsa' => Carbon::now()->subDays(5)->toDateString()]);

        $this->assertLessThan(0, $obat->sisa_hari);
    }

    public function test_sisa_hari_is_zero_or_very_small_for_today_expiry(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['tanggal_kadaluarsa' => Carbon::now()->toDateString()]);

        // Bisa 0 atau 1 tergantung waktu persis
        $this->assertLessThanOrEqual(1, abs($obat->sisa_hari));
    }

    // ─────────────────────────────────────────
    // getStatusKadaluarsaAttribute()
    // ─────────────────────────────────────────

    public function test_status_kadaluarsa_is_kritis_when_less_than_or_equal_30_days(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['tanggal_kadaluarsa' => Carbon::now()->addDays(25)->toDateString()]);

        $this->assertEquals('kritis', $obat->status_kadaluarsa);
    }

    public function test_status_kadaluarsa_is_kritis_when_already_expired(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['tanggal_kadaluarsa' => Carbon::now()->subDays(1)->toDateString()]);

        $this->assertEquals('kritis', $obat->status_kadaluarsa);
    }

    public function test_status_kadaluarsa_is_kritis_when_exactly_30_days(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['tanggal_kadaluarsa' => Carbon::now()->addDays(30)->toDateString()]);

        $this->assertEquals('kritis', $obat->status_kadaluarsa);
    }

    public function test_status_kadaluarsa_is_waspada_when_between_31_and_60_days(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['tanggal_kadaluarsa' => Carbon::now()->addDays(45)->toDateString()]);

        $this->assertEquals('waspada', $obat->status_kadaluarsa);
    }

    public function test_status_kadaluarsa_is_aman_when_more_than_60_days(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['tanggal_kadaluarsa' => Carbon::now()->addDays(90)->toDateString()]);

        $this->assertEquals('aman', $obat->status_kadaluarsa);
    }

    public function test_status_kadaluarsa_is_aman_when_more_than_60_days_away(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['tanggal_kadaluarsa' => Carbon::now()->addDays(65)->toDateString()]);

        $this->assertEquals('aman', $obat->status_kadaluarsa);
    }

    // ─────────────────────────────────────────
    // getStatusStokAttribute()
    // ─────────────────────────────────────────

    public function test_status_stok_is_tersedia_when_stok_greater_than_zero(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['stok' => 10]);

        $this->assertEquals('tersedia', $obat->status_stok);
    }

    public function test_status_stok_is_habis_when_stok_is_zero(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['stok' => 0]);

        $this->assertEquals('habis', $obat->status_stok);
    }

    public function test_status_stok_is_tersedia_when_stok_is_one(): void
    {
        $obat = new ObatMasuk();
        $obat->setRawAttributes(['stok' => 1]);

        $this->assertEquals('tersedia', $obat->status_stok);
    }

    // ─────────────────────────────────────────
    // Fillable & Casts
    // ─────────────────────────────────────────

    public function test_obat_masuk_has_correct_fillable_fields(): void
    {
        $obat = new ObatMasuk();
        $this->assertContains('nama_obat', $obat->getFillable());
        $this->assertContains('kode_batch', $obat->getFillable());
        $this->assertContains('stok', $obat->getFillable());
        $this->assertContains('tanggal_kadaluarsa', $obat->getFillable());
    }

    public function test_tanggal_columns_are_cast_as_date(): void
    {
        $obat = new ObatMasuk();
        $casts = $obat->getCasts();
        $this->assertEquals('date', $casts['tanggal_penerimaan']);
        $this->assertEquals('date', $casts['tanggal_kadaluarsa']);
    }
}