<?php

namespace Tests\Unit;

use App\Models\Member;
use App\Models\User;
use App\Models\MembershipPayment;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Tests\TestCase;

class MemberTest extends TestCase
{
    use RefreshDatabase;

    protected function setUp(): void
    {
        parent::setUp();
        $this->artisan('db:seed', ['--class' => 'RoleSeeder']);
    }

    public function test_member_has_required_fillable_fields(): void
    {
        $member = Member::factory()->create([
            'full_name' => 'Test Member',
            'email' => 'test@example.com',
            'phone' => '0912345678',
        ]);

        $this->assertEquals('Test Member', $member->full_name);
        $this->assertEquals('test@example.com', $member->email);
        $this->assertEquals('0912345678', $member->phone);
    }

    public function test_member_belongs_to_user(): void
    {
        $user = User::factory()->create();
        $member = Member::factory()->create(['user_id' => $user->id]);

        $this->assertInstanceOf(User::class, $member->user);
        $this->assertEquals($user->id, $member->user->id);
    }

    public function test_member_has_many_payments(): void
    {
        $member = Member::factory()->create();
        $payment1 = MembershipPayment::factory()->create(['member_id' => $member->id]);
        $payment2 = MembershipPayment::factory()->create(['member_id' => $member->id]);

        $this->assertCount(2, $member->payments);
        $this->assertTrue($member->payments->contains($payment1));
        $this->assertTrue($member->payments->contains($payment2));
    }

    public function test_has_paid_membership_returns_true_when_active_with_future_expiry(): void
    {
        $member = Member::factory()->create([
            'membership_status' => Member::STATUS_ACTIVE,
            'membership_started_at' => now()->subMonth(),
            'membership_expires_at' => now()->addYear(),
        ]);

        $this->assertTrue($member->hasPaidMembership());
    }

    public function test_has_paid_membership_returns_false_when_pending(): void
    {
        $member = Member::factory()->create([
            'membership_status' => Member::STATUS_PENDING,
            'membership_started_at' => null,
            'membership_expires_at' => null,
        ]);

        $this->assertFalse($member->hasPaidMembership());
    }

    public function test_has_paid_membership_returns_false_when_expired(): void
    {
        $member = Member::factory()->create([
            'membership_status' => Member::STATUS_ACTIVE,
            'membership_started_at' => now()->subYear()->subMonth(),
            'membership_expires_at' => now()->subMonth(),
        ]);

        $this->assertFalse($member->hasPaidMembership());
    }

    public function test_has_paid_membership_returns_false_when_suspended(): void
    {
        $member = Member::factory()->create([
            'membership_status' => Member::STATUS_SUSPENDED,
            'membership_started_at' => now()->subMonth(),
            'membership_expires_at' => now()->addYear(),
        ]);

        $this->assertFalse($member->hasPaidMembership());
    }

    public function test_can_submit_payment_returns_true_when_pending_and_no_pending_payment(): void
    {
        $member = Member::factory()->create([
            'membership_status' => Member::STATUS_PENDING,
        ]);

        $this->assertTrue($member->canSubmitPayment());
    }

    public function test_can_submit_payment_returns_false_when_already_has_pending_payment(): void
    {
        $member = Member::factory()->create([
            'membership_status' => Member::STATUS_PENDING,
        ]);

        MembershipPayment::factory()->create([
            'member_id' => $member->id,
            'status' => MembershipPayment::STATUS_PENDING,
        ]);

        $this->assertFalse($member->canSubmitPayment());
    }

    public function test_can_submit_payment_returns_false_when_active(): void
    {
        $member = Member::factory()->create([
            'membership_status' => Member::STATUS_ACTIVE,
        ]);

        $this->assertFalse($member->canSubmitPayment());
    }

    public function test_get_pending_payment_returns_pending_payment(): void
    {
        $member = Member::factory()->create();

        $pendingPayment = MembershipPayment::factory()->create([
            'member_id' => $member->id,
            'status' => MembershipPayment::STATUS_PENDING,
        ]);

        $approvedPayment = MembershipPayment::factory()->create([
            'member_id' => $member->id,
            'status' => MembershipPayment::STATUS_APPROVED_CHAIR,
        ]);

        $result = $member->getPendingPayment();

        $this->assertNotNull($result);
        $this->assertEquals($pendingPayment->id, $result->id);
    }

    public function test_get_pending_payment_returns_null_when_no_pending_payments(): void
    {
        $member = Member::factory()->create();

        MembershipPayment::factory()->create([
            'member_id' => $member->id,
            'status' => MembershipPayment::STATUS_APPROVED_CHAIR,
        ]);

        $this->assertNull($member->getPendingPayment());
    }

    public function test_national_id_encryption_and_decryption(): void
    {
        $member = Member::factory()->create([
            'full_name' => 'Test Member',
        ]);

        $nationalId = 'A123456789';
        $member->national_id = $nationalId;
        $member->save();

        // Refresh from database
        $member->refresh();

        // Check encrypted value is different from plain text
        $this->assertNotEquals($nationalId, $member->national_id_encrypted);

        // Check decryption works
        $this->assertEquals($nationalId, $member->national_id);
    }

    public function test_national_id_hash_created_for_search(): void
    {
        $member = Member::factory()->create();
        $nationalId = 'A123456789';

        $member->national_id = $nationalId;
        $member->save();

        $member->refresh();

        // Check hash was created
        $this->assertNotNull($member->national_id_hash);

        // Check hash matches SHA256
        $expectedHash = hash('sha256', $nationalId);
        $this->assertEquals($expectedHash, $member->national_id_hash);
    }

    public function test_is_pending_returns_true_when_status_is_pending(): void
    {
        $member = Member::factory()->create(['membership_status' => Member::STATUS_PENDING]);
        $this->assertTrue($member->isPending());
    }

    public function test_is_active_returns_true_when_status_is_active(): void
    {
        $member = Member::factory()->create(['membership_status' => Member::STATUS_ACTIVE]);
        $this->assertTrue($member->isActive());
    }

    public function test_is_expired_returns_true_when_status_is_expired(): void
    {
        $member = Member::factory()->create(['membership_status' => Member::STATUS_EXPIRED]);
        $this->assertTrue($member->isExpired());
    }

    public function test_is_suspended_returns_true_when_status_is_suspended(): void
    {
        $member = Member::factory()->create(['membership_status' => Member::STATUS_SUSPENDED]);
        $this->assertTrue($member->isSuspended());
    }

    public function test_membership_status_label_returns_chinese_text(): void
    {
        $member = Member::factory()->create(['membership_status' => Member::STATUS_PENDING]);
        $this->assertEquals('待繳費', $member->membership_status_label);

        $member->membership_status = Member::STATUS_ACTIVE;
        $this->assertEquals('已啟用', $member->membership_status_label);

        $member->membership_status = Member::STATUS_EXPIRED;
        $this->assertEquals('已過期', $member->membership_status_label);

        $member->membership_status = Member::STATUS_SUSPENDED;
        $this->assertEquals('已暫停', $member->membership_status_label);
    }

    public function test_membership_type_label_returns_chinese_text(): void
    {
        $member = Member::factory()->create(['membership_type' => Member::TYPE_REGULAR]);
        $this->assertEquals('一般會員', $member->membership_type_label);

        $member->membership_type = Member::TYPE_STUDENT;
        $this->assertEquals('學生會員', $member->membership_type_label);

        $member->membership_type = Member::TYPE_HONORARY;
        $this->assertEquals('榮譽會員', $member->membership_type_label);

        $member->membership_type = Member::TYPE_LIFETIME;
        $this->assertEquals('終身會員', $member->membership_type_label);
    }

    public function test_membership_status_badge_returns_correct_css_class(): void
    {
        $member = Member::factory()->create(['membership_status' => Member::STATUS_PENDING]);
        $badge = $member->membership_status_badge;

        $this->assertStringContainsString('待繳費', $badge);
        $this->assertStringContainsString('bg-yellow', $badge);

        $member->membership_status = Member::STATUS_ACTIVE;
        $badge = $member->membership_status_badge;
        $this->assertStringContainsString('bg-green', $badge);
    }
}