<?php

namespace Tests\Feature;

use App\Events\RedPacketClaimed;
use App\Models\Department;
use App\Models\Position;
use App\Models\RedPacketEnvelope;
use App\Models\Sysparam;
use App\Models\User;
use App\Models\UserPosition;
use App\Support\PositionPermissionRegistry;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Event;
use Illuminate\Support\Facades\Redis;
use Tests\TestCase;

/**
 * 类功能：验证礼包红包控制器的发包、领取与状态查询流程
 */
class RedPacketControllerTest extends TestCase
{
    use RefreshDatabase;

    /**
     * 方法功能：初始化红包测试所需的 Redis 与站长等级配置。
     */
    protected function setUp(): void
    {
        parent::setUp();
        Redis::flushall();
        Sysparam::updateOrCreate(['alias' => 'superlevel'], ['body' => '100']);
    }

    /**
     * 方法功能：验证普通用户不能发送礼包。
     */
    public function test_normal_user_cannot_send_red_packet(): void
    {
        $user = User::factory()->create(['user_level' => 10]);

        $response = $this->actingAs($user)->postJson(route('command.red_packet.send'), [
            'room_id' => 1,
            'type' => 'gold',
        ]);

        $response->assertStatus(403);
        $response->assertJson(['status' => 'error']);
    }

    /**
     * 方法功能：验证高等级但无职务权限的用户仍不能发送礼包。
     */
    public function test_high_level_user_without_red_packet_permission_cannot_send_red_packet(): void
    {
        $user = User::factory()->create(['user_level' => 100]);

        $response = $this->actingAs($user)->postJson(route('command.red_packet.send'), [
            'room_id' => 1,
            'type' => 'gold',
        ]);

        $response->assertStatus(403);
    }

    /**
     * 方法功能：验证站长可以成功发出礼包并写入 Redis 拆包结果。
     */
    public function test_superadmin_can_send_red_packet(): void
    {
        $admin = $this->createSiteOwner();

        $response = $this->actingAs($admin)->postJson(route('command.red_packet.send'), [
            'room_id' => 1,
            'type' => 'gold',
        ]);

        $response->assertStatus(200);
        $response->assertJson(['status' => 'success']);

        $this->assertDatabaseHas('red_packet_envelopes', [
            'sender_id' => $admin->id,
            'room_id' => 1,
            'type' => 'gold',
            'status' => 'active',
        ]);

        $envelope = RedPacketEnvelope::first();
        // Check Redis for parts
        $this->assertEquals(10, Redis::llen("red_packet:{$envelope->id}:amounts"));
    }

    /**
     * 方法功能：验证拥有礼包权限的职务用户可以发礼包。
     */
    public function test_position_user_with_red_packet_permission_can_send_red_packet(): void
    {
        $user = $this->createUserWithPermissions([
            PositionPermissionRegistry::ROOM_RED_PACKET,
        ]);

        $response = $this->actingAs($user)->postJson(route('command.red_packet.send'), [
            'room_id' => 1,
            'type' => 'exp',
        ]);

        $response->assertOk()->assertJson([
            'status' => 'success',
        ]);
    }

    /**
     * 方法功能：验证同一房间内不可重复发送未结束的礼包。
     */
    public function test_cannot_send_multiple_active_packets_in_same_room(): void
    {
        $admin = $this->createSiteOwner();

        $this->actingAs($admin)->postJson(route('command.red_packet.send'), [
            'room_id' => 1,
            'type' => 'gold',
        ]);

        $response = $this->actingAs($admin)->postJson(route('command.red_packet.send'), [
            'room_id' => 1,
            'type' => 'gold',
        ]);

        $response->assertStatus(422);
    }

    /**
     * 方法功能：验证用户可以领取礼包并增加金币余额。
     */
    public function test_user_can_claim_red_packet(): void
    {
        $admin = $this->createSiteOwner();
        $user = User::factory()->create(['jjb' => 100]);

        // Send packet
        $this->actingAs($admin)->postJson(route('command.red_packet.send'), [
            'room_id' => 1,
            'type' => 'gold',
        ]);

        $envelope = RedPacketEnvelope::first();

        // Claim packet
        $response = $this->actingAs($user)->postJson(route('red_packet.claim', ['envelopeId' => $envelope->id]), [
            'room_id' => 1,
        ]);

        $response->assertStatus(200);
        $response->assertJson(['status' => 'success']);

        $this->assertDatabaseHas('red_packet_claims', [
            'envelope_id' => $envelope->id,
            'user_id' => $user->id,
        ]);

        // Verify currency incremented
        $this->assertGreaterThan(100, $user->fresh()->jjb);
    }

    /**
     * 方法功能：验证领取成功后会返回并广播最新剩余份数。
     */
    public function test_claim_red_packet_returns_and_broadcasts_remaining_count(): void
    {
        Event::fake([RedPacketClaimed::class]);

        $admin = $this->createSiteOwner();
        $user = User::factory()->create(['jjb' => 100]);

        $this->actingAs($admin)->postJson(route('command.red_packet.send'), [
            'room_id' => 1,
            'type' => 'gold',
        ]);

        $envelope = RedPacketEnvelope::query()->firstOrFail();

        $response = $this->actingAs($user)->postJson(route('red_packet.claim', ['envelopeId' => $envelope->id]), [
            'room_id' => 1,
        ]);

        $response->assertOk();
        $response->assertJson([
            'status' => 'success',
            'remaining_count' => 9,
        ]);

        Event::assertDispatched(RedPacketClaimed::class, function (RedPacketClaimed $event) use ($user, $envelope): bool {
            return $event->claimer->is($user)
                && $event->envelopeId === $envelope->id
                && $event->roomId === 1
                && $event->remainingCount === 9
                && $event->type === 'gold';
        });
    }

    /**
     * 方法功能：验证同一用户不能重复领取同一个礼包。
     */
    public function test_user_cannot_claim_same_packet_twice(): void
    {
        $admin = $this->createSiteOwner();
        $user = User::factory()->create();

        $this->actingAs($admin)->postJson(route('command.red_packet.send'), [
            'room_id' => 1,
            'type' => 'gold',
        ]);

        $envelope = RedPacketEnvelope::first();

        // First claim
        $this->actingAs($user)->postJson(route('red_packet.claim', ['envelopeId' => $envelope->id]), [
            'room_id' => 1,
        ]);

        // Second claim
        $response = $this->actingAs($user)->postJson(route('red_packet.claim', ['envelopeId' => $envelope->id]), [
            'room_id' => 1,
        ]);

        $response->assertStatus(422);
        $response->assertJson(['message' => '您已经领过这个礼包了']);
    }

    /**
     * 方法功能：验证可以查询礼包状态并识别当前用户是否已领取。
     */
    public function test_can_check_packet_status(): void
    {
        $admin = $this->createSiteOwner();
        $user = User::factory()->create();

        $this->actingAs($admin)->postJson(route('command.red_packet.send'), [
            'room_id' => 1,
            'type' => 'gold',
        ]);

        $envelope = RedPacketEnvelope::first();

        $response = $this->actingAs($user)->getJson(route('red_packet.status', ['envelopeId' => $envelope->id]));

        $response->assertStatus(200);
        $response->assertJson([
            'status' => 'success',
            'has_claimed' => false,
            'is_expired' => false,
        ]);

        // Claim it
        $this->actingAs($user)->postJson(route('red_packet.claim', ['envelopeId' => $envelope->id]), [
            'room_id' => 1,
        ]);

        $response2 = $this->actingAs($user)->getJson(route('red_packet.status', ['envelopeId' => $envelope->id]));
        $response2->assertJson([
            'status' => 'success',
            'has_claimed' => true,
        ]);
    }

    /**
     * 创建站长账号。
     */
    private function createSiteOwner(): User
    {
        return User::factory()->create([
            'id' => 1,
            'user_level' => 100,
        ]);
    }

    /**
     * 创建带指定聊天室权限的在职职务用户。
     *
     * @param  list<string>  $permissions
     */
    private function createUserWithPermissions(array $permissions): User
    {
        $user = User::factory()->create([
            'user_level' => 80,
        ]);

        $department = Department::create([
            'name' => '红包权限部'.$user->id,
            'rank' => 80,
            'color' => '#dc2626',
            'sort_order' => 1,
            'description' => '红包权限测试',
        ]);

        $position = Position::create([
            'department_id' => $department->id,
            'name' => '红包权限职务'.$user->id,
            'icon' => '🧧',
            'rank' => 80,
            'level' => 80,
            'sort_order' => 1,
            'permissions' => $permissions,
        ]);

        UserPosition::create([
            'user_id' => $user->id,
            'position_id' => $position->id,
            'appointed_by_user_id' => null,
            'appointed_at' => now(),
            'remark' => '红包权限测试',
            'is_active' => true,
        ]);

        return $user->fresh();
    }
}