<?php

namespace Tests\Unit;

use App\Services\AgentConsumerDelayMonitorService;
use App\Services\ConfigService;
use App\Services\DingTalkService;
use Carbon\CarbonImmutable;
use Illuminate\Database\Connection;
use Illuminate\Database\DatabaseManager;
use Illuminate\Database\Query\Builder;
use Mockery;
use Tests\TestCase;

class AgentConsumerDelayMonitorServiceTest extends TestCase
{
    public function test_it_alerts_when_the_latest_pending_message_is_more_than_five_minutes_old(): void
    {
        CarbonImmutable::setTestNow('2026-09-01 15:00:00');

        try {
            [$database, $query] = $this->mockLatestPendingQuery();
            $dingTalk = Mockery::mock(DingTalkService::class);
            $config = Mockery::mock(ConfigService::class);

            $query->shouldReceive('first')->once()->andReturn((object) [
                'event_name' => 'CASE_CREATE',
                'created' => '2026-09-01 14:52:00',
            ]);
            $config->shouldReceive('get')
                ->once()
                ->with(AgentConsumerDelayMonitorService::STATE_CONFIG_KEY, [])
                ->andReturn([]);
            $dingTalk->shouldReceive('sendText')
                ->once()
                ->with(Mockery::on(fn (string $message) => str_contains($message, 'Agent 消费延迟告警')
                    && str_contains($message, 'CASE_CREATE')
                    && str_contains($message, '14:52:00')
                    && str_contains($message, '8 分钟')))
                ->andReturnTrue();
            $config->shouldReceive('set')
                ->once()
                ->with(
                    AgentConsumerDelayMonitorService::STATE_CONFIG_KEY,
                    ['event_name' => 'CASE_CREATE', 'delayed_since' => '2026-09-01 14:52:00'],
                    'Agent 消费延迟告警状态'
                );

            $result = (new AgentConsumerDelayMonitorService($database, $dingTalk, $config))->check();

            $this->assertSame('CASE_CREATE', $result['event_name']);
            $this->assertSame(8, $result['delay_minutes']);
            $this->assertSame(1, $result['alerted_count']);
            $this->assertSame(0, $result['recovered_count']);
        } finally {
            CarbonImmutable::setTestNow();
        }
    }

    public function test_it_does_not_repeat_an_active_delay_alert(): void
    {
        CarbonImmutable::setTestNow('2026-09-01 15:00:00');

        try {
            [$database, $query] = $this->mockLatestPendingQuery();
            $dingTalk = Mockery::mock(DingTalkService::class);
            $config = Mockery::mock(ConfigService::class);
            $state = ['event_name' => 'CASE_CREATE', 'delayed_since' => '2026-09-01 14:50:00'];

            $query->shouldReceive('first')->once()->andReturn((object) [
                'event_name' => 'DOCTOR_CREATE',
                'created' => '2026-09-01 14:52:00',
            ]);
            $config->shouldReceive('get')
                ->once()
                ->with(AgentConsumerDelayMonitorService::STATE_CONFIG_KEY, [])
                ->andReturn($state);
            $dingTalk->shouldNotReceive('sendText');
            $config->shouldNotReceive('set');

            $result = (new AgentConsumerDelayMonitorService($database, $dingTalk, $config))->check();

            $this->assertSame('DOCTOR_CREATE', $result['event_name']);
            $this->assertSame(0, $result['alerted_count']);
            $this->assertSame(0, $result['recovered_count']);
        } finally {
            CarbonImmutable::setTestNow();
        }
    }

    public function test_it_notifies_recovery_when_the_latest_pending_message_is_within_five_minutes(): void
    {
        CarbonImmutable::setTestNow('2026-09-01 15:00:00');

        try {
            [$database, $query] = $this->mockLatestPendingQuery();
            $dingTalk = Mockery::mock(DingTalkService::class);
            $config = Mockery::mock(ConfigService::class);

            $query->shouldReceive('first')->once()->andReturn((object) [
                'event_name' => 'CASE_CREATE',
                'created' => '2026-09-01 14:57:00',
            ]);
            $config->shouldReceive('get')
                ->once()
                ->with(AgentConsumerDelayMonitorService::STATE_CONFIG_KEY, [])
                ->andReturn(['event_name' => 'CASE_CREATE', 'delayed_since' => '2026-09-01 14:50:00']);
            $dingTalk->shouldReceive('sendText')
                ->once()
                ->with(Mockery::on(fn (string $message) => str_contains($message, 'Agent 消费延迟恢复')))
                ->andReturnTrue();
            $config->shouldReceive('set')
                ->once()
                ->with(AgentConsumerDelayMonitorService::STATE_CONFIG_KEY, [], 'Agent 消费延迟告警状态');

            $result = (new AgentConsumerDelayMonitorService($database, $dingTalk, $config))->check();

            $this->assertSame(0, $result['alerted_count']);
            $this->assertSame(1, $result['recovered_count']);
        } finally {
            CarbonImmutable::setTestNow();
        }
    }

    public function test_it_notifies_recovery_when_there_are_no_pending_messages(): void
    {
        CarbonImmutable::setTestNow('2026-09-01 15:00:00');

        try {
            [$database, $query] = $this->mockLatestPendingQuery();
            $dingTalk = Mockery::mock(DingTalkService::class);
            $config = Mockery::mock(ConfigService::class);

            $query->shouldReceive('first')->once()->andReturnNull();
            $config->shouldReceive('get')
                ->once()
                ->with(AgentConsumerDelayMonitorService::STATE_CONFIG_KEY, [])
                ->andReturn(['event_name' => 'CASE_CREATE', 'delayed_since' => '2026-09-01 14:50:00']);
            $dingTalk->shouldReceive('sendText')->once()->andReturnTrue();
            $config->shouldReceive('set')
                ->once()
                ->with(AgentConsumerDelayMonitorService::STATE_CONFIG_KEY, [], 'Agent 消费延迟告警状态');

            $result = (new AgentConsumerDelayMonitorService($database, $dingTalk, $config))->check();

            $this->assertNull($result['event_name']);
            $this->assertSame(1, $result['recovered_count']);
        } finally {
            CarbonImmutable::setTestNow();
        }
    }

    public function test_it_retries_notifications_when_dingtalk_sending_fails(): void
    {
        CarbonImmutable::setTestNow('2026-09-01 15:00:00');

        try {
            [$database, $query] = $this->mockLatestPendingQuery();
            $dingTalk = Mockery::mock(DingTalkService::class);
            $config = Mockery::mock(ConfigService::class);

            $query->shouldReceive('first')->once()->andReturn((object) [
                'event_name' => 'CASE_CREATE',
                'created' => '2026-09-01 14:50:00',
            ]);
            $config->shouldReceive('get')
                ->once()
                ->with(AgentConsumerDelayMonitorService::STATE_CONFIG_KEY, [])
                ->andReturn([]);
            $dingTalk->shouldReceive('sendText')->once()->andReturnFalse();
            $config->shouldNotReceive('set');

            $result = (new AgentConsumerDelayMonitorService($database, $dingTalk, $config))->check();

            $this->assertSame(0, $result['alerted_count']);
        } finally {
            CarbonImmutable::setTestNow();
        }
    }

    private function mockLatestPendingQuery(): array
    {
        $database = Mockery::mock(DatabaseManager::class);
        $connection = Mockery::mock(Connection::class);
        $query = Mockery::mock(Builder::class);

        $database->shouldReceive('connection')->once()->with('agentslave')->andReturn($connection);
        $connection->shouldReceive('table')->once()->with('crm_event_consumer')->andReturn($query);
        $query->shouldReceive('select')->once()->with(['event_name', 'created'])->andReturnSelf();
        $query->shouldReceive('where')->once()->with('status', '<>', 1)->andReturnSelf();
        $query->shouldReceive('orderByDesc')->once()->with('id')->andReturnSelf();

        return [$database, $query];
    }
}