<?php
declare(strict_types=1);
namespace App\Tests;

use App\Http\Request;
use App\Auth\ArraySessionStore;
use App\Dashboard\FpStatsController;
use App\Tests\Support\InMemoryEventRepository;
use PHPUnit\Framework\TestCase;

final class FpStatsTest extends TestCase
{
    private function sess(?string $site = null): ArraySessionStore
    {
        $s = new ArraySessionStore();
        $s->set('user_id', 1);
        if ($site !== null) $s->set('site_scope', $site);
        return $s;
    }

    private function repo(): InMemoryEventRepository
    {
        $r = new InMemoryEventRepository();
        $now = (float)time();
        // cam-1 zone_warning: 3 events, 2 FP-tagged
        $a = $r->insert(['camera_id' => 'cam-1', 'event_type' => 'zone_warning', 'severity' => 'warning', 'site' => 'a', 'occurred_at' => $now]);
        $b = $r->insert(['camera_id' => 'cam-1', 'event_type' => 'zone_warning', 'severity' => 'warning', 'site' => 'a', 'occurred_at' => $now]);
        $r->insert(['camera_id' => 'cam-1', 'event_type' => 'zone_warning', 'severity' => 'warning', 'site' => 'a', 'occurred_at' => $now]);
        $r->markFalsePositive($a, 'u');
        $r->markFalsePositive($b, 'u');
        // cam-2 fall on another site: 1 event, 1 FP
        $c = $r->insert(['camera_id' => 'cam-2', 'event_type' => 'fall', 'severity' => 'high', 'site' => 'b', 'occurred_at' => $now]);
        $r->markFalsePositive($c, 'u');
        // cam-3: events but no FP tags -> not in the report
        $r->insert(['camera_id' => 'cam-3', 'event_type' => 'fall', 'severity' => 'high', 'site' => 'a', 'occurred_at' => $now]);
        return $r;
    }

    public function testRequiresLogin(): void
    {
        $c = new FpStatsController($this->repo(), new ArraySessionStore());
        $this->assertSame(401, $c->json(new Request('GET', '/api/fp-stats', [], '', [], []))->status());
    }

    public function testAggregatesPerCameraAndType(): void
    {
        $c = new FpStatsController($this->repo(), $this->sess());
        $data = json_decode($c->json(new Request('GET', '/api/fp-stats', [], '', [], []))->body(), true);
        $this->assertSame(30, $data['days']);
        $this->assertCount(2, $data['stats']);   // cam-3 (no FP) excluded
        $this->assertSame(['camera_id' => 'cam-1', 'event_type' => 'zone_warning', 'total' => 3, 'fp' => 2],
            $data['stats'][0]);                   // sorted by fp desc
    }

    public function testSiteScopeFiltersStats(): void
    {
        $c = new FpStatsController($this->repo(), $this->sess('a'));
        $data = json_decode($c->json(new Request('GET', '/api/fp-stats', [], '', [], []))->body(), true);
        $this->assertCount(1, $data['stats']);
        $this->assertSame('cam-1', $data['stats'][0]['camera_id']);
    }
}