<?php
declare(strict_types=1);
namespace App\Tests;
use App\Http\Request;
use App\Auth\ArraySessionStore;
use App\Geometry\Polygon;
use App\Dashboard\ZoneConfigController;
use App\Tests\Support\{InMemoryZoneRepository, InMemoryAuditRepository};
use PHPUnit\Framework\TestCase;

final class ZoneConfigTest extends TestCase
{
    private function authed(string $role = 'operator'): ArraySessionStore {
        $s = new ArraySessionStore(); $s->set('user_id', 1); $s->set('username', 'u'); $s->set('role', $role); $s->set('csrf', 'tok'); return $s;
    }
    public function testPolygonValidation(): void {
        $this->assertTrue(Polygon::validate([[0,0],[10,0],[10,10]]));
        $this->assertFalse(Polygon::validate([[0,0],[10,0]])); // <3
        $this->assertFalse(Polygon::validate([[0,0],[10,0],['x',10]])); // non-numeric
    }
    private function saveReq(array $body, array $headers = ['X-Csrf-Token' => 'tok']): Request {
        return new Request('POST', '/api/zones', $headers, json_encode($body), [], []);
    }
    public function testSaveRequiresPermission(): void {
        $c = new ZoneConfigController(new InMemoryZoneRepository(), new InMemoryAuditRepository(), $this->authed('viewer'));
        $res = $c->save($this->saveReq(['camera_id' => 'cam-1', 'level' => 'restricted', 'polygon' => [[0,0],[9,0],[9,9]]]));
        $this->assertSame(403, $res->status());
    }
    public function testSaveValidZone(): void {
        $repo = new InMemoryZoneRepository();
        $c = new ZoneConfigController($repo, new InMemoryAuditRepository(), $this->authed('operator'));
        $res = $c->save($this->saveReq(['device_id' => 'pi-1', 'camera_id' => 'cam-1', 'level' => 'restricted', 'polygon' => [[0,0],[9,0],[9,9]]]));
        $this->assertSame(201, $res->status());
        $this->assertCount(1, $repo->forCamera('cam-1'));
    }
    public function testSaveRejectsBadLevelOrPolygon(): void {
        $c = new ZoneConfigController(new InMemoryZoneRepository(), new InMemoryAuditRepository(), $this->authed('operator'));
        $this->assertSame(400, $c->save($this->saveReq(['camera_id' => 'cam-1', 'level' => 'BOOM', 'polygon' => [[0,0],[9,0],[9,9]]]))->status());
        $this->assertSame(400, $c->save($this->saveReq(['camera_id' => 'cam-1', 'level' => 'warning', 'polygon' => [[0,0]]]))->status());
    }
    public function testSaveRejectsMissingOrWrongCsrf(): void {
        $repo = new InMemoryZoneRepository();
        $c = new ZoneConfigController($repo, new InMemoryAuditRepository(), $this->authed('operator'));
        $body = ['device_id' => 'pi-1', 'camera_id' => 'cam-1', 'level' => 'restricted', 'polygon' => [[0,0],[9,0],[9,9]]];
        // missing header
        $this->assertSame(403, $c->save($this->saveReq($body, []))->status());
        // wrong token
        $this->assertSame(403, $c->save($this->saveReq($body, ['X-Csrf-Token' => 'nope']))->status());
        // save did not proceed
        $this->assertCount(0, $repo->forCamera('cam-1'));
    }
    public function testDeleteRejectsMissingOrWrongCsrf(): void {
        $repo = new InMemoryZoneRepository();
        $repo->save(['zone_id' => 'z1', 'device_id' => 'pi-1', 'camera_id' => 'cam-1', 'level' => 'restricted', 'polygon_json' => '[[0,0],[9,0],[9,9]]']);
        $c = new ZoneConfigController($repo, new InMemoryAuditRepository(), $this->authed('operator'));
        // missing header
        $missing = new Request('POST', '/api/zones/z1/delete', [], '', [], []);
        $this->assertSame(403, $c->delete($missing, ['id' => 'z1'])->status());
        // wrong token
        $wrong = new Request('POST', '/api/zones/z1/delete', ['X-Csrf-Token' => 'nope'], '', [], []);
        $this->assertSame(403, $c->delete($wrong, ['id' => 'z1'])->status());
        // delete did not proceed
        $this->assertCount(1, $repo->forCamera('cam-1'));
        // valid token proceeds
        $ok = new Request('POST', '/api/zones/z1/delete', ['X-Csrf-Token' => 'tok'], '', [], []);
        $this->assertSame(200, $c->delete($ok, ['id' => 'z1'])->status());
        $this->assertCount(0, $repo->forCamera('cam-1'));
    }
}