<?php

namespace Tests\Feature;

use App\Livewire\Wireguard\Index;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Livewire\Livewire;
use Tests\TestCase;

class WireguardPageTest extends TestCase
{
    use RefreshDatabase;

    private string $file;

    protected function setUp(): void
    {
        parent::setUp();
        $dir = storage_path('app/restart-signal');
        @mkdir($dir, 0775, true);
        $this->file = $dir.'/wg-status.json';
        @unlink($this->file);
        $this->actingAs(User::factory()->create(['must_change_password' => false]));
    }

    protected function tearDown(): void
    {
        @unlink($this->file);
        parent::tearDown();
    }

    public function test_renders_unconfigured_state(): void
    {
        Livewire::test(Index::class)
            ->assertOk()
            ->assertViewHas('status', fn ($s) => $s['configured'] === false)
            ->assertSee(__('wireguard.not_configured_title'));
    }

    public function test_renders_peers_when_configured(): void
    {
        file_put_contents($this->file, json_encode([
            'at' => time(), 'configured' => true,
            'gate' => ['marker' => true, 'chain' => true], 'wg_quick' => 'active',
            'server' => ['subnet' => '10.99.0.0/24', 'server_ip' => '10.99.0.1', 'port' => 51820, 'endpoint' => '1.2.3.4:51820', 'pubkey' => 'srvpub'],
            'peers' => [['name' => 'laptop', 'pubkey' => 'p1', 'endpoint' => '5.6.7.8:41820', 'latest_handshake' => time(), 'rx' => 100, 'tx' => 200]],
        ]));

        Livewire::test(Index::class)
            ->assertOk()
            ->assertViewHas('status', fn ($s) => $s['configured'] === true && count($s['peers']) === 1)
            ->assertSee('laptop')
            ->assertSee('10.99.0.0/24');
    }

    public function test_window_selector_switches_and_passes_traffic(): void
    {
        \App\Models\WgTrafficSample::create(['peer_pubkey' => 'p1', 'peer_name' => 'a', 'rx' => 0, 'tx' => 0, 'sampled_at' => now()->subMinutes(10)]);
        \App\Models\WgTrafficSample::create(['peer_pubkey' => 'p1', 'peer_name' => 'a', 'rx' => 500, 'tx' => 100, 'sampled_at' => now()->subMinutes(1)]);

        \Livewire\Livewire::test(\App\Livewire\Wireguard\Index::class)
            ->assertViewHas('traffic', fn ($t) => $t['total_down'] === 500)
            ->call('setWindow', 86400)
            ->assertSet('window', 86400)
            ->assertViewHas('traffic', fn ($t) => $t['window'] === 86400);
    }

    public function test_window_clamps_to_allowed_values(): void
    {
        \Livewire\Livewire::test(\App\Livewire\Wireguard\Index::class)
            ->call('setWindow', 999)
            ->assertSet('window', 3600);
    }

    public function test_add_peer_writes_a_request_and_audits(): void
    {
        \Livewire\Livewire::test(\App\Livewire\Wireguard\Index::class)
            ->set('newPeer', 'laptop')
            ->call('addPeer')
            ->assertSet('pendingId', fn ($v) => is_string($v) && $v !== '');

        $this->assertTrue(\App\Models\AuditEvent::where('action', 'wg.add-peer')->exists());
        $this->assertFileExists(storage_path('app/restart-signal/wg-request.json'));
        @unlink(storage_path('app/restart-signal/wg-request.json'));
    }

    public function test_add_peer_rejects_an_invalid_name(): void
    {
        \Livewire\Livewire::test(\App\Livewire\Wireguard\Index::class)
            ->set('newPeer', 'bad name')
            ->call('addPeer')
            ->assertHasErrors('newPeer');
        $this->assertSame(0, \App\Models\AuditEvent::where('action', 'wg.add-peer')->count());
    }

    public function test_remove_peer_writes_a_request_and_audits(): void
    {
        \Livewire\Livewire::test(\App\Livewire\Wireguard\Index::class)
            ->call('removePeer', 'laptop')
            ->assertSet('pendingId', fn ($v) => is_string($v) && $v !== '');
        $this->assertTrue(\App\Models\AuditEvent::where('action', 'wg.remove-peer')->exists());
        @unlink(storage_path('app/restart-signal/wg-request.json'));
    }

    public function test_poll_result_surfaces_the_config_once(): void
    {
        $c = \Livewire\Livewire::test(\App\Livewire\Wireguard\Index::class)->set('newPeer', 'laptop')->call('addPeer');
        $id = $c->get('pendingId');
        file_put_contents(storage_path("app/restart-signal/wg-result-{$id}.json"), json_encode(['id' => $id, 'ok' => true, 'message' => 'ok', 'config' => "[Interface]\nPrivateKey = x", 'at' => time()]));

        $c->call('pollResult')
            ->assertSet('pendingId', null)
            ->assertSet('resultConfig', fn ($v) => str_contains((string) $v, 'PrivateKey'));
        @unlink(storage_path("app/restart-signal/wg-result-{$id}.json"));
    }
}