<?php

use App\Models\Artwork;
use App\Models\User;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\DB;

uses(RefreshDatabase::class);

it('returns only the image contract for navigation prefetch', function (): void {
    $artwork = Artwork::factory()->create([
        'title' => 'Prefetch Artwork',
        'slug' => 'prefetch-artwork',
        'hash' => 'aabbccddeeff00112233445566778899',
        'file_path' => 'uploads/prefetch.jpg',
    ]);
    $queries = 0;

    DB::listen(function () use (&$queries): void {
        $queries++;
    });

    $response = $this->getJson('/api/artworks/'.$artwork->id.'/page?prefetch=1')
        ->assertOk();

    expect($queries)->toBe(1)
        ->and($response->json())->toHaveKeys(['id', 'title', 'slug', 'thumbs'])
        ->and($response->json('thumbs'))->toHaveKeys(['md', 'lg'])
        ->and($response->json('thumbs.xl'))->toBeNull()
        ->and($response->json('stats'))->toBeNull()
        ->and($response->json('thumbs.lg.url'))->toBe(
            'https://cdn.skinbase.org/artworks/lg/aa/bb/aabbccddeeff00112233445566778899.webp'
        );
});

it('does not prefetch missing or unpublished artwork', function (): void {
    $unpublished = Artwork::factory()->unpublished()->create();

    $this->getJson('/api/artworks/'.$unpublished->id.'/page?prefetch=1')
        ->assertNotFound();

    $this->getJson('/api/artworks/999999/page?prefetch=1')
        ->assertNotFound();
});

it('keeps full page navigation data available separately from prefetch', function (): void {
    $artwork = Artwork::factory()->create([
        'slug' => 'full-navigation-artwork',
    ]);

    $this->getJson('/api/artworks/'.$artwork->id.'/page')
        ->assertOk()
        ->assertJsonStructure([
            'id', 'title', 'thumbs', 'user', 'categories', 'tags', 'stats', 'viewer',
        ]);
});

it('measures the lightweight prefetch contract for guest and authenticated viewers', function (): void {
    $artwork = Artwork::factory()->create([
        'slug' => 'prefetch-measurement-artwork',
        'hash' => 'aabbccddeeff00112233445566778899',
    ]);

    DB::enableQueryLog();
    DB::flushQueryLog();
    $guestPrefetch = $this->getJson('/api/artworks/'.$artwork->id.'/page?prefetch=1')->assertOk();
    $guestPrefetchQueries = count(DB::getQueryLog());

    DB::flushQueryLog();
    $guestFull = $this->getJson('/api/artworks/'.$artwork->id.'/page')->assertOk();
    $guestFullQueries = count(DB::getQueryLog());

    DB::flushQueryLog();
    $authPrefetch = $this->actingAs(User::factory()->create())
        ->getJson('/api/artworks/'.$artwork->id.'/page?prefetch=1')
        ->assertOk();
    $authPrefetchQueries = count(DB::getQueryLog());
    DB::flushQueryLog();
    $authFull = $this->getJson('/api/artworks/'.$artwork->id.'/page')->assertOk();
    $authFullQueries = count(DB::getQueryLog());
    DB::disableQueryLog();

    fwrite(STDERR, sprintf(
        "M18B3 prefetch bytes/queries: guest=%d/%d auth=%d/%d; full guest=%d/%d auth=%d/%d\n",
        strlen((string) $guestPrefetch->getContent()),
        $guestPrefetchQueries,
        strlen((string) $authPrefetch->getContent()),
        $authPrefetchQueries,
        strlen((string) $guestFull->getContent()),
        $guestFullQueries,
        strlen((string) $authFull->getContent()),
        $authFullQueries,
    ));

    expect($guestPrefetchQueries)->toBe(1)
        ->and($authPrefetchQueries)->toBeLessThanOrEqual(2)
        ->and($guestPrefetch->json())->toEqual($authPrefetch->json());
});