<?php

declare(strict_types=1);

namespace App\Tests\Functional\Controller;

use App\Entity\Device;
use App\Entity\Image;
use App\Entity\SharedImage;
use App\Entity\Token;
use App\Enum\SharedImageStatus;
use App\Enum\TokenType;
use App\Tests\Functional\AppWebTestCase;

/**
 * Tests for TokenActionController — token-based share approve/decline flows.
 *
 * TK-01: Valid share_approve token → page renders (GET) / action performed (POST)
 * TK-02: Expired/missing token → invalid page rendered
 * TK-03: Already-used token → same invalid page (repo returns null for used tokens)
 */
class TokenActionControllerTest extends AppWebTestCase
{
    private function makeImage($user): Image
    {
        $image = (new Image())->setUser($user)->setOriginalFilename('x.jpg')->setStoragePath('x');
        $this->em()->persist($image);
        return $image;
    }

    private function issueToken(Image $image, TokenType $type, int $ttlDays = 7): Token
    {
        $token = new Token($type, $image, null, 'recipient@example.com', $ttlDays);
        $this->em()->persist($token);
        return $token;
    }

    /**
     * TK-01a: GET /token/{uuid}/approve with a valid token renders the approve page.
     */
    public function test_approve_show_valid_token_renders_page(): void
    {
        $sender    = $this->createUser('tk01a_sender@example.com');
        $recipient = $this->createUser('tk01a_recip@example.com');
        $image     = $this->makeImage($sender);
        $token     = $this->issueToken($image, TokenType::ShareApprove);
        $this->em()->flush();

        $client = $this->loginAs($recipient);
        $client->request('GET', '/token/' . $token->getUuid() . '/approve');

        $this->assertResponseIsSuccessful();
        // The valid approve page shows "Someone shared a photo" — NOT the invalid page
        $this->assertSelectorTextContains('h1', 'Someone shared a photo');
    }

    /**
     * TK-01b: POST /token/{uuid}/approve with a valid token marks SharedImage as approved and consumes the token.
     */
    public function test_approve_submit_valid_token_marks_approved_and_consumes(): void
    {
        $sender    = $this->createUser('tk01b_sender@example.com');
        $recipient = $this->createUser('tk01b_recip@example.com');
        $image     = $this->makeImage($sender);
        $token     = $this->issueToken($image, TokenType::ShareApprove);

        // Also create a SharedImage so the controller can update its status
        $shared = new SharedImage($image, $recipient, $sender);
        $this->em()->persist($shared);
        $this->em()->flush();

        $tokenUuid = $token->getUuid();
        $sharedId  = $shared->getId();

        $client = $this->loginAs($recipient);
        $client->request('POST', '/token/' . $tokenUuid . '/approve', [
            'device_ids' => [],
        ]);

        // Controller renders approved.html.twig on success (200)
        $this->assertResponseIsSuccessful();

        // Token should now be marked used
        $this->em()->clear();
        $reloaded = $this->em()->find(Token::class, $tokenUuid);
        $this->assertNotNull($reloaded->getUsedAt(), 'Token should be consumed after successful submit');

        // SharedImage status should be Approved
        $sharedReloaded = $this->em()->find(SharedImage::class, $sharedId);
        $this->assertSame(SharedImageStatus::Approved, $sharedReloaded->getStatus());
        $this->assertSame($recipient->getId(), $sharedReloaded->getRecipientUser()->getId());
    }

    /**
     * TK-01c: A device_ids list containing an unknown / not-recipient-owned id
     * MUST be silently skipped (not 500). Locks the "continue on bad id"
     * branch in TokenActionController::submit.
     */
    public function test_approve_submit_skips_unknown_device_ids(): void
    {
        $sender    = $this->createUser('tk01c_sender@example.com');
        $recipient = $this->createUser('tk01c_recip@example.com');
        $image     = $this->makeImage($sender);
        $token     = $this->issueToken($image, TokenType::ShareApprove);
        $shared    = new SharedImage($image, $recipient, $sender);
        $this->em()->persist($shared);

        // Recipient owns one device; the form will submit a real id and a bogus one.
        $real = new \App\Entity\Device();
        $real->setMac('AA:BB:CC:DD:EE:F1');
        $real->setName('Recip Frame');
        $real->setUser($recipient);
        $this->em()->persist($real);
        $this->em()->flush();

        $client = $this->loginAs($recipient);
        $client->request('POST', '/token/' . $token->getUuid() . '/approve', [
            'device_ids' => [(string) $real->getId(), '999999'],
        ]);
        $this->assertResponseIsSuccessful();

        // The real device should now have the image approved; the bogus id is a no-op.
        $this->em()->clear();
        $reloadedImage = $this->em()->find(\App\Entity\Image::class, $image->getId());
        $approvedIds = array_map(
            fn(\App\Entity\Device $d) => $d->getId(),
            $reloadedImage->getApprovedDevices()->toArray(),
        );
        $this->assertContains($real->getId(), $approvedIds);
    }

    /**
     * TK-02: GET /token/{uuid}/approve with a missing UUID renders the invalid page.
     */
    public function test_approve_show_missing_token_renders_invalid_page(): void
    {
        $user = $this->createUser('tk02@example.com');
        $this->em()->flush();

        $client = $this->loginAs($user);
        $client->request('GET', '/token/00000000-0000-0000-0000-000000000000/approve');

        $this->assertResponseIsSuccessful(); // controller returns 200 with invalid.html.twig
        $this->assertSelectorTextContains('body', 'expired');
    }

    /**
     * TK-03: GET /token/{uuid}/approve with an already-used token renders the invalid page.
     *
     * TokenRepository::findValidToken() filters usedAt IS NULL, so a used token
     * is indistinguishable from a missing one — both return null → invalid page.
     */
    public function test_approve_show_used_token_renders_invalid_page(): void
    {
        $sender = $this->createUser('tk03_sender@example.com');
        $image  = $this->makeImage($sender);
        $token  = $this->issueToken($image, TokenType::ShareApprove);
        // Consume the token before the test
        $token->consume();
        $this->em()->flush();

        $recipient = $this->createUser('tk03_recip@example.com');
        $client    = $this->loginAs($recipient);
        $client->request('GET', '/token/' . $token->getUuid() . '/approve');

        $this->assertResponseIsSuccessful();
        $this->assertSelectorTextContains('body', 'expired');
    }

    // TK-04: GET /token/{uuid}/approve without login renders the approve page (anonymous)
    public function test_approve_show_anonymous_shows_page(): void
    {
        $sender = $this->createUser('tk04_sender@example.com');
        $image  = $this->makeImage($sender);
        $token  = $this->issueToken($image, TokenType::ShareApprove);
        $this->em()->flush();

        $this->client->request('GET', '/token/' . $token->getUuid() . '/approve');

        $this->assertResponseIsSuccessful();
        $this->assertSelectorTextContains('h1', 'Someone shared a photo');
    }

    // TK-05: POST /token/{uuid}/approve unauthenticated → redirects to /login
    public function test_approve_submit_unauthenticated_redirects_to_login(): void
    {
        $sender = $this->createUser('tk05_sender@example.com');
        $image  = $this->makeImage($sender);
        $token  = $this->issueToken($image, TokenType::ShareApprove);
        $this->em()->flush();

        $this->client->request('POST', '/token/' . $token->getUuid() . '/approve', [
            'device_ids' => [],
        ]);

        $this->assertResponseRedirects('/login');
    }

    // TK-06: POST /token/{invalid}/approve → renders invalid page
    public function test_approve_submit_invalid_token_renders_invalid(): void
    {
        $user   = $this->createUser('tk06@example.com');
        $client = $this->loginAs($user);

        $client->request('POST', '/token/00000000-0000-0000-0000-000000000000/approve', [
            'device_ids' => [],
        ]);

        $this->assertResponseIsSuccessful();
        $this->assertSelectorTextContains('body', 'expired');
    }

    // TK-07: GET /token/{uuid}/decline with valid token renders decline page
    public function test_decline_show_valid_token_renders_page(): void
    {
        $sender = $this->createUser('tk07_sender@example.com');
        $image  = $this->makeImage($sender);
        $token  = $this->issueToken($image, TokenType::ShareDecline);
        $this->em()->flush();

        $this->client->request('GET', '/token/' . $token->getUuid() . '/decline');

        $this->assertResponseIsSuccessful();
    }

    // TK-08: GET /token/{invalid}/decline → renders invalid page
    public function test_decline_show_invalid_token_renders_invalid_page(): void
    {
        $this->client->request('GET', '/token/00000000-0000-0000-0000-000000000000/decline');

        $this->assertResponseIsSuccessful();
        $this->assertSelectorTextContains('body', 'expired');
    }

    // TK-09: POST /token/{uuid}/decline → sets SharedImage status to Declined
    public function test_decline_submit_updates_shared_image_to_declined(): void
    {
        $sender    = $this->createUser('tk09_sender@example.com');
        $recipient = $this->createUser('tk09_recip@example.com');
        $image     = $this->makeImage($sender);
        $token     = $this->issueToken($image, TokenType::ShareDecline);

        $shared = new SharedImage($image, $recipient, $sender);
        $this->em()->persist($shared);
        $this->em()->flush();

        $sharedId = $shared->getId();
        $client   = $this->loginAs($recipient);
        $client->request('POST', '/token/' . $token->getUuid() . '/decline');

        $this->assertResponseIsSuccessful();

        $this->em()->clear();
        $reloaded = $this->em()->find(SharedImage::class, $sharedId);
        $this->assertSame(\App\Enum\SharedImageStatus::Declined, $reloaded->getStatus());
    }

    // TK-10: POST /token/{uuid}/decline without a matching SharedImage → succeeds
    public function test_decline_submit_without_shared_image_succeeds(): void
    {
        $sender = $this->createUser('tk10_sender@example.com');
        $image  = $this->makeImage($sender);
        $token  = $this->issueToken($image, TokenType::ShareDecline);
        $this->em()->flush();

        $user   = $this->createUser('tk10_user@example.com');
        $client = $this->loginAs($user);
        $client->request('POST', '/token/' . $token->getUuid() . '/decline');

        $this->assertResponseIsSuccessful();
    }

    // TK-12: POST /token/{uuid}/approve with recipient's own device → approveForDevice is called
    public function test_approve_submit_with_owned_device_calls_approve_for_device(): void
    {
        $sender    = $this->createUser('tk12_sender@example.com');
        $recipient = $this->createUser('tk12_recip@example.com');
        $image     = $this->makeImage($sender);
        $token     = $this->issueToken($image, TokenType::ShareApprove);

        $ownDevice = new Device();
        $ownDevice->setMac('AA:BB:CC:00:55:66')->setName('My Frame');
        $ownDevice->setUser($recipient);
        $this->em()->persist($ownDevice);

        $shared = new SharedImage($image, $recipient, $sender);
        $this->em()->persist($shared);
        $this->em()->flush();

        $client = $this->loginAs($recipient);
        $client->request('POST', '/token/' . $token->getUuid() . '/approve', [
            'device_ids' => [$ownDevice->getId()],
        ]);

        $this->assertResponseIsSuccessful();
    }

    // TK-11: POST /token/{uuid}/approve with a device_id not owned by the user → device skipped (continue branch)
    public function test_approve_submit_with_unowned_device_id_is_skipped(): void
    {
        $sender    = $this->createUser('tk11_sender@example.com');
        $recipient = $this->createUser('tk11_recip@example.com');
        $other     = $this->createUser('tk11_other@example.com');

        $image = $this->makeImage($sender);
        $token = $this->issueToken($image, TokenType::ShareApprove);

        $otherDevice = new Device();
        $otherDevice->setMac('AA:BB:CC:00:44:55')->setName('Other Frame');
        $otherDevice->setUser($other);
        $this->em()->persist($otherDevice);

        $this->em()->flush();

        $client = $this->loginAs($recipient);
        $client->request('POST', '/token/' . $token->getUuid() . '/approve', [
            'device_ids' => [$otherDevice->getId()],
        ]);

        $this->assertResponseIsSuccessful();
    }
}