<?php

declare(strict_types=1);

namespace LIT\MCP\Tests\Unit\Admin;

use Brain\Monkey\Functions;
use LIT\MCP\Admin\AdminPostAction;
use LIT\MCP\Admin\DiviTab;
use LIT\MCP\Integrations\Divi\Release\CheckReport;
use LIT\MCP\Integrations\Divi\Release\CheckReportStore;
use LIT\MCP\Integrations\Divi\Release\CheckStep;
use LIT\MCP\Integrations\Divi\Release\ReleaseGate;
use LIT\MCP\Integrations\Divi\Release\ReleaseState;
use LIT\MCP\Integrations\Divi\Release\ReleaseStatus;
use LIT\MCP\Integrations\Divi\Release\ReleaseStore;
use LIT\MCP\Plugin;
use LIT\MCP\Tests\Support\FakeChangeLog;
use LIT\MCP\Tests\Unit\TestCase;
use Mockery;

final class DiviTabTest extends TestCase
{
    private ?string $redirect = null;

    protected function setUp(): void
    {
        parent::setUp();
        $this->redirect = null;
        Functions\stubEscapeFunctions();
        Functions\stubTranslationFunctions();
        Functions\when('current_user_can')->justReturn(true);
        Functions\when('check_admin_referer')->justReturn(1);
        Functions\when('get_current_user_id')->justReturn(1);
        Functions\when('wp_safe_redirect')->alias(function (string $url): bool {
            $this->redirect = $url;

            return true;
        });
        Functions\when('admin_url')->alias(static fn (string $path = ''): string => 'https://k.de/wp-admin/' . $path);
        Functions\when('add_query_arg')->alias(
            static fn (array $args, string $url): string => $url . '?' . http_build_query($args)
        );
    }

    private static function report(bool $green = true, string $version = '5.3.0', string $key = 'key'): CheckReport
    {
        $steps = array_map(
            static fn (string $step): CheckStep => new CheckStep($step, $green ? [] : ['rot']),
            [CheckStep::MANIFEST, CheckStep::MIRRORS, CheckStep::CATALOG, CheckStep::FORMAT, CheckStep::WRITE]
        );

        return new CheckReport('r1', '2026-10-01T08:00:00+00:00', 1, $version, Plugin::VERSION, $key, $steps);
    }

    private function tab(?CheckReport $report, ReleaseStore $releases, ?FakeChangeLog $log = null): DiviTab
    {
        $reports = Mockery::mock(CheckReportStore::class);
        $reports->allows('latest')->andReturn($report);

        return new DiviTab(
            $reports,
            $releases,
            $log ?? FakeChangeLog::forbidden(),
            new AdminPostAction(static function (): void {
            }),
            static fn (): string => '5.3.0',
            static fn (string $version): string => 'key'
        );
    }

    public function testReleaseNeedsAFreshGreenReport(): void
    {
        $reports = [null, self::report(false), self::report(true, '5.2.9'), self::report(true, '5.3.0', 'old')];
        foreach ($reports as $report) {
            $this->redirect = null;
            $releases = Mockery::mock(ReleaseStore::class);
            $releases->expects('add')->never();

            $this->tab($report, $releases)->release();

            self::assertStringContainsString('lit_mcp_notice=divi_release_refused', (string) $this->redirect);
        }
    }

    public function testReleaseStoresTheEntryAndLogsIt(): void
    {
        $releases = Mockery::mock(ReleaseStore::class);
        $releases->expects('add')->once()->with('5.3.0', Plugin::VERSION, 1, 'r1');
        $log = new FakeChangeLog();

        $this->tab(self::report(), $releases, $log)->release();

        self::assertStringContainsString('lit_mcp_notice=divi_released', (string) $this->redirect);
        self::assertSame('lit/divi-release', $log->records[0]['ability']);
        self::assertStringContainsString('Divi 5.3.0', $log->records[0]['summary']);
    }

    public function testWithdrawRemovesTheEntryOfTheInstalledVersion(): void
    {
        $releases = Mockery::mock(ReleaseStore::class);
        $releases->expects('withdraw')->once()->with('5.3.0', Plugin::VERSION)->andReturn(true);
        $log = new FakeChangeLog();

        $this->tab(null, $releases, $log)->withdraw();

        self::assertStringContainsString('lit_mcp_notice=divi_withdrawn', (string) $this->redirect);
        self::assertSame('lit/divi-release', $log->records[0]['ability']);
    }

    public function testActionsNeedNonceAndManageOptions(): void
    {
        Functions\when('current_user_can')->justReturn(false);
        Functions\expect('wp_die')->twice()->andReturnUsing(static function (): never {
            throw new \RuntimeException('died');
        });
        $releases = Mockery::mock(ReleaseStore::class);
        $releases->expects('add')->never();
        $releases->expects('withdraw')->never();
        $tab = $this->tab(self::report(), $releases);

        foreach (['release', 'withdraw'] as $method) {
            try {
                $tab->{$method}();
                self::fail($method . ' without manage_options');
            } catch (\RuntimeException $e) {
                self::assertSame('died', $e->getMessage());
            }
        }

    }

    public function testReleaseChecksTheNonce(): void
    {
        Functions\when('check_admin_referer')->alias(static function (string $action): never {
            throw new \RuntimeException('bad nonce for ' . $action);
        });
        $releases = Mockery::mock(ReleaseStore::class);
        $releases->expects('add')->never();

        $this->expectExceptionMessage('bad nonce for lit_mcp_divi_release');
        $this->tab(self::report(), $releases)->release();
    }

    /** @return string The rendered tab. */
    private function rendered(ReleaseStatus $status, ?CheckReport $report): string
    {
        ReleaseGate::useResolver(static fn (): ReleaseStatus => $status);
        Functions\when('get_posts')->justReturn([]);
        Functions\when('rest_url')->justReturn('https://k.de/wp-json/lit-mcp/v1/divi-check');
        Functions\when('wp_create_nonce')->justReturn('n');
        Functions\when('wp_nonce_field')->justReturn('');
        Functions\when('submit_button')->alias(static function (string $text): void {
            echo '<button>' . $text . '</button>';
        });
        Functions\when('get_userdata')->justReturn((object) ['display_name' => 'Jan']);
        Functions\when('date_i18n')->justReturn('01.10.2026 10:00');
        Functions\when('get_option')->justReturn('d.m.Y');

        ob_start();
        $this->tab($report, Mockery::mock(ReleaseStore::class))->render();

        return (string) ob_get_clean();
    }

    public function testUntestedWithAFreshGreenReportOffersTheRelease(): void
    {
        $html = $this->rendered(new ReleaseStatus(ReleaseState::Untested, '5.3.0'), self::report());

        self::assertStringContainsString('ungetestet', $html);
        self::assertStringContainsString('Prüfung starten', $html);
        self::assertStringContainsString('Divi 5.3.0 freigeben', $html);
        self::assertStringContainsString('name="_wpnonce" value="n"', $html);
    }

    public function testUntestedWithAStaleReportAsksForANewCheck(): void
    {
        $html = $this->rendered(new ReleaseStatus(ReleaseState::Untested, '5.3.0'), self::report(true, '5.2.9'));

        self::assertStringNotContainsString('Divi 5.3.0 freigeben', $html);
        self::assertStringContainsString('Prüfung erneut ausführen', $html);
    }

    public function testReleasedFromCodeOffersNeitherReleaseNorWithdrawal(): void
    {
        $html = $this->rendered(ReleaseStatus::released('5.3.0'), self::report());

        self::assertStringContainsString('freigegeben', $html);
        self::assertStringContainsString('im Plugin als getestet hinterlegt', $html);
        self::assertStringNotContainsString('freigeben</button>', $html);
        self::assertStringNotContainsString('Freigabe zurückziehen', $html);
    }

    public function testADatabaseReleaseCanBeWithdrawn(): void
    {
        $status = new ReleaseStatus(ReleaseState::Released, '5.3.0', ReleaseStatus::SOURCE_DATABASE, [], [
            'released_at' => '2026-10-01T08:00:00+00:00', 'user_id' => 1,
        ]);

        self::assertStringContainsString('Freigabe zurückziehen', $this->rendered($status, self::report()));
    }

    public function testWithoutDiviShowsOnlyAShortNotice(): void
    {
        ReleaseGate::useResolver(static function (): ReleaseStatus {
            self::fail('resolver called although Divi is not active');
        });
        $reports = Mockery::mock(CheckReportStore::class);
        $reports->expects('latest')->never();
        $tab = new DiviTab(
            $reports,
            Mockery::mock(ReleaseStore::class),
            FakeChangeLog::forbidden(),
            new AdminPostAction(static function (): void {
            }),
            static fn (): string => '',
            static fn (string $version): string => 'key'
        );

        ob_start();
        $tab->render();
        $html = (string) ob_get_clean();

        self::assertStringContainsString(
            'Divi ist auf dieser Website nicht aktiv; die Divi-Freigabe ist ohne Bedeutung.',
            $html
        );
        self::assertStringNotContainsString('Prüfung starten', $html);
    }

    public function testIncompatibleListsTheProblems(): void
    {
        $html = $this->rendered(
            new ReleaseStatus(ReleaseState::Incompatible, '5.3.0', null, ['Theme Builder: Nachbau von x() – y']),
            null
        );

        self::assertStringContainsString('inkompatibel', $html);
        self::assertStringContainsString('Theme Builder: Nachbau von x() – y', $html);
        self::assertStringContainsString('Plugin-Update', $html);
    }
}