<?php

declare(strict_types=1);

use App\Services\TenantConfiguration\ExchangePowerShellCommandContract;
use App\Services\TenantConfiguration\ExchangePowerShellCommandContracts;
use App\Services\TenantConfiguration\ExchangePowerShellOutputGuard;
use App\Services\TenantConfiguration\ExchangePowerShellProcessResult;
use App\Services\TenantConfiguration\ExchangePowerShellRuntimePolicy;
use App\Services\TenantConfiguration\ExchangePowerShellStructuredOutputEnvelope;

it('Spec435 accepts structured Exchange collections and structured empty collections without raw process output', function (): void {
    $contract = spec435VerifiedContract('transportRule');

    $collection = (new ExchangePowerShellOutputGuard)->guard(
        ExchangePowerShellProcessResult::completed(0, '[{"Guid":"rule-1","client_secret":"unsafe"}]', durationMs: 10),
        $contract,
        spec435RuntimePolicy(),
    );
    $empty = (new ExchangePowerShellOutputGuard)->guard(
        ExchangePowerShellProcessResult::completed(0, '', durationMs: 11),
        $contract,
        spec435RuntimePolicy(),
    );

    $collectionEnvelope = ExchangePowerShellStructuredOutputEnvelope::fromInvocationResult(
        resourceType: 'transportRule',
        contract: $contract,
        runnerMode: 'fake',
        result: $collection,
    );
    $emptyEnvelope = ExchangePowerShellStructuredOutputEnvelope::fromInvocationResult(
        resourceType: 'transportRule',
        contract: $contract,
        runnerMode: 'fake',
        result: $empty,
    );

    $collectionItemsJson = json_encode($collectionEnvelope->items, JSON_THROW_ON_ERROR);

    expect($collectionEnvelope->accepted())->toBeTrue()
        ->and($collectionEnvelope->shapeState)->toBe(ExchangePowerShellStructuredOutputEnvelope::SHAPE_STRUCTURED_COLLECTION)
        ->and($collectionEnvelope->itemCount)->toBe(1)
        ->and($collectionEnvelope->items[0]['Guid'] ?? null)->toBe('rule-1')
        ->and($collectionItemsJson)
        ->not->toContain('client_secret')
        ->not->toContain('unsafe')
        ->and($collectionEnvelope->safeSummary())
        ->not->toHaveKey('stdout')
        ->not->toHaveKey('stderr')
        ->and(json_encode($collectionEnvelope->safeSummary(), JSON_THROW_ON_ERROR))
        ->not->toContain('client_secret')
        ->and($emptyEnvelope->accepted())->toBeTrue()
        ->and($emptyEnvelope->shapeState)->toBe(ExchangePowerShellStructuredOutputEnvelope::SHAPE_STRUCTURED_EMPTY_COLLECTION)
        ->and($emptyEnvelope->emptyCollection)->toBeTrue()
        ->and($emptyEnvelope->itemCount)->toBe(0);
});

it('Spec435 strips forbidden secret and raw-output key families from public envelope items recursively', function (): void {
    $contract = spec435VerifiedContract('transportRule');
    $collection = (new ExchangePowerShellOutputGuard)->guard(
        ExchangePowerShellProcessResult::completed(0, json_encode([[
            'Guid' => 'rule-1',
            'Actions' => [
                'SetHeaderValue' => 'business-value-redacted-later',
                'authorization_header' => 'Bearer unsafe',
            ],
            'Nested' => [
                'stdout' => 'unsafe-direct-stdout',
                'stderr' => 'unsafe-direct-stderr',
                'tokens' => ['unsafe-token'],
                'Cookies' => ['unsafe-cookie'],
                'CredentialMaterial' => 'unsafe-credential',
                'PowerShellTranscript' => 'unsafe-transcript',
                'RawShellStdout' => 'unsafe-stdout',
            ],
        ]], JSON_THROW_ON_ERROR), durationMs: 10),
        $contract,
        spec435RuntimePolicy(),
    );

    $envelope = ExchangePowerShellStructuredOutputEnvelope::fromInvocationResult(
        resourceType: 'transportRule',
        contract: $contract,
        runnerMode: 'fake',
        result: $collection,
    );

    $itemsJson = json_encode($envelope->items, JSON_THROW_ON_ERROR);

    expect($envelope->accepted())->toBeTrue()
        ->and(data_get($envelope->items, '0.Guid'))->toBe('rule-1')
        ->and(data_get($envelope->items, '0.Actions.SetHeaderValue'))->toBe('business-value-redacted-later')
        ->and($itemsJson)
        ->not->toContain('authorization_header')
        ->not->toContain('unsafe-token')
        ->not->toContain('unsafe-cookie')
        ->not->toContain('unsafe-credential')
        ->not->toContain('unsafe-transcript')
        ->not->toContain('unsafe-stdout')
        ->not->toContain('unsafe-direct-stdout')
        ->not->toContain('unsafe-direct-stderr');
});

it('Spec435 maps unsafe Exchange process output shapes to explicit readiness blockers', function (
    ExchangePowerShellProcessResult $processResult,
    string $expectedShapeState,
    string $expectedBlocker,
): void {
    $contract = spec435VerifiedContract('transportRule');
    $result = (new ExchangePowerShellOutputGuard)->guard(
        $processResult,
        $contract,
        spec435RuntimePolicy(stdoutMaxBytes: 64, stderrMaxBytes: 64, itemLimit: 1),
    );

    $envelope = ExchangePowerShellStructuredOutputEnvelope::fromInvocationResult(
        resourceType: 'transportRule',
        contract: $contract,
        runnerMode: 'fake',
        result: $result,
    );

    expect($envelope->accepted())->toBeFalse()
        ->and($envelope->shapeState)->toBe($expectedShapeState)
        ->and($envelope->readinessBlocker)->toBe($expectedBlocker)
        ->and($envelope->normalizerReadinessState)->toBe(ExchangePowerShellStructuredOutputEnvelope::READINESS_BLOCKED)
        ->and(json_encode($envelope->safeSummary(), JSON_THROW_ON_ERROR))
        ->not->toContain('secret-output');
})->with([
    'malformed text' => [ExchangePowerShellProcessResult::completed(0, 'raw secret-output transcript'), 'malformed_json_collection', 'blocked_malformed_output'],
    'scalar output' => [ExchangePowerShellProcessResult::completed(0, '42'), 'malformed_json_collection', 'blocked_malformed_output'],
    'warning-prefixed output' => [ExchangePowerShellProcessResult::completed(0, "WARNING: secret-output\n[]"), 'warning_prefixed', 'blocked_warning_prefixed_output'],
    'binary output' => [ExchangePowerShellProcessResult::completed(0, "\x00\x01"), 'non_utf8_or_binary', 'blocked_binary_output'],
    'oversized stdout' => [ExchangePowerShellProcessResult::completed(0, str_repeat('A', 128)), 'stdout_oversized', 'blocked_oversized_output'],
    'oversized stderr' => [ExchangePowerShellProcessResult::completed(0, '[]', str_repeat('B', 128)), 'stderr_oversized', 'blocked_oversized_output'],
    'non-zero exit' => [ExchangePowerShellProcessResult::completed(1, '[{"Guid":"rule-1"}]'), 'nonzero_exit', 'blocked_nonzero_exit'],
    'timeout' => [ExchangePowerShellProcessResult::timedOut(60000), 'timeout', 'blocked_timeout'],
]);

function spec435RuntimePolicy(
    int $stdoutMaxBytes = 524288,
    int $stderrMaxBytes = 65536,
    int $itemLimit = 1000,
): ExchangePowerShellRuntimePolicy {
    return new ExchangePowerShellRuntimePolicy(
        invocationEnabled: true,
        productionRunnerEnabled: true,
        allowedEnvironments: [app()->environment()],
        currentEnvironment: app()->environment(),
        powershellBinary: 'pwsh',
        moduleCheckEnabled: true,
        checkTimeoutSeconds: 5,
        invocationTimeoutSeconds: 60,
        stdoutMaxBytes: $stdoutMaxBytes,
        stderrMaxBytes: $stderrMaxBytes,
        itemLimit: $itemLimit,
        lockTtlSeconds: 300,
        tempFilesEnabled: false,
        tempDirectory: null,
    );
}

function spec435VerifiedContract(string $canonicalType): ExchangePowerShellCommandContract
{
    $contracts = new ExchangePowerShellCommandContracts;
    $contract = $contracts->contractForCanonicalType($canonicalType);

    if (! is_array($contract)) {
        throw new RuntimeException('Missing Spec435 command contract.');
    }

    return ExchangePowerShellCommandContract::fromVerifiedArray($contract, $contracts, []);
}