// SPDX-License-Identifier: BUSL-1.1
// Sprint: SPRINT_4100_0006_0002 - eIDAS Crypto Plugin
using Microsoft.Extensions.Logging;
using StellaOps.Cryptography.Plugin.EIDAS.Configuration;

namespace StellaOps.Cryptography.Plugin.EIDAS;

public partial class TrustServiceProviderClient
{
    /// <summary>
    /// Remote verification via TSP (stub implementation).
    /// </summary>
    public async Task<bool> RemoteVerifyAsync(
        byte[] data,
        byte[] signature,
        string algorithmId,
        EidasKeyConfig keyConfig,
        CancellationToken cancellationToken)
    {
        _logger.LogDebug("TSP remote verification request: keyId={KeyId}, algorithm={Algorithm}",
            keyConfig.KeyId, algorithmId);

        _logger.LogWarning("Using stub TSP verification - replace with actual TSP API call in production");

        // Stub: Always return true
        await Task.Delay(50, cancellationToken).ConfigureAwait(false); // Simulate network latency

        _logger.LogInformation("TSP remote verification complete: keyId={KeyId}, valid=true",
            keyConfig.KeyId);

        return true;

        // Production implementation would be:
        // var hash = SHA256.HashData(data);
        // var request = new
        // {
        //     keyId = keyConfig.KeyId,
        //     algorithm = algorithmId,
        //     dataHash = Convert.ToBase64String(hash),
        //     signature = Convert.ToBase64String(signature)
        // };
        //
        // var response = await _httpClient.PostAsJsonAsync("/api/v1/verify", request, cancellationToken);
        // response.EnsureSuccessStatusCode();
        //
        // var result = await response.Content.ReadFromJsonAsync<TspVerifyResponse>(cancellationToken);
        // return result.Valid;
    }
}