using Microsoft.Extensions.Logging;
using System.Text.Json;

namespace StellaOps.Provcache.Valkey;

public sealed partial class ValkeyProvcacheStore
{
    public async ValueTask SetAsync(ProvcacheEntry entry, CancellationToken cancellationToken = default)
    {
        try
        {
            cancellationToken.ThrowIfCancellationRequested();
            var db = await GetDatabaseAsync(cancellationToken).ConfigureAwait(false);
            var redisKey = BuildKey(entry.VeriKey);
            var value = JsonSerializer.Serialize(entry, _jsonOptions);

            var ttl = entry.ExpiresAt - _timeProvider.GetUtcNow();
            if (ttl <= TimeSpan.Zero)
            {
                _logger.LogDebug("Skipping expired entry for VeriKey {VeriKey}", entry.VeriKey);
                return;
            }

            if (ttl > _options.MaxTtl)
            {
                ttl = _options.MaxTtl;
            }

            await db.StringSetAsync(redisKey, value, ttl).ConfigureAwait(false);

            _logger.LogDebug("Stored cache entry for VeriKey {VeriKey} with TTL {Ttl}", entry.VeriKey, ttl);
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Error storing cache entry for VeriKey {VeriKey}", entry.VeriKey);
            throw;
        }
    }
}