using System.Security.Cryptography;
using System.Text;
using Kit.Helpers.SqlHelperAbstract;
using Server.WatchBody.Core.Dal.Src.Domain;
using Server.WatchBody.Core.Dal.Src.Repository;
using Server.WatchBody.Web.Config;

namespace Server.WatchBody.Web.Services;

/// <summary>SHA-256 ключа в hex (lower-case) — формат src.athlete.api_key_hash.</summary>
public static class ApiKeyHash
{
    public static string Of(string apiKey)
    {
        var bytes = SHA256.HashData(Encoding.UTF8.GetBytes(apiKey));
        return Convert.ToHexString(bytes).ToLowerInvariant();
    }
}

/// <summary>
/// Стартовая синхронизация атлетов конфига с src.athlete
/// (upsert по хэшу ключа; spec 01-config-bootstrap). is_blocked
/// конфигом не переопределяется — источник блокировки только БД.
/// </summary>
public static class AthleteBootstrap
{
    public static void Sync(IConnectionString connectionString, IReadOnlyList<ConfigAthlete> athletes)
    {
        var repo = new AthleteRepository(connectionString);
        foreach (var configAthlete in athletes)
        {
            var hash = ApiKeyHash.Of(configAthlete.ApiKey);
            var existing = repo.Select(new AthleteFilter { ApiKeyHash = hash }).FirstOrDefault();
            if (existing == null)
            {
                repo.Insert(new Athlete { Name = configAthlete.Name, ApiKeyHash = hash });
            }
            else if (!string.Equals(existing.Name, configAthlete.Name, StringComparison.Ordinal))
            {
                existing.Name = configAthlete.Name;
                repo.Update(existing);
            }
        }
    }
}