using System.ComponentModel.DataAnnotations;
using System.Diagnostics.CodeAnalysis;
using System.Text;
using Microsoft.Extensions.Options;

namespace USEntryCoach.Server.Settings;

public sealed class ApiSettings
{
    public const string SectionName = "API";

    [Required(ErrorMessage = "OpenAI API token is required!", AllowEmptyStrings = false)]
    public required string OpenAiToken { get; set; }
}

public sealed class AuthenticationSettings
{
    public const string SectionName = "Authentication";

    private string _jwtGenerationSecret = null!;

    [Required(ErrorMessage = "JWT generation secret token is required!", AllowEmptyStrings = false)]
    public required string JwtGenerationSecret
    {
        get => _jwtGenerationSecret;
        set
        {
            _jwtGenerationSecret = value;
            JwtGenerationSecretBytes = Encoding.UTF8.GetBytes(value);
        }
    }

    public byte[] JwtGenerationSecretBytes { get; private set; }

    const string JwtExpiryTimeMin = "00:00:30";
    const string JwtExpiryTimeMax = "24:00:00";

    [Range(typeof(TimeSpan), JwtExpiryTimeMin, JwtExpiryTimeMax,
        ErrorMessage = $"JWT expiry time must be in the range from {JwtExpiryTimeMin} to {JwtExpiryTimeMax}.")]
    public TimeSpan JwtExpiryTime { get; set; } = TimeSpan.FromMinutes(5);
}