using Grand.Api.Commands.Models.Common;
using Grand.Api.Infrastructure.Extensions;
using Grand.Api.Jwt;
using Grand.Infrastructure.Configuration;
using MediatR;

namespace Grand.Api.Commands.Handlers.Common;

public class GenerateTokenCommandHandler : IRequestHandler<GenerateTokenCommand, string>
{
    private readonly BackendAPIConfig _apiConfig;

    public GenerateTokenCommandHandler(BackendAPIConfig apiConfig)
    {
        _apiConfig = apiConfig;
    }

    public async Task<string> Handle(GenerateTokenCommand request, CancellationToken cancellationToken)
    {
        var token = new JwtTokenBuilder();
        token.AddSecurityKey(JwtSecurityKey.Create(_apiConfig.SecretKey));

        if (_apiConfig.ValidateIssuer)
            token.AddIssuer(_apiConfig.ValidIssuer);
        if (_apiConfig.ValidateAudience)
            token.AddAudience(_apiConfig.ValidAudience);

        token.AddClaims(request.Claims);
        token.AddExpiry(_apiConfig.ExpiryInMinutes);
        token.Build();

        return await Task.FromResult(token.Build().Value);
    }
}