#include "common/error.hpp"
#include <sstream>

namespace smartbotic::common {

int errorCodeToHttpStatus(ErrorCode code) {
    switch (code) {
        case ErrorCode::InvalidArgument:
        case ErrorCode::ValidationError:
        case ErrorCode::QueryError:
            return 400;

        case ErrorCode::Unauthenticated:
        case ErrorCode::InvalidCredentials:
        case ErrorCode::TokenExpired:
        case ErrorCode::TokenInvalid:
        case ErrorCode::SessionExpired:
            return 401;

        case ErrorCode::PermissionDenied:
        case ErrorCode::InsufficientPermissions:
            return 403;

        case ErrorCode::NotFound:
        case ErrorCode::DocumentNotFound:
        case ErrorCode::CollectionNotFound:
        case ErrorCode::WorkflowNotFound:
        case ErrorCode::NodeNotFound:
            return 404;

        case ErrorCode::AlreadyExists:
        case ErrorCode::VersionConflict:
            return 409;

        case ErrorCode::FailedPrecondition:
        case ErrorCode::WorkflowInactive:
            return 412;

        case ErrorCode::ResourceExhausted:
            return 429;

        case ErrorCode::Timeout:
        case ErrorCode::ExecutionTimeout:
        case ErrorCode::ScriptTimeout:
            return 408;

        case ErrorCode::Unavailable:
        case ErrorCode::RunnerUnavailable:
        case ErrorCode::NoRunnersAvailable:
        case ErrorCode::CircuitBreakerOpen:
            return 503;

        case ErrorCode::Aborted:
        case ErrorCode::ExecutionCancelled:
            return 499;

        default:
            return 500;
    }
}

Error::Error(ErrorCode code, std::string message)
    : code_(code), message_(std::move(message)), details_(nlohmann::json::object()) {}

Error::Error(ErrorCode code, std::string message, nlohmann::json details)
    : code_(code), message_(std::move(message)), details_(std::move(details)) {}

nlohmann::json Error::toJson() const {
    nlohmann::json j;
    j["code"] = static_cast<int>(code_);
    j["message"] = message_;
    if (!details_.empty()) {
        j["details"] = details_;
    }
    return j;
}

std::string Error::toString() const {
    std::ostringstream ss;
    ss << "Error[" << static_cast<int>(code_) << "]: " << message_;
    if (!details_.empty()) {
        ss << " (" << details_.dump() << ")";
    }
    return ss.str();
}

Error Error::fromException(const std::exception& e) {
    return Error(ErrorCode::Internal, e.what());
}

SmartBoticException::SmartBoticException(Error error)
    : std::runtime_error(error.toString()), error_(std::move(error)) {}

} // namespace smartbotic::common