// Copyright (c) 2024, Viktor Larsson
// All rights reserved.
//
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// modification, are permitted provided that the following conditions are met:
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//     * Redistributions of source code must retain the above copyright
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#include "robust_loss.h"

namespace poselib {

std::shared_ptr<RobustLoss> RobustLoss::factory(const BundleOptions &opt) { return factory(opt, opt.loss_scale); }

std::shared_ptr<RobustLoss> RobustLoss::factory(const BundleOptions &opt, double custom_scale) {
    switch (opt.loss_type) {
    case BundleOptions::TRUNCATED:
        return std::make_shared<TruncatedLoss>(custom_scale);

    case BundleOptions::TRUNCATED_LE_ZACH:
        return std::make_shared<TruncatedLossLeZach>(custom_scale);

    case BundleOptions::HUBER:
        return std::make_shared<HuberLoss>(custom_scale);

    case BundleOptions::CAUCHY:
        return std::make_shared<CauchyLoss>(custom_scale);

    case BundleOptions::TRUNCATED_CAUCHY:
        return std::make_shared<TruncatedCauchyLoss>(custom_scale);

    case BundleOptions::TRIVIAL:
    default:
        return std::make_shared<TrivialLoss>();
    }
}

} // namespace poselib