#include "base.h"
#include "oai.h"

namespace humanus {

std::unordered_map<std::string, std::shared_ptr<EmbeddingModel>> EmbeddingModel::instances_;

std::shared_ptr<EmbeddingModel> EmbeddingModel::get_instance(const std::string& config_name, const std::shared_ptr<EmbeddingModelConfig>& config)  {
    if (instances_.find(config_name) == instances_.end()) {
        auto config_ = config;
        if (!config_) {
            if (Config::get_instance().embedding_model().find(config_name) == Config::get_instance().embedding_model().end()) {
                logger->warn("Embedding model config not found: " + config_name + ", falling back to default config");
                config_ = std::make_shared<EmbeddingModelConfig>(Config::get_instance().embedding_model().at("default"));
            } else {
                config_ = std::make_shared<EmbeddingModelConfig>(Config::get_instance().embedding_model().at(config_name));
            }
        }

        if (config_->provider == "oai") {
            instances_[config_name] = std::make_shared<OAIEmbeddingModel>(config_);
        } else {
            throw std::invalid_argument("Unsupported embedding model provider: " + config_->provider);
        }
    }
    return instances_[config_name];
}

} // namespace humanus