#include "static_platform_adapter.hpp"

StaticPlatformAdapter::StaticPlatformAdapter(uint64_t flags, const tai_service_method_table_t* services) {
    std::string config_file = TAI_MUX_STATIC_DEFAULT_CONFIG;
    auto e = std::getenv(TAI_MUX_STATIC_CONFIG_FILE.c_str());
    if ( e != nullptr ) {
        config_file = e;
    }

    std::ifstream ifs(config_file);
    if ( !ifs ) {
        return;
    }

    std::istreambuf_iterator<char> it(ifs), last;
    std::string config(it, last);

    std::map<uint64_t, ModuleAdapter*> map;
    auto c = json::parse(config);

    m_services.module_presence = nullptr;

    for ( json::iterator it = c.begin(); it != c.end(); ++it ) {
        auto location = it.key();
        auto lib = it.value().get<std::string>();
        auto dl = ModuleAdapter::dl_address(lib);
        ModuleAdapter *ma = nullptr;
        if ( dl == 0 ) {
            ma = new ModuleAdapter(lib, flags, &m_services);
            dl = ModuleAdapter::dl_address(lib);
            map[dl] = ma;
        } else {
            ma = map[dl];
        }
        m_ma_map[location] = ma;
        if ( services != nullptr && services->module_presence != nullptr ) {
            services->module_presence(true, const_cast<char*>(location.c_str()));
        }
    }
}

StaticPlatformAdapter::~StaticPlatformAdapter() {
    for ( auto& pair : m_ma_map ) {
        delete pair.second;
    }
}