#include "scratchApi.h"

ReturnValue_t scratch::writeString(std::string name, std::string string) {
    std::ostringstream oss;
    oss << "xsc_scratch write " << name << " \"" << string << "\"";
    int result = std::system(oss.str().c_str());
    if(result != 0) {
        utility::handleSystemError(result, "scratch::writeString");
        return HasReturnvaluesIF::RETURN_FAILED;
    }
    return HasReturnvaluesIF::RETURN_OK;
}

ReturnValue_t scratch::readString(std::string key, std::string &string) {
    std::ifstream file;
    std::string filename;
    ReturnValue_t result = readToFile(key, file, filename);
    if(result != HasReturnvaluesIF::RETURN_OK) {
        return result;
    }

    std::string line;
    if (not std::getline(file, line)) {
        std::remove(filename.c_str());
        return HasReturnvaluesIF::RETURN_FAILED;
    }

    size_t pos = line.find("=");
    if(pos == std::string::npos) {
        sif::warning << "scratch::readNumber: Output file format invalid, "
                "no \"=\" found" << std::endl;
        // Could not find value
        std::remove(filename.c_str());
        return KEY_NOT_FOUND;
    }
    string = line.substr(pos + 1);
    return HasReturnvaluesIF::RETURN_OK;
}

ReturnValue_t scratch::clearValue(std::string key) {
    std::ostringstream oss;
    oss << "xsc_scratch clear " << key;
    int result = std::system(oss.str().c_str());
    if(result != 0) {
        utility::handleSystemError(result, "scratch::clearValue");
        return HasReturnvaluesIF::RETURN_FAILED;
    }
    return HasReturnvaluesIF::RETURN_OK;
}