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#ifndef GLSLANG_SPIRV_LOGGER_H
#define GLSLANG_SPIRV_LOGGER_H

#include <string>
#include <vector>

namespace spv {

// A class for holding all SPIR-V build status messages, including
// missing/TBD functionalities, warnings, and errors.
class SpvBuildLogger {
public:
    SpvBuildLogger() {}

#ifdef GLSLANG_WEB
    void tbdFunctionality(const std::string& f) { }
    void missingFunctionality(const std::string& f) { }
    void warning(const std::string& w) { }
    void error(const std::string& e) { errors.push_back(e); }
    std::string getAllMessages() { return ""; }
#else

    // Registers a TBD functionality.
    void tbdFunctionality(const std::string& f);
    // Registers a missing functionality.
    void missingFunctionality(const std::string& f);

    // Logs a warning.
    void warning(const std::string& w) { warnings.push_back(w); }
    // Logs an error.
    void error(const std::string& e) { errors.push_back(e); }

    // Returns all messages accumulated in the order of:
    // TBD functionalities, missing functionalities, warnings, errors.
    std::string getAllMessages() const;
#endif

private:
    SpvBuildLogger(const SpvBuildLogger&);

    std::vector<std::string> tbdFeatures;
    std::vector<std::string> missingFeatures;
    std::vector<std::string> warnings;
    std::vector<std::string> errors;
};

} // end spv namespace

#endif // GLSLANG_SPIRV_LOGGER_H