#include <iostream>
#include "gl_debug.h"

#ifdef __DEBUG
void GLAPIENTRY debug_func(GLenum source, GLenum type, GLuint, GLenum severity, GLsizei, const GLchar* msg, const void*) {
    const char* src;
    switch(source) {
        case GL_DEBUG_SOURCE_API:
            src = "[SOURCE_API]";
        break;
        case GL_DEBUG_SOURCE_OTHER:
            src = "[SOURCE_OTHER]";
        break;
        case GL_DEBUG_SOURCE_THIRD_PARTY:
            src = "[SOURCE_THIRD_PARTY]";
        break;
        case GL_DEBUG_SOURCE_APPLICATION:
            src = "[SOURCE_APP]";
        break;
        case GL_DEBUG_SOURCE_SHADER_COMPILER:
            src = "[SOURCE_SHADER_COMPILER]";
        break;
        case GL_DEBUG_SOURCE_WINDOW_SYSTEM:
            src = "[SOURCE_WIN_SYS]";
        break;
        default:
            src = "[SOURCE_UNKNOWN]";
        break;
    }

    const char* tp;
    switch(type) {
        case GL_DEBUG_TYPE_ERROR:
            tp = "[TYPE_ERROR]";
        break;
        case GL_DEBUG_TYPE_OTHER:
            tp = "[TYPE_OTHER]";
        break;
        case GL_DEBUG_TYPE_MARKER:
            tp = "[TYPE_MARKER]";
        break;
        case GL_DEBUG_TYPE_PERFORMANCE:
            tp = "[TYPE_PERF]";
        break;
        case GL_DEBUG_TYPE_PORTABILITY:
            tp = "[TYPE_PORT]";
        break;
        case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR:
            tp = "[TYPE_DEPRECATED]";
        break;
        case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR:
            tp = "[TYPE_UB]";
        break;
        default:
            tp = "[TYPE_UNKNOWN]";
        break;
    }

    const char* sv;
    switch(severity) {
        case GL_DEBUG_SEVERITY_LOW:
            sv = "[SEV_LOW]";
            break;
        case GL_DEBUG_SEVERITY_MEDIUM:
            sv = "[SEV_MED]";
            break;
        case GL_DEBUG_SEVERITY_HIGH:
            sv = "[SEV_HIGH]";
            break;
        case GL_DEBUG_SEVERITY_NOTIFICATION:
            return;
            sv = "[SEV_NOTIF]";
            break;
        default:
            sv = "[SEV_UNKNOWN]";
    }

    std::cerr << "[GL]" << sv << tp << src << ": " << msg << std::endl;
}
#endif