#include "shadersource.h"
#include <string>
#include "shader.h"

ShaderSource::ShaderSource();

void ShaderSource::addSource(const char *source, SourceType type)
{

}

Shader* ShaderSource::compile(int nbDefines = 0, const char** defines = NULL)
{
    if(sources[VERTEX] == NULL || sources[FRAGMENT] == NULL)
        return NULL;
    std::string compiledSources[NB_TYPES];
    for(int i=0; i<NB_TYPES; ++i)
    {
        if(sources[i] == NULL)
            continue;
        compiledSources[i] = std::string(sources[i]);
        preprocess(compiledSources[i], nbDefines, defines);
    }
    if(sources[GEOMETRY] != NULL)
        return new Shader(compiledSources[VERTEX], compiledSources[GEOMETRY], compiledSources[FRAGMENT]);
    else
        return new Shader(compiledSources[VERTEX], compiledSources[FRAGMENT]);
}

void ShaderSource::preprocess(std::string &source, int nbDefines, const char** defines)
{
    std::istringstream f("line1\nline2\nline3");
    std::string line;
    while (std::getline(f, line)) {
        if(line.at(0) == '#')
        {
            // TODO
        }
    }
}