#include "ObjParser.hpp"

ObjParser::ObjParser(const std::string& path)
    : path(path)
{}

Mesh ObjParser::parse() {
    std::ifstream handle(path);
    Mesh output;

    if(!handle.is_open())
       throw std::runtime_error(std::string("Cannot open the file ") + path);

    while(!handle.eof()) {
        char type;
        handle >> type;
        if(type == 'v') { // vertice
            double x, y, z;
            handle >> x >> y >> z;
            output.add_vertice(Point(x, y, z));
        }
        else {
            int v1, v2, v3;
            handle >> v1 >> v2 >> v3;
            output.add_face(Face(v1, v2, v3));
        }

        handle.ignore('\n');
    }

    return output;
}