#include <filesystem>
#include <iostream>
#include <unordered_map>

#include "options.h"
#include "VoidScript.hpp"

const std::unordered_map<std::string, std::string> params = {
    { "--help",    "Print this help message"          },
    { "--version", "Print the version of the program" },
};

int main(int argc, char * argv[]) {
    std::string usage = "Usage: " + std::string(argv[0]);
    for (const auto & [key, value] : params) {
        usage.append(" [" + key + "]");
    }
    if (argc < 2) {
        std::cerr << usage << "\n";
        return 1;
    }

    std::string file;

    const std::string arg = std::string(argv[1]);
    if (arg.starts_with("-")) {
        auto it = params.find(arg);
        if (it != params.end()) {
            if (arg == "--help") {
                std::cout << usage << "\n";
                for (const auto & [key, value] : params) {
                    std::cout << "  " << key << ": " << value << "\n";
                }
                return 0;
            }
            if (arg == "--version") {
                std::cout << "Version:      " << VERSION_MAJOR << "." << VERSION_MINOR << "." << VERSION_PATCH;
                std::cout << " (" << VERSION_GIT_HASH << ")\n";
                std::cout << "Architecture: " << VERSION_ARCH << "\n";
                std::cout << "System:       " << VERSION_SYSTEM_NAME << "\n";
                return 0;
            }
            return 0;
        }
        std::cerr << "Error: Unknown option " << arg << "\n";
        std::cerr << usage << "\n";
        return 1;
    }
    file = arg;

    if (!std::filesystem::exists(file)) {
        std::cerr << "Error: File " << file << " does not exist.\n";
        return 1;
    }

    const std::string filename = std::filesystem::canonical(file).string();

    VoidScript voidscript(filename);
    return voidscript.run();
}