#include "Paths.h"

namespace Artifact {

Path getDataPath() {
    Path base;

    // ────────────────────────────────────────────────
    // 1. Windows — AppData/Roaming (most common choice)
    // ────────────────────────────────────────────────
#ifdef _WIN32
    const char* appdata = std::getenv("APPDATA");
    if (!appdata || !fs::exists(appdata)) {
        throw std::runtime_error("Cannot find APPDATA environment variable");
    }
    base = Path(appdata) / organization / GAME;

#elif defined(__APPLE__)
    // ────────────────────────────────────────────────
    // 2. macOS — Application Support
    // ────────────────────────────────────────────────
    const char* home = std::getenv("HOME");
    if (!home) throw std::runtime_error("Cannot find HOME");
    base = Path(home) / "Library" / "Application Support" / GAME;

#else
    // ────────────────────────────────────────────────
    // 3. Linux / BSD / Steam Deck — XDG_DATA_HOME
    // ────────────────────────────────────────────────
    const char* xdg_data = std::getenv("XDG_DATA_HOME");
    if (xdg_data && *xdg_data) {
        base = fs::path(xdg_data) / game;
    } else {
        const char* home = std::getenv("HOME");
        if (!home) throw std::runtime_error("Cannot find HOME");
        base = Path(home) / ".local" / "share" / GAME;
    }
#endif

    // Create folder structure if it doesn't exist
    std::error_code ec;
    std::filesystem::create_directories(base, ec);

    if (ec) {
        throw std::runtime_error("Failed to create directory: " +
                                 base.string() + " → " + ec.message());
    }

    return base;
}

Path getClientConfigPath() {
    return getDataPath() / "client.conf";
}

Path getServerConfigPath() {
    return getDataPath() / "server.conf";
}

}