#pragma once

#include <iostream>
#include <string>

struct GameConfig {
    // Terrain configuration
    std::string heightmapFile = "../assets/heightmap.bin";
    float unitsPerSample = 1.0f;      // Meters per heightmap sample
    float heightScale = 1.0f;          // Height multiplier

    // Window configuration
    int windowWidth = 1280;
    int windowHeight = 720;
    std::string windowTitle = "Game";
    int targetFPS = 60;

    // Movement
    float moveSpeed = 15.0f;

    // Network
    float heartbeatInterval = 5.0f;

    // Debug options
    bool showDebugInfo = false;

    // Load configuration from command line args or config file
    static GameConfig fromArgs(int argc, char* argv[]) {
        GameConfig config;

        // Parse command line arguments
        for (int i = 1; i < argc; i++) {
            std::string arg = argv[i];

            if (arg == "--heightmap" && i + 1 < argc) {
                config.heightmapFile = argv[++i];
            } else if (arg == "--scale" && i + 1 < argc) {
                config.unitsPerSample = std::stof(argv[++i]);
            } else if (arg == "--height-scale" && i + 1 < argc) {
                config.heightScale = std::stof(argv[++i]);
            } else if (arg == "--debug") {
                config.showDebugInfo = true;
            } else if (arg == "--help") {
                printHelp();
                exit(0);
            }
        }

        return config;
    }

private:
    static void printHelp() {
        std::cout << "Game Options:\n";
        std::cout << "  --heightmap <file>    Load specific heightmap file\n";
        std::cout << "  --scale <value>       Units per heightmap sample (default: 1.0)\n";
        std::cout << "  --height-scale <val>  Height multiplier (default: 1.0)\n";
        std::cout << "  --debug               Show debug information\n";
        std::cout << "  --help                Show this help\n";
        std::cout << "\nExamples:\n";
        std::cout << "  ./game --heightmap ../assets/heightmap_small.bin\n";
        std::cout << "  ./game --heightmap ../assets/heightmap_large.bin --scale 2.0\n";
    }
};