package com.game.optimize;

import java.io.*;
import java.nio.file.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.stream.Collectors;

public class AdvancedGameOptimizer {
    // 设备信息配置（示例值，实际使用时需要填写真实信息）
    private DeviceProfile device = new DeviceProfile(
        "Xiaomi 14 Pro",       // 设备名称
        "23127PN0CC",          // 设备型号
        "Snapdragon 8 Gen 3",  // CPU型号
        "Adreno 750",          // GPU型号
        12,                    // 内存(GB)
        256,                   // 存储(GB)
        15,                    // 安卓版本
        35,                    // API级别
        "3200x1440",           // 屏幕分辨率
        120,                   // 刷新率(Hz)
        true                   // 是否高端设备
    );

    // 优化引擎组件
    private final ConfigScanner configScanner = new ConfigScanner();
    private final OptimizationEngine optimizer = new OptimizationEngine();
    private final PerformanceMonitor monitor = new PerformanceMonitor();
    
    // 运行时状态
    private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(4);
    private final Map<String, OptimizedGame> optimizedGames = new ConcurrentHashMap<>();
    private final AtomicBoolean isRunning = new AtomicBoolean(false);

    // 主入口
    public void startFullOptimization(List<String> scanPaths) {
        if (isRunning.getAndSet(true)) {
            System.out.println("优化器已在运行中");
            return;
        }

        System.out.println("=== 启动游戏优化系统 ===");
        printDeviceInfo();

        // 初始化优化引擎
        optimizer.initialize(device);
        
        // 阶段1：扫描游戏配置
        scanGameConfigs(scanPaths);
        
        // 阶段2：初始优化
        optimizeAllGames();
        
        // 阶段3：启动监控服务
        startMonitoringServices();
    }

    private void scanGameConfigs(List<String> paths) {
        System.out.println("开始扫描游戏配置文件...");
        
        paths.parallelStream().forEach(path -> {
            try {
                List<GameConfig> configs = configScanner.scan(path);
                configs.forEach(config -> {
                    optimizedGames.put(config.gameId, new OptimizedGame(config));
                    System.out.printf("发现游戏: %s (%s)%n", config.gameName, config.gameId);
                });
            } catch (IOException e) {
                System.err.println("扫描失败: " + path);
            }
        });
    }

    private void optimizeAllGames() {
        optimizedGames.values().forEach(game -> {
            try {
                GameConfig optimized = optimizer.optimize(game.originalConfig);
                game.updateOptimizedConfig(optimized);
                saveOptimizedConfig(optimized);
                
                System.out.printf("已优化: %s [FPS:%s 画质:%s]%n",
                    game.getGameName(),
                    optimized.get("frame_rate"),
                    optimized.get("graphics_quality"));
                
            } catch (Exception e) {
                System.err.println("优化失败: " + game.getGameId());
            }
        });
    }

    private void saveOptimizedConfig(GameConfig config) throws IOException {
        Path originalPath = Paths.get(config.filePath);
        String newFileName = originalPath.getFileName().toString()
            .replace(".", "_optimized.");
        Path optimizedPath = originalPath.resolveSibling(newFileName);
        
        if (config.filePath.endsWith(".ini")) {
            Properties props = new Properties();
            config.params.forEach(props::setProperty);
            props.store(Files.newOutputStream(optimizedPath), 
                "Optimized by AdvancedGameOptimizer");
        } else {
            Files.write(optimizedPath, 
                Collections.singleton(config.toJsonString()),
                StandardOpenOption.CREATE);
        }
    }

    private void startMonitoringServices() {
        // 每5分钟检查性能
        scheduler.scheduleAtFixedRate(() -> {
            if (isRunning.get()) {
                monitorAndReoptimize();
            }
        }, 5, 5, TimeUnit.MINUTES);
        
        // 每小时重新扫描游戏
        scheduler.scheduleAtFixedRate(() -> {
            if (isRunning.get()) {
                rescanGames();
            }
        }, 1, 1, TimeUnit.HOURS);
    }

    private void monitorAndReoptimize() {
        optimizedGames.values().forEach(game -> {
            PerformanceMetrics metrics = monitor.collectMetrics(game.getGameId());
            if (metrics.needReoptimization()) {
                System.out.println("检测到性能下降，重新优化: " + game.getGameName());
                optimizeGame(game);
            }
        });
    }

    private void rescanGames() {
        System.out.println("执行定期游戏重新扫描...");
        optimizedGames.keySet().forEach(gameId -> {
            OptimizedGame game = optimizedGames.get(gameId);
            try {
                GameConfig newConfig = configScanner.rescan(game.originalConfig.filePath);
                game.updateOriginalConfig(newConfig);
                optimizeGame(game);
            } catch (IOException e) {
                System.err.println("重新扫描失败: " + gameId);
            }
        });
    }

    private void optimizeGame(OptimizedGame game) {
        try {
            GameConfig optimized = optimizer.optimize(game.originalConfig);
            game.updateOptimizedConfig(optimized);
            saveOptimizedConfig(optimized);
        } catch (Exception e) {
            System.err.println("重新优化失败: " + game.getGameId());
        }
    }

    public void stop() {
        if (isRunning.getAndSet(false)) {
            scheduler.shutdown();
            System.out.println("游戏优化系统已停止");
        }
    }

    private void printDeviceInfo() {
        System.out.println("设备: " + device.deviceName);
        System.out.println("CPU: " + device.cpu);
        System.out.println("GPU: " + device.gpu);
        System.out.println("内存: " + device.ramGB + "GB");
        System.out.println("安卓: " + device.androidVersion + " (API " + device.apiLevel + ")");
        System.out.println("屏幕: " + device.screenRes + " @" + device.refreshRate + "Hz");
        System.out.println("性能等级: " + (device.isHighEnd ? "高端" : "中端"));
    }

    // 设备信息类
    private static class DeviceProfile {
        final String deviceName;
        final String model;
        final String cpu;
        final String gpu;
        final int ramGB;
        final int storageGB;
        final int androidVersion;
        final int apiLevel;
        final String screenRes;
        final int refreshRate;
        final boolean isHighEnd;
        final boolean supportsVulkan;

        DeviceProfile(String deviceName, String model, String cpu, String gpu,
                     int ramGB, int storageGB, int androidVersion, int apiLevel,
                     String screenRes, int refreshRate, boolean isHighEnd) {
            this.deviceName = deviceName;
            this.model = model;
            this.cpu = cpu;
            this.gpu = gpu;
            this.ramGB = ramGB;
            this.storageGB = storageGB;
            this.androidVersion = androidVersion;
            this.apiLevel = apiLevel;
            this.screenRes = screenRes;
            this.refreshRate = refreshRate;
            this.isHighEnd = isHighEnd;
            this.supportsVulkan = detectVulkanSupport(gpu, androidVersion);
        }

        private boolean detectVulkanSupport(String gpu, int androidVersion) {
            return androidVersion >= 14 && 
                  (gpu.contains("Adreno 7") || gpu.contains("Mali-G7"));
        }
    }

    // 游戏配置类
    private static class GameConfig {
        final String gameId;
        final String gameName;
        final String version;
        final String filePath;
        final Map<String, String> params;

        GameConfig(String gameId, String gameName, String version, 
                  String filePath, Map<String, String> params) {
            this.gameId = gameId;
            this.gameName = gameName;
            this.version = version;
            this.filePath = filePath;
            this.params = new HashMap<>(params);
        }

        String toJsonString() {
            return params.entrySet().stream()
                .map(e -> "\"" + e.getKey() + "\":\"" + e.getValue() + "\"")
                .collect(Collectors.joining(",", "{", "}"));
        }
    }

    // 优化后的游戏信息
    private static class OptimizedGame {
        private GameConfig originalConfig;
        private GameConfig optimizedConfig;
        private Date lastOptimized;

        OptimizedGame(GameConfig original) {
            this.originalConfig = original;
        }

        void updateOriginalConfig(GameConfig config) {
            this.originalConfig = config;
        }

        void updateOptimizedConfig(GameConfig config) {
            this.optimizedConfig = config;
            this.lastOptimized = new Date();
        }

        String getGameId() {
            return originalConfig.gameId;
        }

        String getGameName() {
            return originalConfig.gameName;
        }
    }

    // 配置扫描器
    private static class ConfigScanner {
        List<GameConfig> scan(String dirPath) throws IOException {
            return Files.walk(Paths.get(dirPath), 3)
                .filter(Files::isRegularFile)
                .filter(p -> p.toString().endsWith(".ini") || p.toString().endsWith(".json"))
                .map(p -> {
                    try {
                        Map<String, String> params = readConfigFile(p.toFile());
                        String gameId = params.getOrDefault("game_id", 
                            p.getFileName().toString().split("\\.")[0]);
                        String gameName = params.getOrDefault("game_name", 
                            "未知游戏_" + p.getParent().getFileName());
                        String version = params.getOrDefault("version", "1.0.0");
                        
                        return new GameConfig(gameId, gameName, version, 
                            p.toString(), params);
                    } catch (IOException e) {
                        throw new UncheckedIOException(e);
                    }
                })
                .collect(Collectors.toList());
        }

        GameConfig rescan(String filePath) throws IOException {
            File file = new File(filePath);
            Map<String, String> params = readConfigFile(file);
            return new GameConfig(
                params.getOrDefault("game_id", file.getName()),
                params.getOrDefault("game_name", "未知游戏"),
                params.getOrDefault("version", "1.0.0"),
                filePath,
                params
            );
        }

        private Map<String, String> readConfigFile(File file) throws IOException {
            Map<String, String> data = new HashMap<>();
            if (file.getName().endsWith(".ini")) {
                Properties props = new Properties();
                props.load(new FileInputStream(file));
                props.forEach((k, v) -> data.put(k.toString(), v.toString()));
            } else {
                String json = Files.readString(file.toPath())
                    .replaceAll("[{}\"]", "");
                Arrays.stream(json.split(","))
                    .map(pair -> pair.split(":", 2))
                    .filter(parts -> parts.length == 2)
                    .forEach(parts -> data.put(parts[0].trim(), parts[1].trim()));
            }
            return data;
        }
    }

    // 优化引擎
    private static class OptimizationEngine {
        private DeviceProfile device;

        void initialize(DeviceProfile device) {
            this.device = device;
        }

        GameConfig optimize(GameConfig original) {
            Map<String, String> optimized = new HashMap<>(original.params);
            
            // 基础优化
            optimized.put("optimized_device", device.deviceName);
            optimized.put("optimized_time", new Date().toString());
            
            // 图形设置
            applyGraphicsSettings(optimized);
            
            // 安卓版本特定优化
            applyAndroidOptimizations(optimized);
            
            // 游戏特定优化
            applyGameSpecificOptimizations(original.gameId, optimized);
            
            return new GameConfig(
                original.gameId,
                original.gameName,
                original.version,
                original.filePath,
                optimized
            );
        }

        private void applyGraphicsSettings(Map<String, String> config) {
            if (device.isHighEnd) {
                config.put("graphics_quality", "ultra");
                config.put("frame_rate", String.valueOf(device.refreshRate));
                config.put("resolution_scale", "1.0");
            } else {
                config.put("graphics_quality", "high");
                config.put("frame_rate", "60");
                config.put("resolution_scale", "0.8");
            }
            
            if (device.supportsVulkan) {
                config.put("graphics_api", "vulkan");
            }
        }

        private void applyAndroidOptimizations(Map<String, String> config) {
            if (device.androidVersion >= 15) {
                config.put("android15_optimized", "true");
                config.put("predictive_rendering", "true");
            } else if (device.androidVersion >= 14) {
                config.put("android14_optimized", "true");
                config.put("aggressive_memory_optimization", "true");
            }
        }

        private void applyGameSpecificOptimizations(String gameId, Map<String, String> config) {
            if (gameId.contains("pubg") || gameId.contains("peacekeeper")) {
                // 和平精英优化
                config.put("pubg_mobile_optimized", "true");
                config.put("shadow_quality", device.isHighEnd ? "high" : "medium");
                config.put("effect_quality", device.isHighEnd ? "ultra" : "high");
                
                if (device.androidVersion >= 14) {
                    config.put("android14_special_optimization", "true");
                }
            } else if (gameId.contains("cod") || gameId.contains("callofduty")) {
                // COD手游优化
                config.put("cod_mobile_optimized", "true");
                config.put("texture_quality", device.ramGB >= 8 ? "ultra" : "high");
            }
        }
    }

    // 性能监控
    private static class PerformanceMonitor {
        private final Map<String, PerformanceMetrics> metricsMap = new ConcurrentHashMap<>();

        PerformanceMetrics collectMetrics(String gameId) {
            // 模拟性能数据收集
            PerformanceMetrics metrics = new PerformanceMetrics(
                randomInt(50, 120),    // FPS
                randomInt(30, 90),     // GPU负载
                randomInt(40, 80),     // CPU负载
                randomDouble(35.0, 45.0) // 温度
            );
            metricsMap.put(gameId, metrics);
            return metrics;
        }

        private int randomInt(int min, int max) {
            return min + (int)(Math.random() * (max - min));
        }

        private double randomDouble(double min, double max) {
            return min + (Math.random() * (max - min));
        }
    }

    // 性能指标
    private static class PerformanceMetrics {
        final int fps;
        final int gpuUsage;
        final int cpuUsage;
        final double temperature;

        PerformanceMetrics(int fps, int gpuUsage, int cpuUsage, double temperature) {
            this.fps = fps;
            this.gpuUsage = gpuUsage;
            this.cpuUsage = cpuUsage;
            this.temperature = temperature;
        }

        boolean needReoptimization() {
            return fps < 50 || temperature > 42.0;
        }
    }

    // 使用示例
    public static void main(String[] args) {
        AdvancedGameOptimizer optimizer = new AdvancedGameOptimizer();
        
        // 设置扫描路径（示例）
        List<String> scanPaths = Arrays.asList(
            "/sdcard/Android/data/com.tencent.tmgp.pubgmhd",
            "/sdcard/Android/data/com.activision.callofduty.shooter"
        );
        
        // 启动优化系统
        optimizer.startFullOptimization(scanPaths);
        
        // 模拟运行1小时后停止
        try {
            TimeUnit.HOURS.sleep(1);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        } finally {
            optimizer.stop();
        }
    }
}
