using System;
using GameServer.Client;
using UnityEngine;

public sealed class StartupSettingsApplier : MonoBehaviour
{
    private const string BootstrapObjectName = "[StartupSettingsApplier]";
    private static StartupSettingsApplier _instance;
    private bool _started;

    [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]
    private static void Bootstrap()
    {
        if (_instance != null)
        {
            return;
        }

        GameObject go = new GameObject(BootstrapObjectName);
        _instance = go.AddComponent<StartupSettingsApplier>();
        DontDestroyOnLoad(go);
    }

    private void Start()
    {
        if (_started)
        {
            return;
        }

        _started = true;
        ApplyStartupSettings();
        StartCoroutine(SyncLeaderboardConsentRoutine());
    }

    private void ApplyStartupSettings()
    {
        ApplyAndroidLandscapeOrientation();
        ApplyStartupFrameRate();
        graphicSettings.ApplySavedDisplaySettingsAtStartup(this);
        ApplySavedAudioSettings();
    }

    // 启动即应用帧率。原本 targetFrameRate 只在设置面板 graphicSettings.Start() 里设置，
    // 而设置面板不在启动/gameplay 场景中，导致移动端启动后一直停在 Unity 默认 30fps —
    // 触摸每帧才采样一次（~33ms），表现为点击延迟大、快速连点丢按键。
    // 这里在启动时读取与设置面板相同的 PlayerPrefs（frameRateIndex），无存档时默认 90，
    // 让帧率从进游戏起就正确，且玩家改过的设置下次启动立即生效。不改变原有设置逻辑。
    private void ApplyStartupFrameRate()
    {
        int[] fpsValues = { 24, 30, 60, 90, 120, 144, 165, 210, 240, 300 };
        int index = PlayerPrefs.GetInt("frameRateIndex", -999);

        if (index < 0 || index > fpsValues.Length + 1)
        {
            index = 3; // 默认 90，与 graphicSettings 设置面板一致
        }

        if (index < fpsValues.Length)
        {
            QualitySettings.vSyncCount = 0;
            Application.targetFrameRate = fpsValues[index];
        }
        else if (index == fpsValues.Length)
        {
            QualitySettings.vSyncCount = 0;
            Application.targetFrameRate = -1; // 无限制
        }
        else
        {
            QualitySettings.vSyncCount = 1; // 垂直同步
            Application.targetFrameRate = -1;
        }
    }

    private void ApplyAndroidLandscapeOrientation()
    {
#if UNITY_ANDROID && !UNITY_EDITOR
        Screen.autorotateToPortrait = false;
        Screen.autorotateToPortraitUpsideDown = false;
        Screen.autorotateToLandscapeLeft = true;
        Screen.autorotateToLandscapeRight = true;
        Screen.orientation = ScreenOrientation.AutoRotation;
#endif
    }

    private void ApplySavedAudioSettings()
    {
        audioSettingsPreloader[] preloaders = FindObjectsByType<audioSettingsPreloader>(FindObjectsInactive.Include, FindObjectsSortMode.None);
        for (int i = 0; i < preloaders.Length; i++)
        {
            audioSettingsPreloader preloader = preloaders[i];
            if (preloader == null)
            {
                continue;
            }

            try
            {
                preloader.ApplyAudioSettings();
            }
            catch (Exception ex)
            {
                Debug.LogWarning($"[StartupSettingsApplier] Failed to apply audio settings via scene preloader: {ex.Message}");
            }
        }
    }

    private System.Collections.IEnumerator SyncLeaderboardConsentRoutine()
    {
        float timeoutAt = Time.realtimeSinceStartup + 8f;
        while (NetworkManager.Instance == null && Time.realtimeSinceStartup < timeoutAt)
        {
            yield return null;
        }

        NetworkManager networkManager = NetworkManager.Instance;
        if (networkManager == null)
        {
            yield break;
        }

        bool isJoined = LeaderboardConsentUtility.HasLeaderboardConsent();
        var task = networkManager.UpdateLeaderboardMembership(isJoined);
        while (!task.IsCompleted)
        {
            yield return null;
        }

        if (task.IsFaulted)
        {
            Exception ex = task.Exception;
            Debug.LogWarning($"[StartupSettingsApplier] Failed to sync leaderboard consent on startup: {ex?.GetBaseException().Message}");
            yield break;
        }

        LeaderboardMembershipResponse response = task.Result;
        if (response != null)
        {
            LeaderboardConsentUtility.SetLeaderboardConsent(response.is_joined);
        }
    }
}