using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Networking;
using UnityEngine.Serialization;
using TMPro;
using Mirror;

public class GameManager : NetworkBehaviour
{
    public static Team MyTeam { get; set; }
    public static MatchmadePlayer RedPlayer { get; set; }
    public static MatchmadePlayer BluePlayer { get; set; }
    /// <summary>Coin units from matchmaker <c>rc_prize</c>; used for in-game prize UI.</summary>
    public static int MatchRcPrizeCoins { get; set; }
    /// <summary>Set by dedicated server startup (e.g. CupidConnector parsing <c>-matchId</c>). PATCH is skipped if id ≤ 0 or secret is empty.</summary>
    public static int DedicatedMatchId { get; private set; }
    /// <summary>Sent as <c>X-Dedicated-Server-Secret</c>. From <c>-dedicatedSecret</c> arg or <c>DEDICATED_SERVER_SECRET</c> env.</summary>
    public static string DedicatedMatchSecret { get; private set; } = "";
    /// <summary>Base URL for internal match API (no trailing slash), default <c>http://127.0.0.1:2612</c>.</summary>
    public static string DedicatedInternalApiBase { get; private set; } = LoginManager.AuthBaseUrl;

    public static void ConfigureDedicatedMatchReporting(int matchId, string secret=null, string internalApiBaseUrl = null)
    {
        DedicatedMatchId = matchId;
        DedicatedMatchSecret = secret ?? "38516e39d3406225b7c3015a66e5d25c54e9b2024c0755212122bdcea3e3a328";
        if (!string.IsNullOrWhiteSpace(internalApiBaseUrl))
            DedicatedInternalApiBase = internalApiBaseUrl.TrimEnd('/');

        Logger.Log($"Configured dedicated match reporting for match id {matchId} with secret {DedicatedMatchSecret} and internal api base {DedicatedInternalApiBase}");
    }

    /// <summary>Outcome of <see cref="RequestDedicatedRematch"/> (POST <c>/internal/rematch</c>).</summary>
    public readonly struct DedicatedRematchResult
    {
        public readonly bool Success;
        public readonly long HttpStatusCode;
        public readonly MatchmadeResponse Response;
        public readonly string ErrorMessage;

        public DedicatedRematchResult(bool success, long httpStatusCode, MatchmadeResponse response, string errorMessage)
        {
            Success = success;
            HttpStatusCode = httpStatusCode;
            Response = response;
            ErrorMessage = errorMessage ?? "";
        }
    }

    /// <summary>
    /// Dedicated server only: POST <c>/internal/rematch</c> with <c>X-Dedicated-Server-Secret</c>.
    /// Blocks until the request finishes (same pattern as <see cref="ReportDedicatedMatchRoomClosed"/>).
    /// On HTTP 200, returns the same JSON envelope as a successful matchmaker GET room fill: <see cref="MatchmadeResponse"/>.
    /// </summary>
    /// <param name="userRedId"><c>users.id</c> for red.</param>
    /// <param name="userBlueId"><c>users.id</c> for blue; must differ from red.</param>
    /// <param name="entryFee">RC stake per player (non-negative).</param>
    /// <param name="secret">Overrides <see cref="DedicatedMatchSecret"/> when non-empty.</param>
    /// <param name="internalApiBaseUrl">Overrides <see cref="DedicatedInternalApiBase"/> when non-empty.</param>
    public static DedicatedRematchResult RequestDedicatedRematch(int userRedId, int userBlueId, int entryFee, string secret = null, string internalApiBaseUrl = null)
    {
        string s = string.IsNullOrEmpty(secret) ? DedicatedMatchSecret : secret;
        string baseUrl = string.IsNullOrEmpty(internalApiBaseUrl) ? DedicatedInternalApiBase : internalApiBaseUrl.TrimEnd('/');
        if (string.IsNullOrEmpty(s))
            return new DedicatedRematchResult(false, 0, null, "Missing dedicated server secret");
        if (string.IsNullOrEmpty(baseUrl))
            return new DedicatedRematchResult(false, 0, null, "Missing internal API base URL");

        string json = JsonUtility.ToJson(new DedicatedRematchRequestBody
        {
            user_red_id = userRedId,
            user_blue_id = userBlueId,
            entry_fee = entryFee
        });

        using (var req = DedicatedMatschInternalApi.BuildRematchRequest(baseUrl, s, json))
        {
            var op = req.SendWebRequest();
            while (!op.isDone)
                System.Threading.Thread.Sleep(16);

            string text = req.downloadHandler != null ? req.downloadHandler.text : "";
            long code = req.responseCode;

            if (req.result != UnityWebRequest.Result.Success &&
                req.result != UnityWebRequest.Result.ProtocolError)
            {
                string netErr = string.IsNullOrEmpty(req.error) ? "Network error" : req.error;
                Logger.Log("Dedicated rematch POST failed (transport): " + netErr + " " + req.url);
                return new DedicatedRematchResult(false, code, null, netErr);
            }

            if (code == 200)
            {
                try
                {
                    var env = JsonUtility.FromJson<MatchmadeResponse>(text);
                    if (env != null && env.ok)
                        return new DedicatedRematchResult(true, code, env, "");
                    string apiErr = TryParseRematchErrorMessage(text);
                    Logger.Log("Dedicated rematch POST 200 but ok=false or parse issue: " + text);
                    return new DedicatedRematchResult(false, code, env, string.IsNullOrEmpty(apiErr) ? "Unexpected response" : apiErr);
                }
                catch (Exception e)
                {
                    Logger.Log("Dedicated rematch POST: could not parse success body: " + e.Message + " body=" + text);
                    return new DedicatedRematchResult(false, code, null, e.Message);
                }
            }

            string err = TryParseRematchErrorMessage(text);
            if (string.IsNullOrEmpty(err))
                err = string.IsNullOrEmpty(text) ? "HTTP " + code : text;
            Logger.Log("Dedicated rematch POST failed: " + code + " " + err);
            return new DedicatedRematchResult(false, code, null, err);
        }
    }

    static string TryParseRematchErrorMessage(string json)
    {
        if (string.IsNullOrEmpty(json))
            return "";
        try
        {
            var err = JsonUtility.FromJson<DedicatedRematchErrorEnvelope>(json);
            if (err != null && !string.IsNullOrEmpty(err.error))
                return err.error;
        }
        catch
        {
            /* ignore */
        }
        return "";
    }

    /// <summary>Sets match <c>status</c> to <c>-1</c> (room closed). Safe to call from shutdown paths; runs synchronously so it completes before <c>Application.Quit</c>.</summary>
    public static void ReportDedicatedMatchRoomClosed()
    {
        if (_dedicatedRoomClosedReported || DedicatedMatchId <= 0 || string.IsNullOrEmpty(DedicatedMatchSecret))
            return;
        _dedicatedRoomClosedReported = true;

        if (DedicatedMatchId <= 0 || string.IsNullOrEmpty(DedicatedMatchSecret))
            return;

        using (var req = DedicatedMatschInternalApi.BuildRequest(DedicatedInternalApiBase, DedicatedMatchId, DedicatedMatchSecret, "{\"status\":-1}"))
        {
            var op = req.SendWebRequest();
            while (!op.isDone)
                System.Threading.Thread.Sleep(16);
            DedicatedMatschInternalApi.LogIfFailed(req);
        }
    }

    static bool _dedicatedRoomClosedReported;
    static string Iso8601UtcNow() => DateTime.UtcNow.ToString("yyyy-MM-dd'T'HH:mm:ss.fff'Z'", System.Globalization.CultureInfo.InvariantCulture);

    bool _dedicatedReportedRedJoin;
    bool _dedicatedReportedBlueJoin;
    bool _dedicatedReportedGameOver;

    public static Action<Team> OnTeamChanged;
    public static bool isMoving{
        get{
            return instance.IsMoving();
        }
    }
    [SyncVar]
    public bool m_isMoving =false;
    [SyncVar(hook = nameof(OnGameStartedChanged))]
    public bool gameStarted = false;
    [SyncVar]
    public bool isGameEnded = false;
    void OnGameStartedChanged(bool oldStarted, bool newStarted){
        if(newStarted){
            GameCanvas.instance.HideWaitingForOpponentPanel();
            if (AudioManager.instance != null)
                AudioManager.instance.SetCrowdNoiseType(CrowdNoiseType.Normal);
        }else{
            GameCanvas.instance.ShowWaitingForOpponentPanel();
        }
    }

    [SyncVar(hook = nameof(OnSelectedTeamChanged))]
    public Team SelectedTeam = Team.Red;
    void OnSelectedTeamChanged(Team oldTeam, Team newTeam){
        Logger.Log($"Selected team changed from {oldTeam} to {newTeam}");
        OnTeamChanged?.Invoke(newTeam);

        if (!isClient || !gameStarted || oldTeam == newTeam)
            return;
        if (AudioManager.instance != null)
            AudioManager.instance.PlayRefereeWhistle();
    }
    public static bool NoPuckSelected {
        get{
            return instance.selectedPuck == null;
        }
    }

    public int turnTimer = 10;
    [SyncVar]
    public float turnTimerCounter;
    public Rigidbody2D ball;
    public float puckForce = 20f;
    public AnimationCurve puckForceCurve = AnimationCurve.Linear(0,3,1,1);
    public float ballMoveTime = 3f;
    public float puckDragClampMax = 5f;
    public float puckDragMinClamp = 1f;

    [Header("Field bounds")]
    [Tooltip("Pitch width (X). Length (Y) is fieldSize × 2. Origin-centered; used for boundary-based camera zoom while dragging.")]
    public float fieldSize = 10f;
    [Tooltip("Exponent on distance-to-boundary (0–1). >1 = subtle at center, ramps up mostly near the boundary; 1 = linear.")]
    [Min(0.01f)] public float cameraStretchBoundaryExponent = 2.5f;

    [SyncVar(hook = nameof(OnScoreChanged))]
    public int redScore=0;
    [SyncVar(hook = nameof(OnScoreChanged))]
    public int blueScore=0;

    [Header("Effects")]
    public ParticleSystem[] redGoalEffects;
    public ParticleSystem[] blueGoalEffects;

    [Header("UI")]
    public TMP_Text redScoreText;
    public TMP_Text blueScoreText;
    public CanvasGroupUtils blueTimerGroup;
    [FormerlySerializedAs("timerGroup")] public CanvasGroupUtils redTimerGroup;
    [Header("Timer Flash Settings")]
    [Tooltip("Minimum flash speed when timer is at 5 seconds")]
    public float minFlashSpeed = 10f;
    [Tooltip("Maximum flash speed when timer is at 0 seconds")]
    public float maxFlashSpeed = 20f;

    [Header("Misc")]
    public List<Puck> pucks = new List<Puck>();
    public float curPuckPullForce;
    [SyncVar]
    public int hitCounter = 0;


    

    public static GameManager instance;

    public float puckMass{
        get{
            if(pucks.Count > 0){return pucks[0].rb.mass;}else{return 1f;}
        }set{
            foreach(Puck puck in pucks){
                puck.rb.mass = value;
            }
        }
    }

    public float puckDrag{
        get{
            if(pucks.Count > 0){return pucks[0].rb.linearDamping;}else{return 0f;}
        }set{
            foreach(Puck puck in pucks){
                puck.rb.linearDamping = value;
            }
        }
    }
    void Awake()
    {
        instance = this;
    }

    /// <summary>
    /// Blends from <paramref name="centerMultiplier"/> at the pitch center to <paramref name="boundaryMultiplier"/>
    /// at the boundary (and beyond), using the max normalized axis distance inside the field rectangle.
    /// </summary>
    public float GetCameraStretchDistanceMultiplier(Vector3 puckWorldPosition, float centerMultiplier = 0.3f, float boundaryMultiplier = 1f)
    {
        if (fieldSize <= Mathf.Epsilon)
            return boundaryMultiplier;

        float halfWidth = fieldSize * 0.5f;
        float halfHeight = fieldSize;

        float nx = Mathf.Abs(puckWorldPosition.x) / halfWidth;
        float ny = Mathf.Abs(puckWorldPosition.y) / halfHeight;
        float t = Mathf.Clamp01(Mathf.Max(nx, ny));
        float shaped = Mathf.Pow(t, cameraStretchBoundaryExponent);
        return Mathf.Lerp(centerMultiplier, boundaryMultiplier, shaped);
    }

    void OnDrawGizmos()
    {
        if (fieldSize <= Mathf.Epsilon)
            return;

        float halfWidth = fieldSize * 0.5f;
        float halfHeight = fieldSize;
        Vector3 c = Vector3.zero;
        Vector3 right = new Vector3(halfWidth, 0f, 0f);
        Vector3 up = new Vector3(0f, halfHeight, 0f);

        Vector3 a = c - right - up;
        Vector3 b = c + right - up;
        Vector3 d = c + right + up;
        Vector3 e = c - right + up;

        Color prev = Gizmos.color;
        Gizmos.color = new Color(1f, 0.92f, 0.016f, 0.85f);
        Gizmos.DrawLine(a, b);
        Gizmos.DrawLine(b, d);
        Gizmos.DrawLine(d, e);
        Gizmos.DrawLine(e, a);
        Gizmos.color = prev;
    }

    /// <summary>Server-only: called from <see cref="NetPlayer.CmdSetTeam"/> after <c>myTeam</c> is set.</summary>
    public void OnMatchPlayerTeamAssigned(Team team)
    {
        if (!isServer || DedicatedMatchId <= 0 || string.IsNullOrEmpty(DedicatedMatchSecret))
            return;

        int n = FindObjectsByType<NetPlayer>(FindObjectsSortMode.None).Length;
        string ts = Iso8601UtcNow();

        if (team == Team.Red && !_dedicatedReportedRedJoin)
        {
            _dedicatedReportedRedJoin = true;
            int status = n >= 2 ? 2 : 1;
            string json = "{\"red_joined_at\":\"" + ts + "\",\"status\":" + status + "}";
            StartCoroutine(DedicatedMatchPatch(DedicatedInternalApiBase, DedicatedMatchId, DedicatedMatchSecret, json));
            // StartCoroutine(DedicatedMatchInternalApi.Patch(DedicatedInternalApiBase, DedicatedMatchId, DedicatedMatchSecret, json));
        }
        else if (team == Team.Blue && !_dedicatedReportedBlueJoin)
        {
            _dedicatedReportedBlueJoin = true;
            int status = n >= 2 ? 2 : 1;
            string json = "{\"blue_joined_at\":\"" + ts + "\",\"status\":" + status + "}";
            StartCoroutine(DedicatedMatchPatch(DedicatedInternalApiBase, DedicatedMatchId, DedicatedMatchSecret, json));
        }
    }

    IEnumerator DedicatedMatchPatch(string baseUrl, int matchId, string secret, string json){
        if (matchId <= 0 || string.IsNullOrEmpty(secret))
            yield break;

        using (var req = DedicatedMatschInternalApi.BuildRequest(baseUrl, matchId, secret, json))
        {
            yield return req.SendWebRequest();
            DedicatedMatschInternalApi.LogIfFailed(req);
        }
    }

    public IEnumerator DedicatedMatchPatchWinner(string baseUrl, int matchId, string secret, string winnerLower)
    {
        if (matchId <= 0 || string.IsNullOrEmpty(secret))
            yield break;

        string jsonBody = "{\"winner\":\"" + winnerLower + "\"}";
        using (var req = DedicatedMatschInternalApi.BuildWinnerRequest(baseUrl, matchId, secret, jsonBody))
        {
            yield return req.SendWebRequest();
            DedicatedMatschInternalApi.LogWinnerPatchResult(req);
        }
    }

    void ReportDedicatedMatchGameOver(Team winningTeam)
    {
        if (!isServer || DedicatedMatchId <= 0 || string.IsNullOrEmpty(DedicatedMatchSecret) || _dedicatedReportedGameOver)
            return;
        _dedicatedReportedGameOver = true;
        StartCoroutine(CoReportDedicatedMatchGameOver(winningTeam));
    }

    IEnumerator CoReportDedicatedMatchGameOver(Team winningTeam)
    {
        yield return DedicatedMatchPatch(DedicatedInternalApiBase, DedicatedMatchId, DedicatedMatchSecret, "{\"status\":3}");
        string winner = winningTeam == Team.Red ? "red" : "blue";
        yield return DedicatedMatchPatchWinner(DedicatedInternalApiBase, DedicatedMatchId, DedicatedMatchSecret, winner);
    }


    

    void Start()
    {
        GameEvents.OnSelectedPuckChanged?.Invoke(null);

        #if UNITY_EDITOR

        #else
            Application.targetFrameRate = isServer ? 30 : 100;
        #endif
    }


    public void RegisterPuck(Puck puck){
        pucks.Add(puck);
    }

    public void DisposePuck(Puck puck){
        pucks.Remove(puck);
    }



    [SyncVar(hook = nameof(OnSelectedPuckChanged))]
    [SerializeField]Puck selectedPuck;

    void OnSelectedPuckChanged(Puck oldPuck, Puck newPuck){
        // Logger.Log($"Selected puck changed from {oldPuck} to {newPuck}");
        GameEvents.OnSelectedPuckChanged?.Invoke(newPuck);
        if (newPuck == null && isClient && CameraEffects.instance != null){
            CameraEffects.instance.ReleaseStretchFactor();
        }
    }
    public static Puck SelectedPuck{
        get{
            return instance != null ? instance.selectedPuck : null;
        }

        set{
            if (instance == null)
                return;
            instance.SetSelectedPuck(value);
        }
    }
    void SetSelectedPuck(Puck puck)
    {
        selectedPuck = puck;
        GameEvents.OnSelectedPuckChanged?.Invoke(puck);
    }

    public Puck GetClosestPuck(Vector2 position){
        if(IsMoving()){return null;} //Do not do anything if shits moving

        // Convert screen position to world position
        // Vector3 worldPosition = Camera.main.ScreenToWorldPoint(new Vector3(position.x, position.y, Camera.main.nearClipPlane));
        
        // Find all pucks in the scene
        Puck[] pucks = FindObjectsOfType<Puck>();
        float minDistance = float.MaxValue;
        Puck closestPuck = null;

        foreach (Puck puck in pucks)
        {
            if (puck == null)
                continue;
            if(puck.team != SelectedTeam){continue;}
            float dist = Vector2.Distance(position, puck.transform.position);
            if (dist < minDistance)
            {
                minDistance = dist;
                closestPuck = puck;
            }
        }

        return closestPuck;
    }

    Coroutine coroutinePostLaunch;
    public void OnPointerUp(Vector2 direction)
    {
        if(selectedPuck == null){
            return;
        }

        if(direction.magnitude < puckDragMinClamp){
            selectedPuck = null;
            GameEvents.OnSelectedPuckChanged?.Invoke(null);
            return;
        }
        if(coroutinePostLaunch != null){
            StopCoroutine(coroutinePostLaunch);
        }
        coroutinePostLaunch = StartCoroutine(CoroutinePostLaunch());
        curPuckPullForce = direction.magnitude;
        float force = puckForce * puckForceCurve.Evaluate(curPuckPullForce);
        Logger.Log($"force = {puckForce} * {puckForceCurve.Evaluate(curPuckPullForce)} = {force}");
        Logger.Log($"launching puck at {direction} with {force * -direction} force");
        selectedPuck.GetComponent<Rigidbody2D>().AddForce(-direction * force, ForceMode2D.Impulse);
        hitCounter++;

        selectedPuck = null;
        GameEvents.OnSelectedPuckChanged?.Invoke(null);
        
        SwitchTeams();
    }

    void SwitchTeams(){
        if(!isServer){
            Debug.LogWarning("SwitchTeams called on client, skipping");
            return;
        }

        StartCoroutine(CoroutineSwitchTeams());
    }

    bool switchingTeams=false;
    IEnumerator CoroutineSwitchTeams(){
        switchingTeams=true;
        for(int i=0; i < 3; i++){
            yield return null;
        }
        while(m_isMoving){
            yield return null;
        }

        turnTimerCounter = 0;
        // Clear any active drag/selection before changing turns.
        // This prevents stale selected-puck visuals when the timer expires mid-hold.
        if (selectedPuck != null){
            SetSelectedPuck(null);
        }

        SelectedTeam = SelectedTeam == Team.Red ? Team.Blue : Team.Red;
        OnTeamChanged?.Invoke(SelectedTeam);

        switchingTeams=false;
    }


    IEnumerator CoroutinePostLaunch(){
        float t = 0;
        while ( t < 1){
            t += Time.deltaTime / ballMoveTime;
            ball.linearDamping = Mathf.Lerp(0, 10, t);
            yield return null;
        }
    }

    bool IsMoving(){
        if(freezeInput){return true;}
        float minMagnitude = 0.01f;
        foreach(Puck puck in pucks){
            if(puck.rb.linearVelocity.magnitude > minMagnitude){
                return true;
            }
        }

        if(ball.linearVelocity.magnitude > minMagnitude){
            return true;
        }

        return false;
    }

    void Update()
    {
        if(isServer){
            m_isMoving=IsMoving();

            HandleTurnTimer();

            if(!gameStarted){

                NetPlayer[] players = FindObjectsOfType<NetPlayer>();
                #if UNITY_EDITOR
                    if(Input.GetKeyDown(KeyCode.Space)){
                        gameStarted = true;
                        GameCanvas.instance.HideWaitingForOpponentPanel();
                        Logger.Log("Game started On Server, EDITOR ONLY, DEBUG ONLY");
                    }
                #endif
                if (players.Length == 2)
                {
                    gameStarted = true;
                    GameCanvas.instance.HideWaitingForOpponentPanel();
                    Logger.Log("Game started On Server");
                }
            }
        }

        UpdateLocalTurnTimerBeep();
        UpdateTimerColor();
    }

    void UpdateLocalTurnTimerBeep()
    {
        if (!isClient || NetPlayer.localPlayer == null)
            return;

        if (!gameStarted || SelectedTeam != NetPlayer.localPlayer.myTeam)
        {
            _lastTurnTimerBeepFloor = -1;
            return;
        }

        if (m_isMoving || turnTimerCounter >= turnTimer)
            return;

        float remaining = turnTimer - turnTimerCounter;
        int floorSec = Mathf.FloorToInt(remaining);

        if (floorSec != _lastTurnTimerBeepFloor)
        {
            if (_lastTurnTimerBeepFloor >= 0 && floorSec < _lastTurnTimerBeepFloor
                && AudioManager.instance != null)
                AudioManager.instance.PlayTimerBeep();

            _lastTurnTimerBeepFloor = floorSec;
        }
    }

    void HandleTurnTimer(){
        if(turnTimerCounter < turnTimer){
            if(!isMoving && !switchingTeams && gameStarted){
                turnTimerCounter += Time.deltaTime;
            }
        }else{
            SwitchTeams();
            turnTimerCounter = 0;
        }
    }

    float flashPhase = 0f;
    float lastUpdateTime = 0f;
    float lastRemainingTime = 10f;

    int _lastTurnTimerBeepFloor = -1;
    
    void UpdateTimerColor(){
        float remainingTime = turnTimer - turnTimerCounter;

        // Detect timer reset: if remainingTime jumped from low to high, reset phase
        if(remainingTime > lastRemainingTime + 2f){
            flashPhase = 0f;
            lastUpdateTime = 0f;
        }
        lastRemainingTime = remainingTime;

        CanvasGroupUtils activeTimerGroup = SelectedTeam == Team.Red ? redTimerGroup : blueTimerGroup;
        CanvasGroupUtils inactiveTimerGroup = SelectedTeam == Team.Red ? blueTimerGroup : redTimerGroup;

        if(inactiveTimerGroup != null){
            inactiveTimerGroup.overrideColor = Color.white;
        }

        if(activeTimerGroup == null){
            if(remainingTime >= 5f || !gameStarted){
                flashPhase = 0f;
                lastUpdateTime = 0f;
            }
            return;
        }

        if(remainingTime < 5f && gameStarted){
            // Calculate intensity based on how close timer is to 0
            // Intensity increases from 0 to 1 as timer goes from 5 to 0
            float intensity = 1f - (remainingTime / 5f);

            // Create flashing effect using sine wave
            // Flash speed increases as timer approaches 0
            float flashSpeed = Mathf.Lerp(minFlashSpeed, maxFlashSpeed, intensity);

            // Update phase based on delta time and current flash speed
            // This ensures smooth flashing that resets with the timer
            if(lastUpdateTime > 0f){
                float deltaTime = Time.time - lastUpdateTime;
                flashPhase += flashSpeed * deltaTime;
            } else {
                // First frame in warning zone, initialize phase
                flashPhase = 0f;
            }
            lastUpdateTime = Time.time;

            float flashValue = (Mathf.Sin(flashPhase) + 1f) * 0.5f; // 0 to 1

            // Combine intensity with flash for final red intensity
            // As timer approaches 0, intensity increases and flash becomes more prominent
            float finalRedIntensity = intensity * (0.3f + flashValue * 0.7f); // Range: intensity*0.3 to intensity*1

            // Lerp between white and red based on final intensity, keeping alpha at 1
            Color white = Color.white;
            Color red = Color.red;
            activeTimerGroup.overrideColor = Color.Lerp(white, red, finalRedIntensity);
        }else{
            // Reset phase when timer is above 5 seconds or game hasn't started
            flashPhase = 0f;
            lastUpdateTime = 0f;
            activeTimerGroup.overrideColor = Color.white;
        }
    }


    Team GetOpposingTeam(Team team){
        return team == Team.Red ? Team.Blue : Team.Red;
    }

    void SetKickoffTeam(Team kickoffTeam){
        turnTimerCounter = 0;
        SelectedTeam = kickoffTeam;
        OnTeamChanged?.Invoke(SelectedTeam);
    }

    public void OnGoal(Team team){
        if(!isServer){
            Debug.LogWarning("OnGoal called on client, skipping");
            return;}
        if(!CanProcessGoal){
            return;
        }

        RpcPlayGoalScoredSfx();
        
        freezeInput=true;
        Team concedingTeam = team;

        if(hitCounter == 1){
            //kickoff goal
            Logger.Log("Kickoff goal");
            SetKickoffTeam(concedingTeam);
            StartCoroutine(CoroutineOnGoal(team,true));//true = Kickoff goal, reset only the ball
        hitCounter = 0;

            return;
        }
        if(team == Team.Blue){
            blueScore++;
            blueScoreText.text = blueScore.ToString();
            PlayGoalEffects(Team.Blue);
            Logger.Log($"Blue goal scored, blue score is now {blueScore}");
        }else{
            redScore++;
            redScoreText.text = redScore.ToString();
            PlayGoalEffects(Team.Red);
            Logger.Log($"Red goal scored, red score is now {redScore}");
        }

        SetKickoffTeam(concedingTeam);


        if(blueScore >= 3){
            isGameEnded = true;
            ReportDedicatedMatchGameOver(Team.Blue);
            RpcGameOver(Team.Blue);
            gameOver(Team.Blue);
        }else if(redScore >= 3){
            isGameEnded = true;
            ReportDedicatedMatchGameOver(Team.Red);
            RpcGameOver(Team.Red);
            gameOver(Team.Red);
        }else{
            StartCoroutine(CoroutineOnGoal(team));
        }

        hitCounter = 0;
    }

    void PlayGoalEffects(Team team){
        if(isServer){
            m_PlayGoalEffects(team);
            RpcPlayGoalEffects(team);
        }else{
            CmdPlayGoalEffects(team);
        }
    }

    [Command]
    void CmdPlayGoalEffects(Team team){
        m_PlayGoalEffects(team);
        RpcPlayGoalEffects(team);
    }

    [ClientRpc]
    void RpcPlayGoalEffects(Team team){
        m_PlayGoalEffects(team);
    }

    void m_PlayGoalEffects(Team team){
        if(team == Team.Blue){
            foreach(ParticleSystem effect in blueGoalEffects){
                effect.Play();
            }
        }else{
            foreach(ParticleSystem effect in redGoalEffects){
                effect.Play();
            }
        }
    }

    [ClientRpc]
    void RpcPlayGoalScoredSfx()
    {
        if (AudioManager.instance != null)
            AudioManager.instance.PlayGoalScoredSfxSequence();
    }

    [ClientRpc]
    void RpcGameOver(Team team){
        gameOver(team);
    }

    void gameOver(Team team){
        StartCoroutine(CoroutineGameOver(team));
    }

    IEnumerator CoroutineGameOver(Team team){
        yield return new WaitForSeconds(2f);
        yield return CoroutineFetchBothPlayersL10();

       // StopClient();

        LevelLoadManager.instance.SetupGameOver(team,redScore,blueScore);
        GameOverCanvas.instance.Show(team, MyTeam, redScore, blueScore);
        // LevelLoadManager.LoadLevel("MainMenu");
    }

    bool _thirdPlayerLeaveTriggered;

    /// <summary>
    /// Called when the local client spawns into a match. If three <see cref="NetPlayer"/> instances exist
    /// (matchmaker sent an extra client into a full room), disconnect and return to the main menu.
    /// </summary>
    public void OnLocalPlayerJoinedMatch()
    {
        if (!isClient || _thirdPlayerLeaveTriggered)
            return;
        StartCoroutine(CoLeaveIfThirdPlayer());
    }

    IEnumerator CoLeaveIfThirdPlayer()
    {
        const int maxFrames = 30;
        for (int i = 0; i < maxFrames; i++)
        {
            yield return null;
            if (FindObjectsByType<NetPlayer>(FindObjectsSortMode.None).Length >= 3)
            {
                _thirdPlayerLeaveTriggered = true;
                Logger.Log("Third player in a 2-player match (matchmaker bug); leaving to main menu.");
                if (LevelLoadManager.instance != null)
                    LevelLoadManager.instance.Leave();
                else
                    LevelLoadManager.LoadLevel("MainMenu");
                yield break;
            }
        }
    }

    public void StopClient(){
        try{
            NetworkManager.singleton.StopClient();
        }catch(Exception e){
            Logger.Log("Error stopping client: " + e.Message);
        }
    }

    IEnumerator CoroutineFetchBothPlayersL10()
    {
        var my = LevelLoadManager.myPlayer;
        var opp = LevelLoadManager.opponentPlayer;
        if (my == null || opp == null)
            yield break;

        string baseUrl = (DedicatedInternalApiBase ?? "").TrimEnd('/');
        if (string.IsNullOrEmpty(baseUrl))
            yield break;

        if (my.UserId > 0){
            yield return CoFetchPlayerL10Apply(baseUrl, my);
        }
        if (opp.UserId > 0 && opp.UserId != my.UserId){
            yield return CoFetchPlayerL10Apply(baseUrl, opp);
        }
        

        LevelLoadManager.myPlayer = my;
        LevelLoadManager.opponentPlayer = opp;
    }

    static IEnumerator CoFetchPlayerL10Apply(string baseUrl, MatchmadePlayer player)
    {
        string url = baseUrl + "/players/" + player.UserId + "/l10";
        using (var req = UnityWebRequest.Get(url))
        {
            yield return req.SendWebRequest();
            if (req.result != UnityWebRequest.Result.Success)
            {
                Logger.Log("Player L10 fetch failed: " + req.error + " " + url);
                yield break;
            }

            var resp = JsonUtility.FromJson<PlayerL10Response>(req.downloadHandler.text);
            if (resp != null && resp.ok)
            {
                player.l10_wins = resp.l10_wins;
                player.l10_losses = resp.l10_losses;
            }
        }
    }

    [Serializable]
    class PlayerL10Response
    {
        public bool ok;
        public int player_id;
        public int l10_wins;
        public int l10_losses;
    }

    bool freezeInput = false;
    public bool CanProcessGoal => isServer && !freezeInput && !isGameEnded;

    IEnumerator CoroutineOnGoal(Team team, bool kickoff = false){
        if(coroutinePostLaunch!=null){
            StopCoroutine(coroutinePostLaunch);
        }

        float t=0;
        while(t < 1){
            t +=Time.deltaTime * 2f;
            ball.linearDamping = Mathf.Lerp(0, 100, t);
            yield return null;
        }

        yield return new WaitForSeconds(2f);

        Reset();
    }

    void OnScoreChanged(int oldScore, int newScore){
        Logger.Log($"Score changed from {oldScore} to {newScore}");
        redScoreText.text = redScore.ToString();
        blueScoreText.text = blueScore.ToString();
    }


    public void Reset(bool kickoff = false)
    {
        StartCoroutine(CoroutineReset(kickoff));
    }

    IEnumerator CoroutineReset(bool kickoff = false){
        float resetDuration = 0.5f;
        if(!kickoff){
            foreach(Puck puck in pucks){
                puck.Reset(null, resetDuration);
            }
        }

        ball.GetComponent<Ball>().Reset(resetDuration);

        yield return new WaitForSeconds(resetDuration);

        freezeInput=false;
    }


   

}

/// <summary>Headless dedicated server → matchmaker internal PATCH. Runs only where started (server-side coroutines).</summary>
static class DedicatedMatschInternalApi
{

    public static UnityWebRequest BuildRequest(string baseUrl, int matchId, string secret, string jsonBody)
    {
        string url = baseUrl.TrimEnd('/') + "/internal/match/" + matchId;
        return BuildPatchJson(url, secret, jsonBody);
    }

    public static UnityWebRequest BuildWinnerRequest(string baseUrl, int matchId, string secret, string jsonBody)
    {
        string url = baseUrl.TrimEnd('/') + "/internal/match/" + matchId + "/winner";
        return BuildPatchJson(url, secret, jsonBody);
    }

    public static UnityWebRequest BuildRematchRequest(string baseUrl, string secret, string jsonBody)
    {
        string url = baseUrl.TrimEnd('/') + "/internal/rematch";
        byte[] bodyRaw = Encoding.UTF8.GetBytes(jsonBody);
        var req = new UnityWebRequest(url, UnityWebRequest.kHttpVerbPOST)
        {
            uploadHandler = new UploadHandlerRaw(bodyRaw),
            downloadHandler = new DownloadHandlerBuffer()
        };
        req.SetRequestHeader("Content-Type", "application/json");
        req.SetRequestHeader("X-Dedicated-Server-Secret", secret);
        return req;
    }

    static UnityWebRequest BuildPatchJson(string url, string secret, string jsonBody)
    {
        byte[] bodyRaw = Encoding.UTF8.GetBytes(jsonBody);
        var req = new UnityWebRequest(url, "PATCH")
        {
            uploadHandler = new UploadHandlerRaw(bodyRaw),
            downloadHandler = new DownloadHandlerBuffer()
        };
        req.SetRequestHeader("Content-Type", "application/json");
        req.SetRequestHeader("X-Dedicated-Server-Secret", secret);
        return req;
    }

    public static void LogIfFailed(UnityWebRequest req)
    {
        if (req.result == UnityWebRequest.Result.Success){
            Logger.Log("Dedicated match PATCH success: " + req.responseCode + " " + (req.downloadHandler != null ? req.downloadHandler.text : ""));
        }else{
            Logger.Log("Dedicated match PATCH failed: " + req.responseCode + " " + req.error + " " + (req.downloadHandler != null ? req.downloadHandler.text : ""));
            Logger.Log("More details : " + req.url + " " + req.method + " " + req.uploadHandler.data + " " + req.downloadHandler.text);
        }
    }

    /// <summary>Handles <c>PATCH /internal/match/:id/winner</c>: 200 parses economy; 409 idempotent (already paid).</summary>
    public static void LogWinnerPatchResult(UnityWebRequest req)
    {
        long code = req.responseCode;
        string body = req.downloadHandler != null ? req.downloadHandler.text : "";

        if (code == 200 && req.result == UnityWebRequest.Result.Success)
        {
            try
            {
                var parsed = JsonUtility.FromJson<DedicatedWinnerPatchResponse>(body);
                if (parsed != null && parsed.ok && parsed.economy != null)
                    GameManager.MatchRcPrizeCoins = parsed.economy.rc_prize;
            }
            catch (Exception e)
            {
                Logger.Log("Dedicated winner PATCH: could not parse economy: " + e.Message + " body=" + body);
            }

            Logger.Log("Dedicated match winner PATCH success: " + code + " " + body);
            return;
        }

        if (code == 409)
        {
            Logger.Log("Dedicated match winner PATCH: winner already recorded (409 idempotent), no second payout. " + body);
            return;
        }

        Logger.Log("Dedicated match winner PATCH failed: " + code + " " + req.error + " " + body);
        Logger.Log("More details : " + req.url + " " + req.method + " " + body);
    }
}

[Serializable]
class DedicatedWinnerPatchEconomy
{
    public int entry_fee_rc;
    public int rc_prize;
    public int participant_cc;
}

[Serializable]
class DedicatedWinnerPatchResponse
{
    public bool ok;
    public int id;
    public int winner_id;
    public DedicatedWinnerPatchEconomy economy;
}

[Serializable]
class DedicatedRematchRequestBody
{
    public int user_red_id;
    public int user_blue_id;
    public int entry_fee;
}

[Serializable]
class DedicatedRematchErrorEnvelope
{
    public bool ok;
    public string error;
}