using System;
using System.Collections;
using System.Collections.Generic;
using Mirror;
using UnityEngine;
using UnityEngine.UI;
using Random = UnityEngine.Random;

public class SpaceshipNetworkBot : NetworkBehaviour
{

    public string[] Names;
    [SyncVar (hook = nameof(OnPnameChanged))]
    public string pname;
    public Text nameTxt;
    public float movingSpeed;
    public float minSpeed;
    public float maxSpeed;
    public Transform curTarget;
    public TrailMgrBot trailMgr;
    public GameObject DeathEffect;
    public LayerMask pickupsLayer;
    [SyncVar]
    public int Scores = 0;

    [SyncVar(hook = nameof(OnSetupIndexChanged))]
    public int SelectedSetupIndex;
    void OnSetupIndexChanged(int old, int value){
        GetComponent<SpriteRenderer>().sprite = botSetups[value].skins[SelectedSkinIndex];
    }

    [SyncVar(hook = nameof(OnSkinIndexChanged))]
    public int SelectedSkinIndex;
    void OnSkinIndexChanged(int old, int value){
        GetComponent<SpriteRenderer>().sprite = botSetups[SelectedSetupIndex].skins[value];
    }

    public float up;
    public BotSetup[] botSetups;
    void OnPnameChanged(string oldName, string newName){
        nameTxt.text = newName;
    }
    
    public void InitRandomBot(){
        pname = BotsHiveMind.LeaseName(pname.Length > 0 ? pname : null);
        nameTxt.text = pname;

        int luck = Random.Range(0,100);
        BotSetup selectedSetup = botSetups[0];
        for(int i=0; i < botSetups.Length; i++){
            BotSetup setup = botSetups[i];
            if(setup.rarity < luck && setup.rarity > selectedSetup.rarity){
                selectedSetup = setup;
                SelectedSetupIndex = i;
            }
        }

        SelectedSkinIndex = Random.Range(0, selectedSetup.skins.Length);
        GetComponent<SpriteRenderer>().sprite = selectedSetup.skins[SelectedSkinIndex];
        
        movingSpeed = Random.Range(selectedSetup.minSpeed, selectedSetup.maxSpeed);

        // movingSpeed = Random.Range(minSpeed, maxSpeed);
    }

    // Update is called once per frame
    void FixedUpdate()
    {
        if(!isServer){return;}
        HandleMovement();
        CheckForPickups();
        // ChangeName();
    }


    void CheckForPickups(){
        Collider2D[] hits = Physics2D.OverlapCircleAll(transform.position, 3, pickupsLayer);
            foreach(Collider2D hit in hits){
                if(hit!=null ){
                // Debug.Log(hit.name);
                PickupItem pickupItem = hit.GetComponent<PickupItem>();
                if(pickupItem !=null && pickupItem.active){
                    pickupItem.active=false;
                    pickupItem.Deactivate(transform);
                    CollectPickup(pickupItem.type);
                }
            }
        }        
    }

    void Update(){
        nameTxt.rectTransform.rotation = Quaternion.Euler(Vector3.zero);
    }
    float swayTimer = 0;
    void HandleMovement(){
        CheckAndUpdateTarget();

        Vector3 targ = curTarget.position;
        if(isHunting){
            targ+=(curTarget.up * 8);
            if(swayTimer < 10){
                targ+=(curTarget.right * 8);
            }else{
                targ-=(curTarget.right * 8);
            }
            swayTimer += Time.deltaTime;
            if(swayTimer > 20){
                swayTimer=0;
            }
        }
        targ.z = 0f;

        Vector3 objectPos = transform.position;
        targ.x = targ.x - objectPos.x;
        targ.y = targ.y - objectPos.y;

        float angle = Mathf.Atan2(targ.y, targ.x) * Mathf.Rad2Deg + up;
        transform.rotation = Quaternion.Lerp(transform.rotation, Quaternion.Euler(new Vector3(0, 0, angle)), 0.05f);
        transform.position += transform.up * movingSpeed;
    }
    float t2 =0;
    bool isHunting=false;
    void CheckAndUpdateTarget(){
        bool skip = false;
        if(curTarget != null){
            if(curTarget.gameObject.activeSelf){
                if(t2 < 5){
                    t2+=Time.deltaTime;
                }else{
                    if(Vector3.Distance(transform.position, curTarget.position) < 7){
                        skip = true;
                    }
                    t2=0;
                }
                if(!skip){return;}
            }
        }
        SpaceshipController[] players = FindObjectsOfType<SpaceshipController>();
        foreach(SpaceshipController player in players){
            if(BotsHiveMind.LeasePlayer(player, this)){
                curTarget = player.transform;
                isHunting=true;
                return;
                break;
            }
        }
        bool foundItem = false;
        while(!foundItem){
            List<PickupItem> randomSet=  MinigameManager.instance.pickupItems[Random.Range(1,MinigameManager.instance.pickupItems.Length)].Active;
            PickupItem randomPickup = randomSet[Random.Range(0,randomSet.Count)];
            if(Vector3.Distance(Vector3.zero, randomPickup.transform.position) < MinigameManager.instance.mapRadius){
                curTarget = randomPickup.transform;
                foundItem=true;
                isHunting=false;

            }
        }
    }

    public void TrailCollided(Collider2D hit){
        if(!isServer){return;}
        SpaceshipController deadPlayer = hit.GetComponent<SpaceshipController>();
        // Debug.Log("got hit by player? : " + (deadPlayer != null));
        if (deadPlayer != null && !deadPlayer.dead && (NetworkTime.time - deadPlayer.startedTime) > 5)
        { // <-- okay we killed someone | KILLCODE
            // deadPlayer.RpcShowDeathEffect(deadPlayer.transform.position);
            deadPlayer.Die(pname);
            if(BotsHiveMind.Leased.ContainsKey(deadPlayer)){
                if(BotsHiveMind.Leased[deadPlayer] == this){
                    curTarget=null;
                    isHunting=false;
                }
            }
            Debug.Log($"{pname} killed {deadPlayer.pname}");

            return;
        }

        SpaceshipNetworkBot deadBot = hit.GetComponent<SpaceshipNetworkBot>();
        // Debug.Log("got hit by bot? : " + (deadPlayer != deadBot));

        if(deadBot != null){
            deadBot.Die();

            return;
        }
    }

    [SyncVar (hook = nameof(OnTrailTimeChanged))]
    private float m_trailTime;
    public float maxTrailTime;
    public float minTrailTime;
    public float trailIncrementRate = 0.1f;
    public float trailTime{get{return m_trailTime;} set{
        m_trailTime = Mathf.Clamp(value, minTrailTime,maxTrailTime);
        trailMgr.trail.time = m_trailTime;
    }} 

    void OnTrailTimeChanged(float oldTime, float newTime){
        trailMgr.trail.time = newTime;
    }


    public void CollectPickup(PickupItem.PickupType type){
        trailTime += trailIncrementRate;
        if(type.ToString().ToLower().Contains("moon")){
        Scores+=2;

        }else{
            Scores++;
        }
    }

    public void Die(){
        int leftoverAmount = (int)((float)Scores/4f);
        Debug.Log("Bot " + pname + " Left " + leftoverAmount + " Stars");
        MinigameManager.instance.SpawnLeftoverPickups(transform.position, leftoverAmount);
        MinigameManager.instance.DestroyBot(this);
        return;
        RpcDie(transform.position);
        Scores = 0;
        trailTime = 0;
        trailMgr.trail.time=0;
        transform.position = MinigameManager.getRandomPointInCirlce(Vector3.zero, 150);
        StartCoroutine(die());

    }

    [ClientRpc]
    void RpcDie(Vector3 position){
        EffectPool.Spawn(DeathEffect, position);
        trailMgr.trail.time=0;
        trailMgr.trail.enabled=false;
        StartCoroutine(die());
    }

    IEnumerator die(){
        yield return new WaitForSeconds(0.5f);
        trailTime = 0;
        trailMgr.trail.enabled =true;
    }
}




public static class BotsHiveMind{
    private static string[] Names= {"Andrew Joe", "Dragon Fire", "Doom Killer", "Ice Killer", "Drake Ronin", "Turbo Skull", "Decay", "Fester Flack", "El Diablo", "Rubble r", "Hank 95", "Zer0", "War-lord",
    "Wraith", "Knuckles U", "iKill U", "iSteal", "Bull3t", "Tito 97", "Jurgen", "Tobias 37", "Mia M", "Luca 43", "Aditya 101", "Abu B", "Ahmad Cipta", "Harta Ismaya", "Yuda_333"};
    private static List<string> ActiveNames;
    private static List<string> PooledNames;

    public static string LeaseName(string borrowedName = null){
        if(ActiveNames == null) { ActiveNames = new List<string>();}
        if(PooledNames == null){ PooledNames = new List<string>(Names);}

        //Return borrowed name to the list
        if(borrowedName!=null){
            ActiveNames.Remove(borrowedName);
            PooledNames.Add(borrowedName);
        }

        //Borrow a new name
        string chosenName = PooledNames[Random.Range(0,PooledNames.Count)];
        PooledNames.Remove(chosenName);
        ActiveNames.Add(chosenName);

        return chosenName;
    }


    public static void ReturnName(string name){
        PooledNames.Add(name);
        ActiveNames.Remove(name);
    }
    private static Dictionary<SpaceshipController, SpaceshipNetworkBot> leased = new Dictionary<SpaceshipController, SpaceshipNetworkBot>();

    public static Dictionary<SpaceshipController, SpaceshipNetworkBot> Leased {
        get{
            if(leased == null){ leased = new Dictionary<SpaceshipController, SpaceshipNetworkBot>();}

            return leased;
        }
    }

    public static bool LeasePlayer(SpaceshipController player, SpaceshipNetworkBot bot){
        if(leased.ContainsKey(player)){//Player's already leased
            if(leased[player].curTarget == player.transform){
                return false;
            }else{
                leased.Remove(player);
            }
        }

        leased.Add(player,bot);
        return true;
    }

    public static void RetrunPlayer(SpaceshipController player){
        if(leased.ContainsKey(player)){
            leased.Remove(player);
        }

        Debug.Log("Trying to return a player to hive mind pool. But no one was borrowing them");
    }
}


[Serializable]
public class BotSetup{
    public float minSpeed;
    public float maxSpeed;
    public Sprite[] skins;
    [Range(0,100)]
    public int rarity;
}