using UnityEngine;
using System;
using System.Collections.Generic;
using UnityEngine.Events;
using Octopus.Simulator.Networks;
using Newtonsoft.Json;
using Octopus.Simulator;

#region class
[Serializable]
public class MoveDataClass_start
{
    public string move_id;
    public string move_label;
    public string type;
    public float move_time;
    public int capacity;
    public int products_per_batch;
    public List<InputQueue> input_queues;
    public string output_queue;
    public string defect_queue;
    public string required_resource;
    public float return_time;
    public int min_batch_size;
    public float loading_delay;
    public float unloading_delay;
}

[Serializable]
public class MoveDataClass_loading
{
    public string move_id;
    public string move_label;
    public int loaded_count;
    public List<string> source_queues;
    public List<string> source_stores;
    public float loading_delay;
}

[Serializable]
public class MoveDataClass_Request_Resource
{
    public string move_id;
    public string move_label;
}

[Serializable]
public class MoveDataClass_Resource_Acquired
{
    public string resource;
}

[Serializable]
public class MoveDataClass_Speed_Factor_Applied
{
    public float original;
    public float adjusted;
}

[Serializable]
public class MoveDataClass_Move_Moving
{
    public float time;
    public float loading_delay;
    public float unloading_delay;
    public MoveMovingInput input;
    public MoveMovingOutput output;
}

[Serializable]
public class MoveMovingInput
{
    public List<string> queues;
    public List<string> stores;
}
[Serializable]
public class MoveMovingOutput
{
    public string queue;
    public string store;
    public string defect_queue;
    public string defect_store;
}

[Serializable]
public class MoveDataClass_Arrived
{
    public int count;
}

[Serializable]
public class MoveDataClass_Unloading_Defect
{
    public string product_id;
    public string output_queue;
    public int output_queue_length;
    public float unloading_delay;
}

[Serializable]
public class MoveDataClass_Unloading_Defect_Store
{
    public string product_id;
    public string store_name;
    public int store_length;
    public float unloading_delay;
}

[Serializable]
public class MoveDataClass_Unloading
{
    public string product_id;
    public string output_queue;
    public int output_queue_length;
    public float unloading_delay;
}

[Serializable]
public class MoveDataClass_Unloading_Store
{
    public string product_id;
    public string store_name;
    public int store_queue_length;
    public float unloading_delay;
}

[Serializable]
public class MoveDataClass_returning
{
    public float return_time;
}

[Serializable]
public class MoveDataClassStatistics
{
    public statisticsMove statistics;
}

[Serializable]
public class statisticsMove
{
    public int total_moved;
}
#endregion

public class SimulationModelMove : SimulationModel
{
    string eventLoading = "move_loading";
    string eventMove = "move_moving";
    string eventUnloading = "move_unloading";
    string eventSpeed = "move_speed_factor_applied";
    string eventReturning = "move_returning";

    [Header("Transport")]
    public List<GameObject> listProducts = new List<GameObject>();
    public Transform productPos;
    public Vector3 productDistance = new Vector3(0, 0.321f, 0);

    int productCount = 0;
    int currentCount = 0;
    int totalMoved = 0;
    bool isFirstTransport = true;

    Transform origin = null;
    public Transform destination = null;

    public float arrivalTime = 0;
    public float elapsedTime = 0;

    Vector3 originalPos;
    Vector3 prevPos;

    void Update()
    {
        if (!simulationUI.isplaying)
            return;

        UpdateProductStacking();
        UpdateMovement();
    }

    private void UpdateProductStacking()
    {
        if (productCount != listProducts.Count)
        {
            productCount = listProducts.Count;
            // 단순하게 모두 같은 offset으로 배치 (필요 시 i 기반 offset으로 확장)
            foreach (var gb in listProducts)
            {
                if (gb != null)
                {
                    gb.transform.localPosition = productDistance;
                }
            }
        }
    }

    private void UpdateMovement()
    {
        if (destination == null)
            return;

        elapsedTime += Time.deltaTime * WebParameters.speed;

        if (arrivalTime <= 0f)
            return;

        float t = elapsedTime / arrivalTime;
        if (t > 1f)
        {
            transform.position = destination.position;
            transform.forward = destination.forward;
            destination = null;
        }
        else
        {
            Vector3 newPos = Vector3.Lerp(originalPos, destination.position, t);
            transform.position = newPos;

            Vector3 dir = newPos - prevPos;
            dir.y = 0;
            if (dir.sqrMagnitude > 0.0001f)
            {
                dir.Normalize();
                transform.forward = dir;
            }

            prevPos = newPos;
        }
    }

    public override void GetData(string data)
    {
        var wrapclass = JsonConvert.DeserializeObject<SimulationDefaultJson>(data);
        if (wrapclass == null || string.IsNullOrEmpty(wrapclass._event))
            return;
        /*
        string eventLoading = "move_loading";
        string eventMove = "move_moving";
        string eventUnloading = "move_unloading";
        string eventSpeed = "move_speed_factor_applied";
        string eventReturning = "move_returning";
        */
        switch (wrapclass._event)
        {
            case "move_loading":
                LoadingCargo(wrapclass.data.ToString());
                break;                      
            case "move_moving":
                Moving(wrapclass.data.ToString());
                break;            
            case "move_unloading":
                break;            
            case "move_speed_factor_applied":
                break;           
            case "move_returning":
                break;
        }
        if (wrapclass._event.Contains(eventMove))
        {
            var moveData_Move = JsonConvert.DeserializeObject<MoveDataClass_Move_Moving>(wrapclass.data.ToString());
            elapsedTime = 0;
            arrivalTime = moveData_Move.time;
            originalPos = transform.position;
            prevPos = transform.position;

            if (moveData_Move.input.queues != null && moveData_Move.input.queues.Count >= 1)
            {
                string queueID = moveData_Move.input.queues[0].ToString();
                SimulationModel model = DataManager.I.GetModel(queueID);
                SimulationModelStore storeModel = model.GetComponent<SimulationModelStore>();
                origin = storeModel.GetTransporterPosition();
            }
            else if (moveData_Move.input.stores != null && moveData_Move.input.stores.Count >= 1)
            {
                string storeID = moveData_Move.input.stores[0].ToString();
                SimulationModel model = DataManager.I.GetModel(storeID);
                SimulationModelStore storeModel = model.GetComponent<SimulationModelStore>();
                origin = storeModel.GetTransporterPosition();
            }

            if (!string.IsNullOrEmpty(moveData_Move.output.queue))
            {
                SimulationModel model = DataManager.I.GetModel(moveData_Move.output.queue);
                SimulationModelStore storeModel = model.GetComponent<SimulationModelStore>();
                destination = storeModel.GetTransporterPosition();
            }
            else if (!string.IsNullOrEmpty(moveData_Move.output.store))
            {
                SimulationModel model = DataManager.I.GetModel(moveData_Move.output.store);
                SimulationModelStore storeModel = model.GetComponent<SimulationModelStore>();
                destination = storeModel.GetTransporterPosition();
            }
        }
        else if (wrapclass._event.Contains(eventUnloading))
        {
            string targetID = "";

            if (wrapclass._event.Contains("defect_store"))
            {
                var moveData_unLoading = JsonConvert.DeserializeObject<MoveDataClass_Unloading_Defect_Store>(wrapclass.data.ToString());
                targetID = moveData_unLoading.store_name;
            }
            else if (wrapclass._event.Contains("defect"))
            {
                var moveData_unLoading = JsonConvert.DeserializeObject<MoveDataClass_Unloading_Defect>(wrapclass.data.ToString());
                targetID = moveData_unLoading.output_queue;
            }
            else if (wrapclass._event.Contains("unloading_store"))
            {
                //Debug.Log(wrapclass.data.ToString());
                var moveData_unLoading = JsonConvert.DeserializeObject<MoveDataClass_Unloading_Store>(wrapclass.data.ToString());
                targetID = moveData_unLoading.store_name;
            }
            else
            {
                var moveData_unLoading = JsonConvert.DeserializeObject<MoveDataClass_Unloading>(wrapclass.data.ToString());
                targetID = moveData_unLoading.output_queue;
            }

            var model = DataManager.I.GetModel(targetID);
            if(model == null)
            {
                Debug.LogWarning($"Datamanager Model Null!!!!! TargetID:{targetID}");
                return;
            }
            SimulationModelStore storeModel = model.GetComponent<SimulationModelStore>();

            if (listProducts.Count > 0)
            {
                GameObject product = listProducts[0];
                //storeModel.StoreProduct(product);
                listProducts.Remove(product);
                Destroy(product);
            }
            else
            {
                Debug.LogWarning("Trying to unload from empty transporter : " + nodeID);
            }
        }
        if (wrapclass._event.Contains("move_arrived"))
        {
            var moveData_arrived = JsonConvert.DeserializeObject<MoveDataClass_Arrived>(wrapclass.data.ToString());
            currentCount -= moveData_arrived.count;
            SetBubble(currentCount);
        }
        if (wrapclass._event.Contains(eventSpeed))
        {
            var moveData_Speed = JsonConvert.DeserializeObject<MoveDataClass_Speed_Factor_Applied>(wrapclass.data.ToString());
            float originalTime = moveData_Speed.original;
            float adjustedTime = moveData_Speed.adjusted;
            arrivalTime += adjustedTime - originalTime;
            elapsedTime = 0;
            originalPos = transform.position;
            prevPos = transform.position;
        }
        if (wrapclass._event.Contains(eventReturning))
        {
            var moveData_Return = JsonConvert.DeserializeObject<MoveDataClass_returning>(wrapclass.data.ToString());
            elapsedTime = 0;
            arrivalTime = moveData_Return.return_time;
            originalPos = transform.position;
            prevPos = transform.position;
            if (origin != null)
            {
                destination = origin;
            }
        }
        if (wrapclass._event.Contains("move_statistics_update"))
        {
            totalMoved = JsonConvert.DeserializeObject<MoveDataClassStatistics>(wrapclass.data.ToString()).statistics.total_moved;
            SetBubble(totalMoved);
        }
    }

    private void LoadingCargo(string data)
    {
        var loading = JsonConvert.DeserializeObject<MoveDataClass_loading>(data);
        if (loading == null)
            return;

        currentCount = loading.loaded_count;
        SetBubble(currentCount);

        // 처음 운송이면 출발 위치 세팅
        if (isFirstTransport)
        {
            string sourceId = GetFirstNonEmpty(loading.source_queues, loading.source_stores);
            if (!string.IsNullOrEmpty(sourceId))
            {
                var sourceModel = DataManager.I.GetModel(sourceId) as SimulationModelStore;
                if (sourceModel != null)
                {
                    transform.position = sourceModel.GetTransporterPosition()?.position ?? transform.position;
                }
            }
            isFirstTransport = false;
        }

        AddProducts(loading.loaded_count);
    }

    private void Moving(string data)
    {
        var moveData = JsonConvert.DeserializeObject<MoveDataClass_Move_Moving>(data);
        if (moveData == null)
            return;

        elapsedTime = 0f;
        arrivalTime = moveData.time;
        originalPos = transform.position;
        prevPos = transform.position;

        // origin 설정 (입력 큐 / 스토어)
        string inputId = GetFirstNonEmpty(moveData.input?.queues, moveData.input?.stores);
        if (!string.IsNullOrEmpty(inputId))
        {
            var model = DataManager.I.GetModel(inputId) as SimulationModelStore;
            if (model != null)
                origin = model.GetTransporterPosition();
        }

        // destination 설정 (출력 큐 / 스토어)
        if (!string.IsNullOrEmpty(moveData.output?.queue))
        {
            var model = DataManager.I.GetModel(moveData.output.queue) as SimulationModelStore;
            if (model != null)
                destination = model.GetTransporterPosition();
        }
        else if (!string.IsNullOrEmpty(moveData.output?.store))
        {
            var model = DataManager.I.GetModel(moveData.output.store) as SimulationModelStore;
            if (model != null)
                destination = model.GetTransporterPosition();
        }
    }

    private string GetFirstNonEmpty(List<string> listA, List<string> listB)
    {
        if (listA != null && listA.Count > 0)
            return listA[0];
        if (listB != null && listB.Count > 0)
            return listB[0];
        return string.Empty;
    }

    private void AddProducts(int count)
    {
        for (int i = 0; i < count; i++)
        {
            var product = ProductManager.Instance.SpawnProduct();
            if (product == null)
                continue;

            product.GetComponent<SimulationModelProduct>().SetParent(this.nodeID);
            product.transform.parent = productPos;
            product.transform.localPosition = Vector3.zero;
            product.transform.localRotation = Quaternion.identity;
            listProducts.Add(product);
        }
    }

    public override void SetBubble(object data)
    {
        string msg = $"{currentCount}/{totalMoved}";

        if (currentBubble == null)
        {
            // 생성
            currentBubble = Instantiate(bubbleUIPrefab, FindAnyObjectByType<Canvas_Bubble>().transform);
            currentBubble.target = DataBubbleSocket;
            currentBubble.worldOffset = new Vector3(0, 2.0f, 0);  // 필요에 따라 조절
            currentBubble.GetComponent<RectTransform>().SetAsFirstSibling();
        }
        // 텍스트 갱신
        currentBubble.SetMessage(msg);
        List<string> datas = new List<string>
        {
            currentCount.ToString(),
            totalMoved.ToString()
        };
        currentBubble.SetDetail(datas, logicType.move, LogicUIManager.instance.GetItemLabelByID(nodeID));
    }
}