using System.Collections.Concurrent;
using System.Collections.Generic;
using UnityEngine;
using System.Collections;
using Newtonsoft.Json.Linq;
using Best.HTTP.JSON;

public class SimulationModelSource : SimulationModel
{
    public string eventGenerateProduct = "product_generated";
    public string eventGenerateDefect = "product_defective";
    public string eventQueueProduct = "product_queued";
    public GameObject productPrefab;
    public GameObject defectPrefab;
    public List<GameObject> listProducts = new List<GameObject>();
    public List<GameObject> listDefects = new List<GameObject>();
    public Transform productPos;
    public Vector3 productDistance = new Vector3(0, 0.321f, 0);
    //ConcurrentQueue<Dictionary<string, object>> dataQueue;
    ConcurrentQueue<JObject> dataQueue;
    int productCount = 0;
    int defectCount = 0; 
    void Update()
    {
        int interval = 0;
        if (productCount != listProducts.Count)
        {
            productCount = listProducts.Count;
            for (int i = 0; i < productCount; i++)
            {
                GameObject gb = listProducts[i];
                gb.transform.localPosition = productDistance * interval;
                interval++;
            }
        }
        if (defectCount != listDefects.Count)
        {
            defectCount = listDefects.Count;
            for (int i = 0; i < defectCount; i++)
            {
                GameObject gb = listDefects[i];
                gb.transform.localPosition = productDistance * interval;
                interval++;
            }
        }
    }
    protected override IEnumerator RunSimulationCoroutine()
    {
        yield return new WaitUntil(() => !string.IsNullOrEmpty(nodeID)); 
        while (dataQueue == null)
        {
            dataQueue = MQTTDataBase.Instance.GetDataQueue(nodeID);
            if (dataQueue == null)
                yield return null;
            else
                break;
        }
        while (true)
        {
            if (dataQueue.IsEmpty)
            {
                yield return null;
                continue;
            }
            if (dataQueue.TryDequeue(out JObject currentData))
            {
                string eventKey = "_event"; 
                if (currentData.ContainsKey(eventKey))
                {
                    string value = currentData[eventKey].ToString();
                    if (value.Contains(eventGenerateProduct))
                    { 
                        GameObject gb = Instantiate(productPrefab, productPos);
                        listProducts.Add(gb);
                    }
                    else if (value.Contains(eventGenerateDefect))
                    { 
                        GameObject gb = Instantiate(defectPrefab, productPos);
                        listProducts.Add(gb);
                    }
                    else if (value.Contains(eventQueueProduct))
                    { 
                        string[] queueIDKey = { "data", "queue" };
                        string[] capacityKey = { "data", "queue_length" };
                        string[] storeTypeKey = { "data", "queue_type" };
                        string queueID = GetJsonValue(currentData, queueIDKey)?.ToString();
                        int queueCapacity = GetJsonIntValue(currentData, capacityKey);
                        string storeType = GetJsonValue(currentData, storeTypeKey)?.ToString();
                        SimulationModel model = DataManager.I.GetModel(queueID);
                        GameObject product = null;
                        if (listProducts.Count > 0)
                        {
                            product = listProducts[0];
                            listProducts.Remove(product);
                        }
                        else if (listDefects.Count > 0)
                        {
                            product = listDefects[0];
                            listDefects.Remove(product);
                        }
                        if (model != null && product != null)
                        {
                            SimulationModelStore storeModel = (SimulationModelStore)model;
                            storeModel.maxCapacity = queueCapacity;
                            storeModel.storeType = storeType;
                            storeModel.StoreProduct(product);
                        }
                    }
                }
            }
            yield return null;
        } 
        yield return null;
    }
}