using CMS_CORE_Library.Models;
using Thermo.Active.Model.DTOModels;
using Thermo.Active.NC;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using System.Web.Http;
using static CMS_CORE_Library.Models.DataStructures;
using static Thermo.Active.Config.ServerConfig;
using static Thermo.Active.Model.Constants;
using Thermo.Active.Model.DTOModels.Recipe;
using Thermo.Active.Config;

namespace Thermo.Active.Controllers.WebApi
{
    [RoutePrefix("api/recipe")]
    public class RecipeController : ApiController
    {
        [Route("overview"), HttpGet]
        public IHttpActionResult GetOverview()
        {
            using (NcAdapter ncAdapter = new NcAdapter())
            {
                // Try connection
                CmsError libraryError = ncAdapter.Connect();
                if (libraryError.errorCode != 0)
                    return NotFound();

                CmsError cmsError = ncAdapter.GetRecipeOverview(out Dictionary<string, RecipeCatStatus> currOverview);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok(currOverview);
            }
        }
        [Route("current"), HttpGet]
        public IHttpActionResult GetCurrentParameters()
        {
            using (NcAdapter ncAdapter = new NcAdapter())
            {
                // Try connection
                CmsError libraryError = ncAdapter.Connect();
                if (libraryError.errorCode != 0)
                    return NotFound();

                CmsError cmsError = ncAdapter.ReadFullRecipe(out Dictionary<string, DTORecipeParam> currRecipe);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                return Ok(currRecipe);
            }
        }

        [Route("update"), HttpPut]
        public IHttpActionResult WriteParameters(Dictionary<string, double> parametersList)
        {
            if (parametersList != null)
            {
                if (RecipeLiveData != null)
                {
                    using (NcAdapter ncAdapter = new NcAdapter())
                    {
                        // Try connection
                        CmsError libraryError = ncAdapter.Connect();
                        if (libraryError.errorCode != 0)
                            return NotFound();

                        // read recipe!
                        CmsError cmsError = ncAdapter.ReadFullRecipe(out Dictionary<string, DTORecipeParam> prevRecipe);
                        if (cmsError.IsError())
                            return BadRequest(cmsError.localizationKey);

                        Dictionary<string, DTORecipeParam> updtRecipe = new Dictionary<string, DTORecipeParam>();

                        foreach (var item in parametersList)
                        {
                            if (prevRecipe.ContainsKey(item.Key))
                            {
                                // aggiorno il valore HMI nel parametro
                                var currParam = prevRecipe[item.Key];
                                currParam.SetpointHMI = item.Value;
                                // salvo (1 parametro, potrei fare N...)
                                updtRecipe.Add(item.Key, currParam);
                            }
                            else
                            {
                                return NotFound();
                            }
                        }

                        // scrivo sul PLC
                        ncAdapter.WriteRecipeParams(updtRecipe);

                        // ritorno solo fatto!
                        return Ok();
                    }
                }
                else
                {
                    // non pronto!
                    return InternalServerError();
                }
            }
            else
            {
                return NotFound();
            }
        }

        /// <summary>
        /// Confirm recipe modification (parameters: HMI --> PLC)
        /// </summary>
        /// <returns></returns>
        [Route("confirm"), HttpPut]
        public IHttpActionResult ConfirmEdit()
        {
            if (RecipeLiveData != null)
            {
                using (NcAdapter ncAdapter = new NcAdapter())
                {
                    // Try connection
                    CmsError libraryError = ncAdapter.Connect();
                    if (libraryError.errorCode != 0)
                        return NotFound();

                    // scrivo sul PLC il comando conferma!
                    CmsError cmsError = ncAdapter.ConfirmRecipeData(true);
                    if (cmsError.IsError())
                        return BadRequest(cmsError.localizationKey);

                    // recupero i dati LIVE dei parametri HMI della ricetta...
                    cmsError = ncAdapter.ReadFullRecipe(out Dictionary<string, DTORecipeParam> currRecipe);
                    if (cmsError.IsError())
                        return BadRequest(cmsError.localizationKey);

                    // rileggo la ricetta
                    var currParams = new Dictionary<string, double>();
                    foreach (var item in currRecipe)
                    {
                        currParams.Add(item.Key, item.Value.SetpointHMI);
                    }

                    saveCurrentRecipeParams(currParams);

                    // ritorno solo fatto!
                    return Ok();
                }
            }
            else
            {
                // non pronto!
                return InternalServerError();
            }
        }

        /// <summary>
        /// Cancel recipe modification (parameters: PLC --> HMI)
        /// </summary>
        /// <returns></returns>
        [Route("cancel"), HttpPut]
        public IHttpActionResult CancelEdit()
        {
            if (RecipeLiveData != null)
            {
                using (NcAdapter ncAdapter = new NcAdapter())
                {
                    // Try connection
                    CmsError libraryError = ncAdapter.Connect();
                    if (libraryError.errorCode != 0)
                        return NotFound();

                    // scrivo sul PLC il comando annula!
                    CmsError cmsError = ncAdapter.ConfirmRecipeData(false);
                    if (cmsError.IsError())
                        return BadRequest(cmsError.localizationKey);

                    // recupero i dati LIVE dei parametri HMI della ricetta...
                    cmsError = ncAdapter.ReadFullRecipe(out Dictionary<string, DTORecipeParam> currRecipe);
                    if (cmsError.IsError())
                        return BadRequest(cmsError.localizationKey);

                    var currParams = new Dictionary<string, double>();
                    foreach (var item in currRecipe)
                    {
                        currParams.Add(item.Key, item.Value.SetpointPLC);
                    }

                    // ora salvo ANCHE i dati live...
                    saveCurrentRecipeParams(currParams);

                    // ritorno solo fatto!
                    return Ok();
                }
            }
            else
            {
                // non pronto!
                return InternalServerError();
            }
        }

        /// <summary>
        /// load recipe from file and send to PLC
        /// </summary>
        /// <returns></returns>
        [Route("load"), HttpPut]
        public IHttpActionResult Load(string newName)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                // Try connection
                CmsError libraryError = ncAdapter.Connect();
                if (libraryError.errorCode != 0)
                    return NotFound();

                // chiamo metodo di lettura...
                //CmsError cmsError = ServerConfigController.LoadRecipe(newName);
                bool fatto = ServerConfigController.LoadRecipe(newName);
                if (!fatto)
                    return NotFound();


                CmsError cmsError = writeCurrentRecipeToPlc();
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                // ritorno solo fatto!
                return Ok();
            }
        }

        /// <summary>
        /// Load tempalte recipe from file and save as new current...
        /// </summary>
        /// <returns></returns>
        [Route("new"), HttpPut]
        public IHttpActionResult NewRecipe()
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                // chiamo metodo di lettura...
                bool fatto = ServerConfigController.LoadTemplate();

                if (!fatto)
                    return NotFound();

                CmsError cmsError = writeCurrentRecipeToPlc();
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

            }
            // ritorno solo fatto!
            return Ok();
        }

        /// <summary>
        /// Save current recipe from PLC to default
        /// </summary>
        /// <returns></returns>
        [Route("save"), HttpPut]
        public IHttpActionResult Save()
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {

                // recupero i dati LIVE dei parametri HMI della ricetta...
                CmsError cmsError = ncAdapter.ReadFullRecipe(out Dictionary<string, DTORecipeParam> currRecipe);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                var currParams = new Dictionary<string, double>();
                foreach (var item in currRecipe)
                {
                    currParams.Add(item.Key, item.Value.SetpointPLC);
                }

                // ora salvo ANCHE i dati live...
                saveCurrentRecipeParams(currParams);

                // ritorno solo fatto!
                return Ok();
            }
        }
        /// <summary>
        /// Save current recipe from PLC with new name
        /// </summary>
        /// <returns></returns>
        [Route("saveAs"), HttpPut]
        public IHttpActionResult SaveAs(string newName)
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                // recupero i dati LIVE dei parametri HMI della ricetta...
                CmsError cmsError = ncAdapter.ReadFullRecipe(out Dictionary<string, DTORecipeParam> currRecipe);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                var currParams = new Dictionary<string, double>();
                foreach (var item in currRecipe)
                {
                    currParams.Add(item.Key, item.Value.SetpointPLC);
                }

                // ora salvo ANCHE i dati live...
                RecipeLiveData.RecipeParameters = currParams;
                // e salvo su disco
                ServerConfigController.SaveRecipe(newName);

                // ritorno solo fatto!
                return Ok();
            }
        }
        /// <summary>
        /// Save current recipe from PLC to Template
        /// </summary>
        /// <returns></returns>
        [Route("saveTemplate"), HttpPut]
        public IHttpActionResult SaveTemplate()
        {
            using (NcFileAdapter ncAdapter = new NcFileAdapter())
            {
                // recupero i dati LIVE dei parametri HMI della ricetta...
                CmsError cmsError = ncAdapter.ReadFullRecipe(out Dictionary<string, DTORecipeParam> currRecipe);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);


                // recupero i dati LIVE dei carichi load dei cahnnels di riscaldo...
                cmsError = ncAdapter.ReadWarmers(out Dictionary<int, DTOWarmers> currWarmers);
                if (cmsError.IsError())
                    return BadRequest(cmsError.localizationKey);

                // uso i valopri HMI...
                var currParams = new Dictionary<string, double>();
                foreach (var item in currRecipe)
                {
                    currParams.Add(item.Key, item.Value.SetpointHMI);
                }

                // ora salvo nei dati live...
                RecipeLiveData.RecipeParameters = currParams;

                // carico i dati dei riscaldi...
                var currChSet = new Dictionary<int, int>();
                foreach (var item in currWarmers)
                {
                    currChSet.Add(item.Key, item.Value.SetpointHMI);
                }
                RecipeLiveData.ChannelSetpoints = currChSet;


                // e salvo su disco
                ServerConfigController.SaveRecipeTemplate();

                // ritorno solo fatto!
                return Ok();
            }
        }


        /// <summary>
        /// Do actual recipe parameters FileSave
        /// </summary>
        /// <param name="currParams"></param>
        private static void saveCurrentRecipeParams(Dictionary<string, double> currParams)
        {
            try
            {
                // ora salvo ANCHE i dati live...
                RecipeLiveData.RecipeParameters = currParams;
                // e salvo su disco
                ServerConfigController.SaveRecipeCurrent();
            }
            catch
            { }
        }

        protected static CmsError writeCurrentRecipeToPlc()
        {
            CmsError checkError = NO_ERROR;

            using (NcAdapter ncAdapter = new NcAdapter())
            {
                // Try connection
                CmsError libraryError = ncAdapter.Connect();
                if (libraryError.errorCode != 0)
                    return libraryError;


                // copy data to PLC
                checkError = ncAdapter.ReadFullRecipe(out Dictionary<string, DTORecipeParam> prevRecipe);
                if (checkError.IsError())
                    return checkError;

                // save parameters to PLC!!!
                Dictionary<string, DTORecipeParam> updtRecipe = new Dictionary<string, DTORecipeParam>();
                foreach (var item in RecipeLiveData.RecipeParameters)
                {
                    if (prevRecipe.ContainsKey(item.Key))
                    {
                        // aggiorno il valore HMI nel parametro
                        var currParam = prevRecipe[item.Key];
                        currParam.SetpointHMI = item.Value;
                        // salvo (1 parametro, potrei fare N...)
                        updtRecipe.Add(item.Key, currParam);
                    }
                    else
                    {
                        return NOT_FOUND_ERROR;
                    }
                }

                // write to PLC
                checkError = ncAdapter.WriteRecipeParams(updtRecipe);


                // process ch load setup...
                Dictionary<int, int> newRisk = new Dictionary<int, int>();
                foreach (var item in RecipeLiveData.ChannelSetpoints)
                {
                    newRisk.Add(item.Key, item.Value);
                }

                // write to PLC
                checkError = ncAdapter.WriteRecipeWarmChSetpHMI(newRisk);

                // enable recipe! scrivo sul PLC il comando conferma!
                CmsError cmsError = ncAdapter.ConfirmRecipeData(true);
                if (cmsError.IsError())
                    return checkError;
            }
            return checkError;
        }
    }
}