using AIPractice.LabellerServer.Managers;
using AIPractice.LabellerServer.Managers.Entities;
using AIPractice.Shared.ImageRois;
using System;
using System.Linq;
using System.ServiceModel;

namespace AIPractice.LabellerServer
{
    public enum LoginResult
    {
        //Login success.
        Success = 0,
        //The name is wrong.
        WrongName,
        //The password is wrong.
        WrongPassword,
    }

    [ServiceContract]
    public interface IAccountService
    {

        /// <summary>
        /// Gets account by name and password
        /// </summary>
        /// <param name="name">The name of the account.</param>
        /// <returns>The account</returns>
        [OperationContract]
        Account GetAccout(string name);

        /// <summary>
        /// Get the virtual case by given id.
        /// </summary>
        /// <param name="accountId">The account of the virtual case.</param>
        /// <param name="caseId">The case id</param>
        /// <returns>The found virtual case.</returns>
        [OperationContract]
        VirtualCase GetVirtualCaseById(string accountId, string caseId);

        /// <summary>
        /// Gets the virtual case by given index.
        /// </summary>
        /// <param name="accountId">The account of the virtual case.</param>
        /// <param name="caseIndex">The index</param>
        /// <returns>The found virtual case.</returns>
        [OperationContract]
        VirtualCase GetVirtualCaseByIndex(string accountId, int caseIndex);


        /// <summary>
        /// Get the case image content by the given id.
        /// </summary>
        /// <param name="accountId">The account id</param>
        /// <param name="caseId">The case id</param>
        /// <param name="imageId">The image id of the image</param>
        /// <returns>The content of the found image.</returns>
        [OperationContract]
        string GetCaseImageById(string accountId, string caseId, string imageId);


        /// <summary>
        /// Get the case image content by the given index.
        /// </summary>
        /// <param name="accountId">The account id</param>
        /// <param name="caseId">The case id</param>
        /// <param name="index">The case index</param>
        /// <returns>The content of the found image.</returns>
        [OperationContract]
        string GetCaseImageByIndex(string accountId, string caseId, int index);


        /// <summary>
        /// Get the committed image by image id.
        /// </summary>
        /// <returns>The content of the image.</returns>
        [OperationContract]
        CommittedImage GetCommittedImage(string accountId, string imageId);


        /// <summary>
        /// Get the latest committed image by image id.
        /// </summary>
        /// <returns>The content of the image.</returns>
        [OperationContract]
        CommittedImage GetLatestCommittedImage(string accountId);


        /// <summary>
        /// Get the virtual case image.
        /// </summary>
        /// <returns>The image info contains the index.</returns>
        [OperationContract]
        VirtualCaseImage GetVirtualCaseImageById(string accountId, string imageId);


        /// <summary>
        /// Get the virtual case image.
        /// </summary>
        /// <returns>The image info contains the index.</returns>
        [OperationContract]
        VirtualCaseImage GetVirtualCaseImageByIndex(string caseId, int index);


        /// <summary>
        /// Gets the total case count.
        /// </summary>
        /// <returns>The case count of this account</returns>
        [OperationContract]
        int GetCaseCount(string accountId);

        /// <summary>
        /// Gets the total image count of current case.
        /// </summary>
        /// <returns>The total image count of current case</returns>
        [OperationContract]
        int GetCaseImageCount(string caseId);


        /// <summary>
        /// Gets the total image count.
        /// </summary>
        /// <returns>The total image count</returns>
        [OperationContract]
        int GetTotalImageCount(string accountId);

        /// <summary>
        /// Gets the total commited image count of this account.
        /// </summary>
        /// <returns>The total committed image count of this account</returns>
        [OperationContract]
        int GetCommittedImageCount(string accountId);

        /// <summary>
        /// Commit a labeled image into database.
        /// </summary>
        /// <param name="content">The image data to be committed.</param>
        [OperationContract]
        void CommitImage(string accountId, string content);

        /// <summary>
        /// Set current image to committedImage.
        /// </summary>
        /// <param name="accountId"></param>
        /// <param name="imageId"></param>
        [OperationContract]
        void SetCurrentCommitedImage(string accountId, string imageId);
    }

    public partial class LabellerService : IAccountService
    {

        private const string ReviewrCaseId = "6DEA2E08DC5A45EAAF1311935D6FE02E";

        /// <summary>
        /// Get account by account name.
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public Account GetAccout(string name)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountByName(name);
            if(account != null)
            {
                LogManager.WriteLog($"客户端获取用户信息:{account.Name}。");
            }
            else
            {
                LogManager.WriteLog($"客户端获取用户信息:{name} 失败。");
            }
            return account;
        }

        /// <summary>
        /// Get the virtual case.
        /// </summary>
        /// <returns></returns>
        public VirtualCase GetVirtualCaseById(string accountId, string caseId)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var virtualCase = dataManager.GetVirtualCase(accountId, caseId);
            if (virtualCase != null)
            {
                LogManager.WriteLog($"客户端 {account} 通过ID获取虚拟病例信息:{virtualCase.Id}。");
            }
            else
            {
                LogManager.WriteLog($"客户端 {account} 通过ID获取虚拟病例信息:{caseId} 失败。");
            }
            return virtualCase;
        }


        /// <summary>
        /// Get the virtual case.
        /// </summary>
        /// <returns></returns>
        public VirtualCase GetVirtualCaseByIndex(string accountId, int caseIndex)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var virtualCase = dataManager.GetVirtualCase(accountId, caseIndex);
            if (virtualCase != null)
            {
                LogManager.WriteLog($"客户端 {account} 通过索引获取虚拟病例信息:{virtualCase.Id}。");
            }
            else
            {
                LogManager.WriteLog($"客户端 {account} 通过索引获取虚拟病例信息:{caseIndex} 失败。");
            }
            return virtualCase;
        }



        /// <summary>
        /// Get the image by image id, it could be the orginal image or committed image.
        /// </summary>
        /// <returns>The content of the image.</returns>
        public string GetCaseImageById(string accountId, string caseId, string imageId)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var committedImage = dataManager.GetCommittedImage(accountId, imageId);
            if (committedImage != null && committedImage.CaseId == caseId)
            {
                LogManager.WriteLog($"客户端 {account} 通过Id获取图像，图像来自提交的图像:{caseId} - {imageId}。");
                return committedImage.Content;
            }
            var virtualCaseImage = dataManager.GetVirtualCaseImage(accountId,imageId);
            if (virtualCaseImage != null && virtualCaseImage.CaseId == caseId)
            {
                var labelImage = dataManager.GetLabelImage(imageId);
                if (labelImage != null)
                {
                    LogManager.WriteLog($"客户端 {account} 通过Id获取图像，图像来自原始图像:{caseId} - {imageId}。");
                    return labelImage.Content;
                }
            }
            LogManager.WriteLog($"客户端 {account} 通过Id获取图像失败:{caseId} - {imageId}。");
            return null;
        }

        /// <summary>
        /// Get the image by image index, it could be the orginal image or committed image.
        /// </summary>
        /// <returns>The content of the image.</returns>
        public string GetCaseImageByIndex(string accountId, string caseId, int index)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var virtualCaseImage = dataManager.GetVirtualCaseImage(caseId, index);
            if (virtualCaseImage != null)
            {
                var committedImage = dataManager.GetCommittedImage(accountId, virtualCaseImage.ImageId);
                if (committedImage != null && committedImage.CaseId == caseId)
                {
                    LogManager.WriteLog($"客户端 {account} 通过索引获取图像，图像来自提交的图像:{caseId} - {index}。");
                    return committedImage.Content;
                }

                if (virtualCaseImage != null && virtualCaseImage.CaseId == caseId)
                {
                    var labelImage = dataManager.GetLabelImage(virtualCaseImage.ImageId);
                    if (labelImage != null)
                    {
                        LogManager.WriteLog($"客户端 {account} 通过索引获取图像，图像来自原始图像:{caseId} - {index}。");
                        return labelImage.Content;
                    }
                }
            }
            LogManager.WriteLog($"客户端 {account} 通过索引获取图像失败:{caseId} - {index}。");
            return null;
        }


        /// <summary>
        /// Get committed image by image id.
        /// </summary>
        /// <returns>The content of the image.</returns>
        public CommittedImage GetCommittedImage(string accountId, string imageId)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var committedImage = dataManager.GetCommittedImage(accountId, imageId);
            if(committedImage != null)
            {
                LogManager.WriteLog($"客户端 {account} 通过Id获取提交的图像:{imageId}。");
            }
            else
            {
                LogManager.WriteLog($"客户端 {account} 通过Id获取提交的图像失败:{imageId}。");
            }
            return committedImage;
        }

        /// <summary>
        /// Get the latest committed image.
        /// </summary>
        /// <returns>The content of the image.</returns>
        public CommittedImage GetLatestCommittedImage(string accountId)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var committedImage = dataManager.GetLastCommittedImage(accountId);
            if (committedImage != null)
            {
                LogManager.WriteLog($"客户端 {account} 获取最后提交的图像:{committedImage.ImageId}。");
            }
            else
            {
                LogManager.WriteLog($"客户端 {account} 获取最后提交的图像失败。");
            }
            return committedImage;
        }


        /// <summary>
        /// Get the virtual case image.
        /// </summary>
        /// <returns>The image info contains the index.</returns>
        public VirtualCaseImage GetVirtualCaseImageById(string accountId, string imageId)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var virtualCaseImage = dataManager.GetVirtualCaseImage(accountId, imageId);
            if (virtualCaseImage != null)
            {
                LogManager.WriteLog($"客户端 {account} 通过Id获取虚拟病例图像:{imageId}。");
            }
            else
            {
                LogManager.WriteLog($"客户端 {account} 通过Id获取虚拟病例图像失败:{imageId}。");
            }
            return virtualCaseImage;
        }


        /// <summary>
        /// Get the virtual case image.
        /// </summary>
        /// <returns>The image info contains the index.</returns>
        public VirtualCaseImage GetVirtualCaseImageByIndex(string caseId, int index)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var virtualCaseImage = dataManager.GetVirtualCaseImage(caseId, index);
            if (virtualCaseImage != null)
            {
                LogManager.WriteLog($"客户端通过索引获取虚拟病例图像:{caseId} - {index}。");
            }
            else
            {
                LogManager.WriteLog($"客户端通过索引获取虚拟病例图像失败:{caseId} - {index}。");
            }
            return virtualCaseImage;
        }


        /// <summary>
        /// Gets the total case count.
        /// </summary>
        /// <returns>The case count of this account</returns>
        public int GetCaseCount(string accountId)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var caseCount = dataManager.GetVirtualCaseCount(accountId);
            LogManager.WriteLog($"客户端 {account} 获取虚拟病例数量:{caseCount}。");
            return caseCount;
        }

        /// <summary>
        /// Gets the total image count of current case.
        /// </summary>
        /// <returns>The total image count of current case</returns>
        public int GetCaseImageCount(string caseId)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var imageCount = dataManager.GetVirtualCaseImageCount(caseId);
            LogManager.WriteLog($"客户端获取虚拟病例图像数量:{caseId} - {imageCount}。");
            return imageCount;
        }


        /// <summary>
        /// Gets the total commited image count of this account.
        /// </summary>
        /// <returns>The total committed image count of this account</returns>
        public int GetCommittedImageCount(string accountId)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var imageCount = dataManager.GetCommittedImageCount(accountId);
            LogManager.WriteLog($"客户端 {account} 获取提交图像数量:{imageCount}。");
            return imageCount;
        }


        /// <summary>
        /// Commit one image.
        /// </summary>
        /// <param name="accountId"></param>
        /// <param name="content"></param>
        public void CommitImage(string accountId, string content)
        {
            var start = Environment.TickCount;
            var imageData = ImageData.FromXml(content);
            var partCount = 0;
            if (imageData.Rois.Count == 0)
            {
                partCount = 1;
            }
            else
            {
                foreach (var roi in imageData.Rois)
                {
                    if (roi.Conclusion != null && roi.Conclusion.IsParts)
                    {
                        partCount++;
                    }
                }
            }


            var imageId = imageData.Id;
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var existCommittedImage = dataManager.GetCommittedImage(accountId, imageId);
            if (existCommittedImage != null)
            {
                existCommittedImage.Content = content;
                existCommittedImage.PartCount = partCount;
                existCommittedImage.CreatedTime = DateTime.Now;
                existCommittedImage.Result = account.IsReviewer ? ReviewResult.Best : existCommittedImage.Result;
                dataManager.UpdateCommittedImage(existCommittedImage);
                LogManager.WriteLog($"客户端 {account} 提交图像,因为已经存在，实行更新操作:{imageId}。");
            }
            else
            {
                if (account.IsReviewer)
                {
                    var labelImage = dataManager.GetLabelImage(imageId);
                    if (labelImage != null)
                    {
                        var committedImage = new CommittedImage
                        {
                            Id = Guid.NewGuid().ToString("N").ToUpper(),
                            AccountId = accountId,
                            CaseId = ReviewrCaseId,
                            ImageId = imageId,
                            CreatedTime = DateTime.Now,
                            IsShared = labelImage.IsShared,
                            IsDeleted = false,
                            Result = ReviewResult.Best,
                            Content = content,
                            PartCount = partCount,
                            Description = labelImage.Description,
                        };
                        dataManager.AddCommittedImage(committedImage);
                        LogManager.WriteLog($"客户端 {account} 提交图像:{imageId}。");
                    }
                }
                else
                {
                    var virtualCaseImage = dataManager.GetVirtualCaseImage(accountId, imageId);
                    if (virtualCaseImage != null)
                    {
                        var labelImage = dataManager.GetLabelImage(virtualCaseImage.ImageId);
                        if (labelImage != null)
                        {
                            var virtualCase = dataManager.GetVirtualCase(accountId, virtualCaseImage.CaseId);
                            if (virtualCase != null)
                            {

                                var committedImage = new CommittedImage
                                {
                                    Id = Guid.NewGuid().ToString("N").ToUpper(),
                                    AccountId = accountId,
                                    CaseId = virtualCase.Id,
                                    ImageId = virtualCaseImage.ImageId,
                                    CreatedTime = DateTime.Now,
                                    IsShared = labelImage.IsShared,
                                    IsDeleted = false,
                                    Result = ReviewResult.No,
                                    Content = content,
                                    PartCount = partCount,
                                    Description = labelImage.Description,
                                };
                                dataManager.AddCommittedImage(committedImage);
                                LogManager.WriteLog($"客户端 {account} 提交图像:{imageId}。");
                            }
                        }
                    }
                }
            }

            var used = Environment.TickCount - start;
            LogManager.WriteLog($"提交图像耗时 {used} ms");
        }

        /// <summary>
        /// Get the total image count
        /// </summary>
        /// <returns></returns>
        public int GetTotalImageCount(string accountId)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var caseCount = dataManager.GetVirtualCaseCount(accountId);
            var imageCount = 0;
            for(var i= 0; i< caseCount; i++)
            {
                var virtualCase = dataManager.GetVirtualCase(accountId, i);
                if(virtualCase != null)
                {
                    imageCount += dataManager.GetVirtualCaseImageCount(virtualCase.Id);
                }
            }
            return imageCount;
        }
        

        public void SetCurrentCommitedImage(string accountId, string imageId)
        {
            var dataManager = ManagerContainer.GetManager<IDataManager>();
            var account = dataManager.GetAccountById(accountId);
            var existCommittedImage = dataManager.GetCommittedImage(accountId, imageId);
            if (existCommittedImage != null)
            {
                existCommittedImage.CreatedTime = DateTime.Now;
                dataManager.UpdateCommittedImage(existCommittedImage);
                LogManager.WriteLog($"客户端 {account} 将提交图像设置为当前已经处理图像：{imageId}。");
            }
        }
    }
}