using System.Text;
using DS.Module.Core;
using DS.Module.Core.Extensions;
using DS.WMS.Core.Application.Dtos;
using DS.WMS.Core.Application.Entity;
using DS.WMS.Core.Application.Interface;
using DS.WMS.Core.Fee.Entity;
using DS.WMS.Core.Fee.Method;
using DS.WMS.Core.Info.Entity;
using DS.WMS.Core.Op.Entity;
using Microsoft.Extensions.Hosting;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace DS.WMS.Core.Application.Method
{
    /// <summary>
    /// 发票模板服务
    /// </summary>
    public class InvoiceTemplateService : FeeServiceBase, IInvoiceTemplateService
    {
        const int MAX_NUM = 3;//每个用户的最大模板数量

        /// <summary>
        /// 初始化 
        /// </summary>
        /// <param name="serviceProvider"></param>
        public InvoiceTemplateService(IServiceProvider serviceProvider) : base(serviceProvider)
        {
        }

        /// <summary>
        /// 获取模板字段
        /// </summary>
        /// <returns></returns>
        public DataResult<List<TemplateField>> GetFields(IHostEnvironment environment)
        {
            string path = Path.Combine(environment.ContentRootPath, "inv_template.json");
            if (!File.Exists(path))
                return DataResult<List<TemplateField>>.FailedWithDesc(nameof(MultiLanguageConst.TemplateFileNotFound));

            string json = File.ReadAllText(path);
            var list = JsonConvert.DeserializeObject<List<TemplateField>>(json);
            return DataResult<List<TemplateField>>.Success(list);
        }

        /// <summary>
        /// 获取列表
        /// </summary>
        /// <param name="userId">模板所有人</param>
        /// <param name="createIfEmpty">如果为空则创建</param>
        /// <returns></returns>
        public DataResult<List<InvoiceTemplate>> GetList(long userId, bool createIfEmpty)
        {
            var list = TenantDb.Queryable<InvoiceTemplate>().Where(x => x.CreateBy == userId)
                .OrderByDescending(x => x.CreateTime).Take(MAX_NUM).ToList();

            if (list.Count == 0 && createIfEmpty)
            {
                var arr = new InvoiceTemplate[MAX_NUM];
                for (int i = 0; i < MAX_NUM; i++)
                {
                    arr[i] = new InvoiceTemplate { Content = string.Empty, Name = $"{MultiLanguageConst.DefaultTemplateName}{i + 1}" };
                }

                return Save(arr);
            }

            return DataResult<List<InvoiceTemplate>>.Success(list);
        }

        /// <summary>
        /// 保存模板
        /// </summary>
        /// <returns></returns>
        public DataResult<List<InvoiceTemplate>> Save(params InvoiceTemplate[] templates)
        {
            int rows = TenantDb.Storageable(templates).DefaultAddElseUpdate().ExecuteCommand();
            return rows > 0 ?
                DataResult<List<InvoiceTemplate>>.Success(new List<InvoiceTemplate>(templates)) :
                DataResult<List<InvoiceTemplate>>.FailedWithDesc(nameof(MultiLanguageConst.Operation_Failed));
        }

        /// <summary>
        /// 渲染模板
        /// </summary>
        /// <param name="id">发票申请ID</param>
        /// <param name="templateText">模板文本</param>
        /// <param name="environment"></param>
        /// <returns></returns>
        public async Task<DataResult<string>> RenderTemplateAsync(long id, string templateText, IHostEnvironment environment)
        {
            var dto = await GetTemplateFormAsync(id);
            if (dto == null)
                return DataResult<string>.FailedWithDesc(nameof(MultiLanguageConst.EmptyData));

            string json = JsonConvert.SerializeObject(dto);
            var jObj = JObject.Parse(json);
            var jArray = jObj[nameof(InvoiceTemplateForm.Details)] as JArray;

            StringBuilder sb = new(templateText);
            StringBuilder sb2 = new();
            var fields = GetFields(environment).Data;
            foreach (var field in fields)
            {
                //循环输出
                if (templateText.Contains($"<{field.FieldName}>"))
                {
                    foreach (var item in jArray)
                    {
                        sb2.Append(item[field.FieldName]?.Value<string>());
                        sb2.Append(' ');
                    }

                    if (sb2.Length > 0)
                    {
                        sb2.Remove(sb2.Length - 1, 1); //移除最后一个空格
                        sb = sb.Replace($"<{field.FieldName}>", sb2.ToString());
                        sb2.Clear();
                    }
                }
                //单次输出
                else if (templateText.Contains($"[{field.FieldName}]"))
                {
                    string val = string.Empty;
                    if (field.IsSumValue)
                    {
                        val = jObj[field.FieldName]?.Value<string>();
                    }
                    else if (jArray.Count > 0)
                    {
                        var item1 = jArray[0];
                        val = item1[field.FieldName]?.Value<string>();
                    }

                    if (!val.IsNullOrEmpty())
                        sb = sb.Replace($"[{field.FieldName}]", val);
                }
            }

            return DataResult<string>.Success(sb.ToString());
        }

        /// <summary>
        /// 获取发票模板所需数据
        /// </summary>
        /// <param name="id">发票申请ID</param>
        /// <returns></returns>
        internal async Task<InvoiceTemplateForm> GetTemplateFormAsync(long id)
        {
            var dto = await TenantDb.Queryable<InvoiceApplication>()
                .LeftJoin<InfoClientBank>((a, b) => a.CustomerBankId == b.Id)
                    .Where((a, b) => a.Id == id).Select((a, b) => new InvoiceTemplateForm
                    {
                        CustomerId = a.CustomerId,
                        CustomerName = a.CustomerName,
                        CustomerBankId = a.CustomerBankId,
                        ClientAccount = b.Account,
                        ClientBankName = b.BankName
                    }).FirstAsync();

            if (dto != null)
            {
                dto.Details = await TenantDb.Queryable<ApplicationDetail>()
                    .LeftJoin<FeeRecord>((d, f) => d.RecordId == f.Id)
                    .Where(d => d.ApplicationId == id)
                   .Select((d, f) => new InvoiceTemplateDetail
                   {
                       Amount = d.ApplyAmount,
                       OriginalAmount = d.OriginalAmount,
                       OriginalCurrency = d.OriginalCurrency,
                       OriginalRate = f.ExchangeRate,
                       ExchangeRate = d.ExchangeRate
                   }).ToListAsync();

                var gList = dto.Details.GroupBy(x => x.BusinessType).ToList();
                foreach (var g in gList)
                {
                    var ids = g.Select(x => x.BusinessId).ToList();
                    switch (g.Key)
                    {
                        case BusinessType.OceanShippingExport:
                            var list1 = await TenantDb.Queryable<SeaExport>().Where(x => ids.Contains(x.Id)).Select(x => new
                            {
                                x.Id,
                                x.MBLNO,
                                x.CustomerNo,
                                ClientName = x.CustomerName,
                                x.ETD,
                                x.CntrTotal,
                                x.AccountDate,
                                x.OperatorCode,
                                x.Vessel,
                                x.Voyno,
                                x.LoadPort,
                                x.DischargePort,
                                x.Destination
                            }).ToListAsync();
                            foreach (var item in g)
                            {
                                var biz = list1.Find(x => x.Id == item.BusinessId);
                                if (biz != null)
                                {
                                    item.MBLNO = biz.MBLNO;
                                    item.ClientName = biz.ClientName;
                                    item.CustomerNo = biz.CustomerNo;
                                    item.ETD = biz.ETD;
                                    item.CntrTotal = biz.CntrTotal;
                                    item.Vessel = biz.Vessel;
                                    item.Voyage = biz.Voyno;
                                    item.LoadPort = biz.LoadPort;
                                    item.DischargePort = biz.DischargePort;
                                    item.Destination = biz.Destination;
                                    item.ForeignAmount = item.OriginalCurrency != RMB_CODE ? item.OriginalAmount : 0;
                                    item.RMBAmount = item.OriginalCurrency == RMB_CODE ? item.OriginalAmount : 0;
                                }
                            }
                            break;

                        case BusinessType.OceanShippingImport:
                            break;
                    }
                }

                dto.ForeignTotal = dto.Details.Sum(x => x.ForeignAmount);
                dto.RMBTotal = dto.Details.Sum(x => x.RMBAmount);
                dto.ExchangeRateTotal = dto.Details.Sum(x => x.ExchangeRate);
            }

            return dto;
        }
    }
}