using BaseOUDAL;
using System.Globalization;
using YLErp.Model;

namespace YLErp.Modules.MarginModule
{
    public class MarginTemplateService : YLBaseService
    {
        public MarginTemplateService(OptUserInfo userInfo) : base(userInfo)
        {
        }

        public MarginTemplateService(YLBaseService baseService) : base(baseService)
        {
        }

        /// <summary>
        /// 查询margin_template列表
        /// </summary>
        public SearchListResult<margin_template> SearchTradeMarginList(margin_templateReq req)
        {
            var query = from margin_template in DbContext.margin_template
                        select margin_template;

            if (!string.IsNullOrEmpty(req.Name))
            {
                query = query.Where(d => d.Name == req.Name);
            }

            if (string.IsNullOrEmpty(req.sidx))
            {
                req.sidx = "id";
                req.sord = "desc";
            }

            var retListResult = query.ToSearchList(req);

            return retListResult;
        }

        public SearchListResult<margin_template_v2> SearchMarginTemplateV2List(margin_template_v2Req req)
        {
            var query = from margin_template_v2 in DbContext.margin_template_v2
                        select margin_template_v2;

            if (!string.IsNullOrEmpty(req.Name))
            {
                query = query.Where(d => d.Name.Contains(req.Name));
            }

            if (!string.IsNullOrEmpty(req.TradeType))
            {
                query = query.Where(d => d.TradeTypes.Contains(req.TradeType));
            }

            if (req.RuleType != null)
            {
                query = query.Where(d => d.RuleType == req.RuleType.Value);
            }

            if (req.MarginType != null)
            {
                query = query.Where(d => d.MarginType == req.MarginType.Value);
            }

            if(req.IsValid.HasValue)
            {
                query = query.Where(d => d.IsValid == req.IsValid.Value);
            }

            query = query.Where(d => d.IsDefault == req.IsDefault);
            query = query.Where(d => d.IsForClient == req.IsForClient);

            if (string.IsNullOrEmpty(req.sidx))
            {
                req.sidx = "id";
                req.sord = "desc";
            }

            var retListResult = query.ToSearchList(req);
            SetBookScopeNames(retListResult);

            return retListResult;
        }

        private void SetBookScopeNames(SearchListResult<margin_template_v2> result)
        {
            var rows = result?.rows?.ToList();
            if (rows == null || rows.Count == 0)
            {
                return;
            }

            var parsedRows = rows.Select(row => new
            {
                Row = row,
                BookIds = row == null ? new List<int>() : ParseBookIdsForDisplay(row.BookIds)
            }).ToList();
            var bookIds = parsedRows.SelectMany(item => item.BookIds).Distinct().ToList();
            var bookNames = bookIds.Count == 0
                ? new Dictionary<int, string>()
                : DbContext.assetunit
                    .AsNoTracking()
                    .Where(book => bookIds.Contains(book.id))
                    .Select(book => new { book.id, book.Name })
                    .ToDictionary(book => book.id, book => book.Name);

            foreach (var item in parsedRows)
            {
                if (item.Row == null)
                {
                    continue;
                }

                item.Row.BookScopeName = string.IsNullOrWhiteSpace(item.Row.BookIds)
                    ? "全部"
                    : string.Join("，", item.BookIds
                        .Where(bookId => bookNames.ContainsKey(bookId))
                        .Select(bookId => bookNames[bookId]));
            }

            result.rows = rows;
        }

        private static List<int> ParseBookIdsForDisplay(string bookIds)
        {
            var ids = new List<int>();
            if (string.IsNullOrWhiteSpace(bookIds))
            {
                return ids;
            }

            foreach (var rawId in bookIds.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
            {
                if (int.TryParse(rawId.Trim(), NumberStyles.None, CultureInfo.InvariantCulture, out var id) && id > 0)
                {
                    ids.Add(id);
                }
            }

            return ids;
        }
    }
}