Elég sok minden ...

2025-03-19 14:38:04 +01:00
parent f74922d01e
commit 63b9beef35
19 changed files with 1652 additions and 6 deletions
@@ -0,0 +1,147 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using WorkFlowCheck.BL.Services.Interfaces;
+using WorkFlowCheck.DL;
+using WorkFlowCheck.DL.Entities;
+
+namespace WorkFlowCheck.BL.Services
+{
+    public class NumberGeneratorService : INumberGeneratorService
+    {
+        private readonly DbContext _dbContext;
+        private static readonly Dictionary<int, SemaphoreSlim> _templateLocks = new();
+
+        public NumberGeneratorService(AppDbContext dbContext)
+        {
+            _dbContext = dbContext;
+        }
+
+        public async Task<string> GenerateNextNumberAsync(int templateId, DateTime? baseDate = null)
+        {
+            var semaphore = GetOrCreateSemaphore(templateId);
+            await semaphore.WaitAsync();
+
+            try
+            {
+                using var transaction = await _dbContext.Database.BeginTransactionAsync();
+
+                var template = await _dbContext.Set<NumberGeneratorTemplate>()
+                    .FirstOrDefaultAsync(t => t.Id == templateId);
+
+                if (template == null)
+                    throw new InvalidOperationException($"Template with ID {templateId} not found.");
+
+                var now = baseDate ?? DateTime.Now;
+                var (year, month) = GetKeyDateParts(template, now);
+
+                var templateDate = await _dbContext.Set<NumberGeneratorTemplateDate>()
+                    .FirstOrDefaultAsync(td => td.NumberGeneratorTemplateId == templateId && td.Year == year && td.Month == month);
+
+                if (templateDate == null)
+                {
+                    templateDate = new NumberGeneratorTemplateDate
+                    {
+                        NumberGeneratorTemplateId = template.Id,
+                        Year = year,
+                        Month = month,
+                        CurrentNumber = 0
+                    };
+                    _dbContext.Add(templateDate);
+                }
+
+                templateDate.CurrentNumber++;
+                var formatted = templateDate.CurrentNumber.ToString(template.DigitFormat);
+                var dynamicSuffix = BuildDynamicSuffix(template, now);
+                var result = BuildFormattedNumber(template, formatted, dynamicSuffix);
+
+                templateDate.LastGeneratedNumber = result;
+                await _dbContext.SaveChangesAsync();
+                await transaction.CommitAsync();
+
+                return result;
+            }
+            catch
+            {
+                await _dbContext.Database.RollbackTransactionAsync();
+                throw;
+            }
+            finally
+            {
+                semaphore.Release();
+            }
+        }
+
+        public async Task<string> GetSampleAsync(int templateId, DateTime? baseDate = null)
+        {
+            var template = await _dbContext.Set<NumberGeneratorTemplate>()
+                .AsNoTracking()
+                .FirstOrDefaultAsync(t => t.Id == templateId);
+
+            if (template == null)
+                throw new InvalidOperationException($"Template with ID {templateId} not found.");
+
+            var now = baseDate ?? DateTime.Now;
+            var formatted = 1.ToString(template.DigitFormat);
+            var dynamicSuffix = BuildDynamicSuffix(template, now);
+
+            return BuildFormattedNumber(template, formatted, dynamicSuffix);
+        }
+
+        private SemaphoreSlim GetOrCreateSemaphore(int templateId)
+        {
+            lock (_templateLocks)
+            {
+                if (!_templateLocks.ContainsKey(templateId))
+                    _templateLocks[templateId] = new SemaphoreSlim(1, 1);
+
+                return _templateLocks[templateId];
+            }
+        }
+
+        private static (int year, int? month) GetKeyDateParts(NumberGeneratorTemplate template, DateTime date)
+        {
+            int year = date.Year;
+            int? month = template.GenerateType == GenerateType.YearAndMonth ? date.Month : null;
+            return (year, month);
+        }
+
+        private static string BuildDynamicSuffix(NumberGeneratorTemplate template, DateTime date)
+        {
+            return template.GenerateType switch
+            {
+                GenerateType.OnlyYear => date.Year.ToString(),
+                GenerateType.YearAndMonth => $"{date.Year}/{date.Month:D2}",
+                _ => template.Suffix
+            };
+        }
+
+        private static string BuildFormattedNumber(NumberGeneratorTemplate template, string formattedNumber, string dynamicSuffix)
+        {
+            var sb = new StringBuilder();
+
+            if (!string.IsNullOrEmpty(template.Prefix))
+                sb.Append(template.Prefix);
+
+            if (!string.IsNullOrEmpty(template.PrefixSeparator) && !string.IsNullOrEmpty(template.Prefix))
+                sb.Append(template.PrefixSeparator);
+
+            sb.Append(formattedNumber);
+
+            if (!string.IsNullOrEmpty(dynamicSuffix))
+            {
+                if (!string.IsNullOrEmpty(template.SuffixSeparator))
+                    sb.Append(template.SuffixSeparator);
+
+                sb.Append(dynamicSuffix);
+            }
+
+            return sb.ToString();
+        }
+    }
+
+
+}