Initial commit: JDE Scoping Tool migration project

Set up repository with legacy .NET Framework 4.8 source (OLD/), new .NET 10 Blazor solution (NEW/), OpenSpec specifications, documentation, and project configuration.
2026-01-02 07:43:29 -05:00
commit 26ff8d9b4f
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+using System;
+
+namespace DataModel.Helpers
+{
+    /// <summary>
+    /// JDE date/time conversion helpers
+    /// </summary>
+    public static class DateTimeHelpers
+    {
+        /// <summary>
+        /// Strips time component from datetime
+        /// </summary>
+        /// <param name="source">Datetime to strip time component from</param>
+        /// <returns>Date component of source datetime</returns>
+        public static int ToJDEDate(this DateTime source)
+        {
+            return (source.Year < 2000 ? 0 : 100000) + (source.Year % 100) * 1000 + source.DayOfYear;
+        }
+
+        public static DateTime FromJDEDate(this int sourceDate)
+        {
+            if (sourceDate == 0) { return new DateTime(1900, 1, 1); }
+
+            DateTime baseDate = new DateTime(1900, 1, 1);
+            try
+            {
+                string strSource = sourceDate.ToString();
+
+                if (strSource.Length < 5 || strSource.Length > 6) { throw new Exception($"invalid source date length ({strSource.Length})"); }
+
+                if (strSource.StartsWith("1"))
+                {
+                    baseDate = new DateTime(2000, 1, 1);
+                }
+
+                baseDate = baseDate.AddYears(int.Parse(strSource.Substring(1, 2)));
+                baseDate = baseDate.AddDays(int.Parse(strSource.Substring(3)) - 1);
+            }
+            catch
+            {
+                //Do nothing
+            }
+
+            return baseDate;
+        }
+
+        /// <summary>
+        /// Strips date component from datetime
+        /// </summary>
+        /// <param name="source">Datetime to strip date component from</param>
+        /// <returns>Time component of source datetime</returns>
+        public static int ToJDETime(this DateTime source)
+        {
+            return source.Hour * 10000 + source.Minute * 100 + source.Second;
+        }
+
+        /// <summary>
+        /// Converts the JDE date + time components into a datetime
+        /// </summary>
+        /// <param name="sourceDate">JDE date component</param>
+        /// <param name="sourceTime">JDE time component</param>
+        /// <returns>Combined datetime from source JDE date/time components</returns>
+        public static DateTime FromJDEDateTime(this DateTime sourceDate, int sourceTime)
+        {
+            try
+            {
+                int hours = sourceTime / 10000;
+                int minutes = (sourceTime % 10000) / 100;
+                int seconds = sourceTime % 100;
+
+                return sourceDate.Date.AddHours(hours).AddMinutes(minutes).AddSeconds(seconds);
+            }
+            catch
+            {
+                return sourceDate;
+
+            }
+        }
+    }
+}