From b7e812bb639604d032d353893649a72be0aee310 Mon Sep 17 00:00:00 2001
From: James Kolpack <james.kolpack@gmail.com>
Date: Fri, 9 Jan 2026 11:54:55 -0500
Subject: [PATCH] Refactor EventOccurrenceService to implement database-backed
 event occurrence retrieval

This commit updates the EventOccurrenceService to replace mock data with a database-backed implementation for retrieving event occurrences. The GetEventOccurrencesAsync and GetEventOccurrencesForDateRangeAsync methods now utilize Entity Framework to fetch data from the AppDbContext, enhancing the service's functionality and ensuring accurate event management.
---
 WebApp/Services/EventOccurrenceService.cs | 99 +++++------------------
 1 file changed, 20 insertions(+), 79 deletions(-)

diff --git a/WebApp/Services/EventOccurrenceService.cs b/WebApp/Services/EventOccurrenceService.cs
index 16d3c6f..cdbf9ba 100644
--- a/WebApp/Services/EventOccurrenceService.cs
+++ b/WebApp/Services/EventOccurrenceService.cs
@@ -1,92 +1,33 @@
 using Core.Entities;
+using Data;
+using Microsoft.EntityFrameworkCore;
 
 namespace WebApp.Services;
 
 public class EventOccurrenceService : IEventOccurrenceService
 {
-    public Task<IEnumerable<EventOccurrence>> GetEventOccurrencesAsync()
-    {
-        // Mock data for demonstration purposes
-        // This will be replaced with database-backed implementation later
-        var mockOccurrences = new List<EventOccurrence>
-        {
-            new EventOccurrence
-            {
-                Name = "Opening Ceremony",
-                Date = "March 15",
-                Time = "8:00 a.m.",
-                StartTime = new DateTime(2026, 3, 15, 8, 0, 0),
-                EndTime = new DateTime(2026, 3, 15, 9, 0, 0),
-                Location = "Main Auditorium"
-            },
-            new EventOccurrence
-            {
-                Name = "Sign-up",
-                Date = "March 15",
-                Time = "9:30 a.m.",
-                StartTime = new DateTime(2026, 3, 15, 9, 30, 0),
-                EndTime = new DateTime(2026, 3, 15, 11, 0, 0),
-                Location = "Registration Hall"
-            },
-            new EventOccurrence
-            {
-                Name = "Judging",
-                Date = "March 15",
-                Time = "1:00 p.m.",
-                StartTime = new DateTime(2026, 3, 15, 13, 0, 0),
-                EndTime = new DateTime(2026, 3, 15, 17, 0, 0),
-                Location = "Exhibition Hall"
-            },
-            new EventOccurrence
-            {
-                Name = "Submit",
-                Date = "March 16",
-                Time = "8:00 a.m.",
-                StartTime = new DateTime(2026, 3, 16, 8, 0, 0),
-                EndTime = new DateTime(2026, 3, 16, 10, 0, 0),
-                Location = "Submission Desk"
-            },
-            new EventOccurrence
-            {
-                Name = "Competition 1",
-                Date = "March 16",
-                Time = "10:30 a.m.",
-                StartTime = new DateTime(2026, 3, 16, 10, 30, 0),
-                EndTime = new DateTime(2026, 3, 16, 12, 0, 0),
-                Location = "Competition Hall"
-            },
-            new EventOccurrence
-            {
-                Name = "Competition 2",
-                Date = "March 16",
-                Time = "10:30 a.m.",
-                StartTime = new DateTime(2026, 3, 16, 11, 30, 0),
-                EndTime = new DateTime(2026, 3, 16, 13, 0, 0),
-                Location = "Competition Hall"
-            },
-            new EventOccurrence
-            {
-                Name = "Awards Ceremony",
-                Date = "March 17",
-                Time = "2:00 p.m.",
-                StartTime = new DateTime(2026, 3, 17, 14, 0, 0),
-                EndTime = new DateTime(2026, 3, 17, 16, 0, 0),
-                Location = "Main Auditorium"
-            }
-        };
+    private readonly AppDbContext _context;
 
-        return Task.FromResult<IEnumerable<EventOccurrence>>(mockOccurrences);
+    public EventOccurrenceService(AppDbContext context)
+    {
+        _context = context;
     }
 
-    public Task<IEnumerable<EventOccurrence>> GetEventOccurrencesForDateRangeAsync(DateTime start, DateTime end)
+    public async Task<IEnumerable<EventOccurrence>> GetEventOccurrencesAsync()
     {
-        return GetEventOccurrencesAsync().ContinueWith(task =>
-        {
-            var allOccurrences = task.Result;
-            return allOccurrences.Where(eo => 
-                eo.StartTime.Date >= start.Date && 
-                eo.StartTime.Date <= end.Date);
-        });
+        return await _context.EventOccurrences
+            .Include(eo => eo.EventDefinition)
+            .OrderBy(eo => eo.StartTime)
+            .ToListAsync();
+    }
+
+    public async Task<IEnumerable<EventOccurrence>> GetEventOccurrencesForDateRangeAsync(DateTime start, DateTime end)
+    {
+        return await _context.EventOccurrences
+            .Include(eo => eo.EventDefinition)
+            .Where(eo => eo.StartTime.Date >= start.Date && eo.StartTime.Date <= end.Date)
+            .OrderBy(eo => eo.StartTime)
+            .ToListAsync();
     }
 }