Rearranged repo to make room for additional projects

ComiServ/Models/Paginated.cs

@@ -0,0 +1,95 @@
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.CodeAnalysis.CSharp;
+using Microsoft.EntityFrameworkCore;
+
+namespace ComiServ.Models;
+public class Paginated<T>
+{
+    public int Max { get; }
+    public int Page { get; }
+    public bool Last { get; }
+    public int Count { get; }
+    public List<T> Items { get; }
+    public Paginated(int max, int page, IEnumerable<T> iter)
+    {
+        if (max <= 0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(max), max, "must be greater than 0");
+        }
+        if (page < 0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(page), page, "must be greater than or equal to 0");
+        }
+        Max = max;
+        Page = page;
+        Items = iter.Skip(max * page).Take(max + 1).ToList();
+        if (Items.Count > max)
+        {
+            Last = false;
+            Items.RemoveAt(max);
+        }
+        else
+        {
+            Last = true;
+        }
+        Count = Items.Count;
+    }
+    private Paginated(int max, int page, bool last, List<T> items)
+    {
+        Max = max;
+        Page = page;
+        Last = last;
+        Items = items;
+        Count = Items.Count;
+    }
+    public static async Task<Paginated<T>> CreateAsync(int max, int page, IQueryable<T> iter)
+    {
+        if (max <= 0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(max), max, "must be greater than 0");
+        }
+        if (page < 0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(page), page, "must be greater than or equal to 0");
+        }
+        var items = await iter.Skip(max * page).Take(max + 1).ToListAsync();
+        bool last = true;
+        if (items.Count > max)
+        {
+            last = false;
+            items.RemoveAt(max);
+        }
+        return new(max, page, last, items);
+    }
+    public static async Task<Paginated<T>> CreateAsync(int max, int page, IAsyncEnumerable<T> iter)
+    {
+        if (max <= 0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(max), max, "must be greater than 0");
+        }
+        if (page < 0)
+        {
+            throw new ArgumentOutOfRangeException(nameof(page), page, "must be greater than or equal to 0");
+        }
+        List<T> items = [];
+        var skip = max * page;
+        await foreach (T item in iter)
+        {
+            if (skip > 0)
+            {
+                skip--;
+                continue;
+            }
+            items.Add(item);
+            if (items.Count >= max + 1)
+                break;
+        }
+        var last = true;
+        if (items.Count > max)
+        {
+            last = false;
+            items.RemoveAt(max);
+        }
+        return new(max, page, last, items);
+    }
+}