我滴个乖乖

2025-02-20 15:20:28 +08:00
parent 4b54cca70b
commit 485cfcd6f2
2343 changed files with 495732 additions and 1022 deletions
--- a/ZelWiki.Library/PageSelectorGenerator.cs
+++ b/ZelWiki.Library/PageSelectorGenerator.cs
@@ -0,0 +1,71 @@
+using Microsoft.AspNetCore.Http;
+using System.Text;
+
+namespace ZelWiki.Library
+{
+    public static class PageSelectorGenerator
+    {
+        public static string Generate(QueryString? queryString, int? totalPageCount)
+            => Generate(string.Empty, "page", QueryStringConverter.ToDictionary(queryString), totalPageCount);
+
+        public static string Generate(string queryToken, IQueryCollection? queryString, int? totalPageCount)
+            => Generate(string.Empty, queryToken, QueryStringConverter.ToDictionary(queryString), totalPageCount);
+
+        public static string Generate(string url, string queryToken, Dictionary<string, string>? queryString, int? totalPageCount)
+        {
+            var sb = new StringBuilder();
+            int currentPage = 1;
+
+            var firstPage = QueryStringConverter.Clone(queryString);
+            if (firstPage.TryGetValue(queryToken, out var currentPageString))
+            {
+                currentPage = int.Parse(currentPageString);
+            }
+
+            firstPage.Remove(queryToken);
+            firstPage.Add(queryToken, "1");
+
+            var prevPage = QueryStringConverter.Clone(firstPage);
+            prevPage.Remove(queryToken);
+            prevPage.Add(queryToken, $"{currentPage - 1}");
+
+            var nextPage = QueryStringConverter.Clone(firstPage);
+            nextPage.Remove(queryToken);
+            nextPage.Add(queryToken, $"{currentPage + 1}");
+
+            var lastPage = QueryStringConverter.Clone(firstPage);
+            lastPage.Remove(queryToken);
+            lastPage.Add(queryToken, $"{totalPageCount}");
+
+            if ((totalPageCount ?? 0) > 1 || currentPage > 1)
+            {
+                sb.Append($"<center>");
+                if (currentPage > 1)
+                {
+                    sb.Append($"<a href=\"{url}?{QueryStringConverter.FromCollection(firstPage)}\">&lt;&lt; First</a>");
+                    sb.Append("&nbsp; | &nbsp;");
+                    sb.Append($"<a href=\"{url}?{QueryStringConverter.FromCollection(prevPage)}\">&lt; Previous</a>");
+                }
+                else
+                {
+                    sb.Append($"&lt;&lt; First &nbsp; | &nbsp; &lt; Previous");
+                }
+                sb.Append("&nbsp; | &nbsp;");
+
+                if (currentPage < totalPageCount)
+                {
+                    sb.Append($"<a href=\"{url}?{QueryStringConverter.FromCollection(nextPage)}\">Next &gt;</a>");
+                    sb.Append("&nbsp; | &nbsp;");
+                    sb.Append($"<a href=\"{url}?{QueryStringConverter.FromCollection(lastPage)}\">Last &gt;&gt;</a>");
+                }
+                else
+                {
+                    sb.Append("Next &gt; &nbsp; | &nbsp; Last &gt;&gt;");
+                }
+                sb.Append($"</center>");
+            }
+
+            return sb.ToString();
+        }
+    }
+}