Initial version

EonaCat.LogStack.Status/Pages/Logs.cshtml.cs

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+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.EntityFrameworkCore;
+using EonaCat.LogStack.Status.Data;
+using EonaCat.LogStack.Status.Models;
+
+namespace EonaCat.LogStack.Status.Pages;
+
+// This file is part of the EonaCat project(s) which is released under the Apache License.
+// See the LICENSE file or go to https://EonaCat.com/License for full license details.
+
+public class LogsModel : PageModel
+{
+    private readonly DatabaseContext _db;
+    public LogsModel(DatabaseContext db) => _db = db;
+
+    public List<LogEntry> Entries { get; set; } = new();
+    public List<string> Sources { get; set; } = new();
+    public int TotalCount { get; set; }
+    public int TotalPages { get; set; }
+
+    [BindProperty(SupportsGet = true)] public string? Level { get; set; }
+    [BindProperty(SupportsGet = true)] public string? Source { get; set; }
+    [BindProperty(SupportsGet = true)] public string? Search { get; set; }
+    [BindProperty(SupportsGet = true)] public DateTime? FromDate { get; set; }
+    [BindProperty(SupportsGet = true)] public DateTime? ToDate { get; set; }
+    [BindProperty(SupportsGet = true)] public int PageIndex { get; set; } = 1;
+
+    private const int PageSize = 100;
+
+    public async Task<IActionResult> OnGetAsync()
+    {
+        if (HttpContext.Session.GetString("IsAdmin") != "true")
+        {
+            return RedirectToPage("/Admin/Login");
+        }
+
+        Sources = await _db.Logs.Select(l => l.Source).Distinct().OrderBy(s => s).ToListAsync();
+
+        var q = _db.Logs.AsQueryable();
+
+        if (!string.IsNullOrWhiteSpace(Level))
+        {
+            q = q.Where(l => l.Level == Level.ToLower());
+        }
+
+        if (!string.IsNullOrWhiteSpace(Source))
+        {
+            q = q.Where(l => l.Source == Source);
+        }
+
+        if (!string.IsNullOrWhiteSpace(Search))
+        {
+            q = q.Where(l => l.Message.Contains(Search) || (l.Exception != null && l.Exception.Contains(Search)));
+        }
+
+        if (FromDate.HasValue)
+        {
+            q = q.Where(l => l.Timestamp >= FromDate.Value.ToUniversalTime());
+        }
+
+        if (ToDate.HasValue)
+        {
+            q = q.Where(l => l.Timestamp <= ToDate.Value.AddDays(1).ToUniversalTime());
+        }
+
+        TotalCount = await q.CountAsync();
+        TotalPages = (int)Math.Ceiling((double)TotalCount / PageSize);
+
+        Entries = await q
+            .OrderByDescending(l => l.Timestamp)
+            .Skip((PageIndex - 1) * PageSize)
+            .Take(PageSize)
+            .ToListAsync();
+
+        return Page();
+    }
+}