From a86388044b4762aefe6052950fbccbb2108603f7 Mon Sep 17 00:00:00 2001
From: jessikitty <jess.rogerson.29@outlook.com>
Date: Wed, 20 May 2026 15:15:33 +1000
Subject: [PATCH] =?UTF-8?q?v1.0.0:=20ApiController=20=E2=80=94=20uploads,?=
 =?UTF-8?q?=20ICS=20parsing?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Controllers/ApiController.cs | 162 +++++++++++++++++++++++++++++++++++
 1 file changed, 162 insertions(+)
 create mode 100644 Controllers/ApiController.cs

diff --git a/Controllers/ApiController.cs b/Controllers/ApiController.cs
new file mode 100644
index 0000000..5b65208
--- /dev/null
+++ b/Controllers/ApiController.cs
@@ -0,0 +1,162 @@
+using Microsoft.AspNetCore.Mvc;
+using NoticeBoard.Data;
+using Ical.Net;
+using Ical.Net.CalendarComponents;
+using Ical.Net.DataTypes;
+
+namespace NoticeBoard.Controllers;
+
+public class ApiController : Controller
+{
+    private readonly IWebHostEnvironment _env;
+    private readonly IConfiguration _config;
+    private readonly IHttpClientFactory _httpClientFactory;
+
+    public ApiController(IWebHostEnvironment env, IConfiguration config, IHttpClientFactory httpClientFactory)
+    {
+        _env = env;
+        _config = config;
+        _httpClientFactory = httpClientFactory;
+    }
+
+    [HttpPost]
+    public async Task<IActionResult> Upload(IFormFile file)
+    {
+        if (file == null || file.Length == 0)
+            return BadRequest(new { error = "No file provided." });
+
+        var maxSize = _config.GetValue<int>("MaxUploadSizeMB", 20) * 1024 * 1024;
+        if (file.Length > maxSize)
+            return BadRequest(new { error = $"File too large. Maximum {maxSize / 1024 / 1024}MB." });
+
+        var allowedExts = new[] { ".jpg", ".jpeg", ".png", ".gif", ".webp", ".svg", ".bmp", ".ico" };
+        var ext = Path.GetExtension(file.FileName).ToLower();
+        if (!allowedExts.Contains(ext))
+            return BadRequest(new { error = "File type not allowed. Use: " + string.Join(", ", allowedExts) });
+
+        var uploadsPath = Path.Combine(_env.WebRootPath, "uploads");
+        if (!Directory.Exists(uploadsPath))
+            Directory.CreateDirectory(uploadsPath);
+
+        var fileName = $"{DateTime.UtcNow:yyyyMMdd_HHmmss}_{Guid.NewGuid():N}{ext}";
+        var filePath = Path.Combine(uploadsPath, fileName);
+
+        using (var stream = new FileStream(filePath, FileMode.Create))
+        {
+            await file.CopyToAsync(stream);
+        }
+
+        return Json(new { location = $"/uploads/{fileName}" });
+    }
+
+    [HttpPost]
+    public async Task<IActionResult> UploadFile(IFormFile file)
+    {
+        if (file == null || file.Length == 0)
+            return BadRequest(new { error = "No file provided." });
+
+        var uploadsPath = Path.Combine(_env.WebRootPath, "uploads");
+        if (!Directory.Exists(uploadsPath))
+            Directory.CreateDirectory(uploadsPath);
+
+        var ext = Path.GetExtension(file.FileName).ToLower();
+        var fileName = $"{DateTime.UtcNow:yyyyMMdd_HHmmss}_{Guid.NewGuid():N}{ext}";
+        var filePath = Path.Combine(uploadsPath, fileName);
+
+        using (var stream = new FileStream(filePath, FileMode.Create))
+        {
+            await file.CopyToAsync(stream);
+        }
+
+        return Json(new { url = $"/uploads/{fileName}", name = file.FileName, size = file.Length });
+    }
+
+    [HttpGet]
+    public IActionResult ListUploads()
+    {
+        var uploadsPath = Path.Combine(_env.WebRootPath, "uploads");
+        if (!Directory.Exists(uploadsPath))
+            return Json(new { files = Array.Empty<object>() });
+
+        var files = Directory.GetFiles(uploadsPath)
+            .Select(f => new FileInfo(f))
+            .OrderByDescending(f => f.CreationTimeUtc)
+            .Select(f => new
+            {
+                name = f.Name,
+                url = $"/uploads/{f.Name}",
+                size = f.Length,
+                created = f.CreationTimeUtc
+            });
+
+        return Json(new { files });
+    }
+
+    [HttpPost]
+    public IActionResult DeleteUpload([FromBody] DeleteFileRequest request)
+    {
+        if (string.IsNullOrEmpty(request?.FileName))
+            return BadRequest();
+
+        var filePath = Path.Combine(_env.WebRootPath, "uploads", Path.GetFileName(request.FileName));
+        if (System.IO.File.Exists(filePath))
+        {
+            System.IO.File.Delete(filePath);
+            return Ok();
+        }
+        return NotFound();
+    }
+
+    [HttpGet]
+    public async Task<IActionResult> ParseIcs(string url)
+    {
+        if (string.IsNullOrWhiteSpace(url))
+            return BadRequest(new { error = "No URL provided." });
+
+        try
+        {
+            string icsContent;
+
+            if (url.StartsWith("/uploads/"))
+            {
+                var filePath = Path.Combine(_env.WebRootPath, url.TrimStart('/'));
+                if (!System.IO.File.Exists(filePath))
+                    return NotFound(new { error = "ICS file not found." });
+                icsContent = await System.IO.File.ReadAllTextAsync(filePath);
+            }
+            else
+            {
+                var client = _httpClientFactory.CreateClient();
+                client.Timeout = TimeSpan.FromSeconds(15);
+                icsContent = await client.GetStringAsync(url);
+            }
+
+            var calendar = Calendar.Load(icsContent);
+            var now = DateTime.Now;
+            var upcoming = calendar.Events
+                .Where(e => e.DtEnd != null ? e.DtEnd.AsSystemLocal >= now : e.DtStart.AsSystemLocal >= now.AddDays(-1))
+                .OrderBy(e => e.DtStart.AsSystemLocal)
+                .Take(20)
+                .Select(e => new
+                {
+                    summary = e.Summary,
+                    description = e.Description,
+                    location = e.Location,
+                    start = e.DtStart?.AsSystemLocal.ToString("yyyy-MM-dd HH:mm"),
+                    end = e.DtEnd?.AsSystemLocal.ToString("yyyy-MM-dd HH:mm"),
+                    allDay = e.IsAllDay
+                });
+
+            return Json(new { events = upcoming });
+        }
+        catch (Exception ex)
+        {
+            return BadRequest(new { error = $"Failed to parse ICS: {ex.Message}" });
+        }
+    }
+}
+
+public class DeleteFileRequest
+{
+    public string? FileName { get; set; }
+}