fix: rev db model, added missing entities and helper functions

WebApp/Endpoints/GeneralUseHelperFunctions.cs

@@ -0,0 +1,69 @@
+using Microsoft.EntityFrameworkCore;
+using WebApp.Data;
+using WebApp.Entities;
+
+namespace WebApp.Endpoints;
+
+public class GeneralUseHelpers
+{
+
+    private readonly ApplicationDbContext _context;
+
+    public GeneralUseHelpers(ApplicationDbContext context)
+    {
+        _context = context;
+    }
+
+    async public Task<Token?> FindTokenFromString(string token_str)
+    {
+        // foreach (Token t in _context.Tokens) if (t.Value == token) return t;
+        // return null;
+        return await _context.Tokens.FirstOrDefaultAsync(t => t.Value == token_str);
+    }
+
+    async public Task<User?> GetUserFromToken(Token? t)
+    {
+        // Zwróci null, gdy nie znaleziono użytkownika
+        if (t is null) return null;
+        User? user = await _context.WebUsers.FindAsync(t.Value);
+
+        return user;
+    }
+
+    async public Task<Organisation?> GetOrganisationFromToken(Token? t)
+    {
+        User? user = await GetUserFromToken(t);
+        if (user is not null && user.IsOrganisation)
+        {
+            Organisation? org = await _context.Organisations.FindAsync(t.UserId);
+
+            if (org is null)
+            {
+                Console.WriteLine("!!!");
+            }
+
+            return org;
+        }
+        else return null;
+
+    }
+
+    public string? GetTokenStrFromHTTPContext(HttpContext httpContext)
+    {
+        var cookies = httpContext.Request.Cookies;
+        string? token = cookies["token"];
+        return token;
+    }
+
+    async public Task<Token?> GetTokenFromHTTPContext(HttpContext httpContext)
+    {
+        var cookies = httpContext.Request.Cookies;
+        string? token_str = cookies["token"];
+        if (token_str is not null)
+        {
+            Token? token = await FindTokenFromString(token_str);
+            if (token is not null) return token;
+        }
+        return null;
+    }
+}