Tranga/API/Schema/NotificationsContext/NotificationConnectors/NotificationConnector.cs

using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Text;
using log4net;
using Microsoft.EntityFrameworkCore;
using Newtonsoft.Json;

namespace API.Schema.NotificationsContext.NotificationConnectors;

[PrimaryKey("Name")]
public class NotificationConnector(string name, string url, Dictionary<string, string> headers, string httpMethod, string body)
{
    [StringLength(64)]
    [Required]
    public string Name { get; init; } = name;
    
    [StringLength(2048)]
    [Required]
    [Url]
    public string Url { get; internal set; } = url;

    [Required]
    public Dictionary<string, string> Headers { get; internal set; } = headers;

    [StringLength(8)]
    [Required]
    public string HttpMethod { get; internal set; } = httpMethod;

    [StringLength(4096)]
    [Required]
    public string Body { get; internal set; } = body;

    [JsonIgnore]
    [NotMapped]
    private readonly HttpClient Client = new()
    {
        DefaultRequestHeaders = { { "User-Agent", Tranga.Settings.UserAgent } }
    };
    
    [JsonIgnore]
    [NotMapped]
    protected ILog Log = LogManager.GetLogger(name);

    public void SendNotification(string title, string notificationText)
    {
        Log.Info($"Sending notification: {title} - {notificationText}");
        string formattedUrl = FormatStr(Url, title, notificationText);
        string formattedBody = FormatStr(Body, title, notificationText);
        Dictionary<string, string> formattedHeaders = Headers.ToDictionary(h => h.Key, 
            h => FormatStr(h.Value, title, notificationText));

        HttpRequestMessage request = new(System.Net.Http.HttpMethod.Parse(HttpMethod), formattedUrl);
        foreach (var (key, value) in formattedHeaders)
            request.Headers.Add(key, value);
        request.Content = new StringContent(formattedBody);
        request.Content.Headers.ContentType = new ("application/json");
        Log.Debug($"Request: {request}");

        HttpResponseMessage response = Client.Send(request);
        Log.Debug($"Response status code: {response.StatusCode} {response.Content.ReadAsStringAsync().Result}");
    }

    private string FormatStr(string str, string title, string text)
    {
        StringBuilder sb = new (str);
        sb.Replace("%title", title);
        sb.Replace("%text", text);
            
        return sb.ToString();
    }

    public override string ToString() => $"{GetType().Name} {Name}";
}