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using System.Collections.Generic;
using System.IO;
using System.Linq;
using BirdsiteLive.ActivityPub;
using BirdsiteLive.Common.Settings;
using Tweetinvi.Models;
using Tweetinvi.Models.Entities;
namespace BirdsiteLive.Domain
{
public interface IStatusService
{
Note GetStatus(string username, ITweet tweet);
}
public class StatusService : IStatusService
{
private readonly InstanceSettings _instanceSettings;
#region Ctor
public StatusService(InstanceSettings instanceSettings)
{
_instanceSettings = instanceSettings;
}
#endregion
public Note GetStatus(string username, ITweet tweet)
{
var actorUrl = $"https://{_instanceSettings.Domain}/users/{username}";
var noteId = $"https://{_instanceSettings.Domain}/users/{username}/statuses/{tweet.Id}";
var noteUrl = $"https://{_instanceSettings.Domain}/@{username}/{tweet.Id}";
var to = $"{actorUrl}/followers";
var apPublic = "https://www.w3.org/ns/activitystreams#Public";
var note = new Note
{
id = $"{noteId}/activity",
published = tweet.CreatedAt.ToString("s") + "Z",
url = noteUrl,
attributedTo = actorUrl,
//to = new [] {to},
//cc = new [] { apPublic },
to = new[] { to },
cc = new[] { apPublic },
//cc = new string[0],
sensitive = false,
content = $"<p>{tweet.Text}</p>",
attachment = GetAttachments(tweet.Media),
tag = new string[0]
};
return note;
}
private Attachment[] GetAttachments(List<IMediaEntity> media)
{
var result = new List<Attachment>();
foreach (var m in media)
{
var mediaUrl = GetMediaUrl(m);
var mediaType = GetMediaType(m.MediaType, mediaUrl);
if (mediaType == null) continue;
var att = new Attachment
{
type = "Document",
mediaType = mediaType,
url = mediaUrl
};
result.Add(att);
}
return result.ToArray();
}
private string GetMediaUrl(IMediaEntity media)
{
switch (media.MediaType)
{
case "photo": return media.MediaURLHttps;
case "animated_gif": return media.VideoDetails.Variants[0].URL;
case "video": return media.VideoDetails.Variants.OrderByDescending(x => x.Bitrate).First().URL;
default: return null;
}
}
private string GetMediaType(string mediaType, string mediaUrl)
{
switch (mediaType)
{
case "photo":
var ext = Path.GetExtension(mediaUrl);
switch (ext)
{
case ".jpg":
case ".jpeg":
return "image/jpeg";
case ".png":
return "image/png";
}
return null;
case "animated_gif":
return "image/gif";
case "video":
return "video/mp4";
}
return null;
}
}
}