using MongoDB.Entities;

namespace PrivaPub.Models.Social
{
	// A Web Push subscription (completion program R9). One per Mastodon access token, as on Mastodon (a new one made with the
	// same token replaces it), and so one persona's, the token's subject: never its login's, so nothing pairs sibling
	// personas. It holds the token it was made with, which the encrypted payload carries back to the client as Mastodon's
	// does (`access_token`), so it goes the moment the token does: revoked (/oauth/revoke, its login's sessions ended), its
	// persona suspended, moved or deleted, a restore. Never in a backup (ServerBackup.Excluded).
	public class PushSubscription : Entity
	{
		public string AvatarId { get; set; }
		public string TokenId { get; set; }//the OpenIddict token's id; unique
		public string AccessToken { get; set; }//the bearer token as the client sent it when it subscribed
		public string Endpoint { get; set; }//the push service's URL for this client
		public string P256dh { get; set; }//the client's ECDH public key: an uncompressed P-256 point, base64url as it sent it
		public string Auth { get; set; }//its 16-byte authentication secret, base64url as it sent it
		public bool Standard { get; set; }//RFC 8291 aes128gcm and RFC 8292 `vapid` when true (Mastodon 4.4), else the aesgcm draft
		public List<string> Alerts { get; set; } = new();//the alerts turned on, by Mastodon's names (WebPush.Alerts)
		public PushPolicy Policy { get; set; } = PushPolicy.All;
		public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
		public DateTime UpdatedAt { get; set; } = DateTime.UtcNow;
	}

	// whose notifications are pushed (Mastodon's data[policy]): everyone's, the accounts the persona follows, the accounts
	// that follow it, nobody's
	public enum PushPolicy
	{
		All,
		Followed,
		Follower,
		None
	}
}