1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

// Copyright (c) XMPP-RS Contributors
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.

use crate::pubsub::InvalidOption;
use std::str::FromStr;

/// The sending behavior when subscribing to a given pubsub node.
pub enum SendLastPublished {
    /// Do not auto-send.
    Never,
    /// Send on subscription.
    OnSub,
    /// Send on subscription and on presence.
    OnSubAndPresence,
}

impl ToString for SendLastPublished {
    fn to_string(&self) -> String {
        match self {
            SendLastPublished::Never => "never",
            SendLastPublished::OnSub => "on_sub",
            SendLastPublished::OnSubAndPresence => "on_sub_and_presence",
        }
        .to_string()
    }
}

impl FromStr for SendLastPublished {
    type Err = InvalidOption;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        match s {
            "never" => Ok(SendLastPublished::Never),
            "on_sub" => Ok(SendLastPublished::OnSub),
            "on_sub_and_presence" => Ok(SendLastPublished::OnSubAndPresence),
            _ => Err(InvalidOption),
        }
    }
}