mumlib 0.3.0

Exposed parts of mum.
Documentation 
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
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155

use serde::export::Formatter;
use serde::{Deserialize, Serialize};
use std::fmt::Display;

#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Server {
    pub channels: Channel,
    pub welcome_text: Option<String>,
    pub username: String,
    pub host: String,
}

#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct Channel {
    pub description: Option<String>,
    pub links: Vec<Vec<usize>>, //to represent several walks through the tree to find channels its linked to
    pub max_users: u32,
    pub name: String,
    pub children: Vec<Channel>,
    pub users: Vec<User>,
}

impl Channel {
    pub fn iter(&self) -> Iter<'_> {
        Iter {
            me: Some(&self),
            channel: if self.children.len() > 0 {
                Some(0)
            } else {
                None
            },
            channels: self.children.iter().map(|e| e.iter()).collect(),
        }
    }

    pub fn users_iter(&self) -> UsersIter<'_> {
        UsersIter {
            channels: self.children.iter().map(|e| e.users_iter()).collect(),
            channel: if self.children.len() > 0 {
                Some(0)
            } else {
                None
            },
            user: if self.users.len() > 0 { Some(0) } else { None },
            users: &self.users,
        }
    }
}

pub struct Iter<'a> {
    me: Option<&'a Channel>,
    channel: Option<usize>,
    channels: Vec<Iter<'a>>,
}

impl<'a> Iterator for Iter<'a> {
    type Item = &'a Channel;

    fn next(&mut self) -> Option<Self::Item> {
        if self.me.is_some() {
            self.me.take()
        } else if let Some(mut c) = self.channel {
            let mut n = self.channels[c].next();
            while n.is_none() {
                c += 1;
                if c >= self.channels.len() {
                    self.channel = None;
                    return None;
                }
                n = self.channels[c].next();
            }
            self.channel = Some(c);
            n
        } else {
            None
        }
    }
}

pub struct UsersIter<'a> {
    channel: Option<usize>,
    channels: Vec<UsersIter<'a>>,
    user: Option<usize>,
    users: &'a [User],
}

impl<'a> Iterator for UsersIter<'a> {
    type Item = &'a User;

    fn next(&mut self) -> Option<Self::Item> {
        if let Some(u) = self.user {
            let ret = Some(&self.users[u]);
            if u + 1 < self.users.len() {
                self.user = Some(u + 1);
            } else {
                self.user = None;
            }
            ret
        } else if let Some(mut c) = self.channel {
            let mut n = self.channels[c].next();
            while n.is_none() {
                c += 1;
                if c >= self.channels.len() {
                    self.channel = None;
                    return None;
                }
                n = self.channels[c].next();
            }
            self.channel = Some(c);
            n
        } else {
            None
        }
    }
}

#[derive(Clone, Debug, Deserialize, Serialize)]
pub struct User {
    pub comment: Option<String>, //TODO not option, empty string instead
    pub hash: Option<String>,
    pub name: String,
    pub priority_speaker: bool,
    pub recording: bool,

    pub suppress: bool,  // by me
    pub self_mute: bool, // by self
    pub self_deaf: bool, // by self
    pub mute: bool,      // by admin
    pub deaf: bool,      // by admin
}

macro_rules! true_to_str {
    ($condition:expr, $res:expr) => {
        if $condition {
            $res
        } else {
            ""
        }
    };
}

impl Display for User {
    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
        write!(
            f,
            "{} {}{}{}{}{}",
            self.name,
            true_to_str!(self.suppress, "s"),
            true_to_str!(self.self_mute, "M"),
            true_to_str!(self.self_deaf, "D"),
            true_to_str!(self.mute, "m"),
            true_to_str!(self.deaf, "d")
        )
    }
}