voynich 0.1.1

Library for creating anonymous, end-to-end encrypted and authenticated chat applications
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

use chrono::{serde::ts_seconds, DateTime, SubsecRound, Utc};
use circular_queue::CircularQueue;
use serde::{Deserialize, Serialize};
use tor_client_lib::TorServiceId;

#[derive(Clone, Debug, Eq, PartialEq, Deserialize, Serialize)]
pub struct ChatMessage {
    #[serde(with = "ts_seconds")]
    pub date: DateTime<Utc>,
    pub sender: TorServiceId,
    pub recipient: TorServiceId,
    pub message: String,
}

impl ChatMessage {
    pub fn new(sender: &TorServiceId, recipient: &TorServiceId, message: String) -> ChatMessage {
        ChatMessage {
            // Current DateTime rounded to second
            date: Utc::now().round_subsecs(0),
            sender: sender.clone(),
            recipient: recipient.clone(),
            message,
        }
    }
}

#[derive(Debug, Clone)]
pub struct Chat {
    id: TorServiceId,
    messages: CircularQueue<ChatMessage>,
}

impl Chat {
    pub fn new(id: &TorServiceId) -> Self {
        Self {
            id: id.clone(),
            messages: CircularQueue::with_capacity(200), // TODO: Configure this
        }
    }

    pub fn add_message(&mut self, message: ChatMessage) {
        self.messages.push(message);
    }

    pub fn id(&self) -> String {
        self.id.as_str().to_string()
    }

    pub fn iter(&self) -> Box<dyn Iterator<Item = &ChatMessage> + '_> {
        Box::new(self.messages.asc_iter())
    }
}

#[derive(Debug, Default, Clone)]
pub struct ChatList {
    list: Vec<TorServiceId>,
    current_index: Option<usize>,
}

impl ChatList {
    pub fn names(&self) -> &Vec<TorServiceId> {
        &self.list
    }

    pub fn add(&mut self, id: &TorServiceId) {
        self.list.push(id.clone());
        self.current_index = Some(self.list.len() - 1);
    }

    pub fn remove(&mut self, id: &TorServiceId) {
        if let Some(index) = self.list.iter().position(|t| t == id) {
            self.list.swap_remove(index);
            if self.list.is_empty() {
                self.current_index = None;
            } else {
                match self.current_index {
                    Some(current) => {
                        if current >= index {
                            if current == 0 {
                                self.current_index = None;
                            } else {
                                self.current_index = Some(current - 1);
                            }
                        }
                    }
                    None => {
                        panic!("Current subscription index is None when it shouldn't be");
                    }
                }
            }
        }
    }

    pub fn current(&self) -> Option<&TorServiceId> {
        match self.current_index {
            Some(index) => self.list.get(index),
            None => None,
        }
    }

    pub fn current_index(&self) -> Option<usize> {
        self.current_index
    }

    pub fn next_chat(&mut self) -> Option<&TorServiceId> {
        match self.current_index {
            Some(index) => {
                if index == self.list.len() - 1 {
                    self.current_index = Some(0);
                } else {
                    self.current_index = Some(index + 1);
                }
                self.current()
            }
            None => None,
        }
    }

    pub fn prev_chat(&mut self) -> Option<&TorServiceId> {
        match self.current_index {
            Some(index) => {
                if index == 0 {
                    self.current_index = Some(self.list.len() - 1);
                } else {
                    self.current_index = Some(index - 1);
                }
                self.current()
            }
            None => None,
        }
    }
}