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

use crate::utils::Either;

pub struct Message {
    pub source: String,
    pub target: Vec<Target>,
    pub command: Command,
    pub params: Vec<String>,
    pub valid: bool,
    pub error: Option<String>,
}

impl Message {
    pub fn parse(raw_input: Vec<u8>, source_client: Option<String>) -> Self {
        if raw_input.len() < 1 {
            return Message {
                source: "".to_string(),
                target: Vec::new(),
                command: Command::NAMES,
                params: Vec::new(),
                valid: false,
                error: Some("No data".to_string()),
            };
        }
        let split_message: Vec<Vec<u8>> = raw_input.into_iter().fold(Vec::new(), |mut acc, x| {
            if x == 32 || acc.is_empty() {
                acc.push(Vec::new());
            }
            acc.last_mut().unwrap().push(x);
            acc
        });
        let source = source_client.unwrap_or({
            match Message::parse_source(split_message[0].clone()) {
                Either::Left(x) => x,
                Either::Right(y) => return y,
            }
        });

        Message {
            source: source,
            target: Vec::new(),
            command: Command::NAMES,
            valid: true,
            params: Vec::new(),
            error: None,
        }
    }

    fn parse_source(source_input: Vec<u8>) -> Either<String, Message> {
        if source_input.len() < 2 {
            return Either::Right(Message {
                source: "".to_string(),
                target: Vec::new(),
                command: Command::NAMES,
                params: Vec::new(),
                valid: false,
                error: Some("No Source value:= empty data".to_string()),
            });
        }

        if source_input[0] == 58 {
            match String::from_utf8(source_input.clone().split_off(1)) {
                Ok(x) => return Either::Left(x),
                Err(_) => {
                    return Either::Right(Message {
                        source: "".to_string(),
                        target: Vec::new(),
                        command: Command::NAMES,
                        params: Vec::new(),
                        valid: false,
                        error: Some("Failed to parse source".to_string()),
                    });
                }
            }
        } else {
            return Either::Right(Message {
                source: "".to_string(),
                target: Vec::new(),
                command: Command::NAMES,
                params: Vec::new(),
                valid: false,
                error: Some("Invalid source format:= requires ':'".to_string()),
            });
        }
    }
}

struct Target {
    id: String,
    target_type: TargetType,
}

enum TargetType {
    CLIENT,
    SERVER,
    CHANNEL,
}

enum Command {
    NAMES,
    PRIVMSG,
    NICK,
}

#[test]
fn test_valid_source() {
    let message = ":TestClient".as_bytes().to_vec();
    let source = Message::parse_source(message);
    let source_string = match source {
        Either::Left(x) => x,
        Either::Right(_) => "None".to_string(),
    };
    assert_eq!(source_string, "TestClient");
}
#[test]
fn test_invalid_source() {
    let message = ":".as_bytes().to_vec();
    let source = Message::parse_source(message);
    let source_string = match source {
        Either::Left(x) => x,
        Either::Right(y) => y.error.unwrap(),
    };
    assert_eq!(source_string, "No Source value:= empty data");
}
#[test]
fn test_empty_source() {
    let message = Vec::new();
    let source = Message::parse_source(message);
    let source_string = match source {
        Either::Left(x) => x,
        Either::Right(y) => y.error.unwrap(),
    };
    assert_eq!(source_string, "No Source value:= empty data");
}

#[test]
fn test_format_source() {
    let message = "TestClient".as_bytes().to_vec();
    let source = Message::parse_source(message);
    let source_string = match source {
        Either::Left(x) => x,
        Either::Right(y) => y.error.unwrap(),
    };
    assert_eq!(source_string, "Invalid source format:= requires ':'");
}