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

use bitbuffer::{BitRead, BitWrite, BitWriteSized, BitWriteStream, LittleEndian};
use serde::{Deserialize, Serialize};

use crate::{ReadResult, Stream};

#[cfg_attr(feature = "schema", derive(schemars::JsonSchema))]
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
pub struct VoiceInitMessage {
    codec: String,
    quality: u8,
    sampling_rate: u16,
}

impl BitRead<'_, LittleEndian> for VoiceInitMessage {
    fn read(stream: &mut Stream) -> ReadResult<Self> {
        let codec = stream.read()?;
        let quality = stream.read()?;

        let sampling_rate = if quality == 255 {
            // v2 packets have variable rate
            stream.read()?
        } else if codec == "vaudio_celt" {
            // legacy sample rate for celt
            22050
        } else {
            // legacy sample rate for non-celt
            11025
        };

        Ok(VoiceInitMessage {
            codec,
            quality,
            sampling_rate,
        })
    }
}

impl BitWrite<LittleEndian> for VoiceInitMessage {
    fn write(&self, stream: &mut BitWriteStream<LittleEndian>) -> ReadResult<()> {
        self.codec.write(stream)?;
        self.quality.write(stream)?;

        if self.quality == 255 {
            self.sampling_rate.write(stream)?;
        }

        Ok(())
    }
}

#[test]
fn test_voice_init_roundtrip() {
    crate::test_roundtrip_write(VoiceInitMessage {
        codec: "foo".into(),
        quality: 0,
        sampling_rate: 11025,
    });
    crate::test_roundtrip_write(VoiceInitMessage {
        codec: "foo".into(),
        quality: 255,
        sampling_rate: 12,
    });
}

#[cfg_attr(feature = "schema", derive(schemars::JsonSchema))]
#[derive(BitRead, BitWrite, Debug, Clone, PartialEq, Serialize, Deserialize)]
#[endianness = "LittleEndian"]
#[serde(bound(deserialize = "'a: 'static"))]
pub struct VoiceDataMessage<'a> {
    client: u8,
    proximity: u8,
    length: u16,
    #[size = "length"]
    data: Stream<'a>,
}

#[cfg_attr(feature = "schema", derive(schemars::JsonSchema))]
#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
#[serde(bound(deserialize = "'a: 'static"))]
pub struct ParseSoundsMessage<'a> {
    pub reliable: bool,
    pub num: u8,
    pub length: u16,
    pub data: Stream<'a>,
}

impl<'a> BitRead<'a, LittleEndian> for ParseSoundsMessage<'a> {
    fn read(stream: &mut Stream<'a>) -> ReadResult<Self> {
        let reliable = stream.read()?;
        let num = if reliable { 1u8 } else { stream.read()? };
        let length = if reliable {
            stream.read_sized::<u16>(8)?
        } else {
            stream.read()?
        };
        let data = stream.read_sized(length as usize)?;

        Ok(ParseSoundsMessage {
            reliable,
            num,
            length,
            data,
        })
    }
}

impl<'a> BitWrite<LittleEndian> for ParseSoundsMessage<'a> {
    fn write(&self, stream: &mut BitWriteStream<LittleEndian>) -> ReadResult<()> {
        self.reliable.write(stream)?;
        if !self.reliable {
            self.num.write(stream)?;
        }

        if self.reliable {
            self.length.write_sized(stream, 8)?;
        } else {
            self.length.write(stream)?;
        }

        self.data.write(stream)?;

        Ok(())
    }
}

#[test]
fn test_parse_sounds_roundtrip() {
    use bitbuffer::BitReadBuffer;
    let inner = BitReadBuffer::new(&[1, 2, 3, 4, 5, 6], LittleEndian);

    crate::test_roundtrip_write(ParseSoundsMessage {
        reliable: false,
        num: 0,
        length: inner.bit_len() as u16,
        data: inner.clone().into(),
    });
    crate::test_roundtrip_write(ParseSoundsMessage {
        reliable: true,
        num: 1,
        length: inner.bit_len() as u16,
        data: inner.into(),
    });
}