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
156
157
158
159
160
161

use ion_rs;

use ion_rs::IonReader;
use ion_rs::IonType;
use ion_rs::IonWriter;

use ion_rs::ReaderBuilder;

use ion_rs::StreamItem;
use net_core_api::core::api::API;
use net_core_api::core::encoder_api::Encoder;
use net_core_api::core::decoder_api::Decoder;
use net_core_api::core::typed_api::Typed;

const DATA_TYPE: &str = "update-network-request";

#[derive(Debug, PartialEq, Eq)]
pub struct UpdatePacketRequestDTO {
    id: String,
    network_id: Option<String>,
}
impl API for UpdatePacketRequestDTO { }

impl UpdatePacketRequestDTO {
    pub fn new(
        id: &str,
        network_id: Option<&str>,
    ) -> Self {
        UpdatePacketRequestDTO {
            id: id.into(),
            network_id: network_id.map(str::to_string),
        }
    }
    
    pub fn get_id(&self) -> &str {
        &self.id
    }

    pub fn get_network_id(&self) -> Option<&str> {
        self.network_id.as_deref()
    }
}

impl Encoder for UpdatePacketRequestDTO {
    fn encode(&self) -> Vec<u8> {
        let buffer: Vec<u8> = Vec::new();

        let binary_writer_builder = ion_rs::BinaryWriterBuilder::new();
        let mut writer = binary_writer_builder.build(buffer.clone()).unwrap();
        
        writer.step_in(IonType::Struct).expect("Error while creating an ion struct");

        writer.set_field_name("id");
        writer.write_string(&self.id).unwrap();

        writer.set_field_name("network_id");
        match self.network_id.as_deref() {
            Some(network_id) => writer.write_string(network_id).unwrap(),
            None => writer.write_null(IonType::String).unwrap(),
        }

        writer.step_out().unwrap();
        writer.flush().unwrap();

        writer.output().as_slice().into()
    }
}

impl Decoder for UpdatePacketRequestDTO {
    fn decode(data: &[u8]) -> Self {
        let mut binary_user_reader = ReaderBuilder::new().build(data).unwrap();
        binary_user_reader.next().unwrap();
        binary_user_reader.step_in().unwrap();

        binary_user_reader.next().unwrap();
        let binding = binary_user_reader.read_string().unwrap();
        let id = binding.text();
        
        binary_user_reader.next().unwrap();
        let network_id = match binary_user_reader.current() {
            StreamItem::Value(_) => Some(binary_user_reader.read_string().unwrap().text().to_string()),
            _ => None,
        };

        UpdatePacketRequestDTO::new(
            id,
            network_id.as_deref(),
        )
    }
}

impl Typed for UpdatePacketRequestDTO {
    fn get_data_type() -> &'static str {
        DATA_TYPE
    }

    fn get_type(&self) -> &str {
        Self::get_data_type()
    }
}

#[cfg(test)]
mod tests {
    use ion_rs::IonType;
    use ion_rs::IonReader;
    use ion_rs::ReaderBuilder;
    use ion_rs::StreamItem;

    use net_core_api::core::encoder_api::Encoder;
    use net_core_api::core::decoder_api::Decoder;

    use crate::api::updaters::update_packet::update_packet_request::UpdatePacketRequestDTO;

    #[test]
    fn reader_correctly_read_encoded_update_pcap_request() {
        const ID: &str = "1";
        const NETWORK_ID: Option<&str> = Some("2");
        let update_pcap_request = UpdatePacketRequestDTO::new(
            ID,
            NETWORK_ID
        );
        let mut binary_user_reader = ReaderBuilder::new().build(update_pcap_request.encode()).unwrap();

        assert_eq!(StreamItem::Value(IonType::Struct), binary_user_reader.next().unwrap());
        binary_user_reader.step_in().unwrap();

        assert_eq!(StreamItem::Value(IonType::String), binary_user_reader.next().unwrap());
        assert_eq!("id", binary_user_reader.field_name().unwrap());
        assert_eq!(ID, binary_user_reader.read_string().unwrap().text());
        
        assert_eq!(StreamItem::Value(IonType::String), binary_user_reader.next().unwrap());
        assert_eq!("network_id", binary_user_reader.field_name().unwrap());
        assert_eq!(NETWORK_ID.unwrap(), binary_user_reader.read_string().unwrap().text());

        binary_user_reader.step_out().unwrap();
    }

    #[test]
    fn endec_update_pcap_request_some_network() {
        const ID: &str = "1";
        const NETWORK_ID: Option<&str> = Some("2");
        let update_pcap_request = UpdatePacketRequestDTO::new(
            ID,
            NETWORK_ID
        );
        
        assert_eq!(update_pcap_request, UpdatePacketRequestDTO::decode(&update_pcap_request.encode()));
    }

    #[test]
    fn endec_update_pcap_request_none_network() {
        const ID: &str = "1";
        const NETWORK_ID: Option<&str> = Some("2");
        let update_pcap_request = UpdatePacketRequestDTO::new(
            ID,
            NETWORK_ID
        );
        
        assert_eq!(update_pcap_request, UpdatePacketRequestDTO::decode(&update_pcap_request.encode()));
    }
}