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
162
163

use ex3_serde::bincode;
use ex3_timestamp::TimeInNs;
use ic_stable_structures::storable::Bound;
use ic_stable_structures::Storable;
use serde::{Deserialize, Serialize};

use crate::chain::Chain;
use crate::{AssetAmount, AssetId};

/// Withdrawal
#[derive(Debug, Clone, PartialEq, Eq, Deserialize, Serialize)]
pub struct Withdrawal {
    /// The signature chain
    ///
    /// Note: it used for verification
    pub sign_chain: Chain,

    /// Specify the blockchain
    pub chain: Chain,

    /// Specify the network
    pub network: u8,

    /// Withdrawal to address
    pub to: String,

    /// Withdrawal asset id
    pub asset_id: AssetId,

    /// Withdrawal amount
    /// Note: This is the amount that the user will receive
    pub amount: AssetAmount,

    /// Withdrawal fee
    pub fee: AssetAmount,
}

/// Force withdrawal
#[derive(Debug, Clone, Eq, PartialEq, Deserialize, Serialize)]
pub struct ForceWithdrawal {
    /// The signature chain
    ///
    /// Note: it used for verification
    pub sign_chain: Chain,

    /// Specify the blockchain
    pub chain: Chain,

    /// Specify the network
    pub network: u8,

    /// Withdrawal to address
    pub to: String,

    /// Withdrawal asset id
    pub asset_id: AssetId,

    /// Withdrawal amount
    /// Note: This is the amount that the user will receive
    pub amount: AssetAmount,

    /// Withdrawal fee
    pub fee: AssetAmount,

    /// Timestamp
    pub timestamp: TimeInNs,
}

impl Storable for Withdrawal {
    fn to_bytes(&self) -> std::borrow::Cow<[u8]> {
        bincode::serialize(&self).unwrap().into()
    }

    fn from_bytes(bytes: std::borrow::Cow<[u8]>) -> Self {
        bincode::deserialize(&bytes).unwrap()
    }

    const BOUND: Bound = Bound::Bounded {
        max_size: 289,
        is_fixed_size: false,
    };
}

impl Storable for ForceWithdrawal {
    fn to_bytes(&self) -> std::borrow::Cow<[u8]> {
        bincode::serialize(&self).unwrap().into()
    }

    fn from_bytes(bytes: std::borrow::Cow<[u8]>) -> Self {
        bincode::deserialize(&bytes).unwrap()
    }

    const BOUND: Bound = Bound::Bounded {
        max_size: 297,
        is_fixed_size: false,
    };
}
#[cfg(test)]
mod tests {
    use ex3_serde::{bincode, cbor};

    use super::*;

    #[test]
    fn test_serde() {
        let withdrawal = Withdrawal {
            sign_chain: Chain::Ethereum,
            chain: Chain::Ethereum,
            network: 1,
            to: "0x0000001312312321313213".to_string(),
            asset_id: AssetId::from(2000u32),
            amount: AssetAmount::from(10000u64),
            fee: AssetAmount::from(100u64),
        };

        // bincode
        let encoded = bincode::serialize(&withdrawal).unwrap();
        let decoded: Withdrawal = bincode::deserialize(&encoded).unwrap();
        assert_eq!(withdrawal, decoded);

        // cbor
        let encoded = cbor::serialize(&withdrawal).unwrap();
        let decoded: Withdrawal = cbor::deserialize(&encoded).unwrap();
        assert_eq!(withdrawal, decoded);
    }

    #[test]
    fn test_storable_for_withdrawal() {
        let withdrawal = Withdrawal {
            sign_chain: Chain::Ethereum,
            chain: Chain::Ethereum,
            network: 1,
            to: "0x3f349bBaFEc1551819B8be1EfEA2fC46cA749aA1".to_string(),
            asset_id: AssetId::from(u128::MAX),
            amount: AssetAmount::from(u128::MAX),
            fee: AssetAmount::from(u128::MAX),
        };

        let bytes = withdrawal.to_bytes();
        assert!(bytes.len() <= 289, "bytes.len() = {}", bytes.len());
        let decoded = Withdrawal::from_bytes(bytes);
        assert_eq!(withdrawal, decoded);
    }

    #[test]
    fn test_storable_for_force_withdrawal() {
        let force_withdrawal = ForceWithdrawal {
            sign_chain: Chain::Ethereum,
            chain: Chain::Ethereum,
            network: 1,
            to: "0x3f349bBaFEc1551819B8be1EfEA2fC46cA749aA1".to_string(),
            asset_id: AssetId::from(u128::MAX),
            amount: AssetAmount::from(u128::MAX),
            fee: AssetAmount::from(u128::MAX),
            timestamp: TimeInNs(u64::MAX),
        };

        let bytes = force_withdrawal.to_bytes();
        assert!(bytes.len() <= 297, "bytes.len() = {}", bytes.len());
        let decoded = ForceWithdrawal::from_bytes(bytes);
        assert_eq!(force_withdrawal, decoded);
    }
}