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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
use std::convert::AsRef;
use bitcoin::blockdata::transaction::{OutPoint, Transaction, TxOut};
use bitcoin::{hash_types::Txid, util::psbt};
use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize, Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum KeychainKind {
External = 0,
Internal = 1,
}
impl KeychainKind {
pub fn as_byte(&self) -> u8 {
match self {
KeychainKind::External => b'e',
KeychainKind::Internal => b'i',
}
}
}
impl AsRef<[u8]> for KeychainKind {
fn as_ref(&self) -> &[u8] {
match self {
KeychainKind::External => b"e",
KeychainKind::Internal => b"i",
}
}
}
#[derive(Debug, Copy, Clone, PartialEq, PartialOrd)]
pub struct FeeRate(f32);
impl FeeRate {
pub fn from_btc_per_kvb(btc_per_kvb: f32) -> Self {
FeeRate(btc_per_kvb * 1e5)
}
pub const fn from_sat_per_vb(sat_per_vb: f32) -> Self {
FeeRate(sat_per_vb)
}
pub const fn default_min_relay_fee() -> Self {
FeeRate(1.0)
}
pub fn as_sat_vb(&self) -> f32 {
self.0
}
}
impl std::default::Default for FeeRate {
fn default() -> Self {
FeeRate::default_min_relay_fee()
}
}
#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq)]
pub struct LocalUtxo {
pub outpoint: OutPoint,
pub txout: TxOut,
pub keychain: KeychainKind,
}
#[derive(Debug, Clone, PartialEq)]
pub struct WeightedUtxo {
pub satisfaction_weight: usize,
pub utxo: Utxo,
}
#[derive(Debug, Clone, PartialEq)]
pub enum Utxo {
Local(LocalUtxo),
Foreign {
outpoint: OutPoint,
psbt_input: Box<psbt::Input>,
},
}
impl Utxo {
pub fn outpoint(&self) -> OutPoint {
match &self {
Utxo::Local(local) => local.outpoint,
Utxo::Foreign { outpoint, .. } => *outpoint,
}
}
pub fn txout(&self) -> &TxOut {
match &self {
Utxo::Local(local) => &local.txout,
Utxo::Foreign {
outpoint,
psbt_input,
} => {
if let Some(prev_tx) = &psbt_input.non_witness_utxo {
return &prev_tx.output[outpoint.vout as usize];
}
if let Some(txout) = &psbt_input.witness_utxo {
return &txout;
}
unreachable!("Foreign UTXOs will always have one of these set")
}
}
}
}
#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq, Default)]
pub struct TransactionDetails {
pub transaction: Option<Transaction>,
pub txid: Txid,
pub timestamp: u64,
pub received: u64,
pub sent: u64,
pub fees: u64,
pub height: Option<u32>,
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn can_store_feerate_in_const() {
const _MY_RATE: FeeRate = FeeRate::from_sat_per_vb(10.0);
const _MIN_RELAY: FeeRate = FeeRate::default_min_relay_fee();
}
}