/
BitcoinCashCryptoAccount.swift
226 lines (203 loc) · 7.87 KB
/
BitcoinCashCryptoAccount.swift
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
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
// Copyright © Blockchain Luxembourg S.A. All rights reserved.
import BitcoinChainKit
import Combine
import DIKit
import Localization
import MoneyKit
import PlatformKit
import RxSwift
import ToolKit
import WalletPayloadKit
final class BitcoinCashCryptoAccount: BitcoinChainCryptoAccount {
let coinType: BitcoinChainCoin = .bitcoinCash
private(set) lazy var identifier: AnyHashable = "BitcoinCashCryptoAccount.\(xPub.address).\(xPub.derivationType)"
let label: String
let asset: CryptoCurrency = .bitcoinCash
let isDefault: Bool
let hdAccountIndex: Int
func createTransactionEngine() -> Any {
BitcoinOnChainTransactionEngineFactory<BitcoinCashToken>()
}
var pendingBalance: AnyPublisher<MoneyValue, Error> {
.just(.zero(currency: .bitcoinCash))
}
var balance: AnyPublisher<MoneyValue, Error> {
balanceService
.balance(for: xPub)
.map(\.moneyValue)
.eraseToAnyPublisher()
}
var actionableBalance: AnyPublisher<MoneyValue, Error> {
balance
}
var receiveAddress: AnyPublisher<ReceiveAddress, Error> {
nativeWalletEnabled()
.flatMap { [receiveAddressProvider, bridge, hdAccountIndex, xPub] isEnabled
-> AnyPublisher<String, Error> in
guard isEnabled else {
return bridge
.receiveAddress(forXPub: xPub.address)
.asPublisher()
.eraseToAnyPublisher()
}
return receiveAddressProvider
.receiveAddressProvider(UInt32(hdAccountIndex))
.map { $0.replacingOccurrences(of: "bitcoincash:", with: "") }
.eraseError()
.eraseToAnyPublisher()
}
.map { [label, onTxCompleted] address -> ReceiveAddress in
BitcoinChainReceiveAddress<BitcoinCashToken>(
address: address,
label: label,
onTxCompleted: onTxCompleted
)
}
.eraseToAnyPublisher()
}
var firstReceiveAddress: AnyPublisher<ReceiveAddress, Error> {
nativeWalletEnabled()
.flatMap { [receiveAddressProvider, bridge, hdAccountIndex, xPub] isEnabled
-> AnyPublisher<String, Error> in
guard isEnabled else {
return bridge
.firstReceiveAddress(forXPub: xPub.address)
.asPublisher()
.eraseToAnyPublisher()
}
return receiveAddressProvider
.firstReceiveAddressProvider(UInt32(hdAccountIndex))
.map { $0.replacingOccurrences(of: "bitcoincash:", with: "") }
.eraseError()
.eraseToAnyPublisher()
}
.map { [label, onTxCompleted] address -> ReceiveAddress in
BitcoinChainReceiveAddress<BitcoinCashToken>(
address: address,
label: label,
onTxCompleted: onTxCompleted
)
}
.eraseToAnyPublisher()
}
var activity: AnyPublisher<[ActivityItemEvent], Error> {
nonCustodialActivity.zip(swapActivity)
.map { nonCustodialActivity, swapActivity in
Self.reconcile(swapEvents: swapActivity, noncustodial: nonCustodialActivity)
}
.eraseError()
.eraseToAnyPublisher()
}
private var isInterestTransferAvailable: AnyPublisher<Bool, Never> {
guard asset.supports(product: .interestBalance) else {
return .just(false)
}
return isInterestWithdrawAndDepositEnabled
.zip(canPerformInterestTransfer)
.map { isEnabled, canPerform in
isEnabled && canPerform
}
.replaceError(with: false)
.eraseToAnyPublisher()
}
private var nonCustodialActivity: AnyPublisher<[TransactionalActivityItemEvent], Never> {
transactionsService
.transactions(publicKeys: [xPub])
.map { response in
response
.map(\.activityItemEvent)
}
.replaceError(with: [])
.eraseToAnyPublisher()
}
private var swapActivity: AnyPublisher<[SwapActivityItemEvent], Never> {
swapTransactionsService
.fetchActivity(cryptoCurrency: asset, directions: custodialDirections)
.replaceError(with: [])
.eraseToAnyPublisher()
}
private var isInterestWithdrawAndDepositEnabled: AnyPublisher<Bool, Never> {
featureFlagsService
.isEnabled(.interestWithdrawAndDeposit)
.replaceError(with: false)
.eraseToAnyPublisher()
}
let xPub: XPub
private let featureFlagsService: FeatureFlagsServiceAPI
private let balanceService: BalanceServiceAPI
private let priceService: PriceServiceAPI
private let bridge: BitcoinCashWalletBridgeAPI
private let transactionsService: BitcoinCashHistoricalTransactionServiceAPI
private let swapTransactionsService: SwapActivityServiceAPI
private let nativeWalletEnabled: () -> AnyPublisher<Bool, Never>
private let receiveAddressProvider: BitcoinChainReceiveAddressProviderAPI
init(
xPub: XPub,
label: String?,
isDefault: Bool,
hdAccountIndex: Int,
priceService: PriceServiceAPI = resolve(),
transactionsService: BitcoinCashHistoricalTransactionServiceAPI = resolve(),
swapTransactionsService: SwapActivityServiceAPI = resolve(),
balanceService: BalanceServiceAPI = resolve(tag: BitcoinChainCoin.bitcoinCash),
bridge: BitcoinCashWalletBridgeAPI = resolve(),
featureFlagsService: FeatureFlagsServiceAPI = resolve(),
nativeWalletEnabled: @escaping () -> AnyPublisher<Bool, Never> = { nativeWalletFlagEnabled() },
receiveAddressProvider: BitcoinChainReceiveAddressProviderAPI = resolve(
tag: BitcoinChainKit.BitcoinChainCoin.bitcoinCash
)
) {
self.xPub = xPub
self.label = label ?? CryptoCurrency.bitcoinCash.defaultWalletName
self.isDefault = isDefault
self.hdAccountIndex = hdAccountIndex
self.priceService = priceService
self.balanceService = balanceService
self.transactionsService = transactionsService
self.swapTransactionsService = swapTransactionsService
self.bridge = bridge
self.featureFlagsService = featureFlagsService
self.nativeWalletEnabled = nativeWalletEnabled
self.receiveAddressProvider = receiveAddressProvider
}
func can(perform action: AssetAction) -> AnyPublisher<Bool, Error> {
switch action {
case .receive,
.send,
.buy,
.linkToDebitCard,
.viewActivity:
return .just(true)
case .deposit,
.sign,
.withdraw,
.interestWithdraw:
return .just(false)
case .interestTransfer:
return isInterestTransferAvailable
.flatMap { [isFunded] isEnabled in
isEnabled ? isFunded : .just(false)
}
.eraseToAnyPublisher()
case .sell, .swap:
return hasPositiveDisplayableBalance
}
}
func balancePair(
fiatCurrency: FiatCurrency,
at time: PriceTime
) -> AnyPublisher<MoneyValuePair, Error> {
balancePair(
priceService: priceService,
fiatCurrency: fiatCurrency,
at: time
)
}
func updateLabel(_ newLabel: String) -> Completable {
bridge.update(accountIndex: hdAccountIndex, label: newLabel)
}
func invalidateAccountBalance() {
balanceService
.invalidateBalanceForWallet(xPub)
}
}