/
Confirmation.js
196 lines (190 loc) · 5.87 KB
/
Confirmation.js
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
import React, { useState, useEffect } from 'react';
import {
Text,
Button,
Grid,
Table,
Link,
Card,
Checkbox
} from '@makerdao/ui-components-core';
import useStore from '../../hooks/useStore';
import useMaker from '../../hooks/useMaker';
import LoadingToggle from '../LoadingToggle';
import { addToastWithTimeout } from '../Toast';
import { prettifyNumber } from '../../utils/ui';
export default ({
onNext,
onPrev,
setMigrationTxHash,
showErrorMessageAndAllowExiting
}) => {
const { maker, account } = useMaker();
const [hasReadTOS, setHasReadTOS] = useState(false);
const [daiApprovePending, setDaiApprovePending] = useState(false);
const [downgradeInitiated, setDowngradeInitiated] = useState(false);
const [proxyDetails, setProxyDetails] = useState({});
const [{ daiAmountToMigrate }, dispatch] = useStore();
const migrationContractAddress = maker
.service('smartContract')
.getContract('MIGRATION').address;
const giveProxyDaiAllowance = async () => {
setDaiApprovePending(true);
try {
await maker
.getToken('MDAI')
.approveUnlimited(migrationContractAddress);
setProxyDetails(proxyDetails => ({
...proxyDetails,
hasDaiAllowance: true
}));
} catch (err) {
const message = err.message ? err.message : err;
const errMsg = `unlock dai tx failed ${message}`;
console.error(errMsg);
addToastWithTimeout(errMsg, dispatch);
}
setDaiApprovePending(false);
};
const convertDai = async () => {
try {
setDowngradeInitiated(true);
const mig = await maker.service('migration').getMigration('dai-to-sai');
const migrationTxObject = mig.execute(daiAmountToMigrate);
maker.service('transactionManager').listen(migrationTxObject, {
pending: tx => {
setMigrationTxHash(tx.hash);
onNext();
},
error: () => showErrorMessageAndAllowExiting()
});
migrationTxObject.then(onNext);
} catch (err) {
const message = err.message ? err.message : err;
const errMsg = `migrate tx failed ${message}`;
console.error(errMsg);
addToastWithTimeout(errMsg, dispatch);
}
};
useEffect(() => {
(async () => {
if (maker && account) {
const connectedWalletAllowance = await maker
.getToken('MDAI')
.allowance(account.address, migrationContractAddress);
const hasDaiAllowance = connectedWalletAllowance.gte(
daiAmountToMigrate.toBigNumber().times(1.05)
);
setProxyDetails({ hasDaiAllowance });
}
})();
}, [account, maker, daiAmountToMigrate]);
const amount = prettifyNumber(daiAmountToMigrate.toNumber());
return (
<Grid maxWidth="600px" gridRowGap="m" px={['s', 0]} minWidth="38rem">
<Text.h2 textAlign="center" m="s">
Confirm Transaction
</Text.h2>
<Grid gridRowGap="s">
<Card>
<Grid
gridRowGap="s"
color="darkPurple"
px={{ s: 'm' }}
py={{ s: 'xs' }}
>
<Table p={0}>
<Table.tbody>
<Table.tr>
<Table.td>
<Text display={'block'}>Sending</Text>
<Text
t="heading"
display={'block'}
fontWeight="bold"
>{`${amount} Multi-Collateral Dai`}</Text>
</Table.td>
</Table.tr>
<Table.tr>
<Table.td>
<Text display={'block'}>Exchange Rate</Text>
<Text t="heading" display={'block'} fontWeight="bold">
1:1
</Text>
</Table.td>
</Table.tr>
<Table.tr>
<Table.td>
<Text display={'block'}>Receiving</Text>
<Text
t="heading"
display={'block'}
fontWeight="bold"
>{`${amount} Single-Collateral Sai`}</Text>
</Table.td>
</Table.tr>
</Table.tbody>
</Table>
</Grid>
</Card>
<Card>
<Grid px={'m'} py={'m'}>
<LoadingToggle
completeText={'DAI unlocked'}
loadingText={'Unlocking DAI'}
defaultText={'Unlock DAI to continue'}
tokenDisplayName={'DAI'}
isLoading={daiApprovePending}
isComplete={proxyDetails.hasDaiAllowance}
onToggle={giveProxyDaiAllowance}
disabled={proxyDetails.hasDaiAllowance}
data-testid="allowance-toggle"
/>
</Grid>
</Card>
<Card>
<Grid
alignItems="center"
gridTemplateColumns="auto 1fr"
px={'m'}
py={'m'}
>
<Checkbox
mr="s"
fontSize="l"
checked={hasReadTOS}
onChange={() => setHasReadTOS(!hasReadTOS)}
/>
<Text
t="caption"
color="steel"
onClick={() => setHasReadTOS(!hasReadTOS)}
>
I have read and accept the{' '}
<Link target="_blank" href="/terms">
Terms of Service
</Link>
.
</Text>
</Grid>
</Card>
</Grid>
<Grid
justifySelf="center"
justifyContent="center"
gridTemplateColumns="auto auto"
gridColumnGap="m"
>
<Button variant="secondary-outline" onClick={onPrev}>
Back
</Button>
<Button
disabled={!hasReadTOS || !proxyDetails.hasDaiAllowance || downgradeInitiated}
onClick={convertDai}
>
Continue
</Button>
</Grid>
</Grid>
);
};