tx · 9aoRaPpF9qKuMtm2i4xrpGnFF5uWWPvAQLttZ4awfqdq

3Mw2biLQi5ygMk7zexboNGrnMYuaSfrziY8:  -0.01000000 Waves

2022.03.14 21:45 [1964010] smart account 3Mw2biLQi5ygMk7zexboNGrnMYuaSfrziY8 > SELF 0.00000000 Waves

{
    "type": 13,
    "id": "9aoRaPpF9qKuMtm2i4xrpGnFF5uWWPvAQLttZ4awfqdq",
    "fee": 1000000,
    "feeAssetId": null,
    "timestamp": 1647283522276,
    "version": 2,
    "chainId": 84,
    "sender": "3Mw2biLQi5ygMk7zexboNGrnMYuaSfrziY8",
    "senderPublicKey": "7KdKmjfPuTXGRNZv4VEz9mZiC2qb9JPzuji5z6jszZyo",
    "proofs": [
        "4NzARdfuRyPxhiKtxfoAsUB5BpFj4oAtiNcCHaCNw747Pux7SBcmZLjEVYNdUH2UJsSiLTecRCGH1jwqXXyxVsHC"
    ],
    "script": "base64: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",
    "height": 1964010,
    "applicationStatus": "succeeded",
    "spentComplexity": 0
}

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Diff: 
Old
New
Differences
1
1
 
{-# STDLIB_VERSION 5 #-}
2
2
 
{-# SCRIPT_TYPE ACCOUNT #-}
3
3
 
{-# CONTENT_TYPE DAPP #-}
4
-
let exchangeRate = 5
4
+
let exchangeRate = 10
5
5
 
6
6
 
let exchangeRateDiffPercent = 20
7
7
 
15
15
 
16
16
 
let loanFeePercent = (9 / 100)
17
17
 
18
-
let exchangerUSDNtoWavesAddress = Address(base58'3Mw2biLQi5ygMk7zexboNGrnMYuaSfrziY8')
18
+
func exchangeWAVEStoUSDN (amount,assetId,caller) = if ((assetId == WAVES))
19
+
    then [ScriptTransfer(Address(caller), (amount / USDNtoWAVESrate), USDN)]
20
+
    else throw("Unexpected Token")
19
21
 
20
-
let exchangerWavesToUSDNAddress = Address(base58'3Mw2biLQi5ygMk7zexboNGrnMYuaSfrziY8')
21
22
 
22
-
let loanerAddress = Address(base58'3Mw2biLQi5ygMk7zexboNGrnMYuaSfrziY8')
23
+
func exchangeUSDNtoWAVES (amount,assetId,caller) = if ((assetId == USDN))
24
+
    then [ScriptTransfer(Address(caller), (amount * USDNtoWAVESRate), WAVES)]
25
+
    else throw("Unexpected Token")
23
26
 
24
-
@Callable(i)
25
-
func trade (borrower) = {
26
-
    let loanAmount = if ((i.payments[0].assetId == USDN))
27
-
        then i.payments[0].amount
27
+
28
+
func trade (borrower,amount,assetId) = {
29
+
    let loanAmount = if ((assetId == USDN))
30
+
        then amount
28
31
 
        else throw("Unexpected payment asset")
29
32
 
    let startBalanceWAVES = assetBalance(this, WAVES)
30
33
 
    if ((startBalanceWAVES == startBalanceWAVES))
31
34
 
        then {
32
-
            let r1 = invoke(exchangerUSDNtoWavesAddress, "exchangeUSDNtoWAVES", nil, [AttachedPayment(USDN, loanAmount)])
35
+
            let r1 = exchangeUSDNtoWAVES(amount, assetId, borrower)
33
36
 
            if ((r1 == r1))
34
37
 
                then {
35
38
 
                    let diffWAVES = (assetBalance(this, WAVES) - startBalanceWAVES)
36
39
 
                    if ((diffWAVES == diffWAVES))
37
40
 
                        then {
38
-
                            let r2 = invoke(exchangerWavesToUSDNAddress, "exchangeWAVEStoUSDN", nil, [AttachedPayment(WAVES, diffWAVES)])
41
+
                            let r2 = exchangeWAVEStoUSDN(amount, assetId, borrower)
39
42
 
                            if ((r2 == r2))
40
43
 
                                then {
41
44
 
                                    let debt = fraction(loanAmount, (100 + loanFeePercent), 100)
42
45
 
                                    let profit = (assetBalance(this, USDN) - debt)
43
-
[ScriptTransfer(Address(borrower), profit, USDN), ScriptTransfer(loanerAddress, debt, USDN)]
46
+
[ScriptTransfer(Address(borrower), profit, USDN), ScriptTransfer(this, debt, USDN)]
44
47
 
                                    }
45
48
 
                                else throw("Strict value is not equal to itself.")
46
49
 
                            }
52
55
 
    }
53
56
 
54
57
 
55
-
56
58
 
@Callable(i)
57
-
func exchangeWAVEStoUSDN () = if ((i.payments[0].assetId == WAVES))
58
-
    then [ScriptTransfer(i.caller, (i.payments[0].amount / USDNtoWAVESrate), USDN)]
59
-
    else throw("Unexpected Token")
60
-
61
-
62
-
63
-
@Callable(i)
64
-
func exchangeUSDNtoWAVES () = if ((i.payments[0].assetId == USDN))
65
-
    then [ScriptTransfer(i.caller, (i.payments[0].amount * USDNtoWAVESRate), WAVES)]
66
-
    else throw("Unexpected Token")
67
-
68
-
69
-
70
-
@Callable(i)
71
-
func flashloan (amount,callback,borrower) = {
59
+
func flashloan (amount,callback,borrower,assetId) = {
72
60
 
    let startBalance = assetBalance(this, USDN)
73
61
 
    if ((startBalance == startBalance))
74
62
 
        then {
75
-
            let r = invoke(Address(fromBase58String(borrower)), callback, [i.caller.bytes], [AttachedPayment(USDN, amount)])
76
-
            if ((r == r))
63
+
            let test = trade(borrower, amount, assetId)
64
+
            if ((test == test))
77
65
 
                then {
78
66
 
                    let balanceDiff = (assetBalance(this, USDN) - startBalance)
79
67
 
                    let profit = fraction(amount, loanFeePercent, 100)
Full: 
Old
New
Differences
1
1
 
{-# STDLIB_VERSION 5 #-}
2
2
 
{-# SCRIPT_TYPE ACCOUNT #-}
3
3
 
{-# CONTENT_TYPE DAPP #-}
4
-
let exchangeRate = 5
4
+
let exchangeRate = 10
5
5
 
6
6
 
let exchangeRateDiffPercent = 20
7
7
 
8
8
 
let USDNtoWAVESrate = fraction(exchangeRate, (100 - exchangeRateDiffPercent), 100)
9
9
 
10
10
 
let USDN = base58'3KFXBGGLCjA5Z2DuW4Dq9fDDrHjJJP1ZEkaoajSzuKsC'
11
11
 
12
12
 
let WAVES = base58'WAVES'
13
13
 
14
14
 
let USDNtoWAVESRate = 5
15
15
 
16
16
 
let loanFeePercent = (9 / 100)
17
17
 
18
-
let exchangerUSDNtoWavesAddress = Address(base58'3Mw2biLQi5ygMk7zexboNGrnMYuaSfrziY8')
18
+
func exchangeWAVEStoUSDN (amount,assetId,caller) = if ((assetId == WAVES))
19
+
    then [ScriptTransfer(Address(caller), (amount / USDNtoWAVESrate), USDN)]
20
+
    else throw("Unexpected Token")
19
21
 
20
-
let exchangerWavesToUSDNAddress = Address(base58'3Mw2biLQi5ygMk7zexboNGrnMYuaSfrziY8')
21
22
 
22
-
let loanerAddress = Address(base58'3Mw2biLQi5ygMk7zexboNGrnMYuaSfrziY8')
23
+
func exchangeUSDNtoWAVES (amount,assetId,caller) = if ((assetId == USDN))
24
+
    then [ScriptTransfer(Address(caller), (amount * USDNtoWAVESRate), WAVES)]
25
+
    else throw("Unexpected Token")
23
26
 
24
-
@Callable(i)
25
-
func trade (borrower) = {
26
-
    let loanAmount = if ((i.payments[0].assetId == USDN))
27
-
        then i.payments[0].amount
27
+
28
+
func trade (borrower,amount,assetId) = {
29
+
    let loanAmount = if ((assetId == USDN))
30
+
        then amount
28
31
 
        else throw("Unexpected payment asset")
29
32
 
    let startBalanceWAVES = assetBalance(this, WAVES)
30
33
 
    if ((startBalanceWAVES == startBalanceWAVES))
31
34
 
        then {
32
-
            let r1 = invoke(exchangerUSDNtoWavesAddress, "exchangeUSDNtoWAVES", nil, [AttachedPayment(USDN, loanAmount)])
35
+
            let r1 = exchangeUSDNtoWAVES(amount, assetId, borrower)
33
36
 
            if ((r1 == r1))
34
37
 
                then {
35
38
 
                    let diffWAVES = (assetBalance(this, WAVES) - startBalanceWAVES)
36
39
 
                    if ((diffWAVES == diffWAVES))
37
40
 
                        then {
38
-
                            let r2 = invoke(exchangerWavesToUSDNAddress, "exchangeWAVEStoUSDN", nil, [AttachedPayment(WAVES, diffWAVES)])
41
+
                            let r2 = exchangeWAVEStoUSDN(amount, assetId, borrower)
39
42
 
                            if ((r2 == r2))
40
43
 
                                then {
41
44
 
                                    let debt = fraction(loanAmount, (100 + loanFeePercent), 100)
42
45
 
                                    let profit = (assetBalance(this, USDN) - debt)
43
-
[ScriptTransfer(Address(borrower), profit, USDN), ScriptTransfer(loanerAddress, debt, USDN)]
46
+
[ScriptTransfer(Address(borrower), profit, USDN), ScriptTransfer(this, debt, USDN)]
44
47
 
                                    }
45
48
 
                                else throw("Strict value is not equal to itself.")
46
49
 
                            }
47
50
 
                        else throw("Strict value is not equal to itself.")
48
51
 
                    }
49
52
 
                else throw("Strict value is not equal to itself.")
50
53
 
            }
51
54
 
        else throw("Strict value is not equal to itself.")
52
55
 
    }
53
56
 
54
57
 
55
-
56
58
 
@Callable(i)
57
-
func exchangeWAVEStoUSDN () = if ((i.payments[0].assetId == WAVES))
58
-
    then [ScriptTransfer(i.caller, (i.payments[0].amount / USDNtoWAVESrate), USDN)]
59
-
    else throw("Unexpected Token")
60
-
61
-
62
-
63
-
@Callable(i)
64
-
func exchangeUSDNtoWAVES () = if ((i.payments[0].assetId == USDN))
65
-
    then [ScriptTransfer(i.caller, (i.payments[0].amount * USDNtoWAVESRate), WAVES)]
66
-
    else throw("Unexpected Token")
67
-
68
-
69
-
70
-
@Callable(i)
71
-
func flashloan (amount,callback,borrower) = {
59
+
func flashloan (amount,callback,borrower,assetId) = {
72
60
 
    let startBalance = assetBalance(this, USDN)
73
61
 
    if ((startBalance == startBalance))
74
62
 
        then {
75
-
            let r = invoke(Address(fromBase58String(borrower)), callback, [i.caller.bytes], [AttachedPayment(USDN, amount)])
76
-
            if ((r == r))
63
+
            let test = trade(borrower, amount, assetId)
64
+
            if ((test == test))
77
65
 
                then {
78
66
 
                    let balanceDiff = (assetBalance(this, USDN) - startBalance)
79
67
 
                    let profit = fraction(amount, loanFeePercent, 100)
80
68
 
                    if ((profit > balanceDiff))
81
69
 
                        then throw(((("Debt not paid, because diff = " + toString(balanceDiff)) + ". Expected diff = ") + toString(profit)))
82
70
 
                        else nil
83
71
 
                    }
84
72
 
                else throw("Strict value is not equal to itself.")
85
73
 
            }
86
74
 
        else throw("Strict value is not equal to itself.")
87
75
 
    }
88
76
 
89
77
 

github/deemru/w8io/169f3d6 
37.98 ms ◑