tx · 6SXoeWqQf8bx81nzHafoynzZ9VGPorntBDAZ5HHNqUSq

3N2j6yXv5aLx1DTVGpwUmJHKZb5XwMfWZhk:  -1.00500000 Waves

2022.07.14 10:47 [2139111] smart account 3N2j6yXv5aLx1DTVGpwUmJHKZb5XwMfWZhk > SELF 0.00000000 Waves

{
    "type": 13,
    "id": "6SXoeWqQf8bx81nzHafoynzZ9VGPorntBDAZ5HHNqUSq",
    "fee": 100500000,
    "feeAssetId": null,
    "timestamp": 1657784930833,
    "version": 2,
    "chainId": 84,
    "sender": "3N2j6yXv5aLx1DTVGpwUmJHKZb5XwMfWZhk",
    "senderPublicKey": "8ZzMCsQ15BKiHk944146A5WQ8eSFd8vaff4xaktCKSBK",
    "proofs": [
        "Yix9sAH7JJRiTnusxT2KifnW2WDzAac5G6LkJc2mYnCtXQtZVMoAiLRzTVuK2cyruPNR8ofj2AB3tDoB2DvTBm7"
    ],
    "script": "base64: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",
    "height": 2139111,
    "applicationStatus": "succeeded",
    "spentComplexity": 0
}

View: original | compacted
Prev: GYWtBGQttGYZQtM4hE6jPmscwjcChrrp5SbKeXEytTzY
Next: 3T2LbSdMzfMKBjUfxnNod9JeCwsCS5VG2WknH2jnbs7v

Diff: 
Old
New
Differences
45
45
 
func isNewPair (token0,token1) = !(isDefined(getString(getPairKey(token0, token1))))
46
46
 
47
47
 
48
-
func isTokenExists (tokenId) = true
48
+
func isTokenExists (tokenId) = match assetInfo(fromBase58String(tokenId)) {
49
+
    case a: Asset => 
50
+
        true
51
+
    case _ => 
52
+
        throw("Bad situation")
53
+
}
49
54
 
50
55
 
51
-
let maxx = 1000000000000
56
+
let maxx = 100000000
52
57
 
53
58
 
let zeroAddr = value(addressFromString("3M4qwDomRabJKLZxuXhwfqLApQkU592nWxF"))
54
59
 
55
60
 
let MINIMUM_LIQUIDITY = 100000
61
+
62
+
func calcAmountOut (amountIn,reserveIn,reserveOut) = {
63
+
    let amountInWithFee = (amountIn * 997)
64
+
    let numerator = (amountInWithFee * reserveOut)
65
+
    let denominator = ((reserveIn * 1000) + amountInWithFee)
66
+
    (numerator / denominator)
67
+
    }
68
+
69
+
70
+
@Callable(i)
71
+
func swap (tokenOut) = {
72
+
    let amountIn = value(i.payments[0].amount)
73
+
    let tokenIn = toBase58String(value(i.payments[0].assetId))
74
+
    let lpToken = getPairTokenId(tokenIn, tokenOut)
75
+
    let $t026392721 = getPairDetails(lpToken)
76
+
    let pairToken0 = $t026392721._1
77
+
    let pairToken1 = $t026392721._2
78
+
    let pairReserve0 = $t026392721._3
79
+
    let pairReserve1 = $t026392721._4
80
+
    let amountOut = calcAmountOut(amountIn, pairReserve0, pairReserve1)
81
+
[ScriptTransfer(i.caller, amountOut, fromBase58String(pairToken1)), setPairDetails(lpToken, tokenIn, tokenOut, (pairReserve0 + amountIn), (pairReserve1 - amountOut))]
82
+
    }
83
+
84
+
56
85
 
57
86
 
@Callable(i)
58
87
 
func mint () = {
61
90
 
    let lpToken = getPairTokenId(token0, token1)
62
91
 
    let amount0 = value(i.payments[0].amount)
63
92
 
    let amount1 = value(i.payments[1].amount)
64
-
    let $t023722454 = getPairDetails(lpToken)
65
-
    let pairToken0 = $t023722454._1
66
-
    let pairToken1 = $t023722454._2
67
-
    let pairReserve0 = $t023722454._3
68
-
    let pairReserve1 = $t023722454._4
93
+
    let $t032693351 = getPairDetails(lpToken)
94
+
    let pairToken0 = $t032693351._1
95
+
    let pairToken1 = $t032693351._2
96
+
    let pairReserve0 = $t032693351._3
97
+
    let pairReserve1 = $t032693351._4
69
98
 
    let totalSupply = getPairTotalSupply(lpToken)
70
99
 
    if ((totalSupply == 0))
71
100
 
        then {
74
103
 
            }
75
104
 
        else {
76
105
 
            let liquidity = min([((amount0 * totalSupply) / pairReserve0), ((amount1 * totalSupply) / pairReserve1)])
77
-
[Reissue(fromBase58String(lpToken), liquidity, true), ScriptTransfer(i.caller, liquidity, fromBase58String(lpToken)), setPairTotalSupply(lpToken, liquidity), setPairDetails(lpToken, token0, token1, (pairReserve0 + amount0), (pairReserve1 + amount1))]
106
+
[Reissue(fromBase58String(lpToken), liquidity, true), ScriptTransfer(i.caller, liquidity, fromBase58String(lpToken)), setPairTotalSupply(lpToken, (totalSupply + liquidity)), setPairDetails(lpToken, token0, token1, (pairReserve0 + amount0), (pairReserve1 + amount1))]
78
107
 
            }
79
108
 
    }
80
109
 
84
113
 
func burn () = {
85
114
 
    let amountlp = value(i.payments[0].amount)
86
115
 
    let assetIdLp = value(i.payments[0].assetId)
87
-
    let $t035473647 = getPairDetails(toBase58String(assetIdLp))
88
-
    let pairToken0 = $t035473647._1
89
-
    let pairToken1 = $t035473647._2
90
-
    let pairReserve0 = $t035473647._3
91
-
    let pairReserve1 = $t035473647._4
116
+
    let $t044584558 = getPairDetails(toBase58String(assetIdLp))
117
+
    let pairToken0 = $t044584558._1
118
+
    let pairToken1 = $t044584558._2
119
+
    let pairReserve0 = $t044584558._3
120
+
    let pairReserve1 = $t044584558._4
92
121
 
    let lpToken = getPairTokenId(pairToken0, pairToken1)
93
122
 
    let totalSupply = getPairTotalSupply(lpToken)
94
123
 
    let share = ((amountlp * maxx) / totalSupply)
Full: 
Old
New
Differences
1
1
 
{-# STDLIB_VERSION 6 #-}
2
2
 
{-# SCRIPT_TYPE ACCOUNT #-}
3
3
 
{-# CONTENT_TYPE DAPP #-}
4
4
 
let separator = "_"
5
5
 
6
6
 
func getPairLength () = valueOrElse(getInteger(this, "pairLength"), 0)
7
7
 
8
8
 
9
9
 
func setPairLenght (newLength) = IntegerEntry("pairLength", newLength)
10
10
 
11
11
 
12
12
 
func getPairKey (token0,token1) = {
13
13
 
    let token0BV = toInt(fromBase58String(token0))
14
14
 
    let token1BV = toInt(fromBase58String(token1))
15
15
 
    if ((token1BV > token0BV))
16
16
 
        then makeString([token0, token1], separator)
17
17
 
        else makeString([token1, token0], separator)
18
18
 
    }
19
19
 
20
20
 
21
21
 
func getPairTokenId (token0,token1) = getStringValue(this, getPairKey(token0, token1))
22
22
 
23
23
 
24
24
 
func setPairTokenId (token0,token1,issueId) = StringEntry(getPairKey(token0, token1), issueId)
25
25
 
26
26
 
27
27
 
func joinPairStruct (token0,token1,reserve0,reserve1) = makeString([token0, token1, toString(reserve0), toString(reserve1)], separator)
28
28
 
29
29
 
30
30
 
func getPairDetails (lpTokenId) = {
31
31
 
    let details = split(valueOrElse(getString(this, lpTokenId), "assetId0_assetId1_0_0"), separator)
32
32
 
    $Tuple4(details[0], details[1], parseIntValue(details[2]), parseIntValue(details[3]))
33
33
 
    }
34
34
 
35
35
 
36
36
 
func setPairDetails (lpTokenId,token0,token1,reserve0,reserve1) = StringEntry(lpTokenId, joinPairStruct(token0, token1, reserve0, reserve1))
37
37
 
38
38
 
39
39
 
func getPairTotalSupply (lpTokenId) = valueOrElse(getInteger(this, (("totalSupply" + separator) + lpTokenId)), 0)
40
40
 
41
41
 
42
42
 
func setPairTotalSupply (lpTokenId,newTotalSupply) = IntegerEntry((("totalSupply" + separator) + lpTokenId), newTotalSupply)
43
43
 
44
44
 
45
45
 
func isNewPair (token0,token1) = !(isDefined(getString(getPairKey(token0, token1))))
46
46
 
47
47
 
48
-
func isTokenExists (tokenId) = true
48
+
func isTokenExists (tokenId) = match assetInfo(fromBase58String(tokenId)) {
49
+
    case a: Asset => 
50
+
        true
51
+
    case _ => 
52
+
        throw("Bad situation")
53
+
}
49
54
 
50
55
 
51
-
let maxx = 1000000000000
56
+
let maxx = 100000000
52
57
 
53
58
 
let zeroAddr = value(addressFromString("3M4qwDomRabJKLZxuXhwfqLApQkU592nWxF"))
54
59
 
55
60
 
let MINIMUM_LIQUIDITY = 100000
61
+
62
+
func calcAmountOut (amountIn,reserveIn,reserveOut) = {
63
+
    let amountInWithFee = (amountIn * 997)
64
+
    let numerator = (amountInWithFee * reserveOut)
65
+
    let denominator = ((reserveIn * 1000) + amountInWithFee)
66
+
    (numerator / denominator)
67
+
    }
68
+
69
+
70
+
@Callable(i)
71
+
func swap (tokenOut) = {
72
+
    let amountIn = value(i.payments[0].amount)
73
+
    let tokenIn = toBase58String(value(i.payments[0].assetId))
74
+
    let lpToken = getPairTokenId(tokenIn, tokenOut)
75
+
    let $t026392721 = getPairDetails(lpToken)
76
+
    let pairToken0 = $t026392721._1
77
+
    let pairToken1 = $t026392721._2
78
+
    let pairReserve0 = $t026392721._3
79
+
    let pairReserve1 = $t026392721._4
80
+
    let amountOut = calcAmountOut(amountIn, pairReserve0, pairReserve1)
81
+
[ScriptTransfer(i.caller, amountOut, fromBase58String(pairToken1)), setPairDetails(lpToken, tokenIn, tokenOut, (pairReserve0 + amountIn), (pairReserve1 - amountOut))]
82
+
    }
83
+
84
+
56
85
 
57
86
 
@Callable(i)
58
87
 
func mint () = {
59
88
 
    let token0 = toBase58String(value(i.payments[0].assetId))
60
89
 
    let token1 = toBase58String(value(i.payments[1].assetId))
61
90
 
    let lpToken = getPairTokenId(token0, token1)
62
91
 
    let amount0 = value(i.payments[0].amount)
63
92
 
    let amount1 = value(i.payments[1].amount)
64
-
    let $t023722454 = getPairDetails(lpToken)
65
-
    let pairToken0 = $t023722454._1
66
-
    let pairToken1 = $t023722454._2
67
-
    let pairReserve0 = $t023722454._3
68
-
    let pairReserve1 = $t023722454._4
93
+
    let $t032693351 = getPairDetails(lpToken)
94
+
    let pairToken0 = $t032693351._1
95
+
    let pairToken1 = $t032693351._2
96
+
    let pairReserve0 = $t032693351._3
97
+
    let pairReserve1 = $t032693351._4
69
98
 
    let totalSupply = getPairTotalSupply(lpToken)
70
99
 
    if ((totalSupply == 0))
71
100
 
        then {
72
101
 
            let liquidity = (sqrt((amount0 * amount1), 0, 0, DOWN) - MINIMUM_LIQUIDITY)
73
102
 
[Reissue(fromBase58String(lpToken), (liquidity + MINIMUM_LIQUIDITY), true), ScriptTransfer(zeroAddr, MINIMUM_LIQUIDITY, fromBase58String(lpToken)), ScriptTransfer(i.caller, liquidity, fromBase58String(lpToken)), setPairTotalSupply(lpToken, (liquidity + MINIMUM_LIQUIDITY)), setPairDetails(lpToken, token0, token1, (pairReserve0 + amount0), (pairReserve1 + amount1))]
74
103
 
            }
75
104
 
        else {
76
105
 
            let liquidity = min([((amount0 * totalSupply) / pairReserve0), ((amount1 * totalSupply) / pairReserve1)])
77
-
[Reissue(fromBase58String(lpToken), liquidity, true), ScriptTransfer(i.caller, liquidity, fromBase58String(lpToken)), setPairTotalSupply(lpToken, liquidity), setPairDetails(lpToken, token0, token1, (pairReserve0 + amount0), (pairReserve1 + amount1))]
106
+
[Reissue(fromBase58String(lpToken), liquidity, true), ScriptTransfer(i.caller, liquidity, fromBase58String(lpToken)), setPairTotalSupply(lpToken, (totalSupply + liquidity)), setPairDetails(lpToken, token0, token1, (pairReserve0 + amount0), (pairReserve1 + amount1))]
78
107
 
            }
79
108
 
    }
80
109
 
81
110
 
82
111
 
83
112
 
@Callable(i)
84
113
 
func burn () = {
85
114
 
    let amountlp = value(i.payments[0].amount)
86
115
 
    let assetIdLp = value(i.payments[0].assetId)
87
-
    let $t035473647 = getPairDetails(toBase58String(assetIdLp))
88
-
    let pairToken0 = $t035473647._1
89
-
    let pairToken1 = $t035473647._2
90
-
    let pairReserve0 = $t035473647._3
91
-
    let pairReserve1 = $t035473647._4
116
+
    let $t044584558 = getPairDetails(toBase58String(assetIdLp))
117
+
    let pairToken0 = $t044584558._1
118
+
    let pairToken1 = $t044584558._2
119
+
    let pairReserve0 = $t044584558._3
120
+
    let pairReserve1 = $t044584558._4
92
121
 
    let lpToken = getPairTokenId(pairToken0, pairToken1)
93
122
 
    let totalSupply = getPairTotalSupply(lpToken)
94
123
 
    let share = ((amountlp * maxx) / totalSupply)
95
124
 
    let amount0 = ((share * pairReserve0) / maxx)
96
125
 
    let amount1 = ((share * pairReserve1) / maxx)
97
126
 
[Burn(fromBase58String(lpToken), amountlp), ScriptTransfer(i.caller, amount0, fromBase58String(pairToken0)), ScriptTransfer(i.caller, amount1, fromBase58String(pairToken1)), setPairTotalSupply(lpToken, (totalSupply - amountlp)), setPairDetails(lpToken, pairToken0, pairToken1, (pairReserve0 - amount0), (pairReserve1 - amount1))]
98
127
 
    }
99
128
 
100
129
 
101
130
 
102
131
 
@Callable(i)
103
132
 
func addLiquidityPool (token0,token1) = if (isNewPair(token0, token1))
104
133
 
    then if ((token0 != token1))
105
134
 
        then if (if (isTokenExists(token0))
106
135
 
            then isTokenExists(token1)
107
136
 
            else false)
108
137
 
            then {
109
138
 
                let newToken = Issue(toBase58String(take(i.transactionId, 10)), "", 0, 0, true)
110
139
 
                let issueId = toBase58String(calculateAssetId(newToken))
111
140
 
                let currentPairIndex = getPairLength()
112
141
 
[newToken, StringEntry(toString(currentPairIndex), issueId), setPairLenght((currentPairIndex + 1)), setPairTokenId(token0, token1, issueId), setPairDetails(issueId, token0, token1, 0, 0)]
113
142
 
                }
114
143
 
            else throw("Wrong tokens")
115
144
 
        else throw("Equal tokens")
116
145
 
    else throw("Pair already exists")
117
146
 
118
147
 

github/deemru/w8io/03bedc9 
52.27 ms ◑