w8 · tx · 3FU···4YJ

tx · 3FUGuFpzbYabvBrmuP7MrXCJY6eQydXzPvJdb1BCu4YJ

3NCD7sCFocnQuSL6gaDqWD9Noq9RCwjCup4:  -0.01400000 Waves

2020.10.22 21:51 [1232162] smart account 3NCD7sCFocnQuSL6gaDqWD9Noq9RCwjCup4 > SELF 0.00000000 Waves

{
    "type": 13,
    "id": "3FUGuFpzbYabvBrmuP7MrXCJY6eQydXzPvJdb1BCu4YJ",
    "fee": 1400000,
    "feeAssetId": null,
    "timestamp": 1603392704263,
    "version": 1,
    "sender": "3NCD7sCFocnQuSL6gaDqWD9Noq9RCwjCup4",
    "senderPublicKey": "HuNwRHF9iwGdZDspJ7V7eY2akXjp5fWmTprKuM97CATY",
    "proofs": [
        "coB48q3hptjsVkGr7JqEc9WH7cYBvy2CFNoW1MhijWNbZnQzfxbRz1phNmMnK1MgJ8Bj1ChSKf86tgDeD9qRxGe"
    ],
    "script": 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",
    "chainId": 84,
    "height": 1232162,
    "applicationStatus": "succeeded",
    "spentComplexity": 0
}

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Full: 
Old New Differences
1 - # no script
1 + {-# STDLIB_VERSION 4 #-}
2 + {-# SCRIPT_TYPE ACCOUNT #-}
3 + {-# CONTENT_TYPE DAPP #-}
4 + let IdTokenA = getStringValue(this, "assetIdTokenA")
5 + 
6 + let IdTokenB = getStringValue(this, "assetIdTokenB")
7 + 
8 + let IdTokenShare = getStringValue(this, "share_token_id")
9 + 
10 + let dAppTokensAmountA = getIntegerValue(this, "amountTokenA")
11 + 
12 + let dAppTokensAmountB = getIntegerValue(this, "amountTokenB")
13 + 
14 + let tokenShareSupply = getIntegerValue(this, "share_token_supply")
15 + 
16 + let comission = 0
17 + 
18 + let comissionScaleDelimiter = 10000
19 + 
20 + let version = "2.0.0"
21 + 
22 + let invariant = getIntegerValue(this, "invariant")
23 + 
24 + let scaleValue8 = 100000000
25 + 
26 + let scaleValue8Digits = 8
27 + 
28 + let scaleValue12 = 1000000000000
29 + 
30 + let ratioThresholdMax = 100000000
31 + 
32 + let ratioThresholdMin = 99999000
33 + 
34 + let alpha = 50
35 + 
36 + let alphaDigits = 2
37 + 
38 + let betta = 46
39 + 
40 + let bettaDigits = 2
41 + 
42 + func skeweness (x,y) = ((fraction(scaleValue8, x, y) + fraction(scaleValue8, y, x)) / 2)
43 + 
44 + 
45 + func invariantCalc (x,y) = {
46 +     let sk = skeweness(x, y)
47 +     (fraction((x + y), pow(sk, scaleValue8Digits, -(alpha), alphaDigits, 8, HALFDOWN), scaleValue8) + (2 * fraction(fraction(pow(x, 0, 5, 1, scaleValue8Digits, HALFDOWN), pow(y, 0, 5, 1, scaleValue8Digits, HALFDOWN), (scaleValue8 * scaleValue8)), pow((sk - ((betta * scaleValue8) / 100)), 0, alpha, alphaDigits, scaleValue8Digits, HALFDOWN), scaleValue12)))
48 +     }
49 + 
50 + 
51 + func assetId (asset) = if ((asset == "WAVES"))
52 +     then unit
53 +     else fromBase58String(asset)
54 + 
55 + 
56 + func calculateHowManySendTokenA (amountToSendEstimated,minTokenRecieveAmount,amountTokenA,amountTokenB,tokenReceiveAmount) = {
57 +     let slippageValue = (scaleValue8 - ((scaleValue8 * 1) / 10000))
58 +     let invariantEstimatedRatio = fraction(invariant, scaleValue8, invariantCalc((amountTokenA - amountToSendEstimated), (amountTokenB + tokenReceiveAmount)))
59 +     if (if ((invariantEstimatedRatio > slippageValue))
60 +         then (scaleValue8 > invariantEstimatedRatio)
61 +         else false)
62 +         then ((amountToSendEstimated * (comissionScaleDelimiter - comission)) / comissionScaleDelimiter)
63 +         else throw("price has changed dramatically. err2")
64 +     }
65 + 
66 + 
67 + func calculateHowManySendTokenB (amountToSendEstimated,minTokenRecieveAmount,amountTokenA,amountTokenB,tokenReceiveAmount) = {
68 +     let slippageValue = (scaleValue8 - ((scaleValue8 * 1) / 10000))
69 +     let invariantEstimatedRatio = fraction(invariant, scaleValue8, invariantCalc((amountTokenA + tokenReceiveAmount), (amountTokenB - amountToSendEstimated)))
70 +     if (if ((invariantEstimatedRatio > slippageValue))
71 +         then (scaleValue8 > invariantEstimatedRatio)
72 +         else false)
73 +         then ((amountToSendEstimated * (comissionScaleDelimiter - comission)) / comissionScaleDelimiter)
74 +         else throw("price has changed dramatically. err2")
75 +     }
76 + 
77 + 
78 + let assetIdTokenA = assetId(IdTokenA)
79 + 
80 + let assetIdTokenB = assetId(IdTokenB)
81 + 
82 + let assetIdTokenShare = fromBase58String(IdTokenShare)
83 + 
84 + @Callable(contextObj)
85 + func fund () = {
86 +     let paymentA = value(contextObj.payments[0])
87 +     let paymentB = value(contextObj.payments[1])
88 +     let assetIdReceivedA = paymentA.assetId
89 +     let tokenReceiveAmountA = paymentA.amount
90 +     let assetIdReceivedB = paymentB.assetId
91 +     let tokenReceiveAmountB = paymentB.amount
92 +     let digitTokenA =     match assetIdReceivedA {
93 +         case p: Unit => 
94 +             8
95 +         case p: ByteVector => 
96 +             value(assetInfo(p)).decimals
97 +         case _ => 
98 +             throw("Match error")
99 +     }
100 +     let digitTokenB =     match assetIdReceivedB {
101 +         case p: Unit => 
102 +             8
103 +         case p: ByteVector => 
104 +             value(assetInfo(p)).decimals
105 +         case _ => 
106 +             throw("Match error")
107 +     }
108 +     if (isDefined(getBoolean(this, "status")))
109 +         then throw("already active")
110 +         else {
111 +             let shareTokenName = ("ShareT_" + takeRight(toString(this), 5))
112 +             let digitsInShareToken = ((digitTokenA + digitTokenB) / 2)
113 +             let shareTokenInitialAmount = fraction(pow(tokenReceiveAmountA, digitTokenA, 5, 1, digitTokenA, HALFDOWN), pow(tokenReceiveAmountB, digitTokenB, 5, 1, digitTokenB, HALFDOWN), pow(10, 0, digitsInShareToken, 0, 0, HALFDOWN))
114 +             let shareTokenAssetId = calculateAssetId(Issue(shareTokenName, shareTokenName, shareTokenInitialAmount, digitsInShareToken, true))
115 +             let assetIdTokenStringA =             match assetIdReceivedA {
116 +                 case t: Unit => 
117 +                     "WAVES"
118 +                 case t: ByteVector => 
119 +                     toBase58String(value(assetIdReceivedA))
120 +                 case _ => 
121 +                     throw("Match error")
122 +             }
123 +             let assetIdTokenStringB =             match assetIdReceivedB {
124 +                 case t: Unit => 
125 +                     "WAVES"
126 +                 case t: ByteVector => 
127 +                     toBase58String(value(assetIdReceivedB))
128 +                 case _ => 
129 +                     throw("Match error")
130 +             }
131 +             let invariantCalcualated = invariantCalc(tokenReceiveAmountA, tokenReceiveAmountB)
132 + [IntegerEntry("amountTokenA", tokenReceiveAmountA), IntegerEntry("amountTokenB", tokenReceiveAmountB), StringEntry("assetIdTokenA", assetIdTokenStringA), StringEntry("assetIdTokenB", assetIdTokenStringB), IntegerEntry("invariant", invariantCalcualated), IntegerEntry("exchange_count", 0), BooleanEntry("status", true), IntegerEntry("comission", comission), IntegerEntry("comissionScaleDelimiter", comissionScaleDelimiter), StringEntry("version", version), Issue(shareTokenName, shareTokenName, shareTokenInitialAmount, digitsInShareToken, true), ScriptTransfer(contextObj.caller, shareTokenInitialAmount, shareTokenAssetId), StringEntry("share_token_id", toBase58String(shareTokenAssetId)), IntegerEntry("share_token_supply", shareTokenInitialAmount)]
133 +             }
134 +     }
135 + 
136 + 
137 + 
138 + @Callable(contextObj)
139 + func replenishmentWithTwoToken () = {
140 +     let paymentA = value(contextObj.payments[0])
141 +     let paymentB = value(contextObj.payments[1])
142 +     let assetIdReceivedA = paymentA.assetId
143 +     let tokenReceiveAmountA = paymentA.amount
144 +     let assetIdReceivedB = paymentB.assetId
145 +     let tokenReceiveAmountB = paymentB.amount
146 +     let invariantCalcualated = invariantCalc((dAppTokensAmountA + tokenReceiveAmountA), (dAppTokensAmountB + tokenReceiveAmountB))
147 +     if (if ((assetIdReceivedA != assetIdTokenA))
148 +         then true
149 +         else (assetIdReceivedB != assetIdTokenB))
150 +         then throw("incorrect assets")
151 +         else {
152 +             let tokenRatio = (fraction(tokenReceiveAmountA, (1000000000000 * 1000), dAppTokensAmountA) / fraction(dAppTokensAmountB, 1000000000000, tokenReceiveAmountB))
153 +             if (!(if ((tokenRatio > 990))
154 +                 then (1010 > tokenRatio)
155 +                 else false))
156 +                 then throw("incorrect assets amount")
157 +                 else {
158 +                     let shareTokenToPayAmount = fraction(tokenReceiveAmountA, tokenShareSupply, dAppTokensAmountA)
159 +                     if ((shareTokenToPayAmount == 0))
160 +                         then throw("you try replansish with very small amount")
161 +                         else [Reissue(assetIdTokenShare, shareTokenToPayAmount, true), ScriptTransfer(contextObj.caller, shareTokenToPayAmount, assetIdTokenShare), IntegerEntry("share_token_supply", (tokenShareSupply + shareTokenToPayAmount)), IntegerEntry("amountTokenA", (dAppTokensAmountA + tokenReceiveAmountA)), IntegerEntry("amountTokenB", (dAppTokensAmountB + tokenReceiveAmountB)), IntegerEntry("invariant", invariantCalcualated)]
162 +                     }
163 +             }
164 +     }
165 + 
166 + 
167 + 
168 + @Callable(contextObj)
169 + func replanishmentWithOneToken (tokenAamountWithOldInvariantNewPrice,tokenBamountWithOldInvariantNewPrice) = {
170 +     let payment = value(contextObj.payments[0])
171 +     let assetIdReceived = payment.assetId
172 +     let tokenReceiveAmount = payment.amount
173 +     if ((assetIdReceived == assetIdTokenA))
174 +         then {
175 +             let newAmountTokenA = (dAppTokensAmountA + tokenReceiveAmount)
176 +             let newInvariant = invariantCalc(newAmountTokenA, dAppTokensAmountB)
177 +             let priceAtoBwith8digits = fraction(newAmountTokenA, scaleValue8, dAppTokensAmountB)
178 +             let isCorrectPriceRation = fraction(tokenBamountWithOldInvariantNewPrice, priceAtoBwith8digits, tokenAamountWithOldInvariantNewPrice)
179 +             if (if ((isCorrectPriceRation > ratioThresholdMax))
180 +                 then true
181 +                 else (ratioThresholdMin > isCorrectPriceRation))
182 +                 then throw("incorrect function args: price")
183 +                 else {
184 +                     let calculatedInvariantWithNewPrice = invariantCalc(tokenAamountWithOldInvariantNewPrice, tokenBamountWithOldInvariantNewPrice)
185 +                     let isCorrectInvariantRation = fraction(calculatedInvariantWithNewPrice, scaleValue8, invariant)
186 +                     if (if ((isCorrectInvariantRation > ratioThresholdMax))
187 +                         then true
188 +                         else (ratioThresholdMin > isCorrectInvariantRation))
189 +                         then throw("incorrect function args: invariant")
190 +                         else {
191 +                             let newTokenShareSupply = fraction(tokenBamountWithOldInvariantNewPrice, tokenShareSupply, dAppTokensAmountB)
192 +                             let shareTokenToPayAmount = (newTokenShareSupply - tokenShareSupply)
193 + [Reissue(assetIdTokenShare, shareTokenToPayAmount, true), ScriptTransfer(contextObj.caller, shareTokenToPayAmount, assetIdTokenShare), IntegerEntry("share_token_supply", (tokenShareSupply + shareTokenToPayAmount)), IntegerEntry("amountTokenA", newAmountTokenA), IntegerEntry("invariant", newInvariant)]
194 +                             }
195 +                     }
196 +             }
197 +         else if ((assetIdReceived == assetIdTokenB))
198 +             then {
199 +                 let newAmountTokenB = (dAppTokensAmountB + tokenReceiveAmount)
200 +                 let newInvariant = invariantCalc(dAppTokensAmountA, newAmountTokenB)
201 +                 let priceAtoBwith8digits = fraction(dAppTokensAmountA, scaleValue8, newAmountTokenB)
202 +                 let isCorrectPriceRation = fraction(tokenBamountWithOldInvariantNewPrice, priceAtoBwith8digits, tokenAamountWithOldInvariantNewPrice)
203 +                 if (if ((isCorrectPriceRation > ratioThresholdMax))
204 +                     then true
205 +                     else (ratioThresholdMin > isCorrectPriceRation))
206 +                     then throw("incorrect function args: price")
207 +                     else {
208 +                         let calculatedInvariantWithNewPrice = invariantCalc(tokenAamountWithOldInvariantNewPrice, tokenBamountWithOldInvariantNewPrice)
209 +                         let isCorrectInvariantRation = fraction(calculatedInvariantWithNewPrice, scaleValue8, invariant)
210 +                         if (if ((isCorrectInvariantRation > ratioThresholdMax))
211 +                             then true
212 +                             else (ratioThresholdMin > isCorrectInvariantRation))
213 +                             then throw("incorrect function args: invariant")
214 +                             else {
215 +                                 let newTokenShareSupply = fraction(tokenBamountWithOldInvariantNewPrice, tokenShareSupply, dAppTokensAmountB)
216 +                                 let shareTokenToPayAmount = (newTokenShareSupply - tokenShareSupply)
217 + [Reissue(assetIdTokenShare, shareTokenToPayAmount, true), ScriptTransfer(contextObj.caller, shareTokenToPayAmount, assetIdTokenShare), IntegerEntry("share_token_supply", (tokenShareSupply + shareTokenToPayAmount)), IntegerEntry("amountTokenB", newAmountTokenB), IntegerEntry("invariant", newInvariant)]
218 +                                 }
219 +                         }
220 +                 }
221 +             else throw("incorrect assets in payment")
222 +     }
223 + 
224 + 
225 + 
226 + @Callable(contextObj)
227 + func withdraw () = {
228 +     let payment = value(contextObj.payments[0])
229 +     let assetIdReceived = payment.assetId
230 +     let tokenReceiveAmount = payment.amount
231 +     if ((assetIdTokenShare != assetIdReceived))
232 +         then throw(("you need to attach share token for this dApp " + toBase58String(assetIdTokenShare)))
233 +         else {
234 +             let tokensToPayA = fraction(tokenReceiveAmount, dAppTokensAmountA, tokenShareSupply)
235 +             let tokensToPayB = fraction(tokenReceiveAmount, dAppTokensAmountB, tokenShareSupply)
236 +             let invariantCalcualated = invariantCalc((dAppTokensAmountA - tokensToPayA), (dAppTokensAmountB - tokensToPayB))
237 + [IntegerEntry("amountTokenA", (dAppTokensAmountA - tokensToPayA)), IntegerEntry("amountTokenB", (dAppTokensAmountB - tokensToPayB)), IntegerEntry("share_token_supply", (tokenShareSupply - tokenReceiveAmount)), ScriptTransfer(contextObj.caller, tokensToPayA, assetIdTokenA), ScriptTransfer(contextObj.caller, tokensToPayB, assetIdTokenB), Burn(assetIdTokenShare, tokenReceiveAmount), IntegerEntry("invariant", invariantCalcualated)]
238 +             }
239 +     }
240 + 
241 + 
242 + 
243 + @Callable(contextObj)
244 + func exchanger (amountToSendEstimated,minTokenRecieveAmount) = {
245 +     let amountTokenB = getIntegerValue(this, "amountTokenB")
246 +     let amountTokenA = getIntegerValue(this, "amountTokenA")
247 +     let payment = value(contextObj.payments[0])
248 +     let assetIdReceived = payment.assetId
249 +     let tokenReceiveAmount = payment.amount
250 +     let count =     match getInteger(this, "exchange_count") {
251 +         case i: Int => 
252 +             (value(getInteger(this, "exchange_count")) + i)
253 +         case _ => 
254 +             0
255 +     }
256 +     if ((assetIdReceived == assetIdTokenB))
257 +         then {
258 +             let tokenSendAmount = calculateHowManySendTokenA(amountToSendEstimated, minTokenRecieveAmount, amountTokenA, amountTokenB, tokenReceiveAmount)
259 +             let assetIdSent = assetIdTokenA
260 + [IntegerEntry("amountTokenA", (amountTokenA - tokenSendAmount)), IntegerEntry("amountTokenB", (amountTokenB + tokenReceiveAmount)), IntegerEntry("exchange_count", (count + 1)), IntegerEntry("invariant", invariantCalc((amountTokenA - tokenSendAmount), (amountTokenB + tokenReceiveAmount))), ScriptTransfer(contextObj.caller, tokenSendAmount, assetIdSent)]
261 +             }
262 +         else if ((assetIdReceived == assetIdTokenA))
263 +             then {
264 +                 let tokenSendAmount = calculateHowManySendTokenB(amountToSendEstimated, minTokenRecieveAmount, amountTokenA, amountTokenB, tokenReceiveAmount)
265 +                 let assetIdSent = assetIdTokenB
266 + [IntegerEntry("amountTokenA", (amountTokenA + tokenReceiveAmount)), IntegerEntry("amountTokenB", (amountTokenB - tokenSendAmount)), IntegerEntry("exchange_count", (count + 1)), IntegerEntry("invariant", invariantCalc((amountTokenA + tokenReceiveAmount), (amountTokenB - tokenSendAmount))), ScriptTransfer(contextObj.caller, tokenSendAmount, assetIdSent)]
267 +                 }
268 +             else throw("Asset is not allowed")
269 +     }
270 + 
271 +

Old	New		Differences
1		-	# no script
	1	+	{-# STDLIB_VERSION 4 #-}
	2	+	{-# SCRIPT_TYPE ACCOUNT #-}
	3	+	{-# CONTENT_TYPE DAPP #-}
	4	+	let IdTokenA = getStringValue(this, "assetIdTokenA")
	5	+
	6	+	let IdTokenB = getStringValue(this, "assetIdTokenB")
	7	+
	8	+	let IdTokenShare = getStringValue(this, "share_token_id")
	9	+
	10	+	let dAppTokensAmountA = getIntegerValue(this, "amountTokenA")
	11	+
	12	+	let dAppTokensAmountB = getIntegerValue(this, "amountTokenB")
	13	+
	14	+	let tokenShareSupply = getIntegerValue(this, "share_token_supply")
	15	+
	16	+	let comission = 0
	17	+
	18	+	let comissionScaleDelimiter = 10000
	19	+
	20	+	let version = "2.0.0"
	21	+
	22	+	let invariant = getIntegerValue(this, "invariant")
	23	+
	24	+	let scaleValue8 = 100000000
	25	+
	26	+	let scaleValue8Digits = 8
	27	+
	28	+	let scaleValue12 = 1000000000000
	29	+
	30	+	let ratioThresholdMax = 100000000
	31	+
	32	+	let ratioThresholdMin = 99999000
	33	+
	34	+	let alpha = 50
	35	+
	36	+	let alphaDigits = 2
	37	+
	38	+	let betta = 46
	39	+
	40	+	let bettaDigits = 2
	41	+
	42	+	func skeweness (x,y) = ((fraction(scaleValue8, x, y) + fraction(scaleValue8, y, x)) / 2)
	43	+
	44	+
	45	+	func invariantCalc (x,y) = {
	46	+	let sk = skeweness(x, y)
	47	+	(fraction((x + y), pow(sk, scaleValue8Digits, -(alpha), alphaDigits, 8, HALFDOWN), scaleValue8) + (2 * fraction(fraction(pow(x, 0, 5, 1, scaleValue8Digits, HALFDOWN), pow(y, 0, 5, 1, scaleValue8Digits, HALFDOWN), (scaleValue8 * scaleValue8)), pow((sk - ((betta * scaleValue8) / 100)), 0, alpha, alphaDigits, scaleValue8Digits, HALFDOWN), scaleValue12)))
	48	+	}
	49	+
	50	+
	51	+	func assetId (asset) = if ((asset == "WAVES"))
	52	+	then unit
	53	+	else fromBase58String(asset)
	54	+
	55	+
	56	+	func calculateHowManySendTokenA (amountToSendEstimated,minTokenRecieveAmount,amountTokenA,amountTokenB,tokenReceiveAmount) = {
	57	+	let slippageValue = (scaleValue8 - ((scaleValue8 * 1) / 10000))
	58	+	let invariantEstimatedRatio = fraction(invariant, scaleValue8, invariantCalc((amountTokenA - amountToSendEstimated), (amountTokenB + tokenReceiveAmount)))
	59	+	if (if ((invariantEstimatedRatio > slippageValue))
	60	+	then (scaleValue8 > invariantEstimatedRatio)
	61	+	else false)
	62	+	then ((amountToSendEstimated * (comissionScaleDelimiter - comission)) / comissionScaleDelimiter)
	63	+	else throw("price has changed dramatically. err2")
	64	+	}
	65	+
	66	+
	67	+	func calculateHowManySendTokenB (amountToSendEstimated,minTokenRecieveAmount,amountTokenA,amountTokenB,tokenReceiveAmount) = {
	68	+	let slippageValue = (scaleValue8 - ((scaleValue8 * 1) / 10000))
	69	+	let invariantEstimatedRatio = fraction(invariant, scaleValue8, invariantCalc((amountTokenA + tokenReceiveAmount), (amountTokenB - amountToSendEstimated)))
	70	+	if (if ((invariantEstimatedRatio > slippageValue))
	71	+	then (scaleValue8 > invariantEstimatedRatio)
	72	+	else false)
	73	+	then ((amountToSendEstimated * (comissionScaleDelimiter - comission)) / comissionScaleDelimiter)
	74	+	else throw("price has changed dramatically. err2")
	75	+	}
	76	+
	77	+
	78	+	let assetIdTokenA = assetId(IdTokenA)
	79	+
	80	+	let assetIdTokenB = assetId(IdTokenB)
	81	+
	82	+	let assetIdTokenShare = fromBase58String(IdTokenShare)
	83	+
	84	+	@Callable(contextObj)
	85	+	func fund () = {
	86	+	let paymentA = value(contextObj.payments[0])
	87	+	let paymentB = value(contextObj.payments[1])
	88	+	let assetIdReceivedA = paymentA.assetId
	89	+	let tokenReceiveAmountA = paymentA.amount
	90	+	let assetIdReceivedB = paymentB.assetId
	91	+	let tokenReceiveAmountB = paymentB.amount
	92	+	let digitTokenA = match assetIdReceivedA {
	93	+	case p: Unit =>
	94	+	8
	95	+	case p: ByteVector =>
	96	+	value(assetInfo(p)).decimals
	97	+	case _ =>
	98	+	throw("Match error")
	99	+	}
	100	+	let digitTokenB = match assetIdReceivedB {
	101	+	case p: Unit =>
	102	+	8
	103	+	case p: ByteVector =>
	104	+	value(assetInfo(p)).decimals
	105	+	case _ =>
	106	+	throw("Match error")
	107	+	}
	108	+	if (isDefined(getBoolean(this, "status")))
	109	+	then throw("already active")
	110	+	else {
	111	+	let shareTokenName = ("ShareT_" + takeRight(toString(this), 5))
	112	+	let digitsInShareToken = ((digitTokenA + digitTokenB) / 2)
	113	+	let shareTokenInitialAmount = fraction(pow(tokenReceiveAmountA, digitTokenA, 5, 1, digitTokenA, HALFDOWN), pow(tokenReceiveAmountB, digitTokenB, 5, 1, digitTokenB, HALFDOWN), pow(10, 0, digitsInShareToken, 0, 0, HALFDOWN))
	114	+	let shareTokenAssetId = calculateAssetId(Issue(shareTokenName, shareTokenName, shareTokenInitialAmount, digitsInShareToken, true))
	115	+	let assetIdTokenStringA = match assetIdReceivedA {
	116	+	case t: Unit =>
	117	+	"WAVES"
	118	+	case t: ByteVector =>
	119	+	toBase58String(value(assetIdReceivedA))
	120	+	case _ =>
	121	+	throw("Match error")
	122	+	}
	123	+	let assetIdTokenStringB = match assetIdReceivedB {
	124	+	case t: Unit =>
	125	+	"WAVES"
	126	+	case t: ByteVector =>
	127	+	toBase58String(value(assetIdReceivedB))
	128	+	case _ =>
	129	+	throw("Match error")
	130	+	}
	131	+	let invariantCalcualated = invariantCalc(tokenReceiveAmountA, tokenReceiveAmountB)
	132	+	[IntegerEntry("amountTokenA", tokenReceiveAmountA), IntegerEntry("amountTokenB", tokenReceiveAmountB), StringEntry("assetIdTokenA", assetIdTokenStringA), StringEntry("assetIdTokenB", assetIdTokenStringB), IntegerEntry("invariant", invariantCalcualated), IntegerEntry("exchange_count", 0), BooleanEntry("status", true), IntegerEntry("comission", comission), IntegerEntry("comissionScaleDelimiter", comissionScaleDelimiter), StringEntry("version", version), Issue(shareTokenName, shareTokenName, shareTokenInitialAmount, digitsInShareToken, true), ScriptTransfer(contextObj.caller, shareTokenInitialAmount, shareTokenAssetId), StringEntry("share_token_id", toBase58String(shareTokenAssetId)), IntegerEntry("share_token_supply", shareTokenInitialAmount)]
	133	+	}
	134	+	}
	135	+
	136	+
	137	+
	138	+	@Callable(contextObj)
	139	+	func replenishmentWithTwoToken () = {
	140	+	let paymentA = value(contextObj.payments[0])
	141	+	let paymentB = value(contextObj.payments[1])
	142	+	let assetIdReceivedA = paymentA.assetId
	143	+	let tokenReceiveAmountA = paymentA.amount
	144	+	let assetIdReceivedB = paymentB.assetId
	145	+	let tokenReceiveAmountB = paymentB.amount
	146	+	let invariantCalcualated = invariantCalc((dAppTokensAmountA + tokenReceiveAmountA), (dAppTokensAmountB + tokenReceiveAmountB))
	147	+	if (if ((assetIdReceivedA != assetIdTokenA))
	148	+	then true
	149	+	else (assetIdReceivedB != assetIdTokenB))
	150	+	then throw("incorrect assets")
	151	+	else {
	152	+	let tokenRatio = (fraction(tokenReceiveAmountA, (1000000000000 * 1000), dAppTokensAmountA) / fraction(dAppTokensAmountB, 1000000000000, tokenReceiveAmountB))
	153	+	if (!(if ((tokenRatio > 990))
	154	+	then (1010 > tokenRatio)
	155	+	else false))
	156	+	then throw("incorrect assets amount")
	157	+	else {
	158	+	let shareTokenToPayAmount = fraction(tokenReceiveAmountA, tokenShareSupply, dAppTokensAmountA)
	159	+	if ((shareTokenToPayAmount == 0))
	160	+	then throw("you try replansish with very small amount")
	161	+	else [Reissue(assetIdTokenShare, shareTokenToPayAmount, true), ScriptTransfer(contextObj.caller, shareTokenToPayAmount, assetIdTokenShare), IntegerEntry("share_token_supply", (tokenShareSupply + shareTokenToPayAmount)), IntegerEntry("amountTokenA", (dAppTokensAmountA + tokenReceiveAmountA)), IntegerEntry("amountTokenB", (dAppTokensAmountB + tokenReceiveAmountB)), IntegerEntry("invariant", invariantCalcualated)]
	162	+	}
	163	+	}
	164	+	}
	165	+
	166	+
	167	+
	168	+	@Callable(contextObj)
	169	+	func replanishmentWithOneToken (tokenAamountWithOldInvariantNewPrice,tokenBamountWithOldInvariantNewPrice) = {
	170	+	let payment = value(contextObj.payments[0])
	171	+	let assetIdReceived = payment.assetId
	172	+	let tokenReceiveAmount = payment.amount
	173	+	if ((assetIdReceived == assetIdTokenA))
	174	+	then {
	175	+	let newAmountTokenA = (dAppTokensAmountA + tokenReceiveAmount)
	176	+	let newInvariant = invariantCalc(newAmountTokenA, dAppTokensAmountB)
	177	+	let priceAtoBwith8digits = fraction(newAmountTokenA, scaleValue8, dAppTokensAmountB)
	178	+	let isCorrectPriceRation = fraction(tokenBamountWithOldInvariantNewPrice, priceAtoBwith8digits, tokenAamountWithOldInvariantNewPrice)
	179	+	if (if ((isCorrectPriceRation > ratioThresholdMax))
	180	+	then true
	181	+	else (ratioThresholdMin > isCorrectPriceRation))
	182	+	then throw("incorrect function args: price")
	183	+	else {
	184	+	let calculatedInvariantWithNewPrice = invariantCalc(tokenAamountWithOldInvariantNewPrice, tokenBamountWithOldInvariantNewPrice)
	185	+	let isCorrectInvariantRation = fraction(calculatedInvariantWithNewPrice, scaleValue8, invariant)
	186	+	if (if ((isCorrectInvariantRation > ratioThresholdMax))
	187	+	then true
	188	+	else (ratioThresholdMin > isCorrectInvariantRation))
	189	+	then throw("incorrect function args: invariant")
	190	+	else {
	191	+	let newTokenShareSupply = fraction(tokenBamountWithOldInvariantNewPrice, tokenShareSupply, dAppTokensAmountB)
	192	+	let shareTokenToPayAmount = (newTokenShareSupply - tokenShareSupply)
	193	+	[Reissue(assetIdTokenShare, shareTokenToPayAmount, true), ScriptTransfer(contextObj.caller, shareTokenToPayAmount, assetIdTokenShare), IntegerEntry("share_token_supply", (tokenShareSupply + shareTokenToPayAmount)), IntegerEntry("amountTokenA", newAmountTokenA), IntegerEntry("invariant", newInvariant)]
	194	+	}
	195	+	}
	196	+	}
	197	+	else if ((assetIdReceived == assetIdTokenB))
	198	+	then {
	199	+	let newAmountTokenB = (dAppTokensAmountB + tokenReceiveAmount)
	200	+	let newInvariant = invariantCalc(dAppTokensAmountA, newAmountTokenB)
	201	+	let priceAtoBwith8digits = fraction(dAppTokensAmountA, scaleValue8, newAmountTokenB)
	202	+	let isCorrectPriceRation = fraction(tokenBamountWithOldInvariantNewPrice, priceAtoBwith8digits, tokenAamountWithOldInvariantNewPrice)
	203	+	if (if ((isCorrectPriceRation > ratioThresholdMax))
	204	+	then true
	205	+	else (ratioThresholdMin > isCorrectPriceRation))
	206	+	then throw("incorrect function args: price")
	207	+	else {
	208	+	let calculatedInvariantWithNewPrice = invariantCalc(tokenAamountWithOldInvariantNewPrice, tokenBamountWithOldInvariantNewPrice)
	209	+	let isCorrectInvariantRation = fraction(calculatedInvariantWithNewPrice, scaleValue8, invariant)
	210	+	if (if ((isCorrectInvariantRation > ratioThresholdMax))
	211	+	then true
	212	+	else (ratioThresholdMin > isCorrectInvariantRation))
	213	+	then throw("incorrect function args: invariant")
	214	+	else {
	215	+	let newTokenShareSupply = fraction(tokenBamountWithOldInvariantNewPrice, tokenShareSupply, dAppTokensAmountB)
	216	+	let shareTokenToPayAmount = (newTokenShareSupply - tokenShareSupply)
	217	+	[Reissue(assetIdTokenShare, shareTokenToPayAmount, true), ScriptTransfer(contextObj.caller, shareTokenToPayAmount, assetIdTokenShare), IntegerEntry("share_token_supply", (tokenShareSupply + shareTokenToPayAmount)), IntegerEntry("amountTokenB", newAmountTokenB), IntegerEntry("invariant", newInvariant)]
	218	+	}
	219	+	}
	220	+	}
	221	+	else throw("incorrect assets in payment")
	222	+	}
	223	+
	224	+
	225	+
	226	+	@Callable(contextObj)
	227	+	func withdraw () = {
	228	+	let payment = value(contextObj.payments[0])
	229	+	let assetIdReceived = payment.assetId
	230	+	let tokenReceiveAmount = payment.amount
	231	+	if ((assetIdTokenShare != assetIdReceived))
	232	+	then throw(("you need to attach share token for this dApp " + toBase58String(assetIdTokenShare)))
	233	+	else {
	234	+	let tokensToPayA = fraction(tokenReceiveAmount, dAppTokensAmountA, tokenShareSupply)
	235	+	let tokensToPayB = fraction(tokenReceiveAmount, dAppTokensAmountB, tokenShareSupply)
	236	+	let invariantCalcualated = invariantCalc((dAppTokensAmountA - tokensToPayA), (dAppTokensAmountB - tokensToPayB))
	237	+	[IntegerEntry("amountTokenA", (dAppTokensAmountA - tokensToPayA)), IntegerEntry("amountTokenB", (dAppTokensAmountB - tokensToPayB)), IntegerEntry("share_token_supply", (tokenShareSupply - tokenReceiveAmount)), ScriptTransfer(contextObj.caller, tokensToPayA, assetIdTokenA), ScriptTransfer(contextObj.caller, tokensToPayB, assetIdTokenB), Burn(assetIdTokenShare, tokenReceiveAmount), IntegerEntry("invariant", invariantCalcualated)]
	238	+	}
	239	+	}
	240	+
	241	+
	242	+
	243	+	@Callable(contextObj)
	244	+	func exchanger (amountToSendEstimated,minTokenRecieveAmount) = {
	245	+	let amountTokenB = getIntegerValue(this, "amountTokenB")
	246	+	let amountTokenA = getIntegerValue(this, "amountTokenA")
	247	+	let payment = value(contextObj.payments[0])
	248	+	let assetIdReceived = payment.assetId
	249	+	let tokenReceiveAmount = payment.amount
	250	+	let count = match getInteger(this, "exchange_count") {
	251	+	case i: Int =>
	252	+	(value(getInteger(this, "exchange_count")) + i)
	253	+	case _ =>
	254	+	0
	255	+	}
	256	+	if ((assetIdReceived == assetIdTokenB))
	257	+	then {
	258	+	let tokenSendAmount = calculateHowManySendTokenA(amountToSendEstimated, minTokenRecieveAmount, amountTokenA, amountTokenB, tokenReceiveAmount)
	259	+	let assetIdSent = assetIdTokenA
	260	+	[IntegerEntry("amountTokenA", (amountTokenA - tokenSendAmount)), IntegerEntry("amountTokenB", (amountTokenB + tokenReceiveAmount)), IntegerEntry("exchange_count", (count + 1)), IntegerEntry("invariant", invariantCalc((amountTokenA - tokenSendAmount), (amountTokenB + tokenReceiveAmount))), ScriptTransfer(contextObj.caller, tokenSendAmount, assetIdSent)]
	261	+	}
	262	+	else if ((assetIdReceived == assetIdTokenA))
	263	+	then {
	264	+	let tokenSendAmount = calculateHowManySendTokenB(amountToSendEstimated, minTokenRecieveAmount, amountTokenA, amountTokenB, tokenReceiveAmount)
	265	+	let assetIdSent = assetIdTokenB
	266	+	[IntegerEntry("amountTokenA", (amountTokenA + tokenReceiveAmount)), IntegerEntry("amountTokenB", (amountTokenB - tokenSendAmount)), IntegerEntry("exchange_count", (count + 1)), IntegerEntry("invariant", invariantCalc((amountTokenA + tokenReceiveAmount), (amountTokenB - tokenSendAmount))), ScriptTransfer(contextObj.caller, tokenSendAmount, assetIdSent)]
	267	+	}
	268	+	else throw("Asset is not allowed")
	269	+	}
	270	+
	271	+

github/deemru/w8io/169f3d6 
26.33 ms ◑