tx · FY7b9CtA8uuXo1zKc9d3biEHHrH2MWZxsJAtNKAdz2gq

3MyfXGfSByEsD6XWCar4c9fXrfTCMEWTRJA:  -0.01000000 Waves

2020.05.06 16:25 [986315] smart account 3MyfXGfSByEsD6XWCar4c9fXrfTCMEWTRJA > SELF 0.00000000 Waves

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"chainId": 84, "height": 986315, "spentComplexity": 0 } View: original | compacted Prev: none Next: none Full:
OldNewDifferences
1-# no script
1+{-# STDLIB_VERSION 3 #-}
2+{-# SCRIPT_TYPE ACCOUNT #-}
3+{-# CONTENT_TYPE DAPP #-}
4+let BULLKey = "BULLId"
5+
6+let BEARKey = "BEARId"
7+
8+let mainTokenKey = "mainTokenId"
9+
10+let oraclePKKey = "oracle"
11+
12+let oracleCurrentPriceIdKey = "lastPriceId"
13+
14+let lastRebalancePriceIdKey = "lastSettlementPriceId"
15+
16+let bullCollateralKey = "bullCollateral"
17+
18+let bearCollateralKey = "bearCollateral"
19+
20+let bullCirculationKey = "bullCirculation"
21+
22+let bearCirculationKey = "bearCirculation"
23+
24+let bullCol = valueOrErrorMessage(getInteger(this, bullCollateralKey), "no bullCollateralKey")
25+
26+let bearCol = valueOrErrorMessage(getInteger(this, bearCollateralKey), "no bearCollateralKey")
27+
28+let bullCirc = valueOrErrorMessage(getInteger(this, bullCirculationKey), "no bullCirculationKey")
29+
30+let bearCirc = valueOrErrorMessage(getInteger(this, bearCirculationKey), "no bearCirculationKey")
31+
32+let BULL = valueOrErrorMessage(getString(this, BULLKey), "no BULLKey")
33+
34+let BEAR = valueOrErrorMessage(getString(this, BEARKey), "no BEARKey")
35+
36+let mainToken = valueOrErrorMessage(getString(this, mainTokenKey), "no mainTokenKey")
37+
38+let oracle = valueOrErrorMessage(addressFromPublicKey(fromBase58String(valueOrErrorMessage(getString(this, oraclePKKey), "no oraclePKKey"))), "bad oracle address")
39+
40+let rebalancedPriceId = valueOrErrorMessage(getInteger(this, lastRebalancePriceIdKey), "no last rebalance price")
41+
42+let oraclePriceId = valueOrErrorMessage(getInteger(oracle, oracleCurrentPriceIdKey), "bad oracle data")
43+
44+let headPointerKey = "headPointer"
45+
46+let tailPointerKey = "tailPointer"
47+
48+let queueSizeKey = "queueSize"
49+
50+let queueSize = match getInteger(this, queueSizeKey) {
51+ case i: Int =>
52+ i
53+ case _ =>
54+ 0
55+}
56+
57+let headPointer = match getString(this, headPointerKey) {
58+ case s: String =>
59+ s
60+ case _ =>
61+ ""
62+}
63+
64+let tailPointer = match getString(this, tailPointerKey) {
65+ case s: String =>
66+ s
67+ case _ =>
68+ ""
69+}
70+
71+let ISSUE = "ISSUE"
72+
73+let REDEEM = "REDEEM"
74+
75+func buildNewItem (action,amt,token,priceId,invoker) = (((((((((action + "|") + toString(amt)) + "|") + token) + "|") + toString(priceId)) + "|") + invoker) + "|")
76+
77+
78+func enqueue (id,action,amt,token,priceId,invoker) = {
79+ let increaseQueueSize = DataEntry(queueSizeKey, (queueSize + 1))
80+ if ((queueSize == 0))
81+ then {
82+ let itm = buildNewItem(action, amt, token, priceId, invoker)
83+ WriteSet([DataEntry(headPointerKey, id), DataEntry(tailPointerKey, id), DataEntry(id, itm), increaseQueueSize])
84+ }
85+ else {
86+ let prevId = valueOrErrorMessage(getString(this, tailPointerKey), "can't get tail pointer")
87+ let prevItm = split(valueOrErrorMessage(getString(this, prevId), "can't resolve pointer"), "|")
88+ let updatedPrevItm = ((((((((((prevItm[0] + "|") + prevItm[1]) + "|") + prevItm[2]) + "|") + prevItm[3]) + "|") + prevItm[4]) + "|") + id)
89+ let itm = buildNewItem(action, amt, token, priceId, invoker)
90+ WriteSet([DataEntry(prevId, updatedPrevItm), DataEntry(id, itm), DataEntry(tailPointerKey, id), increaseQueueSize])
91+ }
92+ }
93+
94+
95+func dequeue () = if ((queueSize == 0))
96+ then throw("nothing to settle")
97+ else {
98+ let decreaseQueueSize = DataEntry(queueSizeKey, (queueSize - 1))
99+ let isLastElement = (headPointer == tailPointer)
100+ let overwriteTail = DataEntry(tailPointerKey, "")
101+ let data = split(valueOrErrorMessage(getString(this, headPointer), "bad head pointer"), "|")
102+ let action = data[0]
103+ let amt = parseIntValue(data[1])
104+ let token = data[2]
105+ let priceId = parseIntValue(data[3])
106+ let invoker = addressFromStringValue(data[4])
107+ let next = data[5]
108+ if ((rebalancedPriceId > priceId))
109+ then throw(((("corrupt state, rebalancedPriceId=" + toString(rebalancedPriceId)) + ", request price id=") + toString(priceId)))
110+ else if ((priceId > rebalancedPriceId))
111+ then throw("can't dequeue, too early, rebalance first")
112+ else if ((action == ISSUE))
113+ then {
114+ let addedCollateral = amt
115+ if ((token == BULL))
116+ then {
117+ let addedToCirculation = fraction(bullCirc, addedCollateral, bullCol)
118+ let items = [DataEntry(bullCollateralKey, (bullCol + addedCollateral)), DataEntry(bullCirculationKey, (bullCirc + addedToCirculation)), DataEntry(headPointerKey, next), decreaseQueueSize]
119+ ScriptResult(WriteSet(if (isLastElement)
120+ then overwriteTail :: items
121+ else items), TransferSet([ScriptTransfer(invoker, addedToCirculation, fromBase58String(BULL))]))
122+ }
123+ else if ((token == BEAR))
124+ then {
125+ let addedToCirculation = fraction(bearCirc, addedCollateral, bearCol)
126+ let items = [DataEntry(bearCollateralKey, (bearCol + addedCollateral)), DataEntry(bearCirculationKey, (bearCirc + addedToCirculation)), DataEntry(headPointerKey, next), decreaseQueueSize]
127+ ScriptResult(WriteSet(if (isLastElement)
128+ then overwriteTail :: items
129+ else items), TransferSet([ScriptTransfer(invoker, addedToCirculation, fromBase58String(BEAR))]))
130+ }
131+ else throw("bad token id")
132+ }
133+ else if ((action == REDEEM))
134+ then {
135+ let removedTokens = amt
136+ if ((token == BULL))
137+ then {
138+ let removedCollateral = fraction(bullCol, removedTokens, bullCirc)
139+ let items = [DataEntry(bullCollateralKey, (bullCol - removedCollateral)), DataEntry(bullCirculationKey, (bullCirc - removedTokens)), DataEntry(headPointerKey, next), decreaseQueueSize]
140+ ScriptResult(WriteSet(if (isLastElement)
141+ then overwriteTail :: items
142+ else items), TransferSet([ScriptTransfer(invoker, removedCollateral, fromBase58String(mainToken))]))
143+ }
144+ else if ((token == BEAR))
145+ then {
146+ let removedCollateral = fraction(bearCol, removedTokens, bearCirc)
147+ let items = [DataEntry(bearCollateralKey, (bearCol - removedCollateral)), DataEntry(bearCirculationKey, (bearCirc - removedTokens)), DataEntry(headPointerKey, next), decreaseQueueSize]
148+ ScriptResult(WriteSet(if (isLastElement)
149+ then overwriteTail :: items
150+ else items), TransferSet([ScriptTransfer(invoker, removedCollateral, fromBase58String(mainToken))]))
151+ }
152+ else throw("bad token id")
153+ }
154+ else throw(("bad action: " + action))
155+ }
156+
157+
158+func rebalance () = {
159+ func LV (v,p0,p1) = {
160+ let denom = 100
161+ let pmax = ((if ((p1 > p0))
162+ then p1
163+ else p0) / denom)
164+ let pmin = ((if ((p0 > p1))
165+ then p1
166+ else p0) / denom)
167+ let a = (pmin * pmin)
168+ let b = (((9 * pmax) * pmax) - ((15 * pmax) * pmin))
169+ fraction(v, ((6 * a) + b), ((7 * a) + b))
170+ }
171+
172+ let settledPriceId = valueOrErrorMessage(getInteger(this, lastRebalancePriceIdKey), "inconsistent data")
173+ let unsettledPriceId = (settledPriceId + 1)
174+ let settledPrice = valueOrErrorMessage(getInteger(oracle, toString(settledPriceId)), "bad oracle data for sellted price")
175+ let nextPrice = valueOrErrorMessage(getInteger(oracle, toString(unsettledPriceId)), "no next price")
176+ let minVol = if ((bearCol > bullCol))
177+ then bullCol
178+ else bearCol
179+ let redist = LV(minVol, settledPrice, nextPrice)
180+ if ((nextPrice > settledPrice))
181+ then WriteSet([DataEntry(bullCollateralKey, (bullCol + redist)), DataEntry(bearCollateralKey, (bearCol - redist)), DataEntry(lastRebalancePriceIdKey, unsettledPriceId)])
182+ else if ((settledPrice > nextPrice))
183+ then WriteSet([DataEntry(bullCollateralKey, (bullCol - redist)), DataEntry(bearCollateralKey, (bearCol + redist)), DataEntry(lastRebalancePriceIdKey, unsettledPriceId)])
184+ else WriteSet([DataEntry(lastRebalancePriceIdKey, unsettledPriceId)])
185+ }
186+
187+
188+@Callable(inv)
189+func init (bullId,bearId,mainTokenId,oraclePK) = if (isDefined(getString(this, BULLKey)))
190+ then throw("already initialized")
191+ else if (!(isDefined(inv.payment)))
192+ then throw("neutrino payment required")
193+ else if ((toBase58String(valueOrErrorMessage(value(inv.payment).assetId, "neutrino payment required")) != mainTokenId))
194+ then throw("payment not in neutrino")
195+ else {
196+ let totalOwnedMainToken = value(inv.payment).amount
197+ let bulls = (totalOwnedMainToken / 2)
198+ let bears = (totalOwnedMainToken - bulls)
199+ if (if ((bears == 0))
200+ then true
201+ else (bulls == 0))
202+ then throw("can't init balances")
203+ else {
204+ let oracleCurrentPriceId = valueOrErrorMessage(getInteger(valueOrErrorMessage(addressFromPublicKey(fromBase58String(oraclePK)), "bad oracle address"), oracleCurrentPriceIdKey), "can't find oracle price id")
205+ ScriptResult(WriteSet([DataEntry(BULLKey, bullId), DataEntry(BEARKey, bearId), DataEntry(mainTokenKey, mainTokenId), DataEntry(oraclePKKey, oraclePK), DataEntry(bullCollateralKey, bulls), DataEntry(bearCollateralKey, bears), DataEntry(bullCirculationKey, bulls), DataEntry(bearCirculationKey, bears), DataEntry(lastRebalancePriceIdKey, oracleCurrentPriceId)]), TransferSet([ScriptTransfer(inv.caller, bulls, fromBase58String(bullId)), ScriptTransfer(inv.caller, bears, fromBase58String(bearId))]))
206+ }
207+ }
208+
209+
210+
211+@Callable(inv)
212+func requestRedeem () = if ((inv.caller == this))
213+ then throw("can't do")
214+ else {
215+ func errorMessage (got) = throw(((((("only BULL(" + BULL) + ") or BEAR(") + BEAR) + ") tokens are accepted, received: ") + got))
216+
217+ if (!(isDefined(inv.payment)))
218+ then errorMessage("no attached payment")
219+ else {
220+ let assetId = toBase58String(valueOrErrorMessage(value(inv.payment).assetId, "waves are not accepted here"))
221+ if (if ((assetId != BEAR))
222+ then (assetId != BULL)
223+ else false)
224+ then errorMessage(assetId)
225+ else enqueue(toBase58String(inv.transactionId), REDEEM, value(inv.payment).amount, assetId, (oraclePriceId + 1), toString(inv.caller))
226+ }
227+ }
228+
229+
230+
231+@Callable(inv)
232+func requestIssue (tokenId) = if ((inv.caller == this))
233+ then throw("can't do")
234+ else {
235+ let errorMessage = throw((((((("only BULL(" + BULL) + ") or BEAR(") + BEAR) + ") tokens are available in exchange for USDN(") + mainToken) + ")"))
236+ if (if ((tokenId != BULL))
237+ then (tokenId != BEAR)
238+ else false)
239+ then errorMessage
240+ else if (!(isDefined(inv.payment)))
241+ then errorMessage
242+ else if ((value(inv.payment).assetId != fromBase58String(mainToken)))
243+ then errorMessage
244+ else enqueue(toBase58String(inv.transactionId), ISSUE, value(inv.payment).amount, tokenId, (oraclePriceId + 1), toString(inv.caller))
245+ }
246+
247+
248+
249+@Callable(inv)
250+func settle () = {
251+ let queueEmpty = (headPointer == "")
252+ let canRebalance = (oraclePriceId > rebalancedPriceId)
253+ if (queueEmpty)
254+ then if (canRebalance)
255+ then rebalance()
256+ else throw("[OK] all done, carry on")
257+ else {
258+ let data = split(valueOrErrorMessage(getString(this, headPointer), "bad head pointer"), "|")
259+ let priceId = parseIntValue(data[3])
260+ if ((priceId > rebalancedPriceId))
261+ then if (canRebalance)
262+ then rebalance()
263+ else throw("[OK] need to wait")
264+ else if ((priceId == rebalancedPriceId))
265+ then dequeue()
266+ else throw("corrupt data, future price id already rebalanced")
267+ }
268+ }
269+
270+

github/deemru/w8io/3ef1775 
34.64 ms