tx · F7q6VDXsJdmLz5PEwss27dK14xz9FWgWg2ZvyhzNc79m

3N313C4z4RbEC616WHLeVRpGQkoxaGWrdtM:  -0.01000000 Waves

2019.08.14 09:35 [630387] smart account 3N313C4z4RbEC616WHLeVRpGQkoxaGWrdtM > SELF 0.00000000 Waves

{
    "type": 13,
    "id": "F7q6VDXsJdmLz5PEwss27dK14xz9FWgWg2ZvyhzNc79m",
    "fee": 1000000,
    "feeAssetId": null,
    "timestamp": 1565764500388,
    "version": 1,
    "sender": "3N313C4z4RbEC616WHLeVRpGQkoxaGWrdtM",
    "senderPublicKey": "AWzwkpZ5dYGDGavkFVy562SJPRsa9koEzroPmPk9EYzh",
    "proofs": [
        "2g6cpoH3gPoBvcuhyAtM2JrEJx3M2oyyxD4B788gbkAXfeMG5nXbWVymrjSW3tzXYgsrss4aZLepyZEGBGsBYXwV"
    ],
    "script": "base64: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    "chainId": 84,
    "height": 630387,
    "spentComplexity": 0
}

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Full: 

OldNewDifferences
1-# no script
1+{-# STDLIB_VERSION 3 #-}
2+{-# SCRIPT_TYPE ACCOUNT #-}
3+{-# CONTENT_TYPE DAPP #-}
4+let depositToken = unit
5+
6+let oracleDataKey = "waves_btc_8"
7+
8+let gracePeriodKey = "gracePeriod"
9+
10+let interestPeriodKey = "interestPeriod"
11+
12+let oracleKey = "oracle"
13+
14+let discountPercentileKey = "discountPercentile"
15+
16+let maxRateKey = "maxRate"
17+
18+let assetTokenKey = "assetToken"
19+
20+let ownerKey = "owner"
21+
22+func startOf (renter) = ("start_of_" + renter)
23+
24+
25+func endOfGraceOf (renter) = ("end_of_grace_of_" + renter)
26+
27+
28+func endOfFreezeOf (renter) = ("end_of_freeze_of_" + renter)
29+
30+
31+func rateOf (renter) = ("rate_of_" + renter)
32+
33+
34+func depositOf (renter) = ("deposit_of_" + renter)
35+
36+
37+func lendAmount (renter) = ("lend_of_" + renter)
38+
39+
40+func registeredTx (txId) = ("registered_return_of_" + txId)
41+
42+
43+let owner = addressFromStringValue(value(getString(this, ownerKey)))
44+
45+let assetToken = fromBase58String(value(getString(this, assetTokenKey)))
46+
47+let gracePeriod = value(getInteger(this, gracePeriodKey))
48+
49+let interestPeriod = value(getInteger(this, interestPeriodKey))
50+
51+let maxRate = value(getInteger(this, maxRateKey))
52+
53+let oracle = value(getString(this, oracleKey))
54+
55+let oracleValue = value(getInteger(value(addressFromString(oracle)), oracleDataKey))
56+
57+let discountPercentile = value(getInteger(this, discountPercentileKey))
58+
59+let rate = if ((maxRate >= oracleValue))
60+    then oracleValue
61+    else throw(((("Suspicious rate value: actual: " + toString(oracleValue)) + ", max: ") + toString(maxRate)))
62+
63+let initialized = isDefined(getString(this, assetTokenKey))
64+
65+func isLendOpen (renter) = match getInteger(this, startOf(renter)) {
66+    case s: Int => 
67+        (s > 0)
68+    case _ => 
69+        false
70+}
71+
72+
73+func closing (renter) = WriteSet([DataEntry(startOf(renter), 0), DataEntry(endOfGraceOf(renter), 0), DataEntry(endOfFreezeOf(renter), 0), DataEntry(rateOf(renter), 0), DataEntry(depositOf(renter), 0), DataEntry(lendAmount(renter), 0)])
74+
75+
76+func closeExpired (address) = {
77+    let loanSize = value(getInteger(this, depositOf(address)))
78+    ScriptResult(closing(address), TransferSet([ScriptTransfer(owner, loanSize, depositToken)]))
79+    }
80+
81+
82+func doBB (renter,returnAssetId,returnAmt) = {
83+    let renterStr = toString(renter)
84+    let hasOpenLoan = isLendOpen(renterStr)
85+    let isTokenCorrect = (returnAssetId == assetToken)
86+    let loanAmount = getIntegerValue(this, lendAmount(renterStr))
87+    let isAmountCorrect = (loanAmount == returnAmt)
88+    let depositedValue = getIntegerValue(this, depositOf(renterStr))
89+    if (!(hasOpenLoan))
90+        then throw("No open loan for caller")
91+        else if (!(isTokenCorrect))
92+            then throw(((("User must return WBTC: " + toBase58String(assetToken)) + " but returning: ") + toBase58String(returnAssetId)))
93+            else if (!(isAmountCorrect))
94+                then throw(((("User must return " + toString(loanAmount)) + " WBTC, but returning ") + toString(returnAmt)))
95+                else {
96+                    let graceHeight = getIntegerValue(this, endOfGraceOf(renterStr))
97+                    let expirationHeight = getIntegerValue(this, endOfFreezeOf(renterStr))
98+                    let canReturnFullAmount = (graceHeight >= height)
99+                    let returnAmount = if (canReturnFullAmount)
100+                        then depositedValue
101+                        else if ((height > expirationHeight))
102+                            then throw("your loan has expired")
103+                            else fraction(depositedValue, (expirationHeight - height), (expirationHeight - graceHeight))
104+                    let theRestOfAmount = (depositedValue - returnAmount)
105+                    ScriptResult(closing(renterStr), TransferSet([ScriptTransfer(renter, returnAmount, depositToken), ScriptTransfer(owner, theRestOfAmount, depositToken)]))
106+                    }
107+    }
108+
109+
110+@Callable(i)
111+func init (owner,token,oracle,maxRate,discount,grace,interest) = if ((i.caller == this))
112+    then WriteSet([DataEntry(ownerKey, owner), DataEntry(discountPercentileKey, discount), DataEntry(assetTokenKey, token), DataEntry(oracleKey, oracle), DataEntry(maxRateKey, maxRate), DataEntry(gracePeriodKey, grace), DataEntry(interestPeriodKey, interest)])
113+    else throw("only dapp itself can init")
114+
115+
116+
117+@Callable(i)
118+func updateParams (oracle,maxRate,discount,grace,interest) = if ((i.caller == owner))
119+    then WriteSet([DataEntry(oracleKey, oracle), DataEntry(maxRateKey, maxRate), DataEntry(discountPercentileKey, discount), DataEntry(gracePeriodKey, grace), DataEntry(interestPeriodKey, interest)])
120+    else throw("only contract owner can update params")
121+
122+
123+
124+@Callable(i)
125+func borrow () = {
126+    let renter = toBase58String(i.caller.bytes)
127+    if (isLendOpen(renter))
128+        then throw((renter + " already has an open loan"))
129+        else         match i.payment {
130+            case a: AttachedPayment => 
131+                if ((a.assetId == depositToken))
132+                    then {
133+                        let currentHeight = height
134+                        let graceHeight = (height + gracePeriod)
135+                        let expirationHeight = (graceHeight + interestPeriod)
136+                        let depositAmount = a.amount
137+                        let assetTokensLent = fraction((a.amount / rate), discountPercentile, 100)
138+                        let datas = WriteSet([DataEntry(startOf(renter), currentHeight), DataEntry(endOfGraceOf(renter), graceHeight), DataEntry(endOfFreezeOf(renter), expirationHeight), DataEntry(rateOf(renter), fraction(rate, 100, discountPercentile)), DataEntry(depositOf(renter), depositAmount), DataEntry(lendAmount(renter), assetTokensLent)])
139+                        ScriptResult(datas, TransferSet([ScriptTransfer(i.caller, assetTokensLent, assetToken)]))
140+                        }
141+                    else throw(("can only lend WBTC for WAVES, but got " + toBase58String(value(a.assetId))))
142+            case _ => 
143+                throw("payment in assetTokens must be attached")
144+        }
145+    }
146+
147+
148+
149+@Callable(i)
150+func restoreBuyBack (txId) = match transferTransactionById(fromBase58String(txId)) {
151+    case t: TransferTransaction => 
152+        match getBoolean(this, registeredTx(txId)) {
153+            case b: Boolean => 
154+                throw((("Tx id " + txId) + " has already been registered"))
155+            case _ => 
156+                if ((t.recipient != this))
157+                    then throw("Can only register payments for this dapp address")
158+                    else {
159+                        let sr = doBB(t.sender, value(t.assetId), t.amount)
160+                        ScriptResult(WriteSet([DataEntry(registeredTx(txId), true), sr.writeSet.data]), sr.transferSet)
161+                        }
162+        }
163+    case _: Unit => 
164+        throw("Transaction doesn't exist")
165+    case _ => 
166+        throw()
167+}
168+
169+
170+
171+@Callable(i)
172+func buyBack () = doBB(i.caller, value(value(i.payment).assetId), value(i.payment).amount)
173+
174+
175+
176+@Callable(i)
177+func closeExpiredFor (address) = {
178+    let expiryHeight = value(getInteger(this, endOfFreezeOf(address)))
179+    let loanExpired = (height > expiryHeight)
180+    let ownerCall = (i.caller == owner)
181+    if (!(ownerCall))
182+        then throw("Only owner can close expired rent of a user")
183+        else if (!(loanExpired))
184+            then throw(((("Owner can only close expired rents. Expiring on height " + toString(expiryHeight)) + ", current height") + toString(height)))
185+            else closeExpired(address)
186+    }
187+
188+
189+
190+@Callable(i)
191+func discard () = {
192+    let address = toBase58String(i.caller.bytes)
193+    closeExpired(address)
194+    }
195+
196+
197+
198+@Callable(i)
199+func withdraw (amount) = if ((i.caller == owner))
200+    then TransferSet([ScriptTransfer(owner, amount, assetToken)])
201+    else throw("only owner can withdraw WBTC")
202+
203+
github/deemru/w8io/3ef1775 
32.46 ms ◑