tx · 4iq91r5FH6FxZgkbyctTRDgh7cbhSa9Mc8Yn4Lezjg52

3N7xypnjMJoEB7gGQP8kaiRsLAgKLpMZc69:  -0.01000000 Waves

2019.06.22 13:26 [553114] smart account 3N7xypnjMJoEB7gGQP8kaiRsLAgKLpMZc69 > SELF 0.00000000 Waves

{
    "type": 13,
    "id": "4iq91r5FH6FxZgkbyctTRDgh7cbhSa9Mc8Yn4Lezjg52",
    "fee": 1000000,
    "feeAssetId": null,
    "timestamp": 1561199206711,
    "version": 1,
    "sender": "3N7xypnjMJoEB7gGQP8kaiRsLAgKLpMZc69",
    "senderPublicKey": "6DTQHSDi4mm7GvT75uZaxDcGvPdRqjXxMsisMk1sVmXR",
    "proofs": [
        "2wEJfirDoPYntNbAnFNR4z8FhaeGkJow5h7YynAEkMjXaAPhuzxCxkSfHg6engBjz3BwkgxTWiCBPYCtvqdeGUof"
    ],
    "script": 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    "chainId": 84,
    "height": 553114,
    "spentComplexity": 0
}

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OldNewDifferences
1-# no script
1+{-# STDLIB_VERSION 3 #-}
2+{-# SCRIPT_TYPE ACCOUNT #-}
3+{-# CONTENT_TYPE DAPP #-}
4+let IdxPrice = 0
5+
6+let IdxAmount = 1
7+
8+let IdxTradePair = 2
9+
10+let IdxOrderType = 3
11+
12+let IdxSender = 4
13+
14+let IdxAssetId = 5
15+
16+let BUY = "BUY"
17+
18+let SELL = "SELL"
19+
20+func RemoveUnderscoreIfPresent (remaining) = if ((size(remaining) > 0))
21+    then drop(remaining, 1)
22+    else remaining
23+
24+
25+func FormatDataParam (p) = {
26+    let s = size(p)
27+    if ((s == 0))
28+        then throw("Parameter size must be greater then 0")
29+        else if ((s > 99))
30+            then throw("Parameter size must be less then 100")
31+            else if ((10 > s))
32+                then (("0" + toString(s)) + p)
33+                else (toString(s) + p)
34+    }
35+
36+
37+func ParseNextAttribute (remaining) = {
38+    let s = size(remaining)
39+    if ((s > 0))
40+        then {
41+            let nn = parseIntValue(take(remaining, 2))
42+            let v = take(drop(remaining, 2), nn)
43+            let tmpRemaining = drop(remaining, (nn + 2))
44+            let remainingState = RemoveUnderscoreIfPresent(tmpRemaining)
45+[v, remainingState]
46+            }
47+        else throw("Empty string was passed into parseNextAttribute func")
48+    }
49+
50+
51+func FormatOrderDataStr (traidPair,sender,orderType,price,amount,assetId) = {
52+    let fullStateStr = ((((((((((FormatDataParam(traidPair) + "_") + FormatDataParam(sender)) + "_") + FormatDataParam(orderType)) + "_") + FormatDataParam(toString(price))) + "_") + FormatDataParam(toString(amount))) + "_") + FormatDataParam(assetId))
53+    fullStateStr
54+    }
55+
56+
57+func ParseOrderRawDataStr (rawStateStr) = {
58+    let tradePair = ParseNextAttribute(rawStateStr)
59+    let sender = ParseNextAttribute(tradePair[1])
60+    let orderType = ParseNextAttribute(sender[1])
61+    let price = ParseNextAttribute(orderType[1])
62+    let amount = ParseNextAttribute(price[1])
63+    let assetId = ParseNextAttribute(amount[1])
64+[price[0], amount[0], tradePair[0], orderType[0], sender[0], assetId[0]]
65+    }
66+
67+
68+func pow10 (exp) = if ((exp == 0))
69+    then 1
70+    else if ((exp == 1))
71+        then 10
72+        else if ((exp == 2))
73+            then 100
74+            else if ((exp == 3))
75+                then 1000
76+                else if ((exp == 4))
77+                    then 10000
78+                    else if ((exp == 5))
79+                        then 100000
80+                        else if ((exp == 6))
81+                            then 1000000
82+                            else if ((exp == 7))
83+                                then 10000000
84+                                else if ((exp == 8))
85+                                    then 100000000
86+                                    else if ((exp == 9))
87+                                        then 1000000000
88+                                        else if ((exp == 10))
89+                                            then 10000000000
90+                                            else if ((exp == 11))
91+                                                then 100000000000
92+                                                else if ((exp == 12))
93+                                                    then 1000000000000
94+                                                    else throw("Pow10 more then 12 is not supported")
95+
96+
97+func assetIdFromString (assetId) = if (if ((assetId == "WAVES"))
98+    then true
99+    else (assetId == ""))
100+    then unit
101+    else fromBase58String(assetId)
102+
103+
104+@Callable(i)
105+func order (assetId,price) = {
106+    let pmt = extract(i.payment)
107+    let pmtAssetIdStr = if (isDefined(pmt.assetId))
108+        then toBase58String(value(pmt.assetId))
109+        else "WAVES"
110+    let possibleTraidPair1 = getString(this, ((assetId + "/") + pmtAssetIdStr))
111+    let possibleTraidPair2 = getString(this, ((pmtAssetIdStr + "/") + assetId))
112+    let traidPair = if (isDefined(possibleTraidPair1))
113+        then value(possibleTraidPair1)
114+        else if (isDefined(possibleTraidPair2))
115+            then value(possibleTraidPair2)
116+            else throw("Traiding for that assets is not supported")
117+    let orderType = if (isDefined(possibleTraidPair1))
118+        then BUY
119+        else SELL
120+    let orderStr = FormatOrderDataStr(traidPair, toBase58String(i.caller.bytes), orderType, price, pmt.amount, assetId)
121+    WriteSet([DataEntry(toBase58String(i.transactionId), orderStr)])
122+    }
123+
124+
125+
126+@Callable(i)
127+func matchOrders (order1Id,order2Id) = {
128+    let order1 = ParseOrderRawDataStr(getStringValue(this, order1Id))
129+    let order2 = ParseOrderRawDataStr(getStringValue(this, order2Id))
130+    if ((order1[IdxTradePair] != order2[IdxTradePair]))
131+        then throw("Trying to match orders from different trading pairs")
132+        else if ((order1[IdxOrderType] == order2[IdxOrderType]))
133+            then throw("Trying to match orders of the same type")
134+            else {
135+                let order1isSell = (order1[IdxOrderType] == SELL)
136+                let sellOrder = if (order1isSell)
137+                    then order1
138+                    else order2
139+                let buyOrder = if (!(order1isSell))
140+                    then order1
141+                    else order2
142+                let sellPrice = parseIntValue(sellOrder[IdxPrice])
143+                let buyPrice = parseIntValue(buyOrder[IdxPrice])
144+                let sellOrderAmount = parseIntValue(sellOrder[IdxAmount])
145+                let buyOrderAmount = parseIntValue(buyOrder[IdxAmount])
146+                if ((sellPrice > buyPrice))
147+                    then throw("Orders are not match by price")
148+                    else {
149+                        let exchangePrice = sellPrice
150+                        let amountAssetDecimals = if ((buyOrder[IdxAssetId] == "WAVES"))
151+                            then 8
152+                            else value(assetInfo(value(assetIdFromString(buyOrder[IdxAssetId])))).decimals
153+                        let priceAssetDecimals = if ((sellOrder[IdxAssetId] == "WAVES"))
154+                            then 8
155+                            else value(assetInfo(value(assetIdFromString(sellOrder[IdxAssetId])))).decimals
156+                        let buyAmount = ((buyOrderAmount * pow10(amountAssetDecimals)) / exchangePrice)
157+                        let sellAmount = sellOrderAmount
158+                        let amountAssetAmount = if ((buyAmount >= sellAmount))
159+                            then sellAmount
160+                            else buyAmount
161+                        let priceAssetAmount = ((amountAssetAmount * exchangePrice) / pow10(amountAssetDecimals))
162+                        let updatedBuyStr = FormatOrderDataStr(buyOrder[IdxTradePair], buyOrder[IdxSender], buyOrder[IdxOrderType], buyPrice, (buyOrderAmount - priceAssetAmount), buyOrder[IdxAssetId])
163+                        let updatedSellStr = FormatOrderDataStr(sellOrder[IdxTradePair], sellOrder[IdxSender], sellOrder[IdxOrderType], sellPrice, (sellOrderAmount - amountAssetAmount), sellOrder[IdxAssetId])
164+                        ScriptResult(WriteSet([DataEntry(if (!(order1isSell))
165+                            then order1Id
166+                            else order2Id, updatedBuyStr), DataEntry(if (order1isSell)
167+                            then order1Id
168+                            else order2Id, updatedSellStr)]), TransferSet([ScriptTransfer(addressFromStringValue(buyOrder[IdxSender]), amountAssetAmount, assetIdFromString(buyOrder[IdxAssetId])), ScriptTransfer(addressFromStringValue(sellOrder[IdxSender]), priceAssetAmount, assetIdFromString(sellOrder[IdxAssetId]))]))
169+                        }
170+                }
171+    }
172+
173+
174+
175+@Callable(i)
176+func registerTraidPair (asset1,priceAsset,traidPair) = WriteSet([DataEntry(((asset1 + "/") + priceAsset), traidPair)])
177+
178+
github/deemru/w8io/026f985 
31.55 ms ◑