290 lines
35 KiB
JSON
290 lines
35 KiB
JSON
{
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"address": "0x7ac886207F1fea709117b73B8c1e97c40f46ad9c",
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"abi": [
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{
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"inputs": [],
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"stateMutability": "nonpayable",
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"type": "constructor"
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},
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{
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"inputs": [],
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"name": "EmptyArray",
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"type": "error"
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},
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{
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"inputs": [],
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"name": "IndexOutOfBounds",
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"type": "error"
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},
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{
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"inputs": [],
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"name": "NoOraclesAvailable",
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"type": "error"
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},
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{
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"inputs": [],
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"name": "OnlyOwner",
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"type": "error"
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},
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{
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"anonymous": false,
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"inputs": [
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{
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"indexed": false,
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"internalType": "address",
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"name": "oracleAddress",
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"type": "address"
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},
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{
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"indexed": false,
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"internalType": "address",
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"name": "oracleOwner",
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"type": "address"
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}
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],
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"name": "OracleAdded",
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"type": "event"
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},
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{
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"anonymous": false,
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"inputs": [
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{
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"indexed": false,
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"internalType": "address",
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"name": "oracleAddress",
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"type": "address"
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}
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],
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"name": "OracleRemoved",
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"type": "event"
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},
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{
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"inputs": [],
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"name": "STALE_DATA_WINDOW",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "address",
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"name": "_owner",
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"type": "address"
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}
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],
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"name": "addOracle",
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"outputs": [],
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "getActiveOracleNodes",
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"outputs": [
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{
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"internalType": "address[]",
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"name": "",
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"type": "address[]"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "getPrice",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
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"name": "oracles",
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"outputs": [
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{
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"internalType": "contract SimpleOracle",
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"name": "",
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"type": "address"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [],
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"name": "owner",
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"outputs": [
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{
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"internalType": "address",
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"name": "",
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"type": "address"
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}
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],
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"stateMutability": "view",
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"type": "function"
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},
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{
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"inputs": [
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{
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"internalType": "uint256",
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"name": "index",
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"type": "uint256"
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}
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],
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"name": "removeOracle",
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"outputs": [],
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"stateMutability": "nonpayable",
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"type": "function"
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}
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],
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"transactionHash": "0xe7bf1985a4ac083403429b91d04d1af6150ae59448ce8596d5d250d548a9be41",
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"receipt": {
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"to": null,
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"from": "0x23E53302800Ccd8a5b35cFA576B6eB73dab297B4",
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"contractAddress": "0x7ac886207F1fea709117b73B8c1e97c40f46ad9c",
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"transactionIndex": 48,
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"gasUsed": "814772",
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"logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
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"blockHash": "0x89d50c2a3b549d5c8f917f8992f3a50b9462aca2cc76f37840aef9d6012b291c",
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"transactionHash": "0xe7bf1985a4ac083403429b91d04d1af6150ae59448ce8596d5d250d548a9be41",
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"logs": [],
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"blockNumber": 10119858,
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"cumulativeGasUsed": "18978613",
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"status": 1,
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"byzantium": true
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},
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"args": [],
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"numDeployments": 1,
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"solcInputHash": "5ddadefd5b01c44dd0bbf987b1598ce3",
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"metadata": "{\"compiler\":{\"version\":\"0.8.20+commit.a1b79de6\"},\"language\":\"Solidity\",\"output\":{\"abi\":[{\"inputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"inputs\":[],\"name\":\"EmptyArray\",\"type\":\"error\"},{\"inputs\":[],\"name\":\"IndexOutOfBounds\",\"type\":\"error\"},{\"inputs\":[],\"name\":\"NoOraclesAvailable\",\"type\":\"error\"},{\"inputs\":[],\"name\":\"OnlyOwner\",\"type\":\"error\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"oracleAddress\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"address\",\"name\":\"oracleOwner\",\"type\":\"address\"}],\"name\":\"OracleAdded\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"internalType\":\"address\",\"name\":\"oracleAddress\",\"type\":\"address\"}],\"name\":\"OracleRemoved\",\"type\":\"event\"},{\"inputs\":[],\"name\":\"STALE_DATA_WINDOW\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"_owner\",\"type\":\"address\"}],\"name\":\"addOracle\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getActiveOracleNodes\",\"outputs\":[{\"internalType\":\"address[]\",\"name\":\"\",\"type\":\"address[]\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"getPrice\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"name\":\"oracles\",\"outputs\":[{\"internalType\":\"contract SimpleOracle\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"owner\",\"outputs\":[{\"internalType\":\"address\",\"name\":\"\",\"type\":\"address\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"uint256\",\"name\":\"index\",\"type\":\"uint256\"}],\"name\":\"removeOracle\",\"outputs\":[],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}],\"devdoc\":{\"kind\":\"dev\",\"methods\":{\"addOracle(address)\":{\"details\":\"Creates a new SimpleOracle instance and adds it to the oracles array.\",\"params\":{\"_owner\":\"The address that will own the newly created oracle and can update its price\"}},\"getActiveOracleNodes()\":{\"details\":\"Iterates through all oracles and filters those with recent timestamps (within STALE_DATA_WINDOW). Uses a temporary array to collect active nodes, then creates a right-sized return array for gas optimization.\",\"returns\":{\"_0\":\"An array of addresses representing the currently active oracle contracts\"}},\"getPrice()\":{\"details\":\"Filters oracles with timestamps older than STALE_DATA_WINDOW, then calculates median of remaining valid prices. Uses StatisticsUtils for sorting and median calculation.\",\"returns\":{\"_0\":\"The median price from all active oracles\"}},\"removeOracle(uint256)\":{\"details\":\"Uses swap-and-pop pattern for gas-efficient removal. Order is not preserved. Reverts with IndexOutOfBounds, if the provided index is >= oracles.length.\",\"params\":{\"index\":\"The index of the oracle to remove from the oracles array\"}}},\"version\":1},\"userdoc\":{\"errors\":{\"EmptyArray()\":[{\"notice\":\"Errors //////\"}],\"OnlyOwner()\":[{\"notice\":\"Errors //////\"}]},\"events\":{\"OracleAdded(address,address)\":{\"notice\":\"Events /////\"}},\"kind\":\"user\",\"methods\":{\"addOracle(address)\":{\"notice\":\"Adds a new oracle to the whitelist by deploying a SimpleOracle contract (only contract owner)\"},\"constructor\":{\"notice\":\"Constructor ///\"},\"getActiveOracleNodes()\":{\"notice\":\"Returns the addresses of all oracles that have updated their price within the last STALE_DATA_WINDOW\"},\"getPrice()\":{\"notice\":\"Returns the aggregated price from all active oracles using median calculation\"},\"owner()\":{\"notice\":\"State Variables //\"},\"removeOracle(uint256)\":{\"notice\":\"Removes an oracle from the whitelist by its array index (only contract owner)\"}},\"version\":1}},\"settings\":{\"compilationTarget\":{\"contracts/00_Whitelist/WhitelistOracle.sol\":\"WhitelistOracle\"},\"evmVersion\":\"paris\",\"libraries\":{},\"metadata\":{\"bytecodeHash\":\"ipfs\",\"useLiteralContent\":true},\"optimizer\":{\"enabled\":true,\"runs\":200},\"remappings\":[]},\"sources\":{\"contracts/00_Whitelist/SimpleOracle.sol\":{\"content\":\"//SPDX-License-Identifier: MIT\\npragma solidity >=0.8.0 <0.9.0;\\n\\ncontract SimpleOracle {\\n /////////////////\\n /// Errors //////\\n /////////////////\\n\\n error OnlyOwner();\\n\\n //////////////////////\\n /// State Variables //\\n //////////////////////\\n\\n uint256 public price;\\n uint256 public timestamp;\\n address public owner;\\n\\n ////////////////\\n /// Events /////\\n ////////////////\\n\\n event PriceUpdated(uint256 newPrice);\\n\\n ///////////////////\\n /// Constructor ///\\n ///////////////////\\n\\n constructor(address _owner) {\\n owner = _owner;\\n }\\n\\n ///////////////////\\n /// Modifiers /////\\n ///////////////////\\n\\n /**\\n * @notice Modifier to restrict function access to the contract owner\\n * @dev Currently disabled to make it easy for you to impersonate the owner\\n */\\n modifier onlyOwner() {\\n // Intentionally removing the owner requirement to make it easy for you to impersonate the owner\\n // if (msg.sender != owner) revert OnlyOwner();\\n _;\\n }\\n\\n ///////////////////\\n /// Functions /////\\n ///////////////////\\n\\n /**\\n * @notice Updates the oracle price with a new value (only contract owner)\\n * @dev Sets the price and records the current block timestamp for freshness tracking.\\n * Emits PriceUpdated event upon successful update.\\n * @param _newPrice The new price value to set for this oracle\\n */\\n function setPrice(uint256 _newPrice) public onlyOwner {\\n price = _newPrice;\\n timestamp = block.timestamp;\\n emit PriceUpdated(_newPrice);\\n }\\n\\n /**\\n * @notice Returns the current price and its timestamp\\n * @dev Provides both the stored price value and when it was last updated.\\n * Used by aggregators to determine price freshness.\\n * @return price The current price stored in this oracle\\n * @return timestamp The block timestamp when the price was last updated\\n */\\n function getPrice() public view returns (uint256, uint256) {\\n return (price, timestamp);\\n }\\n}\\n\",\"keccak256\":\"0xf7824e681abc476a008bc4aa06b41e0c9d54e3a84db98ae142dae10eb022275b\",\"license\":\"MIT\"},\"contracts/00_Whitelist/WhitelistOracle.sol\":{\"content\":\"//SPDX-License-Identifier: MIT\\npragma solidity >=0.8.0 <0.9.0;\\n\\nimport \\\"./SimpleOracle.sol\\\";\\nimport { StatisticsUtils } from \\\"../utils/StatisticsUtils.sol\\\";\\n\\ncontract WhitelistOracle {\\n using StatisticsUtils for uint256[];\\n\\n /////////////////\\n /// Errors //////\\n /////////////////\\n\\n error OnlyOwner();\\n error IndexOutOfBounds();\\n error NoOraclesAvailable();\\n\\n //////////////////////\\n /// State Variables //\\n //////////////////////\\n\\n address public owner;\\n SimpleOracle[] public oracles;\\n uint256 public constant STALE_DATA_WINDOW = 24 seconds;\\n\\n ////////////////\\n /// Events /////\\n ////////////////\\n\\n event OracleAdded(address oracleAddress, address oracleOwner);\\n event OracleRemoved(address oracleAddress);\\n\\n ///////////////////\\n /// Modifiers /////\\n ///////////////////\\n\\n /**\\n * @notice Modifier to restrict function access to the contract owner\\n * @dev Currently disabled to make it easy for you to impersonate the owner\\n */\\n modifier onlyOwner() {\\n // if (msg.sender != owner) revert OnlyOwner();\\n _;\\n }\\n\\n ///////////////////\\n /// Constructor ///\\n ///////////////////\\n\\n constructor() {\\n owner = msg.sender;\\n }\\n\\n ///////////////////\\n /// Functions /////\\n ///////////////////\\n\\n /**\\n * @notice Adds a new oracle to the whitelist by deploying a SimpleOracle contract (only contract owner)\\n * @dev Creates a new SimpleOracle instance and adds it to the oracles array.\\n * @param _owner The address that will own the newly created oracle and can update its price\\n */\\n function addOracle(address _owner) public onlyOwner {\\n SimpleOracle newOracle = new SimpleOracle(_owner);\\n oracles.push(newOracle);\\n emit OracleAdded(address(newOracle), _owner);\\n }\\n\\n /**\\n * @notice Removes an oracle from the whitelist by its array index (only contract owner)\\n * @dev Uses swap-and-pop pattern for gas-efficient removal. Order is not preserved.\\n * Reverts with IndexOutOfBounds, if the provided index is >= oracles.length.\\n * @param index The index of the oracle to remove from the oracles array\\n */\\n function removeOracle(uint256 index) public onlyOwner {\\n uint256 oraclesSize = oracles.length;\\n if (index >= oraclesSize) revert IndexOutOfBounds();\\n\\n address deletedOracle = address(oracles[index]);\\n if (index != oraclesSize - 1) {\\n oracles[index] = oracles[oraclesSize - 1];\\n }\\n \\n oracles.pop();\\n emit OracleRemoved(deletedOracle);\\n }\\n\\n /**\\n * @notice Returns the aggregated price from all active oracles using median calculation\\n * @dev Filters oracles with timestamps older than STALE_DATA_WINDOW, then calculates median\\n * of remaining valid prices. Uses StatisticsUtils for sorting and median calculation.\\n * @return The median price from all active oracles\\n */\\n function getPrice() public view returns (uint256) {\\n if (oracles.length == 0) revert NoOraclesAvailable();\\n uint256[] memory prices = new uint256[](oracles.length);\\n uint256 priceIndex = 0;\\n uint256 currentTime = block.timestamp;\\n\\n for (uint256 i = 0; i < oracles.length; i++) {\\n (uint256 price, uint256 timestamp) = oracles[i].getPrice();\\n\\tif (currentTime - timestamp < STALE_DATA_WINDOW) {\\n\\t prices[priceIndex] = price;\\n\\t priceIndex++;\\n\\t}\\n }\\n\\n uint256[] memory fixedPrices = new uint256[](priceIndex);\\n for (uint256 i = 0; i < priceIndex; i++) {\\n fixedPrices[i] = prices[i];\\n }\\n\\n fixedPrices.sort();\\n return fixedPrices.getMedian();\\n }\\n\\n /**\\n * @notice Returns the addresses of all oracles that have updated their price within the last STALE_DATA_WINDOW\\n * @dev Iterates through all oracles and filters those with recent timestamps (within STALE_DATA_WINDOW).\\n * Uses a temporary array to collect active nodes, then creates a right-sized return array\\n * for gas optimization.\\n * @return An array of addresses representing the currently active oracle contracts\\n */\\n function getActiveOracleNodes() public view returns (address[] memory) {\\n address[] memory activeOracles = new address[](oracles.length);\\n uint256 oracleIndex = 0;\\n uint256 currentTime = block.timestamp;\\n\\n for (uint256 i = 0; i < oracles.length; i++) {\\n (, uint256 timestamp) = oracles[i].getPrice();\\n\\tif (currentTime - timestamp < STALE_DATA_WINDOW) {\\n\\t activeOracles[oracleIndex] = address(oracles[i]);\\n\\t oracleIndex++;\\n\\t}\\n }\\n\\n address[] memory fixedActiveOracles = new address[](oracleIndex);\\n for (uint256 i = 0; i < oracleIndex; i++) {\\n fixedActiveOracles[i] = activeOracles[i];\\n }\\n\\n return fixedActiveOracles;\\n }\\n}\\n\",\"keccak256\":\"0xf2436dd59b378d3b1a9ec8033beda6fe3cbe21f6d3f5c93b0d982bebd874630e\",\"license\":\"MIT\"},\"contracts/utils/StatisticsUtils.sol\":{\"content\":\"// SPDX-License-Identifier: MIT\\npragma solidity >=0.8.0 <0.9.0;\\n\\nlibrary StatisticsUtils {\\n /////////////////\\n /// Errors //////\\n /////////////////\\n\\n error EmptyArray();\\n\\n ///////////////////\\n /// Functions /////\\n ///////////////////\\n\\n /**\\n * @notice Sorts an array of uint256 values in ascending order using selection sort\\n * @dev Uses selection sort algorithm which is not gas-efficient but acceptable for small arrays.\\n * This implementation mimics the early MakerDAO Medianizer exactly.\\n * Modifies the input array in-place.\\n * @param arr The array of uint256 values to sort in ascending order\\n */\\n function sort(uint256[] memory arr) internal pure {\\n uint256 n = arr.length;\\n for (uint256 i = 0; i < n; i++) {\\n uint256 minIndex = i;\\n for (uint256 j = i + 1; j < n; j++) {\\n if (arr[j] < arr[minIndex]) {\\n minIndex = j;\\n }\\n }\\n if (minIndex != i) {\\n (arr[i], arr[minIndex]) = (arr[minIndex], arr[i]);\\n }\\n }\\n }\\n\\n /**\\n * @notice Calculates the median value from a sorted array of uint256 values\\n * @dev For arrays with even length, returns the average of the two middle elements.\\n * For arrays with odd length, returns the middle element.\\n * Assumes the input array is already sorted in ascending order.\\n * @param arr The sorted array of uint256 values to calculate median from\\n * @return The median value as a uint256\\n */\\n function getMedian(uint256[] memory arr) internal pure returns (uint256) {\\n uint256 length = arr.length;\\n if (length == 0) revert EmptyArray();\\n if (length % 2 == 0) {\\n return (arr[length / 2 - 1] + arr[length / 2]) / 2;\\n } else {\\n return arr[length / 2];\\n }\\n }\\n}\\n\",\"keccak256\":\"0xc0949844270a074ee4289211c32b5e33062343fb5ae282c314a944e344e609cc\",\"license\":\"MIT\"}},\"version\":1}",
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"bytecode": 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"deployedBytecode": 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|
|
"devdoc": {
|
|
"kind": "dev",
|
|
"methods": {
|
|
"addOracle(address)": {
|
|
"details": "Creates a new SimpleOracle instance and adds it to the oracles array.",
|
|
"params": {
|
|
"_owner": "The address that will own the newly created oracle and can update its price"
|
|
}
|
|
},
|
|
"getActiveOracleNodes()": {
|
|
"details": "Iterates through all oracles and filters those with recent timestamps (within STALE_DATA_WINDOW). Uses a temporary array to collect active nodes, then creates a right-sized return array for gas optimization.",
|
|
"returns": {
|
|
"_0": "An array of addresses representing the currently active oracle contracts"
|
|
}
|
|
},
|
|
"getPrice()": {
|
|
"details": "Filters oracles with timestamps older than STALE_DATA_WINDOW, then calculates median of remaining valid prices. Uses StatisticsUtils for sorting and median calculation.",
|
|
"returns": {
|
|
"_0": "The median price from all active oracles"
|
|
}
|
|
},
|
|
"removeOracle(uint256)": {
|
|
"details": "Uses swap-and-pop pattern for gas-efficient removal. Order is not preserved. Reverts with IndexOutOfBounds, if the provided index is >= oracles.length.",
|
|
"params": {
|
|
"index": "The index of the oracle to remove from the oracles array"
|
|
}
|
|
}
|
|
},
|
|
"version": 1
|
|
},
|
|
"userdoc": {
|
|
"errors": {
|
|
"EmptyArray()": [
|
|
{
|
|
"notice": "Errors //////"
|
|
}
|
|
],
|
|
"OnlyOwner()": [
|
|
{
|
|
"notice": "Errors //////"
|
|
}
|
|
]
|
|
},
|
|
"events": {
|
|
"OracleAdded(address,address)": {
|
|
"notice": "Events /////"
|
|
}
|
|
},
|
|
"kind": "user",
|
|
"methods": {
|
|
"addOracle(address)": {
|
|
"notice": "Adds a new oracle to the whitelist by deploying a SimpleOracle contract (only contract owner)"
|
|
},
|
|
"constructor": {
|
|
"notice": "Constructor ///"
|
|
},
|
|
"getActiveOracleNodes()": {
|
|
"notice": "Returns the addresses of all oracles that have updated their price within the last STALE_DATA_WINDOW"
|
|
},
|
|
"getPrice()": {
|
|
"notice": "Returns the aggregated price from all active oracles using median calculation"
|
|
},
|
|
"owner()": {
|
|
"notice": "State Variables //"
|
|
},
|
|
"removeOracle(uint256)": {
|
|
"notice": "Removes an oracle from the whitelist by its array index (only contract owner)"
|
|
}
|
|
},
|
|
"version": 1
|
|
},
|
|
"storageLayout": {
|
|
"storage": [
|
|
{
|
|
"astId": 87,
|
|
"contract": "contracts/00_Whitelist/WhitelistOracle.sol:WhitelistOracle",
|
|
"label": "owner",
|
|
"offset": 0,
|
|
"slot": "0",
|
|
"type": "t_address"
|
|
},
|
|
{
|
|
"astId": 91,
|
|
"contract": "contracts/00_Whitelist/WhitelistOracle.sol:WhitelistOracle",
|
|
"label": "oracles",
|
|
"offset": 0,
|
|
"slot": "1",
|
|
"type": "t_array(t_contract(SimpleOracle)68)dyn_storage"
|
|
}
|
|
],
|
|
"types": {
|
|
"t_address": {
|
|
"encoding": "inplace",
|
|
"label": "address",
|
|
"numberOfBytes": "20"
|
|
},
|
|
"t_array(t_contract(SimpleOracle)68)dyn_storage": {
|
|
"base": "t_contract(SimpleOracle)68",
|
|
"encoding": "dynamic_array",
|
|
"label": "contract SimpleOracle[]",
|
|
"numberOfBytes": "32"
|
|
},
|
|
"t_contract(SimpleOracle)68": {
|
|
"encoding": "inplace",
|
|
"label": "contract SimpleOracle",
|
|
"numberOfBytes": "20"
|
|
}
|
|
}
|
|
}
|
|
} |