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Big from \"big.js\";\nimport { NearConfig } from \"./near\";\nimport React from \"react\";\n\nconst MinAccountIdLen = 2;\nconst MaxAccountIdLen = 64;\nconst ValidAccountRe = /^(([a-z\\d]+[-_])*[a-z\\d]+\\.)*([a-z\\d]+[-_])*[a-z\\d]+$/;\nexport const OneNear = Big(10).pow(24);\nexport const OneEth = Big(10).pow(18);\nconst AccountSafetyMargin = OneNear.div(2);\n\nexport const Loading = (\n \n);\n\nexport function isValidAccountId(accountId) {\n return (\n accountId &&\n accountId.length >= MinAccountIdLen &&\n accountId.length <= MaxAccountIdLen &&\n accountId.match(ValidAccountRe)\n );\n}\n\nconst toCamel = (s) => {\n return s.replace(/([-_][a-z])/gi, ($1) => {\n return $1.toUpperCase().replace(\"-\", \"\").replace(\"_\", \"\");\n });\n};\n\nconst isArray = function (a) {\n return Array.isArray(a);\n};\n\nexport const isObject = function (o) {\n return o === Object(o) && !isArray(o) && typeof o !== \"function\";\n};\n\nexport const keysToCamel = function (o) {\n if (isObject(o)) {\n const n = {};\n\n Object.keys(o).forEach((k) => {\n n[toCamel(k)] = keysToCamel(o[k]);\n });\n\n return n;\n } else if (isArray(o)) {\n return o.map((i) => {\n return keysToCamel(i);\n });\n }\n\n return o;\n};\n\nexport const bigMin = (a, b) => {\n if (a && b) {\n return a.lt(b) ? a : b;\n }\n return a || b;\n};\n\nexport const bigToString = (b, p, len) => {\n if (b === null) {\n return \"???\";\n }\n let s = b.toFixed();\n let pos = s.indexOf(\".\");\n p = p || 6;\n len = len || 7;\n if (pos > 0) {\n let ap = Math.min(p, Math.max(len - pos, 0));\n if (ap > 0) {\n ap += 1;\n }\n if (pos + ap < s.length) {\n s = s.substring(0, pos + ap);\n }\n } else {\n pos = s.length;\n }\n for (let i = pos - 4; i >= 0; i -= 3) {\n s = s.slice(0, i + 1) + \",\" + s.slice(i + 1);\n }\n\n if (s === \"0.000000\" && p === 6 && len === 7) {\n return \"<0.000001\";\n }\n\n return s;\n};\n\nexport const displayNear = (balance) =>\n balance ? (\n <>\n {bigToString(balance.div(OneNear))}{\" \"}\n NEAR\n \n ) : (\n \"???\"\n );\n\nexport const dateToString = (d) => {\n return d.toLocaleString(\"en-us\", {\n day: \"numeric\",\n month: \"short\",\n year: \"numeric\",\n });\n};\n\nexport const displayTime = (d) => {\n return d.toLocaleString();\n};\n\nexport const availableNearBalance = (account) => {\n if (account && !account.loading && account.state) {\n let balance = Big(account.state.amount).sub(\n Big(account.state.storage_usage).mul(Big(NearConfig.storageCostPerByte))\n );\n if (balance.gt(AccountSafetyMargin)) {\n return balance.sub(AccountSafetyMargin);\n }\n }\n return Big(0);\n};\n\nexport const isoDate = (d) =>\n d ? new Date(d).toISOString().substring(0, 10) : \"\";\n\nexport function accountTrim(accountId) {\n return accountId && accountId.length > 14 + 14 + 1\n ? accountId.slice(0, 14) + \"…\" + accountId.slice(-14)\n : accountId;\n}\n\nexport const computeUsdBalance = (refFinance, tokenAccountId, balance) => {\n if (refFinance && !refFinance.loading && balance) {\n if (tokenAccountId === NearConfig.wrapNearAccountId) {\n return balance.div(OneNear).mul(refFinance.nearPrice);\n } else if (\n tokenAccountId in refFinance.prices &&\n refFinance.nearPrice.gt(0)\n ) {\n const p = refFinance.prices[tokenAccountId];\n const balanceIn = p.totalOther;\n const balanceOut = p.totalNear;\n let amountWithFee = Big(balance.div(1000));\n const amountOut = amountWithFee\n .mul(balanceOut)\n .div(balanceIn.add(amountWithFee))\n .round(0, 0);\n\n return amountOut.mul(1000).div(OneNear).mul(refFinance.nearPrice);\n }\n }\n return null;\n};\n\nexport const fromTokenBalance = (token, balance, adjustForBurrow) => {\n return !token || token.invalidAccount || token.notFound || !balance\n ? balance\n : balance.div(Big(10).pow(token.metadata.decimals));\n};\n\nexport const toTokenBalance = (token, balance) => {\n return !token || token.invalidAccount || token.notFound || !balance\n ? balance\n : balance.mul(Big(10).pow(token.metadata.decimals));\n};\n\nexport const fromBurrowBalance = (token, balance) => {\n return !token || token.invalidAccount || token.notFound || !balance\n ? balance\n : balance.div(Big(10).pow(Math.max(0, 18 - token.metadata.decimals)));\n};\n","import { keysToCamel } from \"../data/utils\";\nimport Big from \"big.js\";\n\nBig.DP = 40;\n\nconst BurrowContractId = \"contract.main.burrow.near\";\nconst OracleContractId = \"priceoracle.near\";\n\nexport async function computeValueForBlochHeight(viewCall) {\n const assets = keysToCamel(\n await viewCall(BurrowContractId, \"get_assets_paged\")\n );\n const assetIds = assets.map(([assetId, asset]) => assetId);\n const prices = keysToCamel(\n await viewCall(OracleContractId, \"get_price_data\", {\n asset_ids: assetIds,\n })\n );\n const priceMul = prices.prices.reduce((acc, { assetId, price }) => {\n if (price) {\n acc[assetId] = Big(price.multiplier).div(Big(10).pow(price.decimals));\n } else {\n acc[assetId] = Big(0);\n }\n return acc;\n }, {});\n\n const totalReserves = assets.reduce((sum, [assetId, asset]) => {\n const value = Big(asset.reserved).div(\n Big(10).pow(asset.config.extraDecimals)\n );\n return priceMul[assetId] ? sum?.add(value.mul(priceMul[assetId])) : null;\n }, Big(0));\n\n const totalDeposit = assets.reduce((sum, [assetId, asset]) => {\n const value = Big(asset.supplied.balance)\n .add(Big(asset.reserved))\n .div(Big(10).pow(asset.config.extraDecimals));\n return priceMul[assetId] ? sum?.add(value.mul(priceMul[assetId])) : null;\n }, Big(0));\n\n const totalBorrowed = assets.reduce((sum, [assetId, asset]) => {\n const value = Big(asset.borrowed.balance).div(\n Big(10).pow(asset.config.extraDecimals)\n );\n return priceMul[assetId] ? sum?.add(value.mul(priceMul[assetId])) : null;\n }, Big(0));\n\n return {\n Deposited: totalDeposit?.toFixed(2),\n Borrowed: totalBorrowed?.toFixed(2),\n Reserves: totalReserves?.toFixed(2),\n \"Non-borrowed TVL\": totalDeposit?.sub(totalBorrowed)?.toFixed(2),\n };\n}\n","import \"./App.scss\";\nimport \"error-polyfill\";\nimport \"bootstrap/dist/js/bootstrap.bundle\";\nimport { useCallback, useEffect, useState } from \"react\";\nimport \"chartjs-adapter-moment\";\nimport { Line } from \"react-chartjs-2\";\nimport { useNear } from \"./data/near\";\nimport { PromisePool } from \"@supercharge/promise-pool\";\nimport \"chart.js/auto\";\nimport { computeValueForBlochHeight } from \"./fetchers/burrowTvl\";\nimport palette from \"google-palette\";\n\nconst NumSplits = 8;\nconst CloseEnoughTimeDiff = 60 * 1000;\n\nconst startBlockTime = new Date(\"2022-03-28\");\nconst OptimisticMsPerBlock = 900;\n\nconst YAxis = {\n Default: \"Default\",\n BeginAtZero: \"BeginAtZero\",\n LogScale: \"LogScale\",\n};\n\nconst LineOptions = {\n animation: false,\n responsive: true,\n scales: {\n xAxis: {\n type: \"time\",\n time: {\n minUnit: \"hour\",\n },\n ticks: {\n major: {\n enabled: true,\n },\n },\n },\n yAxis: {\n ticks: {\n beginAtZero: true,\n },\n },\n },\n plugins: {\n colorschemes: {\n scheme: \"brewer.Paired12\",\n },\n },\n};\n\nasync function fetchNextAvailableBlock(near, blockHeight) {\n const limit = blockHeight + 5;\n for (\n let tryingBlockHeight = blockHeight;\n tryingBlockHeight < limit;\n tryingBlockHeight++\n ) {\n try {\n const block = await near.fetchArchivalBlock(tryingBlockHeight);\n if (block) {\n return block;\n }\n } catch (e) {\n // Probably block doesn't exist\n }\n }\n return null;\n}\n\nconst blockTime = (block) => parseFloat(block.header.timestamp_nanosec) / 1e6;\n\nasync function fetchDataPoint(near, blockHeight) {\n const block = await fetchNextAvailableBlock(near, blockHeight);\n const time = blockTime(block);\n blockHeight = block.header.height;\n return {\n time,\n blockHeight,\n value: await computeValueForBlochHeight((...args) =>\n near.archivalViewCall(blockHeight, ...args)\n ),\n };\n}\n\nasync function findStartBlock(near, startBlockTime, currentBlock) {\n let blockTimeRight = blockTime(currentBlock);\n let blockHeightRight = currentBlock.header.height;\n const leftBlock = await fetchNextAvailableBlock(\n near,\n Math.max(\n blockHeightRight - 10000000,\n blockHeightRight -\n Math.ceil((blockTimeRight - startBlockTime) / OptimisticMsPerBlock)\n )\n );\n let blockHeightLeft = leftBlock.header.height;\n let blockTimeLeft = blockTime(leftBlock);\n for (let i = 0; i < 5; ++i) {\n const blockHeight =\n blockHeightLeft +\n Math.round(\n ((blockHeightRight - blockHeightLeft) /\n (blockTimeRight - blockTimeLeft)) *\n (startBlockTime - blockTimeLeft)\n );\n const block = await fetchNextAvailableBlock(near, blockHeight);\n const blockTimestamp = blockTime(block);\n const blockProximity = Math.abs(startBlockTime - blockTimestamp);\n console.log(\n `Iter #${i}: Block time proximity ${(blockProximity / 1e3).toFixed(\n 2\n )} sec`\n );\n if (blockProximity < CloseEnoughTimeDiff) {\n return block;\n }\n if (blockTimestamp > startBlockTime) {\n blockHeightRight = blockHeight;\n blockTimeRight = blockTimestamp;\n } else {\n blockHeightLeft = blockHeight;\n blockTimeLeft = blockTimestamp;\n }\n }\n return await fetchNextAvailableBlock(near, blockHeightLeft);\n}\n\nasync function fetchData(near, setProgress, setData) {\n setProgress(\"fetching current block\");\n const currentBlockHeight = await near.fetchBlockHeight();\n console.log(\"Current blockHeight\", currentBlockHeight);\n const currentBlock = await near.fetchArchivalBlock(currentBlockHeight);\n setProgress(\"searching for the starting block\");\n const startBlock = await findStartBlock(\n near,\n startBlockTime.getTime(),\n currentBlock\n );\n const startBlockHeight = startBlock.header.height;\n console.log(\"Start blockHeight\", startBlockHeight);\n // const startTime = blockTime(startBlock);\n setProgress(\"fetching initial data\");\n\n let blockHeights = [startBlockHeight, currentBlockHeight];\n let allBlockHeights = [startBlockHeight, currentBlockHeight];\n let data = [];\n for (let i = 0; i < NumSplits; ++i) {\n const { results, errors } = await PromisePool.withConcurrency(8)\n .for(blockHeights)\n .process(async (blockHeight) => fetchDataPoint(near, blockHeight));\n\n if (errors.length > 0) {\n console.log(\"Errors\", errors);\n }\n\n data = [...data, ...results].sort((a, b) => a.blockHeight - b.blockHeight);\n setData(data);\n setProgress(`increasing precision, iteration ${i + 1} / ${NumSplits}`);\n\n // Splitting\n const newBlockHeights = [];\n for (let i = 0; i < allBlockHeights.length - 1; ++i) {\n newBlockHeights.push((allBlockHeights[i] + allBlockHeights[i + 1]) >> 1);\n }\n allBlockHeights = [...allBlockHeights, ...newBlockHeights].sort();\n blockHeights = newBlockHeights;\n }\n}\n\nconst computeLineData = (data) => {\n const val = data[0].value;\n const keys = Object.keys(val);\n const p = palette(\"tol\", keys.length).map((hex) => \"#\" + hex);\n const datasets = keys.map((key, index) => {\n const d = data.map(({ time, value }) => {\n return {\n x: new Date(time),\n y: value[key],\n };\n });\n return {\n data: d,\n label: key,\n backgroundColor: p[index],\n };\n });\n return {\n datasets,\n };\n};\n\nfunction App() {\n const [data, setData] = useState(null);\n const [progress, setProgress] = useState(null);\n const [yAxis, setYAxis] = useState(YAxis.Default);\n const [lineOptions, setLineOptions] = useState(LineOptions);\n\n const near = useNear();\n useEffect(() => {\n if (!near) {\n return;\n }\n\n fetchData(near, setProgress, setData).then(() => setProgress(null));\n }, [near]);\n\n useEffect(() => {\n const lineOptions = JSON.parse(JSON.stringify(LineOptions));\n if (yAxis === YAxis.BeginAtZero) {\n lineOptions.scales.yAxis.min = 0;\n } else if (yAxis === YAxis.LogScale) {\n lineOptions.scales.yAxis.type = \"logarithmic\";\n }\n setLineOptions(lineOptions);\n }, [yAxis]);\n\n const yAxisOnChange = useCallback((e) => {\n setYAxis(e.target.value);\n }, []);\n\n return (\n
\n

Burrow TVL

\n
\n
\n \n
\n
\n \n \n
\n
\n \n \n
\n
\n \n \n
\n
\n
\n
\n {data && (\n
\n \n
\n )}\n {progress &&

Progress: {progress}

}\n {data && (\n
\n

Raw data

\n
\n 
{JSON.stringify(data, null, 2)}
\n
\n
\n )}\n
\n
\n
\n );\n}\n\nexport default App;\n","import React from \"react\";\nimport ReactDOM from \"react-dom\";\nimport \"./index.css\";\nimport App from \"./App\";\n\nReactDOM.render(\n \n \n ,\n document.getElementById(\"root\")\n);\n\n// If you want to start measuring performance in your app, pass a function\n// to log results (for example: reportWebVitals(console.log))\n// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals\n// reportWebVitals();\n","import * as nearAPI from \"near-api-js\";\nimport { singletonHook } from \"react-singleton-hook\";\nimport Big from \"big.js\";\nimport { useEffect, useState } from \"react\";\n\nexport const TGas = Big(10).pow(12);\nexport const StorageCostPerByte = Big(10).pow(19);\n// const isLocalhost = window.location.hostname === \"localhost\";\n\nexport const IsMainnet = true;\nexport const MainNearConfig = {\n networkId: \"mainnet\",\n nodeUrl: \"https://rpc.mainnet.near.org\",\n archivalNodeUrl: \"https://rpc.mainnet.internal.near.org\",\n walletUrl: \"https://wallet.near.org\",\n storageCostPerByte: StorageCostPerByte,\n wrapNearAccountId: \"wrap.near\",\n refContractAccountId: \"v2.ref-finance.near\",\n};\n\nexport const NearConfig = MainNearConfig;\nexport const LsKey = \":burrow-live-feed:\";\n\nasync function _initNear() {\n const keyStore = new nearAPI.keyStores.BrowserLocalStorageKeyStore();\n keyStore.reKey = () => {};\n const nearConnection = await nearAPI.connect(\n Object.assign({ deps: { keyStore } }, NearConfig)\n );\n const _near = {};\n\n _near.nearArchivalConnection = nearAPI.Connection.fromConfig({\n networkId: NearConfig.networkId,\n provider: {\n type: \"JsonRpcProvider\",\n args: { url: NearConfig.archivalNodeUrl },\n },\n signer: { type: \"InMemorySigner\", keyStore },\n });\n\n _near.keyStore = keyStore;\n _near.nearConnection = nearConnection;\n\n _near.walletConnection = new nearAPI.WalletConnection(\n nearConnection,\n NearConfig.contractName\n );\n _near.accountId = _near.walletConnection.getAccountId();\n _near.account = _near.walletConnection.account();\n\n _near.contract = new nearAPI.Contract(\n _near.account,\n NearConfig.contractName,\n {\n viewMethods: [],\n changeMethods: [],\n }\n );\n\n _near.fetchArchivalBlock = async (blockHeight) => {\n return _near.nearArchivalConnection.provider.block(blockHeight);\n };\n\n _near.fetchBlockHash = async () => {\n const block = await nearConnection.connection.provider.block({\n finality: \"final\",\n });\n return nearAPI.utils.serialize.base_decode(block.header.hash);\n };\n\n _near.fetchBlockHeight = async () => {\n const block = await nearConnection.connection.provider.block({\n finality: \"final\",\n });\n return block.header.height;\n };\n\n _near.fetchNextNonce = async () => {\n const accessKeys = await _near.account.getAccessKeys();\n return accessKeys.reduce(\n (nonce, accessKey) => Math.max(nonce, accessKey.access_key.nonce + 1),\n 1\n );\n };\n\n _near.archivalViewCall = async (blockId, contractId, methodName, args) => {\n args = args || {};\n const result = await _near.nearArchivalConnection.provider.query({\n request_type: \"call_function\",\n account_id: contractId,\n method_name: methodName,\n args_base64: Buffer.from(JSON.stringify(args)).toString(\"base64\"),\n block_id: blockId,\n });\n\n return (\n result.result &&\n result.result.length > 0 &&\n JSON.parse(Buffer.from(result.result).toString())\n );\n };\n\n _near.viewCall = async (contractId, methodName, args) => {\n args = args || {};\n const result = await nearConnection.connection.provider.query({\n request_type: \"call_function\",\n account_id: contractId,\n method_name: methodName,\n args_base64: Buffer.from(JSON.stringify(args)).toString(\"base64\"),\n finality: \"optimistic\",\n });\n\n return (\n result.result &&\n result.result.length > 0 &&\n JSON.parse(Buffer.from(result.result).toString())\n );\n };\n\n return _near;\n}\n\nconst defaultNearPromise = Promise.resolve(_initNear());\nexport const useNearPromise = singletonHook(defaultNearPromise, () => {\n return defaultNearPromise;\n});\n\nconst defaultNear = null;\nexport const useNear = singletonHook(defaultNear, () => {\n const [near, setNear] = useState(defaultNear);\n const _near = useNearPromise();\n\n useEffect(() => {\n _near.then(setNear);\n }, [_near]);\n\n return near;\n});\n"],"sourceRoot":""}