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<!-- Before opening a pull request, please read the [contributing guidelines](https://github.com/pancakeswap/pancake-frontend/blob/develop/CONTRIBUTING.md) first --> <!-- start pr-codex --> --- ## PR-Codex overview This PR focuses on adding support for stable swap addresses in farms configuration and updating related functions and configurations. ### Detailed summary - Added `stableSwapAddress` field to `UniversalFarmConfigStableSwap` - Updated functions to use `stableSwapAddress` instead of `stableLpAddress` - Added support for fetching stable swap pairs in functions - Modified configuration files to include `stableSwapAddress` field > The following files were skipped due to too many changes: `packages/farms/src/utils.ts` > ✨ Ask PR-Codex anything about this PR by commenting with `/codex {your question}` <!-- end pr-codex -->
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| import { ChainId, chainNames, chainNameToChainId } from '@pancakeswap/chains' | ||
| import { formatUniversalFarmToSerializedFarm, UNIVERSAL_FARMS } from '@pancakeswap/farms' | ||
| import { NextApiHandler } from 'next' | ||
| import { stringify } from 'viem' | ||
| import { enum as enum_, nativeEnum } from 'zod' | ||
|
|
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| const allChainNames = Object.values(chainNames) as [string, ...string[]] | ||
|
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| const zChain = nativeEnum(ChainId).or(enum_(allChainNames)) | ||
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| const handler: NextApiHandler = async (req, res) => { | ||
| const isChainInt = !Number.isNaN(parseInt(req.query.chain as string, 10)) | ||
| const chainQuery = isChainInt ? Number(req.query.chain) : req.query.chain | ||
| const parsedChain = zChain.safeParse(chainQuery) | ||
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|
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| if (!parsedChain.success) { | ||
| return res.status(400).json({ error: parsedChain.error }) | ||
| } | ||
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| const chainId = isChainInt ? Number(parsedChain.data) : Number(chainNameToChainId[parsedChain.data]) | ||
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| if (!chainId) { | ||
| return res.status(400).json({ error: 'Invalid chain' }) | ||
| } | ||
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| try { | ||
| const farmConfig = UNIVERSAL_FARMS.filter((farm) => farm.chainId === chainId) | ||
| const legacyFarmConfig = formatUniversalFarmToSerializedFarm(farmConfig) | ||
| // cache for long time, it should revalidate on every deployment | ||
| res.setHeader('Cache-Control', `max-age=10800, s-maxage=31536000`) | ||
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| return res.status(200).json({ | ||
| data: JSON.parse(stringify(legacyFarmConfig)), | ||
| lastUpdatedAt: new Date().toISOString, | ||
| }) | ||
| } catch (error) { | ||
| console.error(error) | ||
| return res.status(500).json({ error: JSON.parse(stringify(error)) }) | ||
| } | ||
| } | ||
|
|
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| export default handler |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| import { formatUniversalFarmToSerializedFarm, UNIVERSAL_FARMS, UNIVERSAL_FARMS_WITH_TESTNET } from '@pancakeswap/farms' | ||
| import { NextApiHandler } from 'next' | ||
| import { stringify } from 'viem' | ||
|
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| const handler: NextApiHandler = async (req, res) => { | ||
| const includeTestnet = !!req.query.includeTestnet | ||
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| try { | ||
| const farmConfig = includeTestnet ? UNIVERSAL_FARMS : UNIVERSAL_FARMS_WITH_TESTNET | ||
| const legacyFarmConfig = formatUniversalFarmToSerializedFarm(farmConfig) | ||
| // cache for long time, it should revalidate on every deployment | ||
| res.setHeader('Cache-Control', `max-age=10800, s-maxage=31536000`) | ||
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| return res.status(200).json({ | ||
| data: JSON.parse(stringify(legacyFarmConfig)), | ||
| lastUpdatedAt: new Date().toISOString, | ||
| }) | ||
| } catch (error) { | ||
| console.error(error) | ||
| return res.status(500).json({ error: JSON.parse(stringify(error)) }) | ||
| } | ||
| } | ||
|
|
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| export default handler |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,101 @@ | ||
| import { FarmV3Data } from './types' | ||
| import { ChainId } from '@pancakeswap/chains' | ||
| import { getStableSwapPools } from '@pancakeswap/stable-swap-sdk' | ||
| import { isAddressEqual } from 'viem' | ||
| import { UNIVERSAL_BCAKEWRAPPER_FARMS } from './farms' | ||
| import { | ||
| ComputedFarmConfigV3, | ||
| FarmV3Data, | ||
| SerializedClassicFarmConfig, | ||
| SerializedFarmConfig, | ||
| SerializedStableFarmConfig, | ||
| UniversalFarmConfig, | ||
| UniversalFarmConfigStableSwap, | ||
| UniversalFarmConfigV2, | ||
| UniversalFarmConfigV3, | ||
| } from './types' | ||
|
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| export function isActiveV3Farm(farm: FarmV3Data, poolLength: number) { | ||
| return farm.pid !== 0 && farm.multiplier !== '0X' && poolLength && poolLength >= farm.pid | ||
| } | ||
|
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| type LegacyFarmConfig = SerializedFarmConfig & { chainId: ChainId; version: 2 | 3 } | ||
| type LegacyStableFarmConfig = SerializedStableFarmConfig & { chainId: ChainId; version: 2 | 3 } | ||
| type LegacyClassicFarmConfig = SerializedClassicFarmConfig & { chainId: ChainId; version: 2 | 3 } | ||
| type LegacyV3FarmConfig = ComputedFarmConfigV3 & { chainId: ChainId; version: 2 | 3 } | ||
| export function formatUniversalFarmToSerializedFarm(farms: UniversalFarmConfig[]): Array<LegacyFarmConfig> { | ||
| return farms | ||
| .map((farm) => { | ||
| switch (farm.protocol) { | ||
| case 'stable': | ||
| return formatStableUniversalFarmToSerializedFarm(farm as UniversalFarmConfigStableSwap) | ||
| case 'v2': | ||
| return formatV2UniversalFarmToSerializedFarm(farm as UniversalFarmConfigV2) | ||
| case 'v3': | ||
| return formatV3UniversalFarmToSerializedFarm(farm as UniversalFarmConfigV3) | ||
| default: | ||
| return undefined | ||
| } | ||
| }) | ||
| .filter((farm): farm is LegacyFarmConfig => farm !== undefined) | ||
| } | ||
|
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| const formatStableUniversalFarmToSerializedFarm = ( | ||
| farm: UniversalFarmConfigStableSwap, | ||
| ): LegacyStableFarmConfig | undefined => { | ||
| const { chainId, lpAddress, pid, token0, token1, stableSwapAddress } = farm | ||
| const stablePair = getStableSwapPools(chainId).find((pair) => { | ||
| return isAddressEqual(pair.stableSwapAddress, stableSwapAddress) | ||
| }) | ||
| const bCakeConfig = UNIVERSAL_BCAKEWRAPPER_FARMS.find((config) => { | ||
| return chainId === config.chainId && isAddressEqual(config.lpAddress, lpAddress) | ||
| }) | ||
|
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| if (!stablePair) { | ||
| console.warn(`Could not find stable pair for farm with stableSwapAddress ${stableSwapAddress}`) | ||
| return undefined | ||
| } | ||
|
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| return { | ||
| pid, | ||
| lpAddress, | ||
| lpSymbol: `${token0.symbol}-${token1.symbol} LP`, | ||
| token: token0, | ||
| quoteToken: token1, | ||
| stableSwapAddress, | ||
| stableLpFee: stablePair.stableLpFee, | ||
| stableLpFeeRateOfTotalFee: stablePair.stableLpFeeRateOfTotalFee, | ||
| infoStableSwapAddress: stablePair.infoStableSwapAddress, | ||
| bCakeWrapperAddress: bCakeConfig?.bCakeWrapperAddress, | ||
| chainId, | ||
| version: 2, | ||
| } | ||
| } | ||
|
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| const formatV2UniversalFarmToSerializedFarm = (farm: UniversalFarmConfigV2): LegacyClassicFarmConfig => { | ||
| const { chainId, pid, lpAddress, token0, token1 } = farm | ||
| return { | ||
| pid, | ||
| lpAddress, | ||
| lpSymbol: `${token0.symbol}-${token1.symbol} LP`, | ||
| token: token0, | ||
| quoteToken: token1, | ||
| chainId, | ||
| version: 2, | ||
| } | ||
| } | ||
|
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| const formatV3UniversalFarmToSerializedFarm = (farm: UniversalFarmConfigV3): LegacyV3FarmConfig => { | ||
| const { chainId, pid, lpAddress, token0, token1, feeAmount } = farm | ||
| return { | ||
| pid, | ||
| lpAddress, | ||
| lpSymbol: `${token0.symbol}-${token1.symbol} LP`, | ||
| token0, | ||
| token1, | ||
| token: token0, | ||
| quoteToken: token1, | ||
| feeAmount, | ||
| chainId, | ||
| version: 3, | ||
| } | ||
| } |
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