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harmonixfi / core-smart-contract

Core smart contracts of Harmonix Finance
https://harmonix.fi/
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Check the withdrawal rate of ezETH/ETH from Renzo contract #139

Open baonguyen1904 opened 2 months ago

baonguyen1904 commented 2 months ago

Problem Statement: Renzo has activated the withdrawal feature within their contract. Our task is to determine how to retrieve the swap rate from ezETH to ETH on the withdrawal interface.

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Research Goals:

  1. Swap Rate Calculation: Investigate methods to calculate the swap rate accurately between ezETH and ETH.
  2. Availability for Withdrawal: Determine if it's feasible to display the amount available for withdrawal based on the swap rate.

These steps will guide us in integrating the necessary functionality seamlessly.

dangeth commented 1 month ago

Sample of withdrawing 1 ezETH: 0x5a12796f7e7EBbbc8a402667d266d2e65A814042::calculateRedeemAmount(_ezETHBeingBurned = 1000000000000000000, _existingEzETHSupply = 718248708618119206789770, _currentValueInProtocol = 728391380969593839730476)

Where: • _ezETHBeingBurned is the withdrawal input • _existingEzETHSupply from 0xbf5495Efe5DB9ce00f80364C8B423567e58d2110::totalSupply() • _currentValueInProtocol from 0x74a09653A083691711cF8215a6ab074BB4e99ef5::calculateTVLs()

_existingEzETHSupply and _currentValueInProtocol can be got by multicall at once.