package common import ( "math/big" ethCommon "github.com/ethereum/go-ethereum/common" ) const ( // AuctionErrMsgCannotForge is the message returned in forge with the // address cannot forge AuctionErrMsgCannotForge = "HermezAuctionProtocol::forge: CANNOT_FORGE" ) // AuctionConstants are the constants of the Rollup Smart Contract type AuctionConstants struct { // Blocks per slot BlocksPerSlot uint8 `json:"blocksPerSlot"` // Minimum bid when no one has bid yet InitialMinimalBidding *big.Int `json:"initialMinimalBidding"` // First block where the first slot begins GenesisBlockNum int64 `json:"genesisBlockNum"` // ERC777 token with which the bids will be made TokenHEZ ethCommon.Address `json:"tokenHEZ"` // HermezRollup smartcontract address HermezRollup ethCommon.Address `json:"hermezRollup"` // Hermez Governanze Token smartcontract address who controls some parameters and collects HEZ fee GovernanceAddress ethCommon.Address `json:"governanceAddress"` } // SlotNum returns the slot number of a block number func (c *AuctionConstants) SlotNum(blockNum int64) int64 { if blockNum >= c.GenesisBlockNum { return (blockNum - c.GenesisBlockNum) / int64(c.BlocksPerSlot) } return -1 } // SlotBlocks returns the first and the last block numbers included in that slot func (c *AuctionConstants) SlotBlocks(slotNum int64) (int64, int64) { startBlock := c.GenesisBlockNum + slotNum*int64(c.BlocksPerSlot) endBlock := startBlock + int64(c.BlocksPerSlot) - 1 return startBlock, endBlock } // RelativeBlock returns the relative block number within the slot where the // block number belongs func (c *AuctionConstants) RelativeBlock(blockNum int64) int64 { slotNum := c.SlotNum(blockNum) return blockNum - (c.GenesisBlockNum + (slotNum * int64(c.BlocksPerSlot))) } // AuctionVariables are the variables of the Auction Smart Contract type AuctionVariables struct { EthBlockNum int64 `json:"ethereumBlockNum" meddler:"eth_block_num"` // Donation Address DonationAddress ethCommon.Address `json:"donationAddress" meddler:"donation_address" validate:"required"` // Boot Coordinator Address BootCoordinator ethCommon.Address `json:"bootCoordinator" meddler:"boot_coordinator" validate:"required"` // Boot Coordinator URL BootCoordinatorURL string `json:"bootCoordinatorUrl" meddler:"boot_coordinator_url" validate:"required"` // The minimum bid value in a series of 6 slots DefaultSlotSetBid [6]*big.Int `json:"defaultSlotSetBid" meddler:"default_slot_set_bid,json" validate:"required"` // SlotNum at which the new default_slot_set_bid applies DefaultSlotSetBidSlotNum int64 `json:"-" meddler:"default_slot_set_bid_slot_num"` // Distance (#slots) to the closest slot to which you can bid ( 2 Slots = 2 * 40 Blocks = 20 min ) ClosedAuctionSlots uint16 `json:"closedAuctionSlots" meddler:"closed_auction_slots" validate:"required"` // Distance (#slots) to the farthest slot to which you can bid (30 days = 4320 slots ) OpenAuctionSlots uint16 `json:"openAuctionSlots" meddler:"open_auction_slots" validate:"required"` // How the HEZ tokens deposited by the slot winner are distributed (Burn: 40% - Donation: 40% - HGT: 20%) AllocationRatio [3]uint16 `json:"allocationRatio" meddler:"allocation_ratio,json" validate:"required"` // Minimum outbid (percentage) over the previous one to consider it valid Outbidding uint16 `json:"outbidding" meddler:"outbidding" validate:"required"` // Number of blocks at the end of a slot in which any coordinator can forge if the winner has not forged one before SlotDeadline uint8 `json:"slotDeadline" meddler:"slot_deadline" validate:"required"` } // Copy returns a deep copy of the Variables func (v *AuctionVariables) Copy() *AuctionVariables { vCpy := *v for i := range v.DefaultSlotSetBid { vCpy.DefaultSlotSetBid[i] = CopyBigInt(v.DefaultSlotSetBid[i]) } return &vCpy }