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fix: tickets linking and origin when exiting commission during exitRequest #56

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fix: tickets linking and origin when exiting commission during exitRequest #56

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36 changes: 28 additions & 8 deletions src/ERC20.mapping.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -545,14 +545,34 @@ export function handleExit(event: Exit): void {
totalETH = totalETH.plus(ethValue);
depositDataEntry.exitedEth = depositDataEntry.exitedEth.plus(ethValue);
const exitQueue = vExitQueue.load(pool!.exitQueue);
const nextTicketIdx = exitQueue!.ticketCount.minus(BigInt.fromI32(details.length - idx));
const linkedTicketId = externalEntityUUID(Address.fromBytes(exitQueue!.address), [nextTicketIdx.toString()]);
tickets.push(linkedTicketId);

const ticket = Ticket.load(linkedTicketId);
if (ticket != null) {
ticket.origin = event.address;
ticket.save();

// Verify that the last ticket is owned by the staker, if not commissionShares were exited
// and we need to set the origin of the last tickets to the event emitter address
const staker = event.params.staker;
const lastTicketIdx = exitQueue!.ticketCount.minus(BigInt.fromI32(1));
const lastTicketId = externalEntityUUID(Address.fromBytes(exitQueue!.address), [lastTicketIdx.toString()]);
tickets.push(lastTicketId);

const lastTicket = Ticket.load(lastTicketId);
// I acknowledge that there is an edge case if a the last commission recipient is also the staker
// Fee recipients are generally not used to stake so it's unlikely we hit both edge cases at the same time
if (lastTicket != null && lastTicket!.owner.equals(staker)) {
lastTicket.origin = event.address;
lastTicket.save();
} else if (lastTicket != null) {
// We go back through the last tickets until we find one that has an origin set
// on the way we set the origin to the event address
let previousTicketIdx = lastTicketIdx.minus(BigInt.fromI32(1));
let previousTicketId = externalEntityUUID(Address.fromBytes(exitQueue!.address), [previousTicketIdx.toString()]);
let ticket = Ticket.load(previousTicketId);
while (ticket != null && ticket.origin == null) {
ticket.origin = event.address;
ticket.save();
tickets.push(previousTicketId);
previousTicketIdx = previousTicketIdx.minus(BigInt.fromI32(1));
previousTicketId = externalEntityUUID(Address.fromBytes(exitQueue!.address), [previousTicketIdx.toString()]);
ticket = Ticket.load(previousTicketId);
}
}
}

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