# Stake Position

## Staked position package

This package provides an interface to the staked position manipulation. The main entry point is the StakedPosition structure.

## Opening a position

A user can open a position by using the stake function. When opening a position, a user has to specify the lock duration period in milliseconds. The lock duration should respect the boundaries set during the Afterburner Vault configuration.

A locked position will receive bonus rewards in respect of the configured Afterburner Vault’s multiplier.

## Harvesting rewards

Rewards harvesting is a three-stage process:

* a user has to call the begin\_harvest\<STAKE> function;
* for each reward, a user should call the harvest\_rewards\<STAKE, REWARD> function. It will allow the user to obtain rewards accrued for the type \`Coin\<REWARD>\`;
* to finalize the process a user has to call the end\_harvest function which emits the corresponding event.

For a Strict implementation, a user can claim their rewards at any moment.

For a Relaxed implementation, a user can claim their rewards only after the position is unlocked.

## Adding to a stake

At any given moment a user can increase the position’s staked amount by using the deposit\_principal function. After increasing the stake of a locked position, the lock period is recalculated.

## Withdrawing a stake

A user may withdraw the staked principal by using the withdraw\_principal\<STAKE> function. The position must be unlocked in order to withdraw from it.

It is not possible to unlock a position staked in the Strict Afterburner Vault before the end of the lock period.

## Prolonging a position's lock

A user may increase a lock period by using the renew\_lock function.

## Joining positions

A user may merge two positions by using the join function. The resulting position will have the most recent lock start time and the longer lock duration between the two positions.

## Splitting positions

A user may split a position into two by using the split function. The accumulated rewards are split between the two positions determined by the pro-rata amount being split over the total staked amount. All other parameters are kept identical to the original position.

## Closing a position

A user may delete an inactive position by using the destroy function. The destroyed position must not have any principal or rewards remaining.