Method HandleMessageDexLimitOrder

fsm/message.go:486–517

HandleMessageDexLimitOrder() is the proper handler for a `DexLimitOrder` message

(msg *MessageDexLimitOrder)

// HandleMessageDexLimitOrder() is the proper handler for a `DexLimitOrder` message
func (s *StateMachine) HandleMessageDexLimitOrder(msg *MessageDexLimitOrder) (err lib.ErrorI) {
	// get the next sell batch
	batch, err := s.GetDexBatch(msg.ChainId, false)
	if err != nil {
		return err
	}
	// ensure there's some liquidity in the pool
	if batch.PoolSize == 0 || s.Config.ChainId == msg.ChainId {
		return ErrInvalidLiquidityPool()
	}
	// hard limit orders to 10K per batch to prevent unchecked state growth
	if len(batch.Orders) >= lib.MaxOrdersPerDexBatch {
		return ErrMaxDexBatchSize()
	}
	// move funds from user
	if err = s.AccountSub(crypto.NewAddress(msg.Address), msg.AmountForSale); err != nil {
		return err
	}
	// add funds to holding pool
	if err = s.PoolAdd(msg.ChainId+HoldingPoolAddend, msg.AmountForSale); err != nil {
		return err
	}
	// add the order to the batch
	batch.Orders = append(batch.Orders, &lib.DexLimitOrder{
		AmountForSale:   msg.AmountForSale,
		RequestedAmount: msg.RequestedAmount,
		Address:         msg.Address,
		OrderId:         msg.OrderId,
	})
	// update next sell batch
	return s.SetDexBatch(KeyForNextBatch(msg.ChainId), batch)
}

// HandleMessageDexLiquidityDeposit() is the proper handler for a `DexLiquidityDeposit` message
func (s *StateMachine) HandleMessageDexLiquidityDeposit(msg *MessageDexLiquidityDeposit) (err lib.ErrorI) {