MASP flows

[grarco]

Adds support for indexing MASP's in and out flows

[sug0]

not as much code repetition here

Suggested change

	TransactionKind::MixedTransfer(Some(transfer_data)) => {
	transfer_data
	.sources
	.0
	.iter()
	.filter_map(|(source, denominated_amount)| {
	if source.owner == MASP_ADDRESS {
	Some(MaspEntry {
	token_address: source.token.to_string(),
	timestamp: self.header.timestamp,
	raw_amount: denominated_amount
	.amount()
	.into(),
	direction: MaspEntryDirection::Out,
	inner_tx_id: tx.tx_id.clone(),
	})
	} else {
	None
	}
	})
	.chain(transfer_data.targets.0.iter().filter_map(
	|(target, denominated_amount)| {
	if target.owner == MASP_ADDRESS {
	Some(MaspEntry {
	token_address: target.token.to_string(),
	timestamp: self.header.timestamp,
	raw_amount: denominated_amount
	.amount()
	.into(),
	direction: MaspEntryDirection::In,
	inner_tx_id: tx.tx_id.clone(),
	})
	} else {
	None
	}
	},
	))
	.collect()
	}
	TransactionKind::MixedTransfer(Some(transfer_data)) => {
	transfer_data
	.sources
	.0
	.iter()
	.map(|(source, denominated_amount)| {
	(
	source,
	denominated_amount,
	MaspEntryDirection::Out,
	)
	})
	.chain(transfer_data.targets.0.iter().map(
	|(target, denominated_amount)| {
	(
	target,
	denominated_amount,
	MaspEntryDirection::In,
	)
	},
	))
	.filter_map(|(transfer, denominated_amount, dir)| {
	if transfer.owner == MASP_ADDRESS {
	Some(MaspEntry {
	token_address: transfer.token.to_string(),
	timestamp: self.header.timestamp,
	raw_amount: denominated_amount
	.amount()
	.into(),
	direction: dir,
	inner_tx_id: tx.tx_id.clone(),
	})
	} else {
	None
	}
	})
	.collect()
	}