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genesis.go
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genesis.go
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package types
import (
"errors"
"fmt"
host "github.com/bianjieai/tibc-go/modules/tibc/core/24-host"
)
// NewPacketState creates a new PacketState instance.
func NewPacketState(sourceChain, destinationChain string, seq uint64, data []byte) PacketState {
return PacketState{
SourceChain: sourceChain,
DestinationChain: destinationChain,
Sequence: seq,
Data: data,
}
}
// Validate performs basic validation of fields returning an error upon any
// failure.
func (pa PacketState) Validate() error {
if pa.Data == nil {
return errors.New("data bytes cannot be nil")
}
return validateGenFields(pa.SourceChain, pa.DestinationChain, pa.Sequence)
}
// NewPacketSequence creates a new PacketSequences instance.
func NewPacketSequence(sourceChain, destinationChain string, seq uint64) PacketSequence {
return PacketSequence{
SourceChain: sourceChain,
DestinationChain: destinationChain,
Sequence: seq,
}
}
// Validate performs basic validation of fields returning an error upon any
// failure.
func (ps PacketSequence) Validate() error {
return validateGenFields(ps.SourceChain, ps.DestinationChain, ps.Sequence)
}
// NewGenesisState creates a GenesisState instance.
func NewGenesisState(
acks, commitments, receipts []PacketState,
sendSeqs, recvSeqs, ackSeqs []PacketSequence,
) GenesisState {
return GenesisState{
Acknowledgements: acks,
Commitments: commitments,
Receipts: receipts,
SendSequences: sendSeqs,
RecvSequences: recvSeqs,
AckSequences: ackSeqs,
}
}
// DefaultGenesisState returns the tibc packet submodule's default genesis state.
func DefaultGenesisState() GenesisState {
return GenesisState{
Acknowledgements: []PacketState{},
Receipts: []PacketState{},
Commitments: []PacketState{},
SendSequences: []PacketSequence{},
RecvSequences: []PacketSequence{},
AckSequences: []PacketSequence{},
}
}
// Validate performs basic genesis state validation returning an error upon any
// failure.
func (gs GenesisState) Validate() error {
for i, ack := range gs.Acknowledgements {
if err := ack.Validate(); err != nil {
return fmt.Errorf("invalid acknowledgement %v ack index %d: %w", ack, i, err)
}
if len(ack.Data) == 0 {
return fmt.Errorf("invalid acknowledgement %v ack index %d: data bytes cannot be empty", ack, i)
}
}
for i, receipt := range gs.Receipts {
if err := receipt.Validate(); err != nil {
return fmt.Errorf("invalid acknowledgement %v ack index %d: %w", receipt, i, err)
}
}
for i, commitment := range gs.Commitments {
if err := commitment.Validate(); err != nil {
return fmt.Errorf("invalid commitment %v index %d: %w", commitment, i, err)
}
if len(commitment.Data) == 0 {
return fmt.Errorf("invalid acknowledgement %v ack index %d: data bytes cannot be empty", commitment, i)
}
}
for i, ss := range gs.SendSequences {
if err := ss.Validate(); err != nil {
return fmt.Errorf("invalid send sequence %v index %d: %w", ss, i, err)
}
}
for i, rs := range gs.RecvSequences {
if err := rs.Validate(); err != nil {
return fmt.Errorf("invalid receive sequence %v index %d: %w", rs, i, err)
}
}
for i, as := range gs.AckSequences {
if err := as.Validate(); err != nil {
return fmt.Errorf("invalid acknowledgement sequence %v index %d: %w", as, i, err)
}
}
return nil
}
func validateGenFields(sourceChain, destChain string, sequence uint64) error {
if err := host.SourceChainValidator(sourceChain); err != nil {
return fmt.Errorf("invalid port Id: %w", err)
}
if err := host.DestChainValidator(destChain); err != nil {
return fmt.Errorf("invalid channel Id: %w", err)
}
if sequence == 0 {
return errors.New("sequence cannot be 0")
}
return nil
}