[PRODCRE-1746] Move core chain types into common keystore (#1830)

* Minor.

* Minor.

* Minor.

Author: pavel-raykov

keystore/corekeys/chaintype.go

@@ -0,0 +1,118 @@
+package corekeys
+
+import (
+	"fmt"
+	"slices"
+	"strings"
+)
+
+// ChainType denotes the chain or network to work with
+type ChainType string
+
+const (
+	// EVM for Ethereum or other chains supporting the EVM
+	EVM ChainType = "evm"
+	// Cosmos for the Cosmos chain
+	Cosmos ChainType = "cosmos"
+	// Solana for the Solana chain
+	Solana ChainType = "solana"
+	// StarkNet for the StarkNet chain
+	StarkNet ChainType = "starknet"
+	// Aptos for the Aptos chain
+	Aptos ChainType = "aptos"
+	// Tron for the Tron chain
+	Tron ChainType = "tron"
+	// TON for the TON chain
+	TON ChainType = "ton"
+	// Sui for the Sui chain
+	Sui ChainType = "sui"
+	// Offchain is used by the MultichainKeyringAdapter when we are signing for offchain (eg. for DKG).
+	Offchain ChainType = "offchain"
+)
+
+type ChainTypes []ChainType
+
+func (c ChainTypes) String() (out string) {
+	var sb strings.Builder
+	for i, chain := range c {
+		if i != 0 {
+			sb.WriteString(", ")
+		}
+		sb.WriteString(string(chain))
+	}
+	return sb.String()
+}
+
+func NewChainType(typ uint8) (ChainType, error) {
+	switch typ {
+	case 1:
+		return EVM, nil
+	case 2:
+		return Solana, nil
+	case 3:
+		return Cosmos, nil
+	case 4:
+		return StarkNet, nil
+	case 5:
+		return Aptos, nil
+	case 6:
+		return Tron, nil
+	case 7:
+		return TON, nil
+	case 8:
+		return Sui, nil
+	case 9:
+		return Offchain, nil
+	default:
+		return "", fmt.Errorf("unexpected chaintype.ChainType: %#v", typ)
+	}
+}
+
+func (c ChainType) Type() (uint8, error) {
+	switch c {
+	case EVM:
+		return 1, nil
+	case Solana:
+		return 2, nil
+	case Cosmos:
+		return 3, nil
+	case StarkNet:
+		return 4, nil
+	case Aptos:
+		return 5, nil
+	case Tron:
+		return 6, nil
+	case TON:
+		return 7, nil
+	case Sui:
+		return 8, nil
+	case Offchain:
+		return 9, nil
+	default:
+		return 0, fmt.Errorf("unexpected chaintype.ChainType: %#v", c)
+	}
+}
+
+// SupportedChainTypes contain all chains that are supported
+var SupportedChainTypes = ChainTypes{EVM, Cosmos, Solana, StarkNet, Aptos, Tron, TON, Sui}
+
+// ErrInvalidChainType is an error to indicate an unsupported chain type
+var ErrInvalidChainType error
+
+func init() {
+	supported := make([]string, 0, len(SupportedChainTypes))
+	for _, chainType := range SupportedChainTypes {
+		supported = append(supported, fmt.Sprintf(`"%s"`, chainType))
+	}
+	ErrInvalidChainType = fmt.Errorf("valid types include: [%s]", strings.Join(supported, ", "))
+}
+
+// IsSupportedChainType checks to see if the chain is supported
+func IsSupportedChainType(chainType ChainType) bool {
+	return slices.Contains(SupportedChainTypes, chainType)
+}
+
+// NewErrInvalidChainType returns an error wrapping ErrInvalidChainType for an unsupported chain
+func NewErrInvalidChainType(chainType ChainType) error {
+	return fmt.Errorf(`%w: unknown chain type "%s"`, ErrInvalidChainType, chainType)
+}