feat: Add stake migration tx

src/types/msg/stake/index.ts

@@ -1,3 +1,4 @@
 export * from "./bscDelegateMsg"
 export * from "./bscUndelegateMsg"
 export * from "./bscRedelegateMsg"
+export * from "./stakeMigrationMsg"

src/types/msg/stake/stakeMigrationMsg.ts

@@ -0,0 +1,89 @@
+import { BaseMsg, Msg, SignMsg, Coin } from ".."
+import * as crypto from "../../../crypto"
+import { AminoPrefix } from "../../tx"
+
+export interface SignedStakeMigrationMsg extends SignMsg {
+  delegator_addr: string
+  validator_src_addr: string
+  validator_dst_addr: string
+  refund_addr: string
+  amount: Coin
+}
+
+export interface StakeMigrationData extends Msg {
+  validator_src_addr: Buffer
+  validator_dst_addr: Buffer
+  delegator_addr: Buffer
+  refund_addr: Buffer
+  amount: Coin
+  aminoPrefix: AminoPrefix
+}
+
+export class StakeMigrationMsg extends BaseMsg {
+  private delegator_addr: string
+  private validator_src_addr: string
+  private validator_dst_addr: string
+  private refund_addr: string
+  private amount: Coin
+
+  constructor({
+    delegator_addr,
+    validator_src_addr,
+    validator_dst_addr,
+    amount,
+    refund_addr,
+  }: {
+    delegator_addr: string
+    validator_src_addr: string
+    validator_dst_addr: string
+    amount: Coin
+    refund_addr: string
+  }) {
+    super()
+    this.delegator_addr = delegator_addr
+    this.validator_src_addr = validator_src_addr
+    this.validator_dst_addr = validator_dst_addr
+    this.amount = amount
+    this.refund_addr = refund_addr
+  }
+
+  getSignMsg() {
+    const { denom, amount } = this.amount
+    const signMsg: SignedStakeMigrationMsg = {
+      delegator_addr: this.delegator_addr,
+      validator_src_addr: this.validator_src_addr,
+      validator_dst_addr: this.validator_dst_addr,
+      amount: { denom, amount: String(amount) },
+      refund_addr: this.refund_addr,
+    }
+
+    return {
+      type: "cosmos-sdk/MsgSideChainStakeMigration",
+      value: signMsg,
+    }
+  }
+
+  getMsg() {
+    const data: StakeMigrationData = {
+      delegator_addr: crypto.decodeAddress(this.delegator_addr),
+      validator_src_addr: crypto.decodeAddress(this.validator_src_addr),
+      validator_dst_addr: crypto.decodeAddress(this.validator_dst_addr),
+      amount: this.amount,
+      refund_addr: crypto.decodeAddress(this.refund_addr),
+      aminoPrefix: AminoPrefix.MsgSideChainStakeMigration,
+    }
+
+    return data
+  }
+
+  static defaultMsg() {
+    return {
+      delegator_addr: Buffer.from(""),
+      validator_src_addr: Buffer.from(""),
+      validator_dst_addr: Buffer.from(""),
+      amount: [{ denom: "", amount: 0 }],
+      refund_addr: Buffer.from(""),
+      aminoPrefix: AminoPrefix.MsgSideChainStakeMigration,
+    }
+  }
+}

src/types/tx/stdTx.ts

@@ -65,6 +65,7 @@ export enum AminoPrefix {
   MsgSideChainDelegate = "E3A07FD2",
   MsgSideChainRedelegate = "E3CED364",
   MsgSideChainUndelegate = "514F7E0E",
+  MsgSideChainStakeMigration = "38589196",
   Claim = "4E781C11",
   ClaimMsg = "175A0521",
   BindMsg = "B9AE640C",