add kava (#112)

* add kava

* update readme

* nit

* nit

* nit

README.md

@@ -11,11 +11,12 @@ Check out the [full documentation](https://docs.kiln.fi/v1/connect/overview).
 - ADA
 - ATOM
 - DOT
-- KSM
 - DYDX
 - ETH
 - FET
 - INJ
+- KAVA
+- KSM
 - MATIC
 - NEAR
 - NOBLE

src/integrations/fb_signer.ts

@@ -35,7 +35,8 @@ export type AssetId =
   | "CELESTIA"
   | "INJ_INJ"
   | "TON_TEST"
-  | "TON";
+  | "TON"
+  | "KAVA_KAVA";
 
 export class FbSigner {
   protected fireblocks: FireblocksSDK;

src/kiln.ts

@@ -19,6 +19,7 @@ import { TonService } from "./services/ton";
 import { XtzService } from "./services/xtz";
 import { ZetaService } from "./services/zeta";
 import { KILN_VALIDATORS as v } from "./validators";
+import { KavaService } from "./services/kava";
 
 type Config = {
   apiToken: string;
@@ -48,6 +49,7 @@ export class Kiln {
   inj: InjService;
   ton: TonService;
   zeta: ZetaService;
+  kava: KavaService;
 
   constructor({ testnet, apiToken, baseUrl }: Config) {
     api.defaults.headers.common.Authorization = `Bearer ${apiToken}`;
@@ -73,5 +75,6 @@ export class Kiln {
     this.inj = new InjService({ testnet });
     this.ton = new TonService({ testnet });
     this.zeta = new ZetaService({ testnet });
+    this.kava = new KavaService({ testnet });
   }
 }

src/services/kava.ts

@@ -0,0 +1,177 @@
+import { Service } from "./service";
+
+import { ServiceProps } from "../types/service";
+import { Integration } from "../types/integrations";
+import api from "../api";
+import { DecodedTxRaw } from "@cosmjs/proto-signing";
+import { CosmosSignedTx, CosmosTx, CosmosTxHash, CosmosTxStatus } from "../types/cosmos";
+import { parseUnits } from "viem";
+
+export class KavaService extends Service {
+  constructor({ testnet }: ServiceProps) {
+    super({ testnet });
+  }
+
+  /**
+   * Convert KAVA to ukava
+   * @param amount
+   */
+  kavaToUkava(amount: string): string {
+    return parseUnits(amount, 6).toString();
+  }
+
+  /**
+   * Craft kava staking transaction
+   * @param accountId id of the kiln account to use for the stake transaction
+   * @param pubkey wallet pubkey, this is different from the wallet address
+   * @param validatorAddress validator address to delegate to
+   * @param amountKava how many tokens to stake in KAVA
+   * @param restakeRewards If enabled, the rewards will be automatically restaked
+   * @param granteeAddress validator grantee address
+   */
+  async craftStakeTx(
+    accountId: string,
+    pubkey: string,
+    validatorAddress: string,
+    amountKava: number,
+    restakeRewards: boolean = false,
+    granteeAddress?: string,
+  ): Promise<CosmosTx> {
+    const { data } = await api.post<CosmosTx>(`/v1/kava/transaction/stake`, {
+      account_id: accountId,
+      pubkey: pubkey,
+      validator: validatorAddress,
+      amount_ukava: this.kavaToUkava(amountKava.toString()),
+      restake_rewards: restakeRewards,
+      grantee_address: granteeAddress,
+    });
+    return data;
+  }
+
+  /**
+   * Craft kava withdraw rewards transaction
+   * @param pubkey wallet pubkey, this is different from the wallet address
+   * @param validatorAddress validator address to which the delegation has been made
+   */
+  async craftWithdrawRewardsTx(pubkey: string, validatorAddress: string): Promise<CosmosTx> {
+    const { data } = await api.post<CosmosTx>(`/v1/kava/transaction/withdraw-rewards`, {
+      pubkey: pubkey,
+      validator: validatorAddress,
+    });
+    return data;
+  }
+
+  /**
+   * Craft kava restake rewards transaction
+   * @param pubkey wallet pubkey, this is different from the wallet address
+   * @param validatorAddress validator address to which the delegation has been made
+   * @param granteeAddress validator grantee address
+   */
+  async craftRestakeRewardsTx(pubkey: string, validatorAddress: string, granteeAddress: string): Promise<CosmosTx> {
+    const { data } = await api.post<CosmosTx>(`/v1/kava/transaction/restake-rewards`, {
+      pubkey: pubkey,
+      validator_address: validatorAddress,
+      grantee_address: granteeAddress,
+    });
+    return data;
+  }
+
+  /**
+   * Craft kava unstaking transaction
+   * @param pubkey wallet pubkey, this is different from the wallet address
+   * @param validatorAddress validator address to which the delegation has been made
+   * @param amountKava how many tokens to undelegate in KAVA
+   */
+  async craftUnstakeTx(pubkey: string, validatorAddress: string, amountKava?: number): Promise<CosmosTx> {
+    const { data } = await api.post<CosmosTx>(`/v1/kava/transaction/unstake`, {
+      pubkey: pubkey,
+      validator: validatorAddress,
+      amount_kava: amountKava ? this.kavaToUkava(amountKava.toString()) : undefined,
+    });
+    return data;
+  }
+
+  /**
+   * Craft kava redelegate transaction
+   * @param accountId id of the kiln account to use for the new stake
+   * @param pubkey wallet pubkey, this is different from the wallet address
+   * @param validatorSourceAddress validator address of the current delegation
+   * @param validatorDestinationAddress validator address to which the delegation will be moved
+   * @param amountKava how many tokens to redelegate in KAVA
+   */
+  async craftRedelegateTx(
+    accountId: string,
+    pubkey: string,
+    validatorSourceAddress: string,
+    validatorDestinationAddress: string,
+    amountKava?: number,
+  ): Promise<CosmosTx> {
+    const { data } = await api.post<CosmosTx>(`/v1/kava/transaction/redelegate`, {
+      account_id: accountId,
+      pubkey: pubkey,
+      validator_source: validatorSourceAddress,
+      validator_destination: validatorDestinationAddress,
+      amount_ukava: amountKava ? this.kavaToUkava(amountKava.toString()) : undefined,
+    });
+    return data;
+  }
+
+  /**
+   * Sign transaction with given integration
+   * @param integration custody solution to sign with
+   * @param tx raw transaction
+   * @param note note to identify the transaction in your custody solution
+   */
+  async sign(integration: Integration, tx: CosmosTx, note?: string): Promise<CosmosSignedTx> {
+    const payload = {
+      rawMessageData: {
+        messages: [
+          {
+            content: tx.data.unsigned_tx_hash,
+          },
+        ],
+      },
+    };
+    const fbNote = note ? note : "KAVA tx from @kilnfi/sdk";
+    const signer = this.getFbSigner(integration);
+    const fbTx = await signer.sign(payload, "KAVA_KAVA", fbNote);
+    const signature: string = fbTx.signedMessages![0].signature.fullSig;
+    const { data } = await api.post<CosmosSignedTx>(`/v1/kava/transaction/prepare`, {
+      pubkey: tx.data.pubkey,
+      tx_body: tx.data.tx_body,
+      tx_auth_info: tx.data.tx_auth_info,
+      signature: signature,
+    });
+    data.data.fireblocks_tx = fbTx;
+    return data;
+  }
+
+  /**
+   * Broadcast transaction to the network
+   * @param signedTx
+   */
+  async broadcast(signedTx: CosmosSignedTx): Promise<CosmosTxHash> {
+    const { data } = await api.post<CosmosTxHash>(`/v1/kava/transaction/broadcast`, {
+      tx_serialized: signedTx.data.signed_tx_serialized,
+    });
+    return data;
+  }
+
+  /**
+   * Get transaction status
+   * @param txHash
+   */
+  async getTxStatus(txHash: string): Promise<CosmosTxStatus> {
+    const { data } = await api.get<CosmosTxStatus>(`/v1/kava/transaction/status?tx_hash=${txHash}`);
+    return data;
+  }
+
+  /**
+   * Decode transaction
+   * @param txSerialized transaction serialized
+   */
+  async decodeTx(txSerialized: string): Promise<DecodedTxRaw> {
+    const { data } = await api.get<DecodedTxRaw>(`/v1/kava/transaction/decode?tx_serialized=${txSerialized}`);
+    return data;
+  }
+}