add encointer

.papi/polkadot-api.json

@@ -41,6 +41,11 @@
     "pasAh": {
       "chain": "paseo_asset_hub",
       "metadata": ".papi/metadata/pasAh.scale"
+    },
+    "ksmEnc": {
+      "chain": "ksmcc3_encointer",
+      "wsUrl": "wss://kusama.api.encointer.org",
+      "metadata": ".papi/metadata/ksmEnc.scale"
     }
   }
 }

src/api/chains.ts

@@ -29,6 +29,7 @@ export const CHAIN_NAMES: Record<ChainId, string> = {
   dotAh: "Polkadot AssetHub",
   ksm: "Kusama RelayChain",
   ksmAh: "Kusama AssetHub",
+  ksmEnc: "Kusama Encointer",
   wnd: "Westend RelayChain",
   wndAh: "Westend AssetHub",
   roc: "Rococo RelayChain",

src/api/clients/index.ts

@@ -3,6 +3,7 @@ export { dotAhClient } from "./dotAh"
 
 export { ksmClient } from "./ksm"
 export { ksmAhClient } from "./ksmAh"
+export { ksmEncClient } from "./ksmEnc"
 
 export { wndClient } from "./wnd"
 export { wndAhClient } from "./wndAh"

src/api/clients/ksmEnc.ts

@@ -0,0 +1,13 @@
+import { createClient } from "polkadot-api"
+import { getSmProvider } from "polkadot-api/sm-provider"
+import { smoldot } from "./smoldot"
+import { ksmRelayChain } from "./ksm"
+
+const smoldotParaChain = Promise.all([
+  ksmRelayChain,
+  import("polkadot-api/chains/ksmcc3_encointer"),
+]).then(([relayChain, { chainSpec }]) =>
+  smoldot.addChain({ chainSpec, potentialRelayChains: [relayChain] }),
+)
+
+export const ksmEncClient = createClient(getSmProvider(smoldotParaChain))

src/api/common.ts

@@ -60,6 +60,21 @@ export const fromRelayToAssetHub = (
   weight_limit: XcmV3WeightLimit.Unlimited(),
 })
 
+export const fromRelayToEncointer = (
+  from: PolkadotSigner,
+  amount: bigint,
+  to?: SS58String,
+) => ({
+  dest: XcmVersionedLocation.V3({
+    parents: 0,
+    interior: XcmV3Junctions.X1(XcmV3Junction.Parachain(1001)),
+  }),
+  beneficiary: getBeneficiary(to ?? from.publicKey),
+  assets: getNativeAsset(0, amount),
+  fee_asset_item: 0,
+  weight_limit: XcmV3WeightLimit.Unlimited(),
+})
+
 export const fromAssetHubToRelay = (
   from: PolkadotSigner,
   amount: bigint,
@@ -81,6 +96,27 @@ export const fromAssetHubToRelay = (
   weight_limit: XcmV3WeightLimit.Unlimited(),
 })
 
+export const fromEncointerToRelay = (
+  from: PolkadotSigner,
+  amount: bigint,
+  to?: SS58String,
+) => ({
+  dest: {
+    type: "V3" as const,
+    value: {
+      parents: 1,
+      interior: {
+        type: "Here" as const,
+        value: undefined,
+      },
+    },
+  },
+  beneficiary: getBeneficiary(to ?? from.publicKey),
+  assets: getNativeAsset(1, amount),
+  fee_asset_item: 0,
+  weight_limit: XcmV3WeightLimit.Unlimited(),
+})
+
 export const fromAssetHubToForeign = (
   network: XcmV3JunctionNetworkId,
   parachainId: number,
@@ -101,6 +137,26 @@ export const fromAssetHubToForeign = (
   weight_limit: XcmV3WeightLimit.Unlimited(),
 })
 
+export const fromEncointerToForeign = (
+  network: XcmV3JunctionNetworkId,
+  parachainId: number,
+  assets: XcmVersionedAssets,
+  from: PolkadotSigner,
+  to?: SS58String,
+) => ({
+  dest: XcmVersionedLocation.V3({
+    parents: 2,
+    interior: XcmV3Junctions.X2([
+      XcmV3Junction.GlobalConsensus(network),
+      XcmV3Junction.Parachain(parachainId),
+    ]),
+  }),
+  beneficiary: getBeneficiary(to ?? from.publicKey),
+  assets,
+  fee_asset_item: 0,
+  weight_limit: XcmV3WeightLimit.Unlimited(),
+})
+
 /*
 export const toAssetHub = (
   from: PolkadotSigner,

src/api/ksm/enc.ts

@@ -0,0 +1,36 @@
+import {
+  XcmV3JunctionNetworkId,
+  ksmEnc,
+} from "@polkadot-api/descriptors"
+import { ksmEncClient } from "@/api/clients"
+import { AssetInChain } from "../types"
+import {
+  fromEncointerToForeign,
+  fromEncointerToRelay,
+  getNativeAsset,
+  watchAccoutFreeBalance,
+} from "../common"
+
+const api = ksmEncClient.getTypedApi(ksmEnc)
+
+const ksm: AssetInChain = {
+  chain: "ksmEnc",
+  symbol: "KSM",
+  watchFreeBalance: watchAccoutFreeBalance(api),
+  teleport: {
+    ksm: (...args) =>
+      api.tx.PolkadotXcm.limited_teleport_assets(fromEncointerToRelay(...args)),
+    dotAh: (from, amount, to) =>
+      api.tx.PolkadotXcm.limited_reserve_transfer_assets(
+        fromEncointerToForeign(
+          XcmV3JunctionNetworkId.Polkadot(),
+          1000,
+          getNativeAsset(1, amount),
+          from,
+          to,
+        ),
+      ),
+  },
+}
+
+export default [ksm]

src/api/ksm/index.ts

@@ -1,4 +1,5 @@
 import relay from "./relay"
 import ah from "./ah"
+import enc from "./enc"
 
-export default [...relay, ...ah]
+export default [...relay, ...ah, ...enc]

src/api/ksm/relay.ts

@@ -1,7 +1,7 @@
 import { ksm as descriptors } from "@polkadot-api/descriptors"
 import { ksmClient } from "@/api/clients"
 import { AssetInChain } from "../types"
-import { fromRelayToAssetHub, watchAccoutFreeBalance } from "../common"
+import { fromRelayToAssetHub, fromRelayToEncointer, watchAccoutFreeBalance } from "../common"
 
 const api = ksmClient.getTypedApi(descriptors)
 
@@ -12,6 +12,8 @@ const ksm: AssetInChain = {
   teleport: {
     ksmAh: (...args) =>
       api.tx.XcmPallet.limited_teleport_assets(fromRelayToAssetHub(...args)),
+    ksmEnc: (...args) =>
+      api.tx.XcmPallet.limited_teleport_assets(fromRelayToEncointer(...args)),
   },
 }
 

src/api/types.ts

@@ -8,6 +8,7 @@ export type ChainId =
   | "wndAh"
   | "ksm"
   | "ksmAh"
+  | "ksmEnc"
   | "roc"
   | "rocAh"
   | "pas"