Add CJPY (#301)

* Add CJPY

* add CJPY

* add CJPY

Author: take3315

src/adapters/peggedAssets/convertible-jpy-token/index.ts

@@ -0,0 +1,56 @@
+const sdk = require("@defillama/sdk");
+import { sumSingleBalance } from "../helper/generalUtil";
+import {
+  ChainBlocks,
+  PeggedIssuanceAdapter,
+  Balances,
+} from "../peggedAsset.type";
+
+type ChainContracts = {
+  [chain: string]: {
+    [contract: string]: string[];
+  };
+};
+
+const chainContracts: ChainContracts = {
+  ethereum: {
+    issued: ["0x1cfa5641c01406ab8ac350ded7d735ec41298372"],
+  },
+};
+
+async function chainMinted(chain: string, decimals: number) {
+  return async function (
+    _timestamp: number,
+    _ethBlock: number,
+    _chainBlocks: ChainBlocks
+  ) {
+    let balances = {} as Balances;
+    for (let issued of chainContracts[chain].issued) {
+      const totalSupply = (
+        await sdk.api.abi.call({
+          abi: "erc20:totalSupply",
+          target: issued,
+          block: _chainBlocks?.[chain],
+          chain: chain,
+        })
+      ).output;
+      sumSingleBalance(
+        balances,
+        "peggedJPY",
+        totalSupply / 10 ** decimals,
+        "issued",
+        false
+      );
+    }
+    return balances;
+  };
+}
+
+const adapter: PeggedIssuanceAdapter = {
+  ethereum: {
+    minted: chainMinted("ethereum", 18),
+    unreleased: async () => ({}),
+  },
+};
+
+export default adapter;

src/adapters/peggedAssets/index.ts

@@ -176,6 +176,7 @@ import fxrusd from "./fx-rusd";
 import pxdc from "./powercity-pxdc";
 import fdx from "./fathom-dollar"
 import uno from "./nostra-uno";
+import cjpy from "./convertible-jpy-token";
 
 export default {
   tether,
@@ -356,4 +357,5 @@ export default {
    "powercity-pxdc": pxdc,
    "fathom-dollar": fdx,
    "nostra-uno": uno,
+   "convertible-jpy-token": cjpy,
 };

src/peggedData/peggedData.ts

@@ -3585,5 +3585,25 @@ export default [
     auditLinks: null,
     twitter: "https://twitter.com/USD_3",
     wiki: "https://app.reserve.org/ethereum/token/0x0d86883faf4ffd7aeb116390af37746f45b6f378/overview",
- }
+ },
+ {
+  id: "179",
+ name: "CJPY",
+ address: "0x1cfa5641c01406ab8ac350ded7d735ec41298372",
+ symbol: "CJPY",
+ url: "https://app.yamato.fi/#/",
+ description:
+   "Yamato Protocol is a crypto-asset overcollateralized stable coin issuance protocol. V1 allows the issuance of CJPY (“Convertible JPY”, a Japanese Yen equivalent coin) using ETH as collateral.",
+ mintRedeemDescription:
+   "Users deposit ETH as collateral to generate the debt token CJPY.",
+ onCoinGecko: "true",
+ gecko_id: "convertible-jpy-token",
+ cmcId: null,
+ pegType: "peggedJPY",
+ pegMechanism: "crypto-backed",
+ priceSource: "coingecko",
+ auditLinks: "https://docs.yamato.fi/v/en/audit",
+ twitter: "https://twitter.com/DeFiGeekJapanEN",
+ wiki: "https://docs.yamato.fi/v/en",
+}
 ] as PeggedAsset[];