Added CoinGecko price feed

package.json

@@ -17,11 +17,16 @@
     "big.js": "^6.1.1",
     "bitcoinjs-lib": "^6.0.1",
     "bn.js": "^5.2.0",
+    "colors": "^1.4.0",
     "dotenv": "^16.0.1",
+    "node-fetch": "2",
     "prettier": "^2.6.2",
     "semver": "^7.3.7",
     "sudo-fs-promise": "^1.0.1",
     "ts-node": "^10.7.0",
     "typescript": "^4.6.4"
+  },
+  "resolutions": {
+    "async": "2.6.4"
   }
 }

scripts/harvest.ts

@@ -7,11 +7,11 @@ async function main() {
   const ktContext = await setup()
   await ktContext.printStats()
   const karContext = await karuraApi()
-  await karContext.printStats()
+
   const kintHarvest = await ktContext.getKintPending()
   const ksmHarvest = Number(kintHarvest) * Number(await karContext.getKsmKintPrice())
-  console.log(`🌾 Harvestable Amount: ${kintHarvest} KINT / ${ksmHarvest.toFixed(2)} KSM`)
-  console.log('=============================')
+  await karContext.printStats(kintHarvest, ksmHarvest)
+
 
   const rl = readline.createInterface({ input, output })
   const answer1 = await rl.question(

static/tokens.ts

@@ -0,0 +1,5 @@
+export const kint = { Token: 'KINT' }
+export const ksm = { Token: 'KSM' }
+export const kbtc = { Token: 'KBTC' }
+export const kusd = { Token: 'KUSD' }
+export const kar = { Token: 'KAR' }

tsconfig.json

@@ -11,7 +11,7 @@
     // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
 
     /* Language and Environment */
-    "target": "es2018",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
+    "target": "es2022",                                  /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
     // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
     // "jsx": "preserve",                                /* Specify what JSX code is generated. */
     // "experimentalDecorators": true,                   /* Enable experimental support for TC39 stage 2 draft decorators. */
@@ -24,7 +24,7 @@
     // "useDefineForClassFields": true,                  /* Emit ECMAScript-standard-compliant class fields. */
 
     /* Modules */
-    "module": "commonjs",                                /* Specify what module code is generated. */
+    "module": "commonJs",                                /* Specify what module code is generated. */
     // "rootDir": "./",                                  /* Specify the root folder within your source files. */
     // "moduleResolution": "node",                       /* Specify how TypeScript looks up a file from a given module specifier. */
     // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */

utils/fetch.ts

@@ -0,0 +1,20 @@
+const fetch = require('node-fetch')
+const cgUri = 'https://api.coingecko.com/api/v3'
+
+export const getCgPrice = async (asset: string) => {
+  try {
+    const resp = await fetch(cgUri + `/simple/price?ids=${asset}&vs_currencies=usd`, { method: 'GET' })
+    const json = await resp.json()
+    return json[asset].usd
+  } catch (e) {
+    console.log("coingecko call failed with: ", e)
+    return -1
+  }
+}
+
+async function main() {
+  const price = await getCgPrice('kintsugi')
+  console.log(price)
+}
+
+// main()

utils/helpers.ts

@@ -1,18 +1,20 @@
 import 'dotenv/config'
 import { ApiPromise, WsProvider, Keyring } from '@polkadot/api'
 import { payments } from 'bitcoinjs-lib'
+import { getCgPrice } from '../utils/fetch'
 import Big from 'big.js'
 import { options } from '@acala-network/api'
-import { parseConfigFileTextToJson } from 'typescript'
-// const fs = require('fs')
-// var fs = require('@mh-cbon/sudo-fs');
+// import * as tokens from "../static/tokens"
+const fetch = require('node-fetch')
 var fs = require('sudo-fs-promise')
+var colors = require('colors')
 
 const kint = { Token: 'KINT' }
 const ksm = { Token: 'KSM' }
 const kbtc = { Token: 'KBTC' }
 const kusd = { Token: 'KUSD' }
 const kar = { Token: 'KAR' }
+const cgUri = 'https://api.coingecko.com/api/v3'
 
 const setupKeys = async (api: ApiPromise) => {
   let signer
@@ -294,14 +296,27 @@ export const karuraApi = async () => {
 
     return Number(kintPrice / ksmPrice).toFixed(5)
   }
-  const printStats = async () => {
-    // console.log(signer.addressRaw)
-    // console.log(signer.publicKey)
-    //   console.log(sig)
+  const printStats = async (kintHarvest, ksmHarvest) => {
+    const kintPrice = await getCgPrice('kintsugi')
+    const ksmPrice = await getCgPrice('kusama')
+
+    const kintInKsm = await getKsmKintPrice()
+    const kintInUsd = Number(kintInKsm) * ksmPrice
+
+    const diff = calcPercentages(kintPrice, kintInUsd)
+
     console.log(`🏠 KAR Address: ${address}`)
-    console.log(`🚗 KAR Balance: ${await getKarBalance()}`)
-    console.log(`🧮 KAR/KSM Price: ${await getKsmKintPrice()}`)
+    console.log(`🚗 KAR Balance (for fees): ${await getKarBalance()}`)
+    console.log(`🧮 Karura KINT Price: ${kintInKsm} KSM / $${kintInUsd.toFixed(2)}`)
+    printPercentages(kintPrice, kintInUsd)
+    console.log(
+      `🌾 Harvestable Amount: ${kintHarvest} KINT / ${ksmHarvest.toFixed(2)} KSM / $${(
+        kintPrice * Number(kintHarvest)
+      ).toFixed(2)}`
+    )
+    console.log('=============================')
   }
+
   // bridge from kintsugi
 
   const bridgeToKint = async (amount) => {
@@ -366,3 +381,22 @@ const submitTx = async (tx, signer) => {
 
   return details
 }
+
+const printPercentages = (num1: number, num2: number) => {
+  const percent = calcPercentages(num1, num2)
+
+  process.stdout.write(`🦎 Chain vs CoinGecko price: `)
+  if (percent > 0) {
+    process.stdout.write(colors.green(`${percent.toFixed(2)}%\n`))
+  } else {
+    process.stdout.write(colors.red(`${percent.toFixed(2)}%\n`))
+  }
+}
+
+const calcPercentages = (num1: number, num2: number) => {
+  const diff = num2 - num1
+  const ratio = diff / num1
+  const percent = ratio * 100
+
+  return percent
+}

yarn.lock

@@ -859,10 +859,12 @@ [email protected]:
   resolved "https://registry.yarnpkg.com/array-uniq/-/array-uniq-1.0.2.tgz#5fcc373920775723cfd64d65c64bef53bf9eba6d"
   integrity sha512-GVYjmpL05al4dNlKJm53mKE4w9OOLiuVHWorsIA3YVz+Hu0hcn6PtE3Ydl0EqU7v+7ABC4mjjWsnLUxbpno+CA==
 
-async@^1.5.2:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
-  integrity sha512-nSVgobk4rv61R9PUSDtYt7mPVB2olxNR5RWJcAsH676/ef11bUZwvu7+RGYrYauVdDPcO519v68wRhXQtxsV9w==
+[email protected], async@^1.5.2:
+  version "2.6.4"
+  resolved "https://registry.yarnpkg.com/async/-/async-2.6.4.tgz#706b7ff6084664cd7eae713f6f965433b5504221"
+  integrity sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==
+  dependencies:
+    lodash "^4.17.14"
 
 async@^3.2.3:
   version "3.2.3"
@@ -1043,6 +1045,11 @@ color-name@~1.1.4:
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.4.tgz#c2a09a87acbde69543de6f63fa3995c826c536a2"
   integrity sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==
 
+colors@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/colors/-/colors-1.4.0.tgz#c50491479d4c1bdaed2c9ced32cf7c7dc2360f78"
+  integrity sha512-a+UqTh4kgZg/SlGvfbzDHpgRu7AAQOmmqRHJnxhRZICKFUT91brVhNNt58CMWU9PsBbv3PDCZUHbVxuDiH2mtA==
+
 combined-stream@^1.0.8:
   version "1.0.8"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.8.tgz#c3d45a8b34fd730631a110a8a2520682b31d5a7f"
@@ -1449,6 +1456,11 @@ lodash.set@^4.3.2:
   resolved "https://registry.yarnpkg.com/lodash.set/-/lodash.set-4.3.2.tgz#d8757b1da807dde24816b0d6a84bea1a76230b23"
   integrity sha1-2HV7HagH3eJIFrDWqEvqGnYjCyM=
 
+lodash@^4.17.14:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
+
 lru-cache@^6.0.0:
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-6.0.0.tgz#6d6fe6570ebd96aaf90fcad1dafa3b2566db3a94"
@@ -1591,7 +1603,7 @@ nock@^13.2.4:
     lodash.set "^4.3.2"
     propagate "^2.0.0"
 
-node-fetch@^2.6.7:
+node-fetch@2, node-fetch@^2.6.7:
   version "2.6.7"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.7.tgz#24de9fba827e3b4ae44dc8b20256a379160052ad"
   integrity sha512-ZjMPFEfVx5j+y2yF35Kzx5sF7kDzxuDj6ziH4FFbOp87zKDZNx8yExJIb05OGF4Nlt9IHFIMBkRl41VdvcNdbQ==