feat: svr <> regular adapters comparative report

src/cli.ts

@@ -7,6 +7,7 @@ import {addCommand as addFork} from './commands/fork';
 import {addCommand as addGovernance} from './commands/governance';
 import {addCommand as addIpfsCommand} from './commands/ipfsUpload';
 import {addCommand as addCapoCommand} from './commands/capo';
+import {addCommand as addCapoSvrCommand} from './commands/capoSvr';
 
 const program = new Command();
 
@@ -32,5 +33,6 @@ addDiffSnapshots(program);
 addFork(program);
 addIpfsCommand(program);
 addCapoCommand(program);
+addCapoSvrCommand(program);
 
 program.parse();

src/commands/capoSvr.ts

@@ -0,0 +1,22 @@
+import fs from 'node:fs';
+import type {Command} from '@commander-js/extra-typings';
+import {generateSvrCapoReport} from '../reports/capo-svr-comparative-report';
+import {readJsonFile, readJsonString} from '../utils/json';
+
+export function addCommand(program: Command) {
+  program
+    .command('capo-svr-report')
+    .description('generate a capo svr comparative report')
+    .argument('<source>')
+    .option('-o, --out <string>', 'output path')
+    .option('--stringMode', 'expects input to be a string, not paths')
+    .action(async (_source, options) => {
+      const source = options.stringMode ? readJsonString(_source) : readJsonFile(_source);
+      const content = await generateSvrCapoReport(source);
+      if (options.out) {
+        fs.writeFileSync(options.out, content);
+      } else {
+        console.log(content);
+      }
+    });
+}

src/index.ts

@@ -7,3 +7,5 @@ export * from './govv3/generateProposalReport';
 export * from './utils/tenderlyClient';
 export * from './utils/logger';
 export * from './govv3/utils/checkAddress';
+export * from './reports/capo-report';
+export * from './reports/capo-svr-comparative-report';

src/reports/__snapshots__/capo-svr-report.spec.ts.snap

@@ -0,0 +1,37 @@
+// Vitest Snapshot v1, https://vitest.dev/guide/snapshot.html
+
+exports[`capo svr report > should generate a well formatted capo svr report 1`] = `
+"# Capo Comparative Report
+
+# Capped wstETH / stETH(ETH) / USD 
+
+- Difference between adapters using SVR and regular Chainlink Feeds
+
+| SVR Adapter | Regular Adapter | Diff | Date |
+| --- | --- | --- | --- |
+| 1880.1097014 | 1880.16617657 | 0.00% | 12 Apr 2025 |
+| 1940.99317901 | 1934.84763392 | 0.32% | 13 Apr 2025 |
+| 1951.25160577 | 1948.99310701 | 0.12% | 14 Apr 2025 |
+| 1968.85656094 | 1968.56171868 | 0.01% | 15 Apr 2025 |
+| 1880.44218254 | 1880.88400462 | 0.02% | 16 Apr 2025 |
+| 1927.14919798 | 1921.9665194 | 0.27% | 17 Apr 2025 |
+| 1901.98709042 | 1901.24372975 | 0.04% | 18 Apr 2025 |
+| 1922.66605311 | 1922.94047495 | 0.01% | 19 Apr 2025 |
+| 1908.33882018 | 1906.22505555 | 0.11% | 20 Apr 2025 |
+| 1973.33083291 | 1970.15250316 | 0.16% | 21 Apr 2025 |
+| 1948.43062491 | 1949.37422474 | 0.05% | 22 Apr 2025 |
+| 2160.35296377 | 2171.82424304 | 0.53% | 23 Apr 2025 |
+| 2093.83167086 | 2093.91812992 | 0.00% | 24 Apr 2025 |
+| 2148.42289872 | 2146.33325394 | 0.10% | 25 Apr 2025 |
+| 2146.93062115 | 2146.64704136 | 0.01% | 26 Apr 2025 |
+| 2167.39047482 | 2161.98612144 | 0.25% | 27 Apr 2025 |
+| 2169.22825978 | 2170.50143613 | 0.06% | 28 Apr 2025 |
+| 2183.31686871 | 2183.95464045 | 0.03% | 29 Apr 2025 |
+| 2106.14087107 | 2100.66019434 | 0.26% | 30 Apr 2025 |
+| 2209.6315434 | 2213.95366061 | 0.20% | 01 May 2025 |
+| 2215.33523206 | 2216.96923478 | 0.07% | 02 May 2025 |
+| 2207.45309063 | 2207.8434084 | 0.02% | 03 May 2025 |
+| 2196.18873716 | 2196.94841401 | 0.03% | 04 May 2025 |
+| 2173.76096755 | 2173.72491546 | 0.00% | 05 May 2025 |
+"
+`;

src/reports/capo-svr-comparative-report.ts

@@ -0,0 +1,65 @@
+import {formatUnits} from 'viem';
+import {CapoSvrSnapshot} from './snapshot-types';
+
+type Comparative = {
+  regularAdapterPrice: string;
+  svrAdapterPrice: string;
+  diff: string;
+  date: string;
+};
+
+export async function generateSvrCapoReport(snapshot: CapoSvrSnapshot) {
+  let comparative: Comparative[] = [];
+
+  for (const key in snapshot.comparative) {
+    const price = snapshot.comparative[key];
+
+    const svrAdapterPrice = formatUnits(BigInt(price.svrAdapterPrice), snapshot.decimals);
+    const regularAdapterPrice = formatUnits(BigInt(price.regularAdapterPrice), snapshot.decimals);
+    const difference =
+      Number(svrAdapterPrice) > Number(regularAdapterPrice)
+        ? Number(svrAdapterPrice) - Number(regularAdapterPrice)
+        : Number(regularAdapterPrice) - Number(svrAdapterPrice);
+
+    const diff = (
+      (100 * difference) /
+      ((Number(svrAdapterPrice) + Number(regularAdapterPrice)) / 2)
+    ).toFixed(2);
+
+    const formattedDate = formatTimestamp(price.timestamp);
+
+    comparative.push({
+      svrAdapterPrice,
+      regularAdapterPrice,
+      diff,
+      date: formattedDate,
+    });
+  }
+
+  comparative = comparative.slice(snapshot.minSnapshotDelay);
+
+  // generate md report
+  let content = '';
+  content += `# Capo Comparative Report\n\n`;
+  content += `# ${snapshot.sourceName} \n\n`;
+  content += `- Difference between adapters using SVR and regular Chainlink Feeds\n\n`;
+  content += `| SVR Adapter | Regular Adapter | Diff | Date |\n`;
+  content += `| --- | --- | --- | --- |\n`;
+  comparative.forEach((price) => {
+    content += `| ${price.svrAdapterPrice} | ${price.regularAdapterPrice} | ${price.diff}% | ${price.date} |\n`;
+  });
+  return content;
+}
+
+function formatTimestamp(timestampInSec: number) {
+  // Create a new Date object from the timestamp in seconds
+  const date = new Date(timestampInSec * 1000);
+
+  // Use the Intl.DateTimeFormat API to format the date
+  return new Intl.DateTimeFormat('en-GB', {
+    year: 'numeric',
+    month: 'short',
+    day: '2-digit',
+    timeZone: 'GMT',
+  }).format(date);
+}

src/reports/capo-svr-report.spec.ts

@@ -0,0 +1,16 @@
+import {describe, expect, it} from 'vitest';
+import {readJsonFile} from '../utils/json';
+import {generateSvrCapoReport} from './capo-svr-comparative-report';
+
+describe('capo svr report', () => {
+  it(
+    'should generate a well formatted capo svr report',
+    async () => {
+      const snapshot = readJsonFile('/src/reports/mocks/capoSvr.json');
+      const content = await generateSvrCapoReport(snapshot);
+      console.log(content);
+      expect(content).toMatchSnapshot();
+    },
+    {timeout: 30000},
+  );
+});

src/reports/mocks/capoSvr.json

@@ -0,0 +1,162 @@
+{
+  "comparative": {
+    "22199900": {
+      "regularAdapterPrice": 217666375221,
+      "svrAdapterPrice": 217554419401,
+      "timestamp": 1743822131
+    },
+    "22207200": {
+      "regularAdapterPrice": 216795440985,
+      "svrAdapterPrice": 216644202291,
+      "timestamp": 1743910247
+    },
+    "22214500": {
+      "regularAdapterPrice": 184904466888,
+      "svrAdapterPrice": 184331232930,
+      "timestamp": 1743998399
+    },
+    "22221800": {
+      "regularAdapterPrice": 191382628592,
+      "svrAdapterPrice": 190799419233,
+      "timestamp": 1744086611
+    },
+    "22229100": {
+      "regularAdapterPrice": 172703894879,
+      "svrAdapterPrice": 172730277631,
+      "timestamp": 1744174619
+    },
+    "22236400": {
+      "regularAdapterPrice": 194477533416,
+      "svrAdapterPrice": 194601135762,
+      "timestamp": 1744262495
+    },
+    "22243700": {
+      "regularAdapterPrice": 185570748959,
+      "svrAdapterPrice": 185112817156,
+      "timestamp": 1744350443
+    },
+    "22251000": {
+      "regularAdapterPrice": 188016617657,
+      "svrAdapterPrice": 188010970140,
+      "timestamp": 1744438283
+    },
+    "22258300": {
+      "regularAdapterPrice": 193484763392,
+      "svrAdapterPrice": 194099317901,
+      "timestamp": 1744526231
+    },
+    "22265600": {
+      "regularAdapterPrice": 194899310701,
+      "svrAdapterPrice": 195125160577,
+      "timestamp": 1744614059
+    },
+    "22272900": {
+      "regularAdapterPrice": 196856171868,
+      "svrAdapterPrice": 196885656094,
+      "timestamp": 1744702151
+    },
+    "22280200": {
+      "regularAdapterPrice": 188088400462,
+      "svrAdapterPrice": 188044218254,
+      "timestamp": 1744790159
+    },
+    "22287500": {
+      "regularAdapterPrice": 192196651940,
+      "svrAdapterPrice": 192714919798,
+      "timestamp": 1744878263
+    },
+    "22294800": {
+      "regularAdapterPrice": 190124372975,
+      "svrAdapterPrice": 190198709042,
+      "timestamp": 1744966187
+    },
+    "22302100": {
+      "regularAdapterPrice": 192294047495,
+      "svrAdapterPrice": 192266605311,
+      "timestamp": 1745054243
+    },
+    "22309400": {
+      "regularAdapterPrice": 190622505555,
+      "svrAdapterPrice": 190833882018,
+      "timestamp": 1745142263
+    },
+    "22316700": {
+      "regularAdapterPrice": 197015250316,
+      "svrAdapterPrice": 197333083291,
+      "timestamp": 1745230343
+    },
+    "22324000": {
+      "regularAdapterPrice": 194937422474,
+      "svrAdapterPrice": 194843062491,
+      "timestamp": 1745318339
+    },
+    "22331300": {
+      "regularAdapterPrice": 217182424304,
+      "svrAdapterPrice": 216035296377,
+      "timestamp": 1745406467
+    },
+    "22338600": {
+      "regularAdapterPrice": 209391812992,
+      "svrAdapterPrice": 209383167086,
+      "timestamp": 1745494463
+    },
+    "22345900": {
+      "regularAdapterPrice": 214633325394,
+      "svrAdapterPrice": 214842289872,
+      "timestamp": 1745582423
+    },
+    "22353200": {
+      "regularAdapterPrice": 214664704136,
+      "svrAdapterPrice": 214693062115,
+      "timestamp": 1745670383
+    },
+    "22360500": {
+      "regularAdapterPrice": 216198612144,
+      "svrAdapterPrice": 216739047482,
+      "timestamp": 1745758211
+    },
+    "22367800": {
+      "regularAdapterPrice": 217050143613,
+      "svrAdapterPrice": 216922825978,
+      "timestamp": 1745846207
+    },
+    "22375100": {
+      "regularAdapterPrice": 218395464045,
+      "svrAdapterPrice": 218331686871,
+      "timestamp": 1745934335
+    },
+    "22382400": {
+      "regularAdapterPrice": 210066019434,
+      "svrAdapterPrice": 210614087107,
+      "timestamp": 1746022607
+    },
+    "22389700": {
+      "regularAdapterPrice": 221395366061,
+      "svrAdapterPrice": 220963154340,
+      "timestamp": 1746110987
+    },
+    "22397000": {
+      "regularAdapterPrice": 221696923478,
+      "svrAdapterPrice": 221533523206,
+      "timestamp": 1746199583
+    },
+    "22404300": {
+      "regularAdapterPrice": 220784340840,
+      "svrAdapterPrice": 220745309063,
+      "timestamp": 1746287867
+    },
+    "22411600": {
+      "regularAdapterPrice": 219694841401,
+      "svrAdapterPrice": 219618873716,
+      "timestamp": 1746376319
+    },
+    "22418900": {
+      "regularAdapterPrice": 217372491546,
+      "svrAdapterPrice": 217376096755,
+      "timestamp": 1746464591
+    }
+  },
+  "decimals": 8,
+  "minSnapshotDelay": 7,
+  "sourceName": "Capped wstETH / stETH(ETH) / USD"
+}

src/reports/snapshot-types.ts

@@ -165,3 +165,18 @@ export const capoSnapshotSchema = z.object({
 });
 
 export type CapoSnapshot = z.infer<typeof capoSnapshotSchema>;
+
+export const capoSvrPriceSchema = z.object({
+  regularAdapterPrice: z.number(),
+  svrAdapterPrice: z.number(),
+  timestamp: z.number(),
+});
+
+export const capoSvrSnapshotSchema = z.object({
+  sourceName: z.string(),
+  decimals: z.number(),
+  minSnapshotDelay: z.number(),
+  comparative: z.record(capoSvrPriceSchema),
+});
+
+export type CapoSvrSnapshot = z.infer<typeof capoSvrSnapshotSchema>;