Apply changes from code we received from a retired Bisq dev.

As we don't have a git version to know on which version was based on, it was hard to merge.
I tried to not delete any files from latest snapshot (before Bisq got removed from mempool) and I tried to keep new changes which are likely unreleated to his changes. Though its messy and requires a dev familiar with the used tech stack to clear all that up.

_README.md

@@ -0,0 +1,43 @@
+## Quick Setup for Development
+
+  (prerequisite: bisq-daonode is installed & running)
+
+### Install node, npm, n
+
+```
+    curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash
+    source ~/.bashrc
+    nvm install v16.14
+    node -v
+    npm -v
+    npm install -g n
+    n --version
+```
+
+### Explorer Backend
+
+
+```
+    cd mempool/backend
+    npm install
+    npm run build
+    npm run start
+```
+
+    logging should show it connecting to Bisq, retrieving blocks, prices, offers, trades etc.
+
+### Explorer Frontend
+
+```
+    cd mempool/frontend
+    npm install
+    npm run build
+    npm run serve
+```
+
+    the explorer should be visible in a browser at http://localhost:4200    
+    alternately, to have the frontend served by nginx:
+        `cp mempool/frontend/dist/mempool/browser/en-US/* /var/www/mempool`
+
+
+

backend/npm_package.sh

@@ -10,8 +10,5 @@ rm -rf package
 # Move JS and deps
 mv dist package
 cp -R node_modules package
-# Remove symlink for rust-gbt and insert real folder
-rm package/node_modules/rust-gbt
-cp -R rust-gbt package/node_modules
 # Clean up deps
 npm run package-rm-build-deps

backend/npm_package_rm_build_deps.sh

@@ -5,5 +5,4 @@ set -e
 cd package/node_modules
 rm -r \
   typescript \
-  @typescript-eslint \
-  @napi-rs
+  @typescript-eslint

backend/package.json

@@ -1,62 +1,50 @@
 {
-  "name": "mempool-backend",
-  "version": "3.0.0-dev",
-  "description": "Bitcoin mempool visualizer and blockchain explorer backend",
+  "name": "bisq-explorer-backend",
+  "version": "1.0.0-dev",
+  "description": "Bisq explorer backend",
   "license": "GNU Affero General Public License v3.0",
-  "homepage": "https://mempool.space",
+  "homepage": "https://bisq.network",
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/mempool/mempool"
+    "url": "git+https://github.com/bisq-network/bisq"
   },
   "bugs": {
-    "url": "https://github.com/mempool/mempool/issues"
+    "url": "https://github.com/bisq-network/bisq/issues"
   },
   "keywords": [
     "bitcoin",
-    "mempool",
+    "bisq",
     "blockchain",
-    "explorer",
-    "liquid",
-    "lightning"
+    "explorer"
   ],
   "main": "index.ts",
   "scripts": {
     "tsc": "./node_modules/typescript/bin/tsc -p tsconfig.build.json",
     "build": "npm run tsc && npm run create-resources",
-    "clean": "rm -rf ./dist/ ./node_modules/ ./package/ ./rust-gbt/",
-    "create-resources": "cp ./src/tasks/price-feeds/mtgox-weekly.json ./dist/tasks && node dist/api/fetch-version.js",
+    "create-resources": "node dist/api/fetch-version.js",
     "package": "./npm_package.sh",
     "package-rm-build-deps": "./npm_package_rm_build_deps.sh",
-    "preinstall": "cd ../rust/gbt && npm run build-release && npm run to-backend",
     "start": "node --max-old-space-size=2048 dist/index.js",
     "start-production": "node --max-old-space-size=16384 dist/index.js",
-    "reindex-updated-pools": "npm run start-production --update-pools",
-    "reindex-all-blocks": "npm run start-production --update-pools --reindex-blocks",
     "test": "./node_modules/.bin/jest --coverage",
     "test:ci": "CI=true ./node_modules/.bin/jest --coverage",
     "lint": "./node_modules/.bin/eslint . --ext .ts",
     "lint:fix": "./node_modules/.bin/eslint . --ext .ts --fix",
     "prettier": "./node_modules/.bin/prettier --write \"src/**/*.{js,ts}\""
   },
   "dependencies": {
-    "@babel/core": "^7.24.0",
-    "@mempool/electrum-client": "1.1.9",
+    "@babel/core": "^7.23.2",
     "@types/node": "^18.15.3",
     "axios": "~1.6.1",
-    "bitcoinjs-lib": "~6.1.3",
-    "crypto-js": "~4.2.0",
     "express": "~4.18.2",
-    "maxmind": "~4.3.11",
     "mysql2": "~3.9.1",
-    "rust-gbt": "file:./rust-gbt",
-    "redis": "^4.6.6",
     "socks-proxy-agent": "~7.0.0",
     "typescript": "~4.9.3",
     "ws": "~8.13.0"
   },
   "devDependencies": {
     "@babel/code-frame": "^7.18.6",
-    "@babel/core": "^7.24.0",
+    "@babel/core": "^7.23.2",
     "@types/compression": "^1.7.2",
     "@types/crypto-js": "^4.1.1",
     "@types/express": "^4.17.17",

backend/src/api/backend-info.ts

@@ -24,7 +24,6 @@ class BackendInfo {
       hostname: os.hostname(),
       version: versionInfo.version,
       gitCommit: versionInfo.gitCommit,
-      lightning: config.LIGHTNING.ENABLED
     };
   }
 

backend/src/api/bisq/bisq.routes.ts

@@ -4,17 +4,20 @@ import { RequiredSpec } from '../../mempool.interfaces';
 import bisq from './bisq';
 import { MarketsApiError } from './interfaces';
 import marketsApi from './markets-api';
+import bisqPriceService from './price-service';
 
 class BisqRoutes {
   public initRoutes(app: Application) {
     app
       .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/stats', this.getBisqStats)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/dao-cycles', this.getDaoCycles)
       .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/tx/:txId', this.getBisqTransaction)
       .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/block/:hash', this.getBisqBlock)
       .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/blocks/tip/height', this.getBisqTip)
       .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/blocks/:index/:length', this.getBisqBlocks)
       .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/address/:address', this.getBisqAddress)
       .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/txs/:index/:length', this.getBisqTransactions)
+      .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/price/:currency', this.getBisqMarketPrice)
       .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/currencies', this.getBisqMarketCurrencies.bind(this))
       .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/depth', this.getBisqMarketDepth.bind(this))
       .get(config.MEMPOOL.API_URL_PREFIX + 'bisq/markets/hloc', this.getBisqMarketHloc.bind(this))
@@ -33,22 +36,27 @@ class BisqRoutes {
     res.json(result);
   }
 
+  private getDaoCycles(req: Request, res: Response) {
+    const result = bisq.getDaoCycles();
+    res.json(result);
+  }
+
   private getBisqTip(req: Request, res: Response) {
     const result = bisq.getLatestBlockHeight();
     res.type('text/plain');
     res.send(result.toString());
   }
 
-  private getBisqTransaction(req: Request, res: Response) {
-    const result = bisq.getTransaction(req.params.txId);
+  private async getBisqTransaction(req: Request, res: Response) {
+    const result = await bisq.$getTransaction(req.params.txId);
     if (result) {
       res.json(result);
     } else {
       res.status(404).send('Bisq transaction not found');
     }
   }
 
-  private getBisqTransactions(req: Request, res: Response) {
+  private async getBisqTransactions(req: Request, res: Response) {
     const types: string[] = [];
     req.query.types = req.query.types || [];
     if (!Array.isArray(req.query.types)) {
@@ -64,37 +72,46 @@ class BisqRoutes {
 
     const index = parseInt(req.params.index, 10) || 0;
     const length = parseInt(req.params.length, 10) > 100 ? 100 : parseInt(req.params.length, 10) || 25;
-    const [transactions, count] = bisq.getTransactions(index, length, types);
+    const [transactions, count] = await bisq.$getTransactions(index, length, types);
     res.header('X-Total-Count', count.toString());
     res.json(transactions);
   }
 
-  private getBisqBlock(req: Request, res: Response) {
-    const result = bisq.getBlock(req.params.hash);
+  private async getBisqBlock(req: Request, res: Response) {
+    const result = await bisq.$getBlock(req.params.hash);
     if (result) {
       res.json(result);
     } else {
       res.status(404).send('Bisq block not found');
     }
   }
 
-  private getBisqBlocks(req: Request, res: Response) {
+  private async getBisqBlocks(req: Request, res: Response) {
     const index = parseInt(req.params.index, 10) || 0;
     const length = parseInt(req.params.length, 10) > 100 ? 100 : parseInt(req.params.length, 10) || 25;
-    const [transactions, count] = bisq.getBlocks(index, length);
+    const [transactions, count] = await bisq.$getBlocks(index, length);
     res.header('X-Total-Count', count.toString());
     res.json(transactions);
   }
 
-  private getBisqAddress(req: Request, res: Response) {
-    const result = bisq.getAddress(req.params.address.substr(1));
+  private async getBisqAddress(req: Request, res: Response) {
+    const result = await bisq.$getAddress(req.params.address.substr(1));
     if (result) {
       res.json(result);
     } else {
       res.status(404).send('Bisq address not found');
     }
   }
 
+  private async getBisqMarketPrice(req: Request, res: Response) {
+    const result = bisqPriceService.getPrice(req.params.currency);
+    if (result) {
+      res.json(result);
+    } else {
+      res.status(404).send('Bisq market price not found');
+    }
+  }
+
   private getBisqMarketCurrencies(req: Request, res: Response) {
     const constraints: RequiredSpec = {
       'type': {