auto open channel from Accounting record

dist/src/controllers/index.js

@@ -38,6 +38,7 @@ function set(app) {
         }
         media.cycleMediaToken();
         timers.reloadTimers();
+        queries.startWatchingUTXOs();
         app.get('/chats', chats.getChats);
         app.post('/group', chats.createGroupChat);
         app.put('/chats/:id', chats.updateChat);

dist/src/controllers/queries.js

@@ -18,6 +18,7 @@ const lightning = require("../utils/lightning");
 const wallet_1 = require("../utils/wallet");
 const jsonUtils = require("../utils/json");
 const sequelize_1 = require("sequelize");
+const node_fetch_1 = require("node-fetch");
 let queries = {};
 const hub_pubkey = '023d70f2f76d283c6c4e58109ee3a2816eb9d8feb40b23d62469060a2b2867b77f';
 function getPendingAccountings() {
@@ -61,17 +62,57 @@ function listUTXOs(req, res) {
     });
 }
 exports.listUTXOs = listUTXOs;
-// function genChannel(acc: Accounting) {
-// }
+function getSuggestedSatPerByte() {
+    return __awaiter(this, void 0, void 0, function* () {
+        const MAX_AMT = 250;
+        try {
+            const r = yield node_fetch_1.default('https://mempool.space/api/v1/fees/recommended');
+            const j = yield r.json();
+            return Math.min(MAX_AMT, j.hourFee);
+        }
+        catch (e) {
+            return MAX_AMT;
+        }
+    });
+}
+// https://mempool.space/api/v1/fees/recommended
+function genChannelAndConfirmAccounting(acc) {
+    return __awaiter(this, void 0, void 0, function* () {
+        const sat_per_byte = yield getSuggestedSatPerByte();
+        console.log("[WATCH]=> sat_per_byte", sat_per_byte);
+        try {
+            const r = yield lightning.openChannel({
+                node_pubkey: acc.pubkey,
+                local_funding_amount: acc.amount,
+                push_sat: 0,
+                sat_per_byte
+            });
+            console.log("[WATCH]=> CHANNEL OPENED!", r);
+            yield models_1.models.Accounting.update({
+                status: constants_1.default.statuses.confirmed,
+                fudingTxid: r.funding_txid_str
+            }, {
+                where: { id: acc.id }
+            });
+            console.log("[WATCH]=> ACCOUNTINGS UPDATED!");
+        }
+        catch (e) {
+            console.log('[ACCOUNTING] error creating channel', e);
+        }
+    });
+}
 function pollUTXOs() {
     return __awaiter(this, void 0, void 0, function* () {
+        console.log("[WATCH]=> pollUTXOs");
         const accs = yield getPendingAccountings();
         if (!accs)
             return;
-        accs.forEach(acc => {
+        console.log("[WATCH]=> accs", accs.length);
+        asyncForEach(accs, (acc) => __awaiter(this, void 0, void 0, function* () {
             if (acc.confirmations < 1)
                 return;
-        });
+            yield genChannelAndConfirmAccounting(acc);
+        }));
     });
 }
 function startWatchingUTXOs() {
@@ -197,4 +238,11 @@ exports.receiveQueryResponse = (payload) => __awaiter(void 0, void 0, void 0, fu
         console.log("=> ERROR receiveQueryResponse,", e);
     }
 });
+function asyncForEach(array, callback) {
+    return __awaiter(this, void 0, void 0, function* () {
+        for (let index = 0; index < array.length; index++) {
+            yield callback(array[index], index, array);
+        }
+    });
+}
 //# sourceMappingURL=queries.js.map

dist/src/models/ts/accounting.js

@@ -53,6 +53,10 @@ __decorate([
     sequelize_typescript_1.Column(sequelize_typescript_1.DataType.BIGINT),
     __metadata("design:type", Number)
 ], Accounting.prototype, "chanId", void 0);
+__decorate([
+    sequelize_typescript_1.Column,
+    __metadata("design:type", String)
+], Accounting.prototype, "fundingTxid", void 0);
 Accounting = __decorate([
     sequelize_typescript_1.Table({ tableName: 'sphinx_accountings', underscored: true })
 ], Accounting);

dist/src/models/ts/accounting.js.map

@@ -1 +1 @@
-{"version":3,"file":"accounting.js","sourceRoot":"","sources":["../../../../src/models/ts/accounting.ts"],"names":[],"mappings":";;;;;;;;;;;AAAA,+DAAsE;AAGtE,IAAqB,UAAU,GAA/B,MAAqB,UAAW,SAAQ,4BAAiB;CAkCxD,CAAA;AA1BC;IANC,6BAAM,CAAC;QACN,IAAI,EAAE,+BAAQ,CAAC,MAAM;QACrB,UAAU,EAAE,IAAI;QAChB,MAAM,EAAE,IAAI;QACZ,aAAa,EAAE,IAAI;KACpB,CAAC;;sCACQ;AAGV;IADC,6BAAM;8BACD,IAAI;wCAAA;AAGV;IADC,6BAAM;;0CACO;AAGd;IADC,6BAAM;;kDACe;AAGtB;IADC,6BAAM,CAAC,+BAAQ,CAAC,OAAO,CAAC;;0CACX;AAGd;IADC,6BAAM;;6CACU;AAGjB;IADC,6BAAM,CAAC,+BAAQ,CAAC,MAAM,CAAC;;0CACV;AAGd;IADC,6BAAM;;yCACM;AAGb;IADC,6BAAM,CAAC,+BAAQ,CAAC,MAAM,CAAC;;0CACV;AAhCK,UAAU;IAD9B,4BAAK,CAAC,EAAE,SAAS,EAAE,oBAAoB,EAAE,WAAW,EAAE,IAAI,EAAE,CAAC;GACzC,UAAU,CAkC9B;kBAlCoB,UAAU"}
+{"version":3,"file":"accounting.js","sourceRoot":"","sources":["../../../../src/models/ts/accounting.ts"],"names":[],"mappings":";;;;;;;;;;;AAAA,+DAAsE;AAGtE,IAAqB,UAAU,GAA/B,MAAqB,UAAW,SAAQ,4BAAiB;CAqCxD,CAAA;AA7BC;IANC,6BAAM,CAAC;QACN,IAAI,EAAE,+BAAQ,CAAC,MAAM;QACrB,UAAU,EAAE,IAAI;QAChB,MAAM,EAAE,IAAI;QACZ,aAAa,EAAE,IAAI;KACpB,CAAC;;sCACQ;AAGV;IADC,6BAAM;8BACD,IAAI;wCAAA;AAGV;IADC,6BAAM;;0CACO;AAGd;IADC,6BAAM;;kDACe;AAGtB;IADC,6BAAM,CAAC,+BAAQ,CAAC,OAAO,CAAC;;0CACX;AAGd;IADC,6BAAM;;6CACU;AAGjB;IADC,6BAAM,CAAC,+BAAQ,CAAC,MAAM,CAAC;;0CACV;AAGd;IADC,6BAAM;;yCACM;AAGb;IADC,6BAAM,CAAC,+BAAQ,CAAC,MAAM,CAAC;;0CACV;AAGd;IADC,6BAAM;;+CACY;AAnCA,UAAU;IAD9B,4BAAK,CAAC,EAAE,SAAS,EAAE,oBAAoB,EAAE,WAAW,EAAE,IAAI,EAAE,CAAC;GACzC,UAAU,CAqC9B;kBArCoB,UAAU"}

dist/src/utils/lightning.js

@@ -503,6 +503,22 @@ function listChannels() {
     });
 }
 exports.listChannels = listChannels;
+function openChannel(args) {
+    return __awaiter(this, void 0, void 0, function* () {
+        return new Promise((resolve, reject) => {
+            const lightning = loadLightning();
+            lightning.openChannelSync(args, function (err, response) {
+                if (err == null) {
+                    resolve(response);
+                }
+                else {
+                    reject(err);
+                }
+            });
+        });
+    });
+}
+exports.openChannel = openChannel;
 function channelBalance() {
     return __awaiter(this, void 0, void 0, function* () {
         return new Promise((resolve, reject) => {

dist/src/utils/setup.js

@@ -44,6 +44,7 @@ function setVersion() {
 }
 function migrate() {
     return __awaiter(this, void 0, void 0, function* () {
+        addTableColumn('sphinx_accountings', 'funding_txid');
         addTableColumn('sphinx_chat_members', 'last_alias');
         addTableColumn('sphinx_chats', 'my_photo_url');
         addTableColumn('sphinx_chats', 'my_alias');

src/controllers/index.ts

@@ -32,6 +32,8 @@ export async function set(app) {
 
 	timers.reloadTimers()
 
+	queries.startWatchingUTXOs()
+
 	app.get('/chats', chats.getChats)
 	app.post('/group', chats.createGroupChat)
 	app.put('/chats/:id', chats.updateChat)

src/controllers/queries.ts

@@ -7,6 +7,7 @@ import * as lightning from '../utils/lightning'
 import { listUnspent, UTXO } from '../utils/wallet'
 import * as jsonUtils from '../utils/json'
 import { Op } from 'sequelize'
+import fetch from 'node-fetch'
 
 type QueryType = 'onchain_address'
 export interface Query {
@@ -30,7 +31,7 @@ interface Accounting {
   date: string
 }
 
-async function getPendingAccountings():Promise<Accounting[]> {
+async function getPendingAccountings(): Promise<Accounting[]> {
   const utxos: UTXO[] = await listUnspent() // at least 1 confg
   const accountings = await models.Accounting.findAll({
     where: {
@@ -68,16 +69,49 @@ export async function listUTXOs(req, res) {
   }
 }
 
-// function genChannel(acc: Accounting) {
+async function getSuggestedSatPerByte(): Promise<number> {
+  const MAX_AMT = 250
+  try {
+    const r = await fetch('https://mempool.space/api/v1/fees/recommended')
+    const j = await r.json()
+    return Math.min(MAX_AMT, j.hourFee)
+  } catch (e) {
+    return MAX_AMT
+  }
+}
 
-// }
+// https://mempool.space/api/v1/fees/recommended
+async function genChannelAndConfirmAccounting(acc: Accounting) {
+  const sat_per_byte = await getSuggestedSatPerByte()
+  console.log("[WATCH]=> sat_per_byte", sat_per_byte)
+  try {
+    const r = await lightning.openChannel({
+      node_pubkey: acc.pubkey,
+      local_funding_amount: acc.amount,
+      push_sat: 0,
+      sat_per_byte
+    })
+    console.log("[WATCH]=> CHANNEL OPENED!", r)
+    await models.Accounting.update({
+      status: constants.statuses.confirmed,
+      fudingTxid: r.funding_txid_str
+    },{
+      where: {id: acc.id}
+    })
+    console.log("[WATCH]=> ACCOUNTINGS UPDATED!")
+  } catch (e) {
+    console.log('[ACCOUNTING] error creating channel',e)
+  }
+}
 
-async function pollUTXOs(){
+async function pollUTXOs() {
+  console.log("[WATCH]=> pollUTXOs")
   const accs: Accounting[] = await getPendingAccountings()
-  if(!accs) return
-  accs.forEach(acc=>{
-    if(acc.confirmations<1) return
-
+  if (!accs) return
+  console.log("[WATCH]=> accs", accs.length)
+  asyncForEach(accs, async acc=>{
+    if (acc.confirmations < 1) return
+    await genChannelAndConfirmAccounting(acc)
   })
 }
 
@@ -203,3 +237,9 @@ export const receiveQueryResponse = async (payload) => {
     console.log("=> ERROR receiveQueryResponse,", e)
   }
 }
+
+async function asyncForEach(array, callback) {
+	for (let index = 0; index < array.length; index++) {
+		await callback(array[index], index, array);
+	}
+}

src/models/ts/accounting.ts

@@ -35,4 +35,7 @@ export default class Accounting extends Model<Accounting> {
   @Column(DataType.BIGINT)
   chanId: number
 
+  @Column
+  fundingTxid: string
+
 }

src/utils/lightning.ts

@@ -449,6 +449,25 @@ async function listChannels(): Promise<{ [k: string]: any }> {
   })
 }
 
+export interface OpenChannelArgs {
+  node_pubkey: any // bytes
+  local_funding_amount: number
+  push_sat: number // 0
+  sat_per_byte: number // 75?
+}
+export async function openChannel(args: OpenChannelArgs): Promise<{ [k: string]: any }> {
+  return new Promise((resolve, reject) => {
+    const lightning = loadLightning()
+    lightning.openChannelSync(args, function (err, response) {
+      if (err == null) {
+        resolve(response)
+      } else {
+        reject(err)
+      }
+    });
+  })
+}
+
 async function channelBalance(): Promise<{ [k: string]: any }> {
   return new Promise((resolve, reject) => {
     const lightning = loadLightning()

src/utils/setup.ts

@@ -32,6 +32,9 @@ async function setVersion() {
 
 async function migrate() {
 
+  addTableColumn('sphinx_accountings', 'funding_txid')
+
+
   addTableColumn('sphinx_chat_members', 'last_alias')
 
   addTableColumn('sphinx_chats', 'my_photo_url')