commit eb6089fd397571037e5bfd15c50429557ba1d298
Author: William Casarin <jb55@jb55.com>
Date: Sat, 27 May 2023 13:00:29 -0700
init commit
Diffstat:
7 files changed, 674 insertions(+), 0 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,12 @@
+.build-result
+.buildcmd
+.direnv/
+.envrc
+.rgignore
+Makefile
+events.txt
+index.js
+invoice_events.txt
+node_modules/
+prices.db
+test.ledger
diff --git a/index.ts b/index.ts
@@ -0,0 +1,227 @@
+
+import fs from 'fs';
+import readline from 'readline';
+import assert from 'assert';
+
+interface Zap {
+ kind: number;
+ content: string;
+ pubkey: string;
+ tags: string[][];
+}
+
+// Zap Types
+interface ZapProfileType {
+ type: "profile" // profile
+ pubkey: string
+}
+
+interface ZapEventType {
+ type: "event"
+ evid: string
+ pubkey: string
+}
+
+type ZapType = ZapProfileType | ZapEventType
+
+// Descriptions
+interface GenericDesc {
+ type: "generic" // generic
+ value: string
+}
+
+interface LNDesc {
+ type: "lnurl" // lnurl
+ description: string
+ address: string
+}
+
+interface ZapDesc {
+ type: "zap" // zap
+ zap_type: ZapType
+ zap: Zap
+}
+
+type Description = LNDesc | GenericDesc | ZapDesc
+
+interface Posting {
+ account: string;
+ amount: string;
+}
+
+interface Transaction {
+ date: Date;
+ description: Description;
+ postings: Posting[];
+}
+
+function description_string(desc: Description): string {
+ switch (desc.type) {
+ case "generic":
+ return desc.value
+ case "lnurl":
+ return desc.description
+ case "zap":
+ return "Zap"
+ }
+}
+
+function determine_zap_type(zap: Zap): ZapType {
+ const etag = get_tag(zap.tags, "e")
+ const ptag = get_tag(zap.tags, "p")
+
+ if (!ptag)
+ return null
+
+ if (!etag) {
+ let profile_zap: ZapProfileType = { pubkey: ptag, type: "profile" }
+ return profile_zap
+ }
+
+ let zap_ev: ZapEventType = { evid: etag, pubkey: ptag, type: "event" }
+ return zap_ev
+}
+
+function get_tag(tags: string[][], key: string): string {
+ let v = tags.find(tag => tag[0] === key)
+ return v && v[1]
+}
+
+function get_lnurl_description(json: string[][]): LNDesc {
+ const description = get_tag(json, "text/plain")
+ const address = get_tag(json, "text/identifier")
+ return { description, address, type: "lnurl" }
+}
+
+function is_json(str: string): boolean {
+ return str[0] === '{' || (str[0] === '[' && str[1] === '[')
+}
+
+function create_generic_desc(value: string): GenericDesc {
+ return { type: "generic", value }
+}
+
+function determine_description(str: string): Description {
+ try {
+ let json
+ if (is_json(str) && (json = JSON.parse(str))) {
+ if (json.kind === 9734) {
+ let zaptype: ZapType = determine_zap_type(json)
+ let zap_desc: ZapDesc = { zap_type: zaptype, zap: json, type: "zap" }
+ return zap_desc
+ } else if (json.length > 0) {
+ return get_lnurl_description(json)
+ }
+
+ return create_generic_desc(str)
+ }
+
+ return create_generic_desc(str)
+ } catch(e) {
+ return create_generic_desc(str)
+ }
+}
+
+function msat(val: number): string {
+ return `${val} msat`
+}
+
+function classify_account(str: string):string {
+ if (str.includes("Damus Merch"))
+ return "merch:tshirt"
+ if (str.includes("Damus Hat"))
+ return "merch:hat"
+ if (str.includes("@tipjar"))
+ return "lnurl:jb55@sendsats.lol:tipjar"
+ return "unknown"
+}
+
+function determine_postings(credit: number, debit: number, desc: Description): Posting[] {
+ let postings: Posting[] = []
+ switch (desc.type) {
+ case "generic":
+ // todo: categorize
+ const is_credit = credit > 0
+ const acct = is_credit? "income" : "expenses"
+ const amount = is_credit? credit : debit
+ const subacct = classify_account(desc.value)
+ postings.push({ account: `${acct}:${subacct}`, amount: msat(is_credit? -amount : amount) })
+ postings.push({ account: `assets:cln`, amount: msat(is_credit? amount : -amount) })
+ break
+ case "lnurl":
+ assert(debit === 0)
+ postings.push({ account: `income:lnurl:${desc.address}`, amount: msat(-credit) })
+ postings.push({ account: `assets:cln`, amount: msat(credit) })
+ break
+ case "zap":
+ assert(debit === 0)
+ switch (desc.zap_type.type) {
+ case 'profile':
+ postings.push({ account: `income:zap:profile:${desc.zap_type.pubkey}`, amount: msat(-credit) })
+ break
+ case 'event':
+ // todo: attribute this to profile as well?
+ let evtype = desc.zap_type as ZapEventType
+ postings.push({ account: `income:zap:event:${evtype.evid}`, amount: msat(-credit) })
+ break
+ }
+ postings.push({ account: `assets:cln`, amount: msat(credit) })
+ break
+ }
+
+ return postings
+}
+
+async function process(filePath: string) {
+ const fileStream = fs.createReadStream(filePath);
+
+ const rl = readline.createInterface({
+ input: fileStream,
+ crlfDelay: Infinity
+ });
+
+ console.log("P 2022-07-22 msat 0.00000036 CAD")
+
+ for await (const line of rl) {
+ let parts = line.split('\t');
+
+ if(parts.length !== 6) {
+ console.error(`Invalid line: ${line} ${parts.length} !== 5`);
+ continue;
+ }
+
+ const credit = Number(parts[2])
+ const debit = Number(parts[3])
+
+ if (credit === 0 && debit === 0)
+ continue
+
+ const timestamp = Number(parts[4])
+ const date = new Date(timestamp * 1000)
+ const description = determine_description(parts[5])
+ const postings = determine_postings(credit, debit, description)
+
+ // type,.tag,.credit_msat,.debit_msat,.timestamp,.description
+ let transaction: Transaction = { date, description, postings };
+ console.log(transactionToLedger(transaction));
+ }
+}
+
+function format_date(date: Date): string {
+ const year = date.getFullYear();
+ const month = (date.getMonth() + 1).toString().padStart(2, '0');
+ const day = date.getDate().toString().padStart(2, '0');
+
+ return `${year}-${month}-${day}`;
+}
+
+function transactionToLedger(transaction: Transaction): string {
+ const tx = `${format_date(transaction.date)} ${description_string(transaction.description)}\n`
+ return tx + transaction.postings.map(p => ` ${p.account} ${p.amount}`).join("\n") + "\n"
+}
+
+async function main() {
+ await process('invoice_events.txt');
+}
+
+main().catch(console.error);
diff --git a/package-lock.json b/package-lock.json
@@ -0,0 +1,387 @@
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+ "dependencies": {
+ "@cspotcode/source-map-support": "^0.8.0",
+ "@tsconfig/node10": "^1.0.7",
+ "@tsconfig/node12": "^1.0.7",
+ "@tsconfig/node14": "^1.0.0",
+ "@tsconfig/node16": "^1.0.2",
+ "acorn": "^8.4.1",
+ "acorn-walk": "^8.1.1",
+ "arg": "^4.1.0",
+ "create-require": "^1.1.0",
+ "diff": "^4.0.1",
+ "make-error": "^1.1.1",
+ "v8-compile-cache-lib": "^3.0.1",
+ "yn": "3.1.1"
+ },
+ "bin": {
+ "ts-node": "dist/bin.js",
+ "ts-node-cwd": "dist/bin-cwd.js",
+ "ts-node-esm": "dist/bin-esm.js",
+ "ts-node-script": "dist/bin-script.js",
+ "ts-node-transpile-only": "dist/bin-transpile.js",
+ "ts-script": "dist/bin-script-deprecated.js"
+ },
+ "peerDependencies": {
+ "@swc/core": ">=1.2.50",
+ "@swc/wasm": ">=1.2.50",
+ "@types/node": "*",
+ "typescript": ">=2.7"
+ },
+ "peerDependenciesMeta": {
+ "@swc/core": {
+ "optional": true
+ },
+ "@swc/wasm": {
+ "optional": true
+ }
+ }
+ },
+ "node_modules/typescript": {
+ "version": "5.0.4",
+ "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.0.4.tgz",
+ "integrity": "sha512-cW9T5W9xY37cc+jfEnaUvX91foxtHkza3Nw3wkoF4sSlKn0MONdkdEndig/qPBWXNkmplh3NzayQzCiHM4/hqw==",
+ "dev": true,
+ "bin": {
+ "tsc": "bin/tsc",
+ "tsserver": "bin/tsserver"
+ },
+ "engines": {
+ "node": ">=12.20"
+ }
+ },
+ "node_modules/uglify-js": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-1.1.1.tgz",
+ "integrity": "sha512-YYY9Dle1leC+btgrHnAR05eq0aRdcPJsXlYYD+SYw2lqc5HFuFNHg3wWEW4SNE0iXXEUl0fz43gTQ3r1YK76rg==",
+ "dev": true,
+ "bin": {
+ "uglifyjs": "bin/uglifyjs"
+ },
+ "engines": {
+ "node": "*"
+ }
+ },
+ "node_modules/v8-compile-cache-lib": {
+ "version": "3.0.1",
+ "resolved": "https://registry.npmjs.org/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz",
+ "integrity": "sha512-wa7YjyUGfNZngI/vtK0UHAN+lgDCxBPCylVXGp0zu59Fz5aiGtNXaq3DhIov063MorB+VfufLh3JlF2KdTK3xg==",
+ "dev": true
+ },
+ "node_modules/yn": {
+ "version": "3.1.1",
+ "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
+ "integrity": "sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==",
+ "dev": true,
+ "engines": {
+ "node": ">=6"
+ }
+ }
+ }
+}
diff --git a/package.json b/package.json
@@ -0,0 +1,20 @@
+{
+ "name": "accounting",
+ "description": "damus accounting",
+ "version": "0.1.0",
+ "repository": {
+ "url": "https://github.com/jb55/accounting"
+ },
+ "main": "index.js",
+ "scripts": {
+ "test": "tap test/*.js"
+ },
+ "devDependencies": {
+ "tap": "~0.2.5",
+ "ts-node": "^10.9.1",
+ "typescript": "^5.0.4"
+ },
+ "dependencies": {
+ "@types/node": "^20.2.5"
+ }
+}
diff --git a/run b/run
@@ -0,0 +1 @@
+npx ts-node index.ts
diff --git a/shell.nix b/shell.nix
@@ -0,0 +1,5 @@
+{ pkgs ? import <nixpkgs> {} }:
+with pkgs;
+mkShell {
+ buildInputs = [ ledger ];
+}
diff --git a/tsconfig.json b/tsconfig.json
@@ -0,0 +1,22 @@
+{
+ "compilerOptions": {
+ "module": "commonjs",
+ "esModuleInterop": true,
+ "allowSyntheticDefaultImports": true,
+ "target": "es6",
+ "noImplicitAny": true,
+ "moduleResolution": "node",
+ "sourceMap": true,
+ "outDir": "dist",
+ "baseUrl": ".",
+ "paths": {
+ "*": [
+ "node_modules/*",
+ "src/types/*"
+ ]
+ }
+ },
+ "include": [
+ "src/**/*"
+ ]
+}
