From 0408c924332f6fb8a8244ca3b0aeaaa72d541bdd Mon Sep 17 00:00:00 2001
From: Divjot Singh <bogas04@gmail.com>
Date: Thu, 20 Oct 2016 00:08:35 +0900
Subject: [PATCH] Initial Release

---
 README.md    | 63 ++++++++++++++++++++++++++++++++++++++++++++++++--
 index.js     | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 package.json | 14 +++++++++++
 test.js      | 10 ++++++++
 4 files changed, 150 insertions(+), 2 deletions(-)
 create mode 100644 index.js
 create mode 100644 package.json
 create mode 100644 test.js

diff --git a/README.md b/README.md
index 76cca42..53048fc 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,61 @@
-# hukamnama.json
-Fetches Hukamnama from Harimandir Sahib, Amritsar via SGPC's PDF
+# 🙏🏻 🙏🏼 🙏🏽 🙏🏾 🙏🏿  hukamnama-json
+
+NodeJS module that fetches Hukamnama from Harimandir Sahib, Amritsar via [SGPC's PDF](http://old.sgpc.net/hukumnama/jpeg%20hukamnama/hukamnama.pdf)
+
+# Installation
+
+Requires Node v5+ 
+
+```bash
+npm i hukamnama-json
+```
+
+# Usage
+
+```javascript
+var hukamnama = require('hukamnama'); // ES5
+import hukamnama from 'hukamnama';    // ES2015
+
+hukamnama()                           // Returns a promise
+.then(hukam => {
+  let { ang, content, gurakhr, punjabi, english } = hukam;
+  console.log(ang, content, gurakhr, punjabi, english);
+})
+.catch(error => console.log(errror));
+```
+# Changelog
+
+## 1.0.0
+* [ ] I don't know `¯\_(ツ)_/¯`, why don't you [suggest](https://github.com/bogas04/hukamnama-json/issues/new)?
+
+## 0.5.0
+* [ ] Extract date of hukamnama.
+* [ ] Ensure it's `battle-tested`.
+* [ ] Ensure it works with multiple-page pdf.
+
+## 0.0.1 (Initial Release)
+* [x] Use rudimentary text parsing to extract.
+  * [x] entire content.
+  * [x] hukamnama in gurakhr.
+  * [x] punjabi translation.
+  * [x] english translation.
+  * [x] ang.
+* [x] Use [PDFJS](https://mozilla.github.io/pdf.js/) to extract contents out of the pdf.
+
+# Contributing
+
+```bash
+# Clone
+git clone https://github.com/bogas04/hukamnama-json
+cd hukamnama.json
+
+# Build
+npm i
+
+# Test
+npm test
+```
+
+# License
+
+MIT
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..069aa5c
--- /dev/null
+++ b/index.js
@@ -0,0 +1,65 @@
+'use strict';
+
+const http = require('http');
+const PDFJS = require('pdfjs-dist');
+const SGPC_URL = `http://old.sgpc.net/hukumnama/jpeg%20hukamnama/hukamnama.pdf`;
+
+function hukamJS ({  } = {  }) {
+
+  const injectNewLine = str => [
+    e => e.endsWith("TODAY'S HUKAMNAMA FROM SRI DARBAR SAHIB, Sri Amritsar. "),
+    e => e.endsWith(". IST] "),
+    e => /, \d{4}$/.test(e) && (str = `\n${str}`),
+    e => e.startsWith('(AMg:') && (str = `\n${str}`),
+    e => e.startsWith('English Translation') && (str = `\n${str}`),
+    e => e.indexOf('Nanakshahi') > 0 && (str = `\n${str}`),
+  ].some(condition => condition(str)) ? `${str}\n` : str;
+
+  return new Promise((resolve, reject) => (
+    http.get(SGPC_URL, res => {
+      let buff = [];
+
+      res.on('data', chunk => buff.push(chunk));
+
+      res.on('end', () => PDFJS.getDocument(new Buffer.concat(buff))
+        .then(pdf => pdf.getPage(1))
+        .then(page => page.getTextContent())
+        .then(({ items = [] }) => {
+          let content = '', gurakhr = '', punjabi = '', english = '', ang = 0;
+
+          let gurakhrBegan = false, gurakhrEnded = false;
+          let punjabiBegan = false, punjabiEnded = false;
+          let englishBegan = false, englishEnded = false;
+
+          items.forEach(({ str }) => {
+            content += injectNewLine(str);
+
+            if (str.startsWith('(AMg:')) {
+              gurakhrEnded = true;
+              punjabiBegan = true;
+            }
+
+            if (gurakhrBegan && !gurakhrEnded) gurakhr += str;
+            if (punjabiBegan && !punjabiEnded) punjabi += str;
+            if (englishBegan && !englishEnded) english += str;
+
+            if (str.startsWith('English Translation')) {
+              punjabiEnded = true;
+              englishBegan = true;
+            }
+
+            if (str.endsWith(' IST] ')) { gurakhrBegan = true; }
+
+            if (str.indexOf('(Page:') > 0) { ang = parseInt(/\(Page: ([\d ]+)/.exec(str)[1]); }
+          });
+
+          resolve({ content, ang, gurakhr, punjabi, english });
+        })
+        .catch(err => reject(err))
+      );
+
+    })
+  ));
+}
+
+module.exports = hukamJS;
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..396addb
--- /dev/null
+++ b/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "hukamnama-json",
+  "version": "0.0.1",
+  "description": "NodeJS module that fetches Hukamnama from Harimandir Sahib, Amritsar via SGPC's PDF",
+  "main": "index.js",
+  "scripts": {
+    "test": "node test"
+  },
+  "author": "bogas04",
+  "license": "MIT",
+  "dependencies": {
+    "pdfjs-dist": "^1.6.258"
+  }
+}
diff --git a/test.js b/test.js
new file mode 100644
index 0000000..7f6eb21
--- /dev/null
+++ b/test.js
@@ -0,0 +1,10 @@
+'use strict';
+
+const hukam = require('./index.js');
+
+hukam()
+  .then(({ ang, content, english, gurakhr, punjabi }) => {
+    if (ang < 1 || ang > 1430) { console.log("Invalid Ang ", ang); }
+    else { console.log("All tests passed!"); }
+  })
+  .catch(err => console.log(err));