/**
 * This script auto-creates a note with correct filename in /content/notes
 * It pries out the current active Firefox tab URL as webmention potential context target.
 * Hooked up with Mac Shortcut CTRL+OPT+CMD+N !
 * Depends on https://github.com/andikleen/lz4json to decode FF session content (npm lz4 didn't work)
 */

const spawn = require("child_process").spawn
const { writeFileSync, existsSync, mkdirSync } = require('fs');
const dayjs = require('dayjs');

// options:
const sublPath = "/Applications/Sublime\ Text.app/Contents/SharedSupport/bin/subl"
const firefoxProfileDir = "/Users/wgroeneveld/Library/Application Support/Firefox/Profiles/vm6bu36u.default-release"
const notesDir = `${__dirname}/../content/notes`

const proc = spawn('lz4jsoncat', [
  `${firefoxProfileDir}/sessionstore-backups/recovery.jsonlz4`
])

let output = '';
proc.stdout.on('data', (chunk) => {
  output += chunk.toString();
})

function pryOutLastActiveTabFromDecodedJsonRecovery(output) {
  const session = JSON.parse(output)
  let lastAccessed = 0
  let url = ""

  session.windows.forEach(w => {
  	w.tabs.forEach(t => {
  		if(t.lastAccessed > lastAccessed) {
  			lastAccessed = t.lastAccessed
  			url = t.entries[t.entries.length - 1].url
  		}
  	})
  })
  return url
}

function ensureNoteDirectoriesArePresent() {
  const date = dayjs()
  const year = date.format("YYYY")
  const month = date.format("MM")
  const path = `${notesDir}/${year}/${month}`

  if(!existsSync(`${notesDir}/${year}`)) mkdirSync(`${notesDir}/${year}`)
  if(!existsSync(path)) mkdirSync(path)
  return path
}

proc.on('exit', (code) => {
	const url = pryOutLastActiveTabFromDecodedJsonRecovery(output)
	const date = dayjs()

  const path = ensureNoteDirectoriesArePresent()
  const filename = `${date.format("DD")}h${date.format("HH")}m${date.format("mm")}s${date.format("ss")}`
  const fullpath = `${path}/${filename}.md`
  const mddata = `---
date: ${date.format("YYYY-MM-DDTHH:mm:ssZ")}
context: "${url}"
---


`

  writeFileSync(fullpath, mddata, 'utf-8')
  spawn(sublPath, [ fullpath ])
 
	console.log(`Created note ${filename} with context ${url}.`)
});