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punkfairie 2023-05-08 13:10:38 -07:00
parent c457dfe7da
commit 19e77fa055
2 changed files with 81 additions and 30 deletions
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102
src/interfaces/JournalInterface.js
View file

@ -1,4 +1,5 @@
const EventEmitter = require('events')
const { app } = require('electron')
const fs = require('fs')
const path = require('path')
const max = require('lodash/max')
@ -8,39 +9,40 @@ const lineReader = require('reverse-line-reader')
const chokidar = require('chokidar')
const Tail = require('tail').Tail
// set log() to console.log() so whenever I get around to setting up a log file, I don't have to
// search and replace all the console.log()'s
const log = console.log.bind(console)
export class JournalInterface extends EventEmitter {
constructor() {
super()
// this.journalDir = os.homedir() + 'Saved Games\\Frontier Developments\\Elite Dangerous'
this.journalDir = "/mnt/c/Users/marle/Saved\ Games/Frontier\ Developments/Elite\ Dangerous/"
this.journalDir = null
if (!app.isPackaged) { // account for WSL during development
this.journalDir = "/mnt/c/Users/marle/Saved\ Games/Frontier\ Developments/Elite\ Dangerous/"
} else if (os.platform() === 'win32') { // windows
this.journalDir = os.homedir() + '\\Saved Games\\Frontier Developments\\Elite Dangerous'
} else if (os.platform() === 'linux') { // linux
this.journalDir = os.homedir() + '/.local/share/Steam/steamapps/compatdata/359320/pfx/drive_c/users/steamuser/Saved Games/Frontier Developments/Elite Dangerous/'
} else {
log(`ERROR: Journal files not found. OS: ${os.platform()}.`)
}
this.journalPattern = this.journalDir + "Journal.*.log"
this.current = this.getLatestJournal()
this.currentJournal = this.getLatestJournal()
// lineReader seems to be async, so start async processes here
this.currentLocation = null
this.currentSystemBodies = null
console.log('JournalInterface initialized. Attempting to find current location.')
log('JournalInterface initialized. Attempting to find current location.')
this.getCurrentLocation()
}
async getCurrentLocation() {
lineReader.eachLine(this.current, (raw, last) => {
if (raw) {
const line = JSON.parse(raw)
if (line.event === 'FSDJump') {
this.currentLocation = line.StarSystem
return false
} else if (last) {
console.log('Error: unable to find last hyperspace jump. Current location unknown.')
return false
}
}
}).then(() => {
this.emit('FSDJump')
console.log(`Current location set to ${this.currentLocation}.`)
.then(() => {
log('Attempting to find scanned bodies in current system.')
this.getScannedBodies()
})
}
// https://stackoverflow.com/questions/15696218/get-the-most-recent-file-in-a-directory-node-js
@ -52,17 +54,60 @@ export class JournalInterface extends EventEmitter {
return fs.statSync(fullPath).mtime
})
console.log('New journal file found, now watching ' + path.basename(this.current))
log(`New journal file found, now watching ${path.basename(this.currentJournal)}.`)
}
// get current location on setup, so if app is restarted, user can pick up where they left off
// rather than waiting til they jump to the next system to use the program again
async getCurrentLocation() {
lineReader.eachLine(this.currentJournal, (raw, last) => {
if (raw) { // skip blank line at end of file
const line = JSON.parse(raw)
if (line.event === 'FSDJump') {
this.currentLocation = line.StarSystem
return false
} else if (last) {
log('Warning: unable to find last hyperspace jump. Current location unknown.')
return false
}
}
}).then(() => {
this.emit('FSDJump')
log(`Current location set to ${this.currentLocation}.`)
})
}
// look for all scanned bodies before last FSDJump, for same reasons as getCurrentLocation()
// if ScanType = Detailed, look at line immediately above for event = SAAScanComplete?
async getScannedBodies() {
const detailedScanLine = null
lineReader.eachLine(this.currentJournal, (raw, last) => {
if (raw) { // skip blank line at end of file
const line = JSON.parse(raw)
if (line.event === 'Scan') {
if (line.ScanType === 'Detailed') {
detailedScanLine = line
}
}
}
})
}
// set up journal directory watcher to catch new journal files as the game seems to sometimes
// make more than one journal per day
// also for instances where UTC day switches over mid-play session
watchDirectory() {
const watcher = chokidar.watch(this.journalPattern, {usePolling: true, persistent: true})
watcher.on('add', newFile => this.current = this.getLatestJournal())
watcher.on('add', newFile => this.currentJournal = this.getLatestJournal())
console.log('Watching journal folder for changes...')
log('Watching journal folder for changes...')
}
// parse and handle journal lines
parseLine(raw) {
const line = JSON.parse(raw)
@ -72,10 +117,11 @@ export class JournalInterface extends EventEmitter {
}
}
watch() {
const tail = new Tail(this.current, {useWatchFile: true})
// watch the journal for changes
watchJournal() {
const tail = new Tail(this.currentJournal, {useWatchFile: true})
console.log(`Watching ${path.basename(this.current)}...`)
log(`Watching ${path.basename(this.currentJournal)}...`)
tail.on('line', data => this.parseLine(data))
tail.on('error', err => console.log(err))

9
src/renderer.js
View file

@ -36,15 +36,20 @@ createApp({
setup() {
const journal = new JournalInterface
// TODO: show warning to user
if (journal.journalDir === null) {
return
}
journal.watchDirectory()
journal.watch()
journal.watchJournal()
const currentLocation = ref('Unknown')
journal.on('FSDJump', () => currentLocation.value = journal.currentLocation)
return {
currentLocation
currentLocation,
}
}
}).mount('#app')