import {open, mkdir, writeFile, readdir} from 'node:fs/promises'

const inDir = './1dl/'
const outDir = './public/pathways/'
const files = await readdir(inDir)





const syntax = () => {
    const t = /^\(.*\)/
    const s = /^\[(.*?)\]/
    const n = /^(-->)/
    return {t, s, n}
}



const parse = async (filepath) => {
    const file = await open(filepath)
    
    const {t, s, n} = syntax()
    
    const parsed = []
    let currentTitle = ""
    let currentSection = ""

    for await (let line of file.readLines()) {
        line = line.trim()

        if (!line.length) continue

        if (line.match(t)) {
            currentTitle = line.slice(1, -1)
            parsed.push({title: currentTitle})
            continue
        }

        if (line.match(s)) {
            currentSection = line.slice(1, -1)
            parsed[parsed.length-1][currentSection] = []
            continue
        }

        if (line.match(n)) {
            let note = line.slice(2)
            parsed[parsed.length-1][currentSection].push({note: note})
            continue
        }

       parsed[parsed.length-1][currentSection].push(line) 

    }

    return parsed
}

const pathways = []


for (const file of files) {
    const parsed = await parse(inDir+file)
    
    let filename = file.replace('.1dl', '')
    pathways.push({slug: filename, ...parsed[0]})
    writeFile(outDir + file + '.json', JSON.stringify(parsed))
}

writeFile('./src/assets/pathways.json', JSON.stringify(pathways))