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shayc/gist:df9c8d47f575523df24a926949901b40

Created March 31, 2020 14:41
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  1. shayc created this gist Mar 31, 2020.
    71 changes: 71 additions & 0 deletions gistfile1.txt
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,71 @@
    <input
    type="file"
    accept=".obf, .obz"
    onChange={event => {
    readFiles(event.target.files);
    }}
    />

    export async function readFiles(files: FileList): Promise<BoardSet[]> {
    const obz = await parseOBZ(await readOBZFile(file))
    }

    export function readOBZFile(file: File): Promise<JSZip> {
    return jszip.loadAsync(file)
    }

    export function parseOBZ(zip: JSZip): Promise<BoardSet> {
    return new Promise((resolve, reject) => {
    const boardSet: BoardSet = {
    manifest: {
    format: '',
    root: '',
    paths: {
    boards: {},
    images: {},
    sounds: {}
    }
    },
    boards: {},
    images: {},
    sounds: {}
    }

    let count = 0

    zip.forEach(async (relativePath: string) => {
    count++

    const fileType = getFileType(relativePath)
    const isBinary = fileType === 'sound' || fileType === 'image'
    const asyncType = (isBinary && 'uint8array') || 'text'

    const data = await zip.file(relativePath).async(asyncType)

    switch (fileType) {
    case 'sound':
    boardSet.sounds[relativePath] = `data:audio/mp3;base64,${encode(data as Uint8Array)}`
    break

    case 'image':
    boardSet.images[relativePath] = `data:image/png;base64,${encode(data as Uint8Array)}`
    break

    case 'board':
    boardSet.boards[relativePath] = parseOBF(data as string)
    break

    case 'manifest':
    boardSet.manifest = JSON.parse(data as string)
    break

    default:
    // no default
    }

    if (!--count) {
    resolve(boardSet)
    }
    })
    })
    }