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package java.util.zip
import java.io._
import scala.scalajs.js
import scala.scalajs.js.typedarray._
class ZipInputStream(in: InputStream) extends InflaterInputStream(in) {
// Not implemented
// - All static constant fields (zip internals)
// - protected def createZipEntry(name: String): ZipEntry
private[this] val entryIter = {
import js.Dynamic.{global => g}
val data = in match {
case in: ArrayBufferInputStream =>
// Simulate reading all the data
while (in.skip(in.available()) > 0) {}
new Uint8Array(in.buffer, in.offset, in.length)
case _ =>
val arr = new js.Array[Int]
var x = in.read()
while (x != -1) {
arr.push(x)
x = in.read()
}
new Uint8Array(arr)
}
val zip = js.Dynamic.newInstance(g.JSZip)(data)
val entries = zip.files.asInstanceOf[js.Dictionary[js.Dynamic]]
entries.iterator
}
private[this] var inner: ArrayBufferInputStream = null
override def close(): Unit = {
closeEntry()
super.close()
}
override def available(): Int = {
if (inner == null || inner.available() <= 0) 0
else 1
}
def closeEntry(): Unit = {
if (inner != null)
inner.close()
inner = null
}
def getNextEntry(): ZipEntry = {
closeEntry()
if (entryIter.hasNext) {
val (name, jsEntry) = entryIter.next()
val res = new ZipEntry(name)
res.setTime(jsEntry.date.asInstanceOf[js.Date].getTime().toLong)
res.setComment(jsEntry.comment.asInstanceOf[String])
inner = new ArrayBufferInputStream(
jsEntry.asArrayBuffer().asInstanceOf[ArrayBuffer])
res
} else null
}
override def read(): Int = {
if (inner == null) -1
else inner.read()
}
override def read(buf: Array[Byte], off: Int, len: Int): Int = {
if (len == 0) 0
else if (inner == null) -1
else inner.read(buf, off, len)
}
override def skip(n: Long): Long = {
if (inner == null) 0
else inner.skip(n)
}
}
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