LICENSE

@@ -1,7 +0,0 @@
-Copyright 2024 hatkidchan <hatkidchan at gmail dot com>
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

make.py

@@ -1,10 +1,11 @@
 #!/usr/bin/env python3
 import json
 from pathlib import Path
-from typing import Union
+from typing import Optional, Union
 import asyncio
 from httpx import AsyncClient
-from rich.progress import Progress
+from asyncio.queues import Queue
+from rich.progress import TaskID, Progress
 from zipfile import ZipFile
 from PIL import Image
 
@@ -42,6 +43,60 @@ meta_url: str = (
 meta_filename = INPUT_PATH / f"meta-{meta_url.split('/')[-1]}"
 
 
+class AsyncDownloader:
+    def __init__(
+        self, files: Optional[list[tuple[str, Path]]] = None, maxfiles: int = 8
+    ):
+        self._queue: Queue[tuple[str, Path]] = Queue(maxfiles)
+        self._client = AsyncClient()
+        self._progress: Optional[Progress] = None
+        self._tasks: list[TaskID] = []
+
+        for url, path in files or []:
+            self._queue.put_nowait((url, path))
+
+    def add_file(self, url: str, path: Union[Path, str]):
+        self._queue.put_nowait((url, Path(path)))
+
+    async def __aenter__(self):
+        await self._client.__aenter__()
+        self._progress = Progress()
+        self._progress.__enter__()
+        for i in range(self._queue.maxsize):
+            self._tasks.append(
+                self._progress.add_task(f"Downloader {i + 1}", start=False)
+            )
+        return self
+
+    async def _worker(self, task: TaskID):
+        if not self._progress:
+            return
+        while not self._queue.empty():
+            url, path = await self._queue.get()
+            with path.open("wb") as fout:
+                async with self._client.stream("GET", url) as req:
+                    size = int(req.headers.get("Content-Length", 0))
+                    self._progress.start_task(task)
+                    self._progress.update(
+                        task,
+                        total=size,
+                        completed=0,
+                        description=f"{path.name}",
+                    )
+                    async for chunk in req.aiter_bytes(8192):
+                        self._progress.advance(task, fout.write(chunk))
+            self._progress.stop_task(task)
+
+    async def run(self):
+        await asyncio.gather(*[self._worker(task) for task in self._tasks])
+
+    async def __aexit__(self, a, b, c):
+        if self._progress is None:
+            raise ValueError("how did that happen?")
+        self._progress.__exit__(a, b, c)
+        await self._client.__aexit__()
+
+
 async def download_if_missing(url: str, path: Union[Path, str]):
     path = Path(path)
     if path.exists():