#!/usr/bin/env python3
"""HTTP server for the OnUnloadACK inner-delegate POC.

Serves poc.html and a minimal valid PDF with the application/pdf MIME type
so Chrome routes the navigation through the MimeHandlerView GuestView path.
"""
import http.server
import socketserver

# Minimal one-page PDF (valid enough for Chrome to recognise as PDF and
# hand it to the PDF MimeHandlerView).
PDF = (
    b"%PDF-1.4\n"
    b"1 0 obj<</Type/Catalog/Pages 2 0 R>>endobj\n"
    b"2 0 obj<</Type/Pages/Kids[3 0 R]/Count 1>>endobj\n"
    b"3 0 obj<</Type/Page/Parent 2 0 R/MediaBox[0 0 200 200]>>endobj\n"
    b"xref\n0 4\n0000000000 65535 f \n0000000009 00000 n \n"
    b"0000000052 00000 n \n0000000101 00000 n \n"
    b"trailer<</Size 4/Root 1 0 R>>\nstartxref\n164\n%%EOF\n"
)


class Handler(http.server.SimpleHTTPRequestHandler):
    def do_GET(self):  # noqa: N802
        if self.path.startswith("/test.pdf"):
            self.send_response(200)
            self.send_header("Content-Type", "application/pdf")
            self.send_header("Content-Length", str(len(PDF)))
            self.end_headers()
            self.wfile.write(PDF)
            return
        return super().do_GET()

    def log_message(self, fmt, *args):
        pass  # quiet


if __name__ == "__main__":
    import sys
    port = int(sys.argv[1]) if len(sys.argv) > 1 else 8080
    socketserver.TCPServer.allow_reuse_address = True
    with socketserver.TCPServer(("127.0.0.1", port), Handler) as httpd:
        print(f"serving on http://127.0.0.1:{port}/")
        httpd.serve_forever()