"""
mock-license-server — Standalone HTTP server that validates licenses.
Replaces api.keygen.sh for the HarshItPDF license verification flow.
"""

import os
import json
import logging
from http.server import HTTPServer, BaseHTTPRequestHandler

PORT = int(os.environ.get("LICENCE_SERVER_PORT", "7871"))
logger = logging.getLogger("license-server")

VALID_RESPONSE = {
    "meta": {"valid": True},
    "data": {
        "type": "license",
        "id": "mock-license-001",
        "attributes": {
            "name": "HarshItPDF Enterprise License",
            "key": "harshitpdf-unlocked-0000-0000-0000-000000000001",
            "status": "ACTIVE",
            "expiry": None,
            "metadata": {
                "isEnterprise": True,
                "isPremium": True,
                "maxUsers": 999,
                "plan": "enterprise",
                "tier": "enterprise",
            },
            "maxMachines": 999,
        },
    },
}


class LicenseHandler(BaseHTTPRequestHandler):
    def do_POST(self):
        body = self.rfile.read(int(self.headers.get("Content-Length", 0)))
        logger.info(f"License check from {self.client_address}: {self.path}")
        self.send_response(200)
        self.send_header("Content-Type", "application/json")
        self.send_header("Connection", "close")
        self.end_headers()
        self.wfile.write(json.dumps(VALID_RESPONSE).encode())

    def do_GET(self):
        self.send_response(200)
        self.send_header("Content-Type", "application/json")
        self.send_header("Connection", "close")
        self.end_headers()
        self.wfile.write(
            json.dumps({"ok": True, "service": "mock-license-server", "version": "1.0"}).encode()
        )

    def log_message(self, fmt, *args):
        logger.info(fmt % args)


def start_license_server():
    server = HTTPServer(("0.0.0.0", PORT), LicenseHandler)
    logger.info(f"Mock license server listening on port {PORT}")
    server.serve_forever()


if __name__ == "__main__":
    logging.basicConfig(level=logging.INFO, format="[license-server] %(message)s")
    start_license_server()