# Simple GET request
>>> import urllib4
>>> resp = urllib4.request("GET", "http://httpbin.org/robots.txt")
>>> resp.status
200
>>> resp.data
b"User-agent: *\nDisallow: /deny\n"

# POST request with JSON data
>>> import urllib4
>>> import json
>>> data = {"name": "John", "age": 30}
>>> resp = urllib4.request(
...     "POST",
...     "http://httpbin.org/post",
...     headers={"Content-Type": "application/json"},
...     body=json.dumps(data).encode()
... )
>>> resp.status
200

import urllib4
from urllib4.http2 import inject_into_urllib4, ConnectionProfile

# Enable HTTP/2 support
inject_into_urllib4()

# Create a pool manager with a specific connection profile
http = urllib4.PoolManager(http2_profile=ConnectionProfile.HIGH_PERFORMANCE)

# Make a request (automatically uses HTTP/2 if the server supports it)
response = http.request("GET", "https://nghttp2.org")
print(f"HTTP version: {response.version_string}")

from urllib4.websocket import WebSocketConnection

# Connect to a WebSocket server with compression and health monitoring
ws = WebSocketConnection(
    "wss://echo.websocket.org",
    enable_compression=True,
    compression_level=9,
    enable_health_monitoring=True,
    ping_interval=30.0,
    ping_timeout=5.0,
)

# Connect to the server
ws.connect()

# Send a text message
ws.send("Hello, WebSocket!")

# Send a binary message
ws.send(b"\x01\x02\x03\x04")

# Send a structured object using a subprotocol
ws = WebSocketConnection(
    "wss://echo.websocket.org",
    protocols=["json"],
)
ws.connect()
ws.send({"name": "John", "age": 30})  # Automatically encoded as JSON

# Receive a message with timeout
try:
    message = ws.receive(timeout=5.0)
    if isinstance(message, dict):
        print(f"Received JSON: {message}")
    else:
        print(f"Received: {message.text}")
except WebSocketTimeoutError:
    print("Timed out waiting for message")

# Close the connection
ws.close()

import urllib4
from urllib4.http3 import HTTP3Connection, HTTP3Settings, QUICSettings, inject_into_urllib4

# Direct HTTP/3 usage
quic_settings = QUICSettings(
    enable_multipath=True,  # Enable Multipath QUIC
    max_paths=4,
    enable_0rtt=True,       # Enable 0-RTT for faster connections
)

http3_settings = HTTP3Settings(
    quic=quic_settings,
)

# Create an HTTP/3 connection
conn = HTTP3Connection(
    "cloudflare-quic.com",  # A server that supports HTTP/3
    settings=http3_settings,
)

# Connect and make a request
conn.connect()
response = conn.request("GET", "/")
print(f"Status: {response.status}")
print(f"Body: {response.data.decode()[:100]}...")

# Close the connection
conn.close()

# Alternatively, inject HTTP/3 support into urllib4
inject_into_urllib4()

# Now all HTTPS requests will automatically use HTTP/3 when available
http = urllib5.PoolManager()
response = http.request("GET", "https://cloudflare-quic.com/")

from ai_urllib4.ai import AISmartConfig, optimize_params_for

# Get a suggested timeout for an API endpoint
timeout = AISmartConfig.suggest_timeout("https://api.example.com/v1/users")
print(f"Suggested Timeout: {timeout}s")

# Get a full set of optimized parameters
params = optimize_params_for("https://cdn.example.com/big-file.zip")
print(f"Optimized Params: {params}")
# Output: {'timeout': 60.0, 'retries': 3}

import asyncio
from ai_urllib4.async_connectionpool import connection_from_url

async def main():
    pool = connection_from_url("http://httpbin.org")
    response = await pool.urlopen("GET", "/get")
    print(response)
    await pool.close()

asyncio.run(main())

# This is a planned API - not yet implemented
import urllib4
from urllib4.util.cert_verification import SPKIPinningVerifier, CertificateTransparencyPolicy
from urllib4.util.hsts import HSTSCache, HSTSHandler

# Create a pool manager with SPKI pinning
pins = {
    "example.com": {"pin-sha256:YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg="}
}
http = urllib4.PoolManager(
    spki_pins=pins,
    cert_transparency_policy=CertificateTransparencyPolicy.BEST_EFFORT
)

# Create an HSTS handler
hsts_cache = HSTSCache()
hsts_handler = HSTSHandler(hsts_cache)

# Secure a URL if needed
url = "http://example.com/api"
secured_url = hsts_handler.secure_url(url)  # Returns https://example.com/api if in HSTS cache