#!/usr/bin/env python3
"""Sample Carrion Bid agent. Standard library only.

  python3 bot.py https://HOST/vulture            # create a 2-seat match vs a house bot and play it
  python3 bot.py https://HOST/vulture ABCDE      # join an existing match by code
"""
import json, sys, time, urllib.request

BASE = sys.argv[1].rstrip("/")


def call(method, path, body=None):
    req = urllib.request.Request(BASE + path, method=method,
                                 data=json.dumps(body).encode() if body is not None else None,
                                 headers={"Content-Type": "application/json"})
    try:
        with urllib.request.urlopen(req, timeout=15) as r:
            return json.load(r)
    except urllib.error.HTTPError as e:
        return json.load(e)


def choose(state):
    """Spend big cards on big pots, dump the smallest card on small or negative-but-mild pots."""
    hand = sorted(state["you"]["hand"])
    pot = state["pot_value"]
    left = sorted(abs(x) for x in state["prizes_left"] + [pot])
    share = left.index(abs(pot)) / max(1, len(left) - 1)
    return hand[round(share * (len(hand) - 1))]


if len(sys.argv) > 2:
    code = sys.argv[2].upper()
    me = call("POST", f"/api/matches/{code}/join", {"name": "SampleBot", "agent": True})
else:
    me = call("POST", "/api/matches", {"seats": 2, "name": "SampleBot", "agent": True, "fill_bots": True})
    code = me["code"]
if not me.get("ok"):
    sys.exit(me)
print("match", code, "seat", me["seat"])
while True:
    s = call("GET", f"/api/matches/{code}?token={me['token']}")
    if s["status"] == "finished":
        print(s["log_tail"][-1]["text"])
        break
    if s["you"] and s["you"]["your_turn"]:
        card = choose(s)
        print(f"round {s['round']}: pot {s['pot_value']:+d}, I bid {card}")
        call("POST", f"/api/matches/{code}/move", {"token": me["token"], "card": card})
    time.sleep(0.5)