from governor import thermal_cap


def score_node(node):
    if node["state"] == "offline":
        return 0.0

    agent = node.get("agent") or {}

    try:
        load = float(agent.get("load", "1 1 1").split()[0])
    except:
        load = 1.0

    base = 10.0
    capacity = node.get("max_jobs", 8)

    score = (base + capacity) - (load * 3.0)

    return max(score, 0.1) * thermal_cap(agent)


def build_distcc_hosts(nodes):
    scored = []

    for n in nodes:
        scored.append((n, score_node(n)))

    total = sum(s for _, s in scored) or 1.0

    hosts = []

    for node, score in scored:
        if node["state"] == "offline":
            continue

        weight = int((score / total) * 64)
        weight = max(1, weight)

        hosts.append(f"{node['host']}/{weight}")

    return " ".join(hosts)