#!/usr/bin/env python3
"""CNB CodeBuddy NPC 通用监控脚本 — 自动盯所有 open Issue + PR。

设计：
- 自动列出仓库所有 open 的 Issue（含 NPC 评论摘要）
- 列出所有 open PR（NPC 推的 MR）
- 输出稳定（无时间戳），任何新 Issue / 新评论 / 新 PR 都会让输出变化
- 配合 cronjob monitor_script 使用：有变化才触发 agent，静默零消耗
"""
import json
import os
import urllib.error
import urllib.request

API = "https://api.cnb.cool"
REPO = os.environ.get("CNB_REPO", "muchen-org/download-webhook")


def load_token():
    """从 ~/.hermes/.env 读取 CNB_TOKEN"""
    env_path = os.path.expanduser("~/.hermes/.env")
    try:
        with open(env_path) as f:
            for line in f:
                line = line.strip()
                if line.startswith("CNB_TOKEN="):
                    return line.split("=", 1)[1].strip()
    except FileNotFoundError:
        pass
    return os.environ.get("CNB_TOKEN", "")


def api_get(path):
    req = urllib.request.Request(
        f"{API}{path}",
        headers={
            "Authorization": f"Bearer {load_token()}",
            "accept": "application/json",
        },
        method="GET",
    )
    try:
        with urllib.request.urlopen(req, timeout=20) as resp:
            return json.loads(resp.read().decode())
    except urllib.error.HTTPError as e:
        return {"error": e.code}
    except Exception as e:
        return {"error": str(e)}


def get_list(payload, key="items"):
    """兼容 list / {items: [...]} 两种返回"""
    if isinstance(payload, list):
        return payload
    if isinstance(payload, dict) and key in payload:
        return payload[key]
    if isinstance(payload, dict) and "data" in payload:
        return payload["data"]
    return []


def main():
    lines = []

    # 1. 所有 open Issue
    issues = api_get(f"/{REPO}/-/issues?state=open")
    issue_list = get_list(issues)
    open_issues = [i for i in issue_list if i.get("state") == "open"]
    lines.append(f"Open issues: {len(open_issues)}")
    for issue in sorted(open_issues, key=lambda x: int(x.get("number", 0))):
        num = issue.get("number", "?")
        comments = api_get(f"/{REPO}/-/issues/{num}/comments")
        comment_list = get_list(comments)
        # 只显示 NPC 评论（作者含 npc 或模型名）
        npc_comments = [
            c for c in comment_list
            if "npc" in (c.get("author", {}).get("username", "")).lower()
            or "npc" in (c.get("author", {}).get("nickname", "")).lower()
            or (c.get("author", {}).get("username", "") or "").startswith("npc/")
            or (c.get("author", {}).get("nickname", "") or "").startswith("npc/")
            or c.get("author", {}).get("username", "") == "deepseek-v4-flash"
        ]
        title = (issue.get("title") or "").replace("\n", " ")
        lines.append(f"  #{num} open: {title[:70]}")
        for c in npc_comments:
            body = (c.get("body") or "").replace("\n", " ")[:80]
            lines.append(f"    NPC: {body}")
        if not npc_comments:
            lines.append(f"    (no NPC activity)")

    # 2. 所有 open PR
    pulls = api_get(f"/{REPO}/-/pulls?state=open")
    pull_list = get_list(pulls)
    open_pulls = [p for p in pull_list if p.get("state") == "open"]
    lines.append(f"Open PRs: {len(open_pulls)}")
    for p in sorted(open_pulls, key=lambda x: int(x.get("number", 0))):
        author = p.get("author", {}).get("nickname", p.get("author", {}).get("username", "?"))
        lines.append(f"  PR#{p.get('number', '?')} [{author}]: {(p.get('title') or '')[:60]}")

    print("\n".join(lines))


if __name__ == "__main__":
    main()