#!/usr/bin/env python3
"""instance_info.py — onboarding concierge đọc bối cảnh INSTANCE (tier + dashboard).

Cho skill onboarding biết: gói (tier) nào để giới thiệu đúng tính năng mở khóa, và link
dashboard (nếu deploy đã ghi). Tất định, stdlib only. KHÔNG đọc dữ liệu per-user (riêng tư).

  python3 lib/instance_info.py        -> JSON {tier, dashboard, dashboard_url, dashboard_user}

Nguồn:
- tier + dashboard flag: <bundle>/BUILD.txt (build_client ghi). None ở dev/source (chưa build).
- dashboard_url: <bundle>/instance/dashboard.txt (setup_dashboard.sh ghi khi deploy). None nếu chưa.
"""
import os
import json


def _bundle_root():
    """Thư mục chứa BUILD.txt — đi lên từ cwd (skill chạy ở products/ceo) rồi từ __file__."""
    for start in (os.getcwd(), os.path.dirname(os.path.abspath(__file__))):
        d = start
        for _ in range(5):
            if os.path.isfile(os.path.join(d, "BUILD.txt")):
                return d
            nd = os.path.dirname(d)
            if nd == d:
                break
            d = nd
    return None


def main():
    root = _bundle_root()
    tier = None
    dashboard = False
    if root:
        try:
            for line in open(os.path.join(root, "BUILD.txt"), encoding="utf-8"):
                s = line.strip()
                if s.startswith("tier:"):
                    tier = s.split(":", 1)[1].strip() or None
                elif s.startswith("dashboard:"):
                    dashboard = "true" in s.lower()
        except Exception:
            pass

    dash_url = None
    dash_user = None
    if root:
        try:
            for line in open(os.path.join(root, "instance", "dashboard.txt"), encoding="utf-8"):
                s = line.strip()
                if s.startswith("url:"):
                    dash_url = s.split(":", 1)[1].strip() or None
                elif s.startswith("user:"):
                    dash_user = s.split(":", 1)[1].strip() or None
        except Exception:
            pass

    print(json.dumps({
        "tier": tier,
        "dashboard": dashboard,
        "dashboard_url": dash_url,
        "dashboard_user": dash_user,
    }, ensure_ascii=False))


if __name__ == "__main__":
    main()