#!/usr/bin/env python3
"""Offline entrypoint for studies/ (no make, no pip, no network).

Usage:
  python3 run.py list
  python3 run.py test
  python3 run.py check
  python3 run.py derive [model]
  python3 run.py validate [model]
"""
from __future__ import annotations

import json
import subprocess
import sys
from pathlib import Path

STUDIES = Path(__file__).resolve().parent
MODELS = sorted(
    p.name
    for p in (STUDIES / "models").iterdir()
    if p.is_dir() and (p / "Makefile").exists()
)


def run_py(script: Path, cwd: Path) -> int:
    return subprocess.call([sys.executable, str(script)], cwd=str(cwd))


def cmd_list() -> int:
    status = STUDIES / "derived" / "STATUS.json"
    if not status.exists():
        print("no STATUS.json — run: python3 run.py test")
        return 1
    data = json.loads(status.read_text())
    print(f"{'ID':12} {'NAME':14} {'STATUS':28} {'TOTAL':8} ACTIVE")
    print("-" * 78)
    for m in data.get("models") or []:
        active = m.get("active_params")
        if active is None:
            active = "undisclosed"
        print(
            f"{m['model_id']:12} {str(m.get('display_name', ''))[:14]:14} "
            f"{str(m.get('status', ''))[:28]:28} {str(m.get('total_params') or '—'):8} {active}"
        )
    return 0


def models_arg(argv: list[str]) -> list[str]:
    if argv:
        return argv
    return MODELS


def cmd_derive(names: list[str]) -> int:
    rc = 0
    for m in names:
        print(f"==> derive {m}")
        r = run_py(STUDIES / "models" / m / "scripts" / "generate_derived.py", STUDIES / "models" / m)
        rc = rc or r
    return rc


def cmd_validate(names: list[str]) -> int:
    rc = 0
    for m in names:
        print(f"==> validate {m}")
        r = run_py(STUDIES / "models" / m / "scripts" / "validate.py", STUDIES / "models" / m)
        rc = rc or r
    return rc


def cmd_dashboard() -> int:
    print("==> dashboard")
    return run_py(STUDIES / "shared" / "scripts" / "build_dashboard.py", STUDIES)


def cmd_packages() -> int:
    return run_py(STUDIES / "shared" / "scripts" / "check_packages.py", STUDIES)


def cmd_test(names: list[str]) -> int:
    rc = cmd_validate(names)
    rc = cmd_dashboard() or rc
    rc = cmd_packages() or rc
    if rc == 0:
        print(f"✓ test passed: {' '.join(names)}")
    return rc


def cmd_check(names: list[str]) -> int:
    rc = cmd_derive(names)
    rc = cmd_validate(names) or rc
    rc = cmd_dashboard() or rc
    rc = cmd_packages() or rc
    if rc == 0:
        print(f"✓ check passed: {' '.join(names)}")
    return rc


def main(argv: list[str]) -> int:
    if not argv or argv[0] in ("-h", "--help", "help"):
        print(__doc__)
        print("models:", ", ".join(MODELS))
        return 0
    cmd, *rest = argv
    if cmd == "list":
        return cmd_list()
    if cmd == "derive":
        return cmd_derive(models_arg(rest))
    if cmd == "validate":
        return cmd_validate(models_arg(rest))
    if cmd == "dashboard":
        return cmd_dashboard()
    if cmd == "test":
        return cmd_test(models_arg(rest))
    if cmd == "check":
        return cmd_check(models_arg(rest))
    print(f"unknown command: {cmd}", file=sys.stderr)
    return 2


if __name__ == "__main__":
    raise SystemExit(main(sys.argv[1:]))