#!/usr/bin/env bash
# Инвентаризация legacy-активов (файлов без связи со статьёй) на работающем стенде.
# Пример:
#   LMS_BASE_URL=https://lms.example.ru LMS_ADMIN_LOGIN=admin LMS_ADMIN_PASSWORD=... \
#       ./scripts/legacy-assets.sh
set -euo pipefail

base_url="${LMS_BASE_URL:-http://localhost:8080}"
admin_login="${LMS_ADMIN_LOGIN:-}"
admin_password="${LMS_ADMIN_PASSWORD:-}"

if [[ -z "$admin_login" || -z "$admin_password" ]]; then
    echo "Задайте LMS_ADMIN_LOGIN и LMS_ADMIN_PASSWORD." >&2
    echo "Пример: LMS_BASE_URL=https://lms.example.ru LMS_ADMIN_LOGIN=admin LMS_ADMIN_PASSWORD=... $0" >&2
    exit 2
fi

LMS_BASE_URL="${base_url%/}" \
LMS_ADMIN_LOGIN="$admin_login" \
LMS_ADMIN_PASSWORD="$admin_password" \
python3 - <<'PY'
import json
import os
import sys
import urllib.error
import urllib.request

base_url = os.environ["LMS_BASE_URL"]
admin_login = os.environ["LMS_ADMIN_LOGIN"]
admin_password = os.environ["LMS_ADMIN_PASSWORD"]


def request(method, path, payload=None, token=None):
    body = None if payload is None else json.dumps(payload).encode("utf-8")
    headers = {"Accept": "application/json"}
    if body is not None:
        headers["Content-Type"] = "application/json"
    if token:
        headers["Authorization"] = "Bearer " + token
    req = urllib.request.Request(base_url + path, data=body, headers=headers, method=method)
    try:
        return urllib.request.urlopen(req, timeout=30)
    except urllib.error.HTTPError as exc:
        detail = exc.read().decode("utf-8", "replace").strip()
        message = f"{method} {path}: HTTP {exc.code}"
        if detail:
            message += f": {detail}"
        print(message, file=sys.stderr)
        raise SystemExit(1)
    except urllib.error.URLError as exc:
        print(f"Не удалось подключиться к {base_url}: {exc.reason}", file=sys.stderr)
        raise SystemExit(1)


with request("POST", "/api/v1/auth/login", {"login": admin_login, "password": admin_password}) as response:
    login_body = response.read().decode("utf-8")

try:
    token = json.loads(login_body)["token"]
except (ValueError, KeyError, TypeError):
    print("Ответ /api/v1/auth/login не содержит token.", file=sys.stderr)
    raise SystemExit(1)

with request("GET", "/api/v1/content/legacy-assets", token=token) as response:
    try:
        assets = json.load(response)
    except ValueError:
        print("Ответ /api/v1/content/legacy-assets не является JSON.", file=sys.stderr)
        raise SystemExit(1)

if not isinstance(assets, list):
    print("Неожиданный формат /api/v1/content/legacy-assets: ожидался список.", file=sys.stderr)
    raise SystemExit(1)

for asset in assets:
    if not isinstance(asset, str):
        print(f"Пропущен нестроковый элемент: {asset!r}", file=sys.stderr)
        continue
    print(asset)
print(f"Всего legacy-активов: {len(assets)}", file=sys.stderr)
PY