# -*- coding: utf-8 -*-
"""桌面应用版本信息与云端升级策略判断。"""

from __future__ import annotations

import re
from typing import Any


APP_VERSION = "1.1.2"
_VERSION_PATTERN = re.compile(
    r"^v?(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)"
    r"(?:[-+][0-9A-Za-z.-]+)?$"
)


def normalize_version(value: Any) -> str:
    """校验并统一版本号格式，允许用户输入可选的 v 前缀。"""
    text = str(value or "").strip()
    match = _VERSION_PATTERN.fullmatch(text)
    if not match:
        return ""
    return text[1:] if text.lower().startswith("v") else text


def release_status(release: Any, *, local_version: str = APP_VERSION) -> dict[str, Any]:
    """把云端发布策略转换为桌面端可直接消费的状态。"""
    source = release if isinstance(release, dict) else {}
    local = normalize_version(local_version) or APP_VERSION
    latest = normalize_version(source.get("latest_version")) or local
    update_available = latest != local
    download_url = str(source.get("download_url") or "").strip()
    force_upgrade = bool(source.get("force_upgrade")) and update_available
    return {
        "local_version": local,
        "latest_version": latest,
        "download_url": download_url,
        "release_notes": str(source.get("release_notes") or "").strip(),
        "update_available": update_available,
        "force_upgrade": force_upgrade,
        "updated_at": str(source.get("updated_at") or ""),
    }