"""智能导入 API — 文本解析与匹配"""
from fastapi import APIRouter, Depends, Request
from sqlalchemy.orm import Session, joinedload
from models import get_db, Website
from middleware.user_context import UserContext
from urllib.parse import urlparse

router = APIRouter(prefix="/api/import", tags=["智能导入"])


@router.post("/parse")
def parse_import_text(data: dict, db: Session = Depends(get_db), request: Request = None):
    """解析粘贴的文本，返回结构化结果 + 匹配信息"""
    user_id = UserContext.get_user_id(request)
    text = data.get("text", "").strip()
    if not text:
        return {"ok": False, "error": "文本为空"}

    lines = [l.strip() for l in text.split("\n") if l.strip()]
    if len(lines) < 3:
        return {"ok": False, "error": "至少需要 3 行：网址+网站名、账号、密码"}

    # 解析首行: 网址 + 空格 + 网站名
    first_line = lines[0]
    space_idx = first_line.find(" ")
    if space_idx > 0:
        url = first_line[:space_idx].strip()
        site_name = first_line[space_idx + 1:].strip()
    else:
        url = first_line
        try:
            site_name = urlparse(url).hostname or url
        except Exception:
            site_name = url

    result = {
        "ok": True,
        "url": url,
        "site_name": site_name,
        "username": lines[1] if len(lines) > 1 else "",
        "password": lines[2] if len(lines) > 2 else "",
        "remark": lines[3] if len(lines) > 3 else "",
    }

    # 匹配已有网站（仅当前用户）
    existing = db.query(Website).options(joinedload(Website.accounts)).filter(
        Website.url == url, Website.created_by == user_id
    ).first()
    if existing:
        result["matched_site"] = {
            "id": existing.id,
            "name": existing.name,
            "folder_id": existing.folder_id,
            "account_count": len(existing.accounts),
        }
        result["action"] = "append"
    else:
        result["matched_site"] = None
        result["action"] = "create"

    return result