"""Unit tests for the WeChat GROUP message normalizer in
:mod:`scripts.scrape_via_page` (msg/chats with friendId=roomId, confirmed
live 2026-08-19). Group rows differ from 1:1: talker=sender, roomid=the room,
msgId=null -> stable synthetic pk required for idempotent re-scrapes."""

from __future__ import annotations

from scripts.scrape_via_page import _normalize_group_message

OWNER = "wxid_wo97u1u2x11w22"
ROOM = "56807599995@chatroom"


def _row(**over):
    base = {
        "talker": "wxid_en2iklxtjxzz22",
        "oriTalker": ROOM,
        "name": "小**贸",
        "content": "hello",
        "type": 1,
        "roomid": ROOM,
        "createTime": 1787125769000,
        "msgId": None,
    }
    base.update(over)
    return base


def test_group_row_maps_sender_and_room():
    rec = _normalize_group_message(_row(), OWNER, ROOM)
    assert rec["channel"] == "wechat"
    assert rec["owner_account_id"] == OWNER
    assert rec["room_id"] == ROOM
    assert rec["talker_id"] == "wxid_en2iklxtjxzz22"  # 发送者（非会话对端）
    assert rec["sender_name"] == "小**贸"
    assert rec["type_raw"] == 1


def test_synthetic_msg_id_stable_across_rescans():
    """msgId=null 的群行两次归一化必须得到同一 msg_id（幂等 upsert 前提）。"""
    a = _normalize_group_message(_row(), OWNER, ROOM)
    b = _normalize_group_message(_row(), OWNER, ROOM)
    assert a["msg_id"] == b["msg_id"]
    assert a["msg_id"] == f"{OWNER}:{ROOM}:1787125769000:wxid_en2iklxtjxzz22"


def test_real_msg_id_preferred_over_synthetic():
    rec = _normalize_group_message(_row(msgId="m999"), OWNER, ROOM)
    assert rec["msg_id"] == "m999"


def test_divider_rows_dropped():
    assert _normalize_group_message(_row(type=-2, text="2026-08-19 15:49"), OWNER, ROOM) is None


def test_roomid_falls_back_to_queried_room():
    rec = _normalize_group_message(_row(roomid=""), OWNER, ROOM)
    assert rec["room_id"] == ROOM