"""Fixture payloads for ``POST /qqweb/WhatsAppUser/chatRecords`` (M3).

These records mirror the real field names captured from the live CRM (see the
data dictionary §3 + phase0-findings.md §6):

``keyId`` (PK), ``type`` / ``msgType`` (``0``=text, ``1``=image/media,
``-2``=date divider), ``content`` (text), ``mediaName`` (media FILENAME — NOT a
URL; deferred download), ``nickName`` (sender), ``uid`` (owning staff account),
``friendUid`` (the other party), ``isSend``, ``createTime`` / ``dateTime``,
``timezone``, ``companyCode``, ``quotedId`` / ``quotedMessage`` (quoted reply).

The request is a **JSON body** ``{uid, friendUid, start, end}`` (ms epochs) —
NOT form-encoded like WeChat ``msg/chats``. The response pages BACKWARD: each
page carries ``data.end`` (oldest timestamp in this batch) and ``data.hasLast``
(older messages exist?); the scraper advances the cursor to ``end - 1`` and
repeats until ``hasLast`` is false::

    {"message":"调用成功","code":"10000","success":true,"traceId":"...",
     "data":{"messages":[...], "start":.., "end":.., "hasNext":.., "hasLast":..}}

The cassette is shaped to drive the backward-cursor paginator across two pages:

* page 1 -> ``messages=[m1, m_datebar(-2), m2]``, ``end=E1``, ``hasLast=true``
* page 2 -> ``messages=[m3]``, ``end=E2``, ``hasLast=false``

The ``-2`` record is a date divider that the scraper must DROP. ``E1`` is the
oldest timestamp in page 1's batch, so the backward-cursor advance must set the
next request's ``end`` to ``E1 - 1``.
"""

from __future__ import annotations

from typing import Any

# Oldest-timestamp-in-batch returned by each page; the scraper uses these to
# advance the backward cursor (next_request_end = page_end - 1).
E1 = 1784517338999
E2 = 1784517000000

# Page 1 records, EXACT live-capture field names. m1 is text/incoming,
# m_datebar is a -2 divider (must be filtered), m2 is image/outgoing.
WA_MESSAGE_RECORDS_PAGE1: list[dict[str, Any]] = [
    {  # m1 — text message, incoming.
        "keyId": "wa_1000001",
        "type": 0,
        "msgType": 0,
        "content": "hello from whatsapp",
        "nickName": "Customer One",
        "uid": "8613800000001@s.whatsapp.net",
        "friendUid": "8613800000111@s.whatsapp.net",
        "isSend": 0,
        "createTime": E1 + 600000,
        "dateTime": E1 + 600000,
        "timezone": "Asia/Shanghai",
        "companyCode": "8m0atd",
        "version": "v1.0",
    },
    {  # date divider — type == -2; scraper MUST drop this, never yield it.
        "keyId": "wa_1000000",
        "type": -2,
        "msgType": -2,
        "content": "2026-01-01",
        "nickName": "",
        "uid": "8613800000001@s.whatsapp.net",
        "friendUid": "8613800000111@s.whatsapp.net",
        "isSend": 0,
        "createTime": E1 + 300000,
        "dateTime": E1 + 300000,
        "timezone": "Asia/Shanghai",
        "companyCode": "8m0atd",
        "version": "v1.0",
    },
    {  # m2 — image message, outgoing, with a media filename (deferred download).
        "keyId": "wa_1000002",
        "type": 1,
        "msgType": 1,
        "content": "[image]",
        "mediaName": "8613800000001@s.whatsapp.net_wa_1000002.jpg",
        "nickName": "Alice Wang",
        "uid": "8613800000001@s.whatsapp.net",
        "friendUid": "8613800000111@s.whatsapp.net",
        "isSend": 1,
        "createTime": E1 + 100,
        "dateTime": E1 + 100,
        "timezone": "Asia/Shanghai",
        "companyCode": "8m0atd",
        "version": "v1.0",
    },
]

# Page 2 record — text message with a quoted reply; oldest in the window.
WA_MESSAGE_RECORDS_PAGE2: list[dict[str, Any]] = [
    {
        "keyId": "wa_999999",
        "type": 0,
        "msgType": 0,
        "content": "replying to an earlier message",
        "nickName": "Customer One",
        "uid": "8613800000001@s.whatsapp.net",
        "friendUid": "8613800000111@s.whatsapp.net",
        "isSend": 0,
        "createTime": E2,
        "dateTime": E2,
        "timezone": "Asia/Shanghai",
        "companyCode": "8m0atd",
        "quotedId": "wa_888888",
        "quotedMessage": "the earlier message text",
        "version": "v1.0",
    },
]


def make_wa_messages_response(
    messages: list[dict[str, Any]],
    *,
    end: int,
    has_last: bool,
    start: int = 1,
    has_next: bool = False,
    trace_id: str = "trace-wa-msg-1",
) -> dict[str, Any]:
    """Build a capture-shaped ``chatRecords`` response envelope.

    Shape (EXACT, per M3 spec)::

        {"message":"调用成功","code":"10000","success":true,"traceId":"...",
         "data":{"messages":[...], "start":.., "end":<oldest ts in batch>,
                 "hasNext":<bool>, "hasLast":<bool — are there older messages?>}}
    """
    return {
        "message": "调用成功",
        "code": "10000",
        "success": True,
        "traceId": trace_id,
        "data": {
            "messages": list(messages),
            "start": start,
            "end": end,
            "hasNext": has_next,
            "hasLast": has_last,
        },
    }