"""Request builder for DeepSeek provider."""

from typing import Any

from loguru import logger

from core.anthropic import build_base_request_body
from core.anthropic.conversion import OpenAIConversionError
from providers.exceptions import InvalidRequestError


def build_request_body(request_data: Any, *, thinking_enabled: bool) -> dict:
    """Build OpenAI-format request body from Anthropic request for DeepSeek."""
    logger.debug(
        "DEEPSEEK_REQUEST: conversion start model={} msgs={}",
        getattr(request_data, "model", "?"),
        len(getattr(request_data, "messages", [])),
    )
    try:
        body = build_base_request_body(
            request_data,
            include_thinking=thinking_enabled,
            include_reasoning_content=thinking_enabled,
        )
    except OpenAIConversionError as exc:
        raise InvalidRequestError(str(exc)) from exc

    extra_body: dict[str, Any] = {}
    request_extra = getattr(request_data, "extra_body", None)
    if request_extra:
        extra_body.update(request_extra)

    if thinking_enabled and body.get("model") != "deepseek-reasoner":
        extra_body.setdefault("thinking", {"type": "enabled"})

    if extra_body:
        body["extra_body"] = extra_body

    logger.debug(
        "DEEPSEEK_REQUEST: conversion done model={} msgs={} tools={}",
        body.get("model"),
        len(body.get("messages", [])),
        len(body.get("tools", [])),
    )
    return body