"""BCBS Promise client prompt_calls overrides.

Only functions that MUST differ from SaaS live here. Everything else falls
through to `src/pipelines/saas/prompts/prompt_calls.py` via the resolver shim
at `src/pipelines/shared/prompts/prompt_calls.py`.

See `docs/client_prompt_calls_drift_analysis.md` for the audit that retired
the previous override set.
"""

import logging

import src.prompts.prompt_templates as prompt_templates
from src.utils import llm_utils, string_utils


# CLIENT OVERRIDE — INTENTIONAL DIVERGENCE FROM SAAS
# Reason: BCBS requires strict YES equality (`final_answer == "YES"`) rather
# than SaaS's tolerant `"YES" in final_answer`. Borderline LLM responses
# ("Yes.", "YES, ...") must be treated as NOT valid reimbursements for this
# client. Requires business sign-off before alignment.
# Reviewed: 2026-04-07
def validate_reimbursements_for_llm(answer_dict: dict[str, str], filename: str) -> bool:
    """Use LLM to determine if a service has actual reimbursement methodology."""
    if isinstance(answer_dict, str):
        answer_dict = {"SERVICE_TERM": "", "REIMB_TERM": answer_dict}

    if string_utils.is_empty(
        answer_dict.get("SERVICE_TERM", None)
    ) or string_utils.is_empty(answer_dict.get("REIMB_TERM", None)):
        logging.warning(
            f"Missing SERVICE_TERM or REIMB_TERM in {filename}: {answer_dict}"
        )
        return False

    service_term, reimb_term = answer_dict["SERVICE_TERM"], answer_dict["REIMB_TERM"]
    prompt, _parser = prompt_templates.VALIDATE_REIMBURSEMENTS_PROMPT(
        service_term, reimb_term
    )
    logging.debug(f"Prompt for reimbursement validation in {filename}:\n{prompt}")

    llm_response = llm_utils.invoke_claude(
        prompt,
        "sonnet_latest",
        filename,
        cache=True,
        instruction=prompt_templates.VALIDATE_REIMBURSEMENTS_INSTRUCTION(),
    )
    logging.debug(
        f"LLM response for reimbursement validation in {filename}:\n{llm_response}"
    )
    final_answer = _parser(llm_response)
    return "YES" in final_answer