# =============================================================================
# Projet : AIR — Accounting Intermediate Representation
# Auteur : Simon-Pierre Boucher
# Contact : contact@spboucher.ai
# Fichier : test_llm_live.py
# Description : LIVE integration tests for the Claude extractor — skipped without ANTHROPIC_API_KEY.
# =============================================================================
"""Live Claude extractor tests.

These hit the real Claude API and are SKIPPED unless ANTHROPIC_API_KEY is set
in the environment — the offline suite (mock extractor) never requires it.
The key is read from the environment only; it is never stored in the repo.

Run:  ANTHROPIC_API_KEY=sk-ant-... .venv/bin/python -m pytest tests/test_llm_live.py -v
"""
from __future__ import annotations

import os
from decimal import Decimal
from pathlib import Path

import pytest

pytestmark = pytest.mark.skipif(
    not os.environ.get("ANTHROPIC_API_KEY"),
    reason="ANTHROPIC_API_KEY not set — live LLM tests are opt-in",
)

ROOT = Path(__file__).resolve().parents[1]
POLICY = ROOT / "alsl" / "policies" / "ca-qc-2026.yaml"
INVOICE = ROOT / "tests" / "fixtures" / "invoice_realistic.txt"


def test_claude_extractor_reads_a_real_invoice() -> None:
    from ingestion.extractor import ClaudeExtractor
    from ingestion.pipeline import ingest

    outcome = ingest(INVOICE.read_text(encoding="utf-8"), ClaudeExtractor())

    # extraction must be schema-valid AIR (the LLM never emits journal entries)
    assert outcome.document is not None, outcome.validation_errors
    (event,) = outcome.document.events

    # what a correct reading of this invoice must contain
    assert event.type.value in ("Sale", "Purchase")   # perspective may vary
    assert event.date.isoformat() == "2026-07-28"
    subtotal = event.subtotal()
    assert subtotal is not None
    # pre-tax amount, never the tax-included total, never a float artifact
    assert subtotal.amount == Decimal("999.99")
    assert subtotal.currency == "CAD"
    assert event.tax is not None and event.tax.jurisdiction.upper().endswith("QC")

    # confidence must be an honest decimal in (0, 1]
    assert Decimal("0") < outcome.extraction.confidence <= Decimal("1")
    assert event.meta is not None and event.meta.llm is not None


def test_live_extraction_compiles_to_a_balanced_journal() -> None:
    from aic.compiler import compile_document
    from alsl.loader import load_policy_set
    from core.invariant import entry_imbalances
    from ingestion.extractor import ClaudeExtractor
    from ingestion.pipeline import ingest

    outcome = ingest(INVOICE.read_text(encoding="utf-8"), ClaudeExtractor())
    assert outcome.document is not None

    journal, _ = compile_document(outcome.document, load_policy_set(POLICY))
    (entry,) = journal.entries
    assert entry_imbalances(entry) == {}
    # deterministic tax computation on the extracted subtotal: GST 50.00, QST 99.75
    amounts = sorted(str(l.amount.amount) for l in entry.lines)
    assert "50.00" in amounts and "99.75" in amounts