# =============================================================================
# Projet : AIR — Accounting Intermediate Representation
# Auteur : Simon-Pierre Boucher
# Contact : contact@spboucher.ai
# Fichier : test_workspace.py
# Description : Tests — the AIR home (managed local data) and the standalone CLI flows.
# =============================================================================
"""AIR home + CLI tests: init, compile into the home, archives, status,
incremental recompile, statements, and offline QBO export — all without any
third-party system."""
from __future__ import annotations

import json
from pathlib import Path

import pytest

from kernel.workspace import Workspace, WorkspaceError
from sdk.cli import main

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


def test_workspace_init_open_and_guardrails(tmp_path: Path) -> None:
    home = tmp_path / "books"
    ws = Workspace.init(home, name="acme", policies=POLICY)
    assert ws.meta["name"] == "acme"
    with pytest.raises(WorkspaceError, match="already initialized"):
        Workspace.init(home)
    with pytest.raises(WorkspaceError, match="no AIR home"):
        Workspace.open(tmp_path / "elsewhere")


def test_cli_full_standalone_lifecycle(tmp_path: Path, capsys) -> None:
    home = str(tmp_path / "books")

    assert main(["init", "--home", home, "--policies", POLICY]) == 0
    assert main(["compile", DEMO, "--home", home]) == 0
    out = capsys.readouterr().out
    assert "8 entries" in out and "document archived" in out

    # replaying the same document is idempotent (0 appended)
    assert main(["compile", DEMO, "--home", home]) == 0
    assert "+0 appended" in capsys.readouterr().out

    # data is managed inside the home
    ws = Workspace.open(home)
    status = ws.status()
    assert status["entries"] == 8
    assert status["chain_valid"] is True
    assert status["documents_archived"] == 1  # content-addressed, no duplicate

    # statements straight from the home
    assert main(["report", "trial-balance", "--home", home]) == 0
    tb = capsys.readouterr().out
    assert "TOTAL" in tb

    assert main(["status", "--home", home]) == 0
    assert "chain_valid" in capsys.readouterr().out


def test_cli_incremental_into_home(tmp_path: Path, capsys) -> None:
    home = str(tmp_path / "books")
    main(["init", "--home", home, "--policies", POLICY])
    main(["compile", DEMO, "--home", home])
    capsys.readouterr()

    corrected = tmp_path / "demo_v2.yaml"
    corrected.write_text(
        Path(DEMO).read_text().replace('amount: "333.33"', 'amount: "349.99"'),
        encoding="utf-8",
    )
    assert main(["recompile", DEMO, str(corrected), "--home", home]) == 0
    out = capsys.readouterr().out
    assert "~1 changed" in out and "1 reversal(s)" in out

    status = Workspace.open(home).status()
    assert status["entries"] == 10          # 8 + reversal + replacement
    assert status["documents_archived"] == 2
    assert status["chain_valid"] is True


def test_cli_qbo_export_needs_no_quickbooks(tmp_path: Path, capsys) -> None:
    home = str(tmp_path / "books")
    main(["init", "--home", home, "--policies", POLICY])
    capsys.readouterr()
    assert main(["compile", DEMO, "--home", home, "--backend", "qbo-export"]) == 0
    out = capsys.readouterr().out
    assert "QBO JSON export" in out

    exports = list(Workspace.open(home).exports_dir.glob("qbo_journal_*.json"))
    assert len(exports) == 1
    data = json.loads(exports[0].read_text())
    assert len(data["journal_entries"]) == 8
    assert data["journal_entries"][0]["Line"]  # QBO JournalEntry shape


def test_cli_missing_policies_is_helpful(tmp_path: Path, capsys) -> None:
    home = str(tmp_path / "books")
    main(["init", "--home", home])           # no default policies
    capsys.readouterr()
    assert main(["compile", DEMO, "--home", home]) == 1
    assert "no policy set" in capsys.readouterr().err