from __future__ import annotations

from jarca_ledger_mcp import service


def test_health_check_initializes_db(tmp_path):
    db_path = tmp_path / "ledger.sqlite3"
    result = service.health_check(str(db_path))
    assert result["success"] is True
    assert result["schema_version"] == "6"
    assert db_path.exists()


def test_account_transaction_cashflow_and_category_reports(tmp_path):
    db_path = str(tmp_path / "ledger.sqlite3")
    acct = service.create_ledger_account("신한카드", type="card", institution="신한", db_path=db_path)
    assert acct["success"] is True
    account_id = acct["account"]["id"]

    income = service.create_ledger_transaction(
        "2026-06-01",
        "income",
        8_000_000,
        category="수입",
        merchant="회사",
        account_id=account_id,
        db_path=db_path,
    )
    assert income["success"] is True

    expense = service.create_ledger_transaction(
        "2026-06-03",
        "expense",
        120_000,
        category="식비",
        subcategory="마트",
        merchant="이마트",
        account_id=account_id,
        person="공통",
        tags=["장보기"],
        db_path=db_path,
    )
    assert expense["success"] is True

    fixed = service.create_ledger_transaction(
        "2026-06-05",
        "expense",
        900_000,
        category="교육",
        subcategory="학원",
        merchant="물리학원",
        person="고재성",
        is_fixed=True,
        db_path=db_path,
    )
    assert fixed["success"] is True

    investment_in = service.create_ledger_transaction(
        "2026-06-06",
        "income",
        5_000_000,
        category="이체",
        subcategory="투자이동",
        merchant="토스증권 매도/이체입금",
        db_path=db_path,
    )
    assert investment_in["success"] is True

    investment_out = service.create_ledger_transaction(
        "2026-06-07",
        "expense",
        3_000_000,
        category="이체",
        subcategory="투자이동",
        merchant="토스증권 매수/이체출금",
        is_fixed=True,
        db_path=db_path,
    )
    assert investment_out["success"] is True

    cashflow = service.get_monthly_cashflow_report("2026-06", db_path)
    assert cashflow["success"] is True
    assert cashflow["income"] == 8_000_000
    assert cashflow["expenses"] == 1_020_000
    assert cashflow["net_cashflow"] == 6_980_000
    assert cashflow["by_type"]["income"] == 13_000_000
    assert cashflow["by_type"]["expense"] == 4_020_000
    assert cashflow["by_cashflow_kind"]["investment"] == 8_000_000

    categories = service.get_category_spending_report(month="2026-06", db_path=db_path)
    assert categories["total_expense"] == 1_020_000
    assert categories["items"][0]["category"] == "교육"

    fixed_report = service.get_fixed_cost_report("2026-06", db_path)
    assert fixed_report["total_fixed_cost"] == 900_000
    assert fixed_report["count"] == 1


def test_budget_vs_actual_and_investable_cashflow(tmp_path):
    db_path = str(tmp_path / "ledger.sqlite3")
    service.create_ledger_budget("2026-06", "식비", 500_000, db_path=db_path)
    service.create_ledger_budget("2026-06", "교육", 800_000, person="고재준", db_path=db_path)
    service.create_ledger_transaction("2026-06-01", "income", 4_000_000, category="수입", db_path=db_path)
    service.create_ledger_transaction("2026-06-02", "expense", 550_000, category="식비", db_path=db_path)
    service.create_ledger_transaction("2026-06-03", "expense", 700_000, category="교육", person="고재준", db_path=db_path)
    service.create_ledger_transaction("2026-06-04", "expense", 2_000_000, category="이체", subcategory="투자이동", db_path=db_path)
    service.create_ledger_transaction("2026-06-05", "income", 1_000_000, category="이체", subcategory="투자이동", db_path=db_path)

    report = service.get_budget_vs_actual_report("2026-06", db_path)
    assert report["success"] is True
    food = next(i for i in report["items"] if i["category"] == "식비")
    edu = next(i for i in report["items"] if i["category"] == "교육")
    assert food["status"] == "over"
    assert food["remaining"] == -50_000
    assert edu["status"] == "ok"
    assert edu["remaining"] == 100_000

    investable = service.get_investable_cashflow_report("2026-06", minimum_cash_buffer=1_000_000, planned_extra_expense=500_000, db_path=db_path)
    assert investable["investable_cashflow"] == 1_250_000


def test_duplicate_detection_and_soft_delete(tmp_path):
    db_path = str(tmp_path / "ledger.sqlite3")
    first = service.create_ledger_transaction("2026-06-10", "expense", 10_000, merchant="카페", account_id="card1", db_path=db_path)
    second = service.create_ledger_transaction("2026-06-10", "expense", 10_000, merchant="카페", account_id="card1", db_path=db_path)
    assert first["success"] is True
    assert second["success"] is False
    assert second["error_code"] == "duplicate_transaction"

    tx_id = first["transaction"]["id"]
    deleted = service.delete_ledger_transaction(tx_id, db_path=db_path)
    assert deleted["success"] is True
    listed = service.list_ledger_transactions(include_deleted=False, db_path=db_path)
    assert listed["count"] == 0
    listed_all = service.list_ledger_transactions(include_deleted=True, db_path=db_path)
    assert listed_all["count"] == 1
    assert listed_all["transactions"][0]["status"] == "deleted"