"""M01 읽는 식 줄(`POST /text`) — 계약 `resources/master_data/_화면_계약.md` 3장.

견본 셋: 산림 13-4-1 메쌓기 · 12-4 합판거푸집 · 12-17-1 펌프카 타설.
"""

from __future__ import annotations

import shutil
import sys
from decimal import Decimal
from pathlib import Path

import pytest
from fastapi import FastAPI
from fastapi.testclient import TestClient

from M01_MasterData import M01_MasterData_Router as router_module
from M01_MasterData import M01_MasterData_Store as store

sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "master_data/scripts"))

import master_text as mt  # noqa: E402

REAL = store.FOLDER
STACK = "GF000219"  # 13-4-1 메쌓기(인력) — 증가율이 걸린 줄
FORM = "GF000160"  # 12-4 합판거푸집 — 재료 여럿 · 수량 0 줄
PUMP = "GF000182"  # 12-17-1 펌프카 타설 — 하위 로직이 세 비목에 걸리고 덧줄이 있음
IDLE = "GC000999"  # 일반전정 — 세 비목에 걸린 장비 줄이 수량 0 이라 몫이 모두 0


@pytest.fixture
def client(tmp_path: Path, monkeypatch) -> TestClient:
    for path in REAL.glob("*.json"):
        if not path.name.startswith("_") or path.name == store.mk.BOOK.name:
            shutil.copy(path, tmp_path / path.name)
    monkeypatch.setattr(store, "FOLDER", tmp_path)
    app = FastAPI()
    app.include_router(router_module.router)
    return TestClient(app)


def _inputs(key: str) -> dict:
    """그 로직의 일괄 시험 입력 한 벌(`check_master.시험입력`)."""
    row = store.cm.master(REAL).logic(key)
    return {k: str(v) for k, v in store.cm.시험입력(row).items()}


def _both(client: TestClient, key: str) -> tuple[dict, dict]:
    body = {"key": key, "inputs": _inputs(key)}
    text = client.post("/api/m01/text", json=body)
    calc = client.post("/api/m01/calc", json=body)
    assert text.status_code == 200 and calc.status_code == 200, text.text
    return text.json(), calc.json()


def _all_lines(got: dict) -> list[dict]:
    return [one for group in got["groups"] for one in group["줄"]]


def test_자릿수는_화면과_같다() -> None:
    assert mt.fmt(Decimal("31500")) == "31,500"
    assert mt.fmt(Decimal("2803.50")) == "2,803.5"
    assert mt.fmt(Decimal("1") / Decimal(3)) == "0.3333"
    assert mt.fmt(Decimal("-1234.5")) == "-1,234.5"


def test_메쌓기_줄은_수로만_적히고_계가_시험계산과_같다(client: TestClient) -> None:
    got, calc = _both(client, STACK)
    assert got["ok"] is True and Decimal(str(got["계"])) == Decimal(str(calc["sums"]["계"]))
    rows = _all_lines(got)
    assert [one["이름"] for one in rows] == ["석공", "보통인부"]
    for one in rows:
        assert "찾기(" not in one["글"] and "만약(" not in one["글"] and "로직(" not in one["글"]
        assert one["글"].count("=") == 1 and " * " in one["글"]
    assert "%" in rows[0]["글"]  # 증가율은 따로 줄이 아니라 이 줄의 식에 녹아 있음
    assert rows[0]["글"].startswith("268,908 * ")


def test_합판거푸집은_비목마다_묶이고_안_쓰는_줄에_까닭이_있다(client: TestClient) -> None:
    got, calc = _both(client, FORM)
    assert [g["비목"] for g in got["groups"]] == ["노무비", "재료비"]
    for group in got["groups"]:
        assert Decimal(str(group["소계"])) == Decimal(str(calc["sums"][group["비목"]]))
        assert sum(Decimal(str(one["금액"])) for one in group["줄"]) == Decimal(str(group["소계"]))
    why = [one for one in _all_lines(got) if one.get("까닭")]
    assert why and all("0" in one["까닭"] for one in why)


def test_펌프카는_하위로직이_비목마다_한_줄씩이고_덧줄이_섞인다(client: TestClient) -> None:
    got, calc = _both(client, PUMP)
    assert [g["비목"] for g in got["groups"]] == ["노무비", "재료비", "경비"]
    assert Decimal(str(got["계"])) == Decimal(str(calc["sums"]["계"]))
    pump = [one for one in _all_lines(got) if one["이름"] == "콘크리트펌프차"]
    assert len(pump) == 3  # 노무비 · 재료비 · 경비 몫이 따로
    extra = next(one for one in _all_lines(got) if one["이름"].startswith("공구손료"))
    assert extra["글"].endswith(f"= {mt.fmt(Decimal(str(extra['금액'])))}") and "%" in extra["글"]


def test_몫이_모두_0인_장비_줄도_글에_남는다(client: TestClient) -> None:
    got, calc = _both(client, IDLE)
    idle = [one for one in _all_lines(got) if one["이름"] == "고소작업차"]
    assert len(idle) == 1  # 비목 셋 몫이 다 0 이라도 줄이 사라지지 않음
    assert Decimal(str(idle[0]["금액"])) == 0 and "수량 0" in idle[0]["까닭"]
    assert idle[0]["글"].endswith(" * 0 = 0")
    for group in got["groups"]:
        assert Decimal(str(group["소계"])) == Decimal(str(calc["sums"][group["비목"]]))


def test_멈추는_로직은_까닭_한_줄(client: TestClient) -> None:
    got = client.post("/api/m01/text", json={"key": STACK, "inputs": {}}).json()
    assert got["ok"] is False and "입력" in got["reason"]


def test_끝수는_줄이_아니라_소계에_붙는다(client: TestClient) -> None:
    got = client.get("/api/m01/logic", params={"key": STACK}).json()
    row = dict(got["logic"], 끝수={"대상": "계", "자리": 0, "방법": "버림"})
    body = {"key": STACK, "inputs": _inputs(STACK), "row": row, "file": got["file"]}
    cut = client.post("/api/m01/text", json=body).json()
    assert cut["ok"] is True
    group = cut["groups"][0]
    assert group["끝수"] == "원 미만 버림"
    assert Decimal(str(group["소계"])) == Decimal(str(group["소계"])).to_integral_value()
    assert not any("버림" in one["글"] for one in group["줄"])