"""B07 DXF 붙여넣기 — 클립보드 DXF 글 · 끌어다 놓은 DXF·DWG 파일 → 웹 CAD 엔티티 · 도면층."""

from pathlib import Path

from fastapi import FastAPI
from fastapi.testclient import TestClient

import io

import ezdxf

from B07_DesignDetail.B07_DesignDetail_Engine_Frame_Import import (
    dxf_text_to_entities,
    import_frame_file,
)
from B07_DesignDetail.B07_DesignDetail_Router_Frame import router

SAMPLE = Path("resources/tester/fixtures/b07_webclip_sample.dxf").read_text(encoding="utf-8")

app = FastAPI()
app.include_router(router)
client = TestClient(app)


def test_engine_keeps_layer_names_and_shapes():
    entities, layers = dxf_text_to_entities(SAMPLE)
    kinds = sorted(entity["type"] for entity in entities)
    # 선 1 · 닫힌 폴리선 1 · 원(선분 묶음) 1 · 글 1
    assert kinds == ["Line", "PolyLine", "PolyLine", "Text"]
    assert {entity["layerId"] for entity in entities} == {"구조물", "치수글"}
    assert [layer["name"] for layer in layers] == ["구조물", "치수글"]
    assert layers[0]["color"] == "#ff0000"  # ACI 1
    text = next(entity for entity in entities if entity["type"] == "Text")
    assert text["shapeData"]["label"] == "배수관 D600"
    assert text["shapeData"]["basePoint"] == {"x": 5.0, "y": 50.0}
    line = next(entity for entity in entities if entity["type"] == "Line")
    assert line["shapeData"]["endPoint"] == {"x": 100.0, "y": 0.0}  # 원좌표 그대로


def test_bylayer_color_is_layer_color():
    """488 — BYLAYER 도형 = 레이어 색(B07 붙이기 · M02 불러오기 같은 길) · 제 색은 그대로."""
    document = ezdxf.new()
    document.layers.add("빨강", color=1)
    space = document.modelspace()
    space.add_line((0, 0), (10, 0), dxfattribs={"layer": "빨강"})  # 색 = BYLAYER(256)
    space.add_line((0, 5), (10, 5), dxfattribs={"layer": "빨강", "color": 3})
    buffer = io.StringIO()
    document.write(buffer)
    text = buffer.getvalue()
    for entities in (
        dxf_text_to_entities(text)[0],
        import_frame_file("a.dxf", text.encode("utf-8")),
    ):
        assert [entity["lineColor"] for entity in entities] == ["#ff0000", "#00ff00"]


def test_route_returns_entities():
    response = client.post("/api/projects/dxf-clip", json={"text": SAMPLE})
    assert response.status_code == 200
    body = response.json()
    assert body["entity_count"] == 4
    assert [layer["name"] for layer in body["layers"]] == ["구조물", "치수글"]


def test_route_rejects_broken_text():
    response = client.post("/api/projects/dxf-clip", json={"text": "  0\nSECTION\n  2\nENTITIES\n"})
    assert response.status_code == 400
    assert response.json()["status"] == "error"


# 끌어다 놓기 — 오토캐드 WBLOCK(DWG) · DXFOUT(DXF) 로 저장한 파일
DWG = Path("resources/knowledge/original/경쟁사 프로그램/오솔길/OSK_sym/REpyo.dwg")


def test_file_route_reads_dxf():
    response = client.post(
        "/api/projects/dxf-clip/file",
        files={"file": ("클립.dxf", SAMPLE.encode("utf-8"), "application/octet-stream")},
    )
    assert response.status_code == 200
    body = response.json()
    assert body["entity_count"] == 4
    assert [layer["name"] for layer in body["layers"]] == ["구조물", "치수글"]


def test_file_route_reads_dwg():
    response = client.post(
        "/api/projects/dxf-clip/file",
        files={"file": (DWG.name, DWG.read_bytes(), "application/octet-stream")},
    )
    assert response.status_code == 200
    assert response.json()["entity_count"] > 0


def test_file_route_explains_unreadable():
    wrong = client.post("/api/projects/dxf-clip/file", files={"file": ("a.pdf", b"%PDF", "x")})
    assert wrong.status_code == 400
    assert "DXF 또는 DWG" in wrong.json()["message"]
    newer = client.post(
        "/api/projects/dxf-clip/file", files={"file": ("a.dwg", b"AC1035" + b"\0" * 64, "x")}
    )
    assert newer.status_code == 400
    assert "AutoCAD 2018 DWG 또는 DXF" in newer.json()["message"]