"""缺陷数据契约与标准化。"""

import pandas as pd


CORE_REQUIRED_COLUMNS = [
    "defect_id",
    "panel_id",
    "batch_id",
    "equipment_id",
    "seat_id",
    "inspection_station",
    "timestamp",
    "defect_type",
    "severity",
    "x_mm",
    "y_mm",
    "panel_width_mm",
    "panel_height_mm",
    "hour",
    "shift",
    "day",
]

INDUSTRY_OPTIONAL_COLUMNS = [
    "defect_geometry_type",
    "width_mm",
    "height_mm",
    "length_mm",
    "angle_deg",
    "area_mm2",
    "bbox_x_min_mm",
    "bbox_y_min_mm",
    "bbox_x_max_mm",
    "bbox_y_max_mm",
    "contour_json",
    "process_step",
    "recipe_id",
    "operator_id",
    "clean_equipment_id",
    "clean_slot_id",
    "clean_recipe_id",
    "lam_equipment_id",
    "lam_seat_id",
    "lam_fixture_id",
    "lam_jig_id",
    "lam_nozzle_id",
    "bond_equipment_id",
    "bond_head_id",
    "bond_recipe_id",
    "aoi_equipment_id",
    "aoi_station_id",
    "material_lot_glass",
    "material_lot_oca",
    "material_lot_polarizer",
    "material_lot_cover",
]

TEMPLATE_COLUMNS = CORE_REQUIRED_COLUMNS + INDUSTRY_OPTIONAL_COLUMNS


def get_missing_required_columns(df):
    """返回缺失的核心必填字段。"""
    return [column for column in CORE_REQUIRED_COLUMNS if column not in df.columns]


def normalize_defect_schema(df):
    """补齐 3C 面板行业扩展字段，并保持旧版 CSV 可用。"""
    normalized = df.copy()
    defaults = {
        "defect_geometry_type": "point",
        "width_mm": 0.0,
        "height_mm": 0.0,
        "length_mm": 0.0,
        "angle_deg": 0.0,
        "area_mm2": 0.0,
        "bbox_x_min_mm": normalized.get("x_mm", 0.0),
        "bbox_y_min_mm": normalized.get("y_mm", 0.0),
        "bbox_x_max_mm": normalized.get("x_mm", 0.0),
        "bbox_y_max_mm": normalized.get("y_mm", 0.0),
        "contour_json": "",
        "process_step": "前制程",
        "recipe_id": "",
        "operator_id": "",
        "clean_equipment_id": "",
        "clean_slot_id": "",
        "clean_recipe_id": "",
        "lam_equipment_id": normalized.get("equipment_id", ""),
        "lam_seat_id": normalized.get("seat_id", ""),
        "lam_fixture_id": "",
        "lam_jig_id": "",
        "lam_nozzle_id": "",
        "bond_equipment_id": "",
        "bond_head_id": "",
        "bond_recipe_id": "",
        "aoi_equipment_id": normalized.get("inspection_station", ""),
        "aoi_station_id": normalized.get("inspection_station", ""),
        "material_lot_glass": "",
        "material_lot_oca": "",
        "material_lot_polarizer": "",
        "material_lot_cover": "",
    }
    for column, value in defaults.items():
        if column not in normalized.columns:
            normalized[column] = value

    if "timestamp" in normalized.columns:
        normalized["timestamp"] = pd.to_datetime(normalized["timestamp"])
        if "hour" in normalized.columns:
            normalized["hour"] = normalized["hour"].fillna(normalized["timestamp"].dt.hour)
        if "day" in normalized.columns:
            normalized["day"] = normalized["day"].fillna(normalized["timestamp"].dt.strftime("%Y-%m-%d"))

    for column in ["width_mm", "height_mm", "length_mm", "angle_deg", "area_mm2"]:
        normalized[column] = pd.to_numeric(normalized[column], errors="coerce").fillna(0.0)

    return normalized