"""商品上传模板导出：从 db 读 SPU/SKU → 调 template_router 路由填入上传模板 Excel。

流程（product_node 生成产品图后调用）：
  1. 从 spu_sku.db 读 SPU（款号）+ 该款选定颜色的全部尺码 SKU；
  2. 用 model/template_router.py 的 TemplateRouter：
       - insert 一行 SPU（SPU货号 + 商品属性字段）
       - 每个尺码 insert 一行 SKU（路由到 SPU 行下方，SKU货号 = 款号-颜色编码-尺码，填尺码表）
       - 商品轮播图1~N 填生成的产品图路径（底图/印花/模特/合成）
  3. save 输出 <模板名>_已填写.xlsx 到指定目录。

字段映射：db 字段名 → 上传模板列名（见 SPU_MAP / SKU_MAP）。
"""
import re
import sys
from pathlib import Path
from typing import Any, Dict, List, Optional

from graph.product import _connect

# 商品轮播图列名关键词（模板存在中/英/日变体，如 商品轮播图1 / Product Carousel Image 1 / 商品カルーセル画像1）
_CAROUSEL_KW = ("轮播", "carousel", "カルーセル")

# 成分值字典映射：db 成分值 → 女装模板下拉框选项（男装模板选项与 db 值一致，直接保留）。
# 女装模板（如 SatVoy 沙特）成分下拉框是「中文+英文」格式（棉Cotton），db 存中文（棉），需映射。
# 该字典为「内置默认」，运行时可被 config.yaml 顶层 component_map.female 覆盖（缺失/留空回退这里）。
_COMPONENT_FEMALE_MAP = {
    "棉": "棉Cotton",
    "聚酯纤维": "聚酯纤维(涤纶)Polyester",
    "氨纶": "氨纶Elastane",
    "锦纶": "锦纶(尼龙)Polyamide",
    "再生聚酯纤维": "聚酯纤维(涤纶)Polyester",   # 女装无再生聚酯纤维，归入聚酯纤维
    "棉Cotton": "棉Cotton",                       # 已是女装格式，保持
}


def _resolve_component_map(config: Optional[Dict[str, Any]]) -> Dict[str, Any]:
    """从 config 读取可配置成分映射（config.component_map.female），缺失/留空回退内置默认。

    仅作用于 component_1/2/3；material 字段不经过任何映射，原样透传。
    """
    if not config:
        return dict(_COMPONENT_FEMALE_MAP)
    female = None
    try:
        cm = config.get("component_map") or {}
        female = (cm.get("female") or {}) if isinstance(cm, dict) else {}
    except Exception:  # noqa: BLE001
        female = {}
    if not isinstance(female, dict) or not female:
        return dict(_COMPONENT_FEMALE_MAP)
    merged = dict(_COMPONENT_FEMALE_MAP)
    merged.update({str(k): v for k, v in female.items() if v not in (None, "")})
    return merged


def _map_component(value: Any, gender: Optional[str], cmp_map: Optional[Dict[str, Any]] = None) -> Any:
    """成分值按性别映射（仅 component 字段，不作用于 material）：male/None 保留原值；
    female 查成分映射表（默认内置、可由 config 覆盖，找不到保留原值）。"""
    if gender != "female" or value in (None, ""):
        return value
    mapping = cmp_map if cmp_map is not None else _COMPONENT_FEMALE_MAP
    return mapping.get(value, value)


# 季节值字典映射：db 季节值 → 女装模板下拉框选项（男装模板与 db 值一致，直接保留）。
# 女装模板（如 SatVoy 沙特）季节下拉框用「ALL/全球/所有」等英文+中文格式，db 存「四季」，需映射。
# 该字典为「内置默认」，运行时可被 config.yaml 顶层 season_map.female 覆盖（缺失/留空回退这里）。
_SEASON_FEMALE_MAP = {
    "四季": "ALL/全球/所有",
}


# 印花图案值字典映射：db pattern 值 → 女装模板下拉框选项（男装模板与 db 值一致，直接保留）。
# 女装模板遇到 pattern="印花" 时映射为「卡通」；该字典为「内置默认」，
# 运行时可被 config.yaml 顶层 pattern_map.female 覆盖（缺失/留空回退这里）。
_PATTERN_FEMALE_MAP = {
    "印花": "卡通",
}


def _resolve_pattern_map(config: Optional[Dict[str, Any]]) -> Dict[str, Any]:
    """从 config 读取可配置图案映射（config.pattern_map.female），缺失/留空回退内置默认。

    仅作用于 spu.pattern 字段（女装模板时映射，男装/None 保留原值）。
    """
    if not config:
        return dict(_PATTERN_FEMALE_MAP)
    female = None
    try:
        pm = config.get("pattern_map") or {}
        female = (pm.get("female") or {}) if isinstance(pm, dict) else {}
    except Exception:  # noqa: BLE001
        female = {}
    if not isinstance(female, dict) or not female:
        return dict(_PATTERN_FEMALE_MAP)
    merged = dict(_PATTERN_FEMALE_MAP)
    merged.update({str(k): v for k, v in female.items() if v not in (None, "")})
    return merged


def _map_pattern(value: Any, gender: Optional[str], pattern_map: Optional[Dict[str, Any]] = None) -> Any:
    """图案值按性别映射（仅 spu.pattern 字段）：male/None 保留原值；
    female 查图案映射表（默认内置、可由 config 覆盖，找不到保留原值），如「印花」→「卡通」。"""
    if gender != "female" or value is None:
        return value
    v = str(value).strip()
    mapping = pattern_map if pattern_map is not None else _PATTERN_FEMALE_MAP
    return mapping.get(v, value)


def _resolve_season_map(config: Optional[Dict[str, Any]]) -> Dict[str, Any]:
    """从 config 读取可配置季节映射（config.season_map.female），缺失/留空回退内置默认。

    仅作用于 spu.season 字段（女装模板时映射，男装/None 保留原值）。
    """
    if not config:
        return dict(_SEASON_FEMALE_MAP)
    female = None
    try:
        sm = config.get("season_map") or {}
        female = (sm.get("female") or {}) if isinstance(sm, dict) else {}
    except Exception:  # noqa: BLE001
        female = {}
    if not isinstance(female, dict) or not female:
        return dict(_SEASON_FEMALE_MAP)
    merged = dict(_SEASON_FEMALE_MAP)
    merged.update({str(k): v for k, v in female.items() if v not in (None, "")})
    return merged


def _map_season(value: Any, gender: Optional[str], season_map: Optional[Dict[str, Any]] = None) -> Any:
    """季节值按性别映射（仅 spu.season 字段）：male/None 保留原值；
    female 查季节映射表（默认内置、可由 config 覆盖，找不到保留原值）。"""
    if gender != "female" or value in (None, ""):
        return value
    mapping = season_map if season_map is not None else _SEASON_FEMALE_MAP
    return mapping.get(str(value), value)


def _template_gender(template_path: str) -> Optional[str]:
    """通过表头解析模版「类目」判断男装/女装：类目含「男」→male；含「女」→female；都不含→None。
    用于成分值映射（女装模板下拉框是「中文+英文」格式，需字典映射；男装保留 db 值）。"""
    try:
        from graph.seed_shot import gender_from_category, read_template_category
        return gender_from_category(read_template_category(template_path))
    except Exception:  # noqa: BLE001
        return None


def _size_rank(size) -> tuple:
    """把尺码字符串转成可排序 rank（从小到大）。

    优先级：数字码(90/100...) < 字母码(XS/S/M/L/XL/XXL/3XL...) < 童装年龄码(0/3M、1-2Y...)
            < 尺寸规格(30*40...) < 未知(字典序兜底) < 均码/Onesize(最后)。
    """
    s = str(size or "").strip().upper()
    if not s:
        return (9, 0, "")
    if s in ("ONESIZE", "ONE SIZE", "FREESIZE", "FREE SIZE", "均码"):
        return (8, 0, s)
    if s == "XS":
        return (2, 0, s)
    if s in ("S", "M", "L"):
        return (2, {"S": 1, "M": 2, "L": 3}[s], s)
    m = re.fullmatch(r"(X+)(L)", s)          # XL/XXL/XXXL/XXXXL/XXXXXL
    if m:
        return (2, 3 + len(m.group(1)), s)
    m = re.fullmatch(r"(\d+)XL", s)          # 3XL/4XL/5XL
    if m:
        return (2, 3 + int(m.group(1)), s)
    if s.isdigit():                          # 数字码：90/100/110...
        return (1, int(s), s)
    m = re.fullmatch(r"(\d+)\s*[-/]\s*(\d+)\s*(?:M|Y|YRS|YR)?", s)   # 童装年龄码
    if m:
        return (3, (int(m.group(1)) + int(m.group(2))) / 2.0, s)
    m = re.search(r"(\d+(?:\.\d+)?)\s*(?:CM)?\s*[X*]", s)            # 尺寸规格：30*40/12CM X 12CM
    if m:
        return (4, float(m.group(1)), s)
    return (5, 0, s)                         # 未知格式：字典序兜底


def _carousel_col(router, idx: int) -> Optional[int]:
    """定位「商品轮播图{idx}」列号：先精确匹配（中文列名），失败则按中/英/日关键词模糊匹配序号。"""
    try:
        return router.resolve_col(f"商品轮播图{idx}")
    except KeyError:
        pass
    for name, col in router.column_map.items():
        low = str(name).lower().replace(" ", "").replace("　", "")
        if not any(k in low for k in _CAROUSEL_KW):
            continue
        m = re.search(r"(\d+)$", low)
        if m and int(m.group(1)) == idx:
            return col
    return None


def _detail_col(router) -> Optional[int]:
    """定位「详情图文」列：优先英语（详情图文-英语），回退日语（详情图文-日语），再回退任意详情图文。"""
    for name in ("详情图文-英语", "详情图文-英文", "详情图文-EN"):
        try:
            return router.resolve_col(name)
        except KeyError:
            pass
    try:
        return router.resolve_col("详情图文-日语")
    except KeyError:
        pass
    for name, col in router.column_map.items():
        if "详情图文" in str(name):
            return col
    return None


def _ja_col(router) -> Optional[int]:
    """定位「日语名称」列（基础信息组，如 日语名称/日语标题）。"""
    try:
        return router.resolve_col("日语名称")
    except KeyError:
        pass
    for name, col in router.column_map.items():
        low = str(name)
        if "日语" in low and "详情图文" not in low and "轮播图" not in low and "名称" in low:
            return col
    return None


def _es_col(router) -> Optional[int]:
    """定位「西语名称」列（基础信息组，如 西语名称/西班牙语名称）。"""
    try:
        return router.resolve_col("西语名称")
    except KeyError:
        pass
    for name, col in router.column_map.items():
        low = str(name)
        if ("西语" in low or "西班牙" in low) and "详情图文" not in low and "轮播图" not in low and "名称" in low:
            return col
    return None


def _fill_design_fields(router, spu_code: str, oss_code: str, cn_title: str, en_title: str,
                        ja_title: str, es_title: str, composite_by_sku: Dict[str, Any],
                        all_composite_urls: List[str], seed_shot_urls: List[str],
                        only_rows: Optional[List[int]] = None) -> None:
    """按用户要求填充设计联动字段：
    - SPU 行：SPU货号=设计货号、SKU货号=设计货号、商品名称=en_title、英文名称=en_title、
      日语名称=ja_title、西语名称=es_title、商品轮播图1=随机一张三合一主图、
      详情图文=全部主图+种草图 链接 | 分割（不含 img_url_2）
    - SKU 行：SPU货号=设计货号、SKU货号=该颜色货号、商品轮播图1=该颜色三合一链接、
      商品名称/英文名称/日语名称/西语名称 与 SPU 一致
    only_rows：合并模式下只填充本产品块的行（None=该款全部行）
    """
    import random
    try:
        color_col = router.resolve_col("色值(主规格)")
    except KeyError:
        color_col = None
    try:
        spu_col = router.resolve_col("SPU货号")
    except KeyError:
        spu_col = None
    try:
        name_col = router.resolve_col("商品名称")
    except KeyError:
        name_col = None
    try:
        en_col = router.resolve_col("英文名称")
    except KeyError:
        en_col = None
    try:
        ja_col = _ja_col(router)
    except KeyError:
        ja_col = None
    try:
        es_col = _es_col(router)
    except KeyError:
        es_col = None
    try:
        sku_code_col = router.resolve_col("SKU货号")
    except KeyError:
        sku_code_col = None
    car1 = _carousel_col(router, 1)
    detail_col = _detail_col(router)

    for row in router.find_spu_rows(spu_code):
        if only_rows is not None and row not in only_rows:
            continue   # 合并模式：只填本产品块的行
        lvl = str(router.ws.cell(row, router.level_col).value or "").strip().lower()
        color = str(router.ws.cell(row, color_col).value or "").strip() if color_col else ""
        if lvl == "spu":
            if spu_col and oss_code:
                router.ws.cell(row, spu_col, oss_code)
            if sku_code_col and oss_code:
                router.ws.cell(row, sku_code_col, oss_code)
            if name_col and en_title:
                router.ws.cell(row, name_col, en_title)      # 商品名称统一用 en_title
            if en_col and en_title:
                router.ws.cell(row, en_col, en_title)
            if ja_col and ja_title:
                router.ws.cell(row, ja_col, ja_title)
            if es_col and es_title:
                router.ws.cell(row, es_col, es_title)
            if car1 is not None and all_composite_urls:
                router.ws.cell(row, car1, random.choice(all_composite_urls))   # SPU 轮播图1 随机
            if detail_col is not None:
                links = [u for u in (all_composite_urls + list(seed_shot_urls or [])) if u]
                if links:
                    router.ws.cell(row, detail_col, "|".join(links))          # 详情图文 | 分割
        else:
            if spu_col and oss_code:
                router.ws.cell(row, spu_col, oss_code)
            # SKU 行与 SPU 一致：商品名称/英文名称/日语名称/西语名称
            if name_col and en_title:
                router.ws.cell(row, name_col, en_title)      # 商品名称统一用 en_title
            if en_col and en_title:
                router.ws.cell(row, en_col, en_title)
            if ja_col and ja_title:
                router.ws.cell(row, ja_col, ja_title)
            if es_col and es_title:
                router.ws.cell(row, es_col, es_title)
            cc = composite_by_sku.get(color) or composite_by_sku.get("")      # 按色值匹配该颜色主图
            if sku_code_col and oss_code:
                router.ws.cell(row, sku_code_col, oss_code)                   # SKU货号=SPU货号（同一货号）
            if car1 is not None and cc and cc.get("url"):
                router.ws.cell(row, car1, cc["url"])                          # 该颜色轮播图1


def _build_spu_row(spu: Dict[str, Any], spu_code: str,
                   color: Optional[str] = None,
                   fabric_headers: Optional[List[str]] = None,
                   gender: Optional[str] = None,
                   component_map: Optional[Dict[str, Any]] = None,
                   season_map: Optional[Dict[str, Any]] = None,
                   pattern_map: Optional[Dict[str, Any]] = None,
                   oss_code: str = "") -> Dict[str, Any]:
    """构造一行 SPU（固定字段：SKC货号=当前生成货号、风格=休闲、商品产地=中国大陆、产地省份=广东省；多颜色时用色值区分）。
    fabric 填「面料弹性」列（fabric_headers，如 SPU商品属性-面料弹性，检测到才填 spu.fabric）。
    component_1/2/3 按性别映射（gender=female 时查成分映射表 component_map，男装/None 保留原值；
    material 字段不经过任何映射，原样透传）。
    season 按性别映射（gender=female 时查季节映射表 season_map，如「四季」→「ALL/全球/所有」）。
    pattern 按性别映射（gender=female 时空值查图案映射表 pattern_map，如空值→「卡通」）。"""
    row: Dict[str, Any] = {
        "基础信息-商品层级": "spu",
        "SKC货号": oss_code or spu_code,   # SKC货号 = 当前生成货号 oss_code（无则回退 spu_code）
        "风格": "休闲",              # style 路由为"休闲"（用户要求）
        "商品产地": "中国大陆",        # 所有国家统一「中国大陆」，不读经营站点/不做字典匹配（用户要求）
        "产地省份": "广东省",          # 新增：精确匹配「产地省份」列，统一填「广东省」（用户要求）
        "款式来源": "现货款",        # SPU商品属性-款式来源 统一填「现货款」（用户要求）
    }
    if color:
        row["色值(主规格)"] = color
    for dbk, header in SPU_MAP.items():
        v = spu.get(dbk)
        if dbk in ("component_1", "component_2", "component_3"):
            v = _map_component(v, gender, component_map)
        elif dbk == "season":
            v = _map_season(v, gender, season_map)
        elif dbk == "pattern":
            v = _map_pattern(v, gender, pattern_map)
        if v not in (None, ""):
            row[header] = v
    fabric = spu.get("fabric")
    if fabric not in (None, "") and fabric_headers:
        for h in fabric_headers:
            row[h] = fabric
    return row


def _find_price_headers(router) -> List[str]:
    """定位所有「申报价格」列（美站/日站/英站…模糊匹配）；匹配到多个时全部返回，统一填加价后价格。"""
    hits = [str(k) for k in router.column_map if "申报价格" in str(k)]
    return hits or ["申报价格-日本站"]


def _find_bust_headers(router) -> List[str]:
    """定位所有「胸围」列（基码表-胸围（cm）/胸围全围（cm）…模糊匹配）；匹配到多个时全部填 sku.bust。"""
    hits = [str(k) for k in router.column_map if "胸围" in str(k)]
    return hits or ["胸围全围（cm）"]


def _find_fabric_headers(router) -> List[str]:
    """定位所有「面料弹性」列（SPU商品属性-面料弹性…模糊匹配）；匹配到多个时全部填 spu.fabric。"""
    return [str(k) for k in router.column_map if "面料弹性" in str(k)]


def _find_sa_size_headers(router) -> List[str]:
    """定位所有「沙特阿拉伯码」列（尺码表-沙特阿拉伯码…模糊匹配）；匹配到多个时全部填 sku.size。"""
    return [str(k) for k in router.column_map if "沙特阿拉伯码" in str(k)]


def _find_suggested_price_headers(router) -> List[str]:
    """定位「建议售价」列（不含「单位」）；匹配到多个时全部返回。"""
    return [str(k) for k in router.column_map if "建议售价" in str(k) and "单位" not in str(k)]


def _find_suggested_unit_headers(router) -> List[str]:
    """定位「建议售价单位」列。"""
    return [str(k) for k in router.column_map if "建议售价单位" in str(k)]


def _read_range_values(ws, ref: str) -> Optional[set]:
    """读取单元格/区域内的非空值集合；解析失败返回 None。"""
    try:
        cells = ws[ref]
    except Exception:  # noqa: BLE001
        return None
    opts = []
    if isinstance(cells, (list, tuple)):
        for row in cells:
            for cell in row:
                if cell.value not in (None, ""):
                    opts.append(str(cell.value).strip())
    else:
        if cells.value not in (None, ""):
            opts.append(str(cells.value).strip())
    return set(opts) if opts else None


def _read_size_options(router) -> Optional[set]:
    """读取「尺码」列的 dataValidation 下拉选项集合；无下拉/非 list/无值 返回 None。

    仅作「尺码下拉受限时过滤 SKU 行」用：sku.size 不在下拉选项内则该 SKU 行跳过。
    支持下拉直接内联（"S,M,L"）、引用区域（"=Sheet!$A$1:$A$5"）、动态引用（INDIRECT(...)）。
    动态引用无法解析（INDIRECT 指向空单元格/公式/跨表）→ 返回 None（不启用过滤，避免误杀全部 SKU 行）。"""
    import re
    from openpyxl.utils import get_column_letter
    col = router.column_map.get("尺码") or router.column_map.get("商品规格-尺码")
    if col is None:
        return None
    lf = get_column_letter(col)
    dvs = getattr(router.ws, "data_validations", None)
    if dvs is None:
        return None
    for dv in dvs.dataValidation:
        if getattr(dv, "type", "") != "list":
            continue
        if lf not in str(getattr(dv, "sqref", "")):
            continue
        f = (getattr(dv, "formula1", "") or "").strip()
        if not f:
            continue
        # 动态引用 INDIRECT(...)：尝试解析引用的单元格/区域内容；无法解析 → 不过滤
        m = re.match(r"^=?INDIRECT\((.+)\)$", f, re.IGNORECASE)
        if m:
            opts = _read_range_values(router.ws, m.group(1).strip())
            return opts if opts else None
        # 引用区域（=Sheet!$A$1:$A$5 或 Sheet!$A$1:$A$5）
        ref = f[1:] if f.startswith("=") else f
        if ":" in ref:
            opts = _read_range_values(router.ws, ref)
            return opts if opts else None
        # 内联列表（"S,M,L" / "S;M;L" / "S，M，L"）
        sep = "，" if "，" in f else (";" if ";" in f else ",")
        opts = [x.strip() for x in f.split(sep) if x.strip()]
        return set(opts) if opts else None
    return None


def _find_sku_category_headers(router) -> List[str]:
    """定位「SKU分类」列（模糊匹配，同建议售价检测方式）；匹配到多个时全部返回。"""
    return [str(k) for k in router.column_map if "SKU分类" in str(k)]


def _find_sku_qty_headers(router) -> List[str]:
    """定位「SKU数量」列（排除「SKU数量单位」列）；匹配到多个时全部返回。"""
    return [str(k) for k in router.column_map if "SKU数量" in str(k) and "单位" not in str(k)]


def _find_sku_qty_unit_headers(router) -> List[str]:
    """定位「SKU数量单位」列。"""
    return [str(k) for k in router.column_map if "SKU数量单位" in str(k)]


def _build_sku_row(spu_code: str, sc: str, sk: Dict[str, Any], size: str, color: str,
                   warehouses: List[str], markup_percent: float = 0.0,
                   multi: bool = True, price_header: str = "申报价格-日本站",
                   bust_headers: Optional[List[str]] = None,
                   price_headers: Optional[List[str]] = None,
                   sa_size_headers: Optional[List[str]] = None,
                   suggested_price_ratio: float = 0.0,
                   suggested_price_headers: Optional[List[str]] = None,
                   suggested_unit_headers: Optional[List[str]] = None,
                   sku_category_headers: Optional[List[str]] = None,
                   sku_qty_headers: Optional[List[str]] = None,
                   sku_qty_unit_headers: Optional[List[str]] = None,
                   oss_code: str = "",
                   size_options: Optional[set] = None) -> Dict[str, Any]:
    """构造一行 SKU（固定字段：SPU货号、SKC货号=当前生成货号 oss_code、规格类型2、币种 CNY、发货仓1~N 及库存 200）。
    价格（price_headers 列，如 申报价格-美国站/日本站，模糊匹配到多个时全部填）= SKU.price × (1+markup/100)，
    预先填好。建议售价（suggested_price_headers 列，模板「建议售价」必填时才填）= 申报价格 × (1+suggested_price_ratio/100)，
    填了建议售价同时填「建议售价单位」=CNY。bust 填所有「胸围」列（bust_headers，如 基码表-胸围（cm）/胸围全围（cm），检测到才填）。
    size 填「尺码」列 + 所有「沙特阿拉伯码」列（sa_size_headers，如 尺码表-沙特阿拉伯码，检测到才填）。
    规格类型2 统一填「尺码」两个字（不是 size 参数值）。"""
    row: Dict[str, Any] = {
        "基础信息-商品层级": "sku",
        "SPU货号": spu_code,
        "SKC货号": oss_code or spu_code,   # SKC货号 = 当前生成货号 oss_code（无则回退 spu_code）
        "色值(主规格)": color,
        "规格类型2": "尺码",                # 规格类型2 统一填「尺码」（不填 size 值）
        "币种": "CNY",
    }
    if price_headers is None:
        price_headers = [price_header]
    if bust_headers is None:
        bust_headers = ["胸围全围（cm）"]
    if sa_size_headers is None:
        sa_size_headers = []
    for j, w in enumerate(warehouses, start=1):
        row[f"发货仓{j}"] = w
        row[f"发货仓{j}库存"] = 200
    for dbk, header in SKU_MAP.items():
        if dbk == "color":
            continue
        v = sk.get(dbk)
        if dbk == "bust":
            if v in (None, ""):
                continue
            for h in bust_headers:
                row[h] = v
            continue
        if dbk == "price":
            if v in (None, ""):
                continue
            v = round(float(v) * (1 + markup_percent / 100), 2)   # 申报价格 = price × (1+加价%)
            for h in price_headers:
                row[h] = v
            # 建议售价 = 申报价格 × (1+建议售价比例%)；统一必填，填了同时填单位 CNY
            if suggested_price_headers and suggested_price_ratio > 0:
                suggested = round(v * (1 + suggested_price_ratio / 100), 2)
                for h in suggested_price_headers:
                    row[h] = suggested
                    for uh in suggested_unit_headers:
                        row[uh] = "CNY"
            continue
        if dbk == "size":
            if v in (None, ""):
                continue
            if size_options is not None and v not in size_options:
                return None   # 尺码不在模板下拉框选项内，跳过该 SKU 行
            row[header] = v
            for h in sa_size_headers:
                row[h] = v
            continue
        if v not in (None, ""):
            row[header] = v
    # SKU 分类/数量/数量单位：模板检测到这些列（且非「非必填」）时统一填固定值（单品 / 1 / 件）
    for h in (sku_category_headers or []):
        row[h] = "单品"
    for h in (sku_qty_headers or []):
        row[h] = 1
    for h in (sku_qty_unit_headers or []):
        row[h] = "件"
    return row


def _fill_sku_carousel(router, spu_code: str, color: str, color_col: int,
                       first: Dict[str, Any], sku_imgs: List[str]) -> None:
    """SKU 行商品轮播图2~5：db img_url_2~5 优先，无则回退生成图；按色值列匹配所属 SKU 行。"""
    for j in range(2, 6):
        url = first.get(f"img_url_{j}")            # db CDN url（该颜色 SKU 的 img_url_2~5）
        img = url if url not in (None, "") else (sku_imgs[j - 2] if j - 2 < len(sku_imgs) else None)
        if not img:
            continue
        col = _carousel_col(router, j)
        if col is None:
            continue
        for row in router.find_spu_rows(spu_code):
            if (str(router.ws.cell(row, router.level_col).value or "").strip().lower() == "sku"
                    and str(router.ws.cell(row, color_col).value or "").strip() == color):
                router.ws.cell(row, col, str(img))

# db SPU 字段 -> 上传模板列名
SPU_MAP: Dict[str, str] = {
    "code": "SPU货号",
    "material": "材质",
    "component_1": "成分1",
    "component_proportion_1": "成分1成分比例",
    "component_2": "成分2",
    "component_proportion_2": "成分2成分比例",
    "component_3": "成分3",
    "component_proportion_3": "成分3成分比例",
    "pattern": "图案",
    "details": "细节",
    "collar_style": "领型",
    "care_Instructions": "护理说明",
    "fabric": "面料",
    "target_audience": "适用人群",
    "season": "季节",
    "is_transparent": "是否透明",
    "weaving_method": "织造方式",
    "printing_type": "印花类型",
    "fabric_texture_1": "面料纹理1",
    "fabric_weight_1": "面料克重1（g/m²)",
    "fabric_weight_unit_1": "面料克重1（g/m²)单位",
    "lining_texture": "里料纹理",
    "placket_type": "SPU商品属性-门襟类型",
    "sleeve_type": "SPU商品属性-袖型",
    "sleeve_length_type": "SPU商品属性-袖长",
    "breast_pad": "SPU商品属性-胸垫",
    "layout": "SPU商品属性-版型",
    "silhouette": "SPU商品属性-廓形",
    "length_type": "SPU商品属性-长度",
    "belt": "SPU商品属性-腰带",
    "occasion": "SPU商品属性-场合",
    "scene": "SPU商品属性-场景",
    "hemline_shape": "SPU商品属性-下摆形状",
}

# db SKU 字段 -> 上传模板列名
SKU_MAP: Dict[str, str] = {
    "color": "色值(主规格)",
    "size": "尺码",
    "size_group": "尺码组别",
    "size_type": "尺码类型",
    "shoulder_width": "肩宽（cm）",
    "bust": "胸围全围（cm）",
    "clothing_length": "衣长（cm）",
    "sleeve_length": "袖长（cm）",
    "longest_side": "最长边（cm）",
    "secondary_long_side": "次长边（cm）",
    "shortest_side": "最短边（cm）",
    "package_weight": "重量（g）",   # 包装重量：从 db 提取
    "price": "申报价格-日本站",
}


def _read_spu(db_path, spu_code: str) -> Optional[Dict[str, Any]]:
    conn = _connect(db_path)
    row = conn.execute("SELECT * FROM SPU WHERE code = ?", (spu_code,)).fetchone()
    conn.close()
    return dict(row) if row else None


def _read_meta(router) -> tuple:
    """读模板顶头元信息：发货仓（按标签名精准定位，不依赖固定行列）。

    返回 warehouses：发货仓按「、」分隔的列表（如「名古屋仓、inkreach——东京」→ 2 个）。
    商品产地/产地省份已固定为「中国大陆/广东省」写死在 _build_spu_row，不再读取经营站点。"""
    ws = router.ws
    top = max(1, router.group_row - 1)   # 元信息区位于分组行之前

    def _val(label: str) -> str:
        for row in range(1, top + 1):
            for col in range(1, min(ws.max_column, 30) + 1):
                if str(ws.cell(row, col).value or "").strip() == label:
                    return str(ws.cell(row + 1, col).value or "").strip()
        return ""

    raw = _val("发货仓")
    if not raw:
        # 回退：旧版固定位置（第2行第2列=发货仓）
        raw = str(ws.cell(2, 2).value or "").strip()
    warehouses = [w.strip() for w in raw.split("、") if w.strip()]
    return warehouses


def _read_skus(db_path, spu_code: str, sku_code: str) -> List[Dict[str, Any]]:
    """该款该颜色的全部尺码 SKU，按尺码从小到大排序（字母码/数字码/童装码/规格码）。"""
    conn = _connect(db_path)
    rows = conn.execute(
        """SELECT s.*, p.code AS spu_code FROM SKU s
           JOIN SPU p ON s.spu_id = p.id
           WHERE p.code = ? AND s.code = ?""", (spu_code, sku_code)).fetchall()
    conn.close()
    skus = [dict(r) for r in rows]
    skus.sort(key=lambda sk: _size_rank(sk.get("size")))
    return skus


def _import_router(template_dir: str) -> None:
    """import template_router（优先 config 的 template_dir；打包后回退 _MEIPASS/model；再兜底项目自带 templates/）。"""
    tdir = Path(template_dir)
    candidates = [tdir]
    meipass = getattr(sys, "_MEIPASS", None)
    if meipass:
        candidates.append(Path(meipass) / "model")
    # 用户上传的模板可能在任意目录（无 template_router.py），兜底项目自带 templates/
    from graph.paths import project_root as _proj_root
    candidates.append(_proj_root() / "templates")
    for d in candidates:
        if d.exists() and str(d) not in sys.path:
            sys.path.insert(0, str(d))


def _insert_product_block(
    router, db_path, spu_code, sku_code,
    warehouses, price_headers,
    markup_percent: float = 0.0, images: Optional[List[str]] = None,
    spu_per_color: bool = True,
    oss_code: str = "", cn_title: str = "", en_title: str = "", ja_title: str = "",
    es_title: str = "",
    composite_urls: Optional[List[Dict[str, Any]]] = None,
    seed_shot_urls: Optional[List[str]] = None,
    bust_headers: Optional[List[str]] = None,
    fabric_headers: Optional[List[str]] = None,
    sa_size_headers: Optional[List[str]] = None,
    gender: Optional[str] = None,
    component_map: Optional[Dict[str, Any]] = None,
    season_map: Optional[Dict[str, Any]] = None,
    pattern_map: Optional[Dict[str, Any]] = None,
    suggested_price_ratio: float = 0.0,
    suggested_price_headers: Optional[List[str]] = None,
    suggested_unit_headers: Optional[List[str]] = None,
    sku_category_headers: Optional[List[str]] = None,
    sku_qty_headers: Optional[List[str]] = None,
    sku_qty_unit_headers: Optional[List[str]] = None,
) -> List[int]:
    """在已打开的 router 中插入一个产品的 SPU+SKU 块并填充设计字段，返回本块行号。

    供单产品 export_product 与批量 export_products 复用（批量时只打开/保存一次）。
    """
    spu = _read_spu(db_path, spu_code)
    if spu is None:
        raise ValueError(f"SPU {spu_code} 不存在于 db")
    if isinstance(sku_code, str) and "," in sku_code:
        sku_codes = [s.strip() for s in sku_code.split(",") if s.strip()]
    elif isinstance(sku_code, (list, tuple)):
        sku_codes = list(sku_code)
    else:
        sku_codes = [sku_code]
    skus_by_color: List[tuple] = []
    for sc in sku_codes:
        skus = _read_skus(db_path, spu_code, sc)
        if not skus:
            raise ValueError(f"SKU {sc} 不存在于 db（款号 {spu_code}）")
        skus_by_color.append((sc, skus))
    images = [str(i) for i in (images or []) if i]

    color_col = router.resolve_col("色值(主规格)")
    block_rows: List[int] = []
    size_options = _read_size_options(router)   # 尺码下拉框选项（sku.size 不在其中则跳过该 SKU 行）

    if spu_per_color:
        # 单 SPU 多色：1 个 SPU 行（无色值，SPU 级信息由 _fill_design_fields 填充）
        #    + 全部颜色尺码 SKU 行（色值在 SKU 行区分）
        block_rows.append(router.insert(
            _build_spu_row(spu, spu_code, fabric_headers=fabric_headers,
                           gender=gender, component_map=component_map,
                           season_map=season_map, pattern_map=pattern_map,
                           oss_code=oss_code),
            match="exact",
        ))
        for ci, (sc, skus) in enumerate(skus_by_color):
            first = skus[0]
            color = first.get("color") or sc

            # 该颜色全部尺码 SKU（SKU 行 SPU货号/SKU货号=spu_code，色值区分）
            for i, sk in enumerate(skus):
                size = sk.get("size") or f"{i+1}"
                row = _build_sku_row(spu_code, sc, sk, size, color, warehouses,
                                     markup_percent=markup_percent, multi=True,
                                     bust_headers=bust_headers, price_headers=price_headers,
                                     sa_size_headers=sa_size_headers,
                                     suggested_price_ratio=suggested_price_ratio,
                                     suggested_price_headers=suggested_price_headers,
                                     
                                     suggested_unit_headers=suggested_unit_headers,
                                     sku_category_headers=sku_category_headers,
                                     sku_qty_headers=sku_qty_headers,
                                     sku_qty_unit_headers=sku_qty_unit_headers,
                                     oss_code=oss_code, size_options=size_options)
                if row is None:
                    continue
                block_rows.append(router.insert(row, spu_code=spu_code, match="exact"))

            # 轮播图：首色 SKU 行轮播图1 = 生成首图；SKU 行按色值填 db url/生成图
            if ci == 0 and images:
                col1 = _carousel_col(router, 1)
                if col1 is not None:
                    sku_rows = router.find_sku_rows(spu_code)
                    if sku_rows:
                        router.ws.cell(min(sku_rows), col1, str(images[0]))
            sku_imgs = [x for x in (images[1:] + images[:1]) if x][:4] if (ci == 0 and images) else []
            _fill_sku_carousel(router, spu_code, color, color_col, first, sku_imgs)
    else:
        # 单 SPU + 多颜色变体：1 个 SPU 行（无色值）+ 所有颜色所有尺码 SKU 行（色值区分）
        block_rows.append(router.insert(
            _build_spu_row(spu, spu_code, fabric_headers=fabric_headers,
                           gender=gender, component_map=component_map,
                           season_map=season_map, pattern_map=pattern_map,
                           oss_code=oss_code), match="exact"))
        multi_variant = len(skus_by_color) > 1
        for ci, (sc, skus) in enumerate(skus_by_color):
            first = skus[0]
            color = first.get("color") or sc
            for i, sk in enumerate(skus):
                size = sk.get("size") or f"{i+1}"
                row = _build_sku_row(spu_code, sc, sk, size, color, warehouses,
                                     markup_percent=markup_percent, multi=multi_variant,
                                     bust_headers=bust_headers, price_headers=price_headers,
                                     sa_size_headers=sa_size_headers,
                                     suggested_price_ratio=suggested_price_ratio,
                                     suggested_price_headers=suggested_price_headers,
                                     
                                     suggested_unit_headers=suggested_unit_headers,
                                     sku_category_headers=sku_category_headers,
                                     sku_qty_headers=sku_qty_headers,
                                     sku_qty_unit_headers=sku_qty_unit_headers,
                                     oss_code=oss_code, size_options=size_options)
                if row is None:
                    continue
                block_rows.append(router.insert(row))
            sku_imgs = [x for x in (images[1:] + images[:1]) if x][:4] if (ci == 0 and images) else []
            _fill_sku_carousel(router, spu_code, color, color_col, first, sku_imgs)

    # 设计联动字段：货号/标题/轮播图路由/详情图文（图床链接，| 分割）
    if oss_code or cn_title or en_title or ja_title or es_title or composite_urls:
        by_sku: Dict[str, Any] = {}
        all_urls: List[str] = []
        for cc in (composite_urls or []):
            if cc.get("color"):
                by_sku[str(cc["color"]).strip()] = cc
            if cc.get("url"):
                all_urls.append(str(cc["url"]))
        _fill_design_fields(router, spu_code, oss_code, cn_title, en_title, ja_title,
                            es_title, by_sku, all_urls, seed_shot_urls or [],
                            only_rows=block_rows)

    return block_rows


def export_product(
    db_path,
    spu_code: str,
    sku_code,  # str | List[str]：单颜色或多个颜色
    template_dir: str,
    template_path: str,
    out_path: str,
    images: Optional[List[str]] = None,
    spu_per_color: bool = True,
    oss_code: str = "",
    cn_title: str = "",
    en_title: str = "",
    ja_title: str = "",
    es_title: str = "",
    composite_urls: Optional[List[Dict[str, Any]]] = None,
    seed_shot_urls: Optional[List[str]] = None,
    append_to: str = "",
    markup_percent: float = 0.0,
    suggested_price_ratio: float = 0.0,
    component_map: Optional[Dict[str, Any]] = None,
    season_map: Optional[Dict[str, Any]] = None,
    pattern_map: Optional[Dict[str, Any]] = None,
) -> Path:
    """生成商品上传"已填写"模板（支持多产品合并到同一文件）。

    sku_code       ：SKU 颜色编码，支持单个 str 或多个（list/tuple/逗号分隔字符串）。
    spu_per_color  ：True（默认）= 每个颜色导出一个 SPU 块；False = 单 SPU 下挂所有颜色 SKU 变体。
    template_dir   ：template_router.py 所在目录（用于 import）
    template_path  ：商品上传模版 xlsx 路径
    images         ：生成的产品图路径列表（仅作用于第一个颜色块：SPU 行轮播图1 + SKU 行回退）
    oss_code       ：设计货号（前缀+3位计数），SPU货号/SKU货号 列均填它
    cn_title       ：商品名称（中文标题）
    en_title       ：英文名称（英文标题）
    ja_title       ：日语名称（日语标题，JP 模板生成）
    es_title       ：西语名称（西班牙语标题，ES 模板生成）
    composite_urls：[{"sku_code","color","url","code"}] 每色三合一主图（含图床链接与货号）
    seed_shot_urls ：种草图图床链接列表（详情图文 | 拼接用）
    append_to      ：已有输出文件路径；提供则在其基础上追加本产品块（一次任务多产品合并一个模板）
    markup_percent ：加价百分比，申报价格 = SKU.price × (1+markup/100) 预填
    返回输出文件路径。
    """
    _import_router(template_dir)
    from template_router import TemplateRouter  # noqa: E402

    # append_to：合并模式从已有输出文件继续追加（一次任务多产品填一个模板）
    router = TemplateRouter(append_to if append_to else template_path)
    try:
        warehouses = _read_meta(router)
        price_headers = _find_price_headers(router)   # 申报价格列（美站/日站/英站…模糊匹配，多个全填）
        bust_headers = _find_bust_headers(router)     # 胸围列（基码表-胸围（cm）/胸围全围（cm）…多个全填）
        fabric_headers = _find_fabric_headers(router)     # 面料弹性列（SPU商品属性-面料弹性…检测到才填）
        sa_size_headers = _find_sa_size_headers(router)   # 沙特阿拉伯码列（尺码表-沙特阿拉伯码…检测到才填）
        gender = _template_gender(template_path)          # 类目含「男」→male /「女」→female（成分值映射用）
        suggested_price_headers = _find_suggested_price_headers(router)   # 建议售价列（不含单位）
        suggested_unit_headers = _find_suggested_unit_headers(router)     # 建议售价单位列
        
        sku_category_headers = _find_sku_category_headers(router)   # SKU分类列（存在即填默认值「单品」）
        sku_qty_headers = _find_sku_qty_headers(router)             # SKU数量列（存在即填 1）
        sku_qty_unit_headers = _find_sku_qty_unit_headers(router)   # SKU数量单位列（存在即填「件」）
        _insert_product_block(router, db_path, spu_code, sku_code,
                              warehouses, price_headers,
                              markup_percent=markup_percent, images=images,
                              spu_per_color=spu_per_color,
                              oss_code=oss_code, cn_title=cn_title, en_title=en_title,
                              ja_title=ja_title, es_title=es_title,
                              composite_urls=composite_urls,
                              seed_shot_urls=seed_shot_urls,
                              bust_headers=bust_headers,
                              fabric_headers=fabric_headers,
                              sa_size_headers=sa_size_headers,
                              gender=gender,
                              component_map=component_map,
                              season_map=season_map,
                              pattern_map=pattern_map,
                              suggested_price_ratio=suggested_price_ratio,
                              suggested_price_headers=suggested_price_headers,
                              
                              suggested_unit_headers=suggested_unit_headers,
                              sku_category_headers=sku_category_headers,
                              sku_qty_headers=sku_qty_headers,
                              sku_qty_unit_headers=sku_qty_unit_headers)
        out = router.save(out_path)
        return Path(out)
    finally:
        try:
            router.close()
        except Exception:
            pass


def export_products(
    db_path,
    products: List[Dict[str, Any]],
    template_dir: str,
    template_path: str,
    out_path: str,
    markup_percent: float = 0.0,
    suggested_price_ratio: float = 0.0,
    component_map: Optional[Dict[str, Any]] = None,
    season_map: Optional[Dict[str, Any]] = None,
    pattern_map: Optional[Dict[str, Any]] = None,
) -> Path:
    """批量合并导出：所有产品一次性写入同一模板，只打开/保存一次。

    products 每项字段：spu_code / sku_codes（str 或 list）/ oss_code / cn_title / en_title /
    ja_title / es_title / composite_urls / seed_shot_urls / images / spu_per_color。
    相比逐产品调用 export_product（每次全量读写工作簿），批量模式显著提速。
    """
    _import_router(template_dir)
    from template_router import TemplateRouter  # noqa: E402

    router = TemplateRouter(template_path)
    try:
        warehouses = _read_meta(router)
        price_headers = _find_price_headers(router)   # 申报价格列（美站/日站/英站…模糊匹配，多个全填）
        bust_headers = _find_bust_headers(router)     # 胸围列（基码表-胸围（cm）/胸围全围（cm）…多个全填）
        fabric_headers = _find_fabric_headers(router)     # 面料弹性列（SPU商品属性-面料弹性…检测到才填）
        sa_size_headers = _find_sa_size_headers(router)   # 沙特阿拉伯码列（尺码表-沙特阿拉伯码…检测到才填）
        gender = _template_gender(template_path)          # 类目含「男」→male /「女」→female（成分值映射用）
        suggested_price_headers = _find_suggested_price_headers(router)   # 建议售价列（不含单位）
        suggested_unit_headers = _find_suggested_unit_headers(router)     # 建议售价单位列
        
        sku_category_headers = _find_sku_category_headers(router)   # SKU分类列（存在即填默认值「单品」）
        sku_qty_headers = _find_sku_qty_headers(router)             # SKU数量列（存在即填 1）
        sku_qty_unit_headers = _find_sku_qty_unit_headers(router)   # SKU数量单位列（存在即填「件」）
        for r in products:
            try:
                _insert_product_block(
                    router, db_path, r.get("spu_code", ""),
                    r.get("sku_codes") or r.get("sku_code") or "",
                    warehouses, price_headers,
                    markup_percent=markup_percent,
                    images=r.get("images"),
                    spu_per_color=bool(r.get("spu_per_color", True)),
                    oss_code=r.get("oss_code", ""),
                    cn_title=r.get("cn_title", ""),
                    en_title=r.get("en_title", ""),
                    ja_title=r.get("ja_title", ""),
                    es_title=r.get("es_title", ""),
                    composite_urls=r.get("composite_urls"),
                    seed_shot_urls=r.get("seed_shot_urls"),
                    bust_headers=bust_headers,
                    fabric_headers=fabric_headers,
                    sa_size_headers=sa_size_headers,
                    gender=gender,
                    component_map=component_map,
                    season_map=season_map,
                    pattern_map=pattern_map,
                    suggested_price_ratio=suggested_price_ratio,
                    suggested_price_headers=suggested_price_headers,
                    
                    suggested_unit_headers=suggested_unit_headers,
                    sku_category_headers=sku_category_headers,
                    sku_qty_headers=sku_qty_headers,
                    sku_qty_unit_headers=sku_qty_unit_headers,
                )
            except Exception as e:  # noqa: BLE001
                print(f"[template_export] 产品 {r.get('spu_code')} 写入失败，跳过: {e}")
                continue
        out = router.save(out_path)
        return Path(out)
    finally:
        try:
            router.close()
        except Exception:
            pass