"""
   @Author      : CT
   @Description : 导出没有keepa数据的流量选品ASIN
                  筛选条件（两种模式通用）：
                    - asin_type in (0, 1, 3)
                    - asin_price > 0
                    - asin_bought_month >= 50 OR first_category_rank <= 600000
                    - 排除数字类目
                    - 排除 dim_keepa_asin_info 中已有 keepa 数据的 ASIN
                    - 排除 {site_name}_asin_profit_keepa_add 中已导出的 ASIN

                  date_type=month     : 旧逻辑，直接从 dwt_flow_asin 读取
                                        (asin_type/category_first_id/first_category_rank 已计算好)
                  date_type=month_week: 新逻辑，从 dim_asin_detail 读取
                                        补充计算（对齐dwt逻辑）：
                                          - first_category_rank  : 来自 dim_asin_bs_info
                                          - category_first_id    : BSR来源优先，dim兜底
                                          - category_id          : BSR来源优先，dim兜底
                                          - asin_bought_month    : dim值 + dwd_asin_measure 兜底
                                          - asin_type            : 参考 dwt.handle_asin_is_hide() 计算
   @CreateTime  : 2026-03-17
"""

import os
import sys

sys.path.append(os.path.dirname(sys.path[0]))

from utils.spark_util import SparkUtil
from utils.db_util import DBUtil
from pyspark.sql import functions as F


# 数字/虚拟类目排除列表 — 筛选条件用
EXCLUDE_CATEGORIES = (
    "audible", "books", "digital-text", "dmusic",
    "mobile-apps", "movies-tv", "music", "software", "videogames"
)

# asin_is_need 判断中需要过滤的类目（对齐 dwt.handle_asin_is_hide）
NEED_FILTER_CATEGORIES = (
    'mobile-apps', 'audible', 'books', 'music', 'dmusic', 'digital-text',
    'magazines', 'movies-tv', 'software', 'videogames',
    'amazon-devices', 'boost', 'us-live-explorations', 'amazon-renewed'
)

# asin_is_hide 中 category_id 级别的隐藏节点
HIDE_CATEGORY_IDS = (
    '21393128011', '21377129011', '21377127011',
    '21377130011', '21388218011', '21377132011'
)


class ExportAsinWithoutKeepa(object):

    def __init__(self, site_name, date_info, date_type):
        self.site_name = site_name
        self.date_info = date_info
        self.date_type = date_type
        self.pg_table  = f"{site_name}_asin_profit_keepa_add"
        self.spark = SparkUtil.get_spark_session(
            f"{self.__class__.__name__}:{site_name}:{date_type}:{date_info}"
        )
        self.df_flow_asin = self.spark.sql("select 1+1;")
        self.df_save      = self.spark.sql("select 1+1;")

    # ------------------------------------------------------------------ #
    #  步骤1：读取数据（按 date_type 分支）                                  #
    # ------------------------------------------------------------------ #
    def read_data(self):
        if self.date_type == 'month':
            self._read_data_month()
        elif self.date_type == 'month_week':
            self._read_data_month_week()
        else:
            raise ValueError(f"不支持的 date_type: {self.date_type}，仅支持 month / month_week")

    def _read_data_month(self):
        """旧逻辑：直接从 dwt_flow_asin 读取，筛选条件在 SQL 中完成"""
        print("1. [month] 从 dwt_flow_asin 读取并筛选")
        exclude_str = ", ".join(f"'{c}'" for c in EXCLUDE_CATEGORIES)
        sql = f"""
            select asin
            from dwt_flow_asin
            where site_name = '{self.site_name}'
              and date_type = '{self.date_type}'
              and date_info = '{self.date_info}'
              and asin_type in (0, 1, 3)
              and asin_price is not null
              and asin_price > 0
              and (asin_bought_month >= 50 or first_category_rank <= 600000)
              and (category_first_id is null
                   or category_first_id not in ({exclude_str}))
        """
        self.df_flow_asin = self.spark.sql(sql).repartition(40, 'asin').cache()
        print(f"dwt_flow_asin 筛选后数据量: {self.df_flow_asin.count()}")

    def _read_data_month_week(self):
        """新逻辑：从 dim_asin_detail 读取，补充计算 asin_type / first_category_rank 等字段"""
        # ① dim_asin_detail 主表
        print("1. [month_week] 读取 dim_asin_detail")
        sql = f"""
            select asin, asin_price, asin_bought_month,
                   asin_is_self, asin_category_desc,
                   category_id       as top_category_id,
                   category_first_id as top_category_first_id
            from dim_asin_detail
            where site_name = '{self.site_name}'
              and date_type = '{self.date_type}'
              and date_info = '{self.date_info}'
        """
        df_dim = self.spark.sql(sql).repartition(40, 'asin').cache()
        print(f"dim_asin_detail 数据量: {df_dim.count()}")

        # ② dim_asin_bs_info → first_category_rank / category_first_id(BSR) / category_id(BSR)
        print("2. 读取 dim_asin_bs_info (BSR分类与排名)")
        sql = f"""
            select asin,
                   asin_bs_cate_1_rank     as first_category_rank,
                   asin_bs_cate_1_id       as bsr_category_first_id,
                   asin_bs_cate_current_id as bsr_category_id
            from dim_asin_bs_info
            where site_name = '{self.site_name}'
              and date_type = '{self.date_type}'
              and date_info = '{self.date_info}'
        """
        df_bsr = self.spark.sql(sql).repartition(40, 'asin')

        # ③ dwd_asin_measure → asin_amazon_orders（asin_bought_month 兜底）
        print("3. 读取 dwd_asin_measure (asin_amazon_orders 兜底)")
        sql = f"""
            select asin, asin_amazon_orders
            from dwd_asin_measure
            where site_name = '{self.site_name}'
              and date_type = '{self.date_type}'
              and date_info = '{self.date_info}'
        """
        df_measure = self.spark.sql(sql).repartition(40, 'asin')

        # ④ dim_bsr_category_tree → desc_category_first_id（用于 asin_is_need 双重校验）
        print("4. 读取 dim_bsr_category_tree (分类名称→ID 映射)")
        sql = f"""
            select lower(trim(en_name)) as desc_category_first_name,
                   category_first_id    as desc_category_first_id
            from dim_bsr_category_tree
            where site_name = '{self.site_name}'
              and category_parent_id = 0
              and leaf_node = 2
        """
        df_bsr_category = F.broadcast(self.spark.sql(sqlQuery=sql))

        # ⑤ us_bs_category_hide → 隐藏分类（用于 asin_type 计算）
        print("5. 读取 us_bs_category_hide (隐藏分类)")
        mysql_con = DBUtil.get_connection_info("mysql", self.site_name)
        sql = "select category_id_base as category_id, 1 as hide_flag from us_bs_category_hide group by category_id_base"
        df_hide = SparkUtil.read_jdbc_query(
            session=self.spark, url=mysql_con['url'],
            pwd=mysql_con['pwd'], username=mysql_con['username'], query=sql
        )

        # ⑥ 组装
        print("6. 组装主DataFrame")
        df = df_dim \
            .join(df_bsr,     on='asin', how='left') \
            .join(df_measure, on='asin', how='left')

        # category_first_id / category_id：BSR优先，dim兜底
        df = df.withColumn(
            "category_first_id",
            F.coalesce(F.col("bsr_category_first_id"), F.col("top_category_first_id"))
        ).withColumn(
            "category_id",
            F.coalesce(F.col("bsr_category_id"), F.col("top_category_id"))
        ).drop("bsr_category_first_id", "bsr_category_id",
               "top_category_first_id", "top_category_id")

        # asin_bought_month：dim值优先，measure兜底
        df = df.withColumn(
            "asin_bought_month",
            F.coalesce(F.col("asin_bought_month"), F.col("asin_amazon_orders"))
        ).drop("asin_amazon_orders")

        # asin_type 计算（对齐 dwt.handle_asin_is_hide）
        # desc_category_first_name：解析 asin_category_desc，取 › 分隔的第一段
        df = df.withColumn(
            "desc_category_first_name",
            F.lower(F.trim(F.split(F.col("asin_category_desc"), "›").getItem(0)))
        ).join(df_bsr_category, on='desc_category_first_name', how='left') \
         .drop("desc_category_first_name", "asin_category_desc")

        df = df.join(F.broadcast(df_hide), on='category_id', how='left')
        need_categories = NEED_FILTER_CATEGORIES
        df = df.withColumn(
            "asin_is_hide",
            F.expr(f"""
                CASE WHEN hide_flag = 1 THEN 1
                     WHEN category_first_id = 'grocery' AND category_id != '6492272011' THEN 1
                     WHEN category_id IN {HIDE_CATEGORY_IDS} THEN 1
                     ELSE 0 END
            """)
        ).withColumn(
            "asin_is_need",
            F.expr(f"""
                CASE WHEN category_first_id IN {need_categories}
                          AND desc_category_first_id IN {need_categories} THEN 1
                     WHEN asin NOT LIKE 'B0%' THEN 1
                     ELSE 0 END
            """)
        ).drop("desc_category_first_id") \
         .withColumn(
            "asin_type",
            F.expr("""
                CASE WHEN asin_is_self = 1 THEN 1
                     WHEN asin_is_need  = 1 THEN 2
                     WHEN asin_is_hide  = 1 THEN 3
                     ELSE 0 END
            """)
        ).drop("hide_flag", "asin_is_self", "asin_is_need", "asin_is_hide")

        self.df_flow_asin = df.repartition(40, 'asin').cache()
        print(f"组装完成，总数据量: {self.df_flow_asin.count()}")

    # ------------------------------------------------------------------ #
    #  步骤2：数据处理 — 筛选（month_week）+ 排除keepa / 已导出ASIN           #
    # ------------------------------------------------------------------ #
    def handle_data(self):
        df = self.df_flow_asin

        # month_week：字段在 Python 中计算，需在此处做条件过滤
        # month：SQL 中已完成过滤，直接跳过此步
        if self.date_type == 'month_week':
            print("7. [month_week] 筛选目标ASIN")
            df = df.filter(
                F.col("asin_type").isin(0, 1, 3)
            ).filter(
                F.col("asin_price").isNotNull() & (F.col("asin_price") > 0)
            ).filter(
                (F.col("asin_bought_month") >= 50) | (F.col("first_category_rank") <= 600000)
            ).filter(
                F.col("category_first_id").isNull() |
                ~F.col("category_first_id").isin(*EXCLUDE_CATEGORIES)
            )
            df = df.cache()
            print(f"筛选后数据量: {df.count()}")

        # 排除 dim_keepa_asin_info 中已有有效keepa数据的ASIN
        # 有效定义：长/宽/高 >= 0，且 package_weight 或 item_weight 任意一个 > 0（与 export_need_profit_rate 取数规则一致）
        print("8. 排除已有keepa数据的ASIN (dim_keepa_asin_info)")
        df_keepa = self.spark.sql(f"""
            select asin from dim_keepa_asin_info
            where site_name = '{self.site_name}'
              and package_length > 0
              and package_width > 0
              and package_height > 0
              and (package_weight > 0 or item_weight > 0)
        """).repartition(40, 'asin')
        df = df.join(df_keepa, on='asin', how='left_anti').cache()
        print(f"排除keepa后数据量: {df.count()}")

        # 排除 {pg_table} 中已导出的ASIN
        print(f"9. 排除已导出的ASIN ({self.pg_table})")
        pg_con_info = DBUtil.get_connection_info("postgresql_cluster", self.site_name)
        df_exported = SparkUtil.read_jdbc_query(
            session=self.spark,
            url=pg_con_info['url'],
            username=pg_con_info['username'],
            pwd=pg_con_info['pwd'],
            query=f"select asin from {self.pg_table}"
        ).repartition(40, 'asin')
        df = df.join(df_exported, on='asin', how='left_anti').cache()
        print(f"排除已导出后数据量: {df.count()}")

        self.df_save = df.select(
            F.col("asin"),
            F.lit(self.date_info).alias("month")
        ).cache()

    # ------------------------------------------------------------------ #
    #  步骤3：写入 PostgreSQL                                              #
    # ------------------------------------------------------------------ #
    def save_data(self):
        total = self.df_save.count()
        print(f"10. 写入 PostgreSQL 表 {self.pg_table}，共 {total} 条")
        con_info = DBUtil.get_connection_info('postgresql_cluster', self.site_name)
        self.df_save.write.format("jdbc") \
            .option("url",      con_info["url"]) \
            .option("dbtable",  self.pg_table) \
            .option("user",     con_info["username"]) \
            .option("password", con_info["pwd"]) \
            .mode("append") \
            .save()
        print(f"写入完毕")

    def run(self):
        self.read_data()
        self.handle_data()
        self.save_data()


if __name__ == "__main__":
    site_name = sys.argv[1]   # 参数1：站点，如 us / uk / de
    date_type = sys.argv[2]   # 参数2：month 或 month_week
    date_info = sys.argv[3]   # 参数3：年-月 / 年-月_周，如 2026-02
    handle_obj = ExportAsinWithoutKeepa(
        site_name=site_name, date_info=date_info, date_type=date_type
    )
    handle_obj.run()
