-- 预处理：解析 scoresmap + page 分类
-- v4: 新增 top10 vid 分组 + GROUPING SETS + 曝光占比
WITH t_raw AS
(
    SELECT  *
            ,REPLACE(GET_JSON_OBJECT(extend_alg,'$.scoresMap'),"\\","") AS scoresmap
            ,CASE   WHEN page IN ("回流后沉浸页&内页feed","详情后沉浸页","首页feed","详情页") THEN "推荐"
                    WHEN page IN ("回流页","其他") THEN "非推荐"
                    ELSE "其他"
            END AS page_type
    FROM    loghubods.dwd_recsys_alg_sample_all_20250212
    WHERE   dt = '${dt}'
    AND     apptype IN ("0","4")
    AND     abcode IN ("ab0","ab1","ab2","ab3","ab4","ab5","ab6","ab7","ab8","ab9")
    AND     abcode NOT IN ("ab100")
    AND     extend_alg IS NOT NULL
    AND     GET_JSON_OBJECT(extend_alg,'$.scoresMap') IS NOT NULL
)
-- 过滤：只保留推荐页面
,t_filtered AS
(
    SELECT  *
    FROM    t_raw
    WHERE   page_type = "推荐"
)
-- 特征提取与维度映射
,t_base AS
(
    SELECT  dt
            ,apptype
            ,CASE   WHEN apptype IN ("4") AND abcode IN ("ab0","ab1") THEN "实验组-先验地域降权"
                    WHEN apptype IN ("4") AND abcode IN ("ab6","ab7") THEN "实验组-str+校准&ros-统计量"
                    WHEN apptype IN ("4") AND abcode IN ("ab8","ab9") THEN "实验组-str+校准"
                    WHEN apptype IN ("4") AND abcode IN ("ab2","ab3") THEN "对照组"
                    WHEN apptype IN ("4") AND abcode IN ("ab4","ab5") THEN "ab4-5"
                    ELSE "其他"
            END AS abcode
            ,page_type AS page
            ,mid
            ,vid
            ,is_share
            ,share_cnt
            ,is_return_1
            ,is_return_n
            ,is_return_noself
            ,return_1_uv
            ,return_n_uv
            ,return_n_uv_noself
            ,new_exposure_cnt
            ,flowpool
            ,scoresmap
            ,CAST(GET_JSON_OBJECT(scoresmap,'$.fmRov') AS DOUBLE) AS str_pred
            ,1.22 * pow(CAST(GET_JSON_OBJECT(scoresmap,'$.NorXGBScore') AS DOUBLE), 1.15) AS rosn_pred
            ,CAST(GET_JSON_OBJECT(scoresmap,'$.hasReturnRovScore') AS DOUBLE) AS rosn_stat
            ,GET_JSON_OBJECT(v1_feature,'$.title') AS vid_title
    FROM    t_filtered
)
,t_valid AS
(
    SELECT  *
    FROM    t_base
    WHERE   str_pred IS NOT NULL
    AND     rosn_pred IS NOT NULL
)
-- 计算每个 abcode 下曝光量 top5 的 vid
,t_vid_rank AS
(
    SELECT  dt
            ,apptype
            ,abcode
            ,vid
            ,COUNT(1) AS vid_exp_cnt
            ,ROW_NUMBER() OVER (PARTITION BY dt, apptype, abcode ORDER BY COUNT(1) DESC) AS vid_rank
    FROM    t_valid
    GROUP BY dt, apptype, abcode, vid
)
,t_top5_vid AS
(
    SELECT  dt, apptype, abcode, vid, vid_rank
    FROM    t_vid_rank
    WHERE   vid_rank <= 20
)
-- 标记 top5 vid
,t_with_top5 AS
(
    SELECT  a.*
            ,CASE WHEN b.vid IS NOT NULL THEN a.vid ELSE NULL END AS top5_vid
            ,CASE WHEN b.vid IS NOT NULL THEN a.vid_title ELSE NULL END AS top5_vid_title
            ,b.vid_rank AS top5_vid_rank
    FROM    t_valid a
    LEFT JOIN t_top5_vid b
    ON      a.dt = b.dt
    AND     a.apptype = b.apptype
    AND     a.abcode = b.abcode
    AND     a.vid = b.vid
)
-- 先聚合
,t_agg AS
(
    SELECT  dt
            ,COALESCE(apptype, 'sum') AS apptype
            ,COALESCE(abcode, 'sum') AS abcode
            ,COALESCE(CAST(top5_vid AS STRING), 'all') AS vid
            ,CASE WHEN GROUPING(top5_vid) = 1 THEN NULL ELSE MAX(top5_vid_title) END AS vid_title
            ,CASE WHEN GROUPING(top5_vid) = 1 THEN NULL ELSE MAX(top5_vid_rank) END AS vid_rank
            -- COPC
            ,round((SUM(is_return_noself) / COUNT(1)) / NULLIF(SUM(str_pred) / COUNT(1), 0), 4) AS str_copc
            ,round((SUM(return_n_uv_noself) / NULLIF(SUM(is_return_noself), 0)) / NULLIF(SUM(rosn_pred) / COUNT(1), 0), 4) AS rosn_copc
            ,round((SUM(return_n_uv_noself) / NULLIF(SUM(is_return_noself), 0)) / NULLIF(SUM(rosn_stat) / COUNT(1), 0), 4) AS rosn_stat_copc
            ,round((SUM(return_n_uv_noself) / COUNT(1)) / NULLIF(AVG(str_pred * rosn_pred), 0), 4) AS rovn_copc
            ,round((SUM(return_n_uv_noself) / COUNT(1)) / NULLIF(AVG(str_pred * rosn_stat), 0), 4) AS rovn_stat_copc
            -- 模型预测与真实值
            ,round(COALESCE(SUM(is_return_noself) / COUNT(1),0),6) AS str_real
            ,round(COALESCE(SUM(str_pred) / COUNT(1),0),6) AS str_pred
            ,round(COALESCE(SUM(return_n_uv_noself) / NULLIF(SUM(is_return_noself), 0),0),6) AS rosn_real
            ,round(COALESCE(SUM(rosn_pred) / COUNT(1),0),6) AS rosn_pred
            ,round(COALESCE(SUM(rosn_stat) / COUNT(1),0),6) AS rosn_stat
            ,round(SUM(return_n_uv_noself) / COUNT(1), 6) AS rovn_real
            ,round(AVG(str_pred * rosn_pred), 6) AS rovn_pred
            ,round(AVG(str_pred * rosn_stat), 6) AS rovn_stat
            -- 误差
            ,round(AVG(ABS(rosn_pred - return_n_uv_noself)),6) AS rosn_pred_mae
            ,round(AVG(ABS(rosn_stat - return_n_uv_noself)),6) AS rosn_stat_mae
            -- 业务指标
            ,round(COALESCE(COUNT(1) / COUNT(DISTINCT mid),0),2) AS exp_per_dau
            ,round(COALESCE(SUM(is_share) / COUNT(1),0),6) AS str_one
            ,round(COALESCE(SUM(return_n_uv) / SUM(is_share),0),6) AS ros_one
            ,round(COALESCE(SUM(share_cnt) / COUNT(1),0),6) AS str
            ,round(COALESCE(SUM(return_n_uv) / SUM(share_cnt),0),6) AS ros
            ,round(COALESCE(SUM(is_return_1) / COUNT(1),0),6) AS str_plus
            ,round(COALESCE(SUM(return_n_uv) / SUM(is_return_1),0),6) AS ros_minus
            ,round(COALESCE(SUM(return_n_uv) / COUNT(1),0),6) AS rovn
            ,round(COALESCE(SUM(new_exposure_cnt) / COUNT(1),0),6) AS vovh24
            ,COUNT(DISTINCT mid) AS dau
            ,COUNT(1) AS exp
            ,COALESCE(SUM(is_share),0) AS is_share
            ,COALESCE(SUM(share_cnt),0) AS share_cnt
            ,COALESCE(SUM(is_return_1),0) AS is_return_1
            ,COALESCE(SUM(return_n_uv),0) AS return_n_uv
            ,COALESCE(SUM(new_exposure_cnt),0) AS viewh24
            ,COALESCE(SUM(return_n_uv_noself),0) AS return_n_uv_noself
    FROM    t_with_top5
    GROUP BY dt, apptype, abcode, top5_vid
    GROUPING SETS (
        (dt, apptype, abcode),
        (dt, apptype, abcode, top5_vid)
    )
    HAVING  top5_vid IS NOT NULL OR GROUPING(top5_vid) = 1
)
-- 计算曝光占比
SELECT  dt
        ,apptype
        ,abcode
        ,vid
        ,vid_title
        ,vid_rank
        ,round(exp * 1.0 / MAX(CASE WHEN vid = 'all' THEN exp END) OVER (PARTITION BY dt, apptype, abcode), 4) AS exp_pct
        ,str_copc, rosn_copc, rosn_stat_copc, rovn_copc, rovn_stat_copc
        ,str_real, str_pred, rosn_real, rosn_pred, rosn_stat
        ,rovn_real, rovn_pred, rovn_stat
        ,rosn_pred_mae, rosn_stat_mae
        ,exp_per_dau, str_one, ros_one, str, ros, str_plus, ros_minus, rovn, vovh24
        ,dau, exp, is_share, share_cnt, is_return_1, return_n_uv, viewh24, return_n_uv_noself
FROM    t_agg
ORDER BY dt DESC, apptype, abcode, exp DESC
;
