#!/bin/bash
# L2 每个课时首次通关耗时统计
export PGPASSWORD='LdfjdjL83h3h3^$&**YGG*'
PGHOST='bj-postgres-16pob4sg.sql.tencentcdb.com'
PGPORT='28591'
PGUSER='ai_member'
PGDATABASE='vala_bi'
PSQL="psql -h \$PGHOST -p \$PGPORT -U \$PGUSER -d \$PGDATABASE -t -A"

# 获取所有 L2 章节
$PSQL -c "SELECT id FROM bi_level_unit_lesson WHERE course_level='L2' ORDER BY id;" > /tmp/l2_ch_ids.txt

echo "chapter_id|season|unit|lesson|完成人数|平均用时_分钟"
while read cid; do
  # 获取章节信息
  info=$($PSQL -c "SELECT course_season||'|'||course_unit||'|'||course_lesson FROM bi_level_unit_lesson WHERE id=$cid;")
  
  # 统计首次完成: 从8张分表收集
  result=$($PSQL -c "
  WITH fd AS (
    SELECT user_id, chapter_unique_id FROM bi_user_chapter_play_record_0 WHERE play_status=1 AND chapter_id=$cid
    UNION ALL SELECT user_id, chapter_unique_id FROM bi_user_chapter_play_record_1 WHERE play_status=1 AND chapter_id=$cid
    UNION ALL SELECT user_id, chapter_unique_id FROM bi_user_chapter_play_record_2 WHERE play_status=1 AND chapter_id=$cid
    UNION ALL SELECT user_id, chapter_unique_id FROM bi_user_chapter_play_record_3 WHERE play_status=1 AND chapter_id=$cid
    UNION ALL SELECT user_id, chapter_unique_id FROM bi_user_chapter_play_record_4 WHERE play_status=1 AND chapter_id=$cid
    UNION ALL SELECT user_id, chapter_unique_id FROM bi_user_chapter_play_record_5 WHERE play_status=1 AND chapter_id=$cid
    UNION ALL SELECT user_id, chapter_unique_id FROM bi_user_chapter_play_record_6 WHERE play_status=1 AND chapter_id=$cid
    UNION ALL SELECT user_id, chapter_unique_id FROM bi_user_chapter_play_record_7 WHERE play_status=1 AND chapter_id=$cid
  ),
  times AS (
    SELECT fd.chapter_unique_id, COALESCE(SUM(c.interval_time),0) AS total_ms FROM fd
    LEFT JOIN (
      SELECT chapter_unique_id, interval_time FROM bi_user_component_play_record_0
      UNION ALL SELECT chapter_unique_id, interval_time FROM bi_user_component_play_record_1
      UNION ALL SELECT chapter_unique_id, interval_time FROM bi_user_component_play_record_2
      UNION ALL SELECT chapter_unique_id, interval_time FROM bi_user_component_play_record_3
      UNION ALL SELECT chapter_unique_id, interval_time FROM bi_user_component_play_record_4
      UNION ALL SELECT chapter_unique_id, interval_time FROM bi_user_component_play_record_5
      UNION ALL SELECT chapter_unique_id, interval_time FROM bi_user_component_play_record_6
      UNION ALL SELECT chapter_unique_id, interval_time FROM bi_user_component_play_record_7
    ) c ON fd.chapter_unique_id = c.chapter_unique_id
    GROUP BY fd.chapter_unique_id
  )
  SELECT COUNT(*), ROUND(AVG(total_ms)/60000.0, 1) FROM times WHERE total_ms > 0;
  " 2>&1)
  
  echo "$cid|$info|$result"
done < /tmp/l2_ch_ids.txt