feat(crawler): 修复歌曲表 title/version 解析逻辑并完善导入流程日志

- 新增脚本 fix_title_version.py，从 hk_music_record.record_name 解析 title/version 字段
- 支持 dry-run 预览差异和 --apply 选项实际更新数据库
- 按平台批量同步和更新 PG crawler_*_songs 表的 title/version
- 修正 runner.py 中无 preparer 或缺失 song_data 时增加警告日志
- 调整 runner.py 中 YINYAN_IMPORT_TABLE 为 yinyan_song_records2 时的软删除逻辑
- 避免因单条录音失败误删整首歌，提高数据导入准确性

@@ -734,15 +734,20 @@ def _prepare_import_payload(
     platform = str(pending['platform'])
     preparer = _PREPARERS.get(platform)
     if not preparer:
+        log.warning("payload=None: no preparer for platform=%s song_id=%s", platform, pending['song_id'])
         return None
     platform_unique_id = pr['platform_unique_key']
     song_key = platform_unique_id if platform == PLATFORM_QQ else int(platform_unique_id)
     song_data = songs_maps.get(platform, {}).get(song_key)
     if not song_data:
+        log.warning("payload=None: song_data missing platform=%s song_key=%s record_id=%s song_id=%s",
+                    platform, song_key, pending['record_id'], pending['song_id'])
         return None
     singer_key = int(song_data['id']) if platform == PLATFORM_QQ else int(platform_unique_id)
     singer_list = singers_maps.get(platform, {}).get(singer_key, [])
-    if not singer_list:
+    if not singer_list and YINYAN_IMPORT_TABLE != 'yinyan_song_records2':
+        log.warning("payload=None: singer_list missing platform=%s singer_key=%s song_id=%s",
+                    platform, singer_key, pending['song_id'])
         return None
     payload = preparer(hk_row, pr, bucket, base_url, song_data, singer_list)
     payload['yinyan_record'] = {
@@ -2071,7 +2076,8 @@ def run(
                             int(pending['failure_code']),
                         )
                 pg_conn.commit()
-                if discarded_pending:
+                # records2 同一首歌有多条录音，单条录音失败不应软删除整首歌
+                if discarded_pending and YINYAN_IMPORT_TABLE != 'yinyan_song_records2':
                     mark_hk_songs_deleted(hk_conn, [int(pending['song_id']) for pending in discarded_pending])
                     hk_conn.commit()
                 imported.extend(payload['result'] for payload in payloads)
@@ -2083,6 +2089,7 @@ def run(
                             int(pending['failure_code']),
                         )
                 pg_conn.commit()
+                if YINYAN_IMPORT_TABLE != 'yinyan_song_records2':
                     mark_hk_songs_deleted(hk_conn, [int(pending['song_id']) for pending in discarded_pending])
                     hk_conn.commit()
             else:

+#!/usr/bin/env python3
+"""修复已导入的 crawler 歌曲表 title/version 字段。
+
+原导入逻辑从 hk_songs.name（歌曲名）解析 title/version，
+现需改为从 hk_music_record.record_name（录音名）解析。
+
+用法:
+    # dry-run 预览差异（不写库）
+    .venv/bin/python fix_title_version.py
+
+    # 实际执行更新
+    .venv/bin/python fix_title_version.py --apply
+"""
+import argparse
+import logging
+
+from etl_to_crawler.config import PLATFORM_QQ, PLATFORM_KUGOU, PLATFORM_NETEASE
+from etl_to_crawler.connections import get_source_conn, get_pg_conn, close_all_pools
+from etl_to_crawler.utils import split_title_version
+
+logging.basicConfig(level=logging.INFO, format='%(asctime)s %(levelname)s %(message)s')
+log = logging.getLogger(__name__)
+
+# ── 平台配置 ──────────────────────────────────────────────────────────────
+# 每个平台的: PG表名, MySQL平台码, PG platform_song_id 对应 hk_music_record 的哪个字段
+PLATFORM_CONFIGS = [
+    {
+        'name': 'QQ',
+        'pg_table': 'crawler_qqmusic_songs',
+        'mysql_platform': PLATFORM_QQ,
+        'match_field': 'platform_mid',  # PG.platform_song_id ↔ mr.platform_mid
+    },
+    {
+        'name': 'Kugou',
+        'pg_table': 'crawler_kugou_songs',
+        'mysql_platform': PLATFORM_KUGOU,
+        'match_field': 'platform_unique_key',  # PG.platform_song_id ↔ mr.platform_unique_key
+    },
+    {
+        'name': 'Netease',
+        'pg_table': 'crawler_netease_songs',
+        'mysql_platform': PLATFORM_NETEASE,
+        'match_field': 'platform_unique_key',  # PG.platform_song_id ↔ mr.platform_unique_key
+    },
+]
+
+BATCH_SIZE = 2000
+
+
+def fetch_record_name_map(mysql_conn, platform: str, match_field: str) -> dict[str, str]:
+    """从 hk_music_record 查询 platform_unique_key/platform_mid → record_name 映射。"""
+    sql = f"""
+        SELECT {match_field} AS match_key, record_name
+        FROM hk_music_record
+        WHERE platform = %s
+          AND deleted = 0
+          AND {match_field} IS NOT NULL
+          AND TRIM({match_field}) != ''
+          AND record_name IS NOT NULL
+          AND TRIM(record_name) != ''
+    """
+    with mysql_conn.cursor() as cur:
+        cur.execute(sql, (platform,))
+        rows = cur.fetchall()
+    mapping = {}
+    for row in rows:
+        key = str(row['match_key']).strip()
+        if key:
+            mapping[key] = row['record_name']
+    log.info("  MySQL %s: 获取 %d 条 record_name 映射", platform, len(mapping))
+    return mapping
+
+
+def fetch_pg_songs(pg_conn, table: str) -> list[dict]:
+    """从 PG 歌曲表查询 id, platform_song_id, title, version。"""
+    sql = f"SELECT id, platform_song_id, title, version FROM {table}"
+    with pg_conn.cursor() as cur:
+        cur.execute(sql)
+        rows = cur.fetchall()
+    # pg8000 返回 tuple，转为 dict
+    return [{'id': str(r[0]), 'platform_song_id': r[1], 'title': r[2], 'version': r[3]} for r in rows]
+
+
+def compute_updates(songs: list[dict], name_map: dict[str, str]) -> list[tuple]:
+    """对比已有 title/version 与 record_name 解析结果，返回需更新的 (new_title, new_version, id) 列表。"""
+    updates = []
+    skipped = 0
+    for song in songs:
+        psid = str(song['platform_song_id']).strip() if song['platform_song_id'] is not None else ''
+        record_name = name_map.get(psid)
+        if not record_name:
+            skipped += 1
+            continue
+        new_title, new_version = split_title_version(record_name)
+        old_title = song.get('title') or ''
+        old_version = song.get('version') or ''
+        if new_title != old_title or new_version != old_version:
+            updates.append((new_title, new_version, str(song['id'])))
+    if skipped:
+        log.info("  %d 条记录在 hk_music_record 中未找到匹配，跳过", skipped)
+    return updates
+
+
+def batch_update(pg_conn, table: str, updates: list[tuple]) -> int:
+    """批量 UPDATE title, version，使用参数化 VALUES 构造单条 UPDATE。"""
+    if not updates:
+        return 0
+    total = 0
+    for i in range(0, len(updates), BATCH_SIZE):
+        chunk = updates[i:i + BATCH_SIZE]
+        placeholders = ", ".join(["(%s, %s, %s::uuid)"] * len(chunk))
+        sql = f"""
+            UPDATE {table} AS t
+            SET title = v.new_title,
+                version = v.new_version,
+                updated_at = NOW()
+            FROM (VALUES {placeholders}) AS v(new_title, new_version, id)
+            WHERE t.id = v.id
+        """
+        params = []
+        for new_title, new_version, song_id in chunk:
+            params.extend([new_title, new_version, song_id])
+        with pg_conn.cursor() as cur:
+            cur.execute(sql, params)
+        pg_conn.commit()
+        total += len(chunk)
+        log.info("  已更新 %d / %d", total, len(updates))
+    return total
+
+
+def main():
+    parser = argparse.ArgumentParser(description='修复 crawler 歌曲表 title/version 字段')
+    parser.add_argument('--apply', action='store_true', help='实际执行更新（默认 dry-run）')
+    args = parser.parse_args()
+
+    mysql_conn = get_source_conn()
+    pg_conn = get_pg_conn()
+
+    total_updated = 0
+    total_diff = 0
+
+    for cfg in PLATFORM_CONFIGS:
+        log.info("=== 处理 %s (%s) ===", cfg['name'], cfg['pg_table'])
+
+        # 1. 从 MySQL 获取 record_name 映射
+        name_map = fetch_record_name_map(mysql_conn, cfg['mysql_platform'], cfg['match_field'])
+
+        # 2. 从 PG 获取现有歌曲
+        songs = fetch_pg_songs(pg_conn, cfg['pg_table'])
+        log.info("  PG %s: %d 条歌曲记录", cfg['name'], len(songs))
+
+        # 3. 计算差异
+        updates = compute_updates(songs, name_map)
+        log.info("  差异记录: %d 条", len(updates))
+        total_diff += len(updates)
+
+        # 4. dry-run 预览前 20 条
+        if updates:
+            log.info("  差异示例（前20条）:")
+            for new_title, new_version, song_id in updates[:20]:
+                # 找到对应的旧值
+                old = next((s for s in songs if str(s['id']) == song_id), None)
+                if old:
+                    log.info("    id=%s  title: '%s' → '%s'  version: '%s' → '%s'",
+                             song_id,
+                             old.get('title', ''), new_title,
+                             old.get('version', ''), new_version)
+
+        # 5. 执行更新
+        if args.apply and updates:
+            updated = batch_update(pg_conn, cfg['pg_table'], updates)
+            total_updated += updated
+            log.info("  %s 更新完成: %d 条", cfg['name'], updated)
+        elif not args.apply:
+            log.info("  [dry-run] 跳过更新，添加 --apply 执行")
+
+    log.info("=== 汇总 ===")
+    log.info("差异总数: %d", total_diff)
+    if args.apply:
+        log.info("已更新总数: %d", total_updated)
+    else:
+        log.info("[dry-run] 未执行更新，添加 --apply 参数以实际执行")
+
+    close_all_pools()
+
+
+if __name__ == '__main__':
+    main()