抽象redis得定制简历

app/services/customize_resume_store.py

@@ -0,0 +1,46 @@
+"""定制简历 Redis 存取模块
+
+提供定制简历的保存（自动回滚备份）、查询、回滚能力。
+各 Service 统一复用，不直接操作 Redis key。
+"""
+
+from app.core.redis import RedisManager
+from app.schemas.skill_gap import CustomizeResume
+
+# Redis 常量
+KEY_PREFIX = "customize:resume:"
+EXPIRE = 12 * 60 * 60  # 12小时
+ROLLBACK_KEY_PREFIX = "customize:resume:rollback:"
+ROLLBACK_EXPIRE = 30 * 60  # 30分钟
+
+
+async def save(user_id: int, cr: CustomizeResume) -> None:
+    """保存定制简历，自动备份旧版本到回滚 key"""
+    key = f"{KEY_PREFIX}{user_id}"
+    rollback_key = f"{ROLLBACK_KEY_PREFIX}{user_id}"
+    # 备份旧数据
+    old_data = await RedisManager.client.get(key)
+    if old_data:
+        await RedisManager.client.set(rollback_key, old_data, ex=ROLLBACK_EXPIRE)
+    # 存新数据
+    await RedisManager.client.set(key, cr.model_dump_json(by_alias=True), ex=EXPIRE)
+
+
+async def get(user_id: int) -> dict | None:
+    """查询定制简历，返回 dict 或 None"""
+    key = f"{KEY_PREFIX}{user_id}"
+    data = await RedisManager.client.get(key)
+    if data:
+        return CustomizeResume.model_validate_json(data).model_dump(by_alias=True)
+    return None
+
+
+async def rollback(user_id: int) -> None:
+    """回滚定制简历到上一版本"""
+    rollback_key = f"{ROLLBACK_KEY_PREFIX}{user_id}"
+    data = await RedisManager.client.get(rollback_key)
+    if not data:
+        raise ValueError("没有可回滚的版本")
+    key = f"{KEY_PREFIX}{user_id}"
+    await RedisManager.client.set(key, data, ex=EXPIRE)
+    await RedisManager.client.delete(rollback_key)