o
    ¤ h·  ã                   @   sV   d dl Z d dlZd dlZd dlZd dlmZmZ d dlmZ edƒZ	G dd„ dƒZ
dS )é    N)ÚdatetimeÚ	timedelta)Úsetup_loggerzrecall_sampler/data_writerc                   @   sp   e Zd Zdedefdd„Zdejfdd„Zdejd	ejdejfd
d„Z	dejdefdd„Z
dedefdd„ZdS )Ú
DataWriterÚoutput_configÚcustomer_namec                 C   sb   || _ || _| d¡| _| d¡ d¡| _| dd¡ ¡ | _t 	d¡| _
| j› d| j› d�| _d S )	NÚbucketÚprefixú/Úfile_formatÚcsvÚs3ú
/customer=z/sample_audit_log.csv)r   r   Úgetr   Úrstripr	   Úlowerr   Úboto3ÚclientÚ	s3_clientÚaudit_log_key)Úselfr   r   © r   ú@C:\Users\shubh\Videos\recall\recall_audit_sampler\data_writer.pyÚ__init__   s   zDataWriter.__init__Úreturnc              
   C   s–   z"| j j| j| jd�}t t |d  ¡ ¡¡}t 	|d ¡|d< |W S  | j j
jy6   tjg d¢d� Y S  tyJ } z	tdt|ƒ› �ƒ‚d}~ww )z6Load audit log sample_audit_log.csv from S3 if exists.©ÚBucketÚKeyÚBodyÚ
sampled_on©Úbase_skur   Úsampling_strategy_type)ÚcolumnszFailed to load audit log: N)r   Ú
get_objectr   r   ÚpdÚread_csvÚioÚBytesIOÚreadÚto_datetimeÚ
exceptionsÚ	NoSuchKeyÚ	DataFrameÚ	ExceptionÚRuntimeErrorÚstr)r   ÚresponseZ	audit_logÚer   r   r   Úload_audit_log   s   €ÿzDataWriter.load_audit_logÚcandidates_dfÚaudit_log_dfc                 C   sT   |j r|S t ¡ tdd� }||d |k }t|d  ¡ ƒ}||d  |¡  }|S )z5Exclude base_skus already sampled within last 1 year.im  )Údaysr   r!   )Úemptyr   Únowr   ÚsetÚtolistÚisin)r   r4   r5   Zone_year_agoZrecent_samplesÚsampled_skusZfiltered_dfr   r   r   Úexclude_already_sampled"   s   z"DataWriter.exclude_already_sampledÚ
sampled_dfÚmetadatac                 C   s0  t  ¡ }| d¡}| d¡}| j› d| j› d|› d|› �}|› d| j› �}| jdkrBt ¡ }|j|dd	� | j	j
| j|| ¡ d
� n%| jdkr_t ¡ }	|j|	dd	� | j	j
| j||	 ¡ d
� ntd| j› �ƒ‚|› d�}
tj|dd� d¡}| j	j
| j|
|d
� td| j› d|› �ƒ td| j› d|
› �ƒ dS )zIWrite sampled data and metadata to S3 partitioned by customer/year/month.z%Yz%mr   z/year=z/month=z/sampled_recall_audit.r   F©Úindex©r   r   r   ÚparquetzUnsupported file format: z/metadata.jsoné   )Úindentzutf-8z+[SUCCESS] Sampled data written to S3: s3://r
   z'[SUCCESS] Metadata written to S3: s3://N)r   r8   Ústrftimer	   r   r   r'   ÚStringIOÚto_csvr   Ú
put_objectr   Úgetvaluer(   Ú
to_parquetÚ
ValueErrorÚjsonÚdumpsÚencodeÚprint)r   r>   r?   r8   ÚyearÚmonthZoutput_prefixZ
sample_keyÚ
csv_bufferZparquet_bufferZmetadata_keyZmetadata_bytesr   r   r   Úwrite_samples.   s&   




zDataWriter.write_samplesr<   r"   c           
   
   C   sô   t  ¡  d¡}t |||dœ¡}z!| jj| j| jd�}t 	t
 |d  ¡ ¡¡}tj||gdd�}W n" | jjjy?   |}Y n tyS } z	tdt|ƒ› �ƒ‚d}~ww t
 ¡ }	|j|	d	d
� | jj| j| j|	 ¡ d� td| j› d| j› �ƒ dS )z,Update or create sample_audit_log.csv in S3.z%Y-%m-%dr    r   r   T)Úignore_indexz.Failed to read existing audit log for update: NFr@   rB   z([SUCCESS] Audit log updated at S3: s3://r
   )r   r8   rF   r%   r-   r   r$   r   r   r&   r'   r(   r)   Úconcatr+   r,   r.   r/   r0   rG   rH   rI   rJ   rP   )
r   r<   r"   r8   Znew_entriesr1   Zexisting_audit_logZupdated_audit_logr2   rS   r   r   r   Úupdate_audit_logK   s(   ý€ÿzDataWriter.update_audit_logN)Ú__name__Ú
__module__Ú__qualname__Údictr0   r   r%   r-   r3   r=   rT   ÚlistrW   r   r   r   r   r   
   s    
r   )rM   r'   r   Úpandasr%   r   r   Úlogger_setupr   Úloggerr   r   r   r   r   Ú<module>   s    