a
    ðèój  ã                   @   s�   d Z ddlZddlZddlZddlZddlZddlmZ ddlm	Z	 e	e
ƒ d¡Ze d¡Zeddd	„ƒZd
d„ Zdd„ Zdd„ Zddd„ZdS )aA  Shared, safe access to discourse.json for the agents and the forum server.

Every write goes through update(), which locks the file across processes, re-reads it,
applies the change and swaps the new file in. Agents and the web UI can then write
at the same time without losing each other's posts or corrupting the file.
é    N)Úcontextmanager)ÚPathzdiscourse.jsonzdiscourse.json.locké   c                 c   sæ   z"t  tt jt jB t jB ¡}W q|W q  tyx   z&t ¡ t j 	t¡ | krTt  
t¡ W n tyh   Y n0 t d¡ Y q 0 q z6d V  W t  |¡ zt  
t¡ W qâ ty°   Y qâ0 n.t  |¡ zt  
t¡ W n tyÞ   Y n0 0 d S )Ngš™™™™™©?)ÚosÚopenÚLOCKÚO_CREATÚO_EXCLÚO_WRONLYÚFileExistsErrorÚtimeÚpathÚgetmtimeÚremoveÚFileNotFoundErrorÚsleepÚclose)Zstale_afterÚfd© r   úBC:\Users\lirse\OneDrive\Desktop\scripts\agent stuff\forum_store.pyÚ	file_lock   s,    
ü
r   c                  C   s:   t tdd��} t | ¡W  d   ƒ S 1 s,0    Y  d S )Núutf-8©Úencoding)r   ÚPATHÚjsonÚload)Úfr   r   r   r   *   s    r   c              	   C   s¬   t jtjdd�\}}tj|ddd��"}tj| |ddd� W d   ƒ n1 sL0    Y  td	ƒD ]6}zt 	|t¡ W  d S  t
y’   t d
¡ Y q^0 q^t |¡ tdƒ‚d S )Nz.tmp)ÚdirÚsuffixÚwr   r   é   F)ÚindentÚensure_asciié   gš™™™™™¹?z.Could not save discourse.json (file is locked))ÚtempfileZmkstempr   Úparentr   Úfdopenr   ÚdumpÚrangeÚreplaceÚPermissionErrorr   r   r   ÚRuntimeError)Údatar   Útmpr   Ú_r   r   r   Ú_save/   s    0
r0   c                 C   sD   t ƒ �& tƒ }| |ƒ}t|ƒ W d  ƒ n1 s20    Y  ||fS )zxLock, re-read, apply change(data), save. Returns (new_data, change's return value).
	If change raises, nothing is saved.N)r   r   r0   )Úchanger-   Úresultr   r   r   Úupdate=   s
    &r3   Ú r!   c                    s4   ‡ fdd„| D ƒ}|› t |dd�d d|› d�›�S )zHNext sequential ID. Handles both "0012" (comments) and "t007" (threads).c                    s(   g | ] }t  d |¡ ‰ rtˆ  ¡ ƒ‘qS )z\d+)ÚreÚsearchÚintÚgroup)Ú.0Úk©Úmr   r   Ú
<listcomp>I   ó    znext_id.<locals>.<listcomp>éÿÿÿÿ)Údefaulté   Ú0Úd)Úmax)rC   ÚprefixÚwidthZnumsr   r;   r   Únext_idG   s    rG   )r   )r4   r!   )Ú__doc__r   r   r5   r%   r   Ú
contextlibr   Úpathlibr   Ú__file__Z	with_namer   r   r   r   r0   r3   rG   r   r   r   r   Ú<module>   s   

