o
    ilG                     @   s  U d Z ddlmZ ddlmZ ddlmZ ddlZddlm	Z	 ddl
mZ ddlmZ dd	lmZ dd
lmZ ddlmZ ddlmZ ddlmZ ddlmZ ddlmZ ddlmZ ddlmZ ddlmZ ddlm Z  ddlm!Z! ddlm"Z" ddl#m$Z$ ddl%m&Z' edZ(e(dkrddlm)Z) nddl*m)Z) ej+dddZ,e+dZ-e+dZ.ee/Z0G d d! d!eej1e-e.f Z2G d"d# d#e)Z3g Z4e5e3 e6d$< d%e3d&dfd'd(Z7d%e3d&dfd)d*Z8d-d+d,Z9dS ).z
Feature Flagging and Experimentation (FFE) product module.

This module handles Feature Flag configuration rules from Remote Configuration
and forwards the raw bytes to the native FFE processor.
    )OrderedDict)MutableMapping)versionN)EvaluationContext)ProviderEventDetails)	ErrorCode)FlagResolutionDetails)Reason)Metadata)ProviderStatus)
get_logger)ffe)_get_ffe_config)build_exposure_event)VariationType)resolve_flag)get_exposure_writer)start_exposure_writer)stop_exposure_writer)ServiceStatusError)configzopenfeature-sdkz0.7.0)AbstractProviderTT)	covariantKVc                   @   s|   e Zd ZdZddefddZdedefdd	Zded
eddfddZ	deddfddZ
deje fddZdefddZdS )LRUCachezQLRU cache implementation using OrderedDict that implements the Mapping interface.   maxsizec                 C   s   t  | _|| _d S N)r   _cache_maxsize)selfr    r#   Z/home/ubuntu/.local/lib/python3.10/site-packages/ddtrace/internal/openfeature/_provider.py__init__4   s   
zLRUCache.__init__keyreturnc                 C   s   | j | | j | S )z<Get value from cache, moving it to end (most recently used).)r    move_to_endr"   r&   r#   r#   r$   __getitem__8   s   
zLRUCache.__getitem__valueNc                 C   sF   || j v r| j | || j |< t| j | jkr!| j jdd dS dS )z@Put value in cache, evicting least recently used if at capacity.F)lastN)r    r(   lenr!   popitem)r"   r&   r+   r#   r#   r$   __setitem__=   s   

zLRUCache.__setitem__c                 C   s   | j |= dS )zDelete key from cache.N)r    r)   r#   r#   r$   __delitem__E   s   zLRUCache.__delitem__c                 C   
   t | jS )zIterate over cache keys.)iterr    r"   r#   r#   r$   __iter__I      
zLRUCache.__iter__c                 C   r1   )z Return number of items in cache.)r-   r    r3   r#   r#   r$   __len__M   r5   zLRUCache.__len__)r   )__name__
__module____qualname____doc__intr%   r   r   r*   r/   r0   typingIteratorr4   r6   r#   r#   r#   r$   r   1   s    r   c                       s  e Zd ZdZdejdejf fddZdefddZd	e	dd
fddZ
d,ddZ	
d-deded	eje	 dee fddZ	
d-deded	eje	 dee fddZ	
d-deded	eje	 dee fddZ	
d-deded	eje	 dee fddZ	
d-dedejeef d	eje	 deejeef  fddZd
ejfdedejd	eje	 dedee f
ddZdedeje deje d	eje	 dd
f
d d!Zdefd"d#Z de!fd$d%Z"d,d&d'Z#d,d(d)Z$d,d*d+Z%  Z&S ).DataDogProviderz
    Datadog OpenFeature Provider.

    Implements the OpenFeature provider interface for Datadog's
    Feature Flags and Experimentation (FFE) product.
    argskwargsc                    s\   t  j|i | tdd| _tj| _d| _tdd| _	t
j| _| js(td t|  d S )NDatadog)nameFi   )r   zopenfeature: experimental flagging provider is not enabled, please set DD_EXPERIMENTAL_FLAGGING_PROVIDER_ENABLED=true to enable it)superr%   r
   	_metadatar   	NOT_READY_status_config_receivedr   _exposure_cache
ffe_config&experimental_flagging_provider_enabled_enabledloggerwarning_register_provider)r"   r?   r@   	__class__r#   r$   r%   Z   s   zDataDogProvider.__init__r'   c                 C   s   | j S )zReturns provider metadata.)rD   r3   r#   r#   r$   get_metadatar   s   zDataDogProvider.get_metadataevaluation_contextNc                 C   sl   | j sdS zt  W n ty   tjddd Y nw t }|dur2| js4d| _tj| _	| 
  dS dS dS )u  
        Initialize the provider.

        Called by the OpenFeature SDK when the provider is set.
        Provider Creation → NOT_READY
                                 ↓
                   First Remote Config Payload
                                 ↓
                            READY (emits PROVIDER_READY event)
                                 ↓
                           Shutdown
                                 ↓
                          NOT_READY
        Nz"Exposure writer is already runningTexc_info)rK   r   r   rL   debugr   rG   r   READYrF   _emit_ready_event)r"   rR   r   r#   r#   r$   
initializev   s   
zDataDogProvider.initializec                 C   sX   | j sdS zt  W n ty   tjddd Y nw |   t|  tj| _	d| _
dS )z
        Shutdown the provider.

        Called by the OpenFeature SDK when the provider is being replaced or shutdown.
        Nz#Exposure writer has already stoppedTrS   F)rK   r   r   rL   rU   clear_exposure_cache_unregister_providerr   rE   rF   rG   r3   r#   r#   r$   shutdown   s   

zDataDogProvider.shutdownflag_keydefault_valuec                 C      |  |||tjS r   )_resolve_detailsr   Booleanr"   r\   r]   rR   r#   r#   r$   resolve_boolean_details      z'DataDogProvider.resolve_boolean_detailsc                 C   r^   r   )r_   r   Stringra   r#   r#   r$   resolve_string_details   rc   z&DataDogProvider.resolve_string_detailsc                 C   r^   r   )r_   r   Integerra   r#   r#   r$   resolve_integer_details   rc   z'DataDogProvider.resolve_integer_detailsc                 C   r^   r   )r_   r   Floatra   r#   r#   r$   resolve_float_details   rc   z%DataDogProvider.resolve_float_detailsc                 C   r^   r   )r_   r   Objectra   r#   r#   r$   resolve_object_details   rc   z&DataDogProvider.resolve_object_detailsvariation_typec           
   
   C   sD  | j st|tjddS zut }t||||d}|du r$t|tjddW S |jdurX| |j}|jt	j
jkrK|jrB| j|dd|d t|tjddW S t|tj||jpTddW S | |j}|jrl| j||j|j|d |jswt||ddW S t|j||jdW S  ty }	 zt|tjt
jdt|	 dW  Y d}	~	S d}	~	ww )a*  
        Core resolution logic for all flag types.

        Follows OpenFeature spec:
        - Returns flag value with reason and variant on success
        - Returns default value with DEFAULT reason when flag not found
        - Returns error with error_code and error_message on errors
        N)r+   reasonvariant)r\   contextexpected_typer\   variant_keyallocation_keyrR   zUnknown error)r+   rm   
error_codeerror_messagez)Unexpected error during flag evaluation: )rK   r   r	   DISABLEDr   r   DEFAULTrt   _map_error_code_to_openfeaturer   r   FlagNotFounddo_log_report_exposureERRORru   _map_reason_to_openfeaturerm   rn   rs   r+   	ExceptionGENERALstr)
r"   r\   r]   rR   rl   r   detailsopenfeature_error_coderm   er#   r#   r$   r_      s   	

z DataDogProvider._resolve_detailsrr   rs   c              
   C   s   z@t ||||d}|sW dS ||d d f}||f}| j|d}|r1||kr1td|| W dS t }	|	| || j|< W dS  ty[ }
 ztjd|
dd W Y d}
~
dS d}
~
ww )	at  
        Report a feature flag exposure event to the EVP proxy intake.

        Uses caching to prevent duplicate exposure events for the same
        (flag_key, subject_id, variant_key, allocation_key) combination.

        Note: This method should only be called when exposure logging is enabled.
        Callers must check the do_log flag before invoking this method.

        Args:
            flag_key: The feature flag key
            variant_key: The variant key returned by evaluation
            allocation_key: The allocation key
            evaluation_context: The evaluation context with subject information
        rq   Nsubjectidz,Skipping duplicate exposure event for %s->%sz#Failed to report exposure event: %sTrS   )r   rH   getrL   rU   r   enqueuer~   )r"   r\   rr   rs   rR   exposure_eventr&   r+   cached_valuewriterr   r#   r#   r$   r{   C  s,   
z DataDogProvider._report_exposurec                 C   s   t |trtjtjtjd}||tjS |tjj	krtjS |tjj
kr'tjS |tjjkr0tjS |tjjkr9tjS |tjjkrBtjS |tjjkrKtjS |tjjkrTtjS |tjjkr]tjS tjS )z,Map native ffe.Reason to OpenFeature Reason.)STATICTARGETING_MATCHSPLIT)
isinstancer   r	   r   r   r   r   UNKNOWNr   StaticTargetingMatchSplitDefaultrw   CachedCACHEDDisabledrv   Errorr|   StaleSTALE)r"   native_reason
string_mapr#   r#   r$   r}   t  s.   
z*DataDogProvider._map_reason_to_openfeaturec                 C   s   |t jjkr	tjS |t jjkrtjS |t jjkrtjS |t jjkr$tj	S |t jj
kr-tjS |t jjkr6tjS |t jjkr?tjS tjS )z2Map native ffe.ErrorCode to OpenFeature ErrorCode.)r   r   TypeMismatchTYPE_MISMATCH
ParseErrorPARSE_ERRORry   FLAG_NOT_FOUNDTargetingKeyMissingTARGETING_KEY_MISSINGInvalidContextINVALID_CONTEXTProviderNotReadyPROVIDER_NOT_READYGeneralr   )r"   native_error_coder#   r#   r$   rx     s   z.DataDogProvider._map_error_code_to_openfeaturec                 C   s.   | j sd| _ tj| _td |   dS dS )z
        Called when a Remote Configuration payload is received and processed.

        Emits PROVIDER_READY event on first configuration.
        Tz7First FFE configuration received, provider is now READYN)rG   r   rV   rF   rL   rU   rW   r3   r#   r#   r$   on_configuration_received  s   
z)DataDogProvider.on_configuration_receivedc                 C   s0   t | drtdur| t  dS td dS )z
        Safely emit PROVIDER_READY event.

        Handles SDK version compatibility - emit_provider_ready() only exists in SDK 0.7.0+.
        emit_provider_readyNzDProvider status is READY (event emission not supported in SDK 0.6.0))hasattrr   r   rL   rU   r3   r#   r#   r$   rW     s   z!DataDogProvider._emit_ready_eventc                 C   s   | j   td dS )z
        Clear the exposure event cache.

        This method is useful for testing to ensure fresh exposure events are sent.
        zExposure cache clearedN)rH   clearrL   rU   r3   r#   r#   r$   rY     s   
z$DataDogProvider.clear_exposure_cacher'   Nr   )'r7   r8   r9   r:   r<   Anyr%   r
   rQ   r   rX   r[   r   boolOptionalr   rb   re   r;   rg   floatri   Uniondictlistrk   r   r`   r   r_   r{   r	   r}   r   rx   r   rW   rY   __classcell__r#   r#   rO   r$   r>   R   s    






o
1

r>   _provider_instancesproviderr'   c                 C   s   | t vrt |  dS dS )z9Register a provider instance for configuration callbacks.N)r   appendr   r#   r#   r$   rN        rN   c                 C   s   | t v rt |  dS dS )zUnregister a provider instance.N)r   remover   r#   r#   r$   rZ     r   rZ   c                  C   s   t D ]} |   qdS )z@Notify all registered providers that configuration was received.N)r   r   r   r#   r#   r$   !_notify_providers_config_received  s   
r   r   ):r:   collectionsr   collections.abcr   importlib.metadatar   r<   openfeature.evaluation_contextr   openfeature.eventr   openfeature.exceptionr   openfeature.flag_evaluationr   r	   openfeature.providerr
   r   ddtrace.internal.loggerr   ddtrace.internal.native._nativer   $ddtrace.internal.openfeature._configr   &ddtrace.internal.openfeature._exposurer   $ddtrace.internal.openfeature._nativer   r   #ddtrace.internal.openfeature.writerr   r   r   ddtrace.internal.servicer   %ddtrace.internal.settings.openfeaturer   rI   pkg_versionr   openfeature.provider.providerTypeVarr   r   r   r7   rL   Genericr   r>   r   r   __annotations__rN   rZ   r   r#   r#   r#   r$   <module>   sN    

!  y