o i1 @sddlZddlmZmZddlmZdedefddZdd ed edeeeffd d Zdefd dZ de edBde efddZ d edefddZ dS)N)datetimetimezone)SequencestatesreturncCs@dd|D}|s dS|D] }t|dds|jSq |djS)z Return the best on-disk path among cache states: 1) Prefer a path that exists with needs_verify == False (already verified). 2) Otherwise, pick the first path that exists. 3) Otherwise return empty string. cSs*g|]}t|ddrtj|jr|qS) file_pathN)getattrospathisfiler).0sr0/mnt/c/Users/fbmor/ComfyUI/app/assets/helpers.py s  z)select_best_live_path.. needs_verifyFr)rr)raliver rrrselect_best_live_paths   r!r escapecCs4||||}|d|dd|d}||fS)zcEscapes %, _ and the escape char in a LIKE prefix. Returns (escaped_prefix, escape_char). %_)replace)r rrrrescape_sql_like_stringsrcCsttjjddS)zENaive UTC timestamp (no tzinfo). We always treat DB datetimes as UTC.N)tzinfo)rnowrutcrrrrr get_utc_now$srtagscCsttdd|p gDS)z} Normalize a list of tags by: - Stripping whitespace and converting to lowercase. - Removing duplicates. css(|]}|pdr|VqdS)rN)striplower)r trrr /s&z!normalize_tags..)listdictfromkeys)rrrrnormalize_tags)sr'cCsl|}|r d|vrtd|dd\}}|dks+t|dks+tdd|Dr/td|d|S)zmValidate and normalize a blake3 hash string. Returns canonical 'blake3:' or raises ValueError. :zhash must be 'blake3:'blake3@css|] }|dvr|VqdS)0123456789abcdefNr)r crrrr#>sz'validate_blake3_hash..)r r! ValueErrorsplitlenany)r algodigestrrrvalidate_blake3_hash2s   r4)r) r rrtypingrstrrtuplerrr$r'r4rrrrs