build_onchain_metadata.py

import hashlib

from constats import *


def build_content_dict(map_: dict[str, str | int]) -> Cell:
    if not map_:
        return None
    
    def key_serializer(src: str):
        return int(hashlib.sha256(src.encode()).hexdigest(), 16)
    def value_serializer(src: str | int, dest: Builder):
        if isinstance(src, int):
            src = str(src)
        return dest.store_ref(begin_cell().store_uint(0, 8).store_snake_string(src).end_cell())    
    
    dict_ = HashMap(key_size=256, key_serializer=key_serializer, value_serializer=value_serializer)
    for k, v in map_.items():
        dict_.set(k, v)
    return begin_cell().store_uint(0, 8).store_dict(dict_.serialize()).end_cell()


def get_onchain_metadata():
    return build_content_dict({
        "decimals": TOKEN_DECIMALS,
        "purpose": COMMENT,
        "symbol": TOKEN_NAME,
        "image": IMAGE_URL,
        "uri": f"https://jvault.xyz/locker/lock_content/"  # это менять не надо
    })