"""Blockchain service: retrieve on-chain data from Duniter V2.

Provides functions to query WoT size, Smith sub-WoT size, and
Technical Committee size from the Duniter V2 blockchain.

Currently stubbed with hardcoded values matching GDev test data.
"""

from __future__ import annotations


async def get_wot_size() -> int:
    """Return the current number of WoT members.

    TODO: Implement real RPC call using substrate-interface::

        from substrateinterface import SubstrateInterface
        from app.config import settings

        substrate = SubstrateInterface(url=settings.DUNITER_RPC_URL)

        # Query membership count
        result = substrate.query(
            module="Membership",
            storage_function="MembershipCount",
        )
        return int(result.value)

    Returns
    -------
    int
        Number of WoT members. Currently returns 7224 (GDev snapshot).
    """
    # TODO: Replace with real substrate-interface RPC call
    return 7224


async def get_smith_size() -> int:
    """Return the current number of Smith members (forgerons).

    TODO: Implement real RPC call using substrate-interface::

        from substrateinterface import SubstrateInterface
        from app.config import settings

        substrate = SubstrateInterface(url=settings.DUNITER_RPC_URL)

        # Query Smith membership count
        result = substrate.query(
            module="SmithMembers",
            storage_function="SmithMembershipCount",
        )
        return int(result.value)

    Returns
    -------
    int
        Number of Smith members. Currently returns 20 (GDev snapshot).
    """
    # TODO: Replace with real substrate-interface RPC call
    return 20


async def get_techcomm_size() -> int:
    """Return the current number of Technical Committee members.

    TODO: Implement real RPC call using substrate-interface::

        from substrateinterface import SubstrateInterface
        from app.config import settings

        substrate = SubstrateInterface(url=settings.DUNITER_RPC_URL)

        # Query TechComm member count
        result = substrate.query(
            module="TechnicalCommittee",
            storage_function="Members",
        )
        return len(result.value) if result.value else 0

    Returns
    -------
    int
        Number of TechComm members. Currently returns 5 (GDev snapshot).
    """
    # TODO: Replace with real substrate-interface RPC call
    return 5