"""Stub tx_graph_analyzer - transaction graph analysis"""

from typing import Any


class TransactionGraph:
    """Graph representation of transaction flows."""

    def __init__(self):
        self.nodes: dict[str, Any] = {}
        self.edges: list[dict[str, Any]] = []

    def add_transaction(self, tx_hash: str, from_addr: str, to_addr: str) -> None:
        """Add a transaction to the graph."""
        self.edges.append(
            {
                "tx_hash": tx_hash,
                "from": from_addr,
                "to": to_addr,
            }
        )

    def analyze_flows(self, address: str, depth: int = 3) -> dict[str, Any]:
        """Analyze flows for an address."""
        return {
            "address": address,
            "depth": depth,
            "inflows": [],
            "outflows": [],
        }


def build_graph_from_transactions(transactions: list[dict[str, Any]]) -> TransactionGraph:
    """Build a graph from transaction list."""
    graph = TransactionGraph()
    for tx in transactions:
        graph.add_transaction(
            tx.get("hash", ""),
            tx.get("from", ""),
            tx.get("to", ""),
        )
    return graph
