"""Cross-chain connection simulation utilities."""
from __future__ import annotations

import hashlib
import json
from dataclasses import dataclass
from datetime import datetime
from pathlib import Path
from typing import Dict, List


@dataclass
class CrossChainSyncResult:
    """Result for a synthetic cross-chain sync execution."""

    timestamp: str
    identity_tag: str
    participating_networks: List[str]
    composite_hash: str
    status: str
    notes: str

    def to_dict(self) -> Dict[str, object]:
        return {
            "timestamp": self.timestamp,
            "identity_tag": self.identity_tag,
            "participating_networks": self.participating_networks,
            "composite_hash": self.composite_hash,
            "status": self.status,
            "notes": self.notes,
        }


class CrossChainSyncScenario:
    """Simulates Coinbase Wallet + Worldcoin + PoP Coin syncing."""

    def __init__(self, output_dir: Path | None = None) -> None:
        self.identity_tag = "ghostkey-316"
        self.output_dir = output_dir or Path("integration/artifacts")
        self.output_dir.mkdir(parents=True, exist_ok=True)

    def run(self) -> CrossChainSyncResult:
        timestamp = datetime.utcnow().isoformat(timespec="seconds") + "Z"
        networks = ["coinbase-wallet", "worldcoin", "pop-coin"]
        payload = json.dumps({
            "timestamp": timestamp,
            "identity_tag": self.identity_tag,
            "networks": networks,
            "handshake_state": "linked",
        }, sort_keys=True)
        composite_hash = hashlib.sha256(payload.encode("utf-8")).hexdigest()
        result = CrossChainSyncResult(
            timestamp=timestamp,
            identity_tag=self.identity_tag,
            participating_networks=networks,
            composite_hash=composite_hash,
            status="SYNCED",
            notes="Synthetic handshake confirms cross-chain data continuity",
        )
        self._write_result(result)
        return result

    def _write_result(self, result: CrossChainSyncResult) -> None:
        output_path = self.output_dir / "cross_chain_sync.json"
        output_path.write_text(json.dumps(result.to_dict(), indent=2), encoding="utf-8")


__all__ = ["CrossChainSyncResult", "CrossChainSyncScenario"]
