#!/usr/bin/env python3
"""
T=SQL Engine: Maps Temporal Vacuum Fluctuations to 
Structured Quantum State Queries.
"""

import hashlib
import struct
from dataclasses import dataclass
from typing import List, Optional

@dataclass
class WormEvent:
    t_coord: int
    sql_idx: int
    entropy_seed: bytes
    p3q_state: str
    settlement_id: int

class TSQLEngine:
    """
    T=SQL Engine: Maps Temporal Vacuum Fluctuations to 
    Structured Quantum State Queries.
    """
    def __init__(self):
        self.worm_chain = {}
        self.salt = b"DEADBEEF_VACUUM_SALT"

    def _compute_t_sql_index(self, t_coord: int) -> int:
        """
        The T=SQL Mapping: T -> SQL
        Deterministic hash of the temporal coordinate.
        """
        t_bytes = struct.pack(">Q", t_coord)
        hash_obj = hashlib.sha256(t_bytes + self.salt)
        return struct.unpack(">I", hash_obj.digest()[:4])[0]

    def ingest_event(self, t_coord: int, seed: bytes, state: str, settlement: int):
        """
        Writes a vacuum fluctuation event into the Worm Chain.
        """
        idx = self._compute_t_sql_index(t_coord)
        event = WormEvent(t_coord, idx, seed, state, settlement)
        self.worm_chain[idx] = event
        print(f"[T=SQL] Ingested Event: T={t_coord} -> SQL_IDX={idx}")

    def query_by_time(self, t_coord: int) -> Optional[WormEvent]:
        """
        T=SQL SELECT: Retrieves state based on temporal coordinate.
        """
        idx = self._compute_t_sql_index(t_coord)
        return self.worm_chain.get(idx)

    def query_manifold(self, sql_idx_range: tuple) -> List[WormEvent]:
        """
        T=SQL RANGE: Retrieves events within a specific index manifold.
        """
        return [e for idx, e in self.worm_chain.items() 
                if sql_idx_range[0] <= idx <= sql_idx_range[1]]

# ──────────────────────────────────────────────────────────────────────────
# Execution Trace: Vacuum Fluctuation -> T=SQL -> P3Q State
# ──────────────────────────────────────────────────────────────────────────

if __name__ == "__main__":
    engine = TSQLEngine()

    # Simulated Vacuum Events (T, Seed, State, Settlement)
    events = [
        (1692834001, b"\xaa"*32, "S_0", 1001),
        (1692834005, b"\xbb"*32, "S_1", 1002),
        (1692834010, b"\xcc"*32, "S_2", 1003),
    ]

    for e in events:
        engine.ingest_event(*e)

    # T=SQL Query: Find state for a specific vacuum fluctuation time
    target_t = 1692834005
    result = engine.query_by_time(target_t)
    if result:
        print(f"\n[T=SQL Query] Found State: {result.p3q_state} at Index {result.sql_idx}")