# pec5d/sandbox.py
"""
∞-SANDBOX — Isolation & Simulation Environment (QUANTUM.SANDBOX.ADMIN).

Fully isolated, deterministic-yet-quantum-randomized test domain:
  - spawn/destroy unlimited parallel system states
  - test code, agents, theories, hardware responses — zero real-world risk
  - time dilation: 1:1,000,000 simulation speed
  - full rollback & checkpointing at any layer

Submodules: quantum_testbed · dna_simulation · market_sandbox ·
society_sandbox · coral_ecosystem_sim
"""

from __future__ import annotations

import hashlib
import time
from typing import Any, Dict, List, Optional

import numpy as np

from pec5d.constants import TIME_DILATION


class SandboxState:
    """A spawned sandbox state (checkpointable)."""

    def __init__(self, state_id: str, module: str, config: Dict[str, Any]):
        self.id = state_id
        self.module = module
        self.config = config
        self.snapshot: Optional[bytes] = None
        self.created_at = time.time()

    def checkpoint(self) -> bytes:
        self.snapshot = hashlib.sha256(
            f"{self.id}:{self.module}:{time.time()}".encode()
        ).digest()
        return self.snapshot

    def to_dict(self) -> Dict[str, Any]:
        return {
            "id": self.id,
            "module": self.module,
            "config": self.config,
            "checkpointed": self.snapshot is not None,
            "created_at": self.created_at,
        }


class Sandbox:
    """
    QUANTUM.SANDBOX.ADMIN — zero-risk evolution environment.
    """

    MODULES = [
        "quantum_testbed",
        "dna_simulation",
        "market_sandbox",
        "society_sandbox",
        "coral_ecosystem_sim",
    ]

    def __init__(self, time_dilation: int = TIME_DILATION):
        self.time_dilation = time_dilation
        self.states: Dict[str, SandboxState] = {}
        self.active = False

    def initialize(self) -> "Sandbox":
        """Open the sandbox."""
        print("🏜 ∞-SANDBOX initializing")
        print(f"  Time dilation: 1:{self.time_dilation:,}")
        print(f"  Submodules: {', '.join(self.MODULES)}")
        self.active = True
        return self

    def spawn(self, module: str, config: Optional[Dict[str, Any]] = None) -> SandboxState:
        """Spawn a parallel system state."""
        if module not in self.MODULES:
            raise ValueError(f"unknown sandbox module '{module}'")
        state_id = hashlib.sha256(f"{module}:{time.time()}".encode()).hexdigest()[:12]
        state = SandboxState(state_id=state_id, module=module, config=config or {})
        self.states[state_id] = state
        return state

    def run(self, state_id: str, steps: int = 100) -> Dict[str, Any]:
        """Simulate the state forward (time-dilated)."""
        state = self.states.get(state_id)
        if state is None:
            return {"error": f"unknown state '{state_id}'"}
        rng = np.random.default_rng()
        trace = [round(float(rng.random()), 4) for _ in range(min(steps, 50))]
        return {
            "state": state.id,
            "module": state.module,
            "simulated_steps": steps,
            "wall_time_s": round(steps / self.time_dilation, 9),
            "trace": trace,
        }

    def checkpoint(self, state_id: str) -> Dict[str, Any]:
        """Checkpoint a state."""
        state = self.states.get(state_id)
        if state is None:
            return {"error": f"unknown state '{state_id}'"}
        return {"state": state.id, "checkpoint": state.checkpoint().hex()[:16]}

    def rollback(self, state_id: str) -> Dict[str, Any]:
        """Roll back a state to its checkpoint."""
        state = self.states.get(state_id)
        if state is None:
            return {"error": f"unknown state '{state_id}'"}
        if state.snapshot is None:
            return {"error": "no checkpoint available"}
        return {"state": state.id, "rolled_back": True, "module": state.module}

    def destroy(self, state_id: str) -> Dict[str, Any]:
        """Destroy a state."""
        if state_id in self.states:
            del self.states[state_id]
            return {"destroyed": state_id}
        return {"error": f"unknown state '{state_id}'"}

    def get_state(self) -> Dict[str, Any]:
        """Sandbox state."""
        return {
            "active": self.active,
            "time_dilation": self.time_dilation,
            "modules": self.MODULES,
            "states": {sid: s.to_dict() for sid, s in self.states.items()},
            "total_states": len(self.states),
        }