"""Minimal DSL primitives for CatOpt Studio MVP.

This module provides lightweight, serializable primitives that sketch the
Domain-Specific Language (DSL) surface described in the plan. It is not a
full implementation, but serves as a stable foundation for tests and demos.
"""
from __future__ import annotations

from dataclasses import dataclass, field
from datetime import datetime
from typing import Any, Dict, List, Optional


@dataclass
class LocalProblem:
    id: str
    domain: str
    assets: Dict[str, Any] = field(default_factory=dict)
    objective: str = ""
    constraints: List[str] = field(default_factory=list)
    solver_hint: Optional[str] = None


@dataclass
class SharedVariables:
    forecasts: Dict[str, Any] = field(default_factory=dict)
    priors: Dict[str, Any] = field(default_factory=dict)
    version: int = 0


@dataclass
class PlanDelta:
    delta: Dict[str, Any] = field(default_factory=dict)
    timestamp: datetime = field(default_factory=datetime.utcnow)
    author: str = "anonymous"
    contract_id: Optional[str] = None
    signature: Optional[str] = None


@dataclass
class PrivacyBudget:
    signal: str = ""
    budget: float = 0.0
    expiry: Optional[datetime] = None


@dataclass
class AuditLog:
    entry: str = ""
    signer: str = "anonymous"
    timestamp: datetime = field(default_factory=datetime.utcnow)
    contract_id: Optional[str] = None
    version: int = 0


@dataclass
class PolicyBlock:
    safety: Dict[str, Any] = field(default_factory=dict)
    exposure_rules: Dict[str, Any] = field(default_factory=dict)


@dataclass
class GraphOfContractsEntry:
    adapter_name: str
    canonical_schema: str