"""State model for the UI-agnostic installer core."""

from __future__ import annotations

from dataclasses import dataclass, field
from typing import Any


@dataclass
class InstallerState:
    current_id: str | None = None
    data: dict[str, Any] = field(default_factory=dict)
    inputs: dict[str, Any] = field(default_factory=dict)
    config_data: dict[str, Any] = field(default_factory=dict)
    errors: list[str] = field(default_factory=list)
    progress: dict[str, float] = field(default_factory=dict)
    history: list[str] = field(default_factory=list)
    completed: set[str] = field(default_factory=set)

    # Execution engine / controller
    controller: Any = None

    def mark_completed(self, milestone_id: str) -> None:
        self.completed.add(milestone_id)