#!/usr/bin/env python3
"""Validate MVP network relevancy rules."""

from pathlib import Path
import sys

ROOT = Path(__file__).resolve().parents[1]


def read(relative_path: str) -> str:
    path = ROOT / relative_path
    if not path.exists():
        raise AssertionError(f"Missing required file: {relative_path}")
    return path.read_text(encoding="utf-8")


def require(content: str, needle: str, context: str) -> None:
    if needle not in content:
        raise AssertionError(f"Missing {needle!r} in {context}")


def main() -> int:
    errors: list[str] = []
    checks = {
        "Source/AgrarianGame/AgrarianItemPickup.cpp": ["NetCullDistanceSquared = FMath::Square(3000.0f);"],
        "Source/AgrarianGame/AgrarianResourceNode.cpp": ["NetCullDistanceSquared = FMath::Square(4500.0f);"],
        "Source/AgrarianGame/AgrarianCampfire.cpp": ["NetCullDistanceSquared = FMath::Square(6000.0f);"],
        "Source/AgrarianGame/AgrarianShelterActor.cpp": ["NetCullDistanceSquared = FMath::Square(6000.0f);"],
        "Source/AgrarianGame/AgrarianWildlifeBase.cpp": ["NetCullDistanceSquared = FMath::Square(6000.0f);"],
        "Source/AgrarianGame/AgrarianWaterSource.cpp": ["NetCullDistanceSquared = FMath::Square(6500.0f);"],
        "Source/AgrarianGame/AgrarianWeatherExposureZone.cpp": ["NetCullDistanceSquared = FMath::Square(6500.0f);"],
        "Source/AgrarianGame/AgrarianWildlifeSpawnManager.cpp": ["NetCullDistanceSquared = FMath::Square(8000.0f);"],
        "Docs/MultiplayerNetworkingDesign.md": [
            "MVP actor cull distances",
            "item pickups: 30 meters",
            "resource nodes: 45 meters",
            "campfires, shelters, and wildlife: 60 meters",
            "water sources and weather exposure zones: 65 meters",
            "wildlife spawn managers: 80 meters",
        ],
        "AGRARIAN_DEVELOPMENT_ROADMAP.md": [
            "[x] Add network relevancy rules.",
            "explicit MVP net cull distances",
        ],
    }

    for relative_path, needles in checks.items():
        try:
            content = read(relative_path)
            for needle in needles:
                require(content, needle, relative_path)
        except AssertionError as exc:
            errors.append(str(exc))

    if errors:
        for error in errors:
            print(f"ERROR: {error}", file=sys.stderr)
        return 1

    print("PASS: MVP network relevancy rules are wired and documented.")
    return 0


if __name__ == "__main__":
    raise SystemExit(main())
