from __future__ import annotations

from pathlib import Path
from typing import Any

from .fsutil import sha256_file
from .state import bootstrap_state_path, load_bootstrap_state


BSIPA_PLUGIN_ID = "bsipa"


def latest_log_path(instance_path: Path) -> Path:
    return instance_path / "Logs" / "_latest.log"


def check_bsipa_health(instance_path: Path, state_root: Path, instance: str) -> dict[str, Any]:
    state = load_bootstrap_state(state_root, instance)
    messages: list[str] = []

    required = ["IPA.exe", "winhttp.dll"]
    for rel in required:
        if not (instance_path / rel).is_file():
            messages.append(f"missing {rel}")
    for rel in ("IPA", "Libs"):
        if not (instance_path / rel).is_dir():
            messages.append(f"missing {rel}/")

    log_path = latest_log_path(instance_path)
    if not log_path.is_file():
        messages.append("missing Logs/_latest.log")
    else:
        text = log_path.read_text(encoding="utf-8", errors="replace")
        if "Beat Saber IPA (BSIPA):" not in text and "Beat Saber IPA" not in text:
            messages.append("Logs/_latest.log does not show BSIPA startup")

    if not state:
        messages.append(f"missing bootstrap state: {bootstrap_state_path(state_root, instance)}")

    return {
        "ok": not messages,
        "messages": messages,
        "statePath": str(bootstrap_state_path(state_root, instance)),
        "logPath": str(log_path),
        "logSha256": sha256_file(log_path) if log_path.is_file() else None,
        "bootstrapRecordedAt": state.get("updatedAt"),
    }