from __future__ import annotations

from collections.abc import Iterable
from typing import Any


EXPLICIT_ARCHITECTURE_FAILURE_CATEGORY = "framework_architecture_unsupported"
EXPLICIT_ARCHITECTURE_FAILURE_ACTION = "block_gpu_framework_architecture"
EXPLICIT_ARCHITECTURE_FAILURE_REASON = "explicit_framework_model_unsupported"
DEFAULT_ARCHITECTURE_BLOCK_TTL_DAYS = 30


def architecture_profile(
    model_type: Any,
    architectures: Any,
) -> dict[str, Any] | None:
    """Build a stable, conservative architecture identity for feedback matching."""
    profiles = architecture_profiles(model_type, architectures)
    return profiles[0] if profiles else None


def architecture_profiles(
    model_type: Any,
    architectures: Any,
) -> list[dict[str, Any]]:
    """Return exact architecture identity first, followed by model-type fallback."""
    normalized_architectures = _normalize_architectures(architectures)
    normalized_model_type = _normalize(model_type)
    profiles: list[dict[str, Any]] = []
    if normalized_architectures:
        profiles.append(
            {
                "matchType": "architectures",
                "signature": "architectures:" + ",".join(normalized_architectures),
                "architectures": normalized_architectures,
                "modelType": normalized_model_type or None,
            }
        )
    if normalized_model_type:
        profiles.append(
            {
                "matchType": "model_type",
                "signature": f"model_type:{normalized_model_type}",
                "architectures": [],
                "modelType": normalized_model_type,
            }
        )
    return profiles


def architecture_compatibility_key(
    target_gpu: Any,
    framework: Any,
    task_type: Any,
    signature: Any,
) -> str | None:
    parts = (
        _normalize(target_gpu),
        _normalize(framework),
        _normalize(task_type),
        _normalize(signature),
    )
    if not all(parts):
        return None
    return "|".join(parts)


def _normalize_architectures(value: Any) -> list[str]:
    if isinstance(value, str):
        values: Iterable[Any] = [value]
    elif isinstance(value, (list, tuple, set)):
        values = value
    else:
        values = []
    return sorted({_normalize(item) for item in values if _normalize(item)})


def _normalize(value: Any) -> str:
    return str(value or "").strip().casefold()