"""Case-insensitive live model exclusions."""
import re

RULES = (
    ('gguf', r'gguf|\.gguf|ggml'),
    ('openchat', r'openchat'),
    # Full-weight exports override adapter hints anywhere in the identifier.
    ('peft-lora', r'^(?!.*(?:merged|merge|fullft|full-ft)).*(?:\blora\b|adapter_model|adapter-config|peft)'),
    ('gpt2', r'gpt-?2|dialogpt|distilgpt2'),
    ('phi', r'phi[-_. ]?(?:3(?:\.5)?|4)(?:\D|$)'),
    ('nemotron-h', r'nemotron-h'), ('olmo2', r'olmo-?2'),
    ('lfm2', r'lfm2'), ('spark2.5', r'spark2_5|spark-x2\.5'),
    ('breeze', r'breeze'), ('gemma2', r'gemma-?2'),
    ('mistral-v0.1', r'mistral.*v0\.1'), ('tinyllama', r'tinyllama'),
)


def banned_rule(model):
    return next((name for name, pattern in RULES if re.search(pattern, model, re.I)), None)