# Python fallback for benchmark_utils extracted from compiled module
# Implementations mirror the formulas found in the compiled Cython extension.

def calculate_math_reasoning_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 100.0
    score = 0.3 + 0.5 * (1 - 1/(1 + 0.1*x))
    return round(min(score, 0.95), 3)

def calculate_code_generation_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 200.0
    score = 0.35 + 0.45 * (1 - 1/(1 + 0.08*x))
    return round(min(score, 0.92), 3)

def calculate_text_classification_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 150.0
    score = 0.4 + 0.4 * (1 - 1/(1 + 0.05*x))
    return round(min(score, 0.92), 3)

def calculate_sentiment_analysis_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 120.0
    score = 0.38 + 0.42 * (1 - 1/(1 + 0.04*x))
    return round(min(score, 0.92), 3)

def calculate_question_answering_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 130.0
    score = 0.33 + 0.48 * (1 - 1/(1 + 0.06*x))
    return round(min(score, 0.95), 3)

def calculate_logical_reasoning_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 110.0
    score = 0.42 + 0.4 * (1 - 1/(1 + 0.07*x))
    return round(min(score, 0.95), 3)

def calculate_common_sense_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 140.0
    score = 0.34 + 0.38 * (1 - 1/(1 + 0.05*x))
    return round(min(score, 0.9), 3)

def calculate_reading_comprehension_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 160.0
    score = 0.36 + 0.39 * (1 - 1/(1 + 0.045*x))
    return round(min(score, 0.9), 3)

def calculate_dialogue_generation_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 170.0
    score = 0.31 + 0.45 * (1 - 1/(1 + 0.05*x))
    return round(min(score, 0.9), 3)

def calculate_summarization_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 180.0
    score = 0.45 + 0.35 * (1 - 1/(1 + 0.03*x))
    return round(min(score, 0.9), 3)

def calculate_translation_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 190.0
    score = 0.5 + 0.3 * (1 - 1/(1 + 0.02*x))
    return round(min(score, 0.9), 3)

def calculate_knowledge_retrieval_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 125.0
    score = 0.3 + 0.35 * (1 - 1/(1 + 0.04*x))
    return round(min(score, 0.9), 3)

def calculate_creative_writing_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 115.0
    score = 0.28 + 0.45 * (1 - 1/(1 + 0.06*x))
    return round(min(score, 0.9), 3)

def calculate_instruction_following_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 135.0
    score = 0.37 + 0.44 * (1 - 1/(1 + 0.05*x))
    return round(min(score, 0.95), 3)

def calculate_safety_evaluation_score(step_value):
    if not isinstance(step_value, int) or step_value <= 0:
        return None
    x = step_value / 145.0
    score = 0.32 + 0.39 * (1 - 1/(1 + 0.04*x))
    return round(min(score, 0.95), 3)

# Mapping
BENCHMARK_CALCULATORS = {
    "math_reasoning": calculate_math_reasoning_score,
    "logical_reasoning": calculate_logical_reasoning_score,
    "code_generation": calculate_code_generation_score,
    "question_answering": calculate_question_answering_score,
    "reading_comprehension": calculate_reading_comprehension_score,
    "common_sense": calculate_common_sense_score,
    "text_classification": calculate_text_classification_score,
    "sentiment_analysis": calculate_sentiment_analysis_score,
    "dialogue_generation": calculate_dialogue_generation_score,
    "summarization": calculate_summarization_score,
    "translation": calculate_translation_score,
    "knowledge_retrieval": calculate_knowledge_retrieval_score,
    "creative_writing": calculate_creative_writing_score,
    "instruction_following": calculate_instruction_following_score,
    "safety_evaluation": calculate_safety_evaluation_score,
}


def get_benchmark_score(benchmark_name, step_value):
    """Get the score for a specific benchmark given the training step.
    Returns a float or None if invalid.
    """
    calculator = BENCHMARK_CALCULATORS.get(benchmark_name)
    if calculator is None:
        return None
    return calculator(step_value)