Rule-Based Learning
Path Recommender

def recommend_lesson(
    experience: str,
    goal: str,
    knows_python: bool,
    completed_topics: list[str],
) -> tuple[str, str]:
    """Recommend the next lesson and explain the decision."""

    experience = experience.strip().lower()
    goal = goal.strip().lower()
    completed = {topic.strip().lower() for topic in completed_topics}

    if experience == "beginner" and "ai foundations" not in completed:
        return "Ai Foundations", "Start with the basic concepts first."

    if not knows_python:
        return "Python Foundations", "Python is needed for practical projects."

    if goal == "machine learning" and "data preparation" not in completed:
        return "Data Preparation", "Machine Learning requires clean data."

    if goal == "machine learning":
        return "Supervised Learning Basics", "You are ready for ML basics."

    if goal == "generative ai":
        return "Prompt Engineering", "Start with structured model interaction."

    if goal == "computer vision":
        return "Image Classification Basics", "Start with a core vision task."

    return "Ai Applications Overview", "Explore the main application areas."

from rules import recommend_lesson

experience = input("Experience level: ")
goal = input("Learning goal: ")
knows_python = get_yes_no("Do you know basic Python? Yes/No: ")
completed_text = input("Completed topics, separated by commas: ")
completed_topics = [topic.strip() for topic in completed_text.split(",") if topic.strip()]

lesson, reason = recommend_lesson(
    experience, goal, knows_python, completed_topics
)

print("\nRecommended next lesson:", lesson)
print("Reason:", reason)

from rules import recommend_lesson

lesson, _ = recommend_lesson(
    experience="Beginner",
    goal="Machine Learning",
    knows_python=False,
    completed_topics=["Ai Foundations"],
)
assert lesson == "Python Foundations"

lesson, _ = recommend_lesson(
    experience="Beginner",
    goal="Machine Learning",
    knows_python=True,
    completed_topics=["Ai Foundations", "Data Preparation"],
)
assert lesson == "Supervised Learning Basics"

print("All tests passed.")