def main():
reqs = read_requirements()
prereqs = get_prereqs(reqs)
coreqs = get_coreqs(reqs)
courses = read_courses()
sifted_prereqs = sift_reqs(prereqs)
sifted_coreqs = sift_reqs(coreqs)
grouped_courses = group_courses(courses)
readable_prereqs = replace_course_ids_with_names(sifted_prereqs, grouped_courses)
readable_coreqs = replace_course_ids_with_names(sifted_coreqs, grouped_courses)
courses_with_reqs = match_reqs_to_courses(readable_prereqs, readable_coreqs, courses)
ungrouped_courses_with_reqs = ungroup_courses(courses_with_reqs)
sorted_courses_with_reqs = sorted(ungrouped_courses_with_reqs, key=lambda c: c['course'])
write_pretty(sorted_courses_with_reqs, 'output/requirements.json')
write_minified(sorted_courses_with_reqs, 'output/requirements.min.json')