def navigation_bar()

in tools/split.py [0:0]

• 13 lines of code
• 5 McCabe index (conditional complexity)

def navigation_bar(f: TextIO, challenges: list[str], idx: int, home_file: str):
    prv = get_file_name(challenges[idx - 1]) if idx > 0 else None
    nxt = get_file_name(challenges[idx + 1]) if idx < (len(challenges) - 1) else None
    oct_start = """<span class="navigation">{% octicon """
    oct_end = " height:24 %}</span>"
    dot = """<span class="navigation">{% octicon dot-fill %}</span>"""
    write(f, "\n")
    if prv:
        write(f, f"[{oct_start}chevron-left{oct_end}Previous Challenge]({prv}) {dot} ")
    write(f, f"**[{oct_start}home{oct_end}]({home_file})**")
    if nxt:
        write(f, f" {dot} [Next Challenge {oct_start}chevron-right{oct_end}]({nxt})")
    write(f, "\n")