import csv
import sys

PATH = '/root/troupe-standup/wizard-work/ledger/wizards.csv'


def main():
    with open(PATH, newline='', encoding='utf-8') as f:
        rows = list(csv.reader(f))

    errors = []
    if not rows:
        errors.append('empty file')
    else:
        if rows[0] != ['Wizard', 'Model', 'Lane', 'Latest check-in', 'Current unit']:
            errors.append('bad header: %r' % rows[0])
        data = rows[1:]
        if len(data) != 10:
            errors.append('expected 10 data rows, got %d' % len(data))
        names = [r[0] for r in data]
        for need in ('Zephyrus Sparkborn', 'Merlin'):
            if need not in names:
                errors.append('%s missing' % need)
        models = [r[1] for r in data]
        if 'StepFun Step 5' not in models:
            errors.append('Merlin model != StepFun Step 5: %r' % models)
    if errors:
        print('FAIL:')
        for e in errors:
            print(' -', e)
        sys.exit(1)
    print('OK: wizards.csv -> header + 10 data rows (10 wizards)')
    sys.exit(0)


if __name__ == '__main__':
    main()