import csv
import io
from typing import List
from .types import ReportRow


def format_csv(rows: List[ReportRow]) -> str:
    output = io.StringIO()
    writer = csv.writer(output, dialect="excel")
    writer.writerow(["Project", "Version", "Issue ID", "Subject", "Status", "Spent Time"])

    for r in rows:
        writer.writerow([
            r["project"],
            r["version"],
            r["issue_id"],
            r["subject"],
            r["status_ru"],
            r["time_text"]
        ])

    return output.getvalue()