import csv
import io
from typing import List, Tuple
from redminelib.resources import Issue
from .formatter import get_version, hours_to_human, STATUS_TRANSLATION


def format_csv(
    issue_hours: List[Tuple[Issue, float]],
    fill_time: bool = True,
    dialect: str = "excel"
) -> str:
    """
    Formats the list of issues with spent time into CSV.
    Returns a string containing the CSV content.
    """

    output = io.StringIO()
    writer = csv.writer(output, dialect=dialect)

    # Header
    writer.writerow(["Project", "Version", "Issue ID", "Subject", "Status", "Spent Time"])

    for issue, hours in issue_hours:
        project = str(issue.project)
        version = get_version(issue)
        status_en = str(issue.status)
        status_ru = STATUS_TRANSLATION.get(status_en, status_en)
        time_text = hours_to_human(hours) if fill_time else ""

        writer.writerow([
            project,
            version,
            issue.id,
            issue.subject,
            status_ru,
            time_text
        ])

    return output.getvalue()