"""PROJECT table handler."""

from xer_mcp.parser.table_handlers.base import TableHandler


def convert_date(date_str: str | None) -> str | None:
    """Convert XER date format to ISO8601.

    XER format: "YYYY-MM-DD HH:MM"
    ISO8601 format: "YYYY-MM-DDTHH:MM:SS"
    """
    if not date_str or date_str.strip() == "":
        return None
    # Replace space with T and add seconds
    return date_str.replace(" ", "T") + ":00"


class ProjectHandler(TableHandler):
    """Handler for PROJECT table in XER files."""

    @property
    def table_name(self) -> str:
        return "PROJECT"

    def parse_row(self, fields: list[str], values: list[str]) -> dict | None:
        """Parse a PROJECT row."""
        if len(values) < len(fields):
            # Pad with empty strings if needed
            values = values + [""] * (len(fields) - len(values))

        data = dict(zip(fields, values, strict=False))

        return {
            "proj_id": data.get("proj_id", ""),
            "proj_short_name": data.get("proj_short_name", ""),
            "plan_start_date": convert_date(data.get("plan_start_date")),
            "plan_end_date": convert_date(data.get("plan_end_date")),
            "last_recalc_date": convert_date(data.get("last_recalc_date")),
        }