from pathlib import Path


def get_enabled_bidding_entries(config):

    bidding_config = config["exchange_bidding"]
    input_root = Path(bidding_config["input_root"])
    json_input_root = Path(bidding_config.get("json_input_root", ""))
    upload_input_root = Path(bidding_config.get("upload_input_root", ""))
    excel_layout = bidding_config.get("excel_layout", {})
    entries = bidding_config.get("entries", [])

    resolved_entries = []
    for entry in entries:
        if not entry.get("enabled", True):
            continue

        resolved_entries.append(
            _resolve_entry_paths(
                **entry,
                input_root=input_root,
                json_input_root=json_input_root,
                upload_input_root=upload_input_root,
                excel_layout=excel_layout
            )
        )

    return resolved_entries


def get_active_bidding_entry(config):

    bidding_config = config["exchange_bidding"]
    active_entry_key = bidding_config.get("active_entry_key")

    for entry in get_enabled_bidding_entries(config):
        if entry["key"] == active_entry_key:
            return entry

    raise KeyError(
        f"Active bidding entry '{active_entry_key}' was not found among enabled entries."
    )


def _resolve_entry_paths(**kwargs):

    entry = dict(kwargs)
    input_root = entry.pop("input_root")
    json_input_root = entry.pop("json_input_root")
    upload_input_root = entry.pop("upload_input_root")
    excel_layout = entry.pop("excel_layout")

    excel_path = (input_root / entry["excel_file"]).resolve()

    json_path = None
    if entry.get("json_file"):
        json_path = (json_input_root / entry["json_file"]).resolve()

    upload_path = None
    upload_file_name = entry.get("upload_file") or entry.get("excel_file")
    if upload_file_name:
        preferred_upload_path = (upload_input_root / upload_file_name).resolve()
        upload_path = preferred_upload_path if preferred_upload_path.exists() else excel_path

    return {
        **entry,
        "excel_path": str(excel_path),
        "json_path": str(json_path) if json_path else None,
        "upload_path": str(upload_path) if upload_path else None,
        "excel_layout": {
            **excel_layout,
            **entry.get("excel_layout", {})
        }
    }