import sqlGenGrabConcatStr from "./sql-generator-grab-concat-str";
import { columnRef, quoteIdentifier } from "./sql-identifier";
export default function sqlGenGrabSelectFieldSQL({ selectFields, append_table_names, table_name }) {
    const table = append_table_names ? table_name : undefined;
    return ` ${selectFields
        .map((fld) => {
        if (typeof fld != "object") {
            return columnRef(String(fld), table);
        }
        const fld_name = columnRef(String(fld.fieldName), table);
        let fld_str = ``;
        if (fld.count) {
            fld_str = `COUNT(${fld_name})`;
        }
        else if (fld.sum) {
            fld_str = `SUM(${fld_name})`;
        }
        else if (fld.average) {
            fld_str = `AVG(${fld_name})`;
        }
        else if (fld.max) {
            fld_str = `MAX(${fld_name})`;
        }
        else if (fld.min) {
            fld_str = `MIN(${fld_name})`;
        }
        else if (fld.distinct) {
            fld_str = `DISTINCT ${fld_name}`;
        }
        else if (fld.group_concat) {
            // Carries its own alias
            return sqlGenGrabConcatStr({
                field: fld_name,
                alias: fld.group_concat.alias,
                separator: fld.group_concat.separator,
                distinct: fld.group_concat.distinct,
            });
        }
        else {
            fld_str = fld_name;
        }
        if (fld.alias) {
            fld_str += ` AS ${quoteIdentifier(fld.alias)}`;
        }
        return fld_str;
    })
        .join(",")}`;
}