import sqlGenGrabConcatStr from "./sql-generator-grab-concat-str";
import { sqlField, sqlIdent } from "./sql-safe";
export default function sqlGenGrabSelectFieldSQL({ selectFields, append_table_names, table_name }) {
    let str = "";
    str += ` ${selectFields
        ?.map((fld) => {
        if (typeof fld != "object") {
            return sqlField(fld);
        }
        const fld_name = sqlField(fld.fieldName);
        const final_fld_name = append_table_names && !fld_name.includes(".")
            ? `${table_name}.${fld_name}`
            : fld_name;
        if (fld.group_concat) {
            return sqlGenGrabConcatStr({
                field: final_fld_name,
                alias: fld.group_concat.alias || fld.alias || fld_name,
                separator: fld.group_concat.separator,
                distinct: fld.group_concat.distinct,
            });
        }
        let fld_str = ``;
        let alias = fld.alias;
        if (fld.count) {
            fld_str += `COUNT(${final_fld_name})`;
            if (!alias && typeof fld.count == "object") {
                alias = fld.count.alias;
            }
        }
        else if (fld.sum) {
            fld_str += `SUM(${final_fld_name})`;
        }
        else if (fld.average) {
            fld_str += `AVG(${final_fld_name})`;
        }
        else if (fld.max) {
            fld_str += `MAX(${final_fld_name})`;
        }
        else if (fld.min) {
            fld_str += `MIN(${final_fld_name})`;
        }
        else if (fld.distinct) {
            fld_str += `DISTINCT ${final_fld_name}`;
        }
        else {
            fld_str += final_fld_name;
        }
        if (alias) {
            fld_str += ` AS ${sqlIdent(alias, "alias")}`;
        }
        return fld_str;
    })
        .join(",")}`;
    return str;
}