import init from "../functions/init";
import { sqlIdent, sqlQuoteIdent } from "../utils/sql-safe";
export default async function ({ sql: passed_sql, table, data }) {
    let sql = passed_sql;
    const { dbSchema } = init();
    const table_schema = dbSchema.tables.find((t) => t.tableName == table);
    const now = Date.now();
    if (table_schema?.tableName) {
        const set_sql_arr = Object.keys(Array.isArray(data) ? data[0] : data)
            .filter((field) => field !== "updated_at")
            .map((field) => {
            const column = sqlIdent(field, "column name");
            return `${column} = excluded.${column}`;
        });
        set_sql_arr.push(`updated_at = ${now}`);
        const set_sql = set_sql_arr.join(", ");
        const unique_fields = table_schema.fields.filter((f) => f.unique);
        for (let i = 0; i < unique_fields.length; i++) {
            const field = unique_fields[i];
            if (!field?.fieldName)
                continue;
            sql += ` ON CONFLICT(${sqlQuoteIdent(field.fieldName)}) DO UPDATE SET ${set_sql}`;
        }
        if (table_schema.uniqueConstraints?.[0]) {
            for (let i = 0; i < table_schema.uniqueConstraints.length; i++) {
                const constraint = table_schema.uniqueConstraints[i];
                const columns = constraint?.constraintTableFields
                    ?.map((c) => sqlQuoteIdent(String(c.value)))
                    ?.join(", ");
                if (!columns)
                    continue;
                sql += ` ON CONFLICT(${columns}) DO UPDATE SET ${set_sql}`;
            }
        }
    }
    return sql;
}