import { quoteIdentifier } from "./sql-identifier";
import sqlValuePlaceholder from "./sql-value-placeholder";
import grabTableFields from "./grab-table-fields";
/**
 * # SQL Insert Generator
 */
export default function sqlInsertGenerator({ tableName, data, dbFullName, }) {
    const finalDbName = dbFullName ? `${quoteIdentifier(dbFullName)}.` : "";
    try {
        if (Array.isArray(data) && data?.[0]) {
            let insertKeys = [];
            data.forEach((dt) => {
                const kys = Object.keys(dt);
                kys.forEach((ky) => {
                    if (!insertKeys.includes(ky)) {
                        insertKeys.push(ky);
                    }
                });
            });
            const fieldsMap = new Map(grabTableFields(tableName).map((f) => [f.fieldName, f]));
            let queryBatches = [];
            let queryValues = [];
            data.forEach((item) => {
                queryBatches.push(`(${insertKeys
                    .map((ky) => {
                    const { placeholder, value } = sqlValuePlaceholder({
                        value: item[ky],
                        field: fieldsMap.get(ky),
                    });
                    queryValues.push(value);
                    return placeholder;
                })
                    .join(",")})`);
            });
            const insertColumns = insertKeys.map(quoteIdentifier).join(",");
            let query = `INSERT INTO ${finalDbName}${quoteIdentifier(tableName)} (${insertColumns}) VALUES ${queryBatches.join(",")}`;
            return {
                query: query,
                values: queryValues,
            };
        }
        else {
            return undefined;
        }
    }
    catch ( /** @type {any} */error) {
        console.log(`SQL insert gen ERROR: ${error.message}`);
        return undefined;
    }
}