import grabSQLKeyName from "../../utils/grab-sql-key-name";
import varDatabaseDbHandler from "./varDatabaseDbHandler";

type Param = {
    dbFullName: string;
    tableName: string;
};

/**
 * # Drop All Foreign Keys
 */
export default async function dropAllForeignKeys({
    dbFullName,
    tableName,
}: Param) {
    try {
        // const rows = await varDatabaseDbHandler({
        //     queryString: `SELECT CONSTRAINT_NAME FROM information_schema.REFERENTIAL_CONSTRAINTS WHERE TABLE_NAME = '${tableName}' AND CONSTRAINT_SCHEMA = '${dbFullName}'`,
        // });

        // console.log("rows", rows);
        // console.log("dbFullName", dbFullName);
        // console.log("tableName", tableName);

        // for (const row of rows) {
        //     await varDatabaseDbHandler({
        //         queryString: `ALTER TABLE \`${dbFullName}\`.\`${tableName}\` DROP FOREIGN KEY \`${row.CONSTRAINT_NAME}\`
        //     `,
        //     });
        // }

        const foreignKeys = await varDatabaseDbHandler({
            queryString: `SHOW INDEXES FROM \`${dbFullName}\`.\`${tableName}\` WHERE Key_name LIKE '${grabSQLKeyName(
                { type: "foreign_key" }
            )}%'`,
        });

        for (const fk of foreignKeys) {
            if (
                fk.Key_name.match(
                    new RegExp(grabSQLKeyName({ type: "foreign_key" }))
                )
            ) {
                await varDatabaseDbHandler({
                    queryString: `ALTER TABLE \`${dbFullName}\`.\`${tableName}\` DROP INDEX \`${fk.Key_name}\`
                `,
                });
            }
        }
    } catch (error: any) {
        console.log(`dropAllForeignKeys ERROR => ${error.message}`);
    }
}