import { DSQL_DatabaseSchemaType, DSQL_TableSchemaType } from "../../../types";
import grabTriggerName, { TriggerParadigms } from "./grab-trigger-name";

const TriggerTypes = [
    {
        name: "after_insert",
        value: "INSERT",
    },
    {
        name: "after_update",
        value: "UPDATE",
    },
    {
        name: "after_delete",
        value: "DELETE",
    },
] as const;

export type TriggerSQLGenParams = {
    type: (typeof TriggerTypes)[number];
    srcDbSchema: DSQL_DatabaseSchemaType;
    srcTableSchema: DSQL_TableSchemaType;
    content: string;
    userId?: string | number;
    paradigm: (typeof TriggerParadigms)[number];
};

export default function triggerSQLGen({
    type,
    srcDbSchema,
    srcTableSchema,
    content,
    userId,
    paradigm,
}: TriggerSQLGenParams) {
    let sql = `CREATE TRIGGER`;

    let triggerName = grabTriggerName({
        paradigm,
        dbId: srcDbSchema.id,
        tableName: srcTableSchema.tableName,
        userId,
    });

    sql += ` ${triggerName}`;
    sql += ` AFTER ${type.value} ON ${srcTableSchema.tableName}`;
    sql += ` FOR EACH ROW BEGIN`;

    sql += ` ${content}`;
    sql += ` END`;

    return sql;
}