ff-admin-server/src/command/settings/template/templateCommandHandler.ts

import { dataSource } from "../../../data-source";
import { template } from "../../../entity/settings/template";
import InternalException from "../../../exceptions/internalException";
import { CreateTemplateCommand, DeleteTemplateCommand, UpdateTemplateCommand } from "./templateCommand";

export default abstract class TemplateCommandHandler {
  /**
   * @description create template
   * @param {CreateTemplateCommand} createTemplate
   * @returns {Promise<number>}
   */
  static async create(createTemplate: CreateTemplateCommand): Promise<number> {
    return await dataSource
      .createQueryBuilder()
      .insert()
      .into(template)
      .values({
        template: createTemplate.template,
        description: createTemplate.description,
      })
      .execute()
      .then((result) => {
        return result.identifiers[0].id;
      })
      .catch((err) => {
        throw new InternalException("Failed creating template", err);
      });
  }

  /**
   * @description update template
   * @param {UpdateTemplateCommand} updateTemplate
   * @returns {Promise<void>}
   */
  static async update(updateTemplate: UpdateTemplateCommand): Promise<void> {
    return await dataSource
      .createQueryBuilder()
      .update(template)
      .set({
        template: updateTemplate.template,
        description: updateTemplate.description,
        design: updateTemplate.design,
        html: updateTemplate.html,
      })
      .where("id = :id", { id: updateTemplate.id })
      .execute()
      .then(() => {})
      .catch((err) => {
        throw new InternalException("Failed updating template", err);
      });
  }

  /**
   * @description delete template
   * @param {DeleteTemplateCommand} deleteTemplate
   * @returns {Promise<void>}
   */
  static async delete(deleteTemplate: DeleteTemplateCommand): Promise<void> {
    return await dataSource
      .createQueryBuilder()
      .delete()
      .from(template)
      .where("id = :id", { id: deleteTemplate.id })
      .execute()
      .then(() => {})
      .catch((err) => {
        throw new InternalException(
          `Failed deleting template${err.code.includes("ER_ROW_IS_REFERENCED") ? " due to referenced data" : ""}`,
          err
        );
      });
  }
}