hrms-api-org/src/controllers/ApiWebServiceController.ts

import {
  Controller,
  Post,
  Route,
  Security,
  Tags,
  Body,
  Path,
  Request,
  Response,
  Get,
  Query,
} from "tsoa";
import { AppDataSource } from "../database/data-source";
import HttpSuccess from "../interfaces/http-success";
import HttpStatusCode from "../interfaces/http-status";
import HttpError from "../interfaces/http-error";
import { ApiName } from "../entities/ApiName";
import { Profile } from "../entities/Profile";
import { isPermissionRequest } from "../middlewares/authWebService";
import { RequestWithUserWebService } from "../middlewares/user";
import { OrgRevision } from "../entities/OrgRevision";
@Route("api/v2/org/api-service")
@Tags("ApiKey")
@Security("webServiceAuth")
@Response(
  HttpStatusCode.INTERNAL_SERVER_ERROR,
  "เกิดข้อผิดพลาด ไม่สามารถแสดงรายการได้ กรุณาลองใหม่ในภายหลัง",
)
export class ApiWebServiceController extends Controller {
  private apiNameRepository = AppDataSource.getRepository(ApiName);
  private orgRevisionRepository = AppDataSource.getRepository(OrgRevision);
  /**
   * list fields by systems
   * @summary รายการ fields ตาม systems
   */
  @Get("/:system/:code")
  async listAttribute(
    @Request() request: RequestWithUserWebService,
    @Path("system") system: "registry" | "registry_emp" | "registry_temp" | "organization",
    @Path("code") code: string,
    @Query("page") page: number = 1,
    @Query("pageSize") pageSize: number = 100,
  ): Promise<HttpSuccess | HttpError> {

    const apiName = await this.apiNameRepository.findOne({
      where: { code },
      select: ["id", "code", "methodApi", "system", "isActive"],
      relations: ["apiAttributes"],
      order: {
        apiAttributes: {
          ordering: "ASC",
        },
      },
    });

    if (!apiName || apiName.system != system || !apiName.isActive || apiName.methodApi != "GET") {
      throw new HttpError(HttpStatusCode.NOT_FOUND, "ไม่พบ API ที่ระบุ");
    }
    await isPermissionRequest(request, apiName.id);
    const offset = (page - 1) * pageSize;
    const propertyKey = apiName.apiAttributes.map((attr) => `${attr.tbName}.${attr.propertyKey}`);

    let Main:string = ""
    let condition: string = "1=1"
    if (system == "registry") {
      Main = "Profile"
    }
    else if (system == "registry_emp") {
      Main = "ProfileEmployee"
      condition = `ProfileEmployee.employeeClass = "PERM"`
    }
    else if (system == "registry_temp") {
      Main = "ProfileEmployee"
      condition = `ProfileEmployee.employeeClass = "TEMP"`
    }
    else {
      Main = "OrgRoot"
      const revision = await this.orgRevisionRepository.findOne({
      select: ["id"],
      where: { orgRevisionIsCurrent: true, orgRevisionIsDraft: false }
    });
    condition = `OrgRoot.orgRevisionId = "${revision?.id}"`
    }

    const repo = AppDataSource.getRepository(Main);
    const metadata = repo.metadata;
    
    const relationMap: Record<string, string> = {};
    metadata.relations.forEach((rel) => {
      relationMap[rel.inverseEntityMetadata.name] = rel.propertyName;
    });
    
    // ดึงเฉพาะตารางรอง (ถ้าเลือกไว้)
    let propertyOtherKey:any[] = [];
    propertyOtherKey = [
      ...new Set(
        propertyKey
          .map((x) => x.split(".")[0])
          .filter((tb) => tb !== Main)
      )
    ]
    
    const queryBuilder = repo.createQueryBuilder(Main)

    // join กับตารารอง
    if (propertyOtherKey.length > 0) {
      propertyOtherKey.forEach((tb) => {
        const relationName = relationMap[tb];
        if (relationName) {
          queryBuilder.leftJoin(`${Main}.${relationName}`, tb); 
        }
      });
    }
    
    // เพิ่ม Main.id เพราะจะใช้ pk ในการแมบและนับจำนวน
    if (!propertyKey.includes(`${Main}.id`)) {
      propertyKey.push(`${Main}.id`);
    }

    const [items, total] = await queryBuilder
      .select(propertyKey)
      .where(condition)
      // .orderBy(`${Main}.createdAt`, "DESC")
      .skip(offset)
      .take(pageSize)
      .getManyAndCount();

    // ลบ Main.id
    const results = items.map(({ id, ...x }) => x);
    return new HttpSuccess({ items: results, total });
  }
}