import { Body, Controller, Post, Request, Route, Security, Tags } from "tsoa";
import { AppDataSource } from "../database/data-source";
import { RequestWithUser } from "../middlewares/user";
import HttpError from "../interfaces/http-error";
import HttpStatus from "../interfaces/http-status";
import HttpSuccess from "../interfaces/http-success";
import { Workflow } from "../entities/Workflow";
import { State } from "../entities/State";
import { StateOperator } from "../entities/StateOperator";

@Route("api/v1/org/workflow")
@Tags("AuthRole")
@Security("bearerAuth")
export class WorkflowController extends Controller {
  private workflowRepo = AppDataSource.getRepository(Workflow);
  private stateRepo = AppDataSource.getRepository(State);
  private stateOperatorRepo = AppDataSource.getRepository(StateOperator);

  @Post("check-iscan")
  public async checkIsCan(
    @Request() req: RequestWithUser,
    @Body()
    body: {
      workflowId: string;
      stateId: string;
      operator: string;
      action: string;
    },
  ) {
    const operator = await this.stateOperatorRepo.findOne({
      where: {
        operator: body.operator,
        state: { id: body.stateId, workflow: { id: body.workflowId } },
      },
    });
    if (!operator) throw new HttpError(HttpStatus.NOT_FOUND, "ไม่พบข้อมูล");

    let isCan = false;
    switch (body.action) {
      case "VIEW":
        isCan = operator.canView;
      case "UPDATE":
        isCan = operator.canUpdate;
      case "DELETE":
        isCan = operator.canDelete;
      case "CANCEL":
        isCan = operator.canCancel;
      case "OPERATE":
        isCan = operator.canOperate;
      case "CHANGESTATE":
        isCan = operator.canChangeState;
      case "COMMENT":
        isCan = operator.canComment;
      case "SIGN":
        isCan = operator.canSign;
      default:
        isCan = false;
    }
    if (isCan == false) {
      throw new HttpError(HttpStatus.NOT_FOUND, "ไม่สามารถดำเนินการได้");
    } else {
      return new HttpSuccess();
    }
  }

  @Post("check-workflow")
  public async checkWorkflow(
    @Request() req: RequestWithUser,
    @Body()
    body: {
      sysName: string;
      posLevelName: string;
      posTypeName: string;
    },
  ) {
    const workflow = await this.workflowRepo.findOne({
      where: {
        sysName: body.sysName,
        posLevelName: body.posLevelName,
        posTypeName: body.posTypeName,
      },
      relations: ["states"],
    });
    if (!workflow) throw new HttpError(HttpStatus.NOT_FOUND, "ไม่พบข้อมูล");

    return new HttpSuccess({
      workflowId: workflow.id,
      stateId: workflow.states.sort((a, b) => a.order - b.order)[0].id,
      stateName: workflow.states.sort((a, b) => a.order - b.order)[0].name,
      stateType: workflow.states.sort((a, b) => a.order - b.order)[0].type,
    });
  }

  @Post("state-next")
  public async stateNext(
    @Request() req: RequestWithUser,
    @Body()
    body: {
      stateId: string;
    },
  ) {
    const state = await this.stateRepo.findOne({
      where: {
        id: body.stateId,
      },
    });
    if (!state) throw new HttpError(HttpStatus.NOT_FOUND, "ไม่พบข้อมูล");
    const _state = await this.stateRepo.findOne({
      where: {
        order: state.order + 1,
        workflowId: state.workflowId,
      },
    });

    return new HttpSuccess({
      stateId: _state?.id || null,
      stateName: _state?.name || null,
      stateType: _state?.type || null,
    });
  }

  @Post("state-back")
  public async stateBack(
    @Request() req: RequestWithUser,
    @Body()
    body: {
      stateId: string;
    },
  ) {
    const state = await this.stateRepo.findOne({
      where: {
        id: body.stateId,
      },
    });
    if (!state) throw new HttpError(HttpStatus.NOT_FOUND, "ไม่พบข้อมูล");
    const _state = await this.stateRepo.findOne({
      where: {
        order: state.order - 1,
        workflowId: state.workflowId,
      },
    });

    return new HttpSuccess({
      stateId: _state?.id || null,
      stateName: _state?.name || null,
      stateType: _state?.type || null,
    });
  }
}