import {
  Body,
  Controller,
  Delete,
  Get,
  Path,
  Post,
  Put,
  Query,
  Request,
  Route,
  Security,
  Tags,
} from "tsoa";
import { RequestWithUser } from "../interfaces/user";
import prisma from "../db";
import { Prisma, Status } from "@prisma/client";
import {
  branchRelationPermInclude,
  createPermCheck,
  createPermCondition,
} from "../services/permission";
import HttpError from "../interfaces/http-error";
import HttpStatus from "../interfaces/http-status";
import { notFoundError } from "../utils/error";
import { filterStatus } from "../services/prisma";

type WorkflowPayload = {
  name: string;
  step: {
    name: string;
    type?: string;
    value?: string[];
    responsiblePersonId?: string[];
  }[];
  registeredBranchId?: string;
  status?: Status;
};

const permissionCondCompany = createPermCondition((_) => true);
const permissionCheckCompany = createPermCheck((_) => true);

@Route("api/v1/workflow-template")
@Tags("Workflow")
@Security("keycloak")
export class FlowTemplateController extends Controller {
  @Get()
  async getFlowTemplate(
    @Request() req: RequestWithUser,
    @Query() page: number = 1,
    @Query() pageSize: number = 30,
    @Query() status?: Status,
    @Query() query = "",
  ) {
    const where = {
      OR: [
        { name: { contains: query } },
        {
          step: {
            some: { name: { contains: query } },
          },
        },
      ],
      ...filterStatus(status),
      registeredBranch: {
        OR: permissionCondCompany(req.user),
      },
    } satisfies Prisma.WorkflowTemplateWhereInput;
    const [result, total] = await prisma.$transaction([
      prisma.workflowTemplate.findMany({
        where,
        include: {
          step: {
            include: {
              value: true,
              responsiblePerson: {
                include: { user: true },
              },
            },
          },
        },
        orderBy: [{ statusOrder: "asc" }, { createdAt: "asc" }],
        take: pageSize,
        skip: (page - 1) * pageSize,
      }),
      prisma.workflowTemplate.count({ where }),
    ]);
    return { result, page, pageSize, total };
  }

  @Get("{templateId}")
  async getFlowTemplateById(@Request() _req: RequestWithUser, @Path() templateId: string) {
    return await prisma.workflowTemplate.findFirst({
      include: {
        step: {
          include: {
            value: true,
            responsiblePerson: {
              include: { user: true },
            },
          },
        },
      },
      where: { id: templateId },
      orderBy: { createdAt: "asc" },
    });
  }

  @Post()
  async createFlowTemplate(@Request() req: RequestWithUser, @Body() body: WorkflowPayload) {
    const userAffiliatedBranch = await prisma.branch.findFirst({
      include: branchRelationPermInclude(req.user),
      where: body.registeredBranchId
        ? { id: body.registeredBranchId }
        : {
            user: { some: { userId: req.user.sub } },
          },
    });
    if (!userAffiliatedBranch) {
      throw new HttpError(
        HttpStatus.BAD_REQUEST,
        "You must be affilated with at least one branch or specifiy branch to be registered (System permission required).",
        "reqMinAffilatedBranch",
      );
    }

    await permissionCheckCompany(req.user, userAffiliatedBranch);

    return await prisma.workflowTemplate.create({
      data: {
        ...body,
        registeredBranchId: userAffiliatedBranch.id,
        step: {
          create: body.step.map((v, i) => ({
            type: v.type,
            value: {
              create: v.value?.map((val) => ({
                value: val,
              })),
            },
            name: v.name,
            order: i + 1,
            responsiblePerson: {
              create: v.responsiblePersonId?.map((id) => ({
                userId: id,
              })),
            },
          })),
        },
      },
    });
  }

  @Put("{templateId}")
  async updateFlowTemplate(
    @Request() req: RequestWithUser,
    @Path() templateId: string,
    @Body() body: WorkflowPayload,
  ) {
    const record = await prisma.workflowTemplate.findUnique({
      where: { id: templateId },
      include: {
        registeredBranch: {
          include: branchRelationPermInclude(req.user),
        },
      },
    });

    if (!record) throw notFoundError("Workflow");

    await permissionCheckCompany(req.user, record.registeredBranch);

    return await prisma.workflowTemplate.update({
      where: { id: templateId },
      data: {
        ...body,
        statusOrder: +(body.status === "INACTIVE"),
        step: {
          deleteMany: {},
          create: body.step.map((v, i) => ({
            type: v.type,
            name: v.name,
            order: i + 1,
            value: {
              create: v.value?.map((val) => ({ value: val })),
            },
            responsiblePerson: {
              create: v.responsiblePersonId?.map((id) => ({ userId: id })),
            },
          })),
        },
      },
    });
  }

  @Delete("{templateId}")
  async deleteFlowTemplateById(@Request() req: RequestWithUser, @Path() templateId: string) {
    const record = await prisma.workflowTemplate.findUnique({
      where: { id: templateId },
      include: {
        registeredBranch: {
          include: branchRelationPermInclude(req.user),
        },
      },
    });

    if (!record) throw notFoundError("Workflow");

    await permissionCheckCompany(req.user, record.registeredBranch);

    return await prisma.workflowTemplate.delete({
      where: { id: templateId },
    });
  }
}