import { CustomerType, Prisma, Status } from "@prisma/client";
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 minio from "../services/minio";
import HttpStatus from "../interfaces/http-status";
import HttpError from "../interfaces/http-error";
import { CustomerBranchCreate, CustomerBranchUpdate } from "./customer-branch-controller";

if (!process.env.MINIO_BUCKET) {
  throw Error("Require MinIO bucket.");
}

const MINIO_BUCKET = process.env.MINIO_BUCKET;

export type CustomerCreate = {
  status?: Status;
  customerType: CustomerType;
  customerName: string;
  customerNameEN: string;
  customerBranch?: Omit<CustomerBranchCreate, "customerId">[];
};

export type CustomerUpdate = {
  status?: "ACTIVE" | "INACTIVE";
  customerType?: CustomerType;
  customerName?: string;
  customerNameEN?: string;
  customerBranch?: (Omit<CustomerBranchUpdate, "customerId"> & { id: string })[];
};

function imageLocation(id: string) {
  return `customer/img-${id}`;
}

@Route("api/customer")
@Tags("Customer")
@Security("keycloak")
export class CustomerController extends Controller {
  @Get()
  async list(
    @Query() query: string = "",
    @Query() page: number = 1,
    @Query() pageSize: number = 30,
  ) {
    const where = {
      OR: [{ customerName: { contains: query } }, { customerNameEN: { contains: query } }],
    } satisfies Prisma.CustomerWhereInput;

    const [result, total] = await prisma.$transaction([
      prisma.customer.findMany({
        orderBy: { createdAt: "asc" },
        where,
        take: pageSize,
        skip: (page - 1) * pageSize,
      }),
      prisma.customer.count({ where }),
    ]);

    return {
      result: await Promise.all(
        result.map(async (v) => ({
          ...v,
          imageUrl: await minio.presignedGetObject(MINIO_BUCKET, imageLocation(v.id), 12 * 60 * 60),
        })),
      ),
      page,
      pageSize,
      total,
    };
  }

  @Get("{customerId}")
  async getById(@Path() customerId: string) {
    const record = await prisma.customer.findFirst({ where: { id: customerId } });
    if (!record)
      throw new HttpError(HttpStatus.NOT_FOUND, "Customer cannot be found.", "data_not_found");
    return Object.assign(record, {
      imageUrl: await minio.presignedGetObject(
        MINIO_BUCKET,
        imageLocation(record.id),
        12 * 60 * 60,
      ),
    });
  }

  @Post()
  async create(@Request() req: RequestWithUser, @Body() body: CustomerCreate) {
    const last = await prisma.customer.findFirst({
      orderBy: { createdAt: "desc" },
      where: { customerType: body.customerType },
    });

    const code = `${body.customerType}${(+(last?.code.slice(-6) || 0) + 1).toString().padStart(6, "0")}`;

    const { customerBranch, ...payload } = body;

    const provinceId = body.customerBranch?.reduce<string[]>((acc, cur) => {
      if (cur.provinceId && !acc.includes(cur.provinceId)) return acc.concat(cur.provinceId);
      return acc;
    }, []);
    const districtId = body.customerBranch?.reduce<string[]>((acc, cur) => {
      if (cur.districtId && !acc.includes(cur.districtId)) return acc.concat(cur.districtId);
      return acc;
    }, []);
    const subDistrictId = body.customerBranch?.reduce<string[]>((acc, cur) => {
      if (cur.subDistrictId && !acc.includes(cur.subDistrictId))
        return acc.concat(cur.subDistrictId);
      return acc;
    }, []);

    const [province, district, subDistrict] = await prisma.$transaction([
      prisma.province.findMany({ where: { id: { in: provinceId } } }),
      prisma.district.findMany({ where: { id: { in: districtId } } }),
      prisma.subDistrict.findMany({ where: { id: { in: subDistrictId } } }),
    ]);

    if (provinceId && province.length !== provinceId?.length) {
      throw new HttpError(
        HttpStatus.BAD_REQUEST,
        "Some province cannot be found.",
        "missing_or_invalid_parameter",
      );
    }
    if (districtId && district.length !== districtId?.length) {
      throw new HttpError(
        HttpStatus.BAD_REQUEST,
        "Some district cannot be found.",
        "missing_or_invalid_parameter",
      );
    }
    if (subDistrictId && subDistrict.length !== subDistrictId?.length) {
      throw new HttpError(
        HttpStatus.BAD_REQUEST,
        "Some sub district cannot be found.",
        "missing_or_invalid_parameter",
      );
    }

    const record = await prisma.customer.create({
      include: {
        branch: {
          include: {
            province: true,
            district: true,
            subDistrict: true,
          },
        },
      },
      data: {
        ...payload,
        code,
        branch: {
          createMany: {
            data:
              customerBranch?.map((v, i) => ({
                ...v,
                branchNo: `${i + 1}`,
                createdBy: req.user.name,
                updateBy: req.user.name,
              })) || [],
          },
        },
        createdBy: req.user.name,
        updateBy: req.user.name,
      },
    });

    this.setStatus(HttpStatus.CREATED);

    return Object.assign(record, {
      imageUrl: await minio.presignedGetObject(
        MINIO_BUCKET,
        imageLocation(record.id),
        12 * 60 * 60,
      ),
      imageUploadUrl: await minio.presignedPutObject(
        MINIO_BUCKET,
        imageLocation(record.id),
        12 * 60 * 60,
      ),
    });
  }

  @Put("{customerId}")
  async editById(
    @Path() customerId: string,
    @Request() req: RequestWithUser,
    @Body() body: CustomerUpdate,
  ) {
    if (!(await prisma.customer.findUnique({ where: { id: customerId } }))) {
      throw new HttpError(HttpStatus.NOT_FOUND, "Customer cannot be found.", "data_not_found");
    }

    const provinceId = body.customerBranch?.reduce<string[]>((acc, cur) => {
      if (cur.provinceId && !acc.includes(cur.provinceId)) return acc.concat(cur.provinceId);
      return acc;
    }, []);
    const districtId = body.customerBranch?.reduce<string[]>((acc, cur) => {
      if (cur.districtId && !acc.includes(cur.districtId)) return acc.concat(cur.districtId);
      return acc;
    }, []);
    const subDistrictId = body.customerBranch?.reduce<string[]>((acc, cur) => {
      if (cur.subDistrictId && !acc.includes(cur.subDistrictId))
        return acc.concat(cur.subDistrictId);
      return acc;
    }, []);

    const [province, district, subDistrict] = await prisma.$transaction([
      prisma.province.findMany({ where: { id: { in: provinceId } } }),
      prisma.district.findMany({ where: { id: { in: districtId } } }),
      prisma.subDistrict.findMany({ where: { id: { in: subDistrictId } } }),
    ]);

    if (provinceId && province.length !== provinceId?.length) {
      throw new HttpError(
        HttpStatus.BAD_REQUEST,
        "Some province cannot be found.",
        "missing_or_invalid_parameter",
      );
    }
    if (districtId && district.length !== districtId?.length) {
      throw new HttpError(
        HttpStatus.BAD_REQUEST,
        "Some district cannot be found.",
        "missing_or_invalid_parameter",
      );
    }
    if (subDistrictId && subDistrict.length !== subDistrictId?.length) {
      throw new HttpError(
        HttpStatus.BAD_REQUEST,
        "Some sub district cannot be found.",
        "missing_or_invalid_parameter",
      );
    }

    const { customerBranch, ...payload } = body;

    const record = await prisma.customer.update({
      where: { id: customerId },
      data: {
        ...payload,
        branch: {
          deleteMany: {
            id: { notIn: customerBranch?.map((v) => v.id) || [] },
          },
          updateMany:
            customerBranch?.map((v) => ({
              where: { id: v.id },
              data: { ...v, updateBy: req.user.name },
            })) || [],
        },
        updateBy: req.user.name,
      },
    });

    return Object.assign(record, {
      imageUrl: await minio.presignedGetObject(
        MINIO_BUCKET,
        imageLocation(record.id),
        12 * 60 * 60,
      ),
      imageUploadUrl: await minio.presignedPutObject(
        MINIO_BUCKET,
        imageLocation(record.id),
        12 * 60 * 60,
      ),
    });
  }

  @Delete("{customerId}")
  async deleteById(@Path() customerId: string) {
    const record = await prisma.customer.findFirst({ where: { id: customerId } });

    if (!record) {
      throw new HttpError(HttpStatus.NOT_FOUND, "Customer cannot be found.", "data_not_found");
    }

    if (record.status !== Status.CREATED) {
      throw new HttpError(HttpStatus.FORBIDDEN, "Customer is in used.", "data_in_used");
    }

    return await prisma.customer.delete({ where: { id: customerId } });
  }
}