import { Injectable } from '@nestjs/common';
import { Connection, Request } from 'mssql';
import { MssqlDBService } from 'src/db/db.service';
import { CreateHoldersDTO, GetHolderOrContactDTO } from 'src/oracle/manage-holders/manage-holders.dto';
import * as mssql from 'mssql';

@Injectable()
export class ManageHoldersService {
    constructor(private readonly mssqlDBService: MssqlDBService) { }

    CreateHolders = async (body: CreateHoldersDTO) => {
        const newBody = {
            p_spid: null,
            p_clientlocationid: null,
            p_holderno: null,
            p_holdertype: null,
            p_uscibmemberflag: null,
            p_govagencyflag: null,
            p_holdername: null,
            p_namequalifier: null,
            p_addlname: null,
            p_address1: null,
            p_address2: null,
            p_city: null,
            p_state: null,
            p_zip: null,
            p_country: null,
            p_userid: null,
            p_contactstable: null,
        };

        const reqBody = JSON.parse(JSON.stringify(body));

        function setEmptyStringsToNull(obj) {
            Object.keys(obj).forEach((key) => {
                if (typeof obj[key] === 'object' && obj[key] !== null) {
                    setEmptyStringsToNull(obj[key]);
                } else if (obj[key] === '') {
                    obj[key] = null;
                }
            });
        }

        setEmptyStringsToNull(reqBody);

        const finalBody: CreateHoldersDTO = { ...newBody, ...reqBody };

        let connection: Connection;
        try {
            connection = await this.mssqlDBService.getConnection();
            const request = new Request(connection);
            request.input('p_spid', mssql.Int, finalBody.p_spid);
            request.input('p_clientlocationid', mssql.Int, finalBody.p_clientlocationid);
            request.input('p_holderno', mssql.VarChar(15), finalBody.p_holderno);
            request.input('p_holdertype', mssql.VarChar(3), finalBody.p_holdertype);
            request.input('p_uscibmemberflag', mssql.VarChar(1), finalBody.p_uscibmemberflag);
            request.input('p_govagencyflag', mssql.VarChar(1), finalBody.p_govagencyflag);
            request.input('p_holdername', mssql.VarChar(50), finalBody.p_holdername);
            request.input('p_namequalifier', mssql.VarChar(10), finalBody.p_namequalifier);
            request.input('p_addlname', mssql.VarChar(50), finalBody.p_addlname);
            request.input('p_address1', mssql.VarChar(50), finalBody.p_address1);
            request.input('p_address2', mssql.VarChar(50), finalBody.p_address2);
            request.input('p_city', mssql.VarChar(30), finalBody.p_city);
            request.input('p_state', mssql.VarChar(2), finalBody.p_state);
            request.input('p_zip', mssql.VarChar(10), finalBody.p_zip);
            request.input('p_country', mssql.VarChar(2), finalBody.p_country);
            request.input('p_userid', mssql.VarChar(50), finalBody.p_userid);

            const contactTable = new mssql.Table('carnetsys.ContactsTable');
            contactTable.create = true;
            contactTable.columns.add('FirstName', mssql.VarChar(50));
            contactTable.columns.add('LastName', mssql.VarChar(50));
            contactTable.columns.add('MiddleInitial', mssql.VarChar(3));
            contactTable.columns.add('Title', mssql.VarChar(50));
            contactTable.columns.add('EmailAddress', mssql.VarChar(100));
            contactTable.columns.add('PhoneNo', mssql.VarChar(20));
            contactTable.columns.add('MobileNo', mssql.VarChar(20));
            contactTable.columns.add('FaxNo', mssql.VarChar(20));

            finalBody.p_contactstable && finalBody.p_contactstable.forEach((contact) => {
                contactTable.rows.add(
                    contact.FirstName,
                    contact.LastName,
                    contact.MiddleInitial,
                    contact.Title,
                    contact.EmailAddress,
                    contact.PhoneNo,
                    contact.MobileNo,
                    contact.FaxNo,
                );
            });

            request.input('p_contactstable', contactTable);

            const result = await request.execute('carnetsys.CreateHolderData');
            return { data: result.recordset };
        } catch (error) {
            console.error('Error executing stored procedure:', error);
            return { error: error.message };
        } finally {
            if (connection) {
                connection.close();
            }
        }

    };

    GetHolderRecord = async (body: GetHolderOrContactDTO) => {
        let connection: Connection;
        try {
            connection = await this.mssqlDBService.getConnection();
            const request = new Request(connection);
            request.input('p_spid', mssql.Int, body.p_spid);
            request.input('p_holderid', mssql.Int, body.p_holderid);

            const result = await request.execute('carnetsys.GetHolderMaster');
            return { data: result.recordset };
        } catch (error) {
            console.error('Error executing stored procedure:', error);
            return { error: error.message };
        } finally {
            if (connection) {
                connection.close();
            }
        }
    };
}