import { Company } from "../../generated/prisma/client";
import { connectWiseApi } from "../constants";
import { fetchCwCompanyById } from "../modules/cw-utils/fetchCompany";
import { fetchCompanyConfigurations } from "../modules/cw-utils/configurations/fetchCompanyConfigurations";
import { updateCwInternalCompany } from "../modules/cw-utils/updateCompany";
import {
  fetchCompanySites,
  fetchCompanySite,
  serializeCwSite,
} from "../modules/cw-utils/sites/companySites";
import { Company as CWCompany, Contact } from "../types/ConnectWiseTypes";

/**
 * Company Controller
 *
 * This class is for creating a controller that can manage company data,
 * synchronize with external systems, and provide methods for accessing
 * and updating company information within our internal system.
 */
export class CompanyController {
  public readonly id: string;
  public name: string;
  public readonly cw_Identifier: string;
  public readonly cw_CompanyId: number;
  public cw_Data?: {
    company: CWCompany;
    defaultContact: Contact | null;
    allContacts: Contact[];
  };

  constructor(companyData: Company, cwData?: typeof this.cw_Data) {
    this.id = companyData.id;
    this.name = companyData.name;
    this.cw_Identifier = companyData.cw_Identifier;
    this.cw_CompanyId = companyData.cw_CompanyId;
    this.cw_Data = cwData;
  }

  /**
   * Hydrate CW Data
   *
   * Fetches and populates the full ConnectWise company data
   * (company, default contact, all contacts) if not already loaded.
   *
   * @returns {ThisType}
   */
  public async hydrateCwData() {
    if (this.cw_Data) return this;

    const cwCompany = await fetchCwCompanyById(this.cw_CompanyId);
    if (!cwCompany) return this;

    const allContactsData = await connectWiseApi.get(
      `${cwCompany._info.contacts_href}&pageSize=1000`,
    );

    // Derive default contact from allContacts instead of a separate CW call
    const defaultContactId = cwCompany.defaultContact?.id;
    const defaultContactData = defaultContactId
      ? ((allContactsData.data as any[]).find(
          (c: any) => c.id === defaultContactId,
        ) ?? null)
      : null;

    this.cw_Data = {
      company: cwCompany,
      defaultContact: defaultContactData,
      allContacts: allContactsData.data,
    };

    return this;
  }

  /**
   * Refresh Internal Company Data from ConnectWise
   *
   * This method fetches the latest company data from ConnectWise and updates
   * the internal company information accordingly.
   *
   * @returns {ThisType} - Updated Controller
   */
  public async refreshFromCW() {
    const data = await updateCwInternalCompany(this.cw_CompanyId);

    this.name = data?.name || this.name;
    return this;
  }

  /**
   * Fetch ConnectWise Company Data
   *
   * This method retrieves the latest company data directly from ConnectWise
   * using the stored ConnectWise Company ID.
   *
   * @returns {Company}
   */
  public async fetchCwData(): Promise<CWCompany | null> {
    const data = await fetchCwCompanyById(this.cw_CompanyId);
    return data;
  }

  /**
   * Fetch Company Configurations
   *
   * This method retrieves the configurations associated with
   * the company from ConnectWise.
   *
   * @returns {ProcessedConfiguration}
   */
  public async fetchConfigurations() {
    const data = await fetchCompanyConfigurations(this.cw_CompanyId);
    return data;
  }

  /**
   * Fetch Company Sites
   *
   * Retrieves all sites for this company from ConnectWise
   * and returns them as serialized site objects.
   */
  public async fetchSites() {
    const sites = await fetchCompanySites(this.cw_CompanyId);
    return sites.map(serializeCwSite);
  }

  /**
   * Fetch Company Site by ID
   *
   * Retrieves a single site by its ConnectWise site ID
   * and returns a serialized site object.
   *
   * @param cwSiteId - The ConnectWise site ID
   */
  public async fetchSite(cwSiteId: number) {
    const site = await fetchCompanySite(this.cw_CompanyId, cwSiteId);
    return serializeCwSite(site);
  }

  public toJson(opts?: {
    includeAddress: boolean;
    includePrimaryContact: boolean;
    includeAllContacts?: boolean;
  }) {
    return {
      id: this.id,
      name: this.name,
      cw_Identifier: this.cw_Identifier,
      cw_CompanyId: this.cw_CompanyId,
      cw_Data: {
        address: !opts?.includeAddress
          ? undefined
          : {
              line1: this.cw_Data?.company.addressLine1,
              line2: this.cw_Data?.company.addressLine2 ?? null,
              city: this.cw_Data?.company.city,
              state: this.cw_Data?.company.state,
              zip: this.cw_Data?.company.zip,
              country: this.cw_Data?.company.country
                ? this.cw_Data.company.country.name
                : "United States",
            },
        primaryContact: !opts?.includePrimaryContact
          ? undefined
          : this.cw_Data?.defaultContact
            ? {
                firstName: this.cw_Data.defaultContact.firstName,
                lastName: this.cw_Data.defaultContact.lastName,
                cwId: this.cw_Data.defaultContact.id,
                inactive: this.cw_Data.defaultContact.inactiveFlag,
                title: this.cw_Data.defaultContact.title,
                phone: this.cw_Data.defaultContact.defaultPhoneNbr,
                email: (() => {
                  if (!this.cw_Data?.defaultContact?.communicationItems)
                    return null;
                  return (
                    this.cw_Data.defaultContact.communicationItems.find(
                      (v) => v.type.name === "Email",
                    )?.value ?? null
                  );
                })(),
              }
            : null,
        allContacts: !opts?.includeAllContacts
          ? undefined
          : this.cw_Data?.allContacts.map((contact) => ({
              firstName: contact.firstName,
              lastName: contact.lastName,
              cwId: contact.id,
              inactive: contact.inactiveFlag,
              title: contact.title,
              phone: contact.defaultPhoneNbr,
              email: (() => {
                if (!contact.communicationItems) return null;
                return (
                  contact.communicationItems.find(
                    (v) => v.type.name === "Email",
                  )?.value ?? null
                );
              })(),
            })),
      },
    };
  }
}