/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, you can obtain one at http://mozilla.org/MPL/2.0/. */

// MailServices
import { MailServices } from "resource:///modules/MailServices.sys.mjs";

// Local Mail Folders. Requires prior setup of profile directory

export var localAccountUtils = {
  inboxFolder: undefined,
  incomingServer: undefined,
  rootFolder: undefined,
  msgAccount: undefined,

  _localAccountInitialized: false,
  _mailboxStoreContractID: undefined,

  pluggableStores: [
    "@mozilla.org/msgstore/berkeleystore;1",
    "@mozilla.org/msgstore/maildirstore;1",
  ],

  clearAll() {
    this._localAccountInitialized = false;
    if (this.msgAccount) {
      MailServices.accounts.removeAccount(this.msgAccount);
    }
    this.incomingServer = undefined;
    this.msgAccount = undefined;
    this.inboxFolder = undefined;
    this.rootFolder = undefined;
  },

  loadLocalMailAccount(storeID) {
    if (
      (storeID && storeID == this._mailboxStoreContractID) ||
      (!storeID && this._localAccountInitialized)
    ) {
      return;
    }

    this.clearAll();
    if (storeID) {
      Services.prefs.setCharPref("mail.serverDefaultStoreContractID", storeID);
    }

    this._mailboxStoreContractID = storeID;

    this.msgAccount = MailServices.accounts.createLocalMailAccount();
    this.incomingServer = this.msgAccount.incomingServer;

    this.rootFolder = this.incomingServer.rootMsgFolder.QueryInterface(
      Ci.nsIMsgLocalMailFolder
    );

    // Note: Inbox is not created automatically when there is no deferred server,
    // so we need to create it.
    this.inboxFolder = this.rootFolder
      .createLocalSubfolder("Inbox")
      .QueryInterface(Ci.nsIMsgLocalMailFolder);
    // a local inbox should have a Mail flag!
    this.inboxFolder.setFlag(Ci.nsMsgFolderFlags.Mail);

    // Force an initialization of the Inbox folder database.
    this.inboxFolder.name;

    this._localAccountInitialized = true;
  },

  /**
   * Create an nsIMsgIncomingServer and an nsIMsgAccount to go with it.
   *
   * @param {string} aType - The type of the server (pop3, imap etc).
   * @param {integer} aPort - The port the server is on.
   * @param {string} aUsername - The username for the server.
   * @param {string} aPassword - The password for the server.
   * @param {string} aHostname - The hostname for the server (defaults to localhost).
   * @returns {nsIMsgIncomingServer} The newly-created nsIMsgIncomingServer.
   */
  create_incoming_server(
    aType,
    aPort,
    aUsername,
    aPassword,
    aHostname = "localhost"
  ) {
    const serverAndAccount =
      localAccountUtils.create_incoming_server_and_account(
        aType,
        aPort,
        aUsername,
        aPassword,
        aHostname
      );
    return serverAndAccount.server;
  },

  /**
   * Create an nsIMsgIncomingServer and an nsIMsgAccount to go with it.
   * There are no identities created for the account.
   *
   * @param {string} aType - The type of the server (pop3, imap etc).
   * @param {integer} aPort - The port the server is on.
   * @param {string} aUsername - The username for the server.
   * @param {string} aPassword - The password for the server.
   * @param {string} aHostname - The hostname for the server (defaults to localhost).
   * @returns {object} object
   * @returns {nsIMsgIncomingServer} object.server Created server
   * @returns {nsIMsgAccount} object.account Created account
   */
  create_incoming_server_and_account(
    aType,
    aPort,
    aUsername,
    aPassword,
    aHostname = "localhost"
  ) {
    const server = MailServices.accounts.createIncomingServer(
      aUsername,
      aHostname,
      aType
    );
    server.port = aPort;
    if (aUsername != null) {
      server.username = aUsername;
    }
    if (aPassword != null) {
      server.password = aPassword;
    }

    server.valid = false;

    const account = MailServices.accounts.createAccount();
    account.incomingServer = server;
    if (aType == "pop3") {
      // Several tests expect that mail is deferred to the local folders account,
      // so do that.
      this.loadLocalMailAccount();
      server.QueryInterface(Ci.nsIPop3IncomingServer);
      server.deferredToAccount = this.msgAccount.key;
    }
    server.valid = true;

    return { server, account };
  },

  /**
   * Create and configure an outgoing nsIOutgoingServer with the given
   * parameters.
   *
   * @param {string} type - The server's type.
   * @param {string} aUsername - The username for the server
   * @param {string} aPassword - The password for the server
   * @param {object} [protocolConfig={}] - Protocol-specific configuration for
   *                                       the server.
   * @returns {nsIOutgoingServer} The newly-created nsIOutgoingServer.
   */
  create_outgoing_server(type, aUsername, aPassword, protocolConfig = {}) {
    const server = MailServices.outgoingServer.createServer(type);

    switch (type) {
      case "smtp":
        this.configure_smtp_server(server, protocolConfig);
    }

    server.authMethod = Ci.nsMsgAuthMethod.none;
    return server;
  },

  /**
   * Configures an SMTP server with the given parameters.
   *
   * The server's hostname and port default to "localhost" and 0, respectively.
   *
   * @param {nsIMsgOutgoingServer} server - The server to configure.
   * @param {object} params - The parameters to use to configure the SMTP
   *                          server.
   * @param {string} params.hostname - The host name for the SMTP server.
   *                                   Defaults to "localhost".
   * @param {number} params.port - The port for the SMTP server. Defaults to 0,
   *                               which tells the SMTP client to infer the port
   *                               from the server's encryption settings.
   * @param {string} params.clientid - The client ID for the server. Setting it
   *                                   will work only if the server's
   *                                   `clientidEnabled` pref (or the default
   *                                   server's) is set to true (otherwise this
   *                                   property is ignored). Does not have a
   *                                   default value.
   */
  configure_smtp_server(server, params) {
    const smtpServer = server.QueryInterface(Ci.nsISmtpServer);

    smtpServer.hostname = params.hostname ? params.hostname : "localhost";
    smtpServer.port = params.port ? params.port : 0;

    if (smtpServer.clientid) {
      smtpServer.clientid;
    }
  },

  /**
   * Associate the given outgoing server with the given account.
   * It does so by creating a new identity in the account using the given outgoing
   * server.
   *
   * @param {nsIMsgAccount} aAccount - The account to associate.
   * @param {nsIOutgoingServer} aOutgoingServer - The outgoing server to associate.
   * @param {bool} aSetAsDefault - Whether to set the outgoing server as the
   *   default for the account.
   */
  associate_servers(aAccount, aOutgoingServer, aSetAsDefault = false) {
    if (!(aAccount instanceof Ci.nsIMsgAccount)) {
      throw new Error("aIncoming isn't an account");
    }

    const identity = MailServices.accounts.createIdentity();
    identity.smtpServerKey = aOutgoingServer.key;

    aAccount.addIdentity(identity);

    if (aSetAsDefault) {
      aAccount.defaultIdentity = identity;
    }
  },
};