nixos/home/accounts/email.nix

{
  config,
  lib,
  pkgs,
  hostName,
  ...
}: {
  home.packages = with pkgs; [davmail];
  accounts.email = {
    maildirBasePath = "Mail";
    accounts = let
      realName = "Evie Litherland-Smith";
    in {
      proton = let
        host = "127.0.0.1";
        tls.enable = false;
        accountEnabled = true;
      in rec {
        inherit realName;
        primary = lib.mkDefault true;
        maildir.path = "Proton";
        imap = {
          inherit host tls;
          port = 1143;
        };
        smtp = {
          inherit host tls;
          port = 1025;
        };
        address = "e.litherlandsmith@proton.me";
        aliases = ["evie@xenia.me.uk" "evie@litherlandsmith.slmail.me"];
        userName = address;
        passwordCommand = "${pkgs.pass}/bin/pass show mbsync/${hostName}/proton | head -n1";
        mbsync = {
          enable = lib.mkDefault accountEnabled;
          create = "both";
          expunge = "both";
          remove = "both";
          patterns = ["*" "!All Mail" "!Labels*" "!Starred" "!Recovered Messages"];
          subFolders = "Verbatim";
          extraConfig.account.AuthMechs = "LOGIN";
        };
        msmtp = {
          enable = lib.mkDefault accountEnabled;
          extraConfig = {
            tls = "off";
            auth = "login";
          };
        };
        mu.enable = lib.mkDefault accountEnabled;
      };
      icloud = let
        accountEnabled = true;
      in rec {
        inherit realName;
        primary = lib.mkDefault false;
        maildir.path = "iCloud";
        imap.host = "imap.mail.me.com";
        smtp.host = "smtp.mail.me.com";
        address = "e.litherlandsmith@icloud.com";
        userName = address;
        passwordCommand = "${pkgs.pass}/bin/pass show mbsync/${hostName}/icloud | head -n1";
        mbsync = {
          enable = lib.mkDefault accountEnabled;
          create = "both";
          expunge = "both";
          remove = "both";
          patterns = ["*" "!Notes"];
          subFolders = "Verbatim";
        };
        msmtp.enable = lib.mkDefault accountEnabled;
        mu.enable = lib.mkDefault accountEnabled;
      };
      outlook = let
        host = "127.0.0.1";
        tls.enable = false;
        accountEnabled = true;
      in rec {
        inherit realName;
        primary = lib.mkDefault false;
        maildir.path = "Outlook";
        imap = {
          inherit host tls;
          port = 1144;
        };
        smtp = {
          inherit host tls;
          port = 1026;
        };
        address = "evie.litherland-smith@ukaea.uk";
        aliases = ["elitherl@jet.uk"];
        userName = address;
        passwordCommand = "${pkgs.pass}/bin/pass show mbsync/${hostName}/outlook | head -n1";
        mbsync = {
          enable = lib.mkDefault accountEnabled;
          create = "both";
          expunge = "both";
          remove = "both";
          patterns = [
            "*"
            "!Conversation History"
            "!Snoozed"
            "!Social Activity Notifications"
            "!Sync Issues*"
            "!Unsent Messages"
          ];
          subFolders = "Verbatim";
          extraConfig.account.AuthMechs = "LOGIN";
        };
        msmtp = {
          enable = lib.mkDefault accountEnabled;
          extraConfig = {
            tls = "off";
            auth = "login";
          };
        };
        mu.enable = lib.mkDefault accountEnabled;
      };
    };
  };
  programs = {
    mu.enable = true;
    msmtp.enable = true;
    mbsync = {
      enable = true;
      groups.inboxes = {
        proton = ["INBOX"];
        icloud = ["INBOX"];
        outlook = ["INBOX"];
      };
    };
  };
  systemd.user.services = let
    emailAccounts = config.accounts.email.accounts;
  in {
    protonmail-bridge = lib.mkIf emailAccounts.proton.mbsync.enable {
      Unit = {
        Description = "Proton Mail Bridge";
        Wants = ["network-online.target"];
        After = ["network-online.target"];
      };
      Service = {
        Environment = ["PATH=/run/current-system/sw/bin/:$PATH"];
        Restart = "always";
        ExecStart = "${pkgs.protonmail-bridge}/bin/protonmail-bridge -n";
      };
      Install.WantedBy = ["default.target"];
    };
    davmail = lib.mkIf emailAccounts.outlook.mbsync.enable {
      Unit = {
        Description = "Davmail server";
        Wants = ["network-online.target"];
        After = ["network-online.target"];
      };
      Service = {
        Environment = ["PATH=/run/current-system/sw/bin/:$PATH"];
        Restart = "always";
        ExecStartPre = with config.home; ''
          /bin/sh -c "if [ ! -f ${homeDirectory}/.davmail.properties ]; then cp ${./.davmail.properties} ${homeDirectory}/.davmail.properties; fi; chmod 644 ${homeDirectory}/.davmail.properties"
        '';
        ExecStart = "${pkgs.davmail}/bin/davmail -notray ${config.home.homeDirectory}/.davmail.properties";
      };
      Install.WantedBy = ["default.target"];
    };
  };
}