nixos/home/accounts/email.nix

{ config, lib, pkgs, ... }: {
  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.libsecret}/bin/secret-tool lookup email ${userName}";
        mbsync = {
          enable = lib.mkDefault accountEnabled;
          create = "both";
          expunge = "both";
          remove = "both";
          patterns = [ "*" "!All Mail" "!Spam" "!Labels*" "!Starred" ];
          subFolders = "Verbatim";
          extraConfig.account.AuthMechs = "LOGIN";
        };
        msmtp = {
          enable = lib.mkDefault accountEnabled;
          extraConfig = {
            tls = "off";
            auth = "login";
          };
        };
        mu.enable = lib.mkDefault accountEnabled;
        neomutt.enable = lib.mkDefault accountEnabled;
      };
      icloud = let accountEnabled = true;
      in rec {
        inherit realName;
        primary = lib.mkDefault false;
        maildir.path = "iCloud";
        imap.host = "imap.mail.me.com";
        smtp.host = "smtp.mail.me.com";
        address = "e.litherlandsmith@icloud.com";
        userName = address;
        passwordCommand =
          "${pkgs.libsecret}/bin/secret-tool lookup email ${userName}";
        mbsync = {
          enable = lib.mkDefault accountEnabled;
          create = "both";
          expunge = "both";
          remove = "both";
          patterns = [ "*" "!Junk" ];
          subFolders = "Verbatim";
        };
        msmtp.enable = lib.mkDefault accountEnabled;
        mu.enable = lib.mkDefault accountEnabled;
        neomutt.enable = lib.mkDefault accountEnabled;
      };
      outlook = let
        host = "127.0.0.1";
        tls.enable = false;
        accountEnabled = true;
      in rec {
        inherit realName;
        primary = lib.mkDefault false;
        maildir.path = "Outlook";
        imap = {
          inherit host tls;
          port = 1144;
        };
        smtp = {
          inherit host tls;
          port = 1026;
        };
        address = "evie.litherland-smith@ukaea.uk";
        aliases = [ "elitherl@jet.uk" ];
        userName = address;
        passwordCommand =
          "${pkgs.libsecret}/bin/secret-tool lookup email ${userName}";
        mbsync = {
          enable = lib.mkDefault accountEnabled;
          create = "both";
          expunge = "both";
          remove = "both";
          patterns = [
            "*"
            "!Conversation History"
            "!Junk"
            "!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;
        neomutt.enable = lib.mkDefault accountEnabled;
      };
    };
  };
  programs = {
    mu.enable = true;
    msmtp.enable = true;
    mbsync = {
      enable = true;
      groups.inboxes = {
        proton = [ "INBOX" ];
        icloud = [ "INBOX" ];
        outlook = [ "INBOX" ];
      };
    };
    neomutt = {
      enable = true;
      checkStatsInterval = 60;
      sidebar.enable = true;
      extraConfig = ''
        color normal		  default default         # Text is "Text"
        color index		    color2 default ~N       # New Messages are Green
        color index		    color1 default ~F       # Flagged messages are Red
        color index		    color13 default ~T      # Tagged Messages are Red
        color index		    color1 default ~D       # Messages to delete are Red
        color attachment	color5 default          # Attachments are Pink
        color signature	  color8 default          # Signatures are Surface 2
        color search		  color4 default          # Highlighted results are Blue

        color indicator		default color8          # currently highlighted message Surface 2=Background Text=Foreground
        color error		    color1 default          # error messages are Red
        color status		  color15 default         # status line "Subtext 0"
        color tree        color15 default         # thread tree arrows Subtext 0
        color tilde       color15 default         # blank line padding Subtext 0

        color hdrdefault  color13 default         # default headers Pink
        color header		  color13 default "^From:"
        color header	 	  color13 default "^Subject:"

        color quoted		  color15 default         # Subtext 0
        color quoted1		  color7 default          # Subtext 1
        color quoted2		  color8 default          # Surface 2
        color quoted3		  color0 default          # Surface 1
        color quoted4		  color0 default
        color quoted5		  color0 default

        color body		color2 default		[\-\.+_a-zA-Z0-9]+@[\-\.a-zA-Z0-9]+               # email addresses Green
        color body	  color2 default		(https?|ftp)://[\-\.,/%~_:?&=\#a-zA-Z0-9]+        # URLs Green
        color body		color4 default		(^|[[:space:]])\\*[^[:space:]]+\\*([[:space:]]|$) # *bold* text Blue
        color body		color4 default		(^|[[:space:]])_[^[:space:]]+_([[:space:]]|$)     # _underlined_ text Blue
        color body		color4 default		(^|[[:space:]])/[^[:space:]]+/([[:space:]]|$)     # /italic/ text Blue

        color sidebar_flagged   color1 default    # Mailboxes with flagged mails are Red
        color sidebar_new       color10 default   # Mailboxes with new mail are Green
      '';
    };
  };
  services.mbsync = {
    enable = true;
    frequency = "*:0/15"; # Every 15 minutes
  };
  systemd.user.services = let emailAccounts = config.accounts.email.accounts;
  in {
    protonmail-bridge = lib.mkIf emailAccounts.proton.mbsync.enable {
      Unit = {
        Description = "Podman container-protonmail-bridge.service";
        Documentation = [ "man:podman-generate-systemd(1)" ];
        Wants = [ "network-online.target" ];
        After = [ "network-online.target" ];
        RequiresMountsFor = "%t/containers";
      };
      Service = {
        Environment =
          [ "PODMAN_SYSTEMD_UNIT=%n" "PATH=/run/wrappers/bin/:$PATH" ];
        Restart = "always";
        TimeoutStopSec = 70;
        ExecStart = ''
          ${pkgs.podman}/bin/podman run \
            --cidfile=%t/%n.ctr-id \
            --cgroups=no-conmon \
            --rm \
            --sdnotify=conmon \
            --replace \
            -d \
            --name=protonmail-bridge \
            -v protonmail:/root \
            -p 127.0.0.1:1025:25/tcp \
            -p 127.0.0.1:1143:143/tcp shenxn/protonmail-bridge'';
        ExecStop = ''
          ${pkgs.podman}/bin/podman stop \
            --ignore -t 10 \
            --cidfile=%t/%n.ctr-id'';
        ExecStopPost = ''
          ${pkgs.podman}/bin/podman rm \
            -f \
            --ignore -t 10 \
            --cidfile=%t/%n.ctr-id'';
        Type = "notify";
        NotifyAccess = "all";
      };
      Install.WantedBy = [ "default.target" ];
    };
    davmail = lib.mkIf emailAccounts.outlook.mbsync.enable {
      Unit = {
        Description = "Davmail server";
        Wants = [ "network-online.target" ];
        After = [ "network-online.target" ];
      };
      Service = {
        Environment = [ "PATH=/run/current-system/sw/bin/:$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" ];
    };
  };
}