Add ical2org service for calendar syncing

3 files changed, 79 insertions, 0 deletions

diff --git a/modules/calendar.home/.gitignore b/modules/calendar.home/.gitignore
new file mode 100644
index 0000000..a211cae
--- /dev/null
+++ b/modules/calendar.home/.gitignore
@@ -0,0 +1 @@
+private.nix
diff --git a/modules/calendar.home/default.nix b/modules/calendar.home/default.nix
new file mode 100644
index 0000000..997e2eb
--- /dev/null
+++ b/modules/calendar.home/default.nix
@@ -0,0 +1,23 @@
+{ config, ... }:
+let
+  private = import ./private.nix;
+in
+{
+  imports = [ ./ical2org.module.nix ];
+
+  services.ical2org = {
+    enable = true;
+    icalLink = private.icalLink;
+    outputPath = "${config.home.homeDirectory}/nixos/extras/notes/calendar-sync.autogen.org";
+    syncFrequency = "*:0/10";
+    settings = {
+      filetags = "calendar";
+      email = private.email;
+      title = "calendar";
+      category = "calendar";
+      startup = "showeverything";
+      past = 6; # days
+      future = 30; # days
+    };
+  };
+}
diff --git a/modules/calendar.home/ical2org.module.nix b/modules/calendar.home/ical2org.module.nix
new file mode 100644
index 0000000..7ea2c4a
--- /dev/null
+++ b/modules/calendar.home/ical2org.module.nix
@@ -0,0 +1,55 @@
+{ config, pkgs, lib, ... }:
+with lib;
+let
+  cfg = config.services.ical2org;
+
+  bunx = "${pkgs.bun}/bin/bunx";
+  curl = "${pkgs.curl}/bin/curl";
+  mktemp = "${pkgs.coreutils-full}/bin/mktemp";
+  rm = "${pkgs.coreutils-full}/bin/rm";
+
+  config-file =
+    pkgs.writeText "icsorg-config" (concatStringsSep "\n"
+      (mapAttrsToList (key: val: "${strings.toUpper key}=${toString val}") cfg.settings));
+
+  sync-script = ''
+    #!${pkgs.bash}/bin/bash
+    set -eu -o pipefail;
+
+    file=$(${mktemp} /tmp/ical2org.XXXX.ical);
+    trap "${rm} -f '$file'" EXIT;
+
+    ${curl} "${cfg.icalLink}" -o "$file";
+    ${bunx} icsorg -c "${config-file}" -i "$file" -o "${cfg.outputPath}";
+  '';
+
+  service-unit = {
+    Service = {
+      Type = "oneshot";
+      ExecStart = "${pkgs.writeScript "ical2org" sync-script}";
+      WorkingDirectory = config.home.homeDirectory;
+    };
+  };
+
+  timer-unit = {
+    Timer = {
+      OnCalendar = cfg.syncFrequency;
+      RandomizedDelaySec = 30;
+    };
+    Install.WantedBy = [ "timers.target" ];
+  };
+in {
+  options.services.ical2org = {
+    enable = mkEnableOption "ical2org sync";
+    syncFrequency = mkOption { type = types.str; default = "*:0/30"; };
+    icalLink = mkOption { type = types.str; };
+    outputPath = mkOption { type = types.str; };
+    settings = mkOption { type = types.attrs; default = {}; };
+  };
+
+  config = mkIf cfg.enable {
+    programs.lieer.enable = true;
+    systemd.user.services.ical2org = service-unit;
+    systemd.user.timers.ical2org = timer-unit;
+  };
+}