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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.eth.services.pushover;
escapeName = name: "pushover-${replaceStrings [ " " "'" ] [ "-" "" ] name}";
mkService = name: opts: {
name = escapeName name;
value = {
description = "Send ${name} notification";
serviceConfig = {
DynamicUser = true;
ExecStart = pkgs.writeShellScript (escapeName name) ''
${pkgs.curl}/bin/curl \
--verbose \
--form-string user=${cfg.userKey} \
--form-string token=${cfg.apiKey} \
--form-string message=${escapeShellArg opts.message} \
https://api.pushover.net/1/messages.json
'';
Environment = [ "HOME=/tmp" ];
NoNewPrivileges = true;
ProtectHome = true;
ProtectKernelTunables = true;
ProtectControlGroups = true;
ProtectKernelModules = true;
RestrictAddressFamilies = "AF_INET AF_INET6";
};
};
};
mkTimer = name: opts: {
name = escapeName name;
value = {
description = "Periodically send ${name} notification";
wants = [ "network.target" ];
after = [ "network.target" ];
wantedBy = [ "timers.target" ];
timerConfig = {
Unit = "${escapeName name}.service";
OnCalendar = opts.schedule;
RandomizedDelaySec = opts.delayUpTo;
Persistent = true;
};
};
};
in {
options.eth.services.pushover = {
enable = mkEnableOption "Send reminders with Pushover";
userKey = mkOption {
type = types.str;
description = "Your user key (NB: this will go into the Nix store)";
};
apiKey = mkOption {
type = types.str;
description = "The application API key (NB: this will go into the Nix store)";
};
reminders = mkOption {
type = types.attrsOf (types.submodule {
options = {
enable = mkEnableOption "Send a reminder with Pushover";
message = mkOption {
type = types.str;
description = "The message to send.";
};
schedule = mkOption {
type = types.str;
description = "A systemd.time timespec.";
};
delayUpTo = mkOption {
type = types.str;
description = "A systemd.time duration.";
};
};
});
example = {
"eat dinner" = {
enable = true;
message = "food is good for you";
schedule = "daily 18:30";
delayUpTo = "1h";
};
};
};
};
config = mkIf cfg.enable {
systemd = {
services = mapAttrs' mkService cfg.reminders;
timers = mapAttrs' mkTimer cfg.reminders;
};
};
}
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