From 22f74186edca15d7169aaa63c8ebf6f6549d649b Mon Sep 17 00:00:00 2001
From: lassulus <lassulus@lassul.us>
Date: Sat, 9 Sep 2017 00:09:04 +0200
Subject: newsbot-js: add multiple instances

---
 krebs/3modules/newsbot-js.nix | 135 ++++++++++++++++++++++--------------------
 1 file changed, 72 insertions(+), 63 deletions(-)

diff --git a/krebs/3modules/newsbot-js.nix b/krebs/3modules/newsbot-js.nix
index dd3e5647a..d372081ee 100644
--- a/krebs/3modules/newsbot-js.nix
+++ b/krebs/3modules/newsbot-js.nix
@@ -6,51 +6,59 @@ let
 
   cfg = config.krebs.newsbot-js;
 
+  enable = cfg != {};
+
   out = {
     options.krebs.newsbot-js = api;
-    config = mkIf cfg.enable imp;
+    config = mkIf enable imp;
   };
 
-  api = {
-    enable = mkEnableOption "Enable krebs newsbot";
-    package = mkOption {
-      type = types.package;
-      default = pkgs.newsbot-js;
-      description = "newsbot package to use";
-    };
-    ircServer = mkOption {
-      type = types.str;
-      default = "echelon.retiolum";
-      description = "to which server the bot should connect";
-    };
-    channel = mkOption {
-      type = types.str;
-      default = "#news";
-      description = "post the news in this channel";
-    };
-    masterNick = mkOption {
-      type = types.str;
-      default = "knews";
-      description = "nickname of the master bot";
-    };
-    feeds = mkOption {
-      type = types.path;
-      description = ''
-        file with feeds to post
-        format:
-        $nick|$feedURI
-      '';
-    };
-    urlShortenerHost = mkOption {
-      type = types.str;
-      default = "echelon";
-      description = "what server to use for url shortening, host";
-    };
-    urlShortenerPort = mkOption {
-      type = types.str;
-      default = "80";
-      description = "what server to use for url shortening, port";
-    };
+  api = mkOption {
+    type = types.attrsOf (types.submodule ({ config, ... }: {
+      options = {
+        enable = mkEnableOption "Enable krebs newsbot" // { default = true; };
+
+        channel = mkOption {
+          type = types.str;
+          default = "#${config._module.args.name}";
+          description = "post the news in this channel";
+        };
+        feeds = mkOption {
+          type = types.path;
+          description = ''
+            file with feeds to post
+            format:
+            $nick|$feedURI
+          '';
+        };
+        ircServer = mkOption {
+          type = types.str;
+          default = "localhost";
+          description = "to which server the bot should connect";
+        };
+        masterNick = mkOption {
+          type = types.str;
+          default = config._module.args.name;
+          description = "nickname of the master bot";
+        };
+        package = mkOption {
+          type = types.package;
+          default = pkgs.newsbot-js;
+          description = "newsbot package to use";
+        };
+        urlShortenerHost = mkOption {
+          type = types.str;
+          default = "go";
+          description = "what server to use for url shortening, host";
+        };
+        urlShortenerPort = mkOption {
+          type = types.str;
+          default = "80";
+          description = "what server to use for url shortening, port";
+        };
+      };
+    }));
+    default = {};
   };
 
   imp = {
@@ -61,32 +69,33 @@ let
       home = "/var/empty";
     };
 
-    systemd.services.newsbot-js = {
-      description = "krebs newsbot";
-      after = [ "network.target" ];
-      wantedBy = [ "multi-user.target" ];
+    systemd.services = mapAttrs' (name: newsbot:
+      nameValuePair "newsbot-${name}" {
+        after = [ "network.target" ];
+        wantedBy = [ "multi-user.target" ];
 
-      path = with pkgs; [
-        newsbot-js
-      ];
+        path = with pkgs; [
+          newsbot-js
+        ];
 
-      environment = {
-        irc_server = cfg.ircServer;
-        master_nick = cfg.masterNick;
-        news_channel = cfg.channel;
-        feeds_file = cfg.feeds;
-        url_shortener_host = cfg.urlShortenerHost;
-        url_shortener_port = cfg.urlShortenerPort;
-      };
+        environment = {
+          irc_server = newsbot.ircServer;
+          master_nick = newsbot.masterNick;
+          news_channel = newsbot.channel;
+          feeds_file = newsbot.feeds;
+          url_shortener_host = newsbot.urlShortenerHost;
+          url_shortener_port = newsbot.urlShortenerPort;
+        };
 
-      restartIfChanged = true;
+        restartIfChanged = true;
 
-      serviceConfig = {
-        User = "newsbot-js";
-        Restart = "always";
-        ExecStart = "${cfg.package}/bin/newsbot";
-      };
-    };
+        serviceConfig = {
+          User = "newsbot-js";
+          Restart = "always";
+          ExecStart = "${newsbot.package}/bin/newsbot";
+        };
+      }
+    ) cfg;
   };
 
 in out
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