From dd565a928a42f870302b3a14eea28eebc575071f Mon Sep 17 00:00:00 2001
From: lassulus <lassulus@lassul.us>
Date: Thu, 30 Dec 2021 02:14:35 +0100
Subject: weechat-declarative: init

---
 krebs/5pkgs/simple/weechat-declarative/default.nix | 153 +++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 krebs/5pkgs/simple/weechat-declarative/default.nix

diff --git a/krebs/5pkgs/simple/weechat-declarative/default.nix b/krebs/5pkgs/simple/weechat-declarative/default.nix
new file mode 100644
index 000000000..dceb7a8d0
--- /dev/null
+++ b/krebs/5pkgs/simple/weechat-declarative/default.nix
@@ -0,0 +1,153 @@
+{ pkgs, lib, ... }@args:
+
+let
+  # config cannot be declared in the input attribute set because that would
+  # cause callPackage to inject the wrong config.  Instead, get it from ...
+  # via args.
+  config = args.config or {};
+
+  lib = args.lib // rec {
+    attrPaths = let
+      recurse = path: value:
+        if builtins.isAttrs value then
+          lib.mapAttrsToList (name: recurse (path ++ [ name ])) value
+        else [ (lib.nameValuePair path value) ];
+    in attrs: lib.flatten (recurse [] attrs);
+
+    attrPathsSep = sep: attrs: lib.listToAttrs (map (x: x // { name = lib.concatStringsSep sep x.name; }) (attrPaths attrs));
+
+    toWeechatValue = x: {
+      bool = builtins.toJSON x;
+      string = x;
+      list = lib.concatMapStringsSep "," toWeechatValue x;
+      int = toString x;
+    }.${builtins.typeOf x};
+
+    setCommand = name: value: "/set ${name} \"${toWeechatValue value}\"";
+
+    filterAddreplace = name: filter:
+      "/filter addreplace ${name} ${filter.buffer} ${lib.concatStringsSep "," filter.tags} ${filter.regex}";
+  };
+
+  cfg = eval.config;
+
+  eval = lib.evalModules {
+    modules = lib.singleton {
+      _file = toString ./weechat-declarative.nix;
+      imports = lib.singleton config;
+      options = {
+        scripts = lib.mkOption {
+          type = lib.types.listOf lib.types.package;
+          default = [];
+          description = ''
+            some stuff from pkgs.weechatScripts
+          '';
+        };
+        settings = lib.mkOption {
+          type = (pkgs.formats.json {}).type;
+          description = ''
+            your weechat config in nix-style syntax.
+            secrets can be defined with \''${my.secret.value}
+          '';
+          default = {};
+          example = {
+            irc.server_default.nicks = "rick_\\\${sec.data.foo}";
+            irc.server_default.msg_part = "ciao kakao";
+            irc.server_default.msg_quit = "tschö mit \\\${sec.data.foo}";
+            irc.look.color_nicks_in_nicklist = true;
+            matrix.server.nibbana = {
+              address = "nibbana.jp";
+            };
+            irc.server.hackint = {
+              address = "irc.hackint.org/6697";
+              ssl = true;
+              autoconnect = true;
+              autojoin = [ "#krebs" ];
+            };
+            weechat.bar.buflist.hidden = true;
+            irc.server.hackint.command = lib.concatStringsSep ";" [
+              "/msg nickserv IDENTIFY \\\${sec.data.hackint_password}"
+              "/msg nickserv SET CLOAK ON"
+            ];
+            filters.playlist_topic = {
+              buffer = "irc.*.#the_playlist";
+              tags = [ "irc_topic" ];
+              regex = "*";
+            };
+            relay = {
+              port.weechat = 9000;
+              network.password = "hunter2";
+            };
+            alias.cmd.mod = "quote omode $channel +o $nick";
+            secure.test.passphrase_command = "echo lol1234123124";
+          };
+        };
+        extraCommands = lib.mkOption {
+          type = lib.types.lines;
+          default = "";
+        };
+        files = lib.mkOption {
+          type = lib.types.attrsOf lib.types.str;
+          default = {};
+          example = lib.literalExpression ''
+            {
+              "sec.conf" = toString (pkgs.writeText "sec.conf" '''
+                [crypt]
+                cipher = aes256
+                hash_algo = sha256
+                passphrase_command = ""
+                salt = on
+
+                [data]
+                __passphrase__ = off
+                foo = "bar"
+              ''');
+            }
+          '';
+        };
+      };
+    };
+  };
+
+  weechat = pkgs.weechat.override {
+    configure = _: {
+      init = lib.optionalString (cfg.settings != {})
+        (lib.concatStringsSep "\n" (
+          lib.optionals
+            (cfg.settings.irc or {} != {})
+            (lib.mapAttrsToList
+              (name: server: "/server add ${name} ${server.address}")
+              cfg.settings.irc.server)
+          ++
+          lib.optionals
+            (cfg.settings.matrix or {} != {})
+            (lib.mapAttrsToList
+              (name: server: "/matrix server add ${name} ${server.address}")
+              cfg.settings.matrix.server)
+          ++
+          lib.mapAttrsToList lib.setCommand (lib.attrPathsSep "." cfg.settings)
+          ++
+          lib.optionals
+            (cfg.settings.filters or {} != {})
+            (lib.mapAttrsToList lib.filterAddreplace cfg.settings.filters)
+          ++
+          lib.singleton cfg.extraCommands
+        ));
+
+      scripts = cfg.scripts;
+    };
+  };
+
+in pkgs.writers.writeDashBin "weechat" ''
+  CONFDIR=''${XDG_CONFIG_HOME:-$HOME/.config}/weechat
+  ${pkgs.coreutils}/bin/mkdir -p "$CONFDIR"
+  ${lib.concatStringsSep "\n"
+    (lib.mapAttrsToList
+      (name: target: /* sh */ ''
+        ${pkgs.coreutils}/bin/ln -s ${lib.escapeShellArg target} "$CONFDIR"/${lib.escapeShellArg name}
+      '')
+      cfg.files
+    )
+  }
+  exec ${weechat}/bin/weechat "$@"
+''
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