refactor: modulization

home/user/tmux.nix

@@ -0,0 +1,39 @@
+{ pkgs, lib, ... }:
+
+let
+  findDirs = [
+    "~/practice"
+    "~/projects"
+    "~/notes"
+  ];
+  tmuxSessionizer = pkgs.writeShellScriptBin "tmux-sessionizer" ''
+    if [[ $# -eq 1 ]]; then
+        selected=$1
+    else
+        selected=$(find ${lib.concatStringsSep " " findDirs} mindepth 1 -maxdepth 1 -type d | fzf)
+    fi
+
+    if [[ -z $selected ]]; then
+        exit 0
+    fi
+
+    selected_name=$(basename "$selected" | tr . _)
+    tmux_running=$(pgrep tmux)
+
+    if [[ -z $TMUX ]] && [[ -z $tmux_running ]]; then
+        tmux new-session -s $selected_name -c $selected
+        exit 0
+    fi
+
+    if ! tmux has-session -t=$selected_name 2> /dev/null; then
+        tmux new-session -ds $selected_name -c $selected
+    fi
+
+    tmux switch-client -t $selected_name
+  '';
+in
+{
+  home.packages = [
+    tmuxSessionizer
+  ];
+}