{ config, pkgs, ... }: {
  programs.fish = {
    enable = true;
    interactiveShellInit = ''
     set fish_greeting ""
     set -gx DOTNET_ROOT $HOME/.dotnet
     fish_add_path $DOTNET_ROOT
     fish_add_path $DOTNET_ROOT/tools
     set -gx DOTNET_SYSTEM_NET_DISABLEIPV6 1
     bind \cd\cd\cd delete-or-exit
     bind \cf 'ts; commandline -f repaint'
     if type -q eza
       alias ls='eza --color=always --group-directories-first --icons'
       alias ll='eza -a --color=always --group-directories-first --icons'
       alias la='eza -al --group-directories-first --icons'
       alias lt='eza -aT --level=2 --group-directories-first --icons'
       alias l.='eza -ad .* --group-directories-first --icons'
     else
       printf "You may want to install eza\n"
     end
     if not set -q TMUX
       tmux attach-session -t Main 2>/dev/null; or tmux new-session -s Main
     end
     '';
     shellAliases = {
       rebuild = "sudo nixos-rebuild switch --flake $HOME/NixOS#damagedProperty";
       hms = "home-manager switch";
       sshavatar = "ssh warrentyexpired@192.168.88.111";
       sshvaultnas = "ssh warrentyexpired@192.168.88.100";
       sshservarr = "ssh warrentyexpired@192.168.88.101";
       sshdocker = "ssh warrentyexpired@192.168.88.102";
       sshlive = "ssh mementoadmin@uo-memento.com";
       sshproxy = "ssh warrentyexpired@192.168.88.200";
       stff = "mpv --autofit=10%";
       s = "goto s";
       g = "goto g";
       l = "goto l";
       mv = "mv -i --backup=t";
       cat = "bat";
     };
     shellAbbrs = {
       sshracknerd = ''mosh -p 60001 192.227.229.130 --ssh="ssh -p 5522"'';
     };
     functions = {
       ts = {
         description = "Tmux session manager with fuzzy search and quick jump";
         body = ''
           echo -e ""
           # 1. Show Active Sessions
           set -l active_sessions (tmux list-sessions 2>/dev/null)
           if test -n "$active_sessions"
             echo -e (set_color 99ff99)"󱫟 Active Sessions:"(set_color normal)
             for line in $active_sessions
               echo -e "   $line"
             end
              echo ""
           else
             echo -e (set_color 555555)"(No active sessions)"(set_color normal)
             echo ""
           end
           # 2. Provide choices
           echo -e (set_color 00afaf)"󰒓 Select an option:"(set_color normal)
           echo -e "  [1] Pick from active sessions (Fuzzy search)"
           echo -e "  [2] Create NEW custom session"
           echo -e "  [w] Enter Tmuxinator Workspaces"
           echo -e "  [d] Detach from current session"
           echo -e "  [x] Kill a session"
           echo -e "  [Enter] Quick jump to "(set_color -o)"Main"(set_color normal)
           echo ""
           read -l -P "Choice > " choice
           switch "$choice"
             case 1
               set -l session (tmux list-sessions -F "#{session_name}" 2>/dev/null | fzf --exit-0 --height=15% --reverse --header="Select Session")
               if test -n "$session"
                 if set -q TMUX
                   tmux switch-client -t "$session"
                 else
                   tmux attach-session -t "$session"
                 end
               end
             case 2
               read -l -P "Enter name for new session: " new_name
               if test -n "$new_name"
                 env -u TMUX tmux new-session -d -s "$new_name" 2>/dev/null
                 if set -q TMUX
                    tmux switch-client -t "$new_name"
                 else
                   tmux attach-session -t "$new_name"
               end
             end
             case d D
               if set -q TMUX; tmux detach-client; else; echo "You aren't in a tmux session!"; end
             case w W
               if type -q tmuxinator
                 tmuxinator start Workspace
               else
                 echo (set_color red)"Error: tmuxinator is not installed."(set_color normal)
               end
             case x X
               set -l session (tmux list-sessions -F "#{session_name}" 2>/dev/null | fzf --exit-0 --height=15% --reverse --header="Select Session to KILL")
               if test -n "$session"
                 tmux kill-session -t "$session"
                 echo "Killed session: $session"
                 ts 
             end
             case "" "*"
               env -u TMUX tmux new-session -d -s Main 2>/dev/null
               if set -q TMUX; tmux switch-client -t Main; else; tmux attach-session -t Main; end
             end
             commandline -f repaint
        '';
      };
      lookfor = {
        description = "Lookfor (d)irectory, (f)ile (a)ll (pattern)";
        body = ''
          if test (count $argv) -lt 2
            echo "Usage: lookfor (f)ile|(d)irectory|(a)ll "pattern""
            return 1
          end
          set -l type_flag $argv[1]
          set -l pattern $argv[2]
          switch $type_flag
            case f
              find . -type f -name "*$pattern*" 2>/dev/null
            case d
              find . -type d -name "*$pattern*" 2>/dev/null
            case a 
              find . -name "*$pattern*" 2>/dev/null
            case *
              echo "Invalid type: $type_flag. Use f for file or d for directory."
            return 1
          end
        '';
      };
      topsort = {
        description = "Sort files large to small.";
        body = ''
          du -sh * | sort -rh | head -10
        '';
      };
      fish_prompt = {
      body = ''
        set -l white (set_color white)
        set -l brwhite (set_color brwhite)
        set -l green (set_color green)
        set -l red (set_color red)
        set -l blue (set_color blue)
        # Line 1: ┌─ [user] @ [host] - homeFiles status
        echo -s $white"┌─ ["$green$USER$white"] "$brwhite"@ " $white"["$red$hostname$white"]"
        # Line 2: └─ [directory]
        set -l full_path (string replace -r "^$HOME" "~" $PWD)
        echo -s $white"├─ ["$blue$full_path$white"]"
        # Line 3: └─ [(git_branch)] or [$e]
        echo -n $white"└─ ["
        set -l git_info (gitinfo 2>/dev/null)
        if test -n "$git_info"
          echo -n $git_info
        else
          echo -n $brwhite"\$"
        end
        echo -n $white"]"
        # Final prompt symbol and reset
        echo -n $brwhite" "
        set_color normal
        '';
      };
      gitinfo = {
        body = ''
           if git rev-parse --is-inside-work-tree >/dev/null 2>&1
             set -l branch (git branch --show-current)
             set -l staged ""
             set -l dirty ""
             set -l untracked ""
           if not git diff --quiet
             set dirty (set_color yellow)"*"
           end
           if not git diff --cached --quiet
             set staged (set_color green)"+"
           end
           set -l untracked_files (git ls-files --others --exclude-standard)
           if test -n "$untracked_files"
             set untracked (set_color red)" *"
           end
          echo (set_color magenta)"($branch)"$staged$dirty$untracked(set_color normal)
          end
        '';
      };
      cdtmp = {
        body = ''
          set -l directory
          if set -q argv[1]
            set -l folder_name (string replace -all / _ $argv[1])
            set directory "/var/tmp/cdtmp.$folder_name"
            mkdir -p "$directory"
          else
            set directory (mktemp -d --tmpdir=/var/tmp cdtmp.XXXXXXXX)
          end
          if test -d "$directory"
            cd "$directory"
          end
        '';
      };
      stffpl = {
        body = ''
          mpv --autofit=10% --playlist="$argv[1]"
        '';
      };
      mkcd = {
        body = ''
          mkdir -p $argv
          and cd $argv[-1]
        '';
      };
      goto = {
        body = ''
          set -l gotoConfig "$HOME/.config/goto/bookmarks"
          set -l gotoDir "$HOME/.config/goto"
          mkdir -p "$gotoDir"
          touch "$gotoConfig"
          set -l command $argv[1]
          set -l bookmark_name $argv[2]
          if test -z "$command"
            echo "Usage: goto s <name> (save current directory)"
            echo "       goto g <name> (go to saved directory)"
            echo "       goto d <name> (delete a bookmark)"
            echo "       goto l        (list all bookmarks)"
            echo "       goto e        (edit bookmarks file)"
        return
        end
        switch $command
          case s # Save bookmarks
             if test -z "$bookmark_name"
                echo "Error: Must provide a bookmark name to save."
                return 1
             end
             sed -i "/^$bookmark_name:/d" "$gotoConfig"
             echo "$bookmark_name:"(pwd) >> "$gotoConfig"
             echo "Bookmark **$bookmark_name** saved to: **"(pwd)"**"
          case g # Go to bookmark
             if test -z "$bookmark_name"
                 echo "Error: Must provide a bookmark name to go to."
                 return 1
             end
            set -l target_path (grep "^$bookmark_name:" "$gotoConfig" | cut -d ':' -f 2)
            if test -z "$target_path"
                echo "Error: Bookmark **$bookmark_name** not found."
                return 1
            end
            if test -d "$target_path"
                cd "$target_path"
                echo "Jumping to: **$target_path**"
            else
                echo "Error: Directory **$target_path** does not exist or is not a directory"
            end
          case d # Delete bookmark
            if test -z "$bookmark_name"
                echo "Error: Must provide a bookmark name to delete."
                return 1
            end

            if grep -q "^$bookmark_name:" "$gotoConfig"
                sed -i "/^$bookmark_name:/d" "$gotoConfig"
                echo "Bookmark **$bookmark_name** deleted."
            else
                echo "Error: Bookmark **$bookmark_name** not found."
                return 1
            end
          case e # Edit bookmarks file
            if set -q EDITOR
                $EDITOR "$gotoConfig"
            else
                nano "$gotoConfig"
            end
          case l # List bookmarks
            if not test -s "$gotoConfig"
                echo "No bookmarks saved yet."
                return 0
            end
            echo "___ **Bookmarks** (Stored in: $gotoDir) ___"
            column -t -s ':' "$gotoConfig"
          case '*'
            echo "Invalid command: $command"
            goto # Show usage
          end
        '';
      };
    };
  };
}