From 0c9bdf42ec2b037baed40a94f7612c120ebf787d Mon Sep 17 00:00:00 2001
From: Filippo Berto <berto.f@protonmail.com>
Date: Mon, 18 Sep 2023 11:56:57 +0200
Subject: [PATCH] Fix LF previewer

---
 modules/hm/lf.nix | 118 ++++++++++++++++++++++++++++++++++------------
 1 file changed, 87 insertions(+), 31 deletions(-)

diff --git a/modules/hm/lf.nix b/modules/hm/lf.nix
index 9634314..8a76271 100644
--- a/modules/hm/lf.nix
+++ b/modules/hm/lf.nix
@@ -1,13 +1,9 @@
 { pkgs, ... }:
 let
   cleaner = pkgs.writeShellScript "cleaner" ''
-    file=$1
-  
-    case $TERM in
-      xterm-kitty ) kitty +icat --clear --silent --transfer-mode $file; ;;
-      * ) exit 0 ;;
-    esac
+    kitty +kitten icat --clear --stdin no --silent --transfer-mode file < /dev/null > /dev/tty
   '';
+
   previewer = pkgs.writeShellScript "previewer" ''
     file=$1
     w=$2
@@ -15,10 +11,44 @@ let
     x=$4
     y=$5
 
-    case $TERM in
-      xterm-kitty ) kitty +icat --silent --transfer-mode file --place "''${w}x''${h}@''${x}x''${y}" "$file"; ;;
-      * ) ${pkgs.pistol}/bin/pistol "$file"; ;;
+    preview() {
+        kitty +kitten icat --silent --stdin no --transfer-mode file --place "''${w}x''${h}@''${x}x''${y}" "$1" < /dev/null > /dev/tty
+    }
+
+    TEMPDIR=~/.cache/lf
+
+    file="$1"; shift
+    case "$(basename "$file" | tr '[A-Z]' '[a-z]')" in
+      *.tar*) tar tf "$file" ;;
+      *.zip) unzip -l "$file" ;;
+      *.rar) unrar l "$file" ;;
+      *.7z) 7z l "$file" ;;
+      *.avi|*.mp4|*.mkv)
+      	thumbnail="$TEMPDIR/thumbnail.png"
+      	ffmpeg -y -i "$file" -vframes 1 "$thumbnail"
+          preview "$thumbnail"
+      	;;
+      *.pdf)
+      	thumbnail="$TEMPDIR/thumbnail.png"
+      	gs -o "$thumbnail" -sDEVICE=pngalpha -dLastPage=1 "$file" >/dev/null
+          preview "$thumbnail"
+      	;;
+      *.jpg|*.jpeg|*.png|*.bmp)
+          preview "$file"
+          ;;
+      *.ttf|*.otf|*.woff)
+      	thumbnail="$TEMPDIR/thumbnail.png"
+      	fontpreview -i "$file" -o "$thumbnail"
+      	preview "$thumbnail"
+      	;;
+      *.svg)
+      	thumbnail="$TEMPDIR/thumbnail.png"
+      	convert "$file" "$thumbnail"
+      	preview "$thumbnail"
+      	;;
+      *) lf_bat_preview "$file" ;;
     esac
+    return 127 # nonzero retcode required for lf previews to reload
   '';
 in
 {
@@ -31,6 +61,7 @@ in
       number = true;
       # scrollof = 3;
       hidden = true;
+      ignorecase = true;
       tabstop = 2;
     };
     previewer = {
@@ -39,28 +70,53 @@ in
     };
     keybindings = { "<c-f>" = "$EDITOR $(fzf)"; };
     commands = {
-      "z" = ''
-        ''${{
-                result="$(zoxide query --exclude "$PWD" -- "$@")"
-                lf -remote "send $id cd '$result'"
-              }}'';
-      "zi" = ''
-        ''${{
-                result="$(zoxide query -i -- "$@")"
-                lf -remote "send $id cd '$result'"     
-              }}'';
-      "extract" = ''
-        ''${{
-                set -f
-                case $f in
-                  *.tar.bz|*.tar.bz2|*.tbz|*.tbz2) tar xjvf $f;;
-                  *.tar.gz|*.tgz) tar xzvf $f;;
-                  *.tar.xz|*.txz) tar xJvf $f;;
-                  *.zip) unzip $f;;
-                  *.rar) unrar x $f;;
-                  *.7z) 7z x $f;;
-                esac
-              }}'';
+      mkdir = ''''${{
+        printf "Directory name: "
+        read ans
+        mkdir $ans
+      }}'';
+      mkfile = ''''${{
+        printf "File name: "
+        read ans
+        $VISUAL $ans
+      }}'';
+
+      trash = ''''${{
+        files=$(printf "$fx" | tr '\n' ';')
+        while [ "$files" ]; do
+          file=''${files%%;*}
+
+          ${pkgs.trash-cli}/bin/trash-put "$(basename "$file")"
+          if [ "$files" = "$file" ]; then
+            files=""
+          else
+            files="''${files#*;}"
+          fi
+        done
+      }}'';
+      restore_trash = ''''${{
+        trash-restore
+      }}'';
+
+      z = ''''${{
+        result="$(zoxide query --exclude "$PWD" -- "$@")"
+        lf -remote "send $id cd '$result'"
+      }}'';
+      zi = ''''${{
+        result="$(zoxide query -i -- "$@")"
+        lf -remote "send $id cd '$result'"     
+      }}'';
+      extract = ''''${{
+        set -f
+        case $f in
+          *.tar.bz|*.tar.bz2|*.tbz|*.tbz2) tar xjvf $f;;
+          *.tar.gz|*.tgz) tar xzvf $f;;
+          *.tar.xz|*.txz) tar xJvf $f;;
+          *.zip) unzip $f;;
+          *.rar) unrar x $f;;
+          *.7z) 7z x $f;;
+        esac
+      }}'';
       "tar" = ''
         ''${{
                 set -f