add actual picker functionality

wallpaper-spmenu

@@ -3,10 +3,15 @@
 # Wallpaper picker for X11 and Wayland using spmenu.
 # Licensed under the GNU General Public License version 3.0
 
+VERSION="${VERSION:-0.1}"
 PROTOCOL="${PROTOCOL:-1}" # Protocol to use (0: X11, 1: Wayland/wlroots)
 LOAD_CONFIG="${LOAD_CONFIG:-true}" # Load config (0/1)
 WALLPAPER_CONFIG_FILE="${WALLPAPER_CONFIG_FILE:-$HOME/.config/spmenu/wallpaper/config}" # Use same directory as spmenu
+WALLPAPER_CONFIG_DIR="$(dirname "$WALLPAPER_CONFIG_FILE")"
 WALLPAPER_DIR="${WALLPAPER_DIR:-~/Wallpapers}" # Default wallpaper directory
+DEFAULT_FEATURE="${DEFAULT_FEATURE:-pw}"
+DEFAULT_MODE="${DEFAULT_MODE:-fill}"
+ASK_MODE="${ASK_MODE:-false}"
 
 die() { printf "%s\n" "$*" && exit 1; }
 remove_arg() { args="$(printf "%s\n" "$args" | sed "s|$1||g")"; }
@@ -19,7 +24,7 @@ exit ${i:-0}
 }
 
 read_args() {
-    feature="pw"
+    feature="${DEFAULT_FEATURE}"
     args="$(printf "%s\n" "$@")"
     argc="$(printf "%s\n" "$@" | wc -l)"
 
@@ -59,17 +64,20 @@ check_deps() {
 }
 
 write_config() {
-    dir="$(dirname "$WALLPAPER_CONFIG_FILE")"
+    mkdir -p "$WALLPAPER_CONFIG_DIR" || die "failed to create directory $WALLPAPER_CONFIG_DIR"
-    mkdir -p "$dir" || die "failed to create directory $dir"
 
 cat << EOF > "$WALLPAPER_CONFIG_FILE"
-# wallpaper-spmenu
+# wallpaper-spmenu ${VERSION:-0.1}
 # This is the default config file for wallpaper-spmenu.
 # You can use any valid shell syntax here.
 # See https://spmenu.speedie.site wiki for more information.
 
 PROTOCOL="${PROTOCOL}" # Default protocol to use (0: X11, 1: Wayland w/ wlroots)
 WALLPAPER_DIR="${WALLPAPER_DIR}" # Default wallpaper directory, can be set on runtime
+
+DEFAULT_MODE="${DEFAULT_MODE}" # Default mode (stretch/fit/fill/center/tile)
+ASK_MODE="${ASK_MODE}" # Ask how the wallpaper should be set (true/false)
+DEFAULT_FEATURE="${DEFAULT_FEATURE}" # Default feature (sw/pw)
 EOF
 }
 
@@ -81,8 +89,65 @@ read_config() {
     . "$WALLPAPER_CONFIG_FILE"
 }
 
+write_script() {
+rm -f "$WALLPAPER_CONFIG_DIR/set_wallpaper.sh"
+cat << EOF > "$WALLPAPER_CONFIG_DIR/set_wallpaper.sh"
+EOF
+chmod +x "$WALLPAPER_CONFIG_DIR/set_wallpaper.sh"
+}
+
 pick_wallpaper() {
+    pick_wallpaper_file
+    [ -z "$selwal" ] && exit 1 # No file was picked
+
+    [ -e "$WALLPAPER_CONFIG_DIR/currentwallpaper" ] && \
+        mv "$WALLPAPER_CONFIG_DIR/currentwallpaper" "$WALLPAPER_CONFIG_DIR/prevwallpaper"
+
+    ln -s "$selwal" "$WALLPAPER_CONFIG_DIR/currentwallpaper"
+
+    write_script
+}
+
+pick_wallpaper_file() {
     [ ! -d "$WALLPAPER_DIR" ] && WALLPAPER_DIR="${HOME}"
+    cd "$WALLPAPER_DIR" || exit 1
+
+    # very much taken from spmenu_run
+    listing_files() {
+        command -v pre_list_func > /dev/null && pre_list_func
+
+        ls --color=always > /tmp/spmenu_ls_list
+        printf "..\n" >> /tmp/spmenu_ls_list
+
+        while read -r l; do
+            command -v line_func > /dev/null && line_fnc "$(pwd)/$l"
+            printf "%s\n" "$l"
+        done < "/tmp/spmenu_ls_list"; rm -f /tmp/spmenu_ls_list
+
+        command -v post_list_func > /dev/null && post_list_func
+    }
+
+    command -v pre_func > /dev/null && pre_func
+
+    listing_files | spmenu -l 40 -g 1 -p "$(pwd)" | sed -e 's/\x1b\[[0-9;]*m//g' > /tmp/spmenu_out
+
+    while read -r dir; do
+        case "$dir" in
+            *)
+                if [ -d "$dir" ]; then
+                    WALLPAPER_DIR="$(pwd)/$dir"
+                    command -v dir_func > /dev/null && dir_func "$dir"
+                    pick_wallpaper_file
+                elif [ -f "$dir" ]; then
+                    selwal="$(pwd)/$dir"
+                else
+                    return 1 # file not found
+                fi
+            ;;
+        esac
+
+        break # TODO: multisel
+    done < /tmp/spmenu_out; rm -f /tmp/spmenu_out
 }
 
 main() {
@@ -95,6 +160,8 @@ main() {
         "pw") pick_wallpaper ;;
     esac
 
+    printf "%s\n" "$selwal"
+
     return $?
 }