From b93770a3640c8bdcc32259abd9ab76cfb83b0355 Mon Sep 17 00:00:00 2001
From: Amin Bandali <amin@aminb.org>
Date: Sun, 30 Jul 2017 20:51:07 -0400
Subject: [PATCH] Add my little wallpaper/theme switcher

Uses systemd timers to automatically change the
wallpaper and switch my Xresources themes between
light and dark modes at 7am and 9pm.
---
 wp/.config/systemd/user/wp.service |  6 ++++
 wp/.config/systemd/user/wp.timer   | 10 +++++++
 wp/.local/bin/wp                   | 15 ++++++++++
 wp/.local/bin/wp-auto              | 48 ++++++++++++++++++++++++++++++
 4 files changed, 79 insertions(+)
 create mode 100644 wp/.config/systemd/user/wp.service
 create mode 100644 wp/.config/systemd/user/wp.timer
 create mode 100755 wp/.local/bin/wp
 create mode 100755 wp/.local/bin/wp-auto

diff --git a/wp/.config/systemd/user/wp.service b/wp/.config/systemd/user/wp.service
new file mode 100644
index 0000000..4308f83
--- /dev/null
+++ b/wp/.config/systemd/user/wp.service
@@ -0,0 +1,6 @@
+[Unit]
+Description=wallpaper service
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/bash -c %h/.local/bin/wp-auto
diff --git a/wp/.config/systemd/user/wp.timer b/wp/.config/systemd/user/wp.timer
new file mode 100644
index 0000000..448ab84
--- /dev/null
+++ b/wp/.config/systemd/user/wp.timer
@@ -0,0 +1,10 @@
+[Unit]
+Description=wallpaper timer
+
+[Timer]
+OnCalendar=07,21:00
+Unit=wp.service
+Persistent=true
+
+[Install]
+WantedBy=timers.target
diff --git a/wp/.local/bin/wp b/wp/.local/bin/wp
new file mode 100755
index 0000000..9bfbd51
--- /dev/null
+++ b/wp/.local/bin/wp
@@ -0,0 +1,15 @@
+#! /bin/bash
+
+export DISPLAY=:0
+
+case "$1" in
+  "day")
+    feh --bg-scale $HOME/usr/pics/island_day_by_arsenixc-d6ctqon.jpg
+    ;;
+  "night")
+    feh --bg-scale $HOME/usr/pics/island_night_by_arsenixc-d6cz757.jpg
+    ;;
+  *)
+    echo $"Usage: $0 {day|night}"
+    exit 1
+esac
diff --git a/wp/.local/bin/wp-auto b/wp/.local/bin/wp-auto
new file mode 100755
index 0000000..d5eeb12
--- /dev/null
+++ b/wp/.local/bin/wp-auto
@@ -0,0 +1,48 @@
+#! /bin/bash
+
+SED=$(which sed)
+ROFI=$(which rofi)
+
+export DISPLAY=:0
+HOUR=$(date +%H)
+
+if [ -z "${SED}" ]
+then
+    echo "Did not find 'sed', script cannot continue."
+    exit 1
+fi
+if [ -z "${ROFI}" ]
+then
+    echo "Did not find rofi, there is no point to continue."
+    exit 1
+fi
+
+###
+# Create if not exists, then removes #include of .theme file (if present) and add the selected theme to the end.
+# Repeated calls should leave the config clean-ish
+###
+function set_theme()
+{
+    CDIR="${HOME}/.config/rofi/"
+    if [ ! -d "${CDIR}" ]
+    then
+        mkdir -p ${CDIR}
+    fi
+    if [ -f "${CDIR}/config" ]
+    then
+        ${SED} -i "/rofi\.theme: .*\.rasi$/d" "${CDIR}/config"
+    fi
+    echo "rofi.theme: ${1}" >> "${CDIR}/config"
+
+}
+
+if [ "$HOUR" -gt "19" ] || [ "$HOUR" -lt "7" ]
+    then
+        feh --bg-scale $HOME/usr/pics/island_night_by_arsenixc-d6cz757.jpg
+        xrdb -merge $HOME/.Xresources.d/gruvbox-dark.xresources
+        set_theme "/usr/share/rofi/themes//gruvbox-dark.rasi"
+    else
+        feh --bg-scale $HOME/usr/pics/island_day_by_arsenixc-d6ctqon.jpg
+        xrdb -merge $HOME/.Xresources.d/gruvbox-light.xresources
+        set_theme "/usr/share/rofi/themes//gruvbox-light.rasi"
+fi
-- 
2.20.1