refactor: refactored battery bash scripts into a C++ daemon

archived/battery-scripts/battery

@@ -25,7 +25,7 @@ battery-full() {
 }
 
 battery-low() {
-	notify-send "Low Battery" "${BAT_PERCENT}% of battery remaining." -u critical -i "battery-caution" -r 9991
+	notify-send "Low Battery" "${BAT_PERCENT}% of battery remaining." -u critical -i "battery-caution" -r 9991 -t 5000
 	touch $LOW_BAT_FILE
 	rm -rf $FULL_BAT_FILE
 }
@@ -67,7 +67,7 @@ elif [ "$BAT_PERCENT" -le $WARNING_PERCENT ] && [ "$DISCHARGING_COUNT" -eq 1 ] &
 
 # If LOW_BAT_FILE Exists, Spam Until It's Charging
 elif [ "$BAT_PERCENT" -le $WARNING_PERCENT ] && [ "$DISCHARGING_COUNT" -eq 1 ] && [ -f $LOW_BAT_FILE ]; then
-	notify-send "Low Battery" "${BAT_PERCENT}% of battery remaining." -u critical -i "battery-caution" -r 9991
+	notify-send "Low Battery" "${BAT_PERCENT}% of battery remaining." -u critical -i "battery-caution" -r 9991 -t 5000
 fi
 
 # Debug commands

archived/battery-scripts/battery-daemon

@@ -0,0 +1,5 @@
+#!/bin/bash
+while true; do
+	~/.scripts/notifs/battery
+	sleep 1
+done

daemons/battery-daemon.cpp

@@ -0,0 +1,173 @@
+#include <cstdio>
+#include <cstdlib>
+#include <fstream>
+#include <iostream>
+#include <sched.h> // pid_t data type
+#include <sys/select.h>
+#include <unistd.h> // For fork();
+
+using namespace std;
+
+// If another instance of this program is running...
+const char *lockFilePath = "/tmp/bat-daemon-run";
+
+// Checks if the file exists. (Another instance is running)
+bool isRunning() {
+  ifstream lockFile(lockFilePath);
+  return lockFile.good();
+}
+
+// Creates file w/ PID
+void createLockFile() {
+  ofstream lockFile(lockFilePath);
+  lockFile << getpid();
+}
+
+// Removes file.
+void removeLockFile() { remove(lockFilePath); }
+
+void send_notifs_warn(const int &percent) {
+  // Formulate command
+  string command =
+      "notify-send 'Low Battery' '" + to_string(percent) +
+      "% of battery remaining.' -u critical -i 'battery-caution' -t 5000";
+
+  // Execute command as a C-String (same contents, but compatible with C++ code)
+  // "Returns a pointer to an array that contains the contents of the variable"
+  system(command.c_str());
+}
+
+void send_notifs_charge(const int &percent, const int status) {
+  string command;
+
+  switch (status) {
+  case 1:
+    command = "notify-send 'Charging' 'Charging battery at " +
+              to_string(percent) +
+              "%' -u low -i 'battery-level-50-charging-symbolic' -t 5000";
+    break;
+
+  case 0:
+    command = "notify-send 'Discharging' '" + to_string(percent) +
+              "% remaining' -u low -i 'battery-level-70-symbolic' -t 5000";
+    break;
+  }
+
+  system(command.c_str());
+}
+
+void send_notifs_full() {
+  string command = "notify-send 'Battery Full' 'Battery is fully charged!' -i "
+                   "'battery-full-charged' -t 5000";
+  system(command.c_str());
+}
+
+// Turn program into a daemon.
+void daemonize() {
+  pid_t pid = fork();
+
+  // if forking fails, exit.
+  if (pid < 0) {
+    exit(EXIT_FAILURE);
+  }
+
+  if (pid > 0) {
+    exit(EXIT_SUCCESS);
+  }
+
+  // New session: if fails, exit.
+  // - New process becomes the leader
+  if (setsid() < 0) {
+    exit(EXIT_FAILURE);
+  }
+
+  // Change directory to root
+  chdir("/");
+
+  // Redirects all streams to /dev/null
+  freopen("/dev/null", "r", stdin);
+  freopen("/dev/null", "w", stdout);
+  freopen("/dev/null", "w", stderr);
+}
+
+// Checks battery info. (Charging, Discharging, etc.)
+void battery() {
+  int OLD_BAT_PERCENT = 100; // Maxing out to prevent bugs
+  int CHARGE = 0;            // 1 = Charging, 0 = Discharging
+  int BAT_FULL = 0;          // 1 = Full, 0 = Not Full
+  while (true) {
+    int BAT_WARN = 36;
+    // Read and Grab File Info:
+
+    // ifstream (input file stream) class: operates on files (I/O)
+    ifstream BAT_STATUS_FILE("/sys/class/power_supply/BAT0/status");
+    string BAT_STATUS;
+
+    ifstream BAT_PERCENT_FILE("/sys/class/power_supply/BAT0/capacity");
+    int BAT_PERCENT;
+
+    // If it can't extract info, exit.
+    if (!(BAT_PERCENT_FILE >> BAT_PERCENT) ||
+        !(BAT_STATUS_FILE >> BAT_STATUS)) {
+      exit(EXIT_FAILURE);
+    }
+
+    // Timing:
+    // timeval = Time Value accurate from microseconds to years.
+    struct timeval tv;
+
+    // Set intervals: 0sec + 100 milsec.
+    tv.tv_sec = 0;
+    tv.tv_usec = 100000;
+
+    if (BAT_PERCENT <= BAT_WARN) {
+      if ((BAT_PERCENT < OLD_BAT_PERCENT) && (BAT_STATUS == "Discharging")) {
+        CHARGE = 0;
+        OLD_BAT_PERCENT = BAT_PERCENT;
+        send_notifs_warn(BAT_PERCENT);
+      }
+    }
+
+    if (BAT_STATUS == "Charging") {
+      if ((BAT_PERCENT < 99) && (CHARGE == 0)) {
+        CHARGE = 1;
+        OLD_BAT_PERCENT = BAT_PERCENT;
+        BAT_FULL = 0;
+        send_notifs_charge(BAT_PERCENT, CHARGE);
+      }
+
+      if (BAT_PERCENT >= 99 && BAT_FULL == 0) {
+        BAT_FULL = 1;
+        CHARGE = 1;
+        send_notifs_full();
+      }
+    }
+
+    if (BAT_STATUS == "Discharging" && CHARGE == 1) {
+      CHARGE = 0;
+      send_notifs_charge(BAT_PERCENT, CHARGE);
+
+      if (BAT_PERCENT < 99) {
+        BAT_FULL = 0;
+      }
+    }
+
+    select(0, NULL, NULL, NULL, &tv);
+  }
+}
+
+// Initializer
+int main() {
+  if (isRunning()) {
+    cout << "Another process already exists!" << endl;
+    return 1;
+  }
+
+  createLockFile();
+
+  daemonize();
+  battery();
+
+  removeLockFile();
+  return 0;
+}

notifs/brightness

@@ -11,6 +11,10 @@ bright_dec() {
 
 }
 
+keybind-func() {
+	echo "$CURRENT_BRIGHTNESS"
+}
+
 while test $# -gt 0; do
 	case "$1" in
 	inc)
@@ -20,5 +24,10 @@ while test $# -gt 0; do
 	dec)
 		bright_dec && exit 0
 		;;
+
+	keybind)
+		keybind-func && exit 0
+		;;
+
 	esac
 done

notifs/info

@@ -0,0 +1,15 @@
+#!/bin/bash
+
+# Enter scripts directory
+cd ~/.scripts/notifs || exit
+
+# Constants
+CURRENT_VOL=$(./volume keybind | grep -o '^[^ ]*')
+CURRENT_MIC_VOL=$(./volume keybind | awk '{ print $2 }')
+BRIGHTNESS=$(./brightness keybind)
+
+# Variables for display, basically multiplies floats to integers
+DISPLAY_VOL=$(awk '{ print $1 * $2 }' <<<"${CURRENT_VOL} 100")
+DISPLAY_MIC_VOL=$(awk '{ print $1 * $2 }' <<<"${CURRENT_MIC_VOL} 100")
+
+dunstify "All other info:" "Brightness: $BRIGHTNESS%\nCurrent Volume: $DISPLAY_VOL%\nCurrent Mic. Volume: $DISPLAY_MIC_VOL%"

notifs/volume

@@ -92,6 +92,10 @@ mic_mute_toggle() {
 	fi
 }
 
+keybind-func() {
+	echo "$CURRENT_VOL" "$CURRENT_MIC_VOL"
+}
+
 while test $# -gt 0; do
 	case "$1" in
 	inc)
@@ -118,5 +122,9 @@ while test $# -gt 0; do
 		mic_mute_toggle && exit 0
 		;;
 
+	keybind)
+		keybind-func && exit 0
+		;;
+
 	esac
 done

notifs/window

@@ -0,0 +1,3 @@
+#!/bin/bash
+dunstify "Switching Window" "Current Window: $1" -t 1000 -r 5000
+swaymsg workspace number "$1"