.functions

#!/usr/bin/env bash

# Change directory to the folder of the specified file
function sd() {
	local dirname="${@%/}";
	[ -f "${dirname}" ] && dirname=`dirname "${dirname}"`;
	cd "${dirname}";
}

# Cleans an OS X zipped file by removing __MACOSX and .DS_Store files
function rezip() {
  if [ -z "${1}" ]; then
    echo "Usage: \`rezip file.zip\`"
    return 1
  fi;
  local filename="${@%/}"
  if [ ${filename##*.} == "zip" ]; then
    [ -f "${filename}" ] && echo Fixing ${filename} && zip -d ${filename} \*.DS_Store || true && zip -d ${filename} __MACOSX/
  else
    echo "Invalid file format"
  fi
}

# Create a new directory and enter it
function mkd() {
	mkdir -p "$@" && cd "$_";
}

# Change working directory to the top-most Finder window location
function cdf() { # short for `cdfinder`
	cd "$(osascript -e 'tell app "Finder" to POSIX path of (insertion location as alias)')";
}

# Create a .tar.gz archive, using `zopfli`, `pigz` or `gzip` for compression
function targz() {
	local tmpFile="${@%/}.tar";
	tar -cvf "${tmpFile}" --exclude=".DS_Store" "${@}" || return 1;

	size=$(
		stat -f"%z" "${tmpFile}" 2> /dev/null; # macOS `stat`
		stat -c"%s" "${tmpFile}" 2> /dev/null;  # GNU `stat`
	);

	local cmd="";
	if (( size < 52428800 )) && hash zopfli 2> /dev/null; then
		# the .tar file is smaller than 50 MB and Zopfli is available; use it
		cmd="zopfli";
	else
		if hash pigz 2> /dev/null; then
			cmd="pigz";
		else
			cmd="gzip";
		fi;
	fi;

	echo "Compressing .tar ($((size / 1000)) kB) using \`${cmd}\`…";
	"${cmd}" -v "${tmpFile}" || return 1;
	[ -f "${tmpFile}" ] && rm "${tmpFile}";

	zippedSize=$(
		stat -f"%z" "${tmpFile}.gz" 2> /dev/null; # macOS `stat`
		stat -c"%s" "${tmpFile}.gz" 2> /dev/null; # GNU `stat`
	);

	echo "${tmpFile}.gz ($((zippedSize / 1000)) kB) created successfully.";
}

# Determine size of a file or total size of a directory
function fs() {
	if du -b /dev/null > /dev/null 2>&1; then
		local arg=-sbh;
	else
		local arg=-sh;
	fi
	if [[ -n "$@" ]]; then
		du $arg -- "$@";
	else
		du $arg .[^.]* ./*;
	fi;
}

# Use Git’s colored diff when available
hash git &>/dev/null;
if [ $? -eq 0 ]; then
	function diff() {
		git diff --no-index --color-words "$@";
	}
fi;

# Create a data URL from a file
function dataurl() {
	local mimeType=$(file -b --mime-type "$1");
	if [[ $mimeType == text/* ]]; then
		mimeType="${mimeType};charset=utf-8";
	fi
	echo "data:${mimeType};base64,$(openssl base64 -in "$1" | tr -d '\n')";
}

# Start an HTTP server from a directory, optionally specifying the port
function server() {
	local port="${1:-8000}";
	sleep 1 && open "http://localhost:${port}/" &
	# Set the default Content-Type to `text/plain` instead of `application/octet-stream`
	# And serve everything as UTF-8 (although not technically correct, this doesn’t break anything for binary files)
	python -c $'import SimpleHTTPServer;\nmap = SimpleHTTPServer.SimpleHTTPRequestHandler.extensions_map;\nmap[""] = "text/plain";\nfor key, value in map.items():\n\tmap[key] = value + ";charset=UTF-8";\nSimpleHTTPServer.test();' "$port";
}

# Start a PHP server from a directory, optionally specifying the port
# (Requires PHP 5.4.0+.)
function phpserver() {
	local port="${1:-4000}";
	local ip=$(ipconfig getifaddr en0);
	sleep 1 && open "http://${ip}:${port}/" &
	php -S "${ip}:${port}";
}

# Compare original and gzipped file size
function gz() {
	local origsize=$(wc -c < "$1");
	local gzipsize=$(gzip -c "$1" | wc -c);
	local ratio=$(echo "$gzipsize * 100 / $origsize" | bc -l);
	printf "orig: %d bytes\n" "$origsize";
	printf "gzip: %d bytes (%2.2f%%)\n" "$gzipsize" "$ratio";
}

# Run `dig` and display the most useful info
function digga() {
	dig +nocmd "$1" any +multiline +noall +answer;
}

# Show all the names (CNs and SANs) listed in the SSL certificate
# for a given domain
function getcertnames() {
	if [ -z "${1}" ]; then
		echo "ERROR: No domain specified.";
		return 1;
	fi;

	local domain="${1}";
	echo "Testing ${domain}…";
	echo ""; # newline

	local tmp=$(echo -e "GET / HTTP/1.0\nEOT" \
		| openssl s_client -connect "${domain}:443" -servername "${domain}" 2>&1);

	if [[ "${tmp}" = *"-----BEGIN CERTIFICATE-----"* ]]; then
		local certText=$(echo "${tmp}" \
			| openssl x509 -text -certopt "no_aux, no_header, no_issuer, no_pubkey, \
			no_serial, no_sigdump, no_signame, no_validity, no_version");
		echo "Common Name:";
		echo ""; # newline
		echo "${certText}" | grep "Subject:" | sed -e "s/^.*CN=//" | sed -e "s/\/emailAddress=.*//";
		echo ""; # newline
		echo "Subject Alternative Name(s):";
		echo ""; # newline
		echo "${certText}" | grep -A 1 "Subject Alternative Name:" \
			| sed -e "2s/DNS://g" -e "s/ //g" | tr "," "\n" | tail -n +2;
		return 0;
	else
		echo "ERROR: Certificate not found.";
		return 1;
	fi;
}

# Normalize `open` across Linux, macOS, and Windows.
# This is needed to make the `o` function (see below) cross-platform.
if [ ! $(uname -s) = 'Darwin' ]; then
	if grep -q Microsoft /proc/version; then
		# Ubuntu on Windows using the Linux subsystem
		alias open='explorer.exe';
	else
		alias open='xdg-open';
	fi
fi

# `o` with no arguments opens the current directory, otherwise opens the given
# location
function o() {
	if [ $# -eq 0 ]; then
		open .;
	else
		open "$@";
	fi;
}

# `tre` is a shorthand for `tree` with hidden files and color enabled, ignoring
# the `.git` directory, listing directories first. The output gets piped into
# `less` with options to preserve color and line numbers, unless the output is
# small enough for one screen.
function tre() {
	tree -aC -I '.git|node_modules|bower_components' --dirsfirst "$@" | less -FRNX;
}

# Git push and upload to remote host
function up() {
	if [ -f config.ini ]; then
	. config.ini
	zip -r payload.zip . --exclude="*.git*" --exclude=*.DS_Store* --exclude=payload.zip --exclude=config.ini
	scp payload.zip $DESTUSERNAME@$DESTHOSTNAME:$DESTPATH
  rm payload.zip
  ssh $DESTUSERNAME@$DESTHOSTNAME "unzip -o $DESTPATH/payload.zip -d $DESTPATH"
	if ! [ -z ${DESTURL+x} ]; then open $DESTURL; fi
	else
		printf "Initialization file must first be created\r\n";
	fi;
}

# Sync (keep backup) files from my web hosting server
function sync() {
	until rsync -vaP --delete me@hosting.com:/my/cloud/docroot/folder ~/Cloud; do
	  echo Transfer disrupted, retrying in a second...
	  sleep 1
	done
}

# Start Tor and switch the system-wide proxy settings in macOS
function starttor() {
	# 'Wi-Fi' or 'Ethernet' or 'Display Ethernet'
	INTERFACE=$(networksetup -listnetworkserviceorder | grep $(ifconfig | pcregrep -M -o '^[^\t:]+:([^\n]|\n\t)*status: active' | egrep -o -m 1 '^[^\t:]+') | awk -F  "(, )|(: )|[)]" '{print $2}')

	# Ask for the administrator password upfront
	sudo -v
	# Keep-alive: update existing `sudo` time stamp until finished
	while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &

	sudo networksetup -setsocksfirewallproxy $INTERFACE 127.0.0.1 9050 off
	sudo networksetup -setsocksfirewallproxystate $INTERFACE on
	echo "$(tput setaf 64)" # green
	echo "SOCKS proxy 127.0.0.1:9050 enabled."
	echo "$(tput setaf 136)" # orange
	echo "Starting Tor..."
	echo "$(tput sgr0)" # color reset
	tor && stoptor
}

function stoptor() {
	sudo networksetup -setsocksfirewallproxystate $INTERFACE off
	echo "$(tput setaf 64)" #green
	echo "SOCKS proxy disabled."
	echo "$(tput sgr0)" # color reset
}

# Clone and set up a new instance of OctoberCMS
function october() {
	local target_dir="october"
  if [ ! -z "${1}" ]; then
    target_dir="${1}"
  fi;
  echo $target_dir
	git clone -b develop https://github.com/octobercms/october $target_dir
	cd $target_dir
	pushd $(pwd) > /dev/null
	composer install
	git reset --hard origin/develop
	valet link $target_dir
	echo "Set application URL to http://$target_dir.$(valet tld)"
	php artisan october:install
}

# Clone and set up a new instance of OctoberCMS from my forked repo
function myoctober() {
	local target_dir="october"
  if [ ! -z "${1}" ]; then
    target_dir="${1}"
  fi;
  echo $target_dir
	git clone -b develop https://github.com/SaifurRahmanMohsin/october $target_dir
	cd $target_dir
	pushd $(pwd) > /dev/null
	composer install
	git reset --hard origin/develop
	valet link $target_dir
	echo "Set application URL to http://$target_dir.$(valet tld)"
	php artisan october:install
}