.functions

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


# find shorthand
function f() {
    find . -name "$1" 2>&1 | grep -v 'Permission denied'
}


# cd into whatever is the forefront Finder window.
cdf() {  # short for cdfinder
  cd "`osascript -e 'tell app "Finder" to POSIX path of (insertion location as alias)'`"
}


# Start an HTTP server from a directory, optionally specifying the port
function server() {
	local port="${1:-8000}"
	open "http://localhost:${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"
}


# Copy w/ progress
cp_p () {
  rsync -WavP --human-readable --progress $1 $2
}



# get gzipped size
function gz() {
	echo "orig size    (bytes): "
	cat "$1" | wc -c
	echo "gzipped size (bytes): "
	gzip -c "$1" | wc -c
}

# whois a domain or a URL
function whois() {
	local domain=$(echo "$1" | awk -F/ '{print $3}') # get domain from URL
	if [ -z $domain ] ; then
		domain=$1
	fi
	echo "Getting whois record for: $domain …"

	# avoid recursion
					# this is the best whois server
													# strip extra fluff
	/usr/bin/whois -h whois.internic.net $domain | sed '/NOTICE:/q'
}

function localip(){
	function _localip(){ echo "📶  "$(ipconfig getifaddr "$1"); }
	export -f _localip
	local purple="\x1B\[35m" reset="\x1B\[m"
	networksetup -listallhardwareports | \
		sed -r "s/Hardware Port: (.*)/${purple}\1${reset}/g" | \
		sed -r "s/Device: (en.*)$/_localip \1/e" | \
		sed -r "s/Ethernet Address:/📘 /g" | \
		sed -r "s/(VLAN Configurations)|==*//g"
}

# Extract archives - use: extract <file>
# Based on http://dotfiles.org/~pseup/.bashrc
function extract() {
	if [ -f "$1" ] ; then
		local filename=$(basename "$1")
		local foldername="${filename%%.*}"
		local fullpath=`perl -e 'use Cwd "abs_path";print abs_path(shift)' "$1"`
		local didfolderexist=false
		if [ -d "$foldername" ]; then
			didfolderexist=true
			read -p "$foldername already exists, do you want to overwrite it? (y/n) " -n 1
			echo
			if [[ $REPLY =~ ^[Nn]$ ]]; then
				return
			fi
		fi
		mkdir -p "$foldername" && cd "$foldername"
		case $1 in
			*.tar.bz2) tar xjf "$fullpath" ;;
			*.tar.gz) tar xzf "$fullpath" ;;
			*.tar.xz) tar Jxvf "$fullpath" ;;
			*.tar.Z) tar xzf "$fullpath" ;;
			*.tar) tar xf "$fullpath" ;;
			*.taz) tar xzf "$fullpath" ;;
			*.tb2) tar xjf "$fullpath" ;;
			*.tbz) tar xjf "$fullpath" ;;
			*.tbz2) tar xjf "$fullpath" ;;
			*.tgz) tar xzf "$fullpath" ;;
			*.txz) tar Jxvf "$fullpath" ;;
			*.zip) unzip "$fullpath" ;;
			*) echo "'$1' cannot be extracted via extract()" && cd .. && ! $didfolderexist && rm -r "$foldername" ;;
		esac
	else
		echo "'$1' is not a valid file"
	fi
}

# who is using the laptop's iSight camera?
camerausedby() {
    echo "Checking to see who is using the iSight camera… 📷"
    usedby=$(lsof | grep -w "AppleCamera\|USBVDC\|iSight" | awk '{printf $2"\n"}' | xargs ps)
    echo -e "Recent camera uses:\n$usedby"
}


# animated gifs from any video
# from alex sexton   gist.github.com/SlexAxton/4989674
gifify() {
  if [[ -n "$1" ]]; then
    if [[ $2 == '--good' ]]; then
      ffmpeg -i $1 -r 10 -vcodec png out-static-%05d.png
      time convert -verbose +dither -layers Optimize -resize 900x900\> out-static*.png  GIF:- | gifsicle --colors 128 --delay=5 --loop --optimize=3 --multifile - > $1.gif
      rm out-static*.png
    else
      ffmpeg -i $1 -s 600x400 -pix_fmt rgb24 -r 10 -f gif - | gifsicle --optimize=3 --delay=3 > $1.gif
    fi
  else
    echo "proper usage: gifify <input_movie.mov>. You DO need to include extension."
  fi
}

# turn that video into webm.
# brew reinstall ffmpeg --with-libvpx
webmify(){
	ffmpeg -i $1 -vcodec libvpx -acodec libvorbis -isync -copyts -aq 80 -threads 3 -qmax 30 -y $2 $1.webm
}


# visual studio code. a la `subl`
code () {
    if [[ $# = 0 ]]
    then
        open -a "Visual Studio Code"
    else
        [[ $1 = /* ]] && F="$1" || F="$PWD/${1#./}"
        open -a "Visual Studio Code" --args "$F"
    fi
}

# `shellswitch bash`
# `shellswitch zsh`
shellswitch () {
	chsh -s $(brew --prefix)/bin/$1
}