#!/bin/bash

abort() {
	echo $1
	exit 1
}

cmd="$1"
shift

zit_setup() {
	ZIT_FILE="$1"
	shift
	test -f $ZIT_FILE || abort "No such file $ZIT_FILE"
	test $ZIT_FILE = "`basename $ZIT_FILE`" || abort "Sorry, Zit only works on files in the current directory"
	ZIT_DIR=".zit.$ZIT_FILE"
}

zit_init() {
	zit_setup $1
	test -e $ZIT_DIR && abort "$ZIT_DIR exists, is $ZIT_FILE tracked already?"
	mkdir $ZIT_DIR && echo "Initializing Zit repository in $ZIT_DIR"
	test -d $ZIT_DIR || abort "Failed to create $ZIT_DIR"
	cd $ZIT_DIR
	git init || abort "Failed to initialize Git repository in $ZIT_DIR" 
	ln ../$ZIT_FILE $ZIT_FILE || abort "Failed to link $ZIT_FILE into $ZIT_DIR"
	git add $ZIT_FILE || abort "Failed to add $ZIT_FILE"
	git commit "$@" || abort "Failed to make first commit for $ZIT_FILE"
}

zit_list() {
	for file in `find -path ./.zit.\*/.git`; do
		export GIT_DIR="$file"
		file="${file#./.zit.}"
		file="${file%/.git}"
		# TODO show actual file status
		git ls-files -t $file
	done;
}

case $cmd in
	init)
	zit_init $1
	;;
	list)
	zit_list
	;;
esac