#!/bin/bash

MAKE_PROGRESS_INSTANCE="main"
MAKE_PROGRESS_QDBUS="qdbus name.melnichenko.nikita.make-progress.$MAKE_PROGRESS_INSTANCE"

function createProgress()
{
	PROGRESS_NAME=`$MAKE_PROGRESS_QDBUS / AddItem 'Live' 2>/dev/null`
}

function setProgressProperty()
{
	if [ "$PROGRESS_NAME" == "" ] || [ "$1" == "" ] || [ "$2" == "" ]; then return; fi
	$MAKE_PROGRESS_QDBUS /"$PROGRESS_NAME" Set"$1" "$2" >/dev/null
}

function removeProgress()
{
	if [ "$PROGRESS_NAME" == "" ]; then return; fi
	$MAKE_PROGRESS_QDBUS / RemoveItem "$PROGRESS_NAME" >/dev/null
}

function startProgress()
{
	if [ "$PROGRESS_NAME" == "" ]; then return; fi
	$MAKE_PROGRESS_QDBUS /"$PROGRESS_NAME" SetSpeed 0 >/dev/null
	$MAKE_PROGRESS_QDBUS /"$PROGRESS_NAME" Start >/dev/null
}

function waitForProgress()
{
	if [ "$PROGRESS_NAME" == "" ]; then return; fi
	local state=`$MAKE_PROGRESS_QDBUS /"$PROGRESS_NAME" IsStarted 2>/dev/null`
	while [ "$state" == "false" ]
	do
		sleep 1
		state=`$MAKE_PROGRESS_QDBUS /"$PROGRESS_NAME" IsStarted 2>/dev/null`
	done
}

function processObject()
{
	echo "Processing $1..."
	sleep 1
}

objects=( "aaa"  "bbb"  "ccc"  "ddd"  "eee"  "fff"  "ggg" )
n=${#objects[@]}

createProgress

echo "Progress name: $PROGRESS_NAME"
echo "Number of objects to process: $n"
setProgressProperty "Maximum" $n
setProgressProperty "Value" 0
startProgress
for ((i = 0; i < n; i++))
do
	waitForProgress
	processObject "${objects[$i]}"
	setProgressProperty "Value" $((i+1))
done

echo "Done. Delaying progress removal..."
sleep 5 && removeProgress