'use strict';

/* Filters */

angular.module('netStatsApp.filters', [])
.filter('nodesActiveClass', function() {
	return function(active, total) {
		var ratio = active/total;

		if(ratio >= 0.9)
			return 'text-success';

		if(ratio >= 0.75)
			return 'text-info';

		if(ratio >= 0.5)
			return 'text-warning';

		return 'text-danger';
	};
})
.filter('mainClass', function() {
	return function(node, bestBlock) {
	  	if( ! node.active)
			return 'text-danger';

		if(node.peers === 0)
			return 'text-danger';

		return timeClass(node.block.timestamp);
	};
})
.filter('peerClass', function() {
	return function(peers) {
		return peerClass(peers);
	};
})
.filter('miningClass', function() {
	return function(mining) {
		return (! mining ? 'text-danger' : 'text-success');
	};
})
.filter('miningIconClass', function() {
	return function(mining) {
		return (! mining ? 'icon-cancel' : 'icon-check');
	};
})
.filter('blockClass', function() {
	return function(current, best) {
		return (best - current <= 1 ? 'text-success' : (best - current > 1 && best - current < 4 ? 'text-warning' : 'text-danger'));
	};
})
.filter('timeClass', function() {
	return function(timestamp) {
		return timeClass(timestamp);
	};
});

function peerClass(peers)
{
	return (peers <= 1 ? 'text-danger' : (peers > 1 && peers < 4 ? 'text-warning' : 'text-success'));
}

function timeClass(timestamp)
{
	var time = Math.floor((new Date()).getTime() / 1000);
	var diff = time - timestamp;

	if(diff <= 12)
		return 'text-success';

	if(diff <= 20)
		return 'text-info';

	if(diff <= 30)
		return 'text-warning';

	return 'text-danger';
}