const COMMENTED_OBJECT_TYPE_ARTICLE = 0;
const COMMENTED_OBJECT_TYPE_CONSULTANT = 1;
const COMMENTED_OBJECT_TYPE_BUSINESS = 2;

var script = document.currentScript;
if (!script)
	script = document.getElementById('comments-widget');
var comments_urlParams = new URLSearchParams(window.location.search);

function ReadIntegerParam(param_name)
{
	var result = parseInt(comments_urlParams.get(param_name), 10);	
	if (isNaN(result))
		result = 0;
	return result;
}

var article_id = script.getAttribute('article-id');
var business_id = script.getAttribute('business-id');
var consultant_id = script.getAttribute('consultant-id');

function GetCommentedObjectID()
{
	let objectType = GetCommentedObjectType();
	switch (objectType)
	{
		case COMMENTED_OBJECT_TYPE_BUSINESS: return business_id; 
		case COMMENTED_OBJECT_TYPE_CONSULTANT: return consultant_id; 
	}
	return article_id;
}

function GetCommentedObjectType()
{
	if (business_id > 0)
		return COMMENTED_OBJECT_TYPE_BUSINESS;
	if (consultant_id > 0)
		return COMMENTED_OBJECT_TYPE_CONSULTANT;
	return COMMENTED_OBJECT_TYPE_ARTICLE;
}

var comments_lang = script.getAttribute('lang');
if (comments_lang == "zh-cn")
	comments_lang = "zh";

var comments_element_id = script.getAttribute('article-comments-control');
var comments_rating_element_id = script.getAttribute('article-rating-control');
var comments_widget_version =  script.getAttribute('article-comments-version');
if ((!comments_widget_version) ||
	(comments_widget_version == ""))
{
	comments_widget_version = 1;
}
var hide_avatars = script.getAttribute('hide-avatars');


function LoadCommentsBlock()
{
	if ($("#" + comments_element_id).length > 0)
	{
		$.ajax({
			type: "POST",
			url: "/comments_widget.php",
			data: {
				"article_id": GetCommentedObjectID(), 
				"type": GetCommentedObjectType(), 
				"hide_avatars": hide_avatars,				
				"version": comments_widget_version,
				"location_url": window.location.href,
				"lang": comments_lang
			},	
			success: function (response) 
			{	
				// console.log(response);
				if (response != "")
				{
					$("#" + comments_element_id).html(response);					
					var goto_cooments_block = (comments_urlParams.get('comments_block') == "1");	
					if (goto_cooments_block)
						GoToCommentsBlock();					
					else
					{						
						if (ReadIntegerParam('reply_to_comment_id') > 0)
							OnReplyToCommentClick(ReadIntegerParam('reply_to_comment_id'), true);
						else if (ReadIntegerParam('comment_id') > 0)
							OnReplyToCommentClick(ReadIntegerParam('comment_id'), false);
					}					
				}
				if (comments_rating_element_id)
					$("." + comments_rating_element_id).show();			
			},
			error: function (thrownError) 
			{
				// do nothing
			}	
		});
	}
}

function LoadCommentsRatingBlock()
{	
	if ((comments_rating_element_id) &&
		($("." + comments_rating_element_id).length > 0))
	{		
		var script_path = location.href.substring(0, location.href.lastIndexOf("/"));
		$.ajax({
			type: "POST",
			url: "/comments_widget.php",
			data: {
				"article_id": GetCommentedObjectID(), 
				"type": GetCommentedObjectType(), 					
				"version": comments_widget_version,
				"mode": "generate_rating_block",
				"lang": comments_lang,
				"caller_script": script_path
			},	
			success: function (response) 
			{					
				if (response != "")
				{
					$("." + comments_rating_element_id).html(response);						
					if (typeof PrepareCommentRatings == 'function') 
					{						
						PrepareCommentRatings(); 
					}
				}
			},
			error: function (thrownError) 
			{
				// do nothing
			}	
		});
	}
}


function LoadArticleGoogleAggregateRating()
{
	$.ajax({
		type: "POST",
		url: "/comments_widget.php",
		data: {
			"article_id": GetCommentedObjectID(), 
			"type": GetCommentedObjectType(), 
			"version": comments_widget_version,
			"mode": "generate_aggregate_rating_ajax",
			"lang": comments_lang
		},	
		success: function (response) 
		{						
			if ((response) &&
				(response.trim() != ""))
			{				
				var aggregate_rating_script = document.createElement('script');
				aggregate_rating_script.setAttribute('type', 'application/ld+json');
				aggregate_rating_script.text = response;				
				document.head.appendChild(aggregate_rating_script);				
			}
		},
		error: function (thrownError) 
		{
			// do nothing
		}	
	});
}

function isPageOfType(pageType)
{
	const documentURL = new URL(window.location.href);
	const documentParams = new URLSearchParams(documentURL.search);
	const isPageOfTypeStr = documentParams.get(pageType) || "";		
	let result = (window.location.href.indexOf("/" + pageType + "/") >= 0);
	result = result || (isPageOfTypeStr === "1");
	return result;	
}

function isVacancyPage()
{
	return isPageOfType("vacancy");
}

function isInstitutionPage()
{
	return isPageOfType("university");
}

function shouldLoadWidgetContent()
{
	let result = (article_id > 0);
	result = result || (consultant_id > 0);	
	result = result || (business_id > 0);	
	result = result && (!isVacancyPage());
	result = result && (!isInstitutionPage());	
	return result;
}


if (shouldLoadWidgetContent())
{						
	LoadCommentsBlock();			
	LoadCommentsRatingBlock();
	LoadArticleGoogleAggregateRating();	
}