/***
the resource to which all the paths will refer.
will be the downcased pluralized form
eg: users or admins
***/
var resource = null;


/***
the resource singular form
eg: user
***/
var resource_singular = null;


/****
looks for a div with the id "sign_out", if its present, then returns true, otherwise false
*****/
function user_signed_in(){
	return $("#sign_out").length > 0 ? true : false;
}

/*****
sends a get request to the particular controller.

******/
function load_forms(name){
	if(name === "sign_in_sign_up"){
		$.get(
			{url : window.location.origin + "/"+ resource +"/sign_in",
			 success : function( data ) {},
			 dataType : "script"
			});
	}
	else if(name === "forgot_password"){
		$.get(
		{url : window.location.origin + "/" + resource + "/password/new",
		 success : function(data){},
		 dataType : "script"});
	}

	else if(name === "resend_confirmation_email"){
		$.get(
		{url : window.location.origin + "/" + resource + "/confirmation/new",
		 success : function(data){},
		 dataType : "script"});
	}
	else if(name == "unlock_account"){
		$.get(
		{url : window.location.origin + "/" + resource + "/unlock/new",
		 success : function(data){},
		 dataType : "script"});	
	}
}


function open_sign_in_modal_if_closed(){
	
	if($('#sign_in_needed_modal').is(':visible')){

	}
	else{
		$("#sign_in_needed_modal").openModal({});
	}
}

/****
callback used to target events that need to be protected by sign in.
****/
function sign_in_required(event){
	if(user_signed_in()){
		//console.log("user signed in");
		return false;
	}
	else{
		//console.log("user not signed in");
		if(!!event){
			//console.log("stopping propagation");
			event.preventDefault();
			event.stopPropagation();
			event.stopImmediatePropagation();
		}
		load_forms("sign_in_sign_up");
		return true;
	}
}

var set_sign_in_modal = function(){
	//on clearing the 
	$("#sign_in_needed_modal").leanModal({
		dismissible: true, 
	    opacity: .5, 
		in_duration: 300, 
		out_duration: 200,
		after_close: function(options){
			
		}
	});

}

//NAV OPTIONS.

/***
basically the following block handles making the ajax request and
then loading the form for 
sign_up
sign_in
forgot_password
unlock_account
resend_confirmation_email.
basically they all make calls to load_forms, which does the ajax call

***/
$(document).on('click','#show_sign_up',function(event){
	var current_screen = get_current_screen();
	if(current_screen === "Forgot Password" || current_screen === "Resend Confirmation Email"){
		load_forms("sign_in_sign_up");
	}
	else if(current_screen === "Sign In" || current_screen === "Sign Up"){
		toggle_sign_in_sign_up();
	}
});

$(document).on('click','#forgot_password',function(event){
	load_forms("forgot_password");
});

$(document).on("click","#unlock_account",function(event){
	load_forms("unlock_account");
})

$(document).on('click','#resend_confirmation_email',function(event){
	load_forms("resend_confirmation_email");
});

/***
for the update form, where we give them an option to directly resend the unconfirmed email.
suppose that it could not be found then what happens.
***/
$(document).on('click','.resend_confirmation_email',function(event){
	//this element should have the data-attribute called unconfirmed email already set on it., and ajax request has to be made POST, to the confirmations path, using that email, and the correct resource_param name.
	var unconfirmed_email = $("#" + resource_singular + "_unconfirmed_email").attr("data-unconfirmed-email");
	var param = resource_singular + "[email]";
	var data_h = {};
	data_h[param] = unconfirmed_email;
	$.get(
		{url : window.location.origin + "/"+ resource +"/confirmation",
		 data : data_h,
		 success : function( data ) {},
		 dataType : "script",
		 method : "POST"
		}
	);
});

/***
for the update form, the part where we give the option to directly resend the additional_login_param confirmation should be done in the daughter app,see dummy/app/assets/application.js
***/

/****
show or hide the oauth icons and 
****/
var toggle_oauth = function(){
	$('#oauth_icons').toggle();
	$("#submit").toggleClass("l6 m6 s6 p-0-left p-0-right").toggleClass("l12 m12 s12 center");	
	$("#submit_icon").toggleClass("right");
}

var hide_oauth = function(){
	$('#oauth_icons').hide();
	$('#submit').removeClass("l6 m6 s6 p-0-left p-0-right").addClass("l12 m12 s12 center");
	$('#submit_icon').removeClass('right');
}

var show_oauth = function(){
	$('#oauth_icons').show();
	$('#submit').addClass("l6 m6 s6 p-0-left p-0-right").removeClass("l12 m12 s12 center");
	$('#submit_icon').addClass('right');	
}

/***
This changes the text in the navigation options 
below the form.
It will by default make the text "Dont have an Account...."
otherwise, it will make the text whatever is in new_text.
***/
var toggle_sign_up_text = function(new_text){
	var sign_up_text = $("#show_sign_up").text();
	if(new_text != null){
		$("#show_sign_up").text(new_text);
		return;
	}
	$("#show_sign_up").text(sign_up_text == "Don't have an Account? Sign Up For Free" ? "Already Have An Account? Sign In" : "Don't have an Account? Sign Up For Free");
}

/***
***/
var toggle_sign_in_sign_up = function(){
	$('#sign_up_inputs').toggle();
	$('#sign_up_inputs').toggleClass('m-20-bottom');
	var login_title_text = $('#login_title').text();
    $('#login_title').text(
        login_title_text == "Sign In" ? "Sign Up" : "Sign In");
    toggle_oauth();
    toggle_sign_up_validation($('#login_title').text());
    toggle_sign_up_text();
}

var credential_exists = function(def,e,field_id){
	var res = {
		"url": "/profiles/credential_exists",
		"dataType":"json",
		"data":{
			"credential":{
				"resource":resource,
				"email":$("#" + field_id).val()
			}
		}
	}
	return res;
}

var toggle_sign_up_validation = function(login_text){
	if(login_text == "Sign In"){
	  //function should be defined in the daughter app
	  //it is currently defined in dummy/app/assets/javascripts/application.js
	  validator.args = validation_toggle_on_sign_in();
	  validator.register_handlers();
	}
	else
	{
	  validator.args = validation_toggle_on_sign_up();
	  validator.register_handlers(); 
	}
	
}

/****
if the sign in modal is open, then this returns the text in the 
login_title div.
if the sign in modal is not open, then this will return 
****/
var get_current_screen = function(){
	//if the modal is open then 
	if($('#sign_in_needed_modal').is(':visible')){
		return $('#login_title').text();
	}
	else{
		return $("#page_title").text();
	}
}

/****
provide the input id without the hash.
****/
var invalidate_input_field = function(input_id,error_message,add_error_message){
	
	add_error_message = add_error_message || true;
	var input = $("#" + input_id);
	var label = $('label[for="'+ input_id +'"]');
	input.attr("class","invalid");
	input.attr("aria-invalid",true);
	if(add_error_message){
		if($(label).length > 0){
			label.attr("data-error",error_message);
		}
		else{
			show_modal_error_message(error_message);
		}
	}
}

/*****
focus on the first invalid field.
@args:
resource : resource.
*****/
var focus_first_invalid_field = function(resource){

}

/***
provide the input id without the hash.
***/
var make_input_field_valid = function(input_id){
	//provided that the field is not empty.
	if($("#" + input_id).val()){
		$("#" + input_id).removeClass("invalid").addClass("valid");
		$("#" + input_id).attr("aria-invalid",false);
		$('label[for="' + input_id + '"]').removeClass("invalid").addClass("valid");
		//remove the aria invalid from the label.
		$('label[for="' + input_id + '"]').attr('aria-invalid',false);
		//remove the data-error attribute.
		$('label[for="' + input_id + '"]').removeAttr('data-error');
	}
}

var mark_all_input_fields_valid = function(){
	yield_input_fields(function(field_name,field_jq_obj){
		make_input_field_valid(field_jq_obj.attr("id"));
	});
}

/***
yields all the input fields of the form to a function called operation.
operation should accept two arguments(field_name, and a jquery object representing the input field)
***/
var yield_input_fields = function(operation){
	$("#login_form").find("input").each(function(index){
         
         if($(this).attr("id") != null && $(this).attr("id").indexOf("_") != -1){
            
            var field_name = ($(this).attr("id").split("_")).pop().toLowerCase();

            operation(field_name,$(this));
        }
    });
}

/***
here first we make each field valid, and then only invalidate the ones whose names are mentioned in the error message.
***/
var mark_invalid_fields_on_sign_in_failure = function(error){
	yield_input_fields(function(field_name,field_jq_obj){
		make_input_field_valid(field_jq_obj.attr("id"));
        if(error.toLowerCase().indexOf(field_name) != -1){
           //invalidate it, show the error in the error notification box.
           invalidate_input_field(field_jq_obj.attr("id"),null,false);
        }
	});
	
}

/***
clears the input field value and makes it and its label neither valid nor
invalid.
***/
var normalize_input_field = function(input_id){
	//if the error is with the email, clear the password
	$("#" + input_id).val('');
	//remove its class as being either valid or invalid
	$('label[for="' + input_id + '"]').removeClass("valid invalid");
	//its aria-invalid, should be false.
	$('label[for="' + input_id + '"]').attr('aria-invalid',false);
	//remove the data-error.
	$('label[for="' + input_id + '"]').removeAttr('data-error');
}


function tryParseJSON (jsonString){
    try {
        var o = JSON.parse(jsonString);

        // Handle non-exception-throwing cases:
        // Neither JSON.parse(false) or JSON.parse(1234) throw errors, hence the type-checking,
        // but... JSON.parse(null) returns null, and typeof null === "object", 
        // so we must check for that, too. Thankfully, null is falsey, so this suffices:
        if (o && typeof o === "object") {
            return o;
        }
    }
    catch (e) { }

    return false;
};

/****
show generic error message.
leanmodal modification has been modified to clear any error message when
the modal is closed
refer to leanModal_modification.js
****/
var show_modal_error_message = function(error_message){
   //console.log("came to show modal error message");
   if(!error_message){
		error_message = "Your request didn't go through, try again in some time.";
   }
   //open the error notification modal if no modal is open
   if($(".modal:visible").length == 0){
   	toggle_ajax_error_modal();
   }
   $(".modal:visible").find(".error_notification").show();
   //check if the error message is valid json and if yes, then 
   //does it have an errors key
   //if yes, show that as the error.
   var json = tryParseJSON(error_message);
   if(json && json["errors"]){
   		error_message = json["errors"][0];
   }
   $(".modal:visible").find(".error_message").html(error_message);
}



/***
all the forms in the auth/modals partials have a submit button incorporated normally in them with the id: #login_submit.
however this is hidden by display_none.
Instead the button that is shown has an id of #submit.
So on clicking that we change the action of the form depending on which form is currently being show.(by get_current_screen())
then I trigger a click on ("login_submit")
and that automatically triggers the form_submit.
***/
$(document).on('click','#submit',function(event){
	//if the login text is "Sign_up, then submit the sign_up form"
	//if the login text is "Sign In", then submit the sign_in form"
	var login_type = get_current_screen();
	
	if(login_type == "Sign In"){
		//the url should be 
		$("#login_form").attr("action","/" + resource + "/sign_in");
		$("#login_submit").val("Log In");
		event.preventDefault();
		event.stopPropagation();
		$("#login_submit").trigger("click");
		return false;
	}
	else if(login_type == "Forgot Password"){
		// the name of the form submitted is login_form_password
		// the submit button inside it is still having an id of login_submit.
		// we had to change the id of the form, cuz otherwise it does not trigger remote submit.
		// since the earlier login_form was present on the page.
		event.preventDefault();
		event.stopPropagation();
		$("#login_submit").trigger("click");
		return false;
	}
	else if(login_type == "Resend Confirmation Email"){
		$("#login_form").attr("action","/" + resource + "/confirmation");
		$("#login_submit").val("Resend confirmation instructions");	
		event.preventDefault();
		event.stopPropagation();
		$("#login_submit").trigger("click");
		return false;
	}
	else if(login_type == "Sign Up"){
		$("#login_form").attr("action","/" + resource);
		$("#login_submit").val("Sign Up");
		event.preventDefault();
		event.stopPropagation();
		$("#login_submit").trigger("click");
		return false;
	}
	else if(login_type == "Edit Account Settings"){
		console.log("detected the login type correctly");
		$("#login_form").attr("action","/" + resource);
		$("#login_submit").val("Update");
		event.preventDefault();
		event.stopPropagation();
		$("#login_submit").trigger("click");
		return false;
	}
	else if(login_type == "Unlock Your Account"){
		$("#login_form").attr("action","/" + resource);
		$("#login_submit").val("Update");
		event.preventDefault();
		event.stopPropagation();
		$("#login_submit").trigger("click");
		return false;	
	}
});

/***
on clicking the 'sign_in' option in the nav bar.
***/
$(document).on('click','.sign_in_nav_option,.profile_nav_option,.sign_in',function(event){
	resource = $(event.target).parent().attr("data-resource");
	resource_singular = $(event.target).parent().attr("data-resource-singular");
	console.log("assigned resource as:" + resource);
	sign_in_required(event);
});


$(document).ready(set_sign_in_modal);
$(document).on('page:load', set_sign_in_modal);