"use strict";

function set_active_window(win_id)
{

    var win_z_index = null;
    var is_minimized = null;

    global_active_window = document.getElementById(win_id);
    global_active_window_id = win_id;
    //global_active_window.style.boxShadow = "3px 3px 6px 6px #333333";

    if (global_active_window != null)
    {
        is_minimized = global_active_window.getAttribute("data-is_minimized");
        if (is_minimized === "true") {
            ////global_active_window.style.boxShadow = global_hide_window_dropshadow;
            ////global_active_window.style.boxShadow = global_inactive_window_dropshadow;// global_hide_window_dropshadow;
        }
        else {
            global_active_window.style.boxShadow = global_active_window_dropshadow;
        }

        //enable_entire_window(global_active_window.id);

        //console.log("Global Active Window: " + global_active_window_id);

        //this code calls functions in show_window_details.js
        /*
        if (options_menu_showing(win_id) == true) {
            update_details(win_id);
        }
        */

        global_active_window_loc_x = parseFloat(global_active_window.style.left);
        global_active_window_loc_y = parseFloat(global_active_window.style.top);

        global_active_window_offsetWidth = parseFloat(global_active_window.offsetWidth);
        global_active_window_offsetHeight = parseFloat(global_active_window.offsetHeight);

        move_to_front(win_id);

        //block the contents container of each web window to prevent interaction


        block_all_window_content_containers();
        unblock_window_content_container(win_id);

        global_window_mode = "active";

        //turn_blue_fade_white(global_active_window_id);

        //2024-07-16:
        //for every open window, check to see if its option menu is showing.
        //if the options menu is showing, update all options data.
        //see file: 'show_window_details.js'.
        update_all_window_details_menus();

        //2024-07-16:
        //set an HTML attribute in each open window's HTML
        //indicating whether it is currently the 'global_active_window'
        //see file: 'show_window_details.js'.
        set_is_global_active_window_attribute(win_id);

        //console.log("New Active Window:" + global_active_window.id);
        return global_active_window.id;
    }
    else
    {
        return false;
    }

    

}


//function enable_active_window() {
//    enable_entire_window(global_active_window.id);  
//}

//function disable_windows() {
//    var web_windows = null;
//    var win = null;
//    var i = null;

//    web_windows = document.getElementsByName("web_window");
//    for (i = 0; i < web_windows.length; i++) {
//        win = web_windows[i];
//        disable_entire_window(win.id);
//    }
//}

function deactivate_global_active_window()
{
    var active_window = null;
    var active_win_id = null;
    var win_obj = null;
    var is_minimized = null;
    var win_id = null;

    //disable_entire_window(global_active_window.id);

    active_win_id = global_active_window_id;
    win_obj = document.getElementById(active_win_id);

    //alert(global_active_window_id);
    if (win_obj != null)
    {
        win_id = win_obj.id;

        title_to_white(win_obj.id);
        global_active_window.style.opacity = global_window_opacity;
        //win_obj.style.boxShadow = "none";

        is_minimized = win_obj.getAttribute("data-is_minimized");
        if (is_minimized === "true") {
            ///win_obj.style.boxShadow = global_hide_window_dropshadow;
        }
        else {
            win_obj.style.boxShadow = global_inactive_window_dropshadow;
        }

        //win_obj.style.boxShadow = global_inactive_window_dropshadow;
        set_window_title_white(win_obj.id);

        global_active_window = null;
        global_active_window_id = null;
        global_active_window_loc_x = null;
        global_active_window_loc_y = null;
        global_active_window_offsetHeight = null;
        global_active_window_offsetWidth = null;
        global_window_mode = "standby";

        win_obj = null;
    }

    //2024-07-16:
    //for every open window, check to see if its option menu is showing.
    //if the options menu is showing, update all options data.
    //see file: 'show_window_details.js'.
    update_all_window_details_menus();

    //2024-07-16:
    //set an HTML attribute in each open window's HTML
    //indicating whether it is currently the 'global_active_window'.
    //in this case, it should set all open windows to be inactive (false).
    //the "none" argument to inactivate all open windows.
    set_is_global_active_window_attribute();

    return global_active_window_id;
}


/*
function set_active_window(win_id)
{

    var win = null;


    win = document.getElementById(win_id);
    global_active_window = win;
    global_active_window_id = win.id;
    global_active_window_left = parseFloat(win.style.left);
    global_active_window_top = parseFloat(win.style.top);
    global_active_window_width = parseFloat(win.style.width);
    global_active_window_height = parseFloat(win.style.height);
    //move_to_front(win.id);
    //set_active_window_params();
    //get_top_window_z_index();
    return global_active_window_id;
}


function get_active_window()
{
    if (global_active_window != null)
    {
        return global_active_window;
    }
    else
    {
        return false;
    }
}
*/

/*

function deselect_active_window()
{
    global_active_window_id = null;
    global_active_window_left = null;
    global_active_window_top = null;
    global_active_window_width = null;
    global_active_window_height = null;
    return null;
}

*/

/*
function set_active_window_params()
{
    if (global_active_window != null)
    {
        global_active_window_top = parseFloat(global_active_window.style.top);
        global_active_window_left = parseFloat(global_active_window.style.left);
        global_active_window_width = parseFloat(global_active_window.style.width);
        global_active_window_height = parseFloat(global_active_window.style.height);
        global_active_window_id = global_active_window.id;
        return true;
    }
    else
    {
        return false;

    }
}

*/


function get_z_index(elem_id)
{

    var elem = null;
    var z = null;

    elem = document.getElementById(elem_id);
    z = parseFloat(elem.style.zIndex);
    if (z > 0)
    {
    return z;
    }
    else
    {
    return null;
    }
}


/*
function move_to_front(elem_id) //remember, desktop object has z-index of 0. all web windows created are 'stacked' upon the dekstop.
{
    var elem = null;
    var z_index = null;

    elem = document.getElementById(elem_id);

    z_index = get_top_window_z_index();
    if (z_index > -1 && typeof z_index == "number")
    {
        z_index = (parseFloat((z_index)) + 1);
        elem.style.zIndex = parseInt(z_index);
    }
    else
    {
        web_windows = document.getElementsByName("web_window");
        num_windows = parseFloat(web_windows.length);
        elem.style.zIndex = parseInt(num_windows) + 1;
    }


}


function get_top_window_z_index()
{
    var web_windows = [];
    var i = null
    var num_windows = null;
    var win = null; 
    var top_z = null;


    web_windows = document.getElementsByName("web_window");
    num_windows = parseFloat(web_windows.length);
    top_z = -1;

    for (i = 0; i < num_windows; i++)
    {
        if (i > top_z && typeof top_z == "number")
        {
        top_z = i;
        }
    }

    if (i > -1 && typeof i == "number")
    {
        
        return (i + 2);
    }
    else
    {
        web_windows = document.getElementsByName("web_window");
        num_windows = parseFloat(web_windows.length);
        return (num_windows + 2);
    }
}


function set_z_index(win_id)
{
    var win = null;
    var z_index = null;

    win = document.getElementById(win_id);
    z_index = parseFloat(win.style.zIndex);
    if (z_index > -1 && typeof z_index == "number")
    {
        win.style.zIndex = z_index;
    }
    else
    {
        web_windows = document.getElementsByName("web_window");
        num_windows = parseFloat(web_windows.length);
        z_index = parseInt(num_windows);
        win.style.zIndex = z_index;
    }


}


*/


function move_to_front(win_id)
{
    var top_win_z_index = null;
    var new_z_index = null;
    var win = null;
    win = document.getElementById(win_id);
    top_win_z_index = get_top_window_z_index();
    //alert(top_win_z_index);
    if (top_win_z_index > -1 && win != null)
    {

        new_z_index = parseFloat(top_win_z_index) + 1;
        //  alert("window_z_index: " + win.style.zIndex);
        win.style.zIndex = new_z_index;
        //console.log("Window to Top Z-Index: " + new_z_index);

    }
    else if (top_win_z_index > -1)
    {
        win = document.getElementById(global_active_window_id);
        if (win != null)
        {
            new_z_index = parseFloat(top_win_z_index) + 1;
            // alert("window_z_index: " + win.style.zIndex);
            win.style.zIndex = new_z_index;
            //console.log("Window to Top Z-Index: " + new_z_index);
        }
    }
    else
    {
        // alert("win: " + top_win_z_index);
        win.style.zIndex = 1;
        //console.log("Window to Top Z-Index: 1");
    }

}


function get_top_window_z_index() //gets the z-index value of the top window
{
    var window_collection = null;
    var highest_z_index = null;
    var current_window = null;
    var current_window_z_index = null;
    var new_z_index = null;
    var window_collection_length = null;
    var i = null;


    window_collection = document.getElementsByName("web_window");
    window_collection_length = parseFloat(window_collection.length);

    highest_z_index = 0;

    for (i = 0; i < window_collection_length; i++)
    {
        current_window = window_collection[i];
        current_window_z_index = parseFloat(current_window.style.zIndex);
        if (current_window_z_index > highest_z_index)
        {
            highest_z_index = current_window_z_index;
        }
    }
    return highest_z_index;
}

/*
function disable_wins_enable_active_win() {
    return;
    var web_windows = null;
    var win_id = null;
    var i = null;

    web_windows = document.getElementsByName("web_window");
    //var window_0001 = null;

    for (i = 0; i < web_windows.length; i++) {
        win_id = web_windows[i].getAttribute("id");
        //alert(win_id);
        if (win_id == global_active_window_id) 
        //this window is the active window
        {
            //alert("testing");
            //enable_entire_window(web_windows[i].getAttribute("id"));
            //alert(web_windows[i].innerHTML);
            //alert(web_windows[i].getAttribute("id"));
           // web_windows[i].style.opacity = "1.0";
           
            
        }
        else {
        //the ID of the window does not match the ID of the active window
            web_windows[i].style.opacity = "0.3";
            //disable_entire_window(web_windows[i].getAttribute("id"));
            //get_top_window_z_index();
        }
    }
    enable_entire_window(global_active_window.id);
    global_active_window.style.opacity = global_window_opacity;
}
*/


//2024-07-16:
//set the window's "data-is_global_active_window" attribute
//to indicate that the window is the active window, or not.
//if the 'win_id' argument is not provided by the function
//caller, then it defaults to a string: "none". this string
//will not match the HTML id attribute of any window, thus
//all windows have the HTML attribute set to "false"
function set_is_global_active_window_attribute(win_id = "none") {
    var wins = null;
    var win_count = null;
    var w = null;
    var i = null;

    wins = document.getElementsByName("web_window");
    if (wins !== null) {
        if (wins.length > 0) {
            win_count = wins.length;
            for (i = 0; i < win_count; i++) {
                w = wins[i];
                if (w !== null) {
                    if (global_active_window !== null && win_id !== null) {
                        if (global_active_window.id === win_id) {
                            w.setAttribute("data-is_global_active_window", "true");
                        }
                        else {
                            w.setAttribute("data-is_global_active_window", "false");
                        }
                    }
                    else {
                        w.setAttribute("data-is_global_active_window", "false");
                    }
                }
            }
        }
    }
}



//2024-07-16:
//get the window's "data-is_global_active_window" attribute
//to indicate that the window is the active window, or not.
//if the HTML attribute does not exist, or has an invalid 
//value, then this function returns null;
function get_is_global_active_window_attribute(win_id) {
    var w = null;
    var is_global_active_window = null;

    w = document.getElementById(win_id);
    if (w !== null) {
        is_global_active_window = w.getAttribute("data-is_global_active_window");
        if (is_global_active_window === "true" || is_global_active_window === true) {
            return true;
        }
        else {
            if (is_global_active_window === "false" || is_global_active_window === false) {
                return false;
            }
            else {
                return null;
            }
        }
    }
    else {
        return null;
    }
}