"use strict";

/***************************************************************************************/
/***************************************************************************************/
//THIS SCRIPT IS USED FOR EXPERIMENTING.
//IT SERVES NO FUNCTIONALITY IN THE WEB APPLICATION.
//IT'S USED MAINLY FOR TESTING PURPOSES.
/***************************************************************************************/
/***************************************************************************************/


//EXPERIMENT 1
/***************************************************************************************/
/*** TRYING TO FIDGURE OUT IF IT'S POSSIBLE TO MAKE THUMBNAIL IMAGES OF WEB WINDOWS ****/
/***************************************************************************************/
/*
import { html2canvas } from 'html2canvas'

function screenshot1() {
    const screenshotTarget = document.body;

    html2canvas(screenshotTarget).then((canvas) => {
        const base64image = canvas.toDataURL("image/png");
        window.location.href = base64image;
    });
}
*/
/*******************************************************************************************/
/*** END TRYING TO FIDGURE OUT IF IT'S POSSIBLE TO MAKE THUMBNAIL IMAGES OF WEB WINDOWS ****/
/*******************************************************************************************/



//EXPERIMENT 2
/*********************************************************************/
/*** FETCH ALL JAVASCRIPT FILES, APPEND THEM, AND DISPLAY AS TEXT ****/
/*********************************************************************/

async function start_code_analysis() {
    var all_js = null;
    var js_lines_array = [];
    var function_names_array = [];
    var js_textarea = null;
    var textarea_js = null;
    var i = null;

    all_js = await get_all_js();
    js_lines_array = await split_all_javascript_text(all_js);
    make_source_textarea();
    js_textarea = get_source_textarea();

    if (js_textarea !== null) {
        ////js_textarea.innerText = "mmoo0oo0!";
        clear_textarea_text("all_javascript_textarea");
        ////alert(js_lines_array.toString());
        function_names_array = get_js_function_names(js_lines_array);
        //textarea_js = encodeURI(function_names_array).join("%0D%0A");
        ////alert(Array.isArray(js_lines_array));
        for (i = 0; i < function_names_array.length; i++) {
            textarea_js = function_names_array[i];
            textarea_js = encodeURI(textarea_js) + "%0D%0A";
            textarea_js = decodeURI(textarea_js);
            console.log(textarea_js);
            
            append_textarea_text("all_javascript_textarea", textarea_js);
        }

    }
}

async function get_all_js() {
    var js_objects = null;
    var js_obj = null;
    var js_objects_length = null;
    var i = null;
    var js_path = null;
    var script_content = null;
    var text_storage = null;
    var all_js = null;
    var js_lines_array = [];

    all_js = "";

    js_objects = document.getElementsByName("native_javascript"); //GET ARRAY OF JAVASCRIPT OBJECTS IN THE PAGE
    /*text_storage = document.createElement("textarea"); //CREATE A TEXTAREA ELEMENT TO STORE RAW JAVASCRIPT TEXT
    text_storage.setAttribute("id", "all_javascript_textarea");
    text_storage.style.position = "absolute";
    text_storage.style.top = "0";
    text_storage.style.left = "0";
    text_storage.style.width = "calc(100% - 7px)";
    text_storage.style.height = "calc(100% - 7px)";
    text_storage.style.fontFamily = "Monospace";
    text_storage.style.fontSize = "11pt";*/
    ////text_storage.style.display = "none";

    if (js_objects !== null) {
        js_objects_length = js_objects.length; //CHECK IF WE HAVE MORE THAN 0 SCRIPT OBJECTS
        for (i = 0; i < js_objects_length; i++) {
            js_obj = js_objects[i]; //GET INDIVIDUAL JAVASCRIPT OBJECT
            if (js_obj !== null) {
                js_path = js_obj.getAttribute("src"); //GET THE URL OF THE JAVASCRIPT FILE ON THE SERVER
                script_content = await fetch_javascripts_0001(js_path); //FETCH JAVASCRIPT DATA 
                ////text_storage.value = text_storage.value + script_content; //APPEND JAVASCRIPT DATA INTO THE TEXTAREA INPUT
                all_js = all_js + script_content;
            }
        }
    }
    //document.body.innerText = text_storage.value.replace(/[\r\n]/gm, ''); //ESCAPE LINE BREAKS
    ///document.body.innerText = text_storage.value; //ESCAPE LINE BREAKS
    /*if (document.getElementById("all_javascript_textarea") !== null) {
    }
    else {
        //document.body.appendChild(text_storage);
    }*/

    //js_lines_array = split_all_javascript_text(all_js);
    //get_js_function_names(js_lines_array);
    //make_stats_textarea();
    //clear_textarea_text("javascript_stats_textarea");
    //function_names_array = get_js_function_names(js_lines_array);
    //function_names = function_names_array.toString();
    //append_textarea_text("javascript_stats_textarea", function_names);
    ////place_function_names_text(js_lines_array);

    return all_js;
}


//FUNCTION TO FETCH A JAVASCRIPT FILE'S CONTENT
async function fetch_javascripts_0001(url) {
    let d = await fetch(url, {
        method: "GET",
        headers: {
            "Content-Type": "text/plain;charset=UTF-8"
        }
    });
    let t = await d.text();
    return t;
}

/*********************************************************************/
/*** END FETCH ALL JAVASCRIPT ****************************************/
/*********************************************************************/


//splits all the javascript into an array of lines
async function split_all_javascript_text(js_text = "") {
    var js_txt = null;
    var js_lines_array = [];

    js_txt = await js_text;
    if (typeof js_txt === "string") {
        if (js_txt.length >= 0) {
            if (encodeURI(js_txt).indexOf("%0D%0A") > -1.0) {
                js_lines_array = encodeURI(js_txt).split("%0D%0A");
            }
            else {
                js_lines_array.push(js_text);
            }
        }
    }
    return js_lines_array;
}

/*
function place_function_names_text(all_js_lines_array = []) {
    var js_lines_array = [];
    var function_names_array = [];
    var function_names = null;

    js_lines_array = all_js_lines_array;
    if (Array.isArray(js_lines_array) === true) {
        make_stats_textarea();
        clear_textarea_text("javascript_stats_textarea");
        function_names_array = get_js_function_names(js_lines_array);
        function_names = function_names_array.toString();
        append_textarea_text("javascript_stats_textarea", function_names);
    }
    else {
    }
    //js_lines_array = analyze_all_javascript(all_js);
    //make_stats_textarea();
    //clear_textarea_text("javascript_stats_textarea");
    //function_names_array = get_js_function_names(js_lines_array);
    //function_names = function_names_array.toString();
    //append_textarea_text("javascript_stats_textarea", function_names);
}
*/

//2024-11-22:
//gets every function name and writes it to the console.
//if the function is anonymous, then 'anonymous function'
//is written to the console log. currently, there are 1412
//functions in total, out of 38000 lines of javascript
//with each function having an average of 29 lines of code.
function get_js_function_names(js_lines_array = []) {
    var line_array = [];
    var i = null;
    var array_length = null;
    var line_string = null;
    var function_count = null;
    var function_names = [];

    function_count = 0;
    line_array = js_lines_array;

    if (Array.isArray(line_array) === true) {
        if (line_array.length >= 0) {
            array_length = line_array.length;
            for (i = 0; i < array_length; i++) {
                if (typeof line_array[i] === "string") {
                    if (line_array[i].length >= 0) {
                        line_string = line_array[i];
                        if (line_string.indexOf("function") > -1.0 && line_string.substring(0, 8) === "function") {
                            if (line_string.indexOf("(") > -1.0) {
                                function_count++;
                                function_names.push(decodeURI(line_string).substring(9, decodeURI(line_string).indexOf("(")));
                                ////console.log(decodeURI(line_string).substring(9, decodeURI(line_string).indexOf("(")));
                            }
                        }
                        else {
                            if (line_string.indexOf("function%20(") > -1.0) {
                                ////console.log("anonymous function");
                                ////function_names.push("anonymous function");
                                ////function_count++;
                            }
                        }
                    }
                }
            }
        }
    }
    ////console.log("number of functions in total: " + function_count);
    ////return function_count;
    return function_names;
}


function clear_textarea_text(textarea_id = null) {
    var text_area = null;

    text_area = document.getElementById(textarea_id);
    if (text_area !== null) {
        ////text_area.value = "";
        text_area.innerHTML = "";
    }
}


function append_textarea_text(textarea_id = null, js_text = "") {
    var text_area = null;

    text_area = document.getElementById(textarea_id);
    if (text_area !== null) {
        ////text_area.value = text_area.value + js_text;
        text_area.innerHTML = text_area.innerHTML + js_text;
    }
}

/*
function make_stats_textarea() {
    var text_area = null;

    text_area = document.getElementById("javascript_stats_textarea");
    if (text_area !== null) {
    }
    else {
        text_area = document.createElement("textarea"); //CREATE A TEXTAREA ELEMENT TO STORE RAW JAVASCRIPT TEXT
        text_area.setAttribute("id", "javascript_stats_textarea");
        text_area.style.position = "absolute";
        text_area.style.top = "0";
        text_area.style.left = "0";
        text_area.style.width = "calc(100% - 7px)"; ////(parseFloat(window.innerWidth) - 20) + "px";
        text_area.style.height = "calc(100% - 7px)"; ////(parseFloat(window.innerHeight) - 20) + "px";
        text_area.style.fontFamily = "Monospace";
        text_area.style.fontSize = "11pt";
        text_area.style.display = "block";
        document.body.appendChild(text_area);
    }
}
*/

function get_source_textarea() {
    var source_textarea = null;

    source_textarea = document.getElementById("all_javascript_textarea");
    if (source_textarea !== null) {
    }
    else {
        source_textarea = make_source_textarea();
    }
    return source_textarea;
}


function make_source_textarea() {
    var source_textarea = null;
    var text_storage = null;

    source_textarea = document.getElementById("all_javascript_textarea");
    if (source_textarea !== null) {
        text_storage = source_textarea;
    }
    else {
        text_storage = document.createElement("textarea"); //CREATE A TEXTAREA ELEMENT TO STORE RAW JAVASCRIPT TEXT
        text_storage.setAttribute("id", "all_javascript_textarea");
        text_storage.style.position = "absolute";
        text_storage.style.top = "0";
        text_storage.style.left = "0";
        text_storage.style.width = "calc(100% - 7px)";
        text_storage.style.height = "calc(100% - 7px)";
        text_storage.style.fontFamily = "Monospace";
        text_storage.style.fontSize = "11pt";
        document.body.appendChild(text_storage);
    }
    return text_storage;
}