Goal: Transform the provided HTML, CSS, and JavaScript code for a Forex checklist analyzer app into a fully functional, ready-to-use PyQt application. The generated code should be directly copy-pasteable into VS Code and executable without requiring any manual modifications.



Input:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="styles.css">
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/spectrum/1.8.0/spectrum.min.css">
    <script src="https://cdnjs.cloudflare.com/ajax/libs/spectrum/1.8.0/spectrum.min.js"></script>
    <link href="https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&display=swap" rel="stylesheet">
    <title>Forex Checklist Analyzer</title>
  <style>
:root {
    --font-primary: 'Roboto', sans-serif;
    --gradient-start: #1A2634;
    --gradient-middle: #323C4F;
    --gradient-end: #424D5C;
    --container-bg: #1c212af5;
    --item-bg: #1E1E1E;
    --button-gradient-start: #B38184;
    --button-gradient-end: #D8A7A1;
    --text-primary: #F2F2F2;
    --text-secondary: #C1C1C1;
    --border-radius: 8px;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition-main: all 0.35s ease-in-out;
    --transition-scale: scale(1.05);
}

html {
    height: 100%;
    background: linear-gradient(to bottom, var(--gradient-start), var(--gradient-middle), var(--gradient-end));
    background-attachment: fixed;
    font-size: 16px;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    font-family: var(--font-primary);
    color: var(--text-primary);
    background: transparent;
    line-height: 1.6;
    font-weight: 400;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: var(--transition-main);
}

button, input, textarea {
    font-family: var(--font-primary);
    border-radius: var(--border-radius);
    padding: 10px 15px;
    transition: background-color 0.3s, transform 0.3s;
}

button {
    background: linear-gradient(45deg, var(--button-gradient-start), var(--button-gradient-end));
    border: none;
    box-shadow: var(--shadow);
    cursor: pointer;
    color: white;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

button:hover, button:focus {
    transform: var(--transition-scale);
}

input[type="checkbox"] {
    appearance: none;
    width: 24px;
    height: 24px;
    border: 2px solid var(--button-gradient-end);
    border-radius: 4px;
    cursor: pointer;
    position: relative;
}

input[type="checkbox"]:checked {
    background-color: var(--button-gradient-start);
    border-color: var(--button-gradient-start);
}

input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 7px;
    top: 3px;
    width: 6px;
    height: 12px;
    border: solid white;
    border-width: 0 3px 3px 0;
    transform: rotate(45deg);
}

.container {
    max-width: 700px;
    margin: 20px;
    background: var(--container-bg);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.container div[id^="item-"] {
    background: var(--item-bg);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-main);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.container div[id^="item-"] button {
    background: linear-gradient(45deg, var(--button-gradient-end), var(--button-gradient-start));
    box-shadow: var(--shadow);
}


    .container {
        margin: 10px;
        padding: 20px;
    }
}

.container h1 {
    font-weight: 700;
    color: var(--button-gradient-end);
    text-align: center;
    margin-bottom: 30px;
}

.checklist-item textarea {
    font-size: 1.6em;
    border: 2px solid var(--border-radius);
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    cursor: text;
    width: calc(100% - 40px);
    text-align: start;
    padding: 10px 20px;
    color: var(--text-primary);
    font-family: 'Vazir', 'Roboto', sans-serif;
    direction: rtl;
    resize: none;
    overflow: auto;
    min-height: 50px;
    white-space: pre-wrap;
    transition: height 0.3s ease;
 overflow: auto; 
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.checklist-item textarea::-webkit-scrollbar {
    display: none;
}

.checklist-item textarea:focus {
    height: auto;
    min-height: 50px;
}

.checklist-item button {
    margin-left: 10px;
    vertical-align: top;
}


@media (max-width: 768px) {
    .checklist-item textarea {
        font-size: 1.4em;
        width: calc(100% - 30px);
    }
}


.image-upload-button {
    display: inline-block;
    margin-left: 10px;
    cursor: pointer;
    color: white;
    background: linear-gradient(to right, var(--button-gradient-start), var(--button-gradient-end));
    padding: 10px 15px;
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--shadow);
    font-weight: 500;
    text-transform: uppercase;
}

.slider-background {
    background-color: #f2f2f2;
    height: 40px;
    border-radius: 20px;
    position: relative;
    margin: 30px 0;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}

.slider-fill {
    background: linear-gradient(to right, #4a90e2, #82c4e8);
    height: 100%;
    border-radius: 20px;
    transition: width 0.4s ease;
}

.numerical-label {
    color: #333;
    font-size: 1.2em;
    font-weight: 700;
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    transition: left 0.4s ease;
    background: #ffffff;
    border: 2px solid #4a90e2;
    border-radius: 15px;
    padding: 6px 12px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.25);
    text-shadow: none;
}

.priority-box {
    background: linear-gradient(45deg, var(--button-gradient-end), var(--button-gradient-start));
    color: white;
    padding: 3px 8px;
    border-radius: var(--border-radius);
    font-weight: bold;
    margin-left: 8px;
}



  </style>
<script>
const storage = {
    set(key, value) {
        localStorage.setItem(key, JSON.stringify(value));
    },
    get(key, defaultValue) {
        const item = localStorage.getItem(key);
        return item ? JSON.parse(item) : defaultValue;
    }
};

const checklistData = {
    section1: storage.get('checklistDataSection1', [])
};

function updateScore() {
    const sectionData = checklistData.section1;
    const totalScore = sectionData.reduce((acc, item) => acc + (item.active ? item.priority : 0), 0);
    const sliderPercentage = Math.min(totalScore, 100);
    const sliderFill = document.getElementById('sliderFillSection1');
    const numericalLabel = document.getElementById('numericalLabelSection1');

    sliderFill.style.width = `${sliderPercentage}%`;
    numericalLabel.textContent = totalScore;
    numericalLabel.style.left = calculateLabelPosition(sliderPercentage, numericalLabel, sliderFill.parentElement) + 'px';
}
function calculateLabelPosition(percentage, label, slider) {
    const sliderWidth = slider.offsetWidth;
    const labelWidth = label.offsetWidth;
    let position;

    if (percentage >= 100) {
        position = sliderWidth - (labelWidth / 2);
    } else {
        position = (percentage / 100) * sliderWidth - (labelWidth / 2);

        position = Math.max(position, 0);
    }

    position = Math.min(position, sliderWidth - (labelWidth / 2));

    return position;
}


function renderChecklist() {
    const container = document.getElementById('checklistContainerSection1');
    container.innerHTML = '';
    checklistData.section1.forEach((item, index) => {
        container.appendChild(createChecklistItem(item, index));
    });
    updateScore();
    updateChecklistItemCount();
}

function createChecklistItem(item, index) {
    const div = document.createElement('div');
    div.id = `item-1-${index}`;
    div.classList.add('checklist-item');
    div.draggable = true;
    div.innerHTML = `
        <input type="checkbox" ${item.active ? 'checked' : ''} onchange="toggleActive(${index})">
        <label>
            <textarea dir="auto" onblur="editCriterionTitle(${index}, this.value)">${item.name}</textarea>
            <span class="priority-box" onclick="editPriority(${index})">${item.priority}</span>
        </label>
        <button onclick="deleteCriteria(${index})">Delete</button>
    `;
    div.addEventListener('dragstart', handleDragStart);
    div.addEventListener('dragover', handleDragOver);
    div.addEventListener('drop', handleDrop);
    return div;
}


function editPriority(index) {
    const newPriority = parseInt(prompt("Enter the new priority:"), 10);
    if (!isNaN(newPriority)) {
        checklistData.section1[index].priority = newPriority;
        saveDataAndRender();
    } else {
        alert('Invalid input. Please enter a valid priority number.');
    }
}


function toggleActive(index) {
    checklistData.section1[index].active = !checklistData.section1[index].active;
    saveDataAndRender();
}

function addCriteria() {
    const name = prompt("Enter the criteria name:");
    if (name) {
        const priority = parseInt(prompt("Enter the criteria priority:"), 10);
        if (!isNaN(priority)) {
            checklistData.section1.push({ name, priority, active: true });
            saveDataAndRender();
        } else {
            alert('Invalid priority. Please enter a valid number.');
        }
    } else {
        alert('Invalid name. Please enter a valid name.');
    }
}


function deleteCriteria(index) {
    checklistData.section1.splice(index, 1);
    saveDataAndRender();
}

function updateChecklistItemCount() {
    const totalItems = checklistData.section1.length;
    const activeItems = checklistData.section1.filter(item => item.active).length;
    document.getElementById('totalItemsSection1').textContent = totalItems;
    document.getElementById('activeItemsSection1').textContent = activeItems;
}

function searchCriteria() {
    const query = document.getElementById('searchBoxSection1').value.toLowerCase();
    checklistData.section1.forEach((item, index) => {
        const displayStyle = item.name.toLowerCase().includes(query) ? 'block' : 'none';
        document.getElementById(`item-1-${index}`).style.display = displayStyle;
    });
}

function exportChecklistData() {
    const dataStr = `data:text/json;charset=utf-8,${encodeURIComponent(JSON.stringify(checklistData.section1))}`;
    const downloadAnchorNode = document.createElement('a');
    downloadAnchorNode.href = dataStr;
    downloadAnchorNode.download = 'checklistDataSection1.json';
    document.body.appendChild(downloadAnchorNode);
    downloadAnchorNode.click();
    downloadAnchorNode.remove();
}

function importChecklistData() {
    const uploadInput = document.createElement('input');
    uploadInput.type = 'file';
    uploadInput.accept = '.json';
    uploadInput.onchange = async e => {
        const file = e.target.files[0];
        if (file) {
            try {
                const jsonData = JSON.parse(await file.text());
                if (Array.isArray(jsonData)) {
                    checklistData.section1 = jsonData;
                    saveDataAndRender();
                } else {
                    alert('Invalid JSON!');
                }
            } catch (error) {
                alert('Invalid JSON!');
            }
        }
    };
    uploadInput.click();
}
function handleDragStart(e) {
    e.dataTransfer.setData('text/plain', e.target.id);
    e.dataTransfer.effectAllowed = 'move';
}

        function handleDragOver(e) {
            e.preventDefault();
        }

   function handleDrop(e) {
    e.preventDefault();
    const draggedItemId = e.dataTransfer.getData('text/plain');
    const dropTarget = e.target.closest('.checklist-item');
    const container = document.getElementById('checklistContainerSection1');
    
    if (dropTarget && draggedItemId !== dropTarget.id) {
        const draggedItem = document.getElementById(draggedItemId);
        const referenceNode = dropTarget.nextSibling;
        container.insertBefore(draggedItem, referenceNode);
        updateDataOrder(draggedItemId, dropTarget.id);
    }
}

function updateDataOrder(draggedId, targetId) {
    const draggedIndex = parseInt(draggedId.split('-')[2], 10);
    const targetIndex = parseInt(targetId.split('-')[2], 10);

    const draggedItem = checklistData.section1[draggedIndex];
    checklistData.section1.splice(draggedIndex, 1);
    checklistData.section1.splice(targetIndex, 0, draggedItem);

    saveDataAndRender();
}

function editCriterionTitle(index, newTitle) {
  if (newTitle) {
    checklistData.section1[index].name = newTitle.trim();
    saveDataAndRender(); 
  }
}

function saveDataAndRender() {
    storage.set('checklistDataSection1', checklistData.section1);
    renderChecklist();
}

window.onload = renderChecklist;
window.addCriteria = addCriteria;
window.exportChecklistData = exportChecklistData;
window.importChecklistData = importChecklistData;
window.searchCriteria = searchCriteria;
window.toggleActive = toggleActive;
window.editPriority = editPriority;
window.editCriterionTitle = editCriterionTitle;
window.deleteCriteria = deleteCriteria;
</script>


  
</head>
<body>
    <main class="container" id="containerSection1">
        <header>
            <h1 class="editable-title" id="titleSection1" contenteditable="true">Essential Criteria</h1>
            <div class="slider-background">
                <div id="sliderFillSection1" class="slider-fill">
                    <div id="numericalLabelSection1" class="numerical-label"></div>
                </div>
            </div>
            <div class="item-count flex-container">
                <label>Total:</label>
                <span id="totalItemsSection1"></span>
                <label>Active:</label>
                <span id="activeItemsSection1"></span>
            </div>
            <input type="text" id="searchBoxSection1" class="narrow-search-box" placeholder="Search criteria..." oninput="searchCriteria('1')">
        </header>
        <section>
            <div id="checklistContainerSection1" class="checklist-container"></div>
        </section>
        <section class="button-container">
            <button onclick="addCriteria('1')" class="add-button">Add</button>
            <button onclick="exportChecklistData('1')" class="export-button">Export</button>
            <button onclick="importChecklistData('1')" class="import-button">Import</button>
        </section>
    </main>
</body>
</html>




Requirements:

UI Conversion: Faithfully replicate the existing app's user interface using PyQt widgets and layouts. Maintain the visual style and design elements as closely as possible.

Functionality Preservation: Ensure that all existing app functionalities (checklist item toggling, section management, score calculation, data import/export, drag-and-drop, undo/redo, etc.) are implemented in the PyQt application.

Data Structure: Preserve the underlying data structure used in the JavaScript code (e.g., JSON format for checklist data) and implement appropriate data handling mechanisms in PyQt.

Code Quality: Generate clean, well-structured, and commented PyQt code that adheres to best practices.

Error Handling: Implement robust error handling to gracefully manage potential issues during data loading, user input, or other operations.

Documentation: Provide clear and concise documentation explaining the structure and functionality of the generated PyQt code.

Ready-to-Use Output: The generated PyQt code should be self-contained and include all necessary imports, resource files (if any), and initialization logic. It should be directly copy-pasteable into a new Python file in VS Code and executable without requiring any further modifications or installations (assuming PyQt5 is already installed).

Output:

PyQt Code: Provide the complete, ready-to-use PyQt code for the transformed application, including:

All necessary imports (e.g., from PyQt5.QtWidgets import ...)

Resource files (e.g., images, icons) embedded as base64 strings or loaded from relative paths.

Initialization logic to create the main application window and start the event loop (e.g., app = QApplication(sys.argv), window = MainWindow(), window.show(), sys.exit(app.exec_())).

Documentation: Include a brief comment section at the beginning of the code explaining the app's structure, dependencies, and how to run it (e.g., "Copy and paste this code into a new Python file, then run it with Python.").