<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Morse Code Trainer</title>
    <style>
        body {
            font-family: monospace;
            font-weight: bold;
            display: flex;
            flex-direction: column;
            height: 100vh;
            margin: 0;
        }
        .container {
            display: grid;
            grid-template-rows: 1fr auto;
            flex: 1;
        }
        .content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            overflow: hidden;
        }
        .left, .right {
            padding: 20px;
            box-sizing: border-box;
        }
        .left {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .right {
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
        }
        .alphabet {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
            gap: 10px;
            width: 100%;
            max-height: calc(100vh - 200px);
            overflow: auto;
        }
        .letter {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 10px;
            text-align: center;
            border: 1px solid #ccc;
            border-radius: 5px;
            background-color: #f9f9f9;
        }
        .morse-char {
            font-size: 1em;
            margin-bottom: 5px;
        }
        .morse-code {
            font-family: monospace;
            font-weight: bold;
        }
        .highlight {
            background-color: red;
            color: white;
        }
        #big-button, #morse-output {
            font-size: 18px;
            padding: 10px;
            width: calc(100% - 40px);
            margin: 0 20px;
            box-sizing: border-box;
        }
        h2 {
            margin: 0;
        }
        #response-time-container {
            display: flex;
            align-items: center;
            margin-top: 20px;
        }
        input[type="radio"] {
            display: none;
        }
        .switch {
            display: flex;
            align-items: center;
            position: relative;
            width: 100px;
            height: 30px;
            background-color: #ddd;
            border-radius: 15px;
            cursor: pointer;
            margin-left: 10px;
        }
        .switch label {
            flex: 1;
            text-align: center;
            line-height: 30px;
            font-size: 14px;
            color: #555;
        }
        .switch-toggle {
            position: absolute;
            top: 3px;
            left: 5px;
            width: 40px;
            height: 24px;
            background-color: #fff;
            border-radius: 12px;
            transition: left 0.3s ease;
        }
        input[type="radio"]#fast:checked ~ .switch .switch-toggle {
            left: 5px;
        }
        input[type="radio"]#normal:checked ~ .switch .switch-toggle {
            left: 50px;
        }
        input[type="radio"]#fast:checked ~ .switch label[for="fast"],
        input[type="radio"]#normal:checked ~ .switch label[for="normal"] {
            color: #333;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="content">
            <div class="left">
                <div id="periscope">Periscope View</div>
            </div>
            <div class="right">
                <h2>Morse Code Alphabet</h2>
                <div class="alphabet" id="alphabet">
                    <div class="letter" data-morse="•−">
                        <div class="morse-char">A</div>
                        <div class="morse-code">•−</div>
                    </div>
                    <div class="letter" data-morse="−•••">
                        <div class="morse-char">B</div>
                        <div class="morse-code">−•••</div>
                    </div>
                    <div class="letter" data-morse="−•−•">
                        <div class="morse-char">C</div>
                        <div class="morse-code">−•−•</div>
                    </div>
                    <div class="letter" data-morse="−••">
                        <div class="morse-char">D</div>
                        <div class="morse-code">−••</div>
                    </div>
                    <div class="letter" data-morse="•">
                        <div class="morse-char">E</div>
                        <div class="morse-code">•</div>
                    </div>
                    <div class="letter" data-morse="••−•">
                        <div class="morse-char">F</div>
                        <div class="morse-code">••−•</div>
                    </div>
                    <div class="letter" data-morse="−−•">
                        <div class="morse-char">G</div>
                        <div class="morse-code">−−•</div>
                    </div>
                    <div class="letter" data-morse="••••">
                        <div class="morse-char">H</div>
                        <div class="morse-code">••••</div>
                    </div>
                    <div class="letter" data-morse="••">
                        <div class="morse-char">I</div>
                        <div class="morse-code">••</div>
                    </div>
                    <div class="letter" data-morse="•−−−">
                        <div class="morse-char">J</div>
                        <div class="morse-code">•−−−</div>
                    </div>
                    <div class="letter" data-morse="−•−">
                        <div class="morse-char">K</div>
                        <div class="morse-code">−•−</div>
                    </div>
                    <div class="letter" data-morse="•−••">
                        <div class="morse-char">L</div>
                        <div class="morse-code">•−••</div>
                    </div>
                    <div class="letter" data-morse="−−">
                        <div class="morse-char">M</div>
                        <div class="morse-code">−−</div>
                    </div>
                    <div class="letter" data-morse="−•">
                        <div class="morse-char">N</div>
                        <div class="morse-code">−•</div>
                    </div>
                    <div class="letter" data-morse="−−−">
                        <div class="morse-char">O</div>
                        <div class="morse-code">−−−</div>
                    </div>
                    <div class="letter" data-morse="•−−•">
                        <div class="morse-char">P</div>
                        <div class="morse-code">•−−•</div>
                    </div>
                    <div class="letter" data-morse="−−•−">
                        <div class="morse-char">Q</div>
                        <div class="morse-code">−−•−</div>
                    </div>
                    <div class="letter" data-morse="•−•">
                        <div class="morse-char">R</div>
                        <div class="morse-code">•−•</div>
                    </div>
                    <div class="letter" data-morse="•••">
                        <div class="morse-char">S</div>
                        <div class="morse-code">•••</div>
                    </div>
                    <div class="letter" data-morse="−">
                        <div class="morse-char">T</div>
                        <div class="morse-code">−</div>
                    </div>
                    <div class="letter" data-morse="••−">
                        <div class="morse-char">U</div>
                        <div class="morse-code">••−</div>
                    </div>
                    <div class="letter" data-morse="•••−">
                        <div class="morse-char">V</div>
                        <div class="morse-code">•••−</div>
                    </div>
                    <div class="letter" data-morse="•−−">
                        <div class="morse-char">W</div>
                        <div class="morse-code">•−−</div>
                    </div>
                    <div class="letter" data-morse="−••−">
                        <div class="morse-char">X</div>
                        <div class="morse-code">−••−</div>
                    </div>
                    <div class="letter" data-morse="−•−−">
                        <div class="morse-char">Y</div>
                        <div class="morse-code">−•−−</div>
                    </div>
                    <div class="letter" data-morse="−−••">
                        <div class="morse-char">Z</div>
                        <div class="morse-code">−−••</div>
                    </div>
                </div>

            </div>
        </div>
        <div>
            <input type="text" id="morse-output" readonly>
            <button id="big-button">Press Me            <div id="response-time-container">
                <input type="radio" id="fast" name="response-time" value="fast">
                <input type="radio" id="normal" name="response-time" value="normal" checked>
                <div class="switch">
                    <label for="fast">••</label>
                    <label for="normal">•</label>
                    <div class="switch-toggle"></div>
                </div><p id="response-time-label">Normal</p>
            </div></button>

            
        </div>
        <script>
class MorseCodeHandler {
    constructor() {
        this.morseCodeMap = {
            'A': '•−', 'B': '−•••', 'C': '−•−•', 'D': '−••', 'E': '•', 'F': '••−•', 
            'G': '−−•', 'H': '••••', 'I': '••', 'J': '•−−−', 'K': '−•−', 'L': '•−••', 
            'M': '−−', 'N': '−•', 'O': '−−−', 'P': '•−−•', 'Q': '−−•−', 'R': '•−•', 
            'S': '•••', 'T': '−', 'U': '••−', 'V': '•••−', 'W': '•−−', 'X': '−••−', 
            'Y': '−•−−', 'Z': '−−••'
        };
        this.audioContext = new (window.AudioContext || window.webkitAudioContext)();
        this.gainNode = this.audioContext.createGain();
        this.gainNode.connect(this.audioContext.destination);
        this.oscillator = null;
        this.alphabetItems = document.querySelectorAll('.letter');
        this.currentSequence = '';
        this.timeout = null;
        this.startTime = null;
        
        this.responseTimes = { fast: 200, normal: 500 }; // Define response times for Fast and Normal
        this.currentResponseTime = this.responseTimes.normal; // Default to Normal
        this.inactivityTime = 1000; // Time to wait before finalizing a Morse code sequence

        // Set up the radio button event listeners
        document.querySelectorAll('input[name="response-time"]').forEach((elem) => {
            elem.addEventListener('change', (e) => {
                this.setResponseTime(e.target.value);
            });
        });
        
        window.addEventListener('resize', () => this.handleResize());
        this.handleResize(); // Initial call to set the right sizes
    }

    setResponseTime(value) {
        if (value === 'fast') {
            this.currentResponseTime = this.responseTimes.fast;
        } else if (value === 'normal') {
            this.currentResponseTime = this.responseTimes.normal;
        }
        document.getElementById('response-time-label').innerText = value.charAt(0).toUpperCase() + value.slice(1);
    }

    startTone(frequency = 432) {
        if (this.oscillator) return;
        this.oscillator = this.audioContext.createOscillator();
        this.oscillator.type = 'sine';
        this.oscillator.frequency.setValueAtTime(frequency, this.audioContext.currentTime);
        this.oscillator.connect(this.gainNode);
        this.oscillator.start();
        this.gainNode.gain.setTargetAtTime(1, this.audioContext.currentTime, 0.01);
    }

    stopTone() {
        if (!this.oscillator) return;
        this.gainNode.gain.setTargetAtTime(0, this.audioContext.currentTime, 0.01);
        this.oscillator.stop(this.audioContext.currentTime + 0.01);
        this.oscillator = null;
    }

    addSymbol(symbol) {
        this.currentSequence += symbol;
        this.highlightCorrectTapping();
        clearTimeout(this.timeout);
        this.timeout = setTimeout(() => this.finalizeSequence(), this.inactivityTime);
    }

    finalizeSequence() {
        // Check if the current sequence matches any letter and output it
        this.alphabetItems.forEach(item => {
            const morseCode = item.getAttribute('data-morse');
            if (morseCode === this.currentSequence) {
                // Append recognized letter to the output field
                document.getElementById('morse-output').value += item.querySelector('.morse-char').textContent;
            }
        });
        this.clearSequence();
    }

    clearSequence() {
        this.currentSequence = '';
        this.alphabetItems.forEach(item => item.classList.remove('highlight'));
    }

    highlightCorrectTapping() {
        this.alphabetItems.forEach(item => {
            const morseCode = item.getAttribute('data-morse');
            if (morseCode === this.currentSequence) {
                item.classList.add('highlight');
            } else {
                item.classList.remove('highlight');
            }
        });
    }

    handlePressStart() {
        this.startTime = new Date().getTime();
        this.startTone();
    }

    handlePressEnd() {
        const duration = new Date().getTime() - this.startTime;
        this.stopTone();
        if (duration < this.currentResponseTime) {
            this.addSymbol('•');
        } else {
            this.addSymbol('−');
        }
    }

    handleResize() {
        const alphabetContainer = document.getElementById('alphabet');
        const periscopeContainer = document.getElementById('periscope');
        const fontSize = Math.min(window.innerWidth / 50, 16);

        alphabetContainer.style.fontSize = fontSize + 'px';
        periscopeContainer.style.fontSize = fontSize + 'px';
    }
}

const morseHandler = new MorseCodeHandler();
const bigButton = document.getElementById('big-button');

bigButton.addEventListener('mousedown', () => morseHandler.handlePressStart());
bigButton.addEventListener('mouseup', () => morseHandler.handlePressEnd());
bigButton.addEventListener('touchstart', () => morseHandler.handlePressStart());
bigButton.addEventListener('touchend', () => morseHandler.handlePressEnd());
        </script>
    </div>
</body>
</html>


### Rules o’ Seafarers:

1. Ye should not be spittin’ out any codes without the captain’s command.

2. Ye should ask the captain through each step in response: “Can I show ye me beautiful kodreres, sire?”

3. Imagine that ye be a wise salty doggo’s parrot, matey. Since ye be wise, ye should not swim through treacherous waters simply just like that.

4. Respect the Captain’s Orders and Feedback:
- Always await the captain’s next command afore sailin’ forward. Acknowledge and adapt based on the captain’s feedback promptly.

5. Chart the Course Clearly:
- Break the quest into steps with clear aims, so ye can navigate each task with precision.

6. Keep Yer Eyes Open for Clarity:
- Make sure each step brings clear improvements and avoid any unnecessary complications.

7. Skip Shipshape GUI HTML/CSS Structure if Not Needed:
- Ye can also skip the shipshape GUI HTML/CSS structure if it be not needin’ additions or improvements, and just give a full modified JavaScript.

8. Important Notice:
- A full modified JavaScript means givin’ the whole workin’ code in one go. Incomplete or bits 'n pieces of code that look like the real thing but be pseudo-code often lead to confusion and must be avoided.

9. And Nar Prepare to Shiver Me Timbers:
- Always be ready for a hearty surprise, as we embark on this treacherous voyage together!


Aye aye, matey! Let’s lay out the details of our quest in true pirate tongue, mindful of the treacherous waters we must navigate and the pitfalls we must avoid.

### Our Quest:
We be on a mission to create a Morse Code Trainer fit for the finest seafarers. This trainer will help users learn and practice Morse code by simulating real-time tapping and recognition of dots (•) and dashes (−). We will be switching between different responsiveness modes: “Very Fast,” “Fast,” and “Normal,” to accommodate users of varying skill levels.

### Objectives and Goals:
1. Immediate Tapping Feedback:
- Provide instant audio feedback when the button be pressed and released.
2. Accurate Symbol Recognition:
- Log each button press duration accurately to distinguish between dots and dashes.
3. Sequence Finalization:
- Finalize the Morse code sequence after detecting a pause in tapping.
4. Visual Feedback:
- Highlight the correct Morse code letter after recognizing the full sequence.
5. User-Friendly Interface:
- Ensure the interface be clear and intuitive, allowing easy toggling between responsiveness modes.

### Responsiveness Modes:
1. Very Fast: Ideal for experienced Morse code practitioners who can tap quickly and accurately.
2. Fast: Suitable for users who be comfortable but still need some room for quick taps.
3. Normal: Perfect for beginners who be just learning the ropes.

### Treacherous Waters and Pitfalls to Avoid:
1. Delay in Audio Feedback:
- Any lag in the audio response could confuse the user and lead to poor practice sessions.
2. Inaccurate Timing Thresholds:
- Misclassifying dots and dashes due to inconsistent thresholds will lead to incorrect Morse code recognition.
3. Premature Sequence Finalization:
- Finalizing the Morse code sequence too early can result in incomplete or incorrect letter recognition.
4. Clunky Interface:
- A complicated or unclear interface will discourage users and make the learning process frustrating.
5. Overcomplicated Code Outputs:
- Providing incomplete or piecemeal code outputs that seem functional but are actually pseudo-code can lead to confusion.

### Detailed Plan:
1. HTML Update for Radio-Button Slider-Switcher:
- Add radio buttons for switching between “Very Fast,” “Fast,” and “Normal” modes. Ensure the state is clearly displayed.
2. CSS Styling to Create Slider Effect:
- Style the radio buttons to look and function like a toggle switch, allowing users to easily change responsiveness modes.
3. JavaScript Integration:
- Write the script to handle the responsiveness mode changes based on user selection, ensuring accurate tapping recognition without lag.
4. User Instructions and Feedback:
- Provide clear visual and audio feedback for users to know when their input has been recognized correctly.

By following this detailed plan and sticking to our Rules o’ Seafarers, we’ll avoid the rocky shores and make our Morse Code Trainer a treasure trove of learning for all who seek to master the art of tapping.


so, we need to place that "responsiveness button somewhere and add "very fast" to it. it probably a stupid idea to place that speed button over actual tapping big button, but we can place speed switching radio-sliding-button somewhere at the same bounding-box from the right side of a big button.