437 lines
15 KiB
HTML
437 lines
15 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Dog Calorie Calculator</title>
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<style>
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* {
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box-sizing: border-box;
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}
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.calculator-container {
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max-width: 600px;
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margin: 0 auto;
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padding: 20px;
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
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line-height: 1.6;
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color: #333;
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}
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.section {
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background: #f8f9fa;
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border: 1px solid #e9ecef;
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border-radius: 8px;
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padding: 20px;
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margin-bottom: 20px;
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}
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.section h2 {
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margin-top: 0;
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margin-bottom: 20px;
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color: #2c3e50;
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font-size: 1.4em;
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font-weight: 600;
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}
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.form-group {
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margin-bottom: 15px;
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}
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label {
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display: block;
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margin-bottom: 5px;
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font-weight: 500;
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color: #495057;
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}
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select,
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input[type="number"] {
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width: 100%;
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padding: 8px 12px;
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border: 1px solid #ced4da;
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border-radius: 4px;
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font-size: 14px;
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background-color: white;
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transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
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}
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select:focus,
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input[type="number"]:focus {
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outline: none;
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border-color: #80bdff;
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box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
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}
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.results {
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background: #e8f5e8;
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border: 1px solid #c3e6c3;
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border-radius: 4px;
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padding: 15px;
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margin-top: 20px;
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}
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.result-item {
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display: flex;
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justify-content: space-between;
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align-items: center;
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margin-bottom: 8px;
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}
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.result-item:last-child {
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margin-bottom: 0;
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}
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.result-label {
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font-weight: 500;
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color: #2d5a2d;
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}
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.result-value {
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font-weight: 600;
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color: #1e3a1e;
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font-size: 1.1em;
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}
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.collapsible {
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background: #fff;
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border: 1px solid #dee2e6;
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border-radius: 8px;
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margin-bottom: 20px;
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overflow: hidden;
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}
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.collapsible-header {
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background: #f1f3f4;
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padding: 15px 20px;
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cursor: pointer;
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user-select: none;
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display: flex;
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justify-content: space-between;
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align-items: center;
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border-bottom: 1px solid #dee2e6;
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transition: background-color 0.2s ease;
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}
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.collapsible-header:hover {
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background: #e9ecef;
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}
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.collapsible-header h3 {
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margin: 0;
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font-size: 1.2em;
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color: #2c3e50;
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font-weight: 600;
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}
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.collapsible-arrow {
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transition: transform 0.2s ease;
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font-size: 1.2em;
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color: #6c757d;
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}
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.collapsible.active .collapsible-arrow {
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transform: rotate(180deg);
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}
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.collapsible-content {
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max-height: 0;
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overflow: hidden;
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transition: max-height 0.3s ease;
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}
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.collapsible.active .collapsible-content {
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max-height: 1000px;
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}
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.collapsible-inner {
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padding: 20px;
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}
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.input-group {
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display: flex;
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gap: 10px;
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align-items: flex-end;
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}
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.input-group .form-group {
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flex: 1;
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margin-bottom: 0;
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}
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.unit-select {
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min-width: 80px;
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}
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.error {
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color: #dc3545;
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font-size: 0.875em;
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margin-top: 5px;
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}
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@media (max-width: 480px) {
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.calculator-container {
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padding: 15px;
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}
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.section {
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padding: 15px;
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}
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.input-group {
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flex-direction: column;
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gap: 15px;
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}
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.input-group .form-group {
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margin-bottom: 15px;
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}
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.result-item {
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flex-direction: column;
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align-items: flex-start;
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gap: 5px;
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}
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}
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.hidden {
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display: none;
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}
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</style>
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</head>
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<body>
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<div class="calculator-container">
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<div class="section">
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<h2>Dog's Characteristics</h2>
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<div class="form-group">
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<label for="dogType">Dog Type / Activity Level:</label>
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<select id="dogType" aria-describedby="dogTypeHelp">
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<option value="">Select dog type...</option>
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<option value="3.0">Puppy (0-4 months)</option>
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<option value="2.0">Puppy (4 months - adult)</option>
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<option value="1.2">Adult - inactive/obese</option>
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<option value="1.6">Adult (neutered/spayed) - average activity</option>
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<option value="1.8">Adult (intact) - average activity</option>
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<option value="1.0">Adult - weight loss</option>
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<option value="1.7">Adult - weight gain</option>
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<option value="2.0">Working dog - light work</option>
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<option value="3.0">Working dog - moderate work</option>
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<option value="5.0">Working dog - heavy work</option>
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<option value="1.1">Senior dog</option>
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</select>
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</div>
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<div class="form-group">
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<label for="weight">Dog's Weight (kg):</label>
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<input type="number" id="weight" min="0.1" step="0.1" placeholder="Enter weight in kg" aria-describedby="weightHelp">
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<div id="weightError" class="error hidden">Please enter a valid weight (minimum 0.1 kg)</div>
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</div>
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<div class="results" id="calorieResults" style="display: none;">
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<div class="result-item">
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<span class="result-label">Resting Energy Requirement (RER):</span>
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<span class="result-value" id="rerValue">- cal/day</span>
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</div>
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<div class="result-item">
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<span class="result-label">Maintenance Energy Requirement (MER):</span>
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<span class="result-value" id="merValue">- cal/day</span>
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</div>
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</div>
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</div>
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<div class="collapsible" id="foodCalculator">
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<div class="collapsible-header" onclick="toggleCollapsible('foodCalculator')">
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<h3>How much food is that?</h3>
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<span class="collapsible-arrow">▼</span>
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</div>
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<div class="collapsible-content">
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<div class="collapsible-inner">
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<div class="form-group">
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<label for="foodEnergy">Food Energy Content (kcal/100g):</label>
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<input type="number" id="foodEnergy" min="1" step="1" placeholder="Enter kcal per 100g" aria-describedby="foodEnergyHelp">
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<div id="foodEnergyError" class="error hidden">Please enter a valid energy content (minimum 1 kcal/100g)</div>
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</div>
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<div class="results" id="dailyFoodResults" style="display: none;">
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<div class="result-item">
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<span class="result-label">Daily Food Amount:</span>
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<span class="result-value" id="dailyFoodValue">- g/day</span>
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</div>
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</div>
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<div class="form-group" style="margin-top: 20px;">
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<label for="days">Number of Days:</label>
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<input type="number" id="days" min="1" step="1" value="1" placeholder="Enter number of days" aria-describedby="daysHelp">
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<div id="daysError" class="error hidden">Please enter a valid number of days (minimum 1)</div>
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</div>
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<div class="input-group">
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<div class="form-group">
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<label for="totalFoodDisplay">Total Food Amount:</label>
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<input type="text" id="totalFoodDisplay" readonly style="background-color: #f8f9fa; cursor: not-allowed;">
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</div>
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<div class="form-group">
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<label for="unit">Unit:</label>
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<select id="unit" class="unit-select" aria-describedby="unitHelp">
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<option value="g">grams (g)</option>
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<option value="kg">kilograms (kg)</option>
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<option value="oz">ounces (oz)</option>
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<option value="lb">pounds (lb)</option>
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</select>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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<script>
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let currentMER = 0;
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function toggleCollapsible(id) {
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const element = document.getElementById(id);
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element.classList.toggle('active');
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}
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function calculateRER(weightKg) {
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return 70 * Math.pow(weightKg, 0.75);
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}
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function calculateMER(rer, factor) {
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return rer * factor;
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}
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function validateInput(value, min = 0, isInteger = false) {
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const num = parseFloat(value);
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if (isNaN(num) || num < min) return false;
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if (isInteger && !Number.isInteger(num)) return false;
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return true;
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}
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function showError(elementId, show = true) {
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const errorElement = document.getElementById(elementId);
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if (show) {
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errorElement.classList.remove('hidden');
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} else {
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errorElement.classList.add('hidden');
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}
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}
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function convertUnits(grams, unit) {
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switch (unit) {
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case 'kg':
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return grams / 1000;
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case 'oz':
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return grams / 28.3495;
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case 'lb':
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return grams / 453.592;
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default:
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return grams;
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}
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}
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function formatNumber(num, decimals = 0) {
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return num.toFixed(decimals).replace(/\.?0+$/, '');
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}
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function updateCalorieCalculations() {
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const weight = document.getElementById('weight').value;
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const dogTypeFactor = document.getElementById('dogType').value;
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showError('weightError', false);
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if (!weight || !validateInput(weight, 0.1)) {
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showError('weightError', true);
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document.getElementById('calorieResults').style.display = 'none';
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return;
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}
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if (!dogTypeFactor) {
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document.getElementById('calorieResults').style.display = 'none';
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return;
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}
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const weightKg = parseFloat(weight);
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const factor = parseFloat(dogTypeFactor);
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const rer = calculateRER(weightKg);
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const mer = calculateMER(rer, factor);
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currentMER = mer;
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document.getElementById('rerValue').textContent = formatNumber(rer, 0) + ' cal/day';
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document.getElementById('merValue').textContent = formatNumber(mer, 0) + ' cal/day';
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document.getElementById('calorieResults').style.display = 'block';
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updateFoodCalculations();
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}
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function updateFoodCalculations() {
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if (currentMER === 0) return;
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const foodEnergy = document.getElementById('foodEnergy').value;
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const days = document.getElementById('days').value;
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const unit = document.getElementById('unit').value;
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showError('foodEnergyError', false);
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showError('daysError', false);
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if (!foodEnergy || !validateInput(foodEnergy, 1)) {
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if (foodEnergy) showError('foodEnergyError', true);
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document.getElementById('dailyFoodResults').style.display = 'none';
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document.getElementById('totalFoodDisplay').value = '';
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return;
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}
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if (!days || !validateInput(days, 1, true)) {
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if (days) showError('daysError', true);
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document.getElementById('totalFoodDisplay').value = '';
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return;
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}
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const energyPer100g = parseFloat(foodEnergy);
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const numDays = parseInt(days);
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const dailyFoodGrams = (currentMER / energyPer100g) * 100;
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const totalFoodGrams = dailyFoodGrams * numDays;
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document.getElementById('dailyFoodValue').textContent = formatNumber(dailyFoodGrams, 1) + ' g/day';
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document.getElementById('dailyFoodResults').style.display = 'block';
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const convertedAmount = convertUnits(totalFoodGrams, unit);
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const unitLabel = unit === 'g' ? 'g' : unit === 'kg' ? 'kg' : unit === 'oz' ? 'oz' : 'lb';
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const decimals = unit === 'g' ? 0 : unit === 'kg' ? 2 : 1;
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document.getElementById('totalFoodDisplay').value = formatNumber(convertedAmount, decimals) + ' ' + unitLabel;
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}
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document.getElementById('weight').addEventListener('input', updateCalorieCalculations);
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document.getElementById('dogType').addEventListener('change', updateCalorieCalculations);
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document.getElementById('foodEnergy').addEventListener('input', updateFoodCalculations);
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document.getElementById('days').addEventListener('input', updateFoodCalculations);
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document.getElementById('unit').addEventListener('change', updateFoodCalculations);
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document.getElementById('weight').addEventListener('blur', function() {
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const weight = this.value;
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if (weight && !validateInput(weight, 0.1)) {
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showError('weightError', true);
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}
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});
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document.getElementById('foodEnergy').addEventListener('blur', function() {
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const energy = this.value;
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if (energy && !validateInput(energy, 1)) {
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showError('foodEnergyError', true);
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}
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});
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document.getElementById('days').addEventListener('blur', function() {
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const days = this.value;
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if (days && !validateInput(days, 1, true)) {
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showError('daysError', true);
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}
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});
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</script>
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</body>
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</html> |