No progress data to display.
`;
}
renderWeightChart(metrics.weightByDate);
renderMeasurementChart(metrics.measurementChange);
};
const renderWeightChart = (weightByDate) => {
const ctx = elements.weightChartCanvas?.getContext('2d');
if (!ctx) return;
const labels = Object.keys(weightByDate);
const data = Object.values(weightByDate);
if (weightChart) weightChart.destroy();
weightChart = new Chart(ctx, {
type: 'line',
data: { labels, datasets: [{ label: 'Weight (lbs)', data, borderColor: '#16a34a', backgroundColor: 'rgba(22, 163, 74, 0.1)', fill: true, tension: 0.1 }] },
options: { responsive: true, maintainAspectRatio: true }
});
};
const renderMeasurementChart = (measurementChange) => {
const ctx = elements.measurementChartCanvas?.getContext('2d');
if (!ctx) return;
const labels = Object.keys(measurementChange);
const data = Object.values(measurementChange);
if (measurementChart) measurementChart.destroy();
measurementChart = new Chart(ctx, {
type: 'radar',
data: { labels, datasets: [{ label: '% Change from Start', data, backgroundColor: 'rgba(79, 70, 229, 0.2)', borderColor: '#4f46e5', pointBackgroundColor: '#4f46e5' }] },
options: { responsive: true, maintainAspectRatio: true, scales: { r: { ticks: { callback: value => `${value}%` } } } }
});
};
const renderConfigPanel = () => {
const container = elements.editableList;
if (!container) return;
container.innerHTML = '';
progressData.forEach(d => {
const card = document.createElement('div');
card.className = 'grid grid-cols-1 md:grid-cols-4 gap-4 items-center bg-white p-3 rounded-lg border';
card.innerHTML = `
`;
container.appendChild(card);
});
};
const handleAddLog = (e) => {
e.preventDefault();
try {
const getNumericValue = (id) => parseFloat(document.getElementById(id).value) || 0;
const newLog = {
id: progressData.length > 0 ? Math.max(...progressData.map(d => d.id)) + 1 : 1,
date: document.getElementById('recordDate').value,
height: getNumericValue('height'),
weight: getNumericValue('weight'),
waist: getNumericValue('waist'),
hips: getNumericValue('hips'),
chest: getNumericValue('chest'),
};
progressData.push(newLog);
elements.addForm.reset();
renderAll();
showToast('Progress record added!');
} catch (error) {
console.error("Error adding record:", error);
showToast("Error: Could not add record.");
}
};
const handleConfigListClick = (e) => {
const target = e.target.closest('button');
if (!target) return;
const action = target.dataset.action;
const id = parseInt(target.dataset.id, 10);
if (action === 'update') {
const index = progressData.findIndex(d => d.id === id);
if (index === -1) return;
const inputs = target.closest('.grid').querySelectorAll('input');
inputs.forEach(input => {
const field = input.dataset.field;
let value = input.value;
if (input.type === 'number') value = parseFloat(value) || 0;
progressData[index][field] = value;
});
} else if (action === 'delete') {
progressData = progressData.filter(d => d.id !== id);
}
renderAll();
showToast(`Record ${action}d successfully!`);
};
const handleGeneratePDF = () => {
try {
const { jsPDF } = window.jspdf;
const doc = new jsPDF();
const metrics = calculateMetrics();
doc.setFontSize(20);
doc.text("Weight & Measurement Progress Report", 105, 20, null, null, 'center');
doc.setFontSize(10);
doc.text(`Generated on: ${new Date().toLocaleDateString()}`, 105, 26, null, null, 'center');
doc.autoTable({ startY: 35, head: [['Metric', 'Value']], body: [ ['Current Weight', `${metrics.currentWeight.toFixed(1)} lbs`], ['Total Change', `${metrics.totalChange.toFixed(1)} lbs`], ['BMI', metrics.bmi.toFixed(1)], ['Waist Change', `${metrics.waistChange.toFixed(1)} in`] ], theme: 'grid' });
let finalY = doc.lastAutoTable.finalY || 60;
doc.setFontSize(14);
doc.text("Weight Progress", 14, finalY + 15);
doc.addImage(elements.weightChartCanvas.toDataURL('image/png', 1.0), 'PNG', 14, finalY + 20, 180, 80);
finalY += 95;
doc.setFontSize(14);
doc.text("Progress Log", 14, finalY);
const sortedData = [...progressData].sort((a, b) => new Date(b.date) - new Date(a.date));
const tableBody = sortedData.slice(0, 20).map(d => [new Date(d.date).toLocaleDateString(), `${d.weight.toFixed(1)} lbs`, `${d.waist.toFixed(1)} in`, `${d.hips.toFixed(1)} in`]);
doc.autoTable({ head: [['Date', 'Weight', 'Waist', 'Hips']], body: tableBody, startY: finalY + 5, theme: 'striped', headStyles: { fillColor: [22, 163, 74] } });
doc.save('Progress-Report.pdf');
} catch (error) {
console.error("Failed to generate PDF:", error);
showToast("Error: Could not generate PDF.");
}
};
const switchTab = (tabName) => {
currentTab = tabName;
Object.values(elements.tabs).forEach(tab => tab.classList.add('hidden'));
Object.values(elements.tabButtons).forEach(btn => btn.classList.remove('active'));
elements.tabs[tabName].classList.remove('hidden');
elements.tabButtons[tabName].classList.add('active');
updateNavButtons();
};
const navigateTabs = (direction) => {
const currentIndex = tabOrder.indexOf(currentTab);
const newIndex = direction === 'next' ? Math.min(currentIndex + 1, tabOrder.length - 1) : Math.max(currentIndex - 1, 0);
if (newIndex !== currentIndex) switchTab(tabOrder[newIndex]);
};
const updateNavButtons = () => {
const currentIndex = tabOrder.indexOf(currentTab);
elements.navButtons.prev.disabled = currentIndex === 0;
elements.navButtons.next.disabled = currentIndex === tabOrder.length - 1;
};
const showToast = (message) => {
if (!elements.toast) return;
elements.toast.textContent = message;
elements.toast.classList.add('show');
setTimeout(() => { elements.toast.classList.remove('show'); }, 3000);
}
elements.addForm.addEventListener('submit', handleAddLog);
elements.editableList.addEventListener('click', handleConfigListClick);
elements.pdfButton.addEventListener('click', handleGeneratePDF);
elements.tabButtons.dashboard.addEventListener('click', () => switchTab('dashboard'));
elements.tabButtons.config.addEventListener('click', () => switchTab('config'));
elements.navButtons.prev.addEventListener('click', () => navigateTabs('prev'));
elements.navButtons.next.addEventListener('click', () => navigateTabs('next'));
renderAll();
updateNavButtons();
});
