Avg. Daily Oil (bbl)
${avgOilPerDay.toLocaleString(undefined, {maximumFractionDigits: 0})}
`;
};
const renderDataTable = () => {
dataTableBody.innerHTML = '';
const sortedLogs = [...state.logs].sort((a, b) => new Date(b.date) - new Date(a.date));
sortedLogs.forEach(log => {
const row = `
| ${log.date} |
${log.wellId} |
${log.oil.toLocaleString()} |
${log.gas.toLocaleString()} |
${log.water.toLocaleString()} |
`;
dataTableBody.innerHTML += row;
});
};
const renderCharts = () => {
const productionByDate = state.logs.reduce((acc, log) => {
if (!acc[log.date]) {
acc[log.date] = { oil: 0, gas: 0 };
}
acc[log.date].oil += log.oil;
acc[log.date].gas += log.gas;
return acc;
}, {});
const sortedDates = Object.keys(productionByDate).sort((a, b) => new Date(a) - new Date(b));
if (trendChart) trendChart.destroy();
trendChart = new Chart(trendCanvas.getContext('2d'), {
type: 'line',
data: {
labels: sortedDates,
datasets: [
{ label: 'Oil (bbl)', data: sortedDates.map(date => productionByDate[date].oil), borderColor: '#166534', backgroundColor: 'rgba(22, 101, 52, 0.1)', fill: true, yAxisID: 'yOil' },
{ label: 'Gas (MCF)', data: sortedDates.map(date => productionByDate[date].gas), borderColor: '#f97316', backgroundColor: 'rgba(249, 115, 22, 0.1)', fill: true, yAxisID: 'yGas' }
]
},
options: {
responsive: true, maintainAspectRatio: false,
scales: {
x: { type: 'time', time: { unit: 'day' } },
yOil: { type: 'linear', position: 'left', title: { display: true, text: 'Oil (bbl)' } },
yGas: { type: 'linear', position: 'right', title: { display: true, text: 'Gas (MCF)' }, grid: { drawOnChartArea: false } }
}
}
});
const productionByWell = state.logs.reduce((acc, log) => {
acc[log.wellId] = (acc[log.wellId] || 0) + log.oil;
return acc;
}, {});
const wellLabels = Object.keys(productionByWell);
const wellData = wellLabels.map(label => productionByWell[label]);
if (wellChart) wellChart.destroy();
wellChart = new Chart(wellCanvas.getContext('2d'), {
type: 'bar',
data: {
labels: wellLabels,
datasets: [{ label: 'Total Oil (bbl)', data: wellData, backgroundColor: 'rgba(202, 138, 4, 0.7)' }]
},
options: {
indexAxis: 'y', responsive: true, maintainAspectRatio: false, plugins: { legend: { display: false } }
}
});
};
const renderConfigRows = () => {
configRowsContainer.innerHTML = '';
const sortedLogs = [...state.logs].sort((a, b) => new Date(b.date) - new Date(a.date));
sortedLogs.forEach(log => {
const row = `
`;
configRowsContainer.innerHTML += row;
});
addConfigEventListeners();
};
// --- EVENT HANDLERS ---
const handleConfigChange = (e) => {
const id = parseInt(e.target.dataset.id);
const field = e.target.dataset.field;
const value = (e.target.type === 'number') ? parseInt(e.target.value, 10) || 0 : e.target.value;
const log = state.logs.find(l => l.id === id);
if (log) log[field] = value;
renderAll();
};
const handleAddLog = () => {
const newId = state.logs.length > 0 ? Math.max(...state.logs.map(l => l.id)) + 1 : 1;
const today = new Date().toISOString().split('T')[0];
state.logs.push({ id: newId, date: today, wellId: "New Well", oil: 0, gas: 0, water: 0 });
renderAll();
};
const handleRemoveLog = (e) => {
const id = parseInt(e.target.dataset.id);
state.logs = state.logs.filter(l => l.id !== id);
renderAll();
};
const addConfigEventListeners = () => {
document.querySelectorAll('.config-input').forEach(input => input.addEventListener('change', handleConfigChange));
document.querySelectorAll('.remove-log-btn').forEach(button => button.addEventListener('click', handleRemoveLog));
};
const handleDownloadPdf = () => {
const { jsPDF } = window.jspdf;
const pdfContent = document.getElementById('pdf-content');
document.querySelectorAll('.no-print').forEach(el => el.style.visibility = 'hidden');
Chart.defaults.animation = false;
html2canvas(pdfContent, { scale: 2, useCORS: true, backgroundColor: '#ffffff' }).then(canvas => {
document.querySelectorAll('.no-print').forEach(el => el.style.visibility = 'visible');
Chart.defaults.animation = true;
const imgData = canvas.toDataURL('image/png');
const pdf = new jsPDF({ orientation: 'p', unit: 'mm', format: 'a4' });
const pdfWidth = pdf.internal.pageSize.getWidth();
const imgWidth = pdfWidth - 20;
const imgHeight = canvas.height * imgWidth / canvas.width;
pdf.addImage(imgData, 'PNG', 10, 10, imgWidth, imgHeight);
pdf.save('Oil-Gas-Production-Dashboard.pdf');
});
};
// --- TABBING LOGIC ---
let currentTabIndex = 0;
const updateTabButtons = () => {
prevTabBtn.disabled = currentTabIndex === 0;
nextTabBtn.disabled = currentTabIndex === tabContents.length - 1;
};
const switchTab = (index) => {
tabButtons.forEach(btn => btn.classList.remove('active'));
tabContents.forEach(content => content.classList.remove('active'));
tabButtons[index].classList.add('active');
tabContents[index].classList.add('active');
currentTabIndex = index;
updateTabButtons();
};
tabButtons.forEach((button, index) => button.addEventListener('click', () => switchTab(index)));
prevTabBtn.addEventListener('click', () => { if (currentTabIndex > 0) switchTab(currentTabIndex - 1); });
nextTabBtn.addEventListener('click', () => { if (currentTabIndex < tabContents.length - 1) switchTab(currentTabIndex + 1); });
// --- INITIALIZATION ---
if (kpiCardsContainer && addLogBtn && downloadPdfBtn) {
addLogBtn.addEventListener('click', handleAddLog);
downloadPdfBtn.addEventListener('click', handleDownloadPdf);
renderAll();
updateTabButtons();
} else {
console.error("Essential dashboard elements could not be found.");
}
});
