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feat: enhance dashboard API to generate continuous sample data and calculate cumulative values for project timelines

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RKWojs
2025-11-14 15:06:36 +01:00
parent a1f1b33e44
commit d3fa4df621
1 changed files with 85 additions and 23 deletions
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104
src/app/api/dashboard/route.js
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@@ -65,20 +65,36 @@ export async function GET(request) {
let chartData;
let summary;
if (completedProjects.length === 0) {
chartData = [
{ month: 'Jan 2024', value: 50000, cumulative: 50000 },
{ month: 'Feb 2024', value: 75000, cumulative: 125000 },
{ month: 'Mar 2024', value: 60000, cumulative: 185000 },
{ month: 'Apr 2024', value: 80000, cumulative: 265000 },
{ month: 'May 2024', value: 95000, cumulative: 360000 },
{ month: 'Jun 2024', value: 70000, cumulative: 430000 },
{ month: 'Jul 2024', value: 85000, cumulative: 515000 },
{ month: 'Aug 2024', value: 90000, cumulative: 605000 },
{ month: 'Sep 2024', value: 78000, cumulative: 683000 },
{ month: 'Oct 2024', value: 92000, cumulative: 775000 },
{ month: 'Nov 2024', value: 88000, cumulative: 863000 },
{ month: 'Dec 2024', value: 95000, cumulative: 958000 }
];
// Generate continuous sample data from Jan 2024 to current month
const currentDate = new Date();
const startDate = new Date(2024, 0, 1); // Jan 2024
chartData = [];
let cumulative = 0;
let tempDate = new Date(startDate);
while (tempDate <= currentDate) {
const monthName = tempDate.toLocaleDateString('en-US', { year: 'numeric', month: 'short' });
let monthlyValue = 0;
// Add some sample values for certain months
if (tempDate.getMonth() === 0 && tempDate.getFullYear() === 2024) monthlyValue = 50000; // Jan 2024
else if (tempDate.getMonth() === 1 && tempDate.getFullYear() === 2024) monthlyValue = 75000; // Feb 2024
else if (tempDate.getMonth() === 2 && tempDate.getFullYear() === 2024) monthlyValue = 60000; // Mar 2024
else if (tempDate.getMonth() === 7 && tempDate.getFullYear() === 2024) monthlyValue = 10841; // Aug 2024 (real data)
else if (tempDate.getMonth() === 8 && tempDate.getFullYear() === 2024) monthlyValue = 18942; // Sep 2024
else if (tempDate.getMonth() === 9 && tempDate.getFullYear() === 2024) monthlyValue = 13945; // Oct 2024
else if (tempDate.getMonth() === 10 && tempDate.getFullYear() === 2024) monthlyValue = 12542; // Nov 2024
cumulative += monthlyValue;
chartData.push({
month: monthName,
value: monthlyValue,
cumulative: cumulative
});
tempDate.setMonth(tempDate.getMonth() + 1);
}
summary = {
total: {
realisedValue: 958000,
@@ -123,24 +139,70 @@ export async function GET(request) {
monthlyData[monthKey].value += projectValue;
});
// Second pass: calculate cumulative values
// Generate continuous timeline from earliest completion to current date
let startDate = new Date();
let endDate = new Date();
if (completedProjects.length > 0) {
// Find earliest completion date
const earliestCompletion = completedProjects.reduce((earliest, project) => {
const projectDate = new Date(project.completion_date);
return projectDate < earliest ? projectDate : earliest;
}, new Date());
startDate = new Date(earliestCompletion.getFullYear(), earliestCompletion.getMonth(), 1);
} else {
// If no completed projects, start from 6 months ago
startDate = new Date();
startDate.setMonth(startDate.getMonth() - 6);
startDate = new Date(startDate.getFullYear(), startDate.getMonth(), 1);
}
// Generate all months from start to current
const allMonths = {};
let currentDate = new Date(startDate);
while (currentDate <= endDate) {
const monthKey = `${currentDate.getFullYear()}-${String(currentDate.getMonth() + 1).padStart(2, '0')}`;
const monthName = currentDate.toLocaleDateString('en-US', { year: 'numeric', month: 'short' });
allMonths[monthKey] = {
month: monthName,
value: monthlyData[monthKey]?.value || 0
};
currentDate.setMonth(currentDate.getMonth() + 1);
}
// Calculate cumulative values
let cumulativeValue = 0;
const sortedMonths = Object.keys(monthlyData).sort((a, b) => a.localeCompare(b));
const sortedMonths = Object.keys(allMonths).sort((a, b) => a.localeCompare(b));
sortedMonths.forEach(monthKey => {
cumulativeValue += monthlyData[monthKey].value;
monthlyData[monthKey].cumulative = cumulativeValue;
cumulativeValue += allMonths[monthKey].value;
allMonths[monthKey].cumulative = cumulativeValue;
});
// Convert to array
chartData = sortedMonths.map(monthKey => ({
month: monthlyData[monthKey].month,
value: Math.round(monthlyData[monthKey].value),
cumulative: Math.round(monthlyData[monthKey].cumulative)
month: allMonths[monthKey].month,
value: Math.round(allMonths[monthKey].value),
cumulative: Math.round(allMonths[monthKey].cumulative)
}));
summary = {
total: {
realisedValue: Math.round(realisedValue),
unrealisedValue: Math.round(unrealisedValue)
},
byType: Object.fromEntries(
Object.entries(typeSummary).map(([type, data]) => [
type,
{
realisedValue: Math.round(data.realisedValue),
unrealisedValue: Math.round(data.unrealisedValue)
}
])
)
};
}