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dhanabalan
189
app/Filament/Widgets/ProductionLineStopChart.php
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189
app/Filament/Widgets/ProductionLineStopChart.php
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<?php
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namespace App\Filament\Widgets;
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use Filament\Widgets\ChartWidget;
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class ProductionLineStopChart extends ChartWidget
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{
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protected static ?string $heading = 'Production Line Stop Chart';
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protected static ?string $maxHeight = '250px';
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protected function getData(): array
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{
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$activeFilter = $this->filter;
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$selectedPlant = session('selected_plant');
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$selectedLine = session('selected_line');
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if (!$selectedPlant || !$selectedLine)
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{
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return [
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'datasets' => [],
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'labels' => [],
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];
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}
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// Set time range based on active filter
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if ($activeFilter === 'yesterday') {
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$startDate = now()->subDay()->setTime(8, 0, 0);
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$endDate = now()->setTime(8, 0, 0);
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} elseif ($activeFilter === 'this_week') {
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$startDate = now()->startOfWeek()->setTime(8, 0, 0);
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$endDate = now()->endOfWeek()->addDay()->setTime(8, 0, 0);
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} elseif ($activeFilter === 'this_month') {
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$startDate = now()->startOfMonth();
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$endDate = now()->endOfMonth();
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} else {
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$startDate = now()->setTime(8, 0, 0);
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$endDate = now()->copy()->addDay()->setTime(8, 0, 0);
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}
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// Fetch stop reason data
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// treats minutes as a visual decimal (e.g., 15 mins = 0.15)
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$query = \DB::table('production_line_stops')
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->join('line_stops as ls', 'production_line_stops.linestop_id', '=', 'ls.id')
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->join('lines', 'production_line_stops.line_id', '=', 'lines.id')
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->join('plants', 'production_line_stops.plant_id', '=', 'plants.id')
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->select(
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'ls.code',
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'ls.reason',
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\DB::raw("
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SUM(production_line_stops.stop_hour) as total_stop_hours,
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SUM(production_line_stops.stop_min) as total_stop_minutes
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")
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)
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->when($selectedPlant, fn($q) => $q->where('plants.id', $selectedPlant))
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->when($selectedLine, fn($q) => $q->where('lines.id', $selectedLine))
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->whereBetween('production_line_stops.created_at', [$startDate, $endDate])
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->groupBy('ls.code', 'ls.reason')
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//->orderByDesc('total_hours')
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->get();
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// Handle empty data gracefully
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if ($query->isEmpty()) {
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return [
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'datasets' => [[
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'label' => 'Line Stop Reasons',
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'data' => [1],
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'backgroundColor' => ['rgba(200, 200, 200, 0.4)'],
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'borderColor' => ['rgba(200, 200, 200, 1)'],
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'borderWidth' => 1,
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]],
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'labels' => ['No Data'],
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];
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}
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$labels = [];
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$data = [];
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$backgroundColors = [];
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$borderColors = [];
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function generateColor(string $key, float $opacity): string {
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// Use a stable hash of the key, no randomness
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$hash = md5($key);
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// Get the RGB components from the hash
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$r = hexdec(substr($hash, 0, 2)); // Red component
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$g = hexdec(substr($hash, 2, 2)); // Green component
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$b = hexdec(substr($hash, 4, 2)); // Blue component
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// Avoid deep green colors for the `code`
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if ($g > 150 && $g < 255) {
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// Adjust green component if it's in the deep green range
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$g = 150; // Assign a fixed, safe value for green
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}
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// Return the color as rgba with the specified opacity
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return "rgba($r, $g, $b, $opacity)";
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}
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$totalStopMinutes = 0;
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foreach ($query as $row) {
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$code = $row->code;
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$reason = $row->reason;
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$stopHours = $row->total_stop_hours;
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$stopMinutes = $row->total_stop_minutes;
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$visualTotal = $stopHours + ($stopMinutes / 100);
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$codeLabel = "$code - $reason";
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$labels[] = $codeLabel;
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$data[] = $visualTotal;
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$backgroundColors[] = generateColor($code, 0.7); // Unique color for each stop code
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$borderColors[] = generateColor($code, 1.0);
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// Accumulate total stop time (in minutes)
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$totalStopMinutes += ($stopHours * 60) + $stopMinutes;
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}
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// Calculate remaining time (1440 minutes = 24 hours)
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$remainingMinutes = 1440 - $totalStopMinutes;
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$runtimeHours = floor($remainingMinutes / 60);
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$runtimeMinutes = $remainingMinutes % 60;
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$runtimeVisual = $runtimeHours + ($runtimeMinutes / 100);
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// Add runtime slice with green color (either light or dark green)
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$labels[] = 'Available Runtime';
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$data[] = $runtimeVisual;
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$backgroundColors[] = 'rgba(47, 218, 47, 0.94)'; // Green for runtime
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$borderColors[] = 'rgba(75, 192, 75, 1)';
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return [
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'datasets' => [[
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'label' => 'Line Stop Durations (hrs)',
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'data' => $data,
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'backgroundColor' => $backgroundColors,
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'borderColor' => $borderColors,
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'borderWidth' => 1,
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]],
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'labels' => $labels,
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];
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}
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protected function getType(): string
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{
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return 'pie';
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}
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protected function getFilters(): ?array
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{
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return [
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'today' => 'Today',
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'yesterday' => 'Yesterday',
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];
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}
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protected function getOptions(): array
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{
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return [
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// 'responsive' => true,
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// 'plugins' => [
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// 'legend' => [
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// 'position' => 'bottom',
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// ],
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// 'tooltip' => [
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// 'enabled' => true, // Tooltips enabled on hover
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// ],
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// ],
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'plugins' => [
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'datalabels' => false,
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],
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'scales' => [
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'x' => [
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'display' => false, // Disable x-axis
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],
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'y' => [
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'display' => false, // Disable y-axis
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],
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],
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];
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}
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public static function canView(): bool
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{
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// Only show on HourlyProduction page
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return request()->routeIs('filament.pages.production-line-stop-count');
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}
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}
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