@extends('layouts.app')

@section('title', __('Fuel Orders'))

@section('content')
<section class="content">

    <!-- Statistics Cards -->
    <div class="row" id="fuel-order-summary">
        <div class="col-lg-3 col-md-6 col-sm-6">
            <div class="small-box bg-blue">
                <div class="inner">
                    <h3>{{ $stats['total'] ?? 0 }}</h3>
                    <p>Total</p>
                </div>
                <div class="icon"><i class="fas fa-gas-pump"></i></div>
            </div>
        </div>

        <div class="col-lg-3 col-md-6 col-sm-6">
            <div class="small-box bg-green">
                <div class="inner">
                    <h3>{{ $stats['approved'] ?? 0 }}</h3>
                    <p>Approved</p>
                </div>
                <div class="icon"><i class="fas fa-check-circle"></i></div>
            </div>
        </div>

        <div class="col-lg-3 col-md-6 col-sm-6">
            <div class="small-box bg-yellow">
                <div class="inner">
                    <h3>{{ $stats['pending'] ?? 0 }}</h3>
                    <p>@lang('lang_v1.pending')</p>
                </div>
                <div class="icon"><i class="fas fa-clock"></i></div>
            </div>
        </div>

        <div class="col-lg-3 col-md-6 col-sm-6">
            <div class="small-box bg-red">
                <div class="inner">
                    <h3>{{ $stats['rejected'] ?? 0 }}</h3>
                    <p>@lang('Rejected')</p>
                </div>
                <div class="icon"><i class="fas fa-times-circle"></i></div>
            </div>
        </div>
    </div>

    <!-- Dashboard Charts -->
    <div class="row">
        <!-- Order Trend Chart (Last 7 Days) -->
        <div class="col-md-6">
            <div class="box box-primary">
                <div class="box-header with-border">
                    <h3 class="box-title"><i class="fas fa-chart-line"></i> Order Trend (Last 7 Days)</h3>
                </div>
                <div class="box-body">
                    <canvas id="orderTrendChart" style="height: 250px;"></canvas>
                    <div id="orderTrendChartEmpty" class="text-center" style="display: none; padding: 50px;">
                        <i class="fa fa-chart-line fa-3x text-muted"></i>
                        <p class="text-muted">No data available</p>
                    </div>
                </div>
            </div>
        </div>

        <!-- Fuel Type Distribution -->
        <div class="col-md-6">
            <div class="box box-primary">
                <div class="box-header with-border">
                    <h3 class="box-title"><i class="fas fa-chart-pie"></i> Fuel Type Distribution</h3>
                </div>
                <div class="box-body">
                    <canvas id="fuelTypeChart" style="height: 250px;"></canvas>
                </div>
            </div>
        </div>
    </div>

    <div class="row">
        <!-- Status Distribution -->
        <div class="col-md-6">
            <div class="box box-primary">
                <div class="box-header with-border">
                    <h3 class="box-title"><i class="fas fa-chart-doughnut"></i> Status Distribution</h3>
                </div>
                <div class="box-body">
                    <canvas id="statusChart" style="height: 250px;"></canvas>
                </div>
            </div>
        </div>

        <!-- Monthly Orders -->
        <div class="col-md-6">
            <div class="box box-primary">
                <div class="box-header with-border">
                    <h3 class="box-title"><i class="fas fa-chart-bar"></i> Monthly Orders</h3>
                </div>
                <div class="box-body">
                    <canvas id="monthlyChart" style="height: 250px;"></canvas>
                </div>
            </div>
        </div>
    </div>

    <div class="row">
        <div class="col-md-12">
            <div class="box box-solid">
                <div class="box-header with-border">
                    <h3 class="box-title">{{ __('fuelorder::lang.fuel_orders') }}</h3>
                    <div class="box-tools">
                        <a href="{{ route('fuel-orders.report') }}" class="btn btn-default btn-sm">{{ __('fuelorder::lang.reports') }}</a>
                        <a href="{{ route('fuel-orders.create') }}" class="btn btn-primary btn-sm">{{ __('fuelorder::lang.add') }}</a>
                    </div>
                </div>
                <div class="box-body">
                    @if(session('success'))
                        <div class="alert alert-success">{{ session('success') }}</div>
                    @endif

                    <div class="table-responsive">
                        <table class="table table-bordered table-striped">
                            <thead>
                                <tr>
                                    <th>{{ __('fuelorder::lang.ref_no') }}</th>
                                    <th>{{ __('fuelorder::lang.date') }}</th>
                                    <th>{{ __('fuelorder::lang.fuel_type') }}</th>
                                    <th class="text-right">{{ __('fuelorder::lang.liters') }}</th>
                                    <th class="text-right">{{ __('fuelorder::lang.total') }}</th>
                                    <th>{{ __('fuelorder::lang.status') }}</th>
                                    <th class="text-right">{{ __('fuelorder::lang.actions') }}</th>
                                </tr>
                            </thead>
                            <tbody>
                                @forelse($orders as $o)
                                    <tr>
                                        <td>{{ $o->reference_no }}</td>
                                        <td>{{ optional($o->order_date)->format('Y-m-d') }}</td>
                                        <td>{{ $o->fuel_type }}</td>
                                        <td class="text-right">{{ number_format($o->liters, 2) }}</td>
                                        <td class="text-right">{{ number_format($o->total_amount, 2) }}</td>
                                        <td>
                                            @if($o->status === 'approved')
                                                <span class="label bg-green">{{ __('fuelorder::lang.approved') }}</span>
                                            @elseif($o->status === 'pending')
                                                <span class="label bg-yellow">{{ __('fuelorder::lang.pending') }}</span>
                                            @else
                                                <span class="label bg-gray">{{ ucfirst($o->status) }}</span>
                                            @endif
                                        </td>
                                        <td class="text-right">
                                            <a href="{{ route('fuel-orders.show', $o->id) }}" class="btn btn-link btn-xs">{{ __('fuelorder::lang.view') }}</a>

                                            @if($o->status === 'pending' && auth()->check() && (auth()->id() === $o->requested_by || (method_exists(auth()->user(), 'hasRole') && auth()->user()->hasRole('Admin')) || (isset(auth()->user()->is_admin) && auth()->user()->is_admin) || auth()->id() === 1))
                                                <form action="{{ route('fuel-orders.destroy', $o->id) }}" method="POST" style="display:inline" onsubmit="return confirm('{{ __('fuelorder::lang.delete_order_confirmation') }}')">
                                                    @csrf
                                                    @method('DELETE')
                                                    <button class="btn btn-link text-danger btn-xs">{{ __('fuelorder::lang.delete') }}</button>
                                                </form>
                                            @endif

                                            @if($o->status === 'pending' && auth()->check() && ((isset(auth()->user()->is_admin) && auth()->user()->is_admin) || (method_exists(auth()->user(), 'hasRole') && auth()->user()->hasRole('Admin')) || auth()->id() === 1))
                                                <a href="{{ route('fuel-orders.approveForm', $o->id) }}" class="btn btn-link text-success btn-xs">{{ __('fuelorder::lang.approve') }}</a>
                                            @endif
                                        </td>
                                    </tr>
                                @empty
                                    <tr>
                                        <td colspan="7" class="text-center text-muted">{{ __('fuelorder::lang.no_data_found') }}</td>
                                    </tr>
                                @endforelse
                            </tbody>
                        </table>
                    </div>

                    <div class="text-center">{{ $orders->links() }}</div>
                </div>
            </div>
        </div>
    </div>

</section>
@endsection

@push('after_scripts')
<script src="https://cdn.jsdelivr.net/npm/chart.js@3.9.1/dist/chart.min.js"></script>
<script>
$(document).ready(function() {
    // Check if Chart.js is loaded
    if (typeof Chart === 'undefined') {
        console.error('Chart.js not loaded!');
        return;
    }
    
    console.log('Initializing charts...');
    
    // Order Trend Chart (Line Chart)
    try {
        const orderTrendCtx = document.getElementById('orderTrendChart');
        if (orderTrendCtx) {
            const last7DaysData = @json($dashboardStats['last7Days'] ?? collect());
            const labels = last7DaysData.length > 0 ? last7DaysData.map(function(item) { return item.date; }) : ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul'];
            const data = last7DaysData.length > 0 ? last7DaysData.map(function(item) { return item.count; }) : [0, 0, 0, 0, 0, 0, 0];
            
            new Chart(orderTrendCtx, {
            type: 'line',
            data: {
                labels: labels,
                datasets: [{
                    label: 'Orders',
                    data: data,
                    borderColor: 'rgb(60, 141, 188)',
                    backgroundColor: 'rgba(60, 141, 188, 0.2)',
                    borderWidth: 2,
                    fill: true,
                    tension: 0.4
                }]
            },
            options: {
                responsive: true,
                maintainAspectRatio: false,
                plugins: {
                    legend: {
                        display: false
                    }
                },
                scales: {
                    y: {
                        beginAtZero: true
                    }
                }
            }
        });
        } catch(e) { console.error('Error creating order trend chart:', e); }
    }

    // Fuel Type Distribution (Pie Chart)
    try {
        const fuelTypeCtx = document.getElementById('fuelTypeChart');
        if (fuelTypeCtx) {
        const fuelTypesData = @json($dashboardStats['fuelTypes'] ?? []);
        const fuelTypes = fuelTypesData.length > 0 ? fuelTypesData : [{'type': 'No Data', 'count': 1}];
        
        new Chart(fuelTypeCtx, {
            type: 'pie',
            data: {
                labels: fuelTypes.map(function(item) { return item.type; }),
                datasets: [{
                    data: fuelTypes.map(function(item) { return item.count; }),
                    backgroundColor: [
                        'rgba(54, 162, 235, 0.8)',
                        'rgba(255, 99, 132, 0.8)',
                        'rgba(255, 206, 86, 0.8)',
                        'rgba(75, 192, 192, 0.8)',
                        'rgba(153, 102, 255, 0.8)',
                        'rgba(255, 159, 64, 0.8)'
                    ],
                    borderColor: '#fff',
                    borderWidth: 2
                }]
            },
            options: {
                responsive: true,
                maintainAspectRatio: false,
                plugins: {
                    legend: {
                        position: 'bottom'
                    }
                }
            }
        });
        } catch(e) { console.error('Error creating fuel type chart:', e); }
    }

    // Status Distribution (Doughnut Chart)
    try {
        const statusCtx = document.getElementById('statusChart');
        if (statusCtx) {
        const statusDataRaw = @json($dashboardStats['statusData'] ?? []);
        const statusData = statusDataRaw.length > 0 ? statusDataRaw : [
            {'status': 'Approved', 'count': 0},
            {'status': 'Pending', 'count': 0},
            {'status': 'Rejected', 'count': 0}
        ];
        
        new Chart(statusCtx, {
            type: 'doughnut',
            data: {
                labels: statusData.map(function(item) { return item.status; }),
                datasets: [{
                    data: statusData.map(function(item) { return item.count; }),
                    backgroundColor: [
                        'rgba(40, 167, 69, 0.8)',  // Green for Approved
                        'rgba(255, 193, 7, 0.8)',  // Yellow for Pending
                        'rgba(220, 53, 69, 0.8)'   // Red for Rejected
                    ],
                    borderColor: '#fff',
                    borderWidth: 2
                }]
            },
            options: {
                responsive: true,
                maintainAspectRatio: false,
                plugins: {
                    legend: {
                        position: 'bottom'
                    }
                }
            }
        });
        } catch(e) { console.error('Error creating status chart:', e); }
    }

    // Monthly Orders (Bar Chart)
    try {
        const monthlyCtx = document.getElementById('monthlyChart');
        if (monthlyCtx) {
        const monthlyDataRaw = @json($dashboardStats['monthlyData'] ?? []);
        const monthlyData = monthlyDataRaw.length > 0 ? monthlyDataRaw : [
            {'month': 'No Data', 'count': 0}
        ];
        
        new Chart(monthlyCtx, {
            type: 'bar',
            data: {
                labels: monthlyData.map(function(item) { return item.month; }),
                datasets: [{
                    label: 'Orders',
                    data: monthlyData.map(function(item) { return item.count; }),
                    backgroundColor: 'rgba(60, 141, 188, 0.8)',
                    borderColor: 'rgb(60, 141, 188)',
                    borderWidth: 1
                }]
            },
            options: {
                responsive: true,
                maintainAspectRatio: false,
                plugins: {
                    legend: {
                        display: false
                    }
                },
                scales: {
                    y: {
                        beginAtZero: true
                    }
                }
            }
        });
        } catch(e) { console.error('Error creating monthly chart:', e); }
    }
    
    console.log('All charts initialized.');
});
</script>
@endpush