@extends('layouts.app')

@section('title', 'Customer Report')

@section('content')
<div class="container-fluid">
    <div class="d-flex justify-content-between align-items-center mb-4">
        <h1 class="h3 mb-0 text-gray-800">
            <i class="bi bi-people me-2"></i>Customer Report
        </h1>
        <a href="{{ route('reports.index') }}" class="btn btn-secondary">
            <i class="bi bi-arrow-left me-1"></i>Back to Reports
        </a>
    </div>

    <!-- Filter Form -->
    <div class="card mb-4">
        <div class="card-body">
            <form method="GET" action="{{ route('reports.customer-report') }}" class="row g-3">
                <div class="col-md-4">
                    <label for="start_date" class="form-label">Start Date</label>
                    <input type="date" class="form-control" id="start_date" name="start_date" 
                           value="{{ $startDate }}">
                </div>
                <div class="col-md-4">
                    <label for="end_date" class="form-label">End Date</label>
                    <input type="date" class="form-control" id="end_date" name="end_date" 
                           value="{{ $endDate }}">
                </div>
                <div class="col-md-4">
                    <label class="form-label">&nbsp;</label>
                    <div class="d-flex flex-column flex-md-row gap-2">
                        <button type="submit" class="btn btn-primary">
                            <i class="bi bi-funnel me-1"></i>Filter
                        </button>
                        <a href="{{ route('reports.export-csv', ['report' => 'customer-report'] + request()->all()) }}" 
                           class="btn btn-success">
                            <i class="fas fa-download me-1"></i>CSV
                        </a>
                        <a href="{{ route('reports.customer-report.pdf', request()->all()) }}" 
                           class="btn btn-danger">
                            <i class="fas fa-file-pdf me-1"></i>PDF
                        </a>
                    </div>
                </div>
            </form>
        </div>
    </div>

    <!-- Summary Cards -->
    <div class="row mb-4">
        <div class="col-xl-3 col-md-6 mb-4">
            <div class="card border-left-primary shadow h-100 py-2">
                <div class="card-body">
                    <div class="row no-gutters align-items-center">
                        <div class="col mr-2">
                            <div class="text-xs font-weight-bold text-primary text-uppercase mb-1">
                                Active Customers</div>
                            <div class="h5 mb-0 font-weight-bold text-gray-800">
                                {{ $customers->count() }}
                            </div>
                        </div>
                        <div class="col-auto">
                            <i class="bi bi-people text-primary fa-2x"></i>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class="col-xl-3 col-md-6 mb-4">
            <div class="card border-left-success shadow h-100 py-2">
                <div class="card-body">
                    <div class="row no-gutters align-items-center">
                        <div class="col mr-2">
                            <div class="text-xs font-weight-bold text-success text-uppercase mb-1">
                                Total Income</div>
                            <div class="h5 mb-0 font-weight-bold text-gray-800">
                                LKR {{ number_format($customers->sum('total_income'), 2) }}
                            </div>
                        </div>
                        <div class="col-auto">
                            <i class="bi bi-arrow-up-circle text-success fa-2x"></i>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class="col-xl-3 col-md-6 mb-4">
            <div class="card border-left-danger shadow h-100 py-2">
                <div class="card-body">
                    <div class="row no-gutters align-items-center">
                        <div class="col mr-2">
                            <div class="text-xs font-weight-bold text-danger text-uppercase mb-1">
                                Total Expenses</div>
                            <div class="h5 mb-0 font-weight-bold text-gray-800">
                                LKR {{ number_format($customers->sum('total_expense'), 2) }}
                            </div>
                        </div>
                        <div class="col-auto">
                            <i class="bi bi-arrow-down-circle text-danger fa-2x"></i>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class="col-xl-3 col-md-6 mb-4">
            <div class="card border-left-info shadow h-100 py-2">
                <div class="card-body">
                    <div class="row no-gutters align-items-center">
                        <div class="col mr-2">
                            <div class="text-xs font-weight-bold text-info text-uppercase mb-1">
                                Total Transactions</div>
                            <div class="h5 mb-0 font-weight-bold text-gray-800">
                                {{ $customers->sum('transaction_count') }}
                            </div>
                        </div>
                        <div class="col-auto">
                            <i class="bi bi-list-ul text-info fa-2x"></i>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <!-- Top Customers Chart -->
    <div class="row mb-4">
        <div class="col-xl-8 col-lg-7">
            <div class="card shadow mb-4">
                <div class="card-header py-3">
                    <h6 class="m-0 font-weight-bold text-primary">Top Customers by Revenue</h6>
                </div>
                <div class="card-body">
                    <canvas id="customerChart"></canvas>
                </div>
            </div>
        </div>

        <div class="col-xl-4 col-lg-5">
            <div class="card shadow mb-4">
                <div class="card-header py-3">
                    <h6 class="m-0 font-weight-bold text-primary">Customer Performance</h6>
                </div>
                <div class="card-body">
                    @foreach($customers->take(5) as $customer)
                    <div class="mb-3">
                        <div class="d-flex justify-content-between">
                            <span class="small font-weight-bold">{{ $customer->name }}</span>
                            <span class="small">LKR {{ number_format($customer->total_income, 2) }}</span>
                        </div>
                        <div class="progress" style="height: 10px;">
                            <div class="progress-bar bg-success" role="progressbar" 
                                 style="width: {{ $customers->max('total_income') > 0 ? ($customer->total_income / $customers->max('total_income')) * 100 : 0 }}%">
                            </div>
                        </div>
                    </div>
                    @endforeach
                </div>
            </div>
        </div>
    </div>

    <!-- Customer Table -->
    <div class="card shadow mb-4">
        <div class="card-header py-3">
            <h6 class="m-0 font-weight-bold text-primary">Customer Details</h6>
        </div>
        <div class="card-body">
            <div class="table-responsive">
                <table class="table table-bordered" width="100%" cellspacing="0">
                    <thead>
                        <tr>
                            <th>Customer Name</th>
                            <th>Email</th>
                            <th>Phone</th>
                            <th>Total Income</th>
                            <th>Total Expenses</th>
                            <th>Net Revenue</th>
                            <th>Transactions</th>
                            <th>Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        @forelse($customers as $customer)
                        <tr>
                            <td>
                                <strong>{{ $customer->name }}</strong>
                                @if(!$customer->is_active)
                                    <span class="badge bg-secondary ms-1">Inactive</span>
                                @endif
                            </td>
                            <td>{{ $customer->email }}</td>
                            <td>{{ $customer->phone }}</td>
                            <td class="text-success">LKR {{ number_format($customer->total_income, 2) }}</td>
                            <td class="text-danger">LKR {{ number_format($customer->total_expense, 2) }}</td>
                            <td class="text-{{ ($customer->total_income - $customer->total_expense) >= 0 ? 'success' : 'danger' }}">
                                LKR {{ number_format($customer->total_income - $customer->total_expense, 2) }}
                            </td>
                            <td>{{ $customer->transaction_count }}</td>
                            <td>
                                <a href="{{ route('customers.show', $customer->id) }}" class="btn btn-sm btn-outline-primary">
                                    <i class="bi bi-eye"></i>
                                </a>
                            </td>
                        </tr>
                        @empty
                        <tr>
                            <td colspan="8" class="text-center">No customers found with transactions in the selected period.</td>
                        </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </div>
    </div>
</div>

<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>
<script>
// Customer Chart
const customerCtx = document.getElementById('customerChart').getContext('2d');
const topCustomers = {!! json_encode($customers->take(10)) !!};

const customerChart = new Chart(customerCtx, {
    type: 'bar',
    data: {
        labels: topCustomers.map(customer => customer.name),
        datasets: [{
            label: 'Income',
            data: topCustomers.map(customer => customer.total_income),
            backgroundColor: 'rgba(28, 200, 138, 0.8)',
            borderColor: 'rgb(28, 200, 138)',
            borderWidth: 1
        }, {
            label: 'Expenses',
            data: topCustomers.map(customer => customer.total_expense),
            backgroundColor: 'rgba(231, 74, 59, 0.8)',
            borderColor: 'rgb(231, 74, 59)',
            borderWidth: 1
        }]
    },
    options: {
        responsive: true,
        scales: {
            y: {
                beginAtZero: true,
                ticks: {
                    callback: function(value) {
                        return 'LKR ' + value.toLocaleString();
                    }
                }
            }
        },
        plugins: {
            legend: {
                position: 'top'
            },
            tooltip: {
                callbacks: {
                    label: function(context) {
                        return context.dataset.label + ': LKR ' + context.parsed.y.toLocaleString();
                    }
                }
            }
        }
    }
});
</script>
@endsection