@extends('layouts.admin')

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

@section('content')
<div class="container-fluid">
    <!-- Page Header -->
    <div class="d-flex justify-content-between align-items-center mb-4">
        <div>
            <h1 class="h3 mb-0 text-gray-800">Departments Report</h1>
            <p class="text-muted">Department-wise performance and activity analysis</p>
        </div>
        <div>
            <a href="{{ route('admin.reports.index') }}" class="btn btn-outline-secondary">
                <i class="fas fa-arrow-left me-2"></i>Back to Reports
            </a>
        </div>
    </div>

    <!-- Summary Statistics -->
    <div class="row">
        <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">
                                Total Departments
                            </div>
                            <div class="h5 mb-0 font-weight-bold text-gray-800">
                                {{ $reportData['total_departments'] }}
                            </div>
                        </div>
                        <div class="col-auto">
                            <i class="fas fa-building fa-2x text-gray-300"></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">
                                Active Departments
                            </div>
                            <div class="h5 mb-0 font-weight-bold text-gray-800">
                                {{ $reportData['departments_by_status']['active'] ?? 0 }}
                            </div>
                        </div>
                        <div class="col-auto">
                            <i class="fas fa-check-circle fa-2x text-gray-300"></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 Positions
                            </div>
                            <div class="h5 mb-0 font-weight-bold text-gray-800">
                                {{ $reportData['department_statistics']->sum('total_positions') }}
                            </div>
                        </div>
                        <div class="col-auto">
                            <i class="fas fa-briefcase fa-2x text-gray-300"></i>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class="col-xl-3 col-md-6 mb-4">
            <div class="card border-left-warning 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-warning text-uppercase mb-1">
                                Total Applications
                            </div>
                            <div class="h5 mb-0 font-weight-bold text-gray-800">
                                {{ $reportData['department_statistics']->sum('total_applications') }}
                            </div>
                        </div>
                        <div class="col-auto">
                            <i class="fas fa-file-alt fa-2x text-gray-300"></i>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

    <!-- Department Statistics -->
    <div class="row">
        <div class="col-lg-12">
            <div class="card shadow mb-4">
                <div class="card-header py-3">
                    <h6 class="m-0 font-weight-bold text-primary">Department Performance Overview</h6>
                </div>
                <div class="card-body">
                    @if($reportData['department_statistics']->count() > 0)
                        <div class="table-responsive">
                            <table class="table table-bordered">
                                <thead>
                                    <tr>
                                        <th>Department</th>
                                        <th>Total Positions</th>
                                        <th>Active Positions</th>
                                        <th>Total Applications</th>
                                        <th>Avg Applications/Position</th>
                                        <th>Performance</th>
                                    </tr>
                                </thead>
                                <tbody>
                                    @foreach($reportData['department_statistics'] as $stat)
                                    <tr>
                                        <td>
                                            <strong>{{ $stat['department'] }}</strong>
                                        </td>
                                        <td>
                                            <span class="badge bg-primary">{{ $stat['total_positions'] }}</span>
                                        </td>
                                        <td>
                                            <span class="badge bg-success">{{ $stat['active_positions'] }}</span>
                                        </td>
                                        <td>
                                            <span class="badge bg-info">{{ $stat['total_applications'] }}</span>
                                        </td>
                                        <td>
                                            <span class="badge bg-warning">{{ $stat['avg_applications_per_position'] }}</span>
                                        </td>
                                        <td>
                                            @php
                                                $performance = 'Low';
                                                $badgeClass = 'secondary';
                                                if ($stat['avg_applications_per_position'] >= 10) {
                                                    $performance = 'High';
                                                    $badgeClass = 'success';
                                                } elseif ($stat['avg_applications_per_position'] >= 5) {
                                                    $performance = 'Medium';
                                                    $badgeClass = 'warning';
                                                }
                                            @endphp
                                            <span class="badge bg-{{ $badgeClass }}">{{ $performance }}</span>
                                        </td>
                                    </tr>
                                    @endforeach
                                </tbody>
                            </table>
                        </div>
                    @else
                        <p class="text-muted">No department data available.</p>
                    @endif
                </div>
            </div>
        </div>
    </div>

    <!-- Most Active Departments -->
    <div class="row">
        <div class="col-lg-6">
            <div class="card shadow mb-4">
                <div class="card-header py-3">
                    <h6 class="m-0 font-weight-bold text-success">Most Active Departments</h6>
                </div>
                <div class="card-body">
                    @if($reportData['most_active_departments']->count() > 0)
                        @foreach($reportData['most_active_departments'] as $department)
                        @php
                            $totalApplications = $department->advertisements->sum(function($ad) {
                                return $ad->applications->count();
                            });
                        @endphp
                        <div class="d-flex justify-content-between align-items-center mb-3">
                            <div>
                                <div class="font-weight-bold">{{ $department->name }}</div>
                                <div class="text-muted small">
                                    {{ $department->advertisements->count() }} positions
                                </div>
                            </div>
                            <div class="text-right">
                                <div class="badge bg-success">{{ $totalApplications }} applications</div>
                                <div class="text-muted small">
                                    {{ $department->advertisements->where('status', 'published')->count() }} active
                                </div>
                            </div>
                        </div>
                        @endforeach
                    @else
                        <p class="text-muted">No active departments found.</p>
                    @endif
                </div>
            </div>
        </div>

        <!-- Department Status Distribution -->
        <div class="col-lg-6">
            <div class="card shadow mb-4">
                <div class="card-header py-3">
                    <h6 class="m-0 font-weight-bold text-info">Department Status Distribution</h6>
                </div>
                <div class="card-body">
                    @if($reportData['departments_by_status']->count() > 0)
                        @foreach($reportData['departments_by_status'] as $status => $count)
                        <div class="d-flex justify-content-between align-items-center mb-2">
                            <span class="text-capitalize">{{ str_replace('_', ' ', $status) }}</span>
                            <div>
                                <span class="badge bg-primary">{{ $count }}</span>
                                <span class="text-muted small">
                                    ({{ $reportData['total_departments'] > 0 ? round(($count / $reportData['total_departments']) * 100, 1) : 0 }}%)
                                </span>
                            </div>
                        </div>
                        @endforeach
                    @else
                        <p class="text-muted">No status data available.</p>
                    @endif
                </div>
            </div>
        </div>
    </div>

    <!-- Detailed Department Analysis -->
    <div class="row">
        <div class="col-lg-12">
            <div class="card shadow mb-4">
                <div class="card-header py-3">
                    <h6 class="m-0 font-weight-bold text-warning">Detailed Department Analysis</h6>
                </div>
                <div class="card-body">
                    @if($reportData['departments']->count() > 0)
                        <div class="row">
                            @foreach($reportData['departments'] as $department)
                            @php
                                $totalApplications = $department->advertisements->sum(function($ad) {
                                    return $ad->applications->count();
                                });
                                $activePositions = $department->advertisements->where('status', 'published')->count();
                                $avgApplications = $department->advertisements->count() > 0 
                                    ? round($totalApplications / $department->advertisements->count(), 1) 
                                    : 0;
                            @endphp
                            <div class="col-lg-6 col-md-12 mb-4">
                                <div class="card border-left-info h-100">
                                    <div class="card-body">
                                        <h5 class="card-title text-primary">{{ $department->name }}</h5>
                                        <div class="row text-center">
                                            <div class="col-6">
                                                <div class="h4 mb-0 text-gray-800">{{ $department->advertisements->count() }}</div>
                                                <div class="text-xs text-muted">Total Positions</div>
                                            </div>
                                            <div class="col-6">
                                                <div class="h4 mb-0 text-success">{{ $activePositions }}</div>
                                                <div class="text-xs text-muted">Active Positions</div>
                                            </div>
                                        </div>
                                        <hr>
                                        <div class="row text-center">
                                            <div class="col-6">
                                                <div class="h4 mb-0 text-info">{{ $totalApplications }}</div>
                                                <div class="text-xs text-muted">Total Applications</div>
                                            </div>
                                            <div class="col-6">
                                                <div class="h4 mb-0 text-warning">{{ $avgApplications }}</div>
                                                <div class="text-xs text-muted">Avg per Position</div>
                                            </div>
                                        </div>
                                        @if($department->description)
                                        <hr>
                                        <p class="card-text text-muted small">{{ Str::limit($department->description, 100) }}</p>
                                        @endif
                                    </div>
                                </div>
                            </div>
                            @endforeach
                        </div>
                    @else
                        <p class="text-muted">No departments found.</p>
                    @endif
                </div>
            </div>
        </div>
    </div>
</div>
@endsection