@extends('layouts.app')

@section('title', 'Delivery Zones')

@section('content')
<div class="bg-gray-50 min-h-screen py-8">
    <div class="container mx-auto px-4">
        <div class="flex justify-between items-center mb-8">
            <div>
                <h1 class="text-3xl font-bold text-gray-900">Delivery Zones</h1>
                <p class="text-gray-600">Manage delivery rates based on distance</p>
            </div>
            <button onclick="document.getElementById('addZoneModal').classList.remove('hidden')" 
                class="bg-blue-600 text-white px-6 py-2 rounded-lg hover:bg-blue-700 transition">
                + Add Zone
            </button>
        </div>

        @if(session('success'))
            <div class="bg-green-50 text-green-600 px-4 py-3 rounded-lg mb-6">{{ session('success') }}</div>
        @endif

        <!-- Zones Table -->
        <div class="bg-white rounded-xl shadow-sm overflow-hidden">
            <div class="overflow-x-auto">
                <table class="w-full">
                    <thead class="bg-gray-50">
                        <tr>
                            <th class="px-6 py-4 text-left text-sm font-semibold text-gray-900">Zone Name</th>
                            <th class="px-6 py-4 text-center text-sm font-semibold text-gray-900">Distance Range (km)</th>
                            <th class="px-6 py-4 text-right text-sm font-semibold text-gray-900">Base Rate</th>
                            <th class="px-6 py-4 text-right text-sm font-semibold text-gray-900">Rate/km</th>
                            <th class="px-6 py-4 text-right text-sm font-semibold text-gray-900">Rate/kg</th>
                            <th class="px-6 py-4 text-center text-sm font-semibold text-gray-900">Est. Days</th>
                            <th class="px-6 py-4 text-center text-sm font-semibold text-gray-900">Status</th>
                            <th class="px-6 py-4 text-right text-sm font-semibold text-gray-900">Actions</th>
                        </tr>
                    </thead>
                    <tbody class="divide-y divide-gray-200">
                        @forelse($zones as $zone)
                            <tr class="hover:bg-gray-50">
                                <td class="px-6 py-4 font-medium">{{ $zone->name }}</td>
                                <td class="px-6 py-4 text-center">{{ $zone->min_distance_km }} - {{ $zone->max_distance_km }} km</td>
                                <td class="px-6 py-4 text-right">R {{ number_format($zone->base_rate, 2) }}</td>
                                <td class="px-6 py-4 text-right">R {{ number_format($zone->rate_per_km, 2) }}</td>
                                <td class="px-6 py-4 text-right">R {{ number_format($zone->rate_per_kg, 2) }}</td>
                                <td class="px-6 py-4 text-center">{{ $zone->estimated_days_min }}-{{ $zone->estimated_days_max }} days</td>
                                <td class="px-6 py-4 text-center">
                                    <span class="inline-flex px-2 py-1 rounded-full text-xs font-medium {{ $zone->is_active ? 'bg-green-100 text-green-800' : 'bg-gray-100 text-gray-800' }}">
                                        {{ $zone->is_active ? 'Active' : 'Inactive' }}
                                    </span>
                                </td>
                                <td class="px-6 py-4 text-right">
                                    <div class="flex justify-end gap-2">
                                        <button onclick="editZone({{ json_encode($zone) }})" class="text-blue-600 hover:text-blue-800">Edit</button>
                                        <form action="{{ route('admin.delivery-zones.delete', $zone->id) }}" method="POST" class="inline" onsubmit="return confirm('Delete this zone?')">
                                            @csrf
                                            @method('DELETE')
                                            <button type="submit" class="text-red-600 hover:text-red-800">Delete</button>
                                        </form>
                                    </div>
                                </td>
                            </tr>
                        @empty
                            <tr>
                                <td colspan="8" class="px-6 py-12 text-center text-gray-500">No delivery zones configured</td>
                            </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </div>

        <!-- Info Box -->
        <div class="mt-8 bg-blue-50 rounded-xl p-6">
            <h3 class="font-semibold text-blue-900 mb-2">Delivery Cost Calculation</h3>
            <p class="text-blue-800 text-sm">
                Delivery cost = Base Rate + (Distance x Rate per km) + (Weight x Rate per kg)
            </p>
            <p class="text-blue-700 text-sm mt-2">
                Distance is calculated using the Haversine formula based on the supplier's location and the customer's delivery address.
            </p>
        </div>
    </div>
</div>

<!-- Add Zone Modal -->
<div id="addZoneModal" class="hidden fixed inset-0 bg-black bg-opacity-50 flex items-center justify-center z-50">
    <div class="bg-white rounded-xl shadow-xl max-w-lg w-full mx-4 max-h-screen overflow-y-auto">
        <div class="p-6 border-b flex justify-between items-center">
            <h2 class="text-xl font-bold">Add Delivery Zone</h2>
            <button onclick="document.getElementById('addZoneModal').classList.add('hidden')" class="text-gray-400 hover:text-gray-600">
                <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12"></path>
                </svg>
            </button>
        </div>
        <form action="{{ route('admin.delivery-zones.store') }}" method="POST" class="p-6">
            @csrf
            <div class="space-y-4">
                <div>
                    <label class="block text-sm font-medium text-gray-700 mb-1">Zone Name</label>
                    <input type="text" name="name" required class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500" placeholder="e.g., Local, Regional">
                </div>
                <div class="grid grid-cols-2 gap-4">
                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Min Distance (km)</label>
                        <input type="number" name="min_distance_km" required min="0" class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500">
                    </div>
                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Max Distance (km)</label>
                        <input type="number" name="max_distance_km" required min="1" class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500">
                    </div>
                </div>
                <div class="grid grid-cols-3 gap-4">
                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Base Rate (R)</label>
                        <input type="number" name="base_rate" required min="0" step="0.01" class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500">
                    </div>
                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Rate/km (R)</label>
                        <input type="number" name="rate_per_km" required min="0" step="0.01" class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500">
                    </div>
                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Rate/kg (R)</label>
                        <input type="number" name="rate_per_kg" required min="0" step="0.01" class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500">
                    </div>
                </div>
                <div class="grid grid-cols-2 gap-4">
                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Est. Days Min</label>
                        <input type="number" name="estimated_days_min" required min="1" value="1" class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500">
                    </div>
                    <div>
                        <label class="block text-sm font-medium text-gray-700 mb-1">Est. Days Max</label>
                        <input type="number" name="estimated_days_max" required min="1" value="3" class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500">
                    </div>
                </div>
                <div>
                    <label class="flex items-center">
                        <input type="checkbox" name="is_active" value="1" checked class="w-4 h-4 text-blue-600 border-gray-300 rounded">
                        <span class="ml-2 text-sm text-gray-700">Active</span>
                    </label>
                </div>
            </div>
            <div class="mt-6 flex justify-end gap-3">
                <button type="button" onclick="document.getElementById('addZoneModal').classList.add('hidden')" class="px-4 py-2 border border-gray-300 rounded-lg hover:bg-gray-50">Cancel</button>
                <button type="submit" class="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700">Create Zone</button>
            </div>
        </form>
    </div>
</div>

<script>
function editZone(zone) {
    // For simplicity, we'll use a prompt-based edit. In production, use a proper modal.
    const newName = prompt('Zone Name:', zone.name);
    if (newName === null) return;
    
    const form = document.createElement('form');
    form.method = 'POST';
    form.action = `/admin/delivery-zones/${zone.id}`;
    form.innerHTML = `
        @csrf
        @method('PUT')
        <input type="hidden" name="name" value="${newName}">
        <input type="hidden" name="min_distance_km" value="${zone.min_distance_km}">
        <input type="hidden" name="max_distance_km" value="${zone.max_distance_km}">
        <input type="hidden" name="base_rate" value="${zone.base_rate}">
        <input type="hidden" name="rate_per_km" value="${zone.rate_per_km}">
        <input type="hidden" name="rate_per_kg" value="${zone.rate_per_kg}">
        <input type="hidden" name="estimated_days_min" value="${zone.estimated_days_min}">
        <input type="hidden" name="estimated_days_max" value="${zone.estimated_days_max}">
        <input type="hidden" name="is_active" value="${zone.is_active ? 1 : 0}">
    `;
    document.body.appendChild(form);
    form.submit();
}
</script>
@endsection