@extends('layouts.admin')

@section('content')
<div class="">
    <div class="max-w-7xl mx-auto sm:px-6 lg:px-8">
        <div class="bg-white overflow-hidden shadow-sm sm:rounded-lg">
            <div class="p-6 bg-white border-b border-gray-200">
                <div class="flex justify-between items-center mb-6">
                    <h1 class="text-2xl font-semibold text-gray-900">Create New Seva</h1>
                    <a href="{{ route('admin.sevas.index') }}" class="inline-flex items-center px-4 py-2 bg-gray-800 border border-transparent rounded-md font-semibold text-xs text-white uppercase tracking-widest hover:bg-gray-700">
                        Back to List
                    </a>
                </div>

                @if ($errors->any())
                    <div class="mb-4 p-4 bg-red-100 border border-red-400 text-red-700 rounded">
                        <ul class="list-disc pl-5">
                            @foreach ($errors->all() as $error)
                                <li>{{ $error }}</li>
                            @endforeach
                        </ul>
                    </div>
                @endif

                @if(session('error'))
                    <div class="mb-4 p-4 bg-red-100 border border-red-400 text-red-700 rounded">
                        {{ session('error') }}
                    </div>
                @endif

                <form action="{{ route('admin.sevas.store') }}" method="POST" enctype="multipart/form-data" class="space-y-6">
                    @csrf

                    <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
                        <div>
                            <label for="name" class="block text-sm font-medium text-gray-700">Seva Name</label>
                            <input type="text" name="name" id="name" value="{{ old('name') }}" required class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500">
                            @error('name')
                                <p class="mt-1 text-sm text-red-600">{{ $message }}</p>
                            @enderror
                        </div>

                        <div>
                            <label for="code" class="block text-sm font-medium text-gray-700">Seva Code</label>
                            <input type="text" name="code" id="code" value="{{ old('code') }}" required class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500">
                            @error('code')
                                <p class="mt-1 text-sm text-red-600">{{ $message }}</p>
                            @enderror
                        </div>

                        <div>
                            <label for="category_id" class="block text-sm font-medium text-gray-700">Category</label>
                            <select name="category_id" id="category_id" required class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500">
                                <option value="">Select Category</option>
                                @foreach($categories as $templeName => $templeCategories)
                                    <optgroup label="{{ $templeName }}">
                                        @foreach($templeCategories as $category)
                                            <option value="{{ $category->id }}" {{ old('category_id') == $category->id ? 'selected' : '' }}>
                                                {{ $category->name }}
                                            </option>
                                        @endforeach
                                    </optgroup>
                                @endforeach
                            </select>
                            @error('category_id')
                                <p class="mt-1 text-sm text-red-600">{{ $message }}</p>
                            @enderror
                        </div>

                        <div>
                            <div class="grid grid-cols-2 gap-4">
                                <div>
                                    <label for="price" class="block text-sm font-medium text-gray-700">Price</label>
                                    <input type="number" name="price" id="price" value="{{ old('price') }}" step="0.01" min="0" required class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500">
                                    @error('price')
                                        <p class="mt-1 text-sm text-red-600">{{ $message }}</p>
                                    @enderror
                                </div>

                                <div>
                                    <label for="status" class="block text-sm font-medium text-gray-700">Status</label>
                                    <select name="status" id="status" required class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500">
                                        <option value="1" {{ old('status') == '1' ? 'selected' : '' }}>Active</option>
                                        <option value="0" {{ old('status') == '0' ? 'selected' : '' }}>Inactive</option>
                                    </select>
                                    @error('status')
                                        <p class="mt-1 text-sm text-red-600">{{ $message }}</p>
                                    @enderror
                                </div>
                            </div>
                        </div>

                        <div class="md:col-span-2">
                            <label for="description" class="block text-sm font-medium text-gray-700">Description</label>
                            <textarea name="description" id="description" rows="3" class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500">{{ old('description') }}</textarea>
                            @error('description')
                                <p class="mt-1 text-sm text-red-600">{{ $message }}</p>
                            @enderror
                        </div>

                        <div>
                            <label for="image" class="block text-sm font-medium text-gray-700">Seva Image</label>
                            <div class="mt-1 flex items-center gap-4">
                                <input type="file" name="image" id="image" accept="image/*" class="hidden" onchange="previewImage(this)">
                                <button type="button" onclick="document.getElementById('image').click()" class="inline-flex items-center px-4 py-2 border border-gray-300 rounded-md shadow-sm text-sm font-medium text-gray-700 bg-white hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500">
                                    <svg class="-ml-1 mr-2 h-5 w-5 text-gray-400" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16l4.586-4.586a2 2 0 012.828 0L16 16m-2-2l1.586-1.586a2 2 0 012.828 0L20 14m-6-6h.01M6 20h12a2 2 0 002-2V6a2 2 0 00-2-2H6a2 2 0 00-2 2v12a2 2 0 002 2z" />
                                    </svg>
                                    Choose Image
                                </button>
                                <div id="imagePreview" class="flex items-center gap-2 ml-4 hidden">
                                    <img src="" alt="Preview" class="h-16 w-16 object-cover rounded-lg border">
                                    <button type="button" onclick="removeImage()" class="text-red-600 hover:text-red-800 font-semibold text-sm">Remove</button>
                                </div>
                            </div>
                            <p class="mt-1 text-xs text-gray-400">PNG, JPG, GIF up to 2MB</p>
                            @error('image')
                                <p class="mt-1 text-sm text-red-600">{{ $message }}</p>
                            @enderror
                        </div>

                        <div class="">
                            <label for="is_featured" class="block font-medium text-gray-700">Is Featured</label>
                            <input type="checkbox" name="is_featured" id="is_featured" value="1" {{ old('is_featured') ? 'checked' : '' }}>
                            <span class="text-sm text-gray-500">Mark this seva as featured</span>
                        </div>
                    </div>

                    <!-- Booking Configuration -->
                    <div class="border-t border-gray-200 pt-6">
                        <h2 class="text-lg font-medium text-gray-900 mb-4">Booking Configuration</h2>
                        <div class="space-y-6">
                            <div class="flex flex-col md:flex-row gap-4">
                                <div class="flex-1">
                                    <label for="availability_type" class="block text-sm font-medium text-gray-700">Availability Type</label>
                                    <select name="availability_type" id="availability_type" required class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500">
                                        @foreach($availabilityTypes as $type)
                                            <option value="{{ $type->value }}" {{ old('availability_type') == $type->value ? 'selected' : '' }}>{{ $type->label() }}</option>
                                        @endforeach
                                    </select>
                                    @error('availability_type')
                                        <p class="mt-1 text-sm text-red-600">{{ $message }}</p>
                                    @enderror
                                </div>
                                <div class="flex-1" id="time-slot-config-section" class="{{ old('availability_type') === 'donation' ? 'hidden' : '' }}">
                                    <label for="time_slot_type" class="block text-sm font-medium text-gray-700">Time Slot Configuration</label>
                                    <select name="time_slot_type" id="time_slot_type" required class="mt-1 block w-full px-3 py-2 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500">
                                        @foreach($timeSlotTypes as $type)
                                            <option value="{{ $type->value }}" {{ old('time_slot_type') == $type->value ? 'selected' : '' }}>{{ $type->label() }}</option>
                                        @endforeach
                                    </select>
                                    @error('time_slot_type')
                                        <p class="mt-1 text-sm text-red-600">{{ $message }}</p>
                                    @enderror
                                </div>
                            </div>

                            <!-- Disabled Dates Section (for daily availability) -->
                            <div id="disabled-dates-section" class="{{ old('availability_type') === 'daily' ? '' : 'hidden' }}">
                                <div class="flex justify-between items-center mb-4">
                                    <h3 class="text-md font-medium text-gray-900">Disabled Dates</h3>
                                    <button type="button" onclick="addDisabledDate()" class="inline-flex items-center px-3 py-1 border border-transparent text-sm font-medium rounded-md text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500">
                                        Add Disabled Date
                                    </button>
                                </div>

                                <div id="disabled-dates-container" class="space-y-4">
                                    <!-- Disabled dates will be added here dynamically -->
                                </div>
                            </div>

                            <!-- Specific Dates Section (for specific_dates availability) -->
                            <div id="specific-dates-section" class="{{ old('availability_type') === 'specific_dates' ? '' : 'hidden' }}">
                                <div class="flex justify-between items-center mb-4">
                                    <h3 class="text-md font-medium text-gray-900">Available Dates</h3>
                                    <button type="button" onclick="addSpecificDate()" class="inline-flex items-center px-3 py-1 border border-transparent text-sm font-medium rounded-md text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500">
                                        Add Date
                                    </button>
                                </div>

                                <div id="specific-dates-container" class="space-y-4">
                                    <!-- Specific dates will be added here dynamically -->
                                </div>
                            </div>

                             <!-- Time Slots Section -->
                             <div id="time-slots-section" class="{{ old('time_slot_type') == 'time_slots' ? '' : 'hidden' }}">
                                <div class="flex justify-between items-center mb-4">
                                    <h3 class="text-md font-medium text-gray-900">Time Slots</h3>
                                    <button type="button" onclick="addTimeSlot()" class="inline-flex items-center px-3 py-1 border border-transparent text-sm font-medium rounded-md text-white bg-indigo-600 hover:bg-indigo-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-indigo-500">
                                        Add Time Slot
                                    </button>
                                </div>

                                <div id="time-slots-container" class="space-y-4">
                                    <!-- Time slots will be added here dynamically -->
                                </div>
                            </div>
                        </div>
                    </div>

                    <!-- Separated Create Button -->
                    <div class="border-t border-gray-200 pt-6 flex justify-end mt-10">
                        <button type="submit" class="inline-flex items-center px-4 py-2 bg-indigo-600 border border-transparent rounded-md font-semibold text-xs text-white uppercase tracking-widest hover:bg-indigo-700 active:bg-indigo-900 focus:outline-none focus:border-indigo-900 focus:ring ring-indigo-300 disabled:opacity-25 transition">
                            Create Seva
                        </button>
                    </div>
                </form>
            </div>
        </div>
    </div>
</div>
@endsection

@push('scripts')
<script>
let timeSlotCount = 0;
let disabledDateCount = 0;
let specificDateCount = 0;

function addTimeSlot() {
    const container = document.getElementById('time-slots-container');
    const index = timeSlotCount++;

    const timeSlotHtml = `
        <div class="time-slot-item flex flex-col md:flex-row md:items-end gap-4 p-4 bg-gray-50 rounded-lg">
            <div class="flex-1">
                <label class="block text-sm font-medium text-gray-700">Start Time</label>
                <select name="time_slots[${index}][start_time]" class="time-slot-select mt-1 block w-full px-3 py-1 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500" required onchange="updateTimeSlotOptions(this)">
                    @for($hour = 4; $hour <= 20; $hour++)
                        <option value="{{ sprintf('%02d:00', $hour) }}">
                            {{ date('g:i A', strtotime(sprintf('%02d:00', $hour))) }}
                        </option>
                    @endfor
                </select>
            </div>
            <div class="flex-1">
                <label class="block text-sm font-medium text-gray-700">Daily Capacity</label>
                <input type="number" name="time_slots[${index}][daily_capacity]" min="1" value="1" class="mt-1 block w-full px-3 py-1 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500" required>
            </div>
            <div class="flex-shrink-0 mb-2 md:mb-0">
                <button type="button" onclick="removeTimeSlot(this)" class="inline-flex items-center px-3 py-1 border border-transparent text-sm font-medium rounded-md text-white bg-red-600 hover:bg-red-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-red-500">
                    Remove
                </button>
            </div>
        </div>
    `;

    container.insertAdjacentHTML('beforeend', timeSlotHtml);
    updateAllTimeSlotOptions();
}

function updateTimeSlotOptions(changedSelect) {
    const allSelects = document.querySelectorAll('.time-slot-select');
    const selectedValues = Array.from(allSelects).map(select => select.value);

    allSelects.forEach(select => {
        Array.from(select.options).forEach(option => {
            if (option.value === select.value) {
                option.disabled = false;
            } else {
                option.disabled = selectedValues.includes(option.value);
            }
        });
    });
}

function updateAllTimeSlotOptions() {
    const allSelects = document.querySelectorAll('.time-slot-select');
    if (allSelects.length > 0) {
        updateTimeSlotOptions(allSelects[0]);
    }
}

function removeTimeSlot(button) {
    button.closest('.time-slot-item').remove();
    updateAllTimeSlotOptions();
}

// Initialize date options when page loads
document.addEventListener('DOMContentLoaded', function() {
    // Initialize time slot options
    updateAllTimeSlotOptions();

    // Initialize date validations
    updateAllDisabledDateOptions();
    updateAllSpecificDateOptions();

    // Add event listeners for date inputs
    document.querySelectorAll('.disabled-date-input').forEach(input => {
        input.addEventListener('input', function() {
            updateDisabledDateOptions(this);
        });
        input.addEventListener('change', function() {
            updateDisabledDateOptions(this);
        });
    });

    document.querySelectorAll('.specific-date-input').forEach(input => {
        input.addEventListener('input', function() {
            updateSpecificDateOptions(this);
        });
        input.addEventListener('change', function() {
            updateSpecificDateOptions(this);
        });
    });
});

function addDisabledDate() {
    const container = document.getElementById('disabled-dates-container');
    const index = disabledDateCount++;

    const disabledDateHtml = `
        <div class="disabled-date-item flex flex-col md:flex-row md:items-end gap-4 p-4 bg-gray-50 rounded-lg">
            <div class="flex-1">
                <label class="block text-sm font-medium text-gray-700">Date</label>
                <input type="date" name="disabled_dates[${index}][date]" class="disabled-date-input mt-1 block w-full px-3 py-1 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500" required onchange="updateDisabledDateOptions(this)">
            </div>
            <div class="flex-1">
                <label class="block text-sm font-medium text-gray-700">Reason (Optional)</label>
                <input type="text" name="disabled_dates[${index}][reason]" class="mt-1 block w-full px-3 py-1 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500">
            </div>
            <div class="flex-shrink-0 mb-2 md:mb-0">
                <button type="button" onclick="removeDisabledDate(this)" class="inline-flex items-center px-3 py-1 border border-transparent text-sm font-medium rounded-md text-white bg-red-600 hover:bg-red-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-red-500">
                    Remove
                </button>
            </div>
        </div>
    `;

    container.insertAdjacentHTML('beforeend', disabledDateHtml);
    updateAllDisabledDateOptions();
}

function addSpecificDate() {
    const container = document.getElementById('specific-dates-container');
    const index = specificDateCount++;

    const specificDateHtml = `
        <div class="specific-date-item flex flex-col md:flex-row md:items-end gap-4 p-4 bg-gray-50 rounded-lg">
            <div class="flex-1">
                <label class="block text-sm font-medium text-gray-700">Date</label>
                <input type="date" name="specific_dates[${index}][date]" class="specific-date-input mt-1 block w-full px-3 py-1 border border-gray-300 rounded-md shadow-sm focus:border-indigo-500 focus:ring-indigo-500" required onchange="updateSpecificDateOptions(this)">
            </div>
            <div class="flex-shrink-0 mb-2 md:mb-0">
                <button type="button" onclick="removeSpecificDate(this)" class="inline-flex items-center px-3 py-1 border border-transparent text-sm font-medium rounded-md text-white bg-red-600 hover:bg-red-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-red-500">
                    Remove
                </button>
            </div>
        </div>
    `;

    container.insertAdjacentHTML('beforeend', specificDateHtml);
    updateAllSpecificDateOptions();
}

function updateDisabledDateOptions(changedInput) {
    const allInputs = document.querySelectorAll('.disabled-date-input');
    const selectedValues = Array.from(allInputs).map(input => input.value);

    // Check for duplicates
    const duplicates = selectedValues.filter((value, index) => selectedValues.indexOf(value) !== index);

    allInputs.forEach(input => {
        if (duplicates.includes(input.value)) {
            input.setCustomValidity('This date is already selected');
            // Add visual feedback
            input.classList.add('border-red-500');
        } else {
            input.setCustomValidity('');
            input.classList.remove('border-red-500');
        }
    });
}

function updateSpecificDateOptions(changedInput) {
    const allInputs = document.querySelectorAll('.specific-date-input');
    const selectedValues = Array.from(allInputs).map(input => input.value);

    // Check for duplicates
    const duplicates = selectedValues.filter((value, index) => selectedValues.indexOf(value) !== index);

    allInputs.forEach(input => {
        if (duplicates.includes(input.value)) {
            input.setCustomValidity('This date is already selected');
            // Add visual feedback
            input.classList.add('border-red-500');
        } else {
            input.setCustomValidity('');
            input.classList.remove('border-red-500');
        }
    });
}

function updateAllDisabledDateOptions() {
    const allInputs = document.querySelectorAll('.disabled-date-input');
    if (allInputs.length > 0) {
        updateDisabledDateOptions(allInputs[0]);
    }
}

function updateAllSpecificDateOptions() {
    const allInputs = document.querySelectorAll('.specific-date-input');
    if (allInputs.length > 0) {
        updateSpecificDateOptions(allInputs[0]);
    }
}

function removeDisabledDate(button) {
    button.closest('.disabled-date-item').remove();
    updateAllDisabledDateOptions();
}

function removeSpecificDate(button) {
    button.closest('.specific-date-item').remove();
    updateAllSpecificDateOptions();
}

// Toggle sections based on availability type
document.getElementById('availability_type').addEventListener('change', function() {
    const timeSlotConfigSection = document.getElementById('time-slot-config-section');
    const timeSlotsSection = document.getElementById('time-slots-section');
    const disabledDatesSection = document.getElementById('disabled-dates-section');
    const specificDatesSection = document.getElementById('specific-dates-section');

    if (this.value === 'donation') {
        timeSlotConfigSection.classList.add('hidden');
        timeSlotsSection.classList.add('hidden');
        disabledDatesSection.classList.add('hidden');
        specificDatesSection.classList.add('hidden');
    } else {
        timeSlotConfigSection.classList.remove('hidden');
        if (document.getElementById('time_slot_type').value === 'time_slots') {
            timeSlotsSection.classList.remove('hidden');
        }
        if (this.value === 'daily') {
            disabledDatesSection.classList.remove('hidden');
            specificDatesSection.classList.add('hidden');
        } else if (this.value === 'specific_dates') {
            disabledDatesSection.classList.add('hidden');
            specificDatesSection.classList.remove('hidden');
        }
    }
});

// Toggle time slots section based on time slot type
document.getElementById('time_slot_type').addEventListener('change', function() {
    const timeSlotsSection = document.getElementById('time-slots-section');
    if (this.value === 'time_slots') {
        timeSlotsSection.classList.remove('hidden');
    } else {
        timeSlotsSection.classList.add('hidden');
    }
});

function previewImage(input) {
    const preview = document.getElementById('imagePreview');
    const previewImg = preview.querySelector('img');

    if (input.files && input.files[0]) {
        const reader = new FileReader();

        reader.onload = function(e) {
            previewImg.src = e.target.result;
            preview.classList.remove('hidden');
        }

        reader.readAsDataURL(input.files[0]);
    }
}

function removeImage() {
    const input = document.getElementById('image');
    const preview = document.getElementById('imagePreview');

    input.value = '';
    preview.classList.add('hidden');
    preview.querySelector('img').src = '';
}
</script>
@endpush