{% comment %}
Enhanced Search Component - Django Cotton Version

Advanced search input with autocomplete suggestions, debouncing, and loading states.
Provides real-time search with suggestions and filtering integration.

Usage Examples:

<c-enhanced_search 
    placeholder="Search parks by name, location, or features..."
    current_value=""
/>

<c-enhanced_search 
    placeholder="Find your perfect park..."
    current_value="disney"
    autocomplete_url="/parks/suggest/"
    class="custom-class"
/>

Parameters:
- placeholder: Search input placeholder text (default: "Search parks...")
- current_value: Current search value (optional)
- autocomplete_url: URL for autocomplete suggestions (optional)
- debounce_delay: Debounce delay in milliseconds (default: 300)
- class: Additional CSS classes (optional)

Features:
- Real-time search with debouncing
- Autocomplete dropdown with suggestions
- Loading states and indicators
- HTMX integration for seamless search
- Keyboard navigation support
- Clear button functionality
{% endcomment %}

<c-vars 
    placeholder="Search parks..."
    current_value=""
    autocomplete_url=""
    debounce_delay="300"
    class=""
/>

<div class="relative w-full {{ class }}" 
     x-data="{ 
        open: false, 
        search: '{{ current_value }}',
        suggestions: [],
        loading: false,
        selectedIndex: -1,
        clearSearch() {
            this.search = '';
            this.open = false;
            this.suggestions = [];
            this.selectedIndex = -1;
            // Trigger search update if HTMX is available
            if (typeof htmx !== 'undefined' && this.$refs.searchInput) {
                htmx.trigger(this.$refs.searchInput, 'keyup');
            }
        },
        selectSuggestion(suggestion) {
            this.search = suggestion.name || suggestion;
            this.open = false;
            this.selectedIndex = -1;
            // Trigger search update if HTMX is available
            if (typeof htmx !== 'undefined' && this.$refs.searchInput) {
                htmx.trigger(this.$refs.searchInput, 'keyup');
            }
        },
        handleKeydown(event) {
            if (!this.open) return;
            
            switch(event.key) {
                case 'ArrowDown':
                    event.preventDefault();
                    this.selectedIndex = Math.min(this.selectedIndex + 1, this.suggestions.length - 1);
                    break;
                case 'ArrowUp':
                    event.preventDefault();
                    this.selectedIndex = Math.max(this.selectedIndex - 1, -1);
                    break;
                case 'Enter':
                    event.preventDefault();
                    if (this.selectedIndex >= 0 && this.suggestions[this.selectedIndex]) {
                        this.selectSuggestion(this.suggestions[this.selectedIndex]);
                    }
                    break;
                case 'Escape':
                    this.open = false;
                    this.selectedIndex = -1;
                    break;
            }
        }
     }"
     @click.away="open = false">
    
    <div class="relative">
        <!-- Search Icon with ARIA -->
        <div class="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none" aria-hidden="true">
            <svg class="h-5 w-5 text-gray-400 dark:text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"></path>
            </svg>
        </div>

        <!-- Search Input with Enhanced Accessibility -->
        <input 
            x-ref="searchInput"
            id="park-search"
            type="text" 
            name="search"
            x-model="search"
            placeholder="{{ placeholder }}"
            class="block w-full pl-10 pr-12 py-3 border border-gray-300 dark:border-gray-600 rounded-lg leading-5 bg-white dark:bg-gray-800 text-gray-900 dark:text-white placeholder-gray-500 dark:placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-blue-500 transition-all duration-200 text-base sm:text-sm min-h-[44px] sm:min-h-0"
            hx-get="{% url 'parks:park_list' %}"
            hx-trigger="keyup changed delay:{{ debounce_delay }}ms"
            hx-target="#park-results"
            hx-include="[name='view_mode'], [name='status'], [name='operator'], [name='ordering']"
            hx-indicator="#search-spinner"
            hx-push-url="true"
            @keydown="handleKeydown"
            @input="
                if (search.length >= 2) {
                    {% if autocomplete_url %}
                        loading = true;
                        fetch('{{ autocomplete_url }}?q=' + encodeURIComponent(search))
                            .then(response => response.json())
                            .then(data => {
                                suggestions = data.suggestions || [];
                                open = suggestions.length > 0;
                                loading = false;
                                selectedIndex = -1;
                            })
                            .catch(() => {
                                loading = false;
                                open = false;
                            });
                    {% endif %}
                } else {
                    open = false;
                    suggestions = [];
                    selectedIndex = -1;
                }
            "
            autocomplete="off"
            role="combobox"
            aria-expanded="false"
            :aria-expanded="open"
            aria-autocomplete="list"
            aria-controls="search-suggestions"
            aria-describedby="search-help-text search-live-region"
            :aria-activedescendant="selectedIndex >= 0 ? `suggestion-${selectedIndex}` : null"
        />

        <!-- Loading Spinner with ARIA -->
        <div id="search-spinner" class="absolute inset-y-0 right-0 pr-3 flex items-center htmx-indicator" aria-hidden="true">
            <svg class="animate-spin h-5 w-5 text-gray-400" fill="none" viewBox="0 0 24 24" aria-hidden="true">
                <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
                <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
            </svg>
        </div>

        <!-- Clear Button with Enhanced Accessibility -->
        <button 
            x-show="search.length > 0"
            @click="clearSearch()"
            type="button"
            class="absolute inset-y-0 right-0 pr-3 flex items-center text-gray-400 hover:text-gray-600 dark:hover:text-gray-300 transition-colors htmx-indicator:hidden min-w-[44px] min-h-[44px] justify-center"
            aria-label="Clear search input"
            title="Clear search"
            tabindex="0"
        >
            <svg class="h-5 w-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true">
                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
            </svg>
        </button>
    </div>

    <!-- Autocomplete Dropdown with ARIA -->
    <div 
        x-show="open && suggestions.length > 0"
        x-transition:enter="transition ease-out duration-100"
        x-transition:enter-start="transform opacity-0 scale-95"
        x-transition:enter-end="transform opacity-100 scale-100"
        x-transition:leave="transition ease-in duration-75"
        x-transition:leave-start="transform opacity-100 scale-100"
        x-transition:leave-end="transform opacity-0 scale-95"
        class="absolute z-50 w-full mt-1 bg-white border border-gray-200 rounded-lg shadow-lg dark:bg-gray-800 dark:border-gray-700 max-h-60 overflow-y-auto"
        style="display: none;"
        role="listbox"
        aria-label="Search suggestions"
        id="search-suggestions"
    >
        <div class="py-1">
            <template x-for="(suggestion, index) in suggestions" :key="index">
                <button
                    type="button"
                    class="w-full px-4 py-2 text-left text-sm text-gray-700 hover:bg-gray-100 dark:text-gray-300 dark:hover:bg-gray-700 flex items-center justify-between min-h-[44px] focus:outline-none focus:ring-2 focus:ring-blue-500"
                    :class="{ 'bg-gray-100 dark:bg-gray-700': selectedIndex === index }"
                    @click="selectSuggestion(suggestion)"
                    @mouseenter="selectedIndex = index"
                    role="option"
                    :id="`suggestion-${index}`"
                    :aria-selected="selectedIndex === index"
                    :aria-label="`Select ${suggestion.name || suggestion}${suggestion.type ? ' - ' + suggestion.type : ''}`"
                >
                    <span x-text="suggestion.name || suggestion"></span>
                    <template x-if="suggestion.type">
                        <span class="text-xs text-gray-500 dark:text-gray-400 capitalize" x-text="suggestion.type"></span>
                    </template>
                </button>
            </template>
        </div>

        <!-- Quick Filters -->
        {% if autocomplete_url %}
            <div class="border-t border-gray-200 dark:border-gray-700 p-2">
                <div class="text-xs font-medium text-gray-500 dark:text-gray-400 mb-2">Quick Filters:</div>
                <div class="flex flex-wrap gap-1">
                    <button
                        type="button"
                        class="inline-flex items-center px-2 py-1 text-xs font-medium text-blue-700 bg-blue-50 rounded-md hover:bg-blue-100 dark:bg-blue-900/30 dark:text-blue-300 dark:hover:bg-blue-800/50"
                        hx-get="{% url 'parks:park_list' %}?has_coasters=True"
                        hx-target="#park-results"
                        hx-push-url="true"
                        @click="open = false"
                    >
                        Parks with Coasters
                    </button>
                    <button
                        type="button"
                        class="inline-flex items-center px-2 py-1 text-xs font-medium text-blue-700 bg-blue-50 rounded-md hover:bg-blue-100 dark:bg-blue-900/30 dark:text-blue-300 dark:hover:bg-blue-800/50"
                        hx-get="{% url 'parks:park_list' %}?min_rating=4"
                        hx-target="#park-results"
                        hx-push-url="true"
                        @click="open = false"
                    >
                        Highly Rated
                    </button>
                    <button
                        type="button"
                        class="inline-flex items-center px-2 py-1 text-xs font-medium text-blue-700 bg-blue-50 rounded-md hover:bg-blue-100 dark:bg-blue-900/30 dark:text-blue-300 dark:hover:bg-blue-800/50"
                        hx-get="{% url 'parks:park_list' %}?park_type=disney"
                        hx-target="#park-results"
                        hx-push-url="true"
                        @click="open = false"
                    >
                        Disney Parks
                    </button>
                </div>
            </div>
        {% endif %}
    </div>
    
    <!-- Screen Reader Support Elements -->
    <div id="search-help-text" class="sr-only">
        Type to search parks. Use arrow keys to navigate suggestions, Enter to select, or Escape to close.
    </div>
    
    <!-- Live Region for Screen Reader Announcements -->
    <div id="search-live-region" 
         aria-live="polite" 
         aria-atomic="true" 
         class="sr-only"
         x-text="open && suggestions.length > 0 ? 
             `${suggestions.length} suggestion${suggestions.length !== 1 ? 's' : ''} available. Use arrow keys to navigate.` : 
             (search.length >= 2 && !loading && suggestions.length === 0 ? 'No suggestions found.' : '')">
    </div>
</div>