// search.js - Complete MiniSearch implementation with resources and scores
import { sampleResources } from '../data/resources.js';
import { areasData } from '../data/areas.js';

let miniSearch, miniSearchResources;
let allArtifacts; // no longer needs to be explicitly defined

// Helper to create and populate a MiniSearch instance
function createMiniSearchIndex(data, storeFields) {
    const search = new MiniSearch({
        fields: ['title', 'description', 'areas', 'topics'],
        storeFields: storeFields
    });
    search.addAll(data);
    return search;
}

// Initialize search
export async function initializeSearch(artifactsData) {
    // Assign the passed artifactsData to allArtifacts
    allArtifacts = artifactsData;

    // The fetch for artifacts.json is removed from here since it's now loaded in main.js
    
    // Prepare data for MiniSearch
    const searchData = allArtifacts.map((artifact, index) => ({
        id: index,
        title: artifact.title,
        description: artifact.description,
        type: artifact.type,
        areas: (artifact.areas || []).join(' '),
        topics: (artifact.topics || []).join(' '),
        url: artifact.url,
        date: artifact.date
    }));
    
    // Prepare resources data
    const resourcesData = sampleResources.map((resource, index) => ({
        id: index,
        title: resource.title,
        description: resource.description,
        type: resource.type,
        areas: (resource.areaTags || []).join(' '),
        topics: (resource.subAreaTags || []).join(' '),
        url: resource.url,
        date: resource.date
    }));
    
    // Initialize MiniSearch for artifacts
    miniSearch = createMiniSearchIndex(searchData, ['title', 'description', 'type', 'areas', 'topics', 'url', 'date']);
    
    // Initialize MiniSearch for resources
    miniSearchResources = createMiniSearchIndex(resourcesData, ['title', 'description', 'type', 'areas', 'topics', 'url', 'date']);
}

export function searchContent(query) {
    if (!query || query.trim().length < 2) {
        return { artifacts: [], resources: [] };
    }
    
    const artifactResults = miniSearch.search(query, {
        prefix: true,
        fuzzy: 0.2,
        boost: { title: 2, description: 1 }
    });
    
    const resourceResults = miniSearchResources.search(query, {
        prefix: true,
        fuzzy: 0.2,
        boost: { title: 2, description: 1 }
    });
    
    return {
        artifacts: artifactResults, // Show all results, not limited to 5
        resources: resourceResults
    };
}

// Helper functions
function getAreaDisplayName(area) {
    return areasData[area]?.title || area;
}

function getSubAreaDisplayName(areaId, subArea) {
    const area = areasData[areaId];
    if (!area || !area.subAreas) return subArea;
    const subAreaData = area.subAreas[subArea];
    return typeof subAreaData === 'string' ? subAreaData : subAreaData?.name || subArea;
}

// Search UI
export function initializeSearchUI(artifactsData) {
    initializeSearch(artifactsData).then(() => {
        console.log('Search initialized');
    });
    
    const searchInput = document.getElementById('search-input');
    const searchResults = document.getElementById('search-results');
    
    if (!searchInput || !searchResults) return;
    
    let searchTimeout;
    
    // Function to perform search
    function performSearch() {
        const query = searchInput.value.trim();
        
        if (query.length < 2) {
            searchResults.innerHTML = `<div class="text-gray-500 text-center py-8"><p>Enter a search term...</p></div>`;
            return;
        }
        
        const results = searchContent(query);
        displaySearchResults(results, query);
    }
    
    // Handle input events (typing)
    searchInput.addEventListener('input', (e) => {
        clearTimeout(searchTimeout);
        const query = e.target.value.trim();
        
        if (query.length < 2) {
            searchResults.innerHTML = `<div class="text-gray-500 text-center py-8"><p>Enter a search term...</p></div>`;
            return;
        }
        
        // Debounce search
        searchTimeout = setTimeout(() => {
            performSearch();
        }, 300);
    });
    
    // Handle Enter key (immediate search)
    searchInput.addEventListener('keydown', (e) => {
        if (e.key === 'Enter') {
            e.preventDefault();
            clearTimeout(searchTimeout);
            performSearch();
        }
    });
}

// Update the displaySearchResults function in search.js
export function displaySearchResults(results, query) {
    const { artifacts, resources } = results;
    const totalResults = artifacts.length + resources.length;
    
    if (totalResults === 0) {
        document.getElementById('search-results').innerHTML = `
            <div class="text-gray-500 text-center py-8"><p>No results found for "${query}"</p></div>
        `;
        return;
    }
    
    let html = `<div class="text-sm text-gray-600 mb-4">
        Found ${totalResults} results (${artifacts.length} writings, ${resources.length} resources)
    </div>`;
    
    // Display artifacts with collapsible header
    if (artifacts.length > 0) {
        html += `
            <div class="mb-4">
                <button onclick="toggleCategory('artifacts')" class="flex items-center justify-between w-full p-2 bg-blue-50 hover:bg-blue-100 rounded-lg transition-colors">
                    <h4 class="font-semibold text-gray-900">Writings (${artifacts.length})</h4>
                    <svg id="artifacts-arrow" class="w-4 h-4 text-gray-600 transform transition-transform" style="transform: rotate(0deg);">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path>
                    </svg>
                </button>
                <div id="artifacts-content" class="space-y-2 mt-2">
        `;
        
        artifacts.forEach(result => {
            const score = Math.round(result.score * 100);
            
            // Create area links
            const areaLinks = result.areas ? result.areas.split(' ').map(area => {
                const areaData = areasData[area];
                if (!areaData) return '';
                const colorClass = areaData?.colors?.bg || 'bg-blue-100';
                const textColorClass = areaData?.colors?.text || 'text-blue-800';
                return `<a href="/${area}#overview" class="text-xs px-2 py-1 ${colorClass} ${textColorClass} rounded hover:opacity-80 transition-opacity">${areaData?.title || area}</a>`;
            }).filter(link => link).join('') : '';
            
            // Create sub-area links
            const subAreaLinks = result.topics ? result.topics.split(' ').map(topic => {
                const primaryArea = result.areas?.split(' ')[0] || 'efficiency';
                const areaData = areasData[primaryArea];
                if (!areaData || !areaData.subAreas) return '';
                
                const subAreaData = areaData.subAreas[topic];
                if (!subAreaData) return '';
                
                const subAreaName = typeof subAreaData === 'string' ? subAreaData : subAreaData?.name || topic;
                const colorClass = subAreaData?.color || 'bg-gray-100 text-gray-800';
                
                return `<a href="/${primaryArea}#${topic}" class="text-xs px-2 py-1 ${colorClass} rounded hover:opacity-80 transition-opacity">${subAreaName}</a>`;
            }).filter(link => link).join('') : '';
            
            html += `
                <div class="p-3 bg-gray-50 rounded-lg border">
                    <div class="flex items-center justify-between mb-2">
                        <h5 class="font-medium text-sm text-gray-900">${result.title}</h5>
                        <div class="flex items-center gap-2">
                            <span class="text-xs text-gray-500">${score}%</span>
                            <a href="${result.url}" target="_blank" class="text-gray-400 hover:text-gray-600 transition-colors">
                                <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14"></path>
                                </svg>
                            </a>
                        </div>
                    </div>
                    <div class="flex items-center gap-2 mb-2 text-xs text-gray-600">
                        <span class="px-2 py-1 bg-gray-200 text-gray-700 rounded">${result.type}</span>
                        <span>${result.date}</span>
                    </div>
                    <div class="flex flex-wrap gap-1">
                        ${areaLinks}
                        ${subAreaLinks}
                    </div>
                </div>
            `;
        });
        
        html += `</div></div>`;
    }
    
    // Display resources with collapsible header
    if (resources.length > 0) {
        html += `
            <div class="mb-4">
                <button onclick="toggleCategory('resources')" class="flex items-center justify-between w-full p-2 bg-green-50 hover:bg-green-100 rounded-lg transition-colors">
                    <h4 class="font-semibold text-gray-900">Resources (${resources.length})</h4>
                    <svg id="resources-arrow" class="w-4 h-4 text-gray-600 transform transition-transform" style="transform: rotate(0deg);">
                        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path>
                    </svg>
                </button>
                <div id="resources-content" class="space-y-2 mt-2">
        `;
        
        resources.forEach(result => {
            const score = Math.round(result.score * 100);
            
            // Create area links for resources
            const areaLinks = result.areas ? result.areas.split(' ').map(area => {
                const areaData = areasData[area];
                if (!areaData) return '';
                const colorClass = areaData?.colors?.bg || 'bg-green-100';
                const textColorClass = areaData?.colors?.text || 'text-green-800';
                return `<a href="/${area}#overview" class="text-xs px-2 py-1 ${colorClass} ${textColorClass} rounded hover:opacity-80 transition-opacity">${areaData?.title || area}</a>`;
            }).filter(link => link).join('') : '';
            
            // Create sub-area links for resources
            const subAreaLinks = result.topics ? result.topics.split(' ').map(topic => {
                const primaryArea = result.areas?.split(' ')[0] || 'efficiency';
                const areaData = areasData[primaryArea];
                if (!areaData || !areaData.subAreas) return '';
                
                const subAreaData = areaData.subAreas[topic];
                if (!subAreaData) return '';
                
                const subAreaName = typeof subAreaData === 'string' ? subAreaData : subAreaData?.name || topic;
                const colorClass = subAreaData?.color || 'bg-gray-100 text-gray-800';
                
                return `<a href="/${primaryArea}#${topic}" class="text-xs px-2 py-1 ${colorClass} rounded hover:opacity-80 transition-opacity">${subAreaName}</a>`;
            }).filter(link => link).join('') : '';
            
            html += `
                <div class="p-3 bg-gray-50 rounded-lg border">
                    <div class="flex items-center justify-between mb-2">
                        <h5 class="font-medium text-sm text-gray-900">${result.title}</h5>
                        <div class="flex items-center gap-2">
                            <span class="text-xs text-gray-500">${score}%</span>
                            <a href="${result.url}" target="_blank" class="text-gray-400 hover:text-gray-600 transition-colors">
                                <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M10 6H6a2 2 0 00-2 2v10a2 2 0 002 2h10a2 2 0 002-2v-4M14 4h6m0 0v6m0-6L10 14"></path>
                                </svg>
                            </a>
                        </div>
                    </div>
                    <div class="flex items-center gap-2 mb-2 text-xs text-gray-600">
                        <span class="px-2 py-1 bg-gray-200 text-gray-700 rounded">${result.type}</span>
                        <span>${result.date}</span>
                    </div>
                    <div class="flex flex-wrap gap-1">
                        ${areaLinks}
                        ${subAreaLinks}
                    </div>
                </div>
            `;
        });
        
        html += `</div></div>`;
    }
    
    document.getElementById('search-results').innerHTML = html;
}

// Add this function to handle category toggling
window.toggleCategory = function(category) {
    const content = document.getElementById(`${category}-content`);
    const arrow = document.getElementById(`${category}-arrow`);
    
    if (content.style.display === 'none') {
        content.style.display = 'block';
        arrow.style.transform = 'rotate(0deg)';
    } else {
        content.style.display = 'none';
        arrow.style.transform = 'rotate(-90deg)';
    }
};