// pages/AreaPage.js - Single-topic view for area pages
import { areasData } from '../data/areas.js';
import { featuredArtifacts } from '../data/artifacts.js';
import { createArtifactCarousel } from '../cards/ArtifactSummaryCard.js';
import { sampleResources } from '../data/resources.js';
import { createResourceCard, initializeResourceCards } from '../cards/ResourceCard.js';

export function renderAreaPage(areaId, topicId = null) {
    const area = areasData[areaId];
    if (!area) {
        return {
            content: `<div class="bg-white/90 backdrop-blur-md rounded-lg shadow-sm p-8 mx-4"><h1 class="text-2xl font-bold text-red-600">Area not found</h1></div>`,
            init: () => {}
        };
    }

    // If no topic specified, show overview of the area
    if (!topicId) {
        return renderAreaOverview(area, areaId);
    }

    // Show specific topic
    const topic = area.subAreas[topicId];
    if (!topic) {
        return {
            content: `<div class="bg-white/90 backdrop-blur-md rounded-lg shadow-sm p-8 mx-4"><h1 class="text-2xl font-bold text-red-600">Topic not found</h1></div>`,
            init: () => {}
        };
    }

    return renderTopicView(area, areaId, topic, topicId);
}

function renderAreaOverview(area, areaId) {
    // Get sub-areas as array
    const topics = Object.entries(area.subAreas).map(([key, value]) => ({
        id: key,
        name: typeof value === 'string' ? value : value.name,
        navName: typeof value === 'string' ? value : (value.navName || value.name),
        description: typeof value === 'string' ? '' : (value.description || ''),
        color: typeof value === 'object' ? value.color : 'bg-gray-200 text-gray-700'
    }));

    const content = `
        <!-- Top spacing -->
        <div class="mb-8"></div>
        
        <!-- Page Navigation Card -->
        <section class="mb-8 relative z-20 px-4 sm:px-6 lg:px-8">
            <div class="bg-white/70 backdrop-blur-sm shadow-sm rounded-lg px-6 py-4 w-full" style="max-width: min(90%, 1400px); margin: 0 auto;">
                <div class="flex items-center gap-3 overflow-x-auto">
                    <span class="text-gray-600 font-semibold whitespace-nowrap">${area.navTitle}:</span>
                    <a href="/${areaId}" class="px-3 py-1.5 text-sm font-semibold text-blue-600 underline decoration-2 underline-offset-2 hover:bg-blue-50 rounded transition-colors whitespace-nowrap">Overview</a>
                    ${topics.map((topic, index) => `
                        ${index === 0 ? '<span class="text-gray-300">•</span>' : ''}
                        <a href="/${areaId}/${topic.id}" class="px-3 py-1.5 text-sm font-medium text-gray-700 hover:text-blue-600 hover:bg-blue-50 rounded transition-colors whitespace-nowrap">${topic.navName}</a>
                        ${index < topics.length - 1 ? '<span class="text-gray-300">•</span>' : ''}
                    `).join('')}
                </div>
            </div>
        </section>
        
        <!-- Area Overview Section -->
        <section id="overview" class="mb-16 relative z-20 px-4 sm:px-6 lg:px-8">
            <div class="bg-white/90 backdrop-blur-md shadow-sm rounded-lg p-6 md:p-10 w-full" style="max-width: min(90%, 1400px); margin: 0 auto;">
                <h1 class="text-3xl md:text-4xl font-bold text-gray-900 mb-6">${area.title}</h1>
                
                <!-- Area Description -->
                <div class="mb-8">
                    <p class="text-gray-700 leading-relaxed">${area.description}</p>
                </div>

                <!-- Role of Openness -->
                ${area.openness ? `
                <div class="px-4 sm:px-6 py-5 bg-gradient-to-r from-orange-50/95 to-yellow-50/95 backdrop-blur-sm border-l-4 border-orange-400 rounded-r-lg mb-8">
                    <p class="font-bold text-orange-900 mb-3 text-lg">🤗 The Role of Openness</p>
                    <p class="text-orange-800 italic leading-relaxed">${area.openness}</p>
                </div>
                ` : ''}

                <!-- Topics within this area -->
                <div>
                    <p class="text-xs font-semibold text-gray-600 uppercase tracking-wide mb-3">Topics in this area:</p>
                    <div class="flex flex-wrap gap-2">
                        ${topics.map(topic => {
                            // Extract colors from topic.color
                            let bgColor = 'bg-gray-200';
                            let textColor = 'text-gray-700';
                            if (topic.color) {
                                const bgMatch = topic.color.match(/bg-(\w+)-(\d+)/);
                                const textMatch = topic.color.match(/text-(\w+)-(\d+)/);
                                if (bgMatch) bgColor = `bg-${bgMatch[1]}-${bgMatch[2]}`;
                                if (textMatch) textColor = `text-${textMatch[1]}-700`;
                            }
                            return `
                                <a href="/${areaId}/${topic.id}" class="inline-block px-3 py-1.5 text-sm ${bgColor} ${textColor} rounded hover:opacity-80 transition-opacity">
                                    ${topic.navName}
                                </a>
                            `;
                        }).join('')}
                    </div>
                </div>
            </div>
        </section>
    `;

    return {
        content,
        init: () => {}
    };
}

function renderTopicView(area, areaId, topic, topicId) {
    const topicName = topic.navName || topic.name;
    const topicDescription = topic.description || '';
    const topicOpenness = topic.openness || '';
    
    // Get all topics for navigation
    const allTopics = Object.entries(area.subAreas).map(([key, value]) => ({
        id: key,
        navName: typeof value === 'string' ? value : (value.navName || value.name)
    }));

    const content = `
        <!-- Top spacing -->
        <div class="mb-8"></div>
        
        <!-- Page Navigation Card -->
        <section class="mb-8 relative z-20 px-4 sm:px-6 lg:px-8">
            <div class="bg-white/70 backdrop-blur-sm shadow-sm rounded-lg px-6 py-4 w-full" style="max-width: min(90%, 1400px); margin: 0 auto;">
                <div class="flex items-center gap-3 overflow-x-auto">
                    <span class="text-gray-600 font-semibold whitespace-nowrap">${area.navTitle}:</span>
                    <a href="/${areaId}" class="px-3 py-1.5 text-sm font-medium text-gray-700 hover:text-blue-600 hover:bg-blue-50 rounded transition-colors whitespace-nowrap">Overview</a>
                    ${allTopics.map((t, index) => `
                        ${index === 0 ? '<span class="text-gray-300">•</span>' : ''}
                        <a href="/${areaId}/${t.id}" class="px-3 py-1.5 text-sm font-medium transition-colors whitespace-nowrap rounded ${t.id === topicId ? 'text-blue-600 font-semibold underline decoration-2 underline-offset-2' : 'text-gray-700 hover:text-blue-600 hover:bg-blue-50'}">${t.navName}</a>
                        ${index < allTopics.length - 1 ? '<span class="text-gray-300">•</span>' : ''}
                    `).join('')}
                </div>
            </div>
        </section>
        
        <!-- Topic Content Section -->
        <section id="${topicId}" class="mb-16 relative z-20 px-4 sm:px-6 lg:px-8">
            <div class="bg-white/80 backdrop-blur-md shadow-sm rounded-lg p-6 md:p-10 w-full" style="max-width: min(90%, 1400px); margin: 0 auto;">
                <!-- Breadcrumb -->
                <div class="mb-4 text-sm text-gray-600">
                    <a href="/${areaId}" class="hover:text-blue-600 transition-colors">${area.navTitle}</a>
                    <span class="mx-2">›</span>
                    <span class="text-gray-900 font-medium">${topicName}</span>
                </div>

                <h1 class="text-3xl md:text-4xl font-bold text-gray-900 mb-6">${topic.name}</h1>
                
                <!-- Topic Description -->
                ${topicDescription ? `
                <div class="mb-8">
                    <p class="text-gray-700 leading-relaxed">${topicDescription}</p>
                </div>
                ` : ''}

                <!-- Role of Openness for this topic -->
                ${topicOpenness ? `
                <div class="px-4 sm:px-6 py-5 bg-gradient-to-r from-orange-50/95 to-yellow-50/95 backdrop-blur-sm border-l-4 border-orange-400 rounded-r-lg mb-8">
                    <p class="font-bold text-orange-900 mb-3 text-lg">🤗 The Role of Openness</p>
                    <p class="text-orange-800 italic leading-relaxed">${topicOpenness}</p>
                </div>
                ` : ''}

                <h3 class="text-xl md:text-2xl font-bold text-gray-900 mb-6">Related Research & Resources</h3>
                <div id="${topicId}-artifacts-carousel" class="overflow-x-auto -mx-2">
                    <!-- Carousel will be inserted here -->
                </div>
            </div>
        </section>
    `;

    return {
        content,
        init: () => {
            // Initialize artifact carousel for this topic
            setTimeout(async () => {
                try {
                    const allArtifacts = window.allArtifacts || [];
                    
                    // Filter artifacts by this specific topic
                    const filteredArtifacts = allArtifacts.filter(artifact => 
                        artifact.topics && artifact.topics.includes(topicId)
                    );
                    
                    // Transform field names to match expected format
                    const transformedArtifacts = filteredArtifacts.map(artifact => ({
                        ...artifact,
                        areaTags: artifact.areas,
                        subAreaTags: artifact.topics,
                        sourceUrl: artifact.url
                    }));
                    
                    const carouselId = `${topicId}-artifacts-carousel`;
                    createArtifactCarousel(transformedArtifacts.length > 0 ? transformedArtifacts : featuredArtifacts, carouselId);
                } catch (error) {
                    console.error(`Error creating carousel for ${topicId}:`, error);
                    const carouselId = `${topicId}-artifacts-carousel`;
                    createArtifactCarousel(featuredArtifacts, carouselId);
                }
            }, 50);
        }
    };
}