{% extends "layout.html" %}

{% block content %}
<div class="d-flex justify-content-between align-items-center mb-4">
    <h2>Character Library</h2>
    <div class="d-flex gap-1 align-items-center">
        <button id="batch-generate-btn" class="btn btn-sm btn-outline-success btn-icon" data-bs-toggle="tooltip" data-bs-placement="bottom" title="Generate cover images for characters without one"><img src="{{ url_for('static', filename='icons/new-cover-batch.png') }}"></button>
        <button id="regenerate-all-btn" class="btn btn-sm btn-outline-danger btn-icon" data-bs-toggle="tooltip" data-bs-placement="bottom" title="Regenerate cover images for all characters"><img src="{{ url_for('static', filename='icons/new-cover-batch.png') }}"></button>
        <form action="{{ url_for('rescan') }}" method="post" class="d-contents">
            <button type="submit" class="btn btn-sm btn-outline-primary btn-icon" data-bs-toggle="tooltip" data-bs-placement="bottom" title="Rescan character files from disk"><img src="{{ url_for('static', filename='icons/refresh.png') }}"></button>
        </form>
    </div>
</div>

<!-- Batch Progress Bar -->
<div id="batch-progress-container" class="card mb-4 d-none">
    <div class="card-body">
        <div class="d-flex justify-content-between align-items-center mb-1">
            <h5 id="batch-status-text" class="mb-0">Batch Generating...</h5>
            <span id="batch-node-status" class="badge bg-info">Starting...</span>
        </div>
        
        <div class="mb-3">
            <small class="text-muted">Overall Batch Progress</small>
            <div class="progress" role="progressbar" aria-label="Batch Progress" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" style="height: 10px;">
                <div id="batch-progress-bar" class="progress-bar bg-success" style="width: 0%"></div>
            </div>
        </div>

        <div class="mb-2">
            <div class="d-flex justify-content-between">
                <small id="current-char-name" class="text-muted mb-1"></small>
                <small id="current-step-progress" class="text-muted mb-1"></small>
            </div>
            <div class="progress" role="progressbar" aria-label="Task Progress" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" style="height: 20px;">
                <div id="task-progress-bar" class="progress-bar progress-bar-striped progress-bar-animated bg-info" style="width: 0%"></div>
            </div>
        </div>
    </div>
</div>

<div class="row row-cols-2 row-cols-sm-3 row-cols-md-4 row-cols-lg-5 row-cols-xl-6 g-3">
    {% for char in characters %}
    <div class="col" id="card-{{ char.slug }}">
        <div class="card h-100 character-card" onclick="window.location.href='/character/{{ char.slug }}'">
            <div class="img-container">
                {% if char.image_path %}
                <img id="img-{{ char.slug }}" src="{{ url_for('static', filename='uploads/' + char.image_path) }}" alt="{{ char.name }}">
                <span id="no-img-{{ char.slug }}" class="text-muted d-none">No Image</span>
                {% else %}
                <img id="img-{{ char.slug }}" src="" alt="{{ char.name }}" class="d-none">
                <span id="no-img-{{ char.slug }}" class="text-muted">No Image</span>
                {% endif %}
            </div>
            <div class="card-body">
                <h5 class="card-title text-center">{{ char.name }}</h5>
                <p class="card-text small text-center text-muted">
                    {% set ns = namespace(parts=[]) %}
                    {% for section_key in ['identity', 'defaults'] %}
                        {% if char.data[section_key] is mapping %}
                            {% for v in char.data[section_key].values() %}
                                {% if v %}{% set ns.parts = ns.parts + [v] %}{% endif %}
                            {% endfor %}
                        {% endif %}
                    {% endfor %}
                    {% set wardrobe = char.data.get('wardrobe', {}) %}
                    {% if wardrobe %}
                        {% set outfit_data = wardrobe.get('default', wardrobe) %}
                        {% if outfit_data is mapping %}
                            {% for v in outfit_data.values() %}
                                {% if v and v is string %}{% set ns.parts = ns.parts + [v] %}{% endif %}
                            {% endfor %}
                        {% endif %}
                    {% endif %}
                    {% if char.data.lora and char.data.lora.lora_triggers %}
                        {% set ns.parts = ns.parts + [char.data.lora.lora_triggers] %}
                    {% endif %}
                    {{ ns.parts | join(', ') }}
                </p>
            </div>
            {% if char.data.lora.lora_name %}
            {% set lora_name = char.data.lora.lora_name.split('/')[-1].replace('.safetensors', '') %}
            <div class="card-footer text-center p-1">
                <small class="text-muted" title="{{ char.data.lora.lora_name }}">{{ lora_name }}</small>
            </div>
            {% endif %}
        </div>
    </div>
    {% endfor %}
</div>
{% endblock %}

{% block scripts %}
<script>
    document.addEventListener('DOMContentLoaded', () => {
        const batchBtn = document.getElementById('batch-generate-btn');
        const regenAllBtn = document.getElementById('regenerate-all-btn');
        const progressBar = document.getElementById('batch-progress-bar');
        const taskProgressBar = document.getElementById('task-progress-bar');
        const container = document.getElementById('batch-progress-container');
        const statusText = document.getElementById('batch-status-text');
        const nodeStatus = document.getElementById('batch-node-status');
        const charNameText = document.getElementById('current-char-name');
        const stepProgressText = document.getElementById('current-step-progress');
        
        async function waitForJob(jobId) {
            return new Promise((resolve, reject) => {
                const poll = setInterval(async () => {
                    try {
                        const resp = await fetch(`/api/queue/${jobId}/status`);
                        const data = await resp.json();
                        if (data.status === 'done') { clearInterval(poll); resolve(data); }
                        else if (data.status === 'failed' || data.status === 'removed') { clearInterval(poll); reject(new Error(data.error || 'Job failed')); }
                        else if (data.status === 'processing') nodeStatus.textContent = 'Generating…';
                        else nodeStatus.textContent = 'Queued…';
                    } catch (err) {}
                }, 1500);
            });
        }

        async function runBatch() {
            const response = await fetch('/get_missing_characters');
            const data = await response.json();
            const missing = data.missing;

            if (missing.length === 0) {
                alert("No characters missing cover images.");
                return;
            }

            batchBtn.disabled = true;
            regenAllBtn.disabled = true;
            container.classList.remove('d-none');

            // Phase 1: Queue all jobs upfront so the page can be navigated away from
            progressBar.style.width = '100%';
            progressBar.textContent = '';
            progressBar.classList.add('progress-bar-striped', 'progress-bar-animated');
            nodeStatus.textContent = 'Queuing…';

            const jobs = [];
            for (const char of missing) {
                statusText.textContent = `Queuing ${jobs.length + 1} / ${missing.length}…`;
                try {
                    const genResp = await fetch(`/character/${char.slug}/generate`, {
                        method: 'POST',
                        body: new URLSearchParams({ action: 'replace' }),
                        headers: { 'X-Requested-With': 'XMLHttpRequest' }
                    });
                    const genData = await genResp.json();
                    if (genData.job_id) jobs.push({ item: char, jobId: genData.job_id });
                } catch (err) {
                    console.error(`Failed to queue ${char.name}:`, err);
                }
            }

            // Phase 2: Poll all jobs concurrently; update UI as each finishes
            progressBar.classList.remove('progress-bar-striped', 'progress-bar-animated');
            progressBar.style.width = '0%';
            progressBar.textContent = '0%';
            statusText.textContent = `0 / ${jobs.length} done`;

            let completed = 0;
            let currentItem = '';
            await Promise.all(jobs.map(async ({ item, jobId }) => {
                currentItem = item.name;
                charNameText.textContent = `Processing: ${currentItem}`;
                try {
                    const jobResult = await waitForJob(jobId);
                    if (jobResult.result && jobResult.result.image_url) {
                        const img = document.getElementById(`img-${item.slug}`);
                        const noImgSpan = document.getElementById(`no-img-${item.slug}`);
                        if (img) { img.src = jobResult.result.image_url; img.classList.remove('d-none'); }
                        if (noImgSpan) noImgSpan.classList.add('d-none');
                    }
                } catch (err) {
                    console.error(`Failed for ${item.name}:`, err);
                }
                completed++;
                const pct = Math.round((completed / jobs.length) * 100);
                progressBar.style.width = `${pct}%`;
                progressBar.textContent = `${pct}%`;
                statusText.textContent = `${completed} / ${jobs.length} done`;
            }));

            progressBar.style.width = '100%';
            progressBar.textContent = '100%';
            statusText.textContent = 'Batch Complete!';
            charNameText.textContent = '';
            nodeStatus.textContent = 'Done';
            stepProgressText.textContent = '';
            taskProgressBar.style.width = '0%';
            taskProgressBar.textContent = '';
            batchBtn.disabled = false;
            regenAllBtn.disabled = false;
            setTimeout(() => container.classList.add('d-none'), 5000);
        }

        batchBtn.addEventListener('click', async () => {
            const response = await fetch('/get_missing_characters');
            const data = await response.json();
            if (data.missing.length === 0) {
                alert("No characters missing cover images.");
                return;
            }
            if (!confirm(`Generate cover images for ${data.missing.length} characters?`)) return;
            runBatch();
        });

        regenAllBtn.addEventListener('click', async () => {
            if (!confirm("This will unassign ALL current cover images and generate new ones for every character. Existing files will be kept on disk. Proceed?")) return;
            
            const clearResp = await fetch('/clear_all_covers', { method: 'POST' });
            if (clearResp.ok) {
                // Update UI to show "No Image" for all
                document.querySelectorAll('.img-container img').forEach(img => img.classList.add('d-none'));
                document.querySelectorAll('.img-container .text-muted').forEach(span => span.classList.remove('d-none'));
                runBatch();
            }
        });
    });
</script>
{% endblock %}
