{% extends "base.html" %}

{% block content %}
    <h1>{{ title }}</h1>
    
    <div id="error" class="error" style="display: none;"></div>

    <form id="generateForm" onsubmit="generateImage(event)">
        <div class="form-group" style="text-align: center;">
            {% if not fixed_workflow %}
            <select name="workflow" required>
                <option value="">Select a workflow...</option>
            </select>
            {% endif %}
            
            {% if not hide_seed %}
            <input type="number" name="seed" min="0" placeholder="Leave empty for random seed">
            {% endif %}
            
            <button type="submit">Generate Image</button>
        </div>
    </form>

    <div id="loading" style="display: none;"></div>
    <div id="result">
        <div class="image-container">
            <img id="generatedImage" style="max-width: 512px; max-height: 512px; display: none; cursor: pointer;">
            <div class="loading-overlay">
                <div class="spinner"></div>
            </div>
        </div>
    </div>

    <script>
        function submitGenerate() {
            const form = document.getElementById('generateForm');
            const event = new Event('submit', {
                bubbles: true,
                cancelable: true,
            });
            form.dispatchEvent(event);
        }
        const API_URL = '{{ api_url }}';
        {% if fixed_workflow %}const FIXED_WORKFLOW = '{{ fixed_workflow }}';{% endif %}

        function generateImage(event) {
            event.preventDefault();
            
            const form = event.target;
            const loading = document.getElementById('loading');
            const image = document.getElementById('generatedImage');
            const workflowId = {% if fixed_workflow %}FIXED_WORKFLOW{% else %}form.workflow.value{% endif %};
            const seedInput = form.querySelector('input[name="seed"]');
            const seed = seedInput ? seedInput.value : null;
            
            loading.style.display = 'block';
            const imageContainer = document.querySelector('.image-container');
            const loadingOverlay = document.querySelector('.loading-overlay');
            if (imageContainer) {
                imageContainer.classList.add('generating');
            }
            if (loadingOverlay) {
                loadingOverlay.style.display = 'flex';
            }

            // Construct the appropriate URL based on whether we have a seed
            // Ensure we're using the full URL
            const baseUrl = API_URL.replace(/\/$/, ''); // Remove trailing slash if present
            const url = seed 
                ? `${baseUrl}/workflows/${workflowId}/image/${seed}`
                : `${baseUrl}/workflows/${workflowId}/image`;
            
            fetch(url)
            .then(response => {
                if (!response.ok) throw new Error('Generation failed');
                return response.blob();
            })
            .then(blob => {
                const url = URL.createObjectURL(blob);
                image.src = url;
                image.style.display = 'block';
                image.onclick = submitGenerate;
                const imageContainer = document.querySelector('.image-container');
                const loadingOverlay = document.querySelector('.loading-overlay');
                if (imageContainer) {
                    imageContainer.classList.remove('generating');
                }
                if (loadingOverlay) {
                    loadingOverlay.style.display = 'none';
                }
            })
            .catch(error => {
                alert('Error: ' + error.message);
                const imageContainer = document.querySelector('.image-container');
                const loadingOverlay = document.querySelector('.loading-overlay');
                if (imageContainer) {
                    imageContainer.classList.remove('generating');
                }
                if (loadingOverlay) {
                    loadingOverlay.style.display = 'none';
                }
            });
        }
        // Load workflows when page loads
        window.addEventListener('load', async () => {
            {% if fixed_workflow %}
            // Skip workflow loading if we're using a fixed workflow
            return;
            {% else %}
            try {
                const baseUrl = API_URL.replace(/\/$/, ''); // Remove trailing slash if present
                const response = await fetch(`${baseUrl}/workflows`);
                if (!response.ok) throw new Error('Failed to fetch workflows');
                
                const workflows = await response.json();
                const select = document.querySelector('select[name="workflow"]');
                
                workflows.forEach(workflow => {
                    const option = document.createElement('option');
                    option.value = workflow.id;
                    option.textContent = `${workflow.id} - ${workflow.handle}`;
                    select.appendChild(option);
                });

                // If there's only one workflow, select it automatically
                if (workflows.length === 1) {
                    select.value = workflows[0].id;
                }
            } catch (error) {
                const errorDiv = document.getElementById('error');
                errorDiv.textContent = `Error: ${error.message}`;
                errorDiv.style.display = 'block';
            }
            {% endif %}
        });
    </script>
{% endblock %}