{% extends "layout.html" %}

{% block content %}
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">
            <div class="card shadow">
                <div class="card-header bg-dark text-white d-flex justify-content-between align-items-center">
                    <h5 class="mb-0">Application Settings</h5>
                    <span class="badge bg-primary">LLM Configuration</span>
                </div>
                <div class="card-body">
                    <form method="post">
                        <div class="mb-4">
                            <label for="llm_provider" class="form-label fw-bold">LLM Provider</label>
                            <select class="form-select form-select-lg" id="llm_provider" name="llm_provider">
                                <option value="openrouter" {% if settings.llm_provider == 'openrouter' %}selected{% endif %}>OpenRouter (Cloud)</option>
                                <option value="ollama" {% if settings.llm_provider == 'ollama' %}selected{% endif %}>Ollama (Local)</option>
                                <option value="lmstudio" {% if settings.llm_provider == 'lmstudio' %}selected{% endif %}>LMStudio (Local)</option>
                            </select>
                            <div class="form-text">Choose where your AI text generation requests are processed.</div>
                        </div>

                        <hr>

                        <!-- OpenRouter Settings -->
                        <div id="openrouter-settings" class="provider-settings" {% if settings.llm_provider != 'openrouter' %}style="display:none;"{% endif %}>
                            <h5 class="mb-3 text-primary">OpenRouter Configuration</h5>
                            <div class="mb-3">
                                <label for="api_key" class="form-label">API Key</label>
                                <div class="input-group">
                                    <input type="password" class="form-control" id="api_key" name="api_key" value="{{ settings.openrouter_api_key or '' }}">
                                    <button class="btn btn-outline-primary" type="button" id="connect-openrouter-btn">Load Models</button>
                                </div>
                                <div class="form-text">Get your key at <a href="https://openrouter.ai/" target="_blank">openrouter.ai</a></div>
                            </div>

                            <div class="mb-3">
                                <label for="model" class="form-label">Model Selection</label>
                                <select class="form-select" id="model" name="model">
                                    <option value="{{ settings.openrouter_model }}" selected>{{ settings.openrouter_model }}</option>
                                </select>
                            </div>
                        </div>

                        <!-- Local LLM Settings (Ollama/LMStudio) -->
                        <div id="local-settings" class="provider-settings" {% if settings.llm_provider == 'openrouter' %}style="display:none;"{% endif %}>
                            <h5 class="mb-3 text-primary">Local LLM Configuration</h5>
                            <div class="mb-3">
                                <label for="local_base_url" class="form-label">Base URL</label>
                                <div class="input-group">
                                    <input type="text" class="form-control" id="local_base_url" name="local_base_url" 
                                           placeholder="e.g. http://localhost:11434/v1"
                                           value="{{ settings.local_base_url or '' }}">
                                    <button class="btn btn-outline-primary" type="button" id="connect-local-btn">Load Models</button>
                                </div>
                                <div id="url-help" class="form-text">
                                    Ollama default: <code>http://localhost:11434/v1</code><br>
                                    LMStudio default: <code>http://localhost:1234/v1</code>
                                </div>
                            </div>

                            <div class="mb-3">
                                <label for="local_model" class="form-label">Model Selection</label>
                                <select class="form-select" id="local_model" name="local_model">
                                    {% if settings.local_model %}
                                    <option value="{{ settings.local_model }}" selected>{{ settings.local_model }}</option>
                                    {% else %}
                                    <option value="" selected disabled>Select a model...</option>
                                    {% endif %}
                                </select>
                                <div class="form-text">Ensure your local LLM server is running and API is enabled.</div>
                            </div>
                        </div>

                        <hr>

                        <!-- Directory Settings -->
                        <h5 class="mb-3 text-primary">LoRA Directories</h5>
                        <p class="text-muted small">Absolute paths on disk where LoRA files are scanned for each category.</p>

                        <div class="mb-3">
                            <label for="lora_dir_characters" class="form-label">Characters / Looks</label>
                            <input type="text" class="form-control" id="lora_dir_characters" name="lora_dir_characters"
                                   value="{{ settings.lora_dir_characters or '/ImageModels/lora/Illustrious/Looks' }}">
                        </div>
                        <div class="mb-3">
                            <label for="lora_dir_outfits" class="form-label">Outfits</label>
                            <input type="text" class="form-control" id="lora_dir_outfits" name="lora_dir_outfits"
                                   value="{{ settings.lora_dir_outfits or '/ImageModels/lora/Illustrious/Clothing' }}">
                        </div>
                        <div class="mb-3">
                            <label for="lora_dir_actions" class="form-label">Actions</label>
                            <input type="text" class="form-control" id="lora_dir_actions" name="lora_dir_actions"
                                   value="{{ settings.lora_dir_actions or '/ImageModels/lora/Illustrious/Poses' }}">
                        </div>
                        <div class="mb-3">
                            <label for="lora_dir_styles" class="form-label">Styles</label>
                            <input type="text" class="form-control" id="lora_dir_styles" name="lora_dir_styles"
                                   value="{{ settings.lora_dir_styles or '/ImageModels/lora/Illustrious/Styles' }}">
                        </div>
                        <div class="mb-3">
                            <label for="lora_dir_scenes" class="form-label">Scenes</label>
                            <input type="text" class="form-control" id="lora_dir_scenes" name="lora_dir_scenes"
                                   value="{{ settings.lora_dir_scenes or '/ImageModels/lora/Illustrious/Backgrounds' }}">
                        </div>
                        <div class="mb-3">
                            <label for="lora_dir_detailers" class="form-label">Detailers</label>
                            <input type="text" class="form-control" id="lora_dir_detailers" name="lora_dir_detailers"
                                   value="{{ settings.lora_dir_detailers or '/ImageModels/lora/Illustrious/Detailers' }}">
                        </div>

                        <hr>

                        <h5 class="mb-3 text-primary">Checkpoint Directories</h5>
                        <div class="mb-3">
                            <label for="checkpoint_dirs" class="form-label">Checkpoint Scan Paths</label>
                            <input type="text" class="form-control" id="checkpoint_dirs" name="checkpoint_dirs"
                                   value="{{ settings.checkpoint_dirs or '/ImageModels/Stable-diffusion/Illustrious,/ImageModels/Stable-diffusion/Noob' }}">
                            <div class="form-text">Comma-separated list of directories to scan for checkpoint files.</div>
                        </div>

                        <hr>

                        <h5 class="mb-3 text-primary">Default Checkpoint</h5>
                        <div class="mb-3">
                            <label for="default_checkpoint" class="form-label">Active Checkpoint</label>
                            <div class="input-group">
                                <select class="form-select" id="default_checkpoint">
                                    <option value="">— workflow default —</option>
                                    {% for ckpt in all_checkpoints %}
                                    <option value="{{ ckpt.checkpoint_path }}"{% if ckpt.checkpoint_path == default_checkpoint_path %} selected{% endif %}>{{ ckpt.name }}</option>
                                    {% endfor %}
                                </select>
                                <span id="ckpt-save-status" class="input-group-text text-success" style="opacity:0;transition:opacity 0.5s">Saved</span>
                            </div>
                            <div class="form-text">Sets the checkpoint used for all generation requests. Saved immediately on change.</div>
                        </div>

                        <div class="d-grid mt-4">
                            <button type="submit" class="btn btn-primary btn-lg">Save All Settings</button>
                        </div>
                    </form>

                    <hr>

                    <h5 class="mb-3 text-primary">REST API Key</h5>
                    <p class="text-muted small">Generate an API key to use the <code>/api/v1/</code> endpoints for programmatic image generation.</p>
                    <div class="mb-3">
                        <div class="input-group">
                            <input type="password" class="form-control font-monospace" id="api-key-display"
                                   value="{{ settings.api_key or '' }}" readonly
                                   placeholder="No API key generated yet">
                            <button class="btn btn-outline-secondary" type="button" id="api-key-toggle" title="Show/hide key">
                                <i class="bi bi-eye"></i> Show
                            </button>
                            <button class="btn btn-outline-secondary" type="button" id="api-key-copy" title="Copy to clipboard">
                                <i class="bi bi-clipboard"></i> Copy
                            </button>
                            <button class="btn btn-outline-primary" type="button" id="api-key-regen">Regenerate</button>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block scripts %}
<script>
    document.addEventListener('DOMContentLoaded', () => {
        const providerSelect = document.getElementById('llm_provider');
        const openrouterSettings = document.getElementById('openrouter-settings');
        const localSettings = document.getElementById('local-settings');
        const localBaseUrlInput = document.getElementById('local_base_url');

        // Toggle visibility based on provider
        providerSelect.addEventListener('change', () => {
            if (providerSelect.value === 'openrouter') {
                openrouterSettings.style.display = 'block';
                localSettings.style.display = 'none';
            } else {
                openrouterSettings.style.display = 'none';
                localSettings.style.display = 'block';
                
                // Auto-fill default URLs if empty
                if (!localBaseUrlInput.value) {
                    if (providerSelect.value === 'ollama') {
                        localBaseUrlInput.value = 'http://localhost:11434/v1';
                    } else if (providerSelect.value === 'lmstudio') {
                        localBaseUrlInput.value = 'http://localhost:1234/v1';
                    }
                }
            }
        });

        // OpenRouter Model Loading
        const connectOpenRouterBtn = document.getElementById('connect-openrouter-btn');
        const apiKeyInput = document.getElementById('api_key');
        const modelSelect = document.getElementById('model');
        const currentModel = "{{ settings.openrouter_model }}";

        connectOpenRouterBtn.addEventListener('click', async () => {
            const apiKey = apiKeyInput.value;
            if (!apiKey) { alert('Please enter an API Key first.'); return; }

            connectOpenRouterBtn.disabled = true;
            connectOpenRouterBtn.textContent = 'Loading...';

            try {
                const formData = new FormData();
                formData.append('api_key', apiKey);
                const response = await fetch('/get_openrouter_models', { method: 'POST', body: formData });
                const data = await response.json();

                if (data.error) {
                    alert('Error: ' + data.error);
                } else {
                    modelSelect.innerHTML = '';
                    data.models.sort((a, b) => a.name.localeCompare(b.name)).forEach(model => {
                        const option = document.createElement('option');
                        option.value = model.id;
                        option.textContent = model.name;
                        if (model.id === currentModel) option.selected = true;
                        modelSelect.appendChild(option);
                    });
                    alert('OpenRouter models loaded successfully!');
                }
            } catch (err) {
                alert('Failed to connect to OpenRouter.');
            } finally {
                connectOpenRouterBtn.disabled = false;
                connectOpenRouterBtn.textContent = 'Load Models';
            }
        });

        // Default Checkpoint
        const defaultCkptSelect = document.getElementById('default_checkpoint');
        const ckptSaveStatus = document.getElementById('ckpt-save-status');
        if (defaultCkptSelect) {
            defaultCkptSelect.addEventListener('change', () => {
                fetch('/set_default_checkpoint', {
                    method: 'POST',
                    headers: {'Content-Type': 'application/x-www-form-urlencoded'},
                    body: 'checkpoint_path=' + encodeURIComponent(defaultCkptSelect.value)
                }).then(() => {
                    ckptSaveStatus.style.opacity = '1';
                    setTimeout(() => { ckptSaveStatus.style.opacity = '0'; }, 1500);
                });
            });
        }

        // API Key Management
        const apiKeyDisplay = document.getElementById('api-key-display');
        const apiKeyToggle = document.getElementById('api-key-toggle');
        const apiKeyCopy = document.getElementById('api-key-copy');
        const apiKeyRegen = document.getElementById('api-key-regen');

        if (apiKeyToggle) {
            apiKeyToggle.addEventListener('click', () => {
                if (apiKeyDisplay.type === 'password') {
                    apiKeyDisplay.type = 'text';
                    apiKeyToggle.innerHTML = '<i class="bi bi-eye-slash"></i> Hide';
                } else {
                    apiKeyDisplay.type = 'password';
                    apiKeyToggle.innerHTML = '<i class="bi bi-eye"></i> Show';
                }
            });
        }

        if (apiKeyCopy) {
            apiKeyCopy.addEventListener('click', () => {
                if (apiKeyDisplay.value) {
                    navigator.clipboard.writeText(apiKeyDisplay.value);
                    apiKeyCopy.innerHTML = '<i class="bi bi-check"></i> Copied';
                    setTimeout(() => { apiKeyCopy.innerHTML = '<i class="bi bi-clipboard"></i> Copy'; }, 1500);
                }
            });
        }

        if (apiKeyRegen) {
            apiKeyRegen.addEventListener('click', async () => {
                if (!confirm('Generate a new API key? Any existing key will stop working.')) return;
                apiKeyRegen.disabled = true;
                try {
                    const resp = await fetch('/api/key/regenerate', { method: 'POST' });
                    const data = await resp.json();
                    if (data.api_key) {
                        apiKeyDisplay.value = data.api_key;
                        apiKeyDisplay.type = 'text';
                        apiKeyToggle.innerHTML = '<i class="bi bi-eye-slash"></i> Hide';
                    }
                } catch (err) {
                    alert('Failed to regenerate API key.');
                } finally {
                    apiKeyRegen.disabled = false;
                }
            });
        }

        // Local Model Loading
        const connectLocalBtn = document.getElementById('connect-local-btn');
        const localModelSelect = document.getElementById('local_model');
        const currentLocalModel = "{{ settings.local_model }}";

        connectLocalBtn.addEventListener('click', async () => {
            const baseUrl = localBaseUrlInput.value;
            if (!baseUrl) { alert('Please enter a Base URL first.'); return; }

            connectLocalBtn.disabled = true;
            connectLocalBtn.textContent = 'Loading...';

            try {
                const formData = new FormData();
                formData.append('base_url', baseUrl);
                const response = await fetch('/get_local_models', { method: 'POST', body: formData });
                const data = await response.json();

                if (data.error) {
                    alert('Error: ' + data.error);
                } else {
                    localModelSelect.innerHTML = '';
                    data.models.forEach(model => {
                        const option = document.createElement('option');
                        option.value = model.id;
                        option.textContent = model.name;
                        if (model.id === currentLocalModel) option.selected = true;
                        localModelSelect.appendChild(option);
                    });
                    if (data.models.length === 0) alert('No models found at this URL.');
                    else alert('Local models loaded successfully!');
                }
            } catch (err) {
                alert('Failed to connect to local LLM server. Make sure it is running and CORS is enabled if needed.');
            } finally {
                connectLocalBtn.disabled = false;
                connectLocalBtn.textContent = 'Load Models';
            }
        });
    });
</script>
{% endblock %}