{% extends "base.html" %}

{% block title %}Settings - PrepMate{% endblock %}

{% block head %}
<style>
    .deprecated-warning {
        background-color: #fff3cd;
        border-left: 4px solid #ffc107;
        padding: 12px 16px;
        margin-bottom: 20px;
        border-radius: 4px;
    }
    .deprecated-warning .bi {
        font-size: 1.2em;
        margin-right: 8px;
    }
    .model-info {
        font-size: 0.875rem;
        color: #6c757d;
        margin-top: 4px;
    }
    .settings-card {
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
</style>
{% endblock %}

{% block content %}
<div class="container mt-4">
    <div class="row">
        <div class="col-lg-8 mx-auto">
            <h1 class="mb-4">
                <i class="bi bi-gear"></i> Settings
            </h1>

            {% if settings %}

                <div class="card settings-card">
                    <div class="card-header bg-primary text-white">
                        <h5 class="mb-0">
                            <i class="bi bi-cpu"></i> AI Model Selection
                        </h5>
                    </div>
                    <div class="card-body">
                        <p class="text-muted">
                            Configure which OpenAI models are used for different operations. 
                            Your selections will be used for all future AI interactions.
                        </p>

                        <form method="POST" action="{{ url_for('settings.update_settings') }}">
                            <!-- Reply Generation Model -->
                            <div class="mb-4">
                                <label for="reply_generation_model" class="form-label fw-bold">
                                    <i class="bi bi-chat-dots"></i> Reply Generation Model
                                </label>
                                <select 
                                    class="form-select" 
                                    id="reply_generation_model" 
                                    name="reply_generation_model" 
                                    required
                                >
                                    {% for model in settings.valid_models %}
                                    <option value="{{ model }}" 
                                            {% if model == settings.reply_generation_model %}selected{% endif %}>
                                        {{ model }}
                                    </option>
                                    {% endfor %}
                                </select>
                                <div class="model-info">
                                    Used when generating AI responses to your questions and messages.
                                </div>
                            </div>

                            <!-- Last Updated -->
                            <div class="mb-3">
                                <small class="text-muted">
                                    <i class="bi bi-clock"></i> Last updated: {{ settings.updated_at }}
                                </small>
                            </div>

                            <!-- Submit Button -->
                            <div class="d-grid gap-2">
                                <button type="submit" class="btn btn-primary">
                                    <i class="bi bi-check-circle"></i> Save Settings
                                </button>
                            </div>
                        </form>
                    </div>
                </div>

                <!-- Available Models Reference -->
                <div class="card mt-4">
                    <div class="card-header">
                        <h6 class="mb-0">
                            <i class="bi bi-info-circle"></i> Available Model
                        </h6>
                    </div>
                    <div class="card-body">
                        <p class="mb-0"><strong>gpt-4.1-mini:</strong> Cost-effective GPT-4 variant</p>
                    </div>
                </div>

                <!-- Response Template Editor (US2) -->
                <div class="card settings-card mt-4">
                    <div class="card-header bg-success text-white">
                        <h5 class="mb-0">
                            <i class="bi bi-file-text"></i> Response Template
                        </h5>
                    </div>
                    <div class="card-body">
                        <p class="text-muted">
                            Customize how AI responses are structured. Templates use Go template syntax with variables like {% raw %}{{.UserMessage}}{% endraw %}, {% raw %}{{.SessionProfile}}{% endraw %}, etc.
                        </p>

                        <form method="POST" action="{{ url_for('settings.create_template') }}" id="template-form">
                            <!-- Template Content Textarea -->
                            <div class="mb-3">
                                <label for="template_content" class="form-label fw-bold">
                                    <i class="bi bi-code-square"></i> Template Content
                                </label>
                                <textarea 
                                    class="form-control font-monospace" 
                                    id="template_content" 
                                    name="template_content" 
                                    rows="15" 
                                    maxlength="10000"
                                    required
                                    style="font-size: 0.875rem;"
                                >{% if active_template %}{{ active_template.template_content }}{% endif %}</textarea>
                                <div class="form-text">
                                    <span id="char-count">0</span> / 10000 characters
                                </div>
                            </div>

                            <!-- Version History Dropdown -->
                            {% if template_versions and template_versions|length > 0 %}
                            <div class="mb-3">
                                <label for="version_selector" class="form-label fw-bold">
                                    <i class="bi bi-clock-history"></i> Version History
                                </label>
                                <select class="form-select" id="version_selector">
                                    {% for version in template_versions %}
                                    <option 
                                        value="{{ version.version_id }}" 
                                        data-content="{{ version.template_content }}"
                                        {% if version.is_active %}selected{% endif %}
                                    >
                                        {{ version.created_at }} {% if version.is_active %}(Active){% endif %}
                                    </option>
                                    {% endfor %}
                                </select>
                                <div class="form-text">
                                    Select a previous version to view or activate it.
                                </div>
                            </div>

                            <div class="d-flex gap-2">
                                <button type="submit" class="btn btn-success">
                                    <i class="bi bi-save"></i> Save New Version
                                </button>
                                <button type="button" class="btn btn-outline-primary" id="activate-btn">
                                    <i class="bi bi-check-circle"></i> Activate Selected Version
                                </button>
                            </div>
                            {% else %}
                            <div class="mb-3">
                                <p class="text-muted">
                                    <i class="bi bi-info-circle"></i> No version history yet. Save your first template version above.
                                </p>
                            </div>

                            <button type="submit" class="btn btn-success">
                                <i class="bi bi-save"></i> Save New Version
                            </button>
                            {% endif %}
                        </form>
                    </div>
                </div>
            {% else %}
                <div class="alert alert-warning">
                    <i class="bi bi-exclamation-triangle"></i>
                    Unable to load settings. Please try again later.
                </div>
            {% endif %}
        </div>
    </div>
</div>

<script>
// Character counter
const templateTextarea = document.getElementById('template_content');
const charCount = document.getElementById('char-count');

function updateCharCount() {
    if (templateTextarea && charCount) {
        charCount.textContent = templateTextarea.value.length;
    }
}

if (templateTextarea) {
    templateTextarea.addEventListener('input', updateCharCount);
    updateCharCount(); // Initial count
}

// Version selector - load template content when selecting a version
const versionSelector = document.getElementById('version_selector');
if (versionSelector) {
    versionSelector.addEventListener('change', function() {
        const selectedOption = this.options[this.selectedIndex];
        const content = selectedOption.getAttribute('data-content');
        if (content && templateTextarea) {
            templateTextarea.value = content;
            updateCharCount();
        }
    });
}

// Activate selected version button
const activateBtn = document.getElementById('activate-btn');
if (activateBtn) {
    activateBtn.addEventListener('click', function() {
        if (!versionSelector) return;
        
        const versionId = versionSelector.value;
        if (!versionId) {
            alert('Please select a version to activate');
            return;
        }

        // Send POST request to activate endpoint
        fetch(`{{ url_for('settings.activate_template', version_id='__VERSION_ID__') }}`.replace('__VERSION_ID__', versionId), {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
                'X-Requested-With': 'XMLHttpRequest'
            }
        })
        .then(response => response.json())
        .then(data => {
            if (data.success) {
                window.location.reload();
            } else {
                alert('Error activating template: ' + (data.error || 'Unknown error'));
            }
        })
        .catch(error => {
            console.error('Error:', error);
            alert('Error activating template. Please try again.');
        });
    });
}
</script>

{% endblock %}