{% extends "base.html" %}

{% block title %}Scan Configurations - SneakyScanner{% endblock %}

{% block content %}
<div class="row mt-4">
    <div class="col-12">
        <div class="d-flex justify-content-between align-items-center mb-4">
            <h1>Scan Configurations</h1>
            <div>
                <button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#createConfigModal">
                    <i class="bi bi-plus-circle"></i> Create New Config
                </button>
            </div>
        </div>
    </div>
</div>

<!-- Summary Stats -->
<div class="row mb-4">
    <div class="col-md-4">
        <div class="stat-card">
            <div class="stat-value" id="total-configs">-</div>
            <div class="stat-label">Total Configs</div>
        </div>
    </div>
    <div class="col-md-4">
        <div class="stat-card">
            <div class="stat-value" id="total-sites-used">-</div>
            <div class="stat-label">Total Sites Referenced</div>
        </div>
    </div>
    <div class="col-md-4">
        <div class="stat-card">
            <div class="stat-value" id="recent-updates">-</div>
            <div class="stat-label">Updated This Week</div>
        </div>
    </div>
</div>

<!-- Configs Table -->
<div class="row">
    <div class="col-12">
        <div class="card">
            <div class="card-header">
                <div class="d-flex justify-content-between align-items-center">
                    <h5 class="mb-0">All Configurations</h5>
                    <input type="text" id="search-input" class="form-control" style="max-width: 300px;"
                           placeholder="Search configs...">
                </div>
            </div>
            <div class="card-body">
                <div id="configs-loading" class="text-center py-5">
                    <div class="spinner-border text-primary" role="status">
                        <span class="visually-hidden">Loading...</span>
                    </div>
                    <p class="mt-3 text-muted">Loading configurations...</p>
                </div>
                <div id="configs-error" style="display: none;" class="alert alert-danger">
                    <strong>Error:</strong> <span id="error-message"></span>
                </div>
                <div id="configs-content" style="display: none;">
                    <div class="table-responsive">
                        <table class="table table-hover">
                            <thead>
                                <tr>
                                    <th>Title</th>
                                    <th>Description</th>
                                    <th>Sites</th>
                                    <th>Updated</th>
                                    <th>Actions</th>
                                </tr>
                            </thead>
                            <tbody id="configs-tbody">
                                <!-- Populated by JavaScript -->
                            </tbody>
                        </table>
                    </div>
                    <div id="empty-state" style="display: none;" class="text-center py-5">
                        <i class="bi bi-gear" style="font-size: 3rem; color: #64748b;"></i>
                        <h5 class="mt-3 text-muted">No configurations defined</h5>
                        <p class="text-muted">Create your first scan configuration</p>
                        <button class="btn btn-primary mt-2" data-bs-toggle="modal" data-bs-target="#createConfigModal">
                            <i class="bi bi-plus-circle"></i> Create Config
                        </button>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Create Config Modal -->
<div class="modal fade" id="createConfigModal" tabindex="-1">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">
                    <i class="bi bi-plus-circle me-2"></i>Create New Configuration
                </h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <form id="create-config-form">
                    <div class="mb-3">
                        <label for="config-title" class="form-label">Title <span class="text-danger">*</span></label>
                        <input type="text" class="form-control" id="config-title" required
                               placeholder="e.g., Production Weekly Scan">
                    </div>

                    <div class="mb-3">
                        <label for="config-description" class="form-label">Description</label>
                        <textarea class="form-control" id="config-description" rows="3"
                                  placeholder="Optional description of this configuration"></textarea>
                    </div>

                    <div class="mb-3">
                        <label class="form-label">Sites <span class="text-danger">*</span></label>
                        <div id="sites-loading-modal" class="text-center py-3">
                            <div class="spinner-border spinner-border-sm text-primary" role="status">
                                <span class="visually-hidden">Loading...</span>
                            </div>
                            <span class="ms-2 text-muted">Loading available sites...</span>
                        </div>
                        <div id="sites-list" style="display: none;">
                            <!-- Populated by JavaScript -->
                        </div>
                        <small class="form-text text-muted">Select at least one site to include in this configuration</small>
                    </div>

                    <div class="alert alert-danger" id="create-config-error" style="display: none;">
                        <span id="create-config-error-message"></span>
                    </div>
                </form>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
                <button type="button" class="btn btn-primary" id="create-config-btn">
                    <i class="bi bi-check-circle me-1"></i>Create Configuration
                </button>
            </div>
        </div>
    </div>
</div>

<!-- Edit Config Modal -->
<div class="modal fade" id="editConfigModal" tabindex="-1">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">
                    <i class="bi bi-pencil me-2"></i>Edit Configuration
                </h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <form id="edit-config-form">
                    <input type="hidden" id="edit-config-id">

                    <div class="mb-3">
                        <label for="edit-config-title" class="form-label">Title <span class="text-danger">*</span></label>
                        <input type="text" class="form-control" id="edit-config-title" required>
                    </div>

                    <div class="mb-3">
                        <label for="edit-config-description" class="form-label">Description</label>
                        <textarea class="form-control" id="edit-config-description" rows="3"></textarea>
                    </div>

                    <div class="mb-3">
                        <label class="form-label">Sites <span class="text-danger">*</span></label>
                        <div id="edit-sites-list">
                            <!-- Populated by JavaScript -->
                        </div>
                    </div>

                    <div class="alert alert-danger" id="edit-config-error" style="display: none;">
                        <span id="edit-config-error-message"></span>
                    </div>
                </form>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
                <button type="button" class="btn btn-primary" id="edit-config-btn">
                    <i class="bi bi-check-circle me-1"></i>Save Changes
                </button>
            </div>
        </div>
    </div>
</div>

<!-- View Config Modal -->
<div class="modal fade" id="viewConfigModal" tabindex="-1">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title">
                    <i class="bi bi-eye me-2"></i>Configuration Details
                </h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <div id="view-config-content">
                    <!-- Populated by JavaScript -->
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
            </div>
        </div>
    </div>
</div>

<!-- Delete Confirmation Modal -->
<div class="modal fade" id="deleteConfigModal" tabindex="-1">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title text-danger">
                    <i class="bi bi-trash me-2"></i>Delete Configuration
                </h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <p>Are you sure you want to delete configuration <strong id="delete-config-name"></strong>?</p>
                <p class="text-warning"><i class="bi bi-exclamation-triangle"></i> This action cannot be undone.</p>
                <input type="hidden" id="delete-config-id">
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
                <button type="button" class="btn btn-danger" id="confirm-delete-btn">
                    <i class="bi bi-trash me-1"></i>Delete
                </button>
            </div>
        </div>
    </div>
</div>

{% endblock %}

{% block scripts %}
<script>
// Global state
let allConfigs = [];
let allSites = [];

// Load data on page load
document.addEventListener('DOMContentLoaded', function() {
    loadSites();
    loadConfigs();
});

// Load all sites
async function loadSites() {
    try {
        const response = await fetch('/api/sites?all=true');
        if (!response.ok) throw new Error('Failed to load sites');

        const data = await response.json();
        allSites = data.sites || [];

        renderSitesCheckboxes();
    } catch (error) {
        console.error('Error loading sites:', error);
        document.getElementById('sites-loading-modal').innerHTML =
            '<div class="alert alert-danger">Failed to load sites</div>';
    }
}

// Render sites checkboxes
function renderSitesCheckboxes(selectedIds = [], isEditMode = false) {
    const container = isEditMode ? document.getElementById('edit-sites-list') : document.getElementById('sites-list');

    if (!container) return;

    if (allSites.length === 0) {
        const message = '<div class="alert alert-info">No sites available. <a href="/sites">Create a site first</a>.</div>';
        container.innerHTML = message;
        if (!isEditMode) {
            document.getElementById('sites-loading-modal').style.display = 'none';
            container.style.display = 'block';
        }
        return;
    }

    const prefix = isEditMode ? 'edit-site' : 'site';
    const checkboxClass = isEditMode ? 'edit-site-checkbox' : 'site-checkbox';

    let html = '<div style="max-height: 300px; overflow-y: auto;">';
    allSites.forEach(site => {
        const isChecked = selectedIds.includes(site.id);
        html += `
            <div class="form-check">
                <input class="form-check-input ${checkboxClass}" type="checkbox" value="${site.id}"
                       id="${prefix}-${site.id}" ${isChecked ? 'checked' : ''}>
                <label class="form-check-label" for="${prefix}-${site.id}">
                    ${escapeHtml(site.name)}
                    <small class="text-muted">(${site.ip_count || 0} IP${site.ip_count !== 1 ? 's' : ''})</small>
                </label>
            </div>
        `;
    });
    html += '</div>';

    container.innerHTML = html;

    if (!isEditMode) {
        document.getElementById('sites-loading-modal').style.display = 'none';
        container.style.display = 'block';
    }
}

// Load all configs
async function loadConfigs() {
    try {
        const response = await fetch('/api/configs');
        if (!response.ok) throw new Error('Failed to load configs');

        const data = await response.json();
        allConfigs = data.configs || [];

        renderConfigs();
        updateStats();

        document.getElementById('configs-loading').style.display = 'none';
        document.getElementById('configs-content').style.display = 'block';
    } catch (error) {
        console.error('Error loading configs:', error);
        document.getElementById('configs-loading').style.display = 'none';
        document.getElementById('configs-error').style.display = 'block';
        document.getElementById('error-message').textContent = error.message;
    }
}

// Render configs table
function renderConfigs(filter = '') {
    const tbody = document.getElementById('configs-tbody');
    const emptyState = document.getElementById('empty-state');

    const filteredConfigs = filter
        ? allConfigs.filter(c =>
            c.title.toLowerCase().includes(filter.toLowerCase()) ||
            (c.description && c.description.toLowerCase().includes(filter.toLowerCase()))
          )
        : allConfigs;

    if (filteredConfigs.length === 0) {
        tbody.innerHTML = '';
        emptyState.style.display = 'block';
        return;
    }

    emptyState.style.display = 'none';
    tbody.innerHTML = filteredConfigs.map(config => `
        <tr>
            <td><strong>${escapeHtml(config.title)}</strong></td>
            <td>${config.description ? escapeHtml(config.description) : '<span class="text-muted">-</span>'}</td>
            <td>
                <span class="badge bg-primary">${config.site_count} site${config.site_count !== 1 ? 's' : ''}</span>
            </td>
            <td>${formatDate(config.updated_at)}</td>
            <td>
                <button class="btn btn-sm btn-info" onclick="viewConfig(${config.id})" title="View">
                    <i class="bi bi-eye"></i>
                </button>
                <button class="btn btn-sm btn-warning" onclick="editConfig(${config.id})" title="Edit">
                    <i class="bi bi-pencil"></i>
                </button>
                <button class="btn btn-sm btn-danger" onclick="deleteConfig(${config.id}, '${escapeHtml(config.title).replace(/'/g, "\\'")}');" title="Delete">
                    <i class="bi bi-trash"></i>
                </button>
            </td>
        </tr>
    `).join('');
}

// Update stats
function updateStats() {
    document.getElementById('total-configs').textContent = allConfigs.length;

    const uniqueSites = new Set();
    allConfigs.forEach(c => c.sites.forEach(s => uniqueSites.add(s.id)));
    document.getElementById('total-sites-used').textContent = uniqueSites.size;

    const oneWeekAgo = new Date();
    oneWeekAgo.setDate(oneWeekAgo.getDate() - 7);
    const recentUpdates = allConfigs.filter(c => new Date(c.updated_at) > oneWeekAgo).length;
    document.getElementById('recent-updates').textContent = recentUpdates;
}

// Search functionality
document.getElementById('search-input').addEventListener('input', function(e) {
    renderConfigs(e.target.value);
});

// Create config
document.getElementById('create-config-btn').addEventListener('click', async function() {
    const title = document.getElementById('config-title').value.trim();
    const description = document.getElementById('config-description').value.trim();
    const siteCheckboxes = document.querySelectorAll('.site-checkbox:checked');
    const siteIds = Array.from(siteCheckboxes).map(cb => parseInt(cb.value));

    if (!title) {
        showError('create-config-error', 'Title is required');
        return;
    }

    if (siteIds.length === 0) {
        showError('create-config-error', 'At least one site must be selected');
        return;
    }

    try {
        const response = await fetch('/api/configs', {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ title, description: description || null, site_ids: siteIds })
        });

        if (!response.ok) {
            const data = await response.json();
            throw new Error(data.message || 'Failed to create config');
        }

        // Close modal and reload
        bootstrap.Modal.getInstance(document.getElementById('createConfigModal')).hide();
        document.getElementById('create-config-form').reset();
        renderSitesCheckboxes(); // Reset checkboxes
        await loadConfigs();
    } catch (error) {
        showError('create-config-error', error.message);
    }
});

// View config
async function viewConfig(id) {
    try {
        const response = await fetch(`/api/configs/${id}`);
        if (!response.ok) throw new Error('Failed to load config');

        const config = await response.json();

        let html = `
            <div class="mb-3">
                <strong>Title:</strong> ${escapeHtml(config.title)}
            </div>
            <div class="mb-3">
                <strong>Description:</strong> ${config.description ? escapeHtml(config.description) : '<span class="text-muted">None</span>'}
            </div>
            <div class="mb-3">
                <strong>Sites (${config.site_count}):</strong>
                <ul class="mt-2">
                    ${config.sites.map(site => `
                        <li>${escapeHtml(site.name)} <small class="text-muted">(${site.ip_count} IP${site.ip_count !== 1 ? 's' : ''})</small></li>
                    `).join('')}
                </ul>
            </div>
            <div class="mb-3">
                <strong>Created:</strong> ${formatDate(config.created_at)}
            </div>
            <div class="mb-3">
                <strong>Last Updated:</strong> ${formatDate(config.updated_at)}
            </div>
        `;

        document.getElementById('view-config-content').innerHTML = html;
        new bootstrap.Modal(document.getElementById('viewConfigModal')).show();
    } catch (error) {
        alert('Error loading config: ' + error.message);
    }
}

// Edit config
async function editConfig(id) {
    try {
        const response = await fetch(`/api/configs/${id}`);
        if (!response.ok) throw new Error('Failed to load config');

        const config = await response.json();

        document.getElementById('edit-config-id').value = config.id;
        document.getElementById('edit-config-title').value = config.title;
        document.getElementById('edit-config-description').value = config.description || '';

        const selectedIds = config.sites.map(s => s.id);
        renderSitesCheckboxes(selectedIds, true);  // true = isEditMode

        new bootstrap.Modal(document.getElementById('editConfigModal')).show();
    } catch (error) {
        alert('Error loading config: ' + error.message);
    }
}

// Save edited config
document.getElementById('edit-config-btn').addEventListener('click', async function() {
    const id = document.getElementById('edit-config-id').value;
    const title = document.getElementById('edit-config-title').value.trim();
    const description = document.getElementById('edit-config-description').value.trim();
    const siteCheckboxes = document.querySelectorAll('.edit-site-checkbox:checked');
    const siteIds = Array.from(siteCheckboxes).map(cb => parseInt(cb.value));

    if (!title) {
        showError('edit-config-error', 'Title is required');
        return;
    }

    if (siteIds.length === 0) {
        showError('edit-config-error', 'At least one site must be selected');
        return;
    }

    try {
        const response = await fetch(`/api/configs/${id}`, {
            method: 'PUT',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ title, description: description || null, site_ids: siteIds })
        });

        if (!response.ok) {
            const data = await response.json();
            throw new Error(data.message || 'Failed to update config');
        }

        // Close modal and reload
        bootstrap.Modal.getInstance(document.getElementById('editConfigModal')).hide();
        await loadConfigs();
    } catch (error) {
        showError('edit-config-error', error.message);
    }
});

// Delete config
function deleteConfig(id, name) {
    document.getElementById('delete-config-id').value = id;
    document.getElementById('delete-config-name').textContent = name;
    new bootstrap.Modal(document.getElementById('deleteConfigModal')).show();
}

// Confirm delete
document.getElementById('confirm-delete-btn').addEventListener('click', async function() {
    const id = document.getElementById('delete-config-id').value;

    try {
        const response = await fetch(`/api/configs/${id}`, { method: 'DELETE' });

        if (!response.ok) {
            const data = await response.json();
            throw new Error(data.message || 'Failed to delete config');
        }

        // Close modal and reload
        bootstrap.Modal.getInstance(document.getElementById('deleteConfigModal')).hide();
        await loadConfigs();
    } catch (error) {
        alert('Error deleting config: ' + error.message);
    }
});

// Utility functions
function showError(elementId, message) {
    const errorEl = document.getElementById(elementId);
    const messageEl = document.getElementById(elementId + '-message');
    messageEl.textContent = message;
    errorEl.style.display = 'block';
}

function escapeHtml(text) {
    if (!text) return '';
    const div = document.createElement('div');
    div.textContent = text;
    return div.innerHTML;
}

function formatDate(dateStr) {
    if (!dateStr) return '-';
    const date = new Date(dateStr);
    return date.toLocaleDateString() + ' ' + date.toLocaleTimeString();
}
</script>
{% endblock %}