{% extends "base.html" %}

{% block title %}Scheduled Scans - 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>Scheduled Scans</h1>
            <a href="{{ url_for('main.create_schedule') }}" class="btn btn-primary">
                <i class="bi bi-plus-circle"></i> New Schedule
            </a>
        </div>
    </div>
</div>

<!-- Summary Stats -->
<div class="row mb-4">
    <div class="col-md-3">
        <div class="stat-card">
            <div class="stat-value" id="total-schedules">-</div>
            <div class="stat-label">Total Schedules</div>
        </div>
    </div>
    <div class="col-md-3">
        <div class="stat-card">
            <div class="stat-value" id="enabled-schedules">-</div>
            <div class="stat-label">Enabled</div>
        </div>
    </div>
    <div class="col-md-3">
        <div class="stat-card">
            <div class="stat-value" id="next-run-time">-</div>
            <div class="stat-label">Next Run</div>
        </div>
    </div>
    <div class="col-md-3">
        <div class="stat-card">
            <div class="stat-value" id="recent-executions">-</div>
            <div class="stat-label">Executions (24h)</div>
        </div>
    </div>
</div>

<!-- Schedules Table -->
<div class="row">
    <div class="col-12">
        <div class="card">
            <div class="card-header">
                <h5 class="mb-0">All Schedules</h5>
            </div>
            <div class="card-body">
                <div id="schedules-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 schedules...</p>
                </div>
                <div id="schedules-error" style="display: none;" class="alert alert-danger">
                    <strong>Error:</strong> <span id="error-message"></span>
                </div>
                <div id="schedules-content" style="display: none;">
                    <div class="table-responsive">
                        <table class="table table-hover">
                            <thead>
                                <tr>
                                    <th>ID</th>
                                    <th>Name</th>
                                    <th>Schedule (Cron)</th>
                                    <th>Next Run</th>
                                    <th>Last Run</th>
                                    <th>Status</th>
                                    <th>Actions</th>
                                </tr>
                            </thead>
                            <tbody id="schedules-tbody">
                                <!-- Populated by JavaScript -->
                            </tbody>
                        </table>
                    </div>
                    <div id="empty-state" style="display: none;" class="text-center py-5">
                        <i class="bi bi-calendar-x" style="font-size: 3rem; color: #64748b;"></i>
                        <h5 class="mt-3 text-muted">No schedules configured</h5>
                        <p class="text-muted">Create your first schedule to automate scans</p>
                        <a href="{{ url_for('main.create_schedule') }}" class="btn btn-primary mt-2">
                            <i class="bi bi-plus-circle"></i> Create Schedule
                        </a>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<script>
// Global variables
let schedulesData = [];

// Format relative time (e.g., "in 2 hours", "5 minutes ago")
function formatRelativeTime(timestamp) {
    if (!timestamp) return 'Never';

    const now = new Date();
    const date = new Date(timestamp);
    const diffMs = date - now;
    const diffMinutes = Math.floor(diffMs / 60000);
    const diffHours = Math.floor(diffMs / 3600000);
    const diffDays = Math.floor(diffMs / 86400000);

    // Get local time string for tooltip/fallback
    const localStr = date.toLocaleString();

    if (diffMs < 0) {
        // Past time
        const absDiffMinutes = Math.abs(diffMinutes);
        const absDiffHours = Math.abs(diffHours);
        const absDiffDays = Math.abs(diffDays);

        if (absDiffMinutes < 1) return 'Just now';
        if (absDiffMinutes === 1) return '1 minute ago';
        if (absDiffMinutes < 60) return `${absDiffMinutes} minutes ago`;
        if (absDiffHours === 1) return '1 hour ago';
        if (absDiffHours < 24) return `${absDiffHours} hours ago`;
        if (absDiffDays === 1) return 'Yesterday';
        if (absDiffDays < 7) return `${absDiffDays} days ago`;
        return `<span title="${localStr}">${absDiffDays} days ago</span>`;
    } else {
        // Future time
        if (diffMinutes < 1) return 'In less than a minute';
        if (diffMinutes === 1) return 'In 1 minute';
        if (diffMinutes < 60) return `In ${diffMinutes} minutes`;
        if (diffHours === 1) return 'In 1 hour';
        if (diffHours < 24) return `In ${diffHours} hours`;
        if (diffDays === 1) return 'Tomorrow';
        if (diffDays < 7) return `In ${diffDays} days`;
        return `<span title="${localStr}">In ${diffDays} days</span>`;
    }
}

// Get status badge HTML
function getStatusBadge(enabled) {
    if (enabled) {
        return '<span class="badge bg-success">Enabled</span>';
    } else {
        return '<span class="badge bg-secondary">Disabled</span>';
    }
}

// Load schedules from API
async function loadSchedules() {
    try {
        const response = await fetch('/api/schedules');

        if (!response.ok) {
            throw new Error(`HTTP ${response.status}: ${response.statusText}`);
        }

        const data = await response.json();
        schedulesData = data.schedules || [];

        renderSchedules();
        updateStats(data);

        // Hide loading, show content
        document.getElementById('schedules-loading').style.display = 'none';
        document.getElementById('schedules-error').style.display = 'none';
        document.getElementById('schedules-content').style.display = 'block';

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

// Render schedules table
function renderSchedules() {
    const tbody = document.getElementById('schedules-tbody');
    tbody.innerHTML = '';

    if (schedulesData.length === 0) {
        document.querySelector('.table-responsive').style.display = 'none';
        document.getElementById('empty-state').style.display = 'block';
        return;
    }

    document.querySelector('.table-responsive').style.display = 'block';
    document.getElementById('empty-state').style.display = 'none';

    schedulesData.forEach(schedule => {
        const row = document.createElement('tr');
        row.classList.add('schedule-row');

        row.innerHTML = `
            <td class="mono">#${schedule.id}</td>
            <td>
                <strong>${escapeHtml(schedule.name)}</strong>
                <br>
                <small class="text-muted">Config ID: ${schedule.config_id || 'N/A'}</small>
            </td>
            <td class="mono"><code>${escapeHtml(schedule.cron_expression)}</code></td>
            <td>${formatRelativeTime(schedule.next_run)}</td>
            <td>${formatRelativeTime(schedule.last_run)}</td>
            <td>
                <div class="form-check form-switch">
                    <input class="form-check-input" type="checkbox"
                           id="enable-${schedule.id}"
                           ${schedule.enabled ? 'checked' : ''}
                           onchange="toggleSchedule(${schedule.id}, this.checked)">
                    <label class="form-check-label" for="enable-${schedule.id}">
                        ${schedule.enabled ? 'Enabled' : 'Disabled'}
                    </label>
                </div>
            </td>
            <td>
                <div class="btn-group btn-group-sm" role="group">
                    <button class="btn btn-secondary" onclick="triggerSchedule(${schedule.id})"
                            title="Run Now">
                        <i class="bi bi-play-fill"></i>
                    </button>
                    <a href="/schedules/${schedule.id}/edit" class="btn btn-secondary"
                       title="Edit">
                        <i class="bi bi-pencil"></i>
                    </a>
                    <button class="btn btn-danger" onclick="deleteSchedule(${schedule.id})"
                            title="Delete">
                        <i class="bi bi-trash"></i>
                    </button>
                </div>
            </td>
        `;

        tbody.appendChild(row);
    });
}

// Update stats
function updateStats(data) {
    const totalSchedules = data.total || schedulesData.length;
    const enabledSchedules = schedulesData.filter(s => s.enabled).length;

    // Find next run time
    let nextRun = null;
    schedulesData.filter(s => s.enabled && s.next_run).forEach(s => {
        const scheduleNext = new Date(s.next_run);
        if (!nextRun || scheduleNext < nextRun) {
            nextRun = scheduleNext;
        }
    });

    // Calculate executions in last 24h (would need API support)
    const recentExecutions = data.recent_executions || 0;

    document.getElementById('total-schedules').textContent = totalSchedules;
    document.getElementById('enabled-schedules').textContent = enabledSchedules;
    document.getElementById('next-run-time').innerHTML = nextRun
        ? `<small>${formatRelativeTime(nextRun)}</small>`
        : '<small>None</small>';
    document.getElementById('recent-executions').textContent = recentExecutions;
}

// Toggle schedule enabled/disabled
async function toggleSchedule(scheduleId, enabled) {
    try {
        const response = await fetch(`/api/schedules/${scheduleId}`, {
            method: 'PUT',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify({ enabled: enabled })
        });

        if (!response.ok) {
            throw new Error(`Failed to update schedule: ${response.statusText}`);
        }

        // Reload schedules
        await loadSchedules();

        // Show success notification
        showNotification(`Schedule ${enabled ? 'enabled' : 'disabled'} successfully`, 'success');

    } catch (error) {
        console.error('Error toggling schedule:', error);
        showNotification(`Error: ${error.message}`, 'danger');

        // Revert checkbox
        document.getElementById(`enable-${scheduleId}`).checked = !enabled;
    }
}

// Manually trigger schedule
async function triggerSchedule(scheduleId) {
    if (!confirm('Run this schedule now?')) {
        return;
    }

    try {
        const response = await fetch(`/api/schedules/${scheduleId}/trigger`, {
            method: 'POST'
        });

        if (!response.ok) {
            throw new Error(`Failed to trigger schedule: ${response.statusText}`);
        }

        const data = await response.json();

        showNotification(`Scan triggered! Redirecting to scan #${data.scan_id}...`, 'success');

        // Redirect to scan detail page
        setTimeout(() => {
            window.location.href = `/scans/${data.scan_id}`;
        }, 1500);

    } catch (error) {
        console.error('Error triggering schedule:', error);
        showNotification(`Error: ${error.message}`, 'danger');
    }
}

// Delete schedule
async function deleteSchedule(scheduleId) {
    const schedule = schedulesData.find(s => s.id === scheduleId);
    const scheduleName = schedule ? schedule.name : `#${scheduleId}`;

    if (!confirm(`Delete schedule "${scheduleName}"?\n\nThis action cannot be undone. Associated scan history will be preserved.`)) {
        return;
    }

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

        if (!response.ok) {
            throw new Error(`Failed to delete schedule: ${response.statusText}`);
        }

        showNotification('Schedule deleted successfully', 'success');

        // Reload schedules
        await loadSchedules();

    } catch (error) {
        console.error('Error deleting schedule:', error);
        showNotification(`Error: ${error.message}`, 'danger');
    }
}

// Show notification
function showNotification(message, type = 'info') {
    const container = document.getElementById('notification-container');
    const notification = document.createElement('div');
    notification.className = `alert alert-${type} alert-dismissible fade show mb-2`;

    notification.innerHTML = `
        ${message}
        <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
    `;

    container.appendChild(notification);

    // Auto-remove after 5 seconds
    setTimeout(() => {
        notification.remove();
    }, 5000);
}

// Escape HTML to prevent XSS
function escapeHtml(text) {
    if (!text) return '';
    const div = document.createElement('div');
    div.textContent = text;
    return div.innerHTML;
}

// Load schedules on page load
document.addEventListener('DOMContentLoaded', () => {
    loadSchedules();

    // Refresh every 30 seconds
    setInterval(loadSchedules, 30000);
});
</script>
{% endblock %}