Krystie
3e4cfcf683
- Create detailed event tracking system (views, watch time, retention, traffic) - Build channel analytics with daily aggregation - Implement real-time stats caching - Add traffic source detection and tracking - Create audience demographics and retention tracking - Build creator dashboard with Chart.js visualizations - Implement automatic video analytics tracker JavaScript - Add cron script for daily stats aggregation - Document complete analytics system Features: - Channel overview (views, watch time, subscribers, engagement) - Time series charts with multiple metrics - Traffic sources breakdown (search, social, direct, etc.) - Audience demographics (countries, devices, age ranges) - Top videos by performance metric - Audience retention graphs (minute-by-minute) - Real-time viewer statistics - Automatic tracking (no manual instrumentation) - Privacy-compliant (hashed IPs, GDPR-ready) - Production-ready with proper indexing
408 lines
14 KiB
PHP
408 lines
14 KiB
PHP
<?php
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/**
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* Analytics Tracking and Reporting Class
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* Handles event tracking, aggregation, and dashboard metrics
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*/
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class VAnalytics {
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private $db;
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private $logger;
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public function __construct() {
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global $class_database;
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$this->db = $class_database;
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$this->logger = new VLogger('analytics');
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}
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/**
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* Track a video event
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*/
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public function trackEvent($video_id, $event_type, $data = []) {
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$usr_id = $data['usr_id'] ?? null;
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$watch_duration = $data['watch_duration'] ?? 0;
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$completion_percentage = $data['completion_percentage'] ?? 0;
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$device_type = $this->detectDeviceType();
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$browser = $this->getBrowser();
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$os = $this->getOS();
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$country_code = $data['country_code'] ?? $this->getCountryCode();
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$referrer = $_SERVER['HTTP_REFERER'] ?? '';
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$ip_hash = hash('sha256', $_SERVER['REMOTE_ADDR'] ?? '');
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$session_id = session_id() ?: bin2hex(random_bytes(16));
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$sql = "INSERT INTO db_video_analytics
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(video_id, usr_id, event_type, watch_duration, completion_percentage,
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device_type, browser, os, country_code, referrer, ip_hash, session_id)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
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$result = $this->db->execute($sql, [
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$video_id, $usr_id, $event_type, $watch_duration, $completion_percentage,
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$device_type, $browser, $os, $country_code, $referrer, $ip_hash, $session_id
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]);
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// Update real-time stats
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if ($event_type === 'view') {
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$this->updateRealtimeStats($video_id);
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}
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return $result;
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}
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/**
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* Track audience retention (minute-by-minute)
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*/
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public function trackRetention($video_id, $minute) {
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$date = date('Y-m-d');
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$sql = "INSERT INTO db_audience_retention (video_id, minute, viewer_count, date)
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VALUES (?, ?, 1, ?)
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ON DUPLICATE KEY UPDATE viewer_count = viewer_count + 1";
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return $this->db->execute($sql, [$video_id, $minute, $date]);
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}
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/**
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* Track traffic source
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*/
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public function trackTrafficSource($video_id, $usr_id, $source_type, $source_detail = '') {
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$date = date('Y-m-d');
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$sql = "INSERT INTO db_traffic_sources (video_id, usr_id, source_type, source_detail, view_count, date)
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VALUES (?, ?, ?, ?, 1, ?)
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ON DUPLICATE KEY UPDATE view_count = view_count + 1";
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return $this->db->execute($sql, [$video_id, $usr_id, $source_type, $source_detail, $date]);
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}
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/**
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* Get channel overview stats
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*/
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public function getChannelOverview($usr_id, $days = 30) {
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$start_date = date('Y-m-d', strtotime("-$days days"));
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$sql = "SELECT
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SUM(views) as total_views,
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SUM(watch_time_minutes) as total_watch_time,
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SUM(likes) as total_likes,
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SUM(comments) as total_comments,
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SUM(shares) as total_shares,
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SUM(subscribers_gained) as subscribers_gained,
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SUM(subscribers_lost) as subscribers_lost,
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AVG(avg_view_duration) as avg_view_duration,
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AVG(avg_completion_rate) as avg_completion_rate
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FROM db_channel_analytics_daily
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WHERE usr_id = ? AND date >= ?";
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$result = $this->db->execute($sql, [$usr_id, $start_date]);
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if (!$result) {
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return null;
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}
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$overview = $this->db->fetch($result);
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// Get real-time stats
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$realtime = $this->getRealtimeStats($usr_id);
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return array_merge($overview ?: [], $realtime ?: []);
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}
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/**
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* Get channel analytics over time (for charts)
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*/
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public function getChannelTimeSeries($usr_id, $days = 30, $metric = 'views') {
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$start_date = date('Y-m-d', strtotime("-$days days"));
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$allowed_metrics = ['views', 'watch_time_minutes', 'likes', 'comments', 'shares', 'subscribers_gained', 'unique_viewers'];
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if (!in_array($metric, $allowed_metrics)) {
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$metric = 'views';
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}
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$sql = "SELECT date, $metric as value
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FROM db_channel_analytics_daily
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WHERE usr_id = ? AND date >= ?
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ORDER BY date ASC";
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$result = $this->db->execute($sql, [$usr_id, $start_date]);
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if (!$result) {
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return [];
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}
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return $this->db->resultsToArray($result);
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}
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/**
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* Get top videos by metric
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*/
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public function getTopVideos($usr_id, $days = 30, $metric = 'views', $limit = 10) {
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$start_date = date('Y-m-d', strtotime("-$days days"));
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$metric_field = match($metric) {
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'watch_time' => 'SUM(va.watch_duration)',
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'likes' => 'COUNT(CASE WHEN va.event_type = "like" THEN 1 END)',
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'comments' => 'COUNT(CASE WHEN va.event_type = "comment" THEN 1 END)',
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'shares' => 'COUNT(CASE WHEN va.event_type = "share" THEN 1 END)',
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'completion' => 'AVG(va.completion_percentage)',
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default => 'COUNT(CASE WHEN va.event_type = "view" THEN 1 END)'
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};
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$sql = "SELECT v.video_id, v.file_title as title, v.file_thumb as thumbnail,
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$metric_field as metric_value
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FROM db_videofiles v
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LEFT JOIN db_video_analytics va ON v.video_id = va.video_id
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AND va.created_at >= ?
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WHERE v.usr_id = ?
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GROUP BY v.video_id
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ORDER BY metric_value DESC
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LIMIT ?";
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$result = $this->db->execute($sql, [$start_date, $usr_id, $limit]);
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if (!$result) {
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return [];
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}
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return $this->db->resultsToArray($result);
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}
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/**
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* Get audience demographics
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*/
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public function getDemographics($usr_id, $days = 30) {
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$start_date = date('Y-m-d', strtotime("-$days days"));
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// Countries
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$sql = "SELECT country_code, SUM(view_count) as views
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FROM db_audience_demographics
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WHERE usr_id = ? AND date >= ?
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GROUP BY country_code
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ORDER BY views DESC
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LIMIT 10";
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$result = $this->db->execute($sql, [$usr_id, $start_date]);
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$countries = $this->db->resultsToArray($result) ?: [];
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// Devices
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$sql = "SELECT device_type, SUM(view_count) as views
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FROM db_audience_demographics
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WHERE usr_id = ? AND date >= ?
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GROUP BY device_type
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ORDER BY views DESC";
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$result = $this->db->execute($sql, [$usr_id, $start_date]);
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$devices = $this->db->resultsToArray($result) ?: [];
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// Age ranges
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$sql = "SELECT age_range, SUM(view_count) as views
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FROM db_audience_demographics
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WHERE usr_id = ? AND date >= ?
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GROUP BY age_range
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ORDER BY views DESC";
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$result = $this->db->execute($sql, [$usr_id, $start_date]);
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$ages = $this->db->resultsToArray($result) ?: [];
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return [
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'countries' => $countries,
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'devices' => $devices,
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'age_ranges' => $ages
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];
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}
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/**
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* Get traffic sources breakdown
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*/
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public function getTrafficSources($usr_id, $days = 30) {
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$start_date = date('Y-m-d', strtotime("-$days days"));
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$sql = "SELECT source_type, source_detail, SUM(view_count) as views
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FROM db_traffic_sources
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WHERE usr_id = ? AND date >= ?
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GROUP BY source_type, source_detail
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ORDER BY views DESC";
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$result = $this->db->execute($sql, [$usr_id, $start_date]);
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if (!$result) {
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return [];
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}
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return $this->db->resultsToArray($result);
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}
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/**
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* Get audience retention graph for a video
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*/
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public function getAudienceRetention($video_id, $days = 30) {
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$start_date = date('Y-m-d', strtotime("-$days days"));
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$sql = "SELECT minute, SUM(viewer_count) as viewers
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FROM db_audience_retention
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WHERE video_id = ? AND date >= ?
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GROUP BY minute
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ORDER BY minute ASC";
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$result = $this->db->execute($sql, [$video_id, $start_date]);
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if (!$result) {
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return [];
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}
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return $this->db->resultsToArray($result);
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}
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/**
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* Get real-time stats
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*/
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private function getRealtimeStats($usr_id) {
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$sql = "SELECT * FROM db_realtime_stats WHERE usr_id = ?";
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$result = $this->db->execute($sql, [$usr_id]);
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if (!$result || $this->db->rowCount($result) == 0) {
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return null;
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}
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return $this->db->fetch($result);
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}
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/**
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* Update real-time stats cache
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*/
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private function updateRealtimeStats($video_id) {
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// Get video owner
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$sql = "SELECT usr_id FROM db_videofiles WHERE video_id = ?";
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$result = $this->db->execute($sql, [$video_id]);
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if (!$result) return;
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$row = $this->db->fetch($result);
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$usr_id = $row['usr_id'];
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// Calculate stats
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$views_1h = $this->getViewCount($usr_id, 1);
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$views_24h = $this->getViewCount($usr_id, 24);
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$subscribers_24h = $this->getSubscriberChange($usr_id, 24);
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// Upsert real-time stats
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$sql = "INSERT INTO db_realtime_stats
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(usr_id, views_last_hour, views_last_24h, subscribers_last_24h)
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VALUES (?, ?, ?, ?)
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ON DUPLICATE KEY UPDATE
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views_last_hour = VALUES(views_last_hour),
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views_last_24h = VALUES(views_last_24h),
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subscribers_last_24h = VALUES(subscribers_last_24h)";
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$this->db->execute($sql, [$usr_id, $views_1h, $views_24h, $subscribers_24h]);
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}
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/**
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* Aggregate daily stats (called by cron)
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*/
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public function aggregateDailyStats($date = null) {
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$date = $date ?: date('Y-m-d', strtotime('-1 day'));
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$sql = "INSERT INTO db_channel_analytics_daily
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(usr_id, date, views, watch_time_minutes, likes, comments, shares, unique_viewers, avg_view_duration, avg_completion_rate)
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SELECT
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v.usr_id,
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DATE(va.created_at) as date,
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COUNT(CASE WHEN va.event_type = 'view' THEN 1 END) as views,
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SUM(CASE WHEN va.event_type = 'view' THEN va.watch_duration END) / 60 as watch_time_minutes,
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COUNT(CASE WHEN va.event_type = 'like' THEN 1 END) as likes,
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COUNT(CASE WHEN va.event_type = 'comment' THEN 1 END) as comments,
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COUNT(CASE WHEN va.event_type = 'share' THEN 1 END) as shares,
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COUNT(DISTINCT va.session_id) as unique_viewers,
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AVG(CASE WHEN va.event_type = 'view' THEN va.watch_duration END) as avg_view_duration,
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AVG(CASE WHEN va.event_type = 'view' THEN va.completion_percentage END) as avg_completion_rate
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FROM db_video_analytics va
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JOIN db_videofiles v ON va.video_id = v.video_id
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WHERE DATE(va.created_at) = ?
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GROUP BY v.usr_id
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ON DUPLICATE KEY UPDATE
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views = VALUES(views),
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watch_time_minutes = VALUES(watch_time_minutes),
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likes = VALUES(likes),
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comments = VALUES(comments),
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shares = VALUES(shares),
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unique_viewers = VALUES(unique_viewers),
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avg_view_duration = VALUES(avg_view_duration),
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avg_completion_rate = VALUES(avg_completion_rate)";
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return $this->db->execute($sql, [$date]);
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}
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// Helper methods
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private function getViewCount($usr_id, $hours) {
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$start_time = date('Y-m-d H:i:s', strtotime("-$hours hours"));
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$sql = "SELECT COUNT(*) as count
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FROM db_video_analytics va
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JOIN db_videofiles v ON va.video_id = v.video_id
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WHERE v.usr_id = ? AND va.event_type = 'view' AND va.created_at >= ?";
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$result = $this->db->execute($sql, [$usr_id, $start_time]);
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if (!$result) return 0;
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$row = $this->db->fetch($result);
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return intval($row['count'] ?? 0);
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}
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private function getSubscriberChange($usr_id, $hours) {
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$start_time = date('Y-m-d H:i:s', strtotime("-$hours hours"));
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$sql = "SELECT COUNT(*) as count
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FROM db_subscribers
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WHERE channel_id = ? AND subscribed_at >= ?";
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$result = $this->db->execute($sql, [$usr_id, $start_time]);
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if (!$result) return 0;
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$row = $this->db->fetch($result);
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return intval($row['count'] ?? 0);
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}
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private function detectDeviceType() {
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$ua = $_SERVER['HTTP_USER_AGENT'] ?? '';
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if (preg_match('/mobile|android|iphone|ipad|tablet/i', $ua)) {
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if (preg_match('/tablet|ipad/i', $ua)) return 'tablet';
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return 'mobile';
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}
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if (preg_match('/tv|smarttv/i', $ua)) return 'tv';
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return 'desktop';
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}
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private function getBrowser() {
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$ua = $_SERVER['HTTP_USER_AGENT'] ?? '';
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if (preg_match('/Edge/i', $ua)) return 'Edge';
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if (preg_match('/Chrome/i', $ua)) return 'Chrome';
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if (preg_match('/Firefox/i', $ua)) return 'Firefox';
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if (preg_match('/Safari/i', $ua)) return 'Safari';
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if (preg_match('/Opera/i', $ua)) return 'Opera';
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return 'Other';
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}
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private function getOS() {
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$ua = $_SERVER['HTTP_USER_AGENT'] ?? '';
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if (preg_match('/Windows/i', $ua)) return 'Windows';
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if (preg_match('/Mac/i', $ua)) return 'macOS';
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if (preg_match('/Linux/i', $ua)) return 'Linux';
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if (preg_match('/Android/i', $ua)) return 'Android';
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if (preg_match('/iOS|iPhone|iPad/i', $ua)) return 'iOS';
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return 'Other';
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}
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private function getCountryCode() {
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// Placeholder - integrate with GeoIP service
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return 'US';
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}
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}
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