Files
2026-05-08 00:26:40 +03:00

104 lines
3.3 KiB
PHP

<?php
/**
* AI Usage Stats Endpoint
* GET /api/v1/ai-usage/stats
*
* Returns AI token consumption stats for the current tenant.
* Super admin sees system-wide; admin sees their tenant only.
*/
use App\Core\Database;
use App\Middleware\RoleMiddleware;
$decoded = RoleMiddleware::require(['super_admin', 'admin']);
$db = Database::getInstance();
$period = $_GET['period'] ?? 'month'; // day, week, month, all
$tenantId = $decoded['tenant_id'];
$isSuperAdmin = $decoded['role'] === 'super_admin';
// Date range
$dateCondition = match ($period) {
'day' => "AND a.created_at >= DATE_SUB(NOW(), INTERVAL 1 DAY)",
'week' => "AND a.created_at >= DATE_SUB(NOW(), INTERVAL 7 DAY)",
'month' => "AND a.created_at >= DATE_SUB(NOW(), INTERVAL 30 DAY)",
default => "",
};
$tenantCondition = $isSuperAdmin ? "" : "AND a.tenant_id = ?";
$params = $isSuperAdmin ? [] : [$tenantId];
// Totals
$sql = "SELECT
COUNT(*) as total_requests,
COALESCE(SUM(a.prompt_tokens), 0) as total_prompt_tokens,
COALESCE(SUM(a.completion_tokens), 0) as total_completion_tokens,
COALESCE(SUM(a.total_tokens), 0) as total_tokens,
COALESCE(SUM(a.estimated_cost), 0) as total_cost
FROM ai_usage_log a
WHERE 1=1 $tenantCondition $dateCondition";
$stmt = $db->prepare($sql);
$stmt->execute($params);
$totals = $stmt->fetch(\PDO::FETCH_ASSOC);
// Breakdown by action type
$sql2 = "SELECT
a.action_type,
COUNT(*) as requests,
COALESCE(SUM(a.total_tokens), 0) as tokens,
COALESCE(SUM(a.estimated_cost), 0) as cost
FROM ai_usage_log a
WHERE 1=1 $tenantCondition $dateCondition
GROUP BY a.action_type
ORDER BY tokens DESC";
$stmt2 = $db->prepare($sql2);
$stmt2->execute($params);
$breakdown = $stmt2->fetchAll(\PDO::FETCH_ASSOC);
// Breakdown by model
$sql3 = "SELECT
a.model_name,
COUNT(*) as requests,
COALESCE(SUM(a.total_tokens), 0) as tokens,
COALESCE(SUM(a.estimated_cost), 0) as cost
FROM ai_usage_log a
WHERE 1=1 $tenantCondition $dateCondition
GROUP BY a.model_name
ORDER BY tokens DESC";
$stmt3 = $db->prepare($sql3);
$stmt3->execute($params);
$modelBreakdown = $stmt3->fetchAll(\PDO::FETCH_ASSOC);
// Daily trend (last 30 days)
$sql4 = "SELECT
DATE(a.created_at) as date,
COALESCE(SUM(a.total_tokens), 0) as tokens,
COALESCE(SUM(a.estimated_cost), 0) as cost,
COUNT(*) as requests
FROM ai_usage_log a
WHERE 1=1 $tenantCondition AND a.created_at >= DATE_SUB(NOW(), INTERVAL 30 DAY)
GROUP BY DATE(a.created_at)
ORDER BY date ASC";
$stmt4 = $db->prepare($sql4);
$stmt4->execute($params);
$dailyTrend = $stmt4->fetchAll(\PDO::FETCH_ASSOC);
json_success([
'period' => $period,
'totals' => [
'requests' => (int) $totals['total_requests'],
'prompt_tokens' => (int) $totals['total_prompt_tokens'],
'completion_tokens' => (int) $totals['total_completion_tokens'],
'total_tokens' => (int) $totals['total_tokens'],
'estimated_cost_usd' => round((float) $totals['total_cost'], 4),
],
'by_action' => $breakdown,
'by_model' => $modelBreakdown,
'daily_trend' => $dailyTrend,
]);