Add premium My Case MVP

api/stripe-checkout.php

@@ -18,7 +18,7 @@ if ($userId <= 0 || $email === '') {
 $input = dbnToolsJsonInput(2000);
 $sku = (string)($input['sku'] ?? '');
 
-$validSubscriptions = ['light', 'pro', 'pro_plus'];
+$validSubscriptions = ['plus', 'pro'];
 $validTopups = ['topup_s', 'topup_m', 'topup_l'];
 
 if (!in_array($sku, array_merge($validSubscriptions, $validTopups), true)) {
@@ -55,9 +55,18 @@ try {
     ];
 
     if ($isSub) {
+        FreeTier::ensureRow($userId);
+        $detail = FreeTier::balanceDetail($userId);
         $params['subscription_data'] = [
             'metadata' => ['user_id' => (string)$userId, 'tier' => $sku],
         ];
+        if ($sku === 'plus' && empty($detail['trial_started_at'])) {
+            $params['subscription_data']['trial_period_days'] = 14;
+            $params['subscription_data']['trial_settings'] = [
+                'end_behavior' => ['missing_payment_method' => 'cancel'],
+            ];
+        }
+        $params['payment_method_collection'] = 'always';
     } else {
         $params['payment_intent_data'] = [
             'metadata' => ['user_id' => (string)$userId, 'sku' => $sku, 'credits' => (string)StripeClient::topupCredits($sku)],