Initial support for Stripe (And Improve Paypal)

[hcoop/portal.git] / money.sml

diff --git a/money.sml b/money.sml
index 8fa5ed7..5697f3b 100644 (file)
--- a/money.sml
+++ b/money.sml
@@ -358,4 +358,74 @@ fun billDues {descr, base, date} =
        applyCharges receive
     end
 
+(* Stripe *)
+
+type stripePayment = {charge_id : string, webuser_id : int, card_name : string, paid_on : string, gross_cents : int, fee_cents : int, net : real}
+
+fun mkStripeRow [charge_id, webuser_id, name, paid_on, gross, fee] =
+    {charge_id = C.stringFromSql charge_id, webuser_id = C.intFromSql webuser_id,
+     card_name = C.stringFromSql name, paid_on = C.stringFromSql paid_on, 
+     gross_cents = C.intFromSql gross, fee_cents = C.intFromSql fee,  net = real (C.intFromSql gross - C.intFromSql fee) / 100.0 }
+    | mkStripeRow row = Init.rowError ("stripe_payment", row)
+
+fun listUserPendingStripePayments uid =
+    C.map (getDb ()) mkStripeRow ($`SELECT charge_id, webuser_id, card_name, paid_on, gross, fee FROM stripe_payment
+                                    WHERE webuser_id = ^(C.intToSql uid)
+                                    AND charge_id NOT IN (SELECT stripe_charge_id FROM stripe_processed)
+                                    ORDER BY paid_on DESC`)
+
+fun listAllPendingStripePayments _ =
+    C.map (getDb ()) mkStripeRow ($`SELECT charge_id, webuser_id, card_name, paid_on, gross, fee FROM stripe_payment
+                                    WHERE charge_id NOT IN (SELECT stripe_charge_id FROM stripe_processed)
+                                    ORDER BY paid_on DESC`)
+
+fun lookupStripePayment id =
+    let
+       val c = getDb ()
+    in
+       (case C.oneOrNoRows c ($`SELECT charge_id, webuser_id, card_name, paid_on, gross, fee FROM stripe_payment WHERE charge_id = ^(C.stringToSql id)`) of
+            NONE => raise Fail "Stripe Payment Not Found"
+          | SOME r => mkStripeRow r)
+    end
+
+(* Not Used *)
+val stripeNotify : stripePayment -> bool =
+fn pmt =>
+    let
+       val user = Init.lookupUser (#webuser_id pmt)
+       val mail = Mail.mopen ()
+    in
+       Mail.mwrite (mail, "From: Hcoop Support System <support");
+       Mail.mwrite (mail, emailSuffix);
+       Mail.mwrite (mail, ">\nTo: payment");
+       Mail.mwrite (mail, emailSuffix);
+       Mail.mwrite (mail, "\n");
+       Mail.mwrite (mail, "Subject: Stripe Payment Received");
+       Mail.mwrite (mail, "\n\n");
+
+       Mail.mwrite (mail, "A member has paid us via Stripe. Visit the money page to process the payment.");
+       Mail.mwrite (mail, "Member: ");
+       Mail.mwrite (mail, #name user);
+       Mail.mwrite (mail, "\n");
+       Mail.mwrite (mail, "Amount (after fees): ");
+       Mail.mwrite (mail, Real.toString (#net pmt));
+       Mail.mwrite (mail, "\n\n");
+
+       OS.Process.isSuccess (Mail.mclose mail)
+    end
+
+val applyStripePayment : stripePayment -> int = 
+ fn pmt =>
+    let
+       val _ = Group.requireGroupName "money";
+       val amount = #net pmt;
+       val txid = addTransaction ("Stripe", amount, #paid_on pmt)
+    in
+       addCharge {trn = txid, usr = #webuser_id pmt, amount = amount};
+       applyCharges txid;
+       C.dml (getDb ()) ($`INSERT INTO stripe_processed (stripe_charge_id, transaction_id)
+                                  VALUES (^(C.stringToSql (#charge_id pmt)), ^(C.intToSql txid))`);
+       txid
+    end
 end
+