From c261fc274360711baf1033f12907971a96b13548 Mon Sep 17 00:00:00 2001
From: James Grugett <jahooma@gmail.com>
Date: Mon, 18 Jul 2022 19:17:04 -0500
Subject: [PATCH] Validate lowLimitProb < highLimitProb

---
 functions/src/place-bet.ts | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/functions/src/place-bet.ts b/functions/src/place-bet.ts
index 12589752..56007933 100644
--- a/functions/src/place-bet.ts
+++ b/functions/src/place-bet.ts
@@ -29,16 +29,26 @@ const bodySchema = z.object({
   amount: z.number().gte(1),
 })
 
-const binarySchema = z.union([
-  z.object({
-    outcome: z.enum(['YES', 'NO']),
-    limitProb: z.number().gte(0.001).lte(0.999).optional(),
-  }),
-  z.object({
-    lowLimitProb: z.number().gte(0.001).lte(0.999),
-    highLimitProb: z.number().gte(0.001).lte(0.999),
-  }),
-])
+const binarySchema = z
+  .union([
+    z.object({
+      outcome: z.enum(['YES', 'NO']),
+      limitProb: z.number().gte(0.001).lte(0.999).optional(),
+    }),
+    z.object({
+      lowLimitProb: z.number().gte(0.001).lte(0.999),
+      highLimitProb: z.number().gte(0.001).lte(0.999),
+    }),
+  ])
+  .superRefine((data, ctx) => {
+    if ('lowLimitProb' in data && data.lowLimitProb >= data.highLimitProb) {
+      ctx.addIssue({
+        code: z.ZodIssueCode.custom,
+        path: ['lowLimitProb'],
+        message: 'lowLimitProb should be less than highLimitProb',
+      })
+    }
+  })
 
 const freeResponseSchema = z.object({
   outcome: z.string(),