Submit bets to firestore

web/components/bet-panel.tsx

@@ -1,4 +1,7 @@
+import clsx from 'clsx'
 import React, { useState } from 'react'
+import { useUser } from '../hooks/use-user'
+import { Bet, saveBet } from '../lib/firebase/bets'
 import { Contract } from '../lib/firebase/contracts'
 import { Col } from './layout/col'
 import { Row } from './layout/row'
@@ -8,14 +11,51 @@ import { YesNoSelector } from './yes-no-selector'
 export function BetPanel(props: { contract: Contract; className?: string }) {
   const { contract, className } = props
 
+  const user = useUser()
+
   const [betChoice, setBetChoice] = useState<'YES' | 'NO'>('YES')
   const [betAmount, setBetAmount] = useState<number | undefined>(undefined)
 
+  const [isSubmitting, setIsSubmitting] = useState(false)
+  const [wasSubmitted, setWasSubmitted] = useState(false)
+
   function onBetChange(str: string) {
     const amount = parseInt(str)
     setBetAmount(isNaN(amount) ? undefined : amount)
   }
 
+  async function submitBet() {
+    if (!user || !betAmount) return
+
+    const now = Date.now()
+
+    const bet: Bet = {
+      id: `${now}-${user.id}`,
+      userId: user.id,
+      contractId: contract.id,
+      createdTime: now,
+      outcome: betChoice,
+      amount: betAmount,
+
+      // Placeholder.
+      dpmWeight: betAmount,
+    }
+
+    setIsSubmitting(true)
+
+    await saveBet(bet)
+
+    setIsSubmitting(false)
+    setWasSubmitted(true)
+  }
+
+  function newBet() {
+    setBetAmount(undefined)
+    setWasSubmitted(false)
+  }
+
+  const betDisabled = isSubmitting || wasSubmitted
+
   return (
     <Col className={'bg-gray-600 p-6 rounded ' + className}>
       <div className="p-2 font-medium">Pick outcome</div>
@@ -47,9 +87,7 @@ export function BetPanel(props: { contract: Contract; className?: string }) {
           <Spacer h={4} />
 
           <div className="p-2 font-medium">Average price</div>
-          <div className="px-2">
+          <div className="px-2">{betChoice === 'YES' ? 0.57 : 0.43} points</div>
-            {betChoice === 'YES' ? 0.57 : 0.43} points
-          </div>
 
           <Spacer h={2} />
 
@@ -60,7 +98,29 @@ export function BetPanel(props: { contract: Contract; className?: string }) {
 
           <Spacer h={6} />
 
-          <button className="btn btn-primary">Place bet</button>
+          <button
+            className={clsx(
+              'btn',
+              betDisabled ? 'btn-disabled' : 'btn-primary'
+            )}
+            onClick={betDisabled ? undefined : submitBet}
+          >
+            Place bet
+          </button>
+
+          {wasSubmitted && (
+            <Col>
+              <Spacer h={4} />
+
+              <div>Bet submitted!</div>
+
+              <Spacer h={4} />
+
+              <button className="btn btn-primary btn-xs" onClick={newBet}>
+                New bet
+              </button>
+            </Col>
+          )}
         </>
       )}
     </Col>

web/lib/firebase/bets.ts

@@ -0,0 +1,22 @@
+import { doc, setDoc } from 'firebase/firestore'
+import { db } from './init'
+
+export type Bet = {
+  id: string
+  userId: string
+  contractId: string
+
+  amount: number // Amount of USD bid
+  outcome: 'YES' | 'NO' // Chosen outcome
+
+  // Calculate and replace these on server?
+  createdTime: number
+  dpmWeight: number // Dynamic Parimutuel weight
+}
+
+// Push bet to Firestore
+// TODO: Should bets be subcollections under its contract?
+export async function saveBet(bet: Bet) {
+  const docRef = doc(db, 'contracts', bet.contractId, 'bets', bet.id)
+  await setDoc(docRef, bet)
+}

web/lib/firebase/contracts.ts

@@ -32,18 +32,6 @@ export type Contract = {
   resolution?: 'YES' | 'NO' | 'CANCEL' // Chosen by creator; must be one of outcomes
 }
 
-export type Bet = {
-  id: string
-  userId: string
-  contractId: string
-
-  size: number // Amount of USD bid
-  outcome: 'YES' | 'NO' // Chosen outcome
-  createdTime: number
-
-  dpmWeight: number // Dynamic Parimutuel weight
-}
-
 const db = getFirestore(app)
 const contractCollection = collection(db, 'contracts')
 
@@ -79,10 +67,3 @@ export function listenForContract(
     setContract(contractSnap.data() as Contract)
   })
 }
-
-// Push bet to Firestore
-// TODO: Should bets be subcollections under its contract?
-export async function setBet(bet: Bet) {
-  const docRef = doc(db, 'bets', bet.id)
-  await setDoc(docRef, bet)
-}

web/package-lock.json

@@ -9,6 +9,7 @@
         "@headlessui/react": "1.4.2",
         "@heroicons/react": "1.0.5",
         "chart.js": "3.6.1",
+        "clsx": "^1.1.1",
         "daisyui": "1.16.2",
         "firebase": "9.6.0",
         "next": "12.0.4",
@@ -2879,6 +2880,14 @@
         "wrap-ansi": "^7.0.0"
       }
     },
+    "node_modules/clsx": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/clsx/-/clsx-1.1.1.tgz",
+      "integrity": "sha512-6/bPho624p3S2pMyvP5kKBPXnI3ufHLObBFCfgx+LkeR5lg2XYy2hqZqUf45ypD8COn2bhgGJSUE+l5dhNBieA==",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/color": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/color/-/color-3.2.1.tgz",
@@ -9908,6 +9917,11 @@
         "wrap-ansi": "^7.0.0"
       }
     },
+    "clsx": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/clsx/-/clsx-1.1.1.tgz",
+      "integrity": "sha512-6/bPho624p3S2pMyvP5kKBPXnI3ufHLObBFCfgx+LkeR5lg2XYy2hqZqUf45ypD8COn2bhgGJSUE+l5dhNBieA=="
+    },
     "color": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/color/-/color-3.2.1.tgz",

web/package.json

@@ -12,6 +12,7 @@
     "@headlessui/react": "1.4.2",
     "@heroicons/react": "1.0.5",
     "chart.js": "3.6.1",
+    "clsx": "^1.1.1",
     "daisyui": "1.16.2",
     "firebase": "9.6.0",
     "next": "12.0.4",