Add currency

src/components/expense-form.tsx

@@ -118,16 +118,19 @@ export function ExpenseForm({ group, expense, onSubmit, onDelete }: Props) {
               render={({ field }) => (
                 <FormItem className="order-2 sm:order-3">
                   <FormLabel>Amount</FormLabel>
-                  <FormControl>
-                    <Input
-                      className="text-base"
-                      type="number"
-                      min={0.01}
-                      step={0.01}
-                      placeholder="0.00"
-                      {...field}
-                    />
-                  </FormControl>
+                  <div className="flex items-baseline gap-2">
+                    <span>{group.currency}</span>
+                    <FormControl>
+                      <Input
+                        className="text-base max-w-[120px]"
+                        type="number"
+                        min={0.01}
+                        step={0.01}
+                        placeholder="0.00"
+                        {...field}
+                      />
+                    </FormControl>
+                  </div>
                   <FormDescription>Enter the expense amount.</FormDescription>
                   <FormMessage />
                 </FormItem>

src/components/group-form.tsx

@@ -36,10 +36,12 @@ export function GroupForm({ group, onSubmit }: Props) {
     defaultValues: group
       ? {
           name: group.name,
+          currency: group.currency,
           participants: group.participants,
         }
       : {
           name: '',
+          currency: '',
           participants: [{ name: 'John' }, { name: 'Jane' }, { name: 'Jack' }],
         },
   })
@@ -60,7 +62,7 @@ export function GroupForm({ group, onSubmit }: Props) {
           <CardHeader>
             <CardTitle>Group information</CardTitle>
           </CardHeader>
-          <CardContent>
+          <CardContent className="grid grid-cols-1 sm:grid-cols-2 gap-4">
             <FormField
               control={form.control}
               name="name"
@@ -81,6 +83,28 @@ export function GroupForm({ group, onSubmit }: Props) {
                 </FormItem>
               )}
             />
+
+            <FormField
+              control={form.control}
+              name="currency"
+              render={({ field }) => (
+                <FormItem>
+                  <FormLabel>Currency symbol</FormLabel>
+                  <FormControl>
+                    <Input
+                      className="text-base"
+                      placeholder="$, €, £…"
+                      max={5}
+                      {...field}
+                    />
+                  </FormControl>
+                  <FormDescription>
+                    We’ll used it to display amounts.
+                  </FormDescription>
+                  <FormMessage />
+                </FormItem>
+              )}
+            />
           </CardContent>
         </Card>
         <Card>