56 lines
936 B
Go
56 lines
936 B
Go
package main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"log"
|
|
"math/rand"
|
|
"net/http"
|
|
)
|
|
|
|
type prob struct {
|
|
Operation string
|
|
First int
|
|
Last int
|
|
}
|
|
|
|
type JsonHandler func(http.ResponseWriter, *http.Request)
|
|
|
|
func (h JsonHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
|
|
w.Header().Set("Content-Type", "application/json")
|
|
h(w, req)
|
|
}
|
|
|
|
func problem(w http.ResponseWriter, req *http.Request) {
|
|
operation := "+"
|
|
if r := rand.Intn(2); r == 0 {
|
|
operation = "-"
|
|
}
|
|
|
|
first := rand.Intn(MAX)
|
|
var second int
|
|
if operation == "-" {
|
|
if first == 0 {
|
|
second = 0
|
|
} else {
|
|
second = rand.Intn(first)
|
|
}
|
|
} else {
|
|
second = rand.Intn(MAX)
|
|
}
|
|
|
|
r := prob{operation, first, second}
|
|
|
|
b, err := json.Marshal(r)
|
|
if err != nil {
|
|
log.Fatal("issue with json marshalling")
|
|
}
|
|
j := string(b)
|
|
fmt.Println(j)
|
|
fmt.Fprintf(w, j)
|
|
}
|
|
|
|
func attempt(w http.ResponseWriter, req *http.Request) {
|
|
fmt.Fprintf(w, "hello world")
|
|
}
|