package main

import (
    "net/http"
    "github.com/phrkdll/must/pkg/must"
)

func divide(dividend, divisor float64) (float64, error) {
    if divisor == 0.0 {
        return 0.0, errors.New("can't divide by zero")
    }

    return dividend / divisor, nil
}

func someOtherFunc(val string) error {
    if val == "" {
        return errors.New("val must not be empty")
    }

    return nil
}

func someHandler(w http.ResponseWriter, r *http.Request) {
    defer must.Recover()
    // OR
    defer must.RecoverWith(func(err error) {
        // ... 
    })

    // Without value return
    must.Succeed(someOtherFunc("")).ElseRespond(w, http.StatusInternalServerError)
    // OR
    must.Succeed(someOtherFunc("")).ElseExecute(func () {
        fmt.Println("panicing!")
    })
    // OR
    must.Succeed(someOtherFunc("")).ElsePanic()

    // With value return
    quotient := must.Return(divide(1, 0)).ElseRespond(w, http.StatusInternalServerError)
    // OR
    quotient := must.Return(divide(1, 0)).ElseExecute(func (val any) {
        fmt.Println("panicing!")
    })
    // OR
    quotient := must.Return(divide(1, 0)).ElsePanic()

    w.WriteHeader(http.StatusOK)
    w.Write([]byte{byte(quotient)})
}