52 lines
1.0 KiB
Go
52 lines
1.0 KiB
Go
package question
|
|
|
|
import (
|
|
"math/rand"
|
|
|
|
"github.com/hhhapz/codequest/models"
|
|
)
|
|
|
|
var bank Bank
|
|
|
|
// Bank is a map of different questions registered.
|
|
// The key of the map is the ID of the question.
|
|
//
|
|
// A custom type was created for convenience for picking random questions based
|
|
// on difficulties, and for registration.
|
|
type Bank [][]*Question
|
|
|
|
func Register(q *Question) {
|
|
bank[q.Level] = append(bank[q.Level], q)
|
|
}
|
|
|
|
func Questions(user *models.User, level Level) []*Question {
|
|
qs := make([]*Question, len(bank))
|
|
r := rand.New(rand.NewSource(user.CreatedAt.Time().Unix()))
|
|
for level := range bank {
|
|
idx := r.Intn(len(bank[level]))
|
|
qs[level] = bank[level][idx]
|
|
}
|
|
|
|
return qs
|
|
}
|
|
|
|
type Question struct {
|
|
ID string
|
|
Text string
|
|
Level Level
|
|
|
|
Generate func(user *models.User) string
|
|
Validate func(user *models.User, solution string) bool
|
|
}
|
|
|
|
// Level represents the difficulty of each question.
|
|
// As the level gets higher, the difficulty also gets higher.
|
|
type Level int
|
|
|
|
// Allowed difficulty levels.
|
|
const (
|
|
Level1 Level = iota
|
|
Level2
|
|
Level3
|
|
)
|