package jwt

import (
	"github.com/golang-jwt/jwt"
	"github.com/rs/zerolog/log"
)

// Decode a token
func Decode(token string) (*Claims, error) {
	// Create token claims
	tokenClaims, err := jwt.ParseWithClaims(
		token,
		&Claims{},
		func(token *jwt.Token) (interface{}, error) {
			return secret, nil
		},
	)

	// Found token
	if tokenClaims != nil {
		// Map to claims struct & if ok & valid then return
		if claims, ok := tokenClaims.Claims.(*Claims); ok && tokenClaims.Valid {
			return claims, nil
		}
	}

	log.Err(err).Msg("Could not decode JWT claims")
	return nil, err
}