package commands

import (
	"errors"
	"redisClone/pkg/core"
)

func Hget(args []string, getShard func(k string) *core.Shard) interface{} {
	key := args[1]
	field := args[2]
	s := getShard(key)
	item, exists := s.Data[key]
	if !exists {
		return nil
	}
	hash, ok := item.Value.(map[string]string)
	if !ok {
		return errors.New("WRONGTYPE Operation against a key holding the wrong kind of value")
	}
	val, found := hash[field]
	if !found {
		return nil
	}
	return val
}