package handlers

import (
	"encoding/json"
	"net/http"
)

func JSON(w http.ResponseWriter, status int, data interface{}) {
	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(status)
	json.NewEncoder(w).Encode(data)
}

func Error(w http.ResponseWriter, status int, msg string) {
	JSON(w, status, map[string]string{"error": msg})
}

func Decode(r *http.Request, v interface{}) error {
	return json.NewDecoder(r.Body).Decode(v)
}

func valueToString(v interface{}) (string, error) {
	switch val := v.(type) {
	case string:
		return val, nil
	case map[string]interface{}, []interface{}:
		b, err := json.Marshal(val)
		if err != nil {
			return "", err
		}
		return string(b), nil
	default:
		b, err := json.Marshal(val)
		if err != nil {
			return "", err
		}
		return string(b), nil
	}
}