package api

import (
	"encoding/json"
	"fmt"
	"log"
	"net/http"
	"os"
	"time"
)

type (
	JSONBase struct {
		Status    int       `json:"status"`
		Timestamp time.Time `json:"timestamp"`
	}

	JSONError struct {
		JSONBase
		Message string
	}
)

var (
	errLog = log.New(os.Stderr, log.Prefix(), log.Flags())
)

func internalServerErrorJSON(w http.ResponseWriter, v any) {
	w.WriteHeader(http.StatusInternalServerError)

	body, err := json.Marshal(JSONError{
		JSONBase: JSONBase{
			Status:    http.StatusInternalServerError,
			Timestamp: time.Now(),
		},
		Message: fmt.Sprintf("%v", v),
	})
	if err != nil {
		errLog.Println("[ERROR]", err)
	}
	w.Write([]byte(body))
}

func notFoundJSON(w http.ResponseWriter) {
	w.WriteHeader(http.StatusNotFound)

	body, err := json.Marshal(JSONError{
		JSONBase: JSONBase{
			Status:    http.StatusNotFound,
			Timestamp: time.Now(),
		},
		Message: "404 page not found",
	})
	if err != nil {
		errLog.Println("[ERROR]", err)
	}
	w.Write([]byte(body))
}