package mw

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

// RespondJSON writes a JSON response with the given status code.
// The Content-Type is always set to application/json, overriding any
// middleware-set value, to ensure consistent JSON error responses.
func RespondJSON(w http.ResponseWriter, status int, data any) {
	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(status)
	if err := json.NewEncoder(w).Encode(data); err != nil {
		log.Printf("Failed to encode JSON response: %v", err)
	}
}

// RespondError sends a JSON error response with the given status code and message.
// It preserves the application/json Content-Type set by middleware.
func RespondError(w http.ResponseWriter, status int, msg string) {
	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(status)
	if err := json.NewEncoder(w).Encode(map[string]string{"error": msg}); err != nil {
		log.Printf("Failed to encode error response: %v", err)
	}
}