package auth

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

func (s *Service) RegisterRoutes(mux *http.ServeMux) {
	mux.HandleFunc("/api/v1/auth/google", s.handleGoogleLogin)
}

func (s *Service) handleGoogleLogin(w http.ResponseWriter, r *http.Request) {
	if r.Method != http.MethodPost {
		writeError(w, "method not allowed", http.StatusMethodNotAllowed)
		return
	}
	var req GoogleLoginRequest
	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
		writeError(w, "invalid request", http.StatusBadRequest)
		return
	}
	resp, err := s.HandleGoogleLogin(r.Context(), req)
	if err != nil {
		writeError(w, err.Error(), http.StatusUnauthorized)
		return
	}
	w.Header().Set("Content-Type", "application/json")
	json.NewEncoder(w).Encode(resp)
}

func writeError(w http.ResponseWriter, message string, code int) {
	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(code)
	json.NewEncoder(w).Encode(map[string]string{"error": message})
}