package store

import (
	"encoding/json"
	"os"

	"git.pengzhan.dev/noteplace-server/internal/models"
)

// GetUserByGoogleID finds a user by their Google ID.
func (s *Store) GetUserByGoogleID(googleID string) (models.User, bool) {
	s.Mu.RLock()
	defer s.Mu.RUnlock()
	for _, u := range s.Data.Users {
		if u.GoogleID == googleID {
			return u, true
		}
	}
	return models.User{}, false
}

// GetUserByID finds a user by their internal ID.
func (s *Store) GetUserByID(id string) (models.User, bool) {
	s.Mu.RLock()
	defer s.Mu.RUnlock()
	u, ok := s.Data.Users[id]
	return u, ok
}

// CreateUser adds a new user to the store.
func (s *Store) CreateUser(user models.User) error {
	s.Mu.Lock()
	defer s.Mu.Unlock()
	s.Data.Users[user.ID] = user
	return s.save()
}

// save is an unexported helper to save the database state.
func (s *Store) save() error {
	data, err := json.MarshalIndent(s.Data, "", "  ")
	if err != nil {
		return err
	}
	return os.WriteFile(s.path, data, 0644)
}