Initial commit

feat: create basic server to manage google oauth, account, sessions, places, attributes and ratings.

internal/store/store.go

@@ -0,0 +1,82 @@
+package store
+
+import (
+	"encoding/json"
+	"os"
+	"sync"
+
+	"git.pengzhan.dev/noteplace-server/internal/models"
+)
+
+// DB represents the structure of the entire JSON database.
+type DB struct {
+	Users      map[string]models.User      `json:"users"`
+	Sessions   map[string]models.Session   `json:"sessions"`
+	Places     map[string]models.Place     `json:"places"`
+	Addresses  map[string]models.Address   `json:"addresses"`
+	Categories map[string]models.Category  `json:"categories"`
+	Attributes map[string]models.Attribute `json:"attributes"`
+	Ratings    map[string]models.Rating    `json:"ratings"`
+}
+
+// Store manages the in-memory data and provides safe access.
+type Store struct {
+	Mu   sync.RWMutex
+	path string
+	Data *DB
+}
+
+// New creates and initializes a new Store.
+func New(path string) (*Store, error) {
+	s := &Store{
+		path: path,
+		Data: &DB{},
+	}
+
+	if err := s.load(); err != nil {
+		return nil, err
+	}
+
+	return s, nil
+}
+
+// load reads the database file from disk into the Store.
+func (s *Store) load() error {
+	s.Mu.Lock()
+	defer s.Mu.Unlock()
+
+	file, err := os.ReadFile(s.path)
+	if err != nil {
+		// If the file doesn't exist, we can assume an empty database.
+		if os.IsNotExist(err) {
+			s.Data = &DB{
+				Users:      map[string]models.User{},
+				Sessions:   map[string]models.Session{},
+				Places:     map[string]models.Place{},
+				Addresses:  map[string]models.Address{},
+				Categories: map[string]models.Category{},
+				Attributes: map[string]models.Attribute{},
+				Ratings:    map[string]models.Rating{},
+			}
+			return nil
+		}
+		return err
+	}
+
+	return json.Unmarshal(file, s.Data)
+}
+
+// Save writes the current in-memory data back to the JSON file.
+func (s *Store) Save() error {
+	s.Mu.RLock()
+	defer s.Mu.RUnlock()
+
+	data, err := json.MarshalIndent(s.Data, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	return os.WriteFile(s.path, data, 0644)
+}
+
+// CreateSession adds a new session to the store.