services

2026-08-26 11:01:46 +03:00
parent 34a798d345
commit 4bd1512994
712 changed files with 538122 additions and 0 deletions
@@ -0,0 +1,109 @@
+package db
+
+import (
+	"context"
+	"github.com/gocraft/dbr/v2"
+)
+
+type Storage struct {
+	conn *dbr.Connection
+}
+
+func New(conn *dbr.Connection) *Storage {
+	s := Storage{conn}
+	s.init()
+	return &s
+}
+
+func (s *Storage) init() {
+	for _, q := range []string{
+		"CREATE TABLE IF NOT EXISTS users(id INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT, login VARCHAR(200) UNIQUE , password VARCHAR(200))",
+		"CREATE TABLE IF NOT EXISTS video(id INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT, user_id INTEGER, description VARCHAR(500), private BOOLEAN, link VARCHAR(400))",
+		"CREATE TABLE IF NOT EXISTS access(id INTEGER NOT NULL PRIMARY KEY AUTO_INCREMENT, user_id INTEGER, video_id INTEGER)",
+	} {
+		_, err := s.conn.Exec(q)
+		if err != nil {
+			panic(err)
+		}
+	}
+}
+
+func (s *Storage) InsertUser(ctx context.Context, user *User) error {
+	sess := s.conn.NewSession(nil)
+	_, err := sess.InsertInto("users").Columns("login", "password").Record(user).ExecContext(ctx)
+	return err
+}
+
+func (s *Storage) FindUser(ctx context.Context, login, password string) (*User, error) {
+	sess := s.conn.NewSession(nil)
+	user := new(User)
+	err := sess.Select("*").
+		From("users").
+		Where("login = ?", login).
+		Where("password = ?", password).
+		LoadOneContext(ctx, user)
+	if err != nil {
+		return nil, err
+	}
+	return user, err
+}
+
+func (s *Storage) AddVideo(ctx context.Context, v *Video) error {
+	sess := s.conn.NewSession(nil)
+	_, err := sess.InsertInto("video").
+		Columns("user_id", "description", "private", "link").
+		Record(v).ExecContext(ctx)
+
+	return err
+}
+
+func (s *Storage) ListVideo(ctx context.Context, limit int) (v []Video, err error) {
+	sess := s.conn.NewSession(nil)
+	_, err = sess.Select("*").
+		From("video").
+		OrderDesc("id").
+		Limit(uint64(limit)).
+		LoadContext(ctx, &v)
+	return
+}
+
+func (s *Storage) ListUserVideo(ctx context.Context, userId int64) (v []Video, err error) {
+	sess := s.conn.NewSession(nil)
+	_, err = sess.Select("*").
+		From("video").
+		Where("user_id = ?", userId).
+		OrderDesc("id").LoadContext(ctx, &v)
+	return
+}
+
+func (s *Storage) GetVideo(ctx context.Context, id interface{}) (*Video, error) {
+	sess := s.conn.NewSession(nil)
+	v := new(Video)
+	err := sess.Select("*").From("video").Where("id = ?", id).LoadOneContext(ctx, v)
+	return v, err
+}
+
+func (s *Storage) HaveAccess(ctx context.Context, id interface{}, userId int64) bool {
+	sess := s.conn.NewSession(nil)
+
+	var c int
+	err := sess.Select("count(*)").
+		From("access").
+		Where("user_id = ?", userId).
+		Where("video_id = ?", id).
+		LoadOneContext(ctx, &c)
+	if err != nil {
+		return false
+	}
+	return c > 0
+}
+
+func (s *Storage) AddAccess(ctx context.Context, id int, userId int64) error {
+	sess := s.conn.NewSession(nil)
+
+	_, err := sess.InsertInto("access").
+		Pair("video_id", id).
+		Pair("user_id", userId).
+		ExecContext(ctx)
+	return err
+}
@@ -0,0 +1,172 @@
+package db
+
+import (
+	"context"
+	"github.com/gocraft/dbr/v2"
+	_ "github.com/mattn/go-sqlite3"
+	"testing"
+)
+
+func setup() (*Storage, func()) {
+	conn, err := dbr.Open("sqlite3", ":memory:", nil)
+	if err != nil {
+		panic(err)
+	}
+	return New(conn), func() {
+		conn.Close()
+	}
+}
+
+func TestStorage_InsertUser(t *testing.T) {
+	db, teardown := setup()
+	defer teardown()
+	ctx := context.Background()
+	u := User{Login: "user", Password: "test"}
+	err := db.InsertUser(ctx, &u)
+	if err != nil {
+		t.Error("failed to insert user", err.Error())
+	}
+	if u.ID <= 0 {
+		t.Error("id should be positive")
+	}
+	err = db.InsertUser(ctx, &u)
+	if err == nil {
+		t.Error("should fail when inserting same user")
+	}
+}
+
+func TestStorage_FindUser(t *testing.T) {
+	db, teardown := setup()
+	defer teardown()
+	ctx := context.Background()
+	u := User{Login: "user", Password: "test"}
+	err := db.InsertUser(ctx, &u)
+	if err != nil {
+		t.Fatal("failed to insert user", err.Error())
+	}
+
+	u1, err := db.FindUser(ctx, "user", "test")
+	if err != nil {
+		t.Error("failed to retrieve user", err.Error())
+	}
+	if u1.Password != u.Password || u1.Login != u.Login {
+		t.Error("users should be equal")
+	}
+	u2, err := db.FindUser(ctx, "test", "test")
+	if err == nil {
+		t.Error("should fail because no user not found")
+	}
+	if u2 != nil {
+		t.Error("should be nil if user not found")
+	}
+}
+
+func TestStorage_AddVideo(t *testing.T) {
+	db, teardown := setup()
+	defer teardown()
+	ctx := context.Background()
+	v := Video{
+		UserID:      1,
+		Description: "Test",
+		Private:     false,
+		Link:        "test",
+	}
+	err := db.AddVideo(ctx, &v)
+	if err != nil {
+		t.Error("failed to insert video")
+	}
+
+	if v.ID <= 0 {
+		t.Error("id should be positive")
+	}
+}
+
+func TestStorage_ListVideo(t *testing.T) {
+	db, teardown := setup()
+	defer teardown()
+	ctx := context.Background()
+	v := Video{
+		UserID:      1,
+		Description: "Test",
+		Private:     false,
+		Link:        "test",
+	}
+	err := db.AddVideo(ctx, &v)
+	if err != nil {
+		t.Fatal("failed to insert video")
+	}
+
+	vds, err := db.ListVideo(ctx, 1)
+	if err != nil || len(vds) < 1 {
+		t.Error("failed to retrieve videos from db")
+	}
+
+	v.ID = vds[0].ID
+	if vds[0] != v {
+		t.Error("v != res[0]")
+	}
+}
+
+func TestStorage_ListUserVideo(t *testing.T) {
+	db, teardown := setup()
+	defer teardown()
+	ctx := context.Background()
+	for _, v := range []Video{
+		{UserID: 1, Description: "Test", Private: false, Link: "test"},
+		{UserID: 2, Description: "Test2", Private: false, Link: "test2"}} {
+		if err := db.AddVideo(ctx, &v); err != nil {
+			t.Fatal("failed to insert video:", err)
+		}
+
+	}
+
+	for _, u := range []int64{1, 2} {
+		vds, err := db.ListUserVideo(ctx, int64(u))
+		if err != nil || len(vds) != 1 {
+			t.Error("failed to retrieve videos from db for user: ", u)
+		}
+		if vds[0].UserID != u {
+			t.Errorf("video with wrong uid found. Expected %d, found %d", u, vds[0].UserID)
+		}
+	}
+}
+
+func TestStorage_GetVideo(t *testing.T) {
+	db, teardown := setup()
+	defer teardown()
+	ctx := context.Background()
+	v := Video{
+		UserID:      1,
+		Description: "Test",
+		Private:     false,
+		Link:        "test",
+	}
+	err := db.AddVideo(ctx, &v)
+	if err != nil {
+		t.Fatal("failed to insert video")
+	}
+
+	v2, err := db.GetVideo(ctx, v.ID)
+	if err != nil {
+		t.Errorf("failed to get video %v", err.Error())
+	}
+	if *v2 != v {
+		t.Errorf("videos dont match: expected %v, found %v", v, v2)
+	}
+}
+
+func TestStorage_AddAccess_HavAccess(t *testing.T) {
+	db, teardown := setup()
+	defer teardown()
+	ctx := context.Background()
+	if db.HaveAccess(ctx, 1, 2) {
+		t.Error("should not have access: empty table")
+	}
+	if err := db.AddAccess(ctx, 1, 2); err != nil {
+		t.Error("failed to add access", err)
+	}
+	if !db.HaveAccess(ctx, 1, 2) {
+		t.Error("should have access")
+	}
+
+}
@@ -0,0 +1,15 @@
+package db
+
+type User struct {
+	ID       int64
+	Login    string
+	Password string
+}
+
+type Video struct {
+	ID          int64
+	UserID      int64
+	Description string
+	Private     bool
+	Link        string
+}