first working login and editing of file. bugg is för rendering with tiptap

2026-04-10 19:56:21 +02:00
parent 41dc1d9988
commit 05b773c14c
14 changed files with 9459 additions and 24 deletions
--- a/backend/internal/db/db.go
+++ b/backend/internal/db/db.go
@@ -0,0 +1,148 @@
+package db
+
+import (
+	"database/sql"
+	"errors"
+	"strings"
+	"time"
+
+	_ "modernc.org/sqlite"
+)
+
+var ErrUserNotFound = errors.New("user not found")
+var ErrUserExists = errors.New("username already exists")
+
+// User represents a local account stored in SQLite.
+type User struct {
+	ID        int64
+	Username  string
+	PassHash  string
+	Role      string
+	CreatedAt time.Time
+}
+
+// DB wraps the SQLite connection.
+type DB struct {
+	sql *sql.DB
+}
+
+// New opens (or creates) the SQLite database at path and runs migrations.
+func New(path string) (*DB, error) {
+	sqldb, err := sql.Open("sqlite", path+"?_journal=WAL&_timeout=5000")
+	if err != nil {
+		return nil, err
+	}
+	d := &DB{sql: sqldb}
+	if err := d.init(); err != nil {
+		sqldb.Close()
+		return nil, err
+	}
+	return d, nil
+}
+
+func (d *DB) Close() error {
+	return d.sql.Close()
+}
+
+func (d *DB) init() error {
+	_, err := d.sql.Exec(`
+		CREATE TABLE IF NOT EXISTS users (
+			id         INTEGER PRIMARY KEY AUTOINCREMENT,
+			username   TEXT NOT NULL UNIQUE,
+			pass_hash  TEXT NOT NULL,
+			role       TEXT NOT NULL DEFAULT 'user',
+			created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+		)
+	`)
+	return err
+}
+
+// CreateUser inserts a new user. Returns ErrUserExists if the username is taken.
+func (d *DB) CreateUser(username, passHash, role string) error {
+	_, err := d.sql.Exec(
+		`INSERT INTO users (username, pass_hash, role) VALUES (?, ?, ?)`,
+		username, passHash, role,
+	)
+	if err != nil && strings.Contains(err.Error(), "UNIQUE constraint failed") {
+		return ErrUserExists
+	}
+	return err
+}
+
+// GetUser fetches a single user by username.
+func (d *DB) GetUser(username string) (*User, error) {
+	row := d.sql.QueryRow(
+		`SELECT id, username, pass_hash, role, created_at FROM users WHERE username = ?`,
+		username,
+	)
+	u := &User{}
+	var createdAt string
+	err := row.Scan(&u.ID, &u.Username, &u.PassHash, &u.Role, &createdAt)
+	if errors.Is(err, sql.ErrNoRows) {
+		return nil, ErrUserNotFound
+	}
+	if err != nil {
+		return nil, err
+	}
+	u.CreatedAt, _ = time.Parse("2006-01-02 15:04:05", createdAt)
+	return u, nil
+}
+
+// ListUsers returns all users ordered by id.
+func (d *DB) ListUsers() ([]*User, error) {
+	rows, err := d.sql.Query(
+		`SELECT id, username, role, created_at FROM users ORDER BY id`,
+	)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var users []*User
+	for rows.Next() {
+		u := &User{}
+		var createdAt string
+		if err := rows.Scan(&u.ID, &u.Username, &u.Role, &createdAt); err != nil {
+			return nil, err
+		}
+		u.CreatedAt, _ = time.Parse("2006-01-02 15:04:05", createdAt)
+		users = append(users, u)
+	}
+	return users, rows.Err()
+}
+
+// DeleteUser removes a user. Returns ErrUserNotFound if they don't exist.
+func (d *DB) DeleteUser(username string) error {
+	res, err := d.sql.Exec(`DELETE FROM users WHERE username = ?`, username)
+	if err != nil {
+		return err
+	}
+	n, _ := res.RowsAffected()
+	if n == 0 {
+		return ErrUserNotFound
+	}
+	return nil
+}
+
+// UpdatePassword replaces the stored hash for a user.
+func (d *DB) UpdatePassword(username, passHash string) error {
+	res, err := d.sql.Exec(
+		`UPDATE users SET pass_hash = ? WHERE username = ?`,
+		passHash, username,
+	)
+	if err != nil {
+		return err
+	}
+	n, _ := res.RowsAffected()
+	if n == 0 {
+		return ErrUserNotFound
+	}
+	return nil
+}
+
+// UserCount returns the total number of local accounts.
+func (d *DB) UserCount() (int, error) {
+	var n int
+	err := d.sql.QueryRow(`SELECT COUNT(*) FROM users`).Scan(&n)
+	return n, err
+}