feat(webui): bootstrap session handling and login process

pkg/database/sessions.go

@@ -0,0 +1,69 @@
+package database
+
+import (
+	"database/sql"
+	"errors"
+	"fmt"
+	"time"
+
+	"git.adyxax.org/adyxax/tfstated/pkg/model"
+	"go.n16f.net/uuid"
+)
+
+func (db *DB) CreateSession(account *model.Account) (string, error) {
+	var sessionId uuid.UUID
+	if err := sessionId.Generate(uuid.V4); err != nil {
+		return "", fmt.Errorf("failed to generate session id: %w", err)
+	}
+	if _, err := db.Exec(
+		`INSERT INTO sessions(id, account_id, data)
+		   VALUES (?, ?, ?);`,
+		sessionId.String(),
+		account.Id,
+		"",
+	); err != nil {
+		return "", fmt.Errorf("failed insert new session in database: %w", err)
+	}
+	return sessionId.String(), nil
+}
+
+func (db *DB) LoadSessionById(id string) (*model.Session, error) {
+	session := model.Session{
+		Id: id,
+	}
+	var (
+		created int64
+		updated int64
+	)
+	err := db.QueryRow(
+		`SELECT account_id,
+                created,
+                updated,
+                data
+           FROM sessions
+           WHERE id = ?;`,
+		id,
+	).Scan(&session.AccountId,
+		&created,
+		&updated,
+		&session.Data,
+	)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, fmt.Errorf("failed to load session by id %s: %w", id, err)
+	}
+	session.Created = time.Unix(created, 0)
+	session.Updated = time.Unix(updated, 0)
+	return &session, nil
+}
+
+func (db *DB) TouchSession(sessionId string) error {
+	now := time.Now().UTC()
+	_, err := db.Exec(`UPDATE sessions SET updated = ? WHERE id = ?`, now.Unix(), sessionId)
+	if err != nil {
+		return fmt.Errorf("failed to touch updated for session %s: %w", sessionId, err)
+	}
+	return nil
+}