Initial AI service skeleton

internal/migrate/migrate.go

@@ -0,0 +1,38 @@
+package migrate
+
+import (
+	"context"
+	"embed"
+	"fmt"
+	"sort"
+	"strings"
+
+	"ai-service/internal/store"
+)
+
+//go:embed sql/*.up.sql
+var migrationFiles embed.FS
+
+func Up(ctx context.Context, db *store.Store) error {
+	entries, err := migrationFiles.ReadDir("sql")
+	if err != nil {
+		return err
+	}
+	var names []string
+	for _, entry := range entries {
+		if !entry.IsDir() && strings.HasSuffix(entry.Name(), ".up.sql") {
+			names = append(names, entry.Name())
+		}
+	}
+	sort.Strings(names)
+	for _, name := range names {
+		body, err := migrationFiles.ReadFile("sql/" + name)
+		if err != nil {
+			return err
+		}
+		if err := db.Exec(ctx, string(body)); err != nil {
+			return fmt.Errorf("%s: %w", name, err)
+		}
+	}
+	return nil
+}