chore: rearrange audit logging code into enterprise folder (#3741)

coderd/audit/request.go

@@ -0,0 +1,52 @@
+package audit
+
+import (
+	"context"
+	"net/http"
+
+	chimw "github.com/go-chi/chi/v5/middleware"
+	"github.com/google/uuid"
+
+	"cdr.dev/slog"
+	"github.com/coder/coder/coderd/database"
+)
+
+type RequestParams struct {
+	Audit Auditor
+	Log   slog.Logger
+
+	Action       database.AuditAction
+	ResourceType database.ResourceType
+	Actor        uuid.UUID
+}
+
+type Request[T Auditable] struct {
+	params *RequestParams
+
+	Old T
+	New T
+}
+
+// InitRequest initializes an audit log for a request. It returns a function
+// that should be deferred, causing the audit log to be committed when the
+// handler returns.
+func InitRequest[T Auditable](w http.ResponseWriter, p *RequestParams) (*Request[T], func()) {
+	sw, ok := w.(chimw.WrapResponseWriter)
+	if !ok {
+		panic("dev error: http.ResponseWriter is not chimw.WrapResponseWriter")
+	}
+
+	req := &Request[T]{
+		params: p,
+	}
+
+	return req, func() {
+		ctx := context.Background()
+		code := sw.Status()
+
+		err := p.Audit.Export(ctx, database.AuditLog{StatusCode: int32(code)})
+		if err != nil {
+			p.Log.Error(ctx, "export audit log", slog.Error(err))
+		}
+	}
+}