package mysql

import (
	"encoding/base64"
	"encoding/json"
	"strings"
	"testing"
	"time"

	core "git.yuntuo.hk/k2safe/orbit/model"
	"git.yuntuo.hk/k2safe/orbit/weave/instance"
)

func TestWorkflowQueryCursorRejectsAmbiguousJSON(t *testing.T) {
	ns := core.ID("11111111111111111111111111111111")
	at := time.Date(2026, 9, 18, 0, 0, 0, 0, time.UTC)
	raw, _ := json.Marshal(workflowCursor{1, ns, at, ns, "digest"})
	encode := func(s string) string { return base64.RawURLEncoding.EncodeToString([]byte(s)) }
	if _, err := decodeWorkflowCursor(encode(string(raw)), ns, instance.ListInput{}, "digest"); err != nil {
		t.Fatal(err)
	}
	for _, bad := range []string{`null`, `[]`, strings.Replace(string(raw), `"v":1`, `"v":1,"v":1`, 1), strings.Replace(string(raw), `"v":1`, `"V":1`, 1), strings.Replace(string(raw), `"v":1`, `"v":null`, 1), strings.Replace(string(raw), `"v":1`, `"v":2`, 1), strings.Replace(string(raw), `"f":"digest"`, `"f":"other"`, 1), strings.Replace(string(raw), `"v":1`, `"v":1,"x":0`, 1)} {
		if _, err := decodeWorkflowCursor(encode(bad), ns, instance.ListInput{}, "digest"); err == nil {
			t.Fatal("accepted ambiguous cursor", bad)
		}
	}
}