package lottery

import (
	"context"
	"testing"

	"github.com/perfect-panel/server/pkg/constant"
)

// TestRequestMeta_EmptyWhenCtxUnset asserts requestMeta returns empty strings
// when neither typed context key is populated (unit tests, non-admin paths).
func TestRequestMeta_EmptyWhenCtxUnset(t *testing.T) {
	ip, ua := requestMeta(context.Background())
	if ip != "" || ua != "" {
		t.Fatalf("expected empty, got ip=%q ua=%q", ip, ua)
	}
}

// TestRequestMeta_ReadsTypedKeys asserts requestMeta picks up the values
// AdminMetaMiddleware pins onto ctx via the typed CtxKey constants.
func TestRequestMeta_ReadsTypedKeys(t *testing.T) {
	ctx := context.Background()
	ctx = context.WithValue(ctx, constant.CtxKeyIP, "10.99.99.7")
	ctx = context.WithValue(ctx, constant.CtxKeyUserAgent, "qa-audit-probe")

	ip, ua := requestMeta(ctx)
	if ip != "10.99.99.7" {
		t.Fatalf("ip = %q, want %q", ip, "10.99.99.7")
	}
	if ua != "qa-audit-probe" {
		t.Fatalf("ua = %q, want %q", ua, "qa-audit-probe")
	}
}

// TestRequestMeta_IgnoresBareStringKeys guards against the F2 root cause:
// pre-fix, the writer used bare-string keys "ip" / "user_agent" which never
// collided with anyone's typed reader — so audit rows always saw empty
// strings. The test proves the reader now IGNORES bare-string writes: only
// the typed CtxKey path counts.
func TestRequestMeta_IgnoresBareStringKeys(t *testing.T) {
	ctx := context.Background()
	//nolint:staticcheck // intentional bare-string key to prove reader ignores it
	ctx = context.WithValue(ctx, "ip", "should-be-ignored")
	//nolint:staticcheck // intentional bare-string key to prove reader ignores it
	ctx = context.WithValue(ctx, "user_agent", "should-be-ignored")

	ip, ua := requestMeta(ctx)
	if ip != "" || ua != "" {
		t.Fatalf("bare-string keys must be ignored; got ip=%q ua=%q", ip, ua)
	}
}