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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/glean/bindings/Rate.h"
#include "jsapi.h"
#include "nsString.h"
#include "mozilla/Components.h"
#include "mozilla/ResultVariant.h"
#include "mozilla/glean/bindings/Common.h"
#include "mozilla/glean/bindings/ScalarGIFFTMap.h"
#include "mozilla/glean/fog_ffi_generated.h"
#include "nsIClassInfoImpl.h"
namespace mozilla::glean {
namespace impl {
void RateMetric::AddToNumerator(int32_t aAmount) const {
auto scalarId = ScalarIdForMetric(mId);
if (scalarId && aAmount >= 0) {
Telemetry::ScalarAdd(scalarId.extract(), u"numerator"_ns, aAmount);
}
fog_rate_add_to_numerator(mId, aAmount);
}
void RateMetric::AddToDenominator(int32_t aAmount) const {
auto scalarId = ScalarIdForMetric(mId);
if (scalarId && aAmount >= 0) {
Telemetry::ScalarAdd(scalarId.extract(), u"denominator"_ns, aAmount);
}
fog_rate_add_to_denominator(mId, aAmount);
}
Result<Maybe<std::pair<int32_t, int32_t>>, nsCString> RateMetric::TestGetValue(
const nsACString& aPingName) const {
nsCString err;
if (fog_rate_test_get_error(mId, &err)) {
return Err(err);
}
if (!fog_rate_test_has_value(mId, &aPingName)) {
return Maybe<std::pair<int32_t, int32_t>>();
}
int32_t num = 0;
int32_t den = 0;
fog_rate_test_get_value(mId, &aPingName, &num, &den);
return Some(std::make_pair(num, den));
}
} // namespace impl
NS_IMPL_CLASSINFO(GleanRate, nullptr, 0, {0})
NS_IMPL_ISUPPORTS_CI(GleanRate, nsIGleanRate)
NS_IMETHODIMP
GleanRate::AddToNumerator(int32_t aAmount) {
mRate.AddToNumerator(aAmount);
return NS_OK;
}
NS_IMETHODIMP
GleanRate::AddToDenominator(int32_t aAmount) {
mRate.AddToDenominator(aAmount);
return NS_OK;
}
NS_IMETHODIMP
GleanRate::TestGetValue(const nsACString& aPingName, JSContext* aCx,
JS::MutableHandle<JS::Value> aResult) {
auto result = mRate.TestGetValue(aPingName);
if (result.isErr()) {
aResult.set(JS::UndefinedValue());
LogToBrowserConsole(nsIScriptError::errorFlag,
NS_ConvertUTF8toUTF16(result.unwrapErr()));
return NS_ERROR_LOSS_OF_SIGNIFICANT_DATA;
}
auto optresult = result.unwrap();
if (optresult.isNothing()) {
aResult.set(JS::UndefinedValue());
} else {
// Build return value of the form: { numerator: n, denominator: d }
JS::Rooted<JSObject*> root(aCx, JS_NewPlainObject(aCx));
if (!root) {
return NS_ERROR_FAILURE;
}
auto pair = optresult.extract();
int32_t num = pair.first;
int32_t den = pair.second;
if (!JS_DefineProperty(aCx, root, "numerator", static_cast<double>(num),
JSPROP_ENUMERATE)) {
return NS_ERROR_FAILURE;
}
if (!JS_DefineProperty(aCx, root, "denominator", static_cast<double>(den),
JSPROP_ENUMERATE)) {
return NS_ERROR_FAILURE;
}
aResult.setObject(*root);
}
return NS_OK;
}
} // namespace mozilla::glean
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