Added initial support of channel cpm from earn channel api.

Telegram/SourceFiles/api/api_statistics.cpp

@@ -773,7 +773,19 @@ rpl::producer<rpl::no_value, QString> EarnStatistics::request() {
 
 			requestBoosts({}, [=](Data::EarnHistorySlice &&slice) {
 				_data.firstHistorySlice = std::move(slice);
-				consumer.put_done();
+
+				api().request(
+					MTPchannels_GetFullChannel(channel()->inputChannel)
+				).done([=](const MTPmessages_ChatFull &result) {
+					result.data().vfull_chat().match([&](
+							const MTPDchannelFull &d) {
+						_data.minCpm = d.vsponsored_min_cpm().value_or(-1);
+					}, [](const auto &) {
+					});
+					consumer.put_done();
+				}).fail([=](const MTP::Error &error) {
+					consumer.put_error_copy(error.type());
+				}).send();
 			});
 		}).fail([=](const MTP::Error &error) {
 			consumer.put_error_copy(error.type());

Telegram/SourceFiles/data/data_statistics.h

@@ -202,6 +202,7 @@ struct EarnStatistics final {
 	EarnInt availableBalance = 0;
 	EarnInt overallRevenue = 0;
 	float64 usdRate = 0.;
+	int minCpm = -1;
 
 	EarnHistorySlice firstHistorySlice;
 };

Telegram/SourceFiles/info/channel_statistics/earn/info_earn_inner_widget.cpp

@@ -49,20 +49,20 @@ namespace {
 
 using EarnInt = Data::EarnInt;
 
+constexpr auto kMultiplier = EarnInt(1000000000);
 constexpr auto kMinorPartLength = 9;
 constexpr auto kZero = QChar('0');
 constexpr auto kDot = QChar('.');
 
 [[nodiscard]] QString MajorPart(EarnInt value) {
 	const auto string = QString::number(value);
-	return (string.size() < kMinorPartLength)
-		? QString(kZero)
-		: string.mid(0, kMinorPartLength);
+	const auto diff = int(string.size()) - kMinorPartLength;
+	return (diff <= 0) ? QString(kZero) : string.mid(0, diff);
 }
 
 [[nodiscard]] QString MinorPart(EarnInt value) {
 	if (!value) {
-		return QString(kDot) + kZero;
+		return QString(kDot) + kZero + kZero;
 	}
 	const auto string = QString::number(value);
 	const auto diff = int(string.size()) - kMinorPartLength;
@@ -86,7 +86,6 @@ constexpr auto kDot = QChar('.');
 
 [[nodiscard]] QString ToUsd(EarnInt value, float64 rate) {
 	constexpr auto kApproximately = QChar(0x2248);
-	constexpr auto kMultiplier = EarnInt(1000000000);
 	const auto multiplier = EarnInt(rate * kMultiplier);
 	const auto result = (value * multiplier) / kMultiplier;
 	return QString(kApproximately)
@@ -857,7 +856,7 @@ void InnerWidget::fill() {
 		const auto right = Ui::CreateChild<Ui::FlatLabel>(
 			line,
 			st::defaultFlatLabel);
-		addEmojiToMajor(right, kMaxCPM);
+		addEmojiToMajor(right, kMaxCPM * kMultiplier);
 		const auto slider = Ui::CreateChild<Ui::MediaSlider>(
 			line,
 			st::settingsScale);
@@ -913,7 +912,7 @@ void InnerWidget::fill() {
 				? std::make_optional(activeColor)
 				: std::nullopt);
 		};
-		const auto current = kMaxCPM / 2;
+		const auto current = std::max(0, data.minCpm);
 		slider->setPseudoDiscrete(
 			kMaxCPM + 1,
 			[=](int index) { return index; },