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#include <mbgl/style/expression/number_format.hpp>
#include <mbgl/style/conversion_impl.hpp>
#include <mbgl/util/platform.hpp>
namespace mbgl {
namespace style {
namespace expression {
const char localeKey[] = "locale";
const char currencyKey[] = "currency";
const char minFractionDigitsKey[] = "min-fraction-digits";
const char maxFractionDigitsKey[] = "max-fraction-digits";
NumberFormat::NumberFormat(std::unique_ptr<Expression> number_,
std::unique_ptr<Expression> locale_,
std::unique_ptr<Expression> currency_,
std::unique_ptr<Expression> minFractionDigits_,
std::unique_ptr<Expression> maxFractionDigits_)
: Expression(Kind::NumberFormat, type::String),
number(std::move(number_)),
locale(std::move(locale_)),
currency(std::move(currency_)),
minFractionDigits(std::move(minFractionDigits_)),
maxFractionDigits(std::move(maxFractionDigits_))
{}
NumberFormat::~NumberFormat() = default;
EvaluationResult NumberFormat::evaluate(const EvaluationContext& params) const {
auto numberResult = number->evaluate(params);
if (!numberResult) {
return numberResult.error();
}
double evaluatedNumber = numberResult->get<double>();
std::string evaluatedLocale;
if (locale) {
auto localeResult = locale->evaluate(params);
if (!localeResult) {
return localeResult.error();
}
evaluatedLocale = toString(*localeResult);
}
std::string evaluatedCurrency;
if (currency) {
auto currencyResult = currency->evaluate(params);
if (!currencyResult) {
return currencyResult.error();
}
evaluatedCurrency = toString(*currencyResult);
}
uint8_t evaluatedMinFractionDigits = 0;
if (minFractionDigits) {
auto minDigitsResult = minFractionDigits->evaluate(params);
if (!minDigitsResult) {
return minDigitsResult.error();
}
evaluatedMinFractionDigits = minDigitsResult->get<double>();
}
uint8_t evaluatedMaxFractionDigits = 3;
if (maxFractionDigits) {
auto maxDigitsResult = maxFractionDigits->evaluate(params);
if (!maxDigitsResult) {
return maxDigitsResult.error();
}
evaluatedMaxFractionDigits = maxDigitsResult->get<double>();
}
std::string output;
output = platform::formatNumber(evaluatedNumber,
evaluatedLocale,
evaluatedCurrency,
evaluatedMinFractionDigits,
evaluatedMaxFractionDigits);
return output;
}
void NumberFormat::eachChild(const std::function<void(const Expression&)>& visit) const {
visit(*number);
if (locale) visit(*locale);
if (currency) visit(*currency);
if (minFractionDigits) visit(*minFractionDigits);
if (maxFractionDigits) visit(*maxFractionDigits);
}
bool NumberFormat::operator==(const Expression& e) const {
if (e.getKind() == Kind::NumberFormat) {
auto rhs = static_cast<const NumberFormat*>(&e);
if ((locale && (!rhs->locale || *locale != *rhs->locale)) ||
(!locale && rhs->locale)) {
return false;
}
if ((currency && (!rhs->currency || *currency != *rhs->currency)) ||
(!currency && rhs->currency)) {
return false;
}
if ((minFractionDigits && (!rhs->minFractionDigits || *minFractionDigits != *rhs->minFractionDigits)) ||
(!minFractionDigits && rhs->minFractionDigits)) {
return false;
}
if ((maxFractionDigits && (!rhs->maxFractionDigits || *maxFractionDigits != *rhs->maxFractionDigits)) ||
(!maxFractionDigits && rhs->maxFractionDigits)) {
return false;
}
return *number == *rhs->number;
}
return false;
}
std::vector<optional<Value>> NumberFormat::possibleOutputs() const {
return { nullopt };
}
using namespace mbgl::style::conversion;
ParseResult NumberFormat::parse(const Convertible& value, ParsingContext& ctx) {
std::size_t length = arrayLength(value);
if (length != 3) {
ctx.error("Expected two arguments, but found " + util::toString(length) + " instead.");
return ParseResult();
}
ParseResult numberResult = ctx.parse(arrayMember(value, 1), 1, {type::Number});
if (!numberResult) {
ctx.error("Failed to parse the number.");
return ParseResult();
}
type::Type type = (*numberResult)->getType();
if (!type.is<type::NumberType>()) {
ctx.error("Expected argument of type number, but found " + toString(type) + " instead.");
return ParseResult();
}
auto options = arrayMember(value, 2);
if (!isObject(options)) {
ctx.error("Number-format options argument must be an object.");
return ParseResult();
}
const optional<Convertible> localeOption = objectMember(options, localeKey);
ParseResult localeResult;
if (localeOption) {
localeResult = ctx.parse(*localeOption, 1, {type::String});
if (!localeResult) {
ctx.error("Number-format locale parsing failed.");
return ParseResult();
}
}
const optional<Convertible> currencyOption = objectMember(options, currencyKey);
ParseResult currencyResult;
if (currencyOption) {
currencyResult = ctx.parse(*currencyOption, 1, {type::String});
if (!currencyResult) {
ctx.error("Number-format currency parsing failed.");
return ParseResult();
}
}
const optional<Convertible> minFractionDigitsOption = objectMember(options, minFractionDigitsKey);
ParseResult minFractionDigitsResult;
if (minFractionDigitsOption) {
minFractionDigitsResult = ctx.parse(*minFractionDigitsOption, 1, {type::Number});
if (!minFractionDigitsResult) {
ctx.error("Number-format min-fraction-digits parsing failed.");
return ParseResult();
}
}
const optional<Convertible> maxFractionDigitsOption = objectMember(options, maxFractionDigitsKey);
ParseResult maxFractionDigitsResult;
if (maxFractionDigitsOption) {
maxFractionDigitsResult = ctx.parse(*maxFractionDigitsOption, 1, {type::Number});
if (!maxFractionDigitsResult) {
ctx.error("Number-format max-fraction-digits parsing failed.");
return ParseResult();
}
}
return ParseResult(std::make_unique<NumberFormat>(std::move(*numberResult),
localeResult ? std::move(*localeResult) : nullptr,
currencyResult? std::move(*currencyResult) : nullptr,
minFractionDigitsResult ? std::move(*minFractionDigitsResult) : nullptr,
maxFractionDigitsResult ? std::move(*maxFractionDigitsResult) : nullptr));
}
mbgl::Value NumberFormat::serialize() const {
std::vector<mbgl::Value> serialized{{ getOperator() }};
serialized.emplace_back(number->serialize());
std::unordered_map<std::string, mbgl::Value> options;
if (locale) {
options[localeKey] = locale->serialize();
}
if (currency) {
options[currencyKey] = currency->serialize();
}
if (minFractionDigits) {
options[minFractionDigitsKey] = minFractionDigits->serialize();
}
if (maxFractionDigits) {
options[maxFractionDigitsKey] = maxFractionDigits->serialize();
}
serialized.emplace_back(options);
return serialized;
}
} // namespace expression
} // namespace style
} // namespace mbgl
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