timeseriesutils.h

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#ifndef MOJA_MODULES_CBM_TIMESERIESUTILS_H_
#define MOJA_MODULES_CBM_TIMESERIESUTILS_H_
 
#include <moja/_core_exports.h>
#include <moja/dynamic.h>
#include <moja/exception.h>
 
#include "moja/modules/cbm/timeseries.h"
 
namespace moja {
namespace modules {
namespace cbm {
 
inline TimeSeries convertDynamicObjectToTimeSeries(const DynamicObject& s) {
    if (!(s.size() == 1 && s.begin()->first == "$time_series")) {
        throw InvalidArgumentException();
    }
    auto varStruct = s.begin()->second.extract<const DynamicObject>();
 
    int yr0 = varStruct["year_0"];
    int dataPerYr = varStruct["data_per_year"];
    int nYrs = varStruct["n_years"];
    bool subSame = varStruct["sub_same"];
 
    auto arr = varStruct["values"].extract<DynamicVector>();
    std::vector<boost::optional<double>> values;
    for (auto item : arr) {
        if (item.isEmpty()) {
            values.push_back(boost::optional<double>{});
        } else {
            values.push_back(item.convert<double>());
        }
    }
 
    TimeSeries timeSeries(yr0, dataPerYr, nYrs, subSame, values);
    return timeSeries;
}
 
inline TimeSeries convertDynamicToTimeSeries(const DynamicVar& value) {
    if (!value.isStruct()) {
        throw InvalidArgumentException();
    }
 
    auto& s = value.extract<const DynamicObject>();
    return convertDynamicObjectToTimeSeries(s);
}
 
inline DynamicVar convertTimeSeriesToDynamic(const TimeSeries& timeseries) {
 
    DynamicVector ts_values = DynamicVector();
    
    for (auto val : timeseries.raw()) {
        if (val)
            ts_values.push_back(val.get());
        else
            ts_values.push_back(DynamicVar());  // json NULL to allow for nodata value
    }
 
    DynamicObject ts_body = DynamicObject({
        { "year_0",         timeseries.yr0() },
        { "data_per_year",  timeseries.dataPerYr() },
        { "n_years",        timeseries.nYrs() },
        { "sub_same",       timeseries.subSame() },
        { "values",         ts_values }
    });
 
    DynamicObject ts_container = DynamicObject({
        { "$time_series", ts_body}
    });
    return ts_container;
}
 
} // namespace cbm
} // namespace modules
} // namespace moja
 
#endif // MOJA_MODULES_CBM_TIMESERIESUTILS_H_