/*****************************************************************************************
 *                                                                                       *
 * OpenSpace                                                                             *
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 * Copyright (c) 2014-2020                                                               *
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 * software and associated documentation files (the "Software"), to deal in the Software *
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 * or substantial portions of the Software.                                              *
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 ****************************************************************************************/

#include <modules/base/timeframe/timeframeinterval.h>

#include <openspace/documentation/documentation.h>
#include <openspace/documentation/verifier.h>
#include <openspace/util/spicemanager.h>
#include <openspace/util/time.h>

namespace {
    constexpr const openspace::properties::Property::PropertyInfo HasStartInfo = {
        "HasStart",
        "Has Start",
        "If enabled, this TimeFrame will be inactive before the Start"
    };

    constexpr const openspace::properties::Property::PropertyInfo StartInfo = {
        "Start",
        "Start",
        "Specifies the time when this TimeFrame becomes active"
    };

    constexpr const openspace::properties::Property::PropertyInfo HasEndInfo = {
        "HasEnd",
        "Has End",
        "If enabled, this TimeFrame will be inactive after the End"
    };

    constexpr const openspace::properties::Property::PropertyInfo EndInfo = {
        "End",
        "End",
        "Specifies the time when this TimeFrame becomes inactive"
    };
} // namespace

namespace openspace {

documentation::Documentation TimeFrameInterval::Documentation() {
    using namespace openspace::documentation;
    return {
        "Time Frame Interval",
        "base_time_frame_interval",
        {
            {
                HasStartInfo.identifier,
                new BoolVerifier,
                Optional::Yes,
                HasStartInfo.description
            },
            {
                StartInfo.identifier,
                new OrVerifier({ new DoubleVerifier, new StringVerifier }),
                Optional::Yes,
                StartInfo.description
            },
            {
                HasEndInfo.identifier,
                new BoolVerifier,
                Optional::Yes,
                HasEndInfo.description
            },
            {
                EndInfo.identifier,
                new OrVerifier({ new DoubleVerifier, new StringVerifier }),
                Optional::Yes,
                EndInfo.description
            },
        }
    };
}

bool TimeFrameInterval::isActive(const Time& time) const {
    if (_hasStart && time.j2000Seconds() < _start ) {
        return false;
    }
    if (_hasEnd && time.j2000Seconds() >= _end ) {
        return false;
    }
    return true;
}

TimeFrameInterval::TimeFrameInterval()
    : _hasStart(HasStartInfo, false)
    , _start(StartInfo, 0, 0, 1E9)
    , _hasEnd(HasEndInfo, false)
    , _end(EndInfo, 0, 0, 1E9)
{
    addProperty(_hasStart);
    addProperty(_start);
    addProperty(_hasEnd);
    addProperty(_end);
}

TimeFrameInterval::TimeFrameInterval(const ghoul::Dictionary& dictionary)
    : _hasStart(HasStartInfo, false)
    , _start(StartInfo, 0, 0, 1E9)
    , _hasEnd(HasEndInfo, false)
    , _end(EndInfo, 0, 0, 1E9)
{
    addProperty(_hasStart);
    addProperty(_start);
    addProperty(_hasEnd);
    addProperty(_end);

    documentation::testSpecificationAndThrow(Documentation(),
                                             dictionary,
                                             "TimeFrameInterval");

    if (dictionary.hasValue<std::string>(StartInfo.identifier)) {
        _start = SpiceManager::ref().ephemerisTimeFromDate(
            dictionary.value<std::string>(StartInfo.identifier)
        );
        _hasStart = true;
    } else if (dictionary.hasValue<double>(StartInfo.identifier)) {
        _start = dictionary.value<double>(StartInfo.identifier);
        _hasStart = true;
    }

    if (dictionary.hasValue<std::string>(EndInfo.identifier)) {
        _end = SpiceManager::ref().ephemerisTimeFromDate(
            dictionary.value<std::string>(EndInfo.identifier)
        );
        _hasEnd = true;
    }
    else if (dictionary.hasValue<double>(EndInfo.identifier)) {
        _end = dictionary.value<double>(EndInfo.identifier);
        _hasEnd = true;
    }
}

} // namespace openspace