/****************************************************************************/
// Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.org/sumo
// Copyright (C) 2012-2019 German Aerospace Center (DLR) and others.
// This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v2.0
// which accompanies this distribution, and is available at
// http://www.eclipse.org/legal/epl-v20.html
// SPDX-License-Identifier: EPL-2.0
/****************************************************************************/
/// @file    NWWriter_DlrNavteq.cpp
/// @author  Jakob Erdmann
/// @author  Michael Behrisch
/// @date    26.10.2012
/// @version $Id$
///
// Exporter writing networks using DlrNavteq (Elmar) format
/****************************************************************************/


// ===========================================================================
// included modules
// ===========================================================================
#include <config.h>
#include <algorithm>
#include <ctime>
#include <cmath>
#include <utils/common/MsgHandler.h>
#include <netbuild/NBEdge.h>
#include <netbuild/NBEdgeCont.h>
#include <netbuild/NBNode.h>
#include <netbuild/NBNodeCont.h>
#include <netbuild/NBNetBuilder.h>
#include <utils/common/ToString.h>
#include <utils/common/IDSupplier.h>
#include <utils/common/StringUtils.h>
#include <utils/common/StringTokenizer.h>
#include <utils/options/OptionsCont.h>
#include <utils/iodevices/OutputDevice.h>
#include <utils/geom/GeoConvHelper.h>
#include "NWFrame.h"
#include "NWWriter_DlrNavteq.h"


// ---------------------------------------------------------------------------
// static members
// ---------------------------------------------------------------------------
const std::string NWWriter_DlrNavteq::UNDEFINED("-1");

// ---------------------------------------------------------------------------
// static methods
// ---------------------------------------------------------------------------
void
NWWriter_DlrNavteq::writeNetwork(const OptionsCont& oc, NBNetBuilder& nb) {
    // check whether a matsim-file shall be generated
    if (!oc.isSet("dlr-navteq-output")) {
        return;
    }
    std::map<NBEdge*, std::string> internalNodes;
    writeNodesUnsplitted(oc, nb.getNodeCont(), nb.getEdgeCont(), internalNodes);
    writeLinksUnsplitted(oc, nb.getEdgeCont(), internalNodes);
    writeTrafficSignals(oc, nb.getNodeCont());
    writeProhibitedManoeuvres(oc, nb.getNodeCont(), nb.getEdgeCont());
    writeConnectedLanes(oc, nb.getNodeCont());
}


void NWWriter_DlrNavteq::writeHeader(OutputDevice& device, const OptionsCont& oc) {
    device << "# Format matches Extraction version: V6.5 \n";
    std::stringstream tmp;
    oc.writeConfiguration(tmp, true, false, false);
    tmp.seekg(std::ios_base::beg);
    std::string line;
    while (!tmp.eof()) {
        std::getline(tmp, line);
        device << "# " << line << "\n";
    }
    device << "#\n";
}

void
NWWriter_DlrNavteq::writeNodesUnsplitted(const OptionsCont& oc, NBNodeCont& nc, NBEdgeCont& ec, std::map<NBEdge*, std::string>& internalNodes) {
    // For "real" nodes we simply use the node id.
    // For internal nodes (geometry vectors describing edge geometry in the parlance of this format)
    // we use the id of the edge and do not bother with
    // compression (each direction gets its own internal node).
    OutputDevice& device = OutputDevice::getDevice(oc.getString("dlr-navteq-output") + "_nodes_unsplitted.txt");
    writeHeader(device, oc);
    const GeoConvHelper& gch = GeoConvHelper::getFinal();
    const bool haveGeo = gch.usingGeoProjection();
    const double geoScale = pow(10.0f, haveGeo ? 5 : 2); // see NIImporter_DlrNavteq::GEO_SCALE
    device.setPrecision(oc.getInt("dlr-navteq.precision"));
    if (!haveGeo) {
        WRITE_WARNING("DlrNavteq node data will be written in (floating point) cartesian coordinates");
    }
    // write format specifier
    device << "# NODE_ID\tIS_BETWEEN_NODE\tamount_of_geocoordinates\tx1\ty1\t[x2 y2  ... xn  yn]\n";
    // write header
    Boundary boundary = gch.getConvBoundary();
    Position min(boundary.xmin(), boundary.ymin());
    Position max(boundary.xmax(), boundary.ymax());
    gch.cartesian2geo(min);
    min.mul(geoScale);
    gch.cartesian2geo(max);
    max.mul(geoScale);
    int multinodes = 0;
    for (std::map<std::string, NBEdge*>::const_iterator i = ec.begin(); i != ec.end(); ++i) {
        if ((*i).second->getGeometry().size() > 2) {
            multinodes++;
        }
    }
    device << "# [xmin_region] " << min.x() << "\n";
    device << "# [xmax_region] " << max.x() << "\n";
    device << "# [ymin_region] " << min.y() << "\n";
    device << "# [ymax_region] " << max.y() << "\n";
    device << "# [elements_multinode] " << multinodes << "\n";
    device << "# [elements_normalnode] " << nc.size() << "\n";
    device << "# [xmin] " << min.x() << "\n";
    device << "# [xmax] " << max.x() << "\n";
    device << "# [ymin] " << min.y() << "\n";
    device << "# [ymax] " << max.y() << "\n";
    // write normal nodes
    for (std::map<std::string, NBNode*>::const_iterator i = nc.begin(); i != nc.end(); ++i) {
        NBNode* n = (*i).second;
        Position pos = n->getPosition();
        gch.cartesian2geo(pos);
        pos.mul(geoScale);
        device << n->getID() << "\t0\t1\t" << pos.x() << "\t" << pos.y() << "\n";
    }
    // write "internal" nodes
    std::vector<std::string> avoid;
    std::set<std::string> reservedNodeIDs;
    const bool numericalIDs = oc.getBool("numerical-ids");
    if (oc.isSet("reserved-ids")) {
        NBHelpers::loadPrefixedIDsFomFile(oc.getString("reserved-ids"), "node:", reservedNodeIDs); // backward compatibility
        NBHelpers::loadPrefixedIDsFomFile(oc.getString("reserved-ids"), "junction:", reservedNodeIDs); // selection format
    }
    if (numericalIDs) {
        avoid = nc.getAllNames();
        std::vector<std::string> avoid2 = ec.getAllNames();
        avoid.insert(avoid.end(), avoid2.begin(), avoid2.end());
        avoid.insert(avoid.end(), reservedNodeIDs.begin(), reservedNodeIDs.end());
    }
    IDSupplier idSupplier("", avoid);
    for (std::map<std::string, NBEdge*>::const_iterator i = ec.begin(); i != ec.end(); ++i) {
        NBEdge* e = (*i).second;
        PositionVector geom = e->getGeometry();
        if (geom.size() > 2) {
            // the import NIImporter_DlrNavteq checks for the presence of a
            // negated edge id to determine spread type. We may need to do some
            // shifting to make this consistent
            const bool hasOppositeID = ec.getOppositeByID(e->getID()) != nullptr;
            if (e->getLaneSpreadFunction() == LANESPREAD_RIGHT && !hasOppositeID) {
                // need to write center-line geometry instead
                try {
                    geom.move2side(e->getTotalWidth() / 2);
                } catch (InvalidArgument& exception) {
                    WRITE_WARNING("Could not reconstruct shape for edge:'" + e->getID() + "' (" + exception.what() + ").");
                }
            } else if (e->getLaneSpreadFunction() == LANESPREAD_CENTER && hasOppositeID) {
                // need to write left-border geometry instead
                try {
                    geom.move2side(-e->getTotalWidth() / 2);
                } catch (InvalidArgument& exception) {
                    WRITE_WARNING("Could not reconstruct shape for edge:'" + e->getID() + "' (" + exception.what() + ").");
                }
            }

            std::string internalNodeID = e->getID();
            if (internalNodeID == UNDEFINED
                    || (nc.retrieve(internalNodeID) != nullptr)
                    || reservedNodeIDs.count(internalNodeID) > 0
               ) {
                // need to invent a new name to avoid clashing with the id of a 'real' node or a reserved name
                if (numericalIDs) {
                    internalNodeID = idSupplier.getNext();
                } else {
                    internalNodeID += "_geometry";
                }
            }
            internalNodes[e] = internalNodeID;
            device << internalNodeID << "\t1\t" << geom.size() - 2;
            for (int ii = 1; ii < (int)geom.size() - 1; ++ii) {
                Position pos = geom[(int)ii];
                gch.cartesian2geo(pos);
                pos.mul(geoScale);
                device << "\t" << pos.x() << "\t" << pos.y();
            }
            device << "\n";
        }
    }
    device.close();
}


void
NWWriter_DlrNavteq::writeLinksUnsplitted(const OptionsCont& oc, NBEdgeCont& ec, std::map<NBEdge*, std::string>& internalNodes) {
    std::map<const std::string, std::string> nameIDs;
    OutputDevice& device = OutputDevice::getDevice(oc.getString("dlr-navteq-output") + "_links_unsplitted.txt");
    writeHeader(device, oc);
    // write format specifier
    device << "# LINK_ID\tNODE_ID_FROM\tNODE_ID_TO\tBETWEEN_NODE_ID\tLENGTH\tVEHICLE_TYPE\tFORM_OF_WAY\tBRUNNEL_TYPE\tFUNCTIONAL_ROAD_CLASS\tSPEED_CATEGORY\tNUMBER_OF_LANES\tSPEED_LIMIT\tSPEED_RESTRICTION\tNAME_ID1_REGIONAL\tNAME_ID2_LOCAL\tHOUSENUMBERS_RIGHT\tHOUSENUMBERS_LEFT\tZIP_CODE\tAREA_ID\tSUBAREA_ID\tTHROUGH_TRAFFIC\tSPECIAL_RESTRICTIONS\tEXTENDED_NUMBER_OF_LANES\tISRAMP\tCONNECTION\n";
    // write edges
    for (std::map<std::string, NBEdge*>::const_iterator i = ec.begin(); i != ec.end(); ++i) {
        NBEdge* e = (*i).second;
        const int kph = speedInKph(e->getSpeed());
        const std::string& betweenNodeID = (e->getGeometry().size() > 2) ? internalNodes[e] : UNDEFINED;
        std::string nameID = UNDEFINED;
        if (oc.getBool("output.street-names")) {
            const std::string& name = i->second->getStreetName();
            if (name != "") {
                if (nameIDs.count(name) == 0) {
                    nameIDs[name] = toString(nameIDs.size());
                }
                nameID = nameIDs[name];
            }
        }
        device << e->getID() << "\t"
               << e->getFromNode()->getID() << "\t"
               << e->getToNode()->getID() << "\t"
               << betweenNodeID << "\t"
               << getGraphLength(e) << "\t"
               << getAllowedTypes(e->getPermissions()) << "\t"
               << getFormOfWay(e) << "\t"
               << getBrunnelType(e) << "\t"
               << getRoadClass(e) << "\t"
               << getSpeedCategory(kph) << "\t"
               << getNavteqLaneCode(e->getNumLanes()) << "\t"
               << getSpeedCategoryUpperBound(kph) << "\t"
               << kph << "\t"
               << UNDEFINED << "\t" // NAME_ID1_REGIONAL XXX
               << nameID << "\t" // NAME_ID2_LOCAL
               << UNDEFINED << "\t" // housenumbers_right
               << UNDEFINED << "\t" // housenumbers_left
               << getSinglePostalCode(e->getParameter("postal_code", UNDEFINED), e->getID()) << "\t" // ZIP_CODE
               << UNDEFINED << "\t" // AREA_ID
               << UNDEFINED << "\t" // SUBAREA_ID
               << "1\t" // through_traffic (allowed)
               << UNDEFINED << "\t" // special_restrictions
               << UNDEFINED << "\t" // extended_number_of_lanes
               << UNDEFINED << "\t" // isRamp
               << "0\t" // connection (between nodes always in order)
               << "\n";
    }
    if (oc.getBool("output.street-names")) {
        OutputDevice& namesDevice = OutputDevice::getDevice(oc.getString("dlr-navteq-output") + "_names.txt");
        writeHeader(namesDevice, oc);
        // write format specifier
        namesDevice << "# NAME_ID\tPERMANENT_ID_INFO\tName\n";
        namesDevice << "# [elements] " << nameIDs.size() << "\n";
        for (std::map<const std::string, std::string>::const_iterator i = nameIDs.begin(); i != nameIDs.end(); ++i) {
            namesDevice
                    << i->second << "\t"
                    << 0 << "\t"
                    << i->first << "\n";
        }
        namesDevice.close();
    }
    device.close();
}


std::string
NWWriter_DlrNavteq::getAllowedTypes(SVCPermissions permissions) {
    if (permissions == SVCAll) {
        return "100000000000";
    }
    std::ostringstream oss;
    oss << "0";
    oss << ((permissions & SVC_PASSENGER)              > 0 ? 1 : 0);
    oss << ((permissions & SVC_PASSENGER)              > 0 ? 1 : 0); // residential
    oss << ((permissions & SVC_HOV)                    > 0 ? 1 : 0);
    oss << ((permissions & SVC_EMERGENCY)              > 0 ? 1 : 0);
    oss << ((permissions & SVC_TAXI)                   > 0 ? 1 : 0);
    oss << ((permissions & (SVC_BUS | SVC_COACH))      > 0 ? 1 : 0);
    oss << ((permissions & SVC_DELIVERY)               > 0 ? 1 : 0);
    oss << ((permissions & (SVC_TRUCK | SVC_TRAILER))  > 0 ? 1 : 0);
    oss << ((permissions & SVC_MOTORCYCLE)             > 0 ? 1 : 0);
    oss << ((permissions & SVC_BICYCLE)                > 0 ? 1 : 0);
    oss << ((permissions & SVC_PEDESTRIAN)             > 0 ? 1 : 0);
    return oss.str();
}


int
NWWriter_DlrNavteq::getRoadClass(NBEdge* edge) {
    // quoting the navteq manual:
    // As a general rule, Functional Road Class assignments have no direct
    // correlation with other road attributes like speed, controlled access, route type, etc.
    // if the network is based on OSM, we can use the highway types for determining FRC
    std::string type = edge->getTypeID();
    if (StringUtils::startsWith(type, "highway.")) {
        type = type.substr(8);
    }
    if (StringUtils::startsWith(type, "motorway")) {
        return 0;
    } else if (StringUtils::startsWith(type, "trunk")) {
        return 1;
    } else if (StringUtils::startsWith(type, "primary")) {
        return 1;
    } else if (StringUtils::startsWith(type, "secondary")) {
        return 2;
    } else if (StringUtils::startsWith(type, "tertiary")) {
        return 3;
    } else if (type == "unclassified") {
        return 3;
    } else if (type == "living_street" || type == "residential" || type == "road" || type == "service" || type == "track" || type == "cycleway" || type == "path" || type == "footway") {
        return 4;
    }
    // as a fallback we do a simple speed / lane-count mapping anyway
    // the resulting functional road class layers probably won't be connected as required
    const int kph = speedInKph(edge->getSpeed());
    if ((kph) > 100) {
        return 0;
    }
    if ((kph) > 70) {
        return 1;
    }
    if ((kph) > 50) {
        return (edge->getNumLanes() > 1 ? 2 : 3);
    }
    if ((kph) > 30) {
        return 3;
    }
    return 4;
}


int
NWWriter_DlrNavteq::getSpeedCategory(int kph) {
    if ((kph) > 130) {
        return 1;
    }
    if ((kph) > 100) {
        return 2;
    }
    if ((kph) > 90) {
        return 3;
    }
    if ((kph) > 70) {
        return 4;
    }
    if ((kph) > 50) {
        return 5;
    }
    if ((kph) > 30) {
        return 6;
    }
    if ((kph) > 10) {
        return 7;
    }
    return 8;
}


int
NWWriter_DlrNavteq::getSpeedCategoryUpperBound(int kph) {
    if ((kph) > 130) {
        return 131;
    }
    if ((kph) > 100) {
        return 130;
    }
    if ((kph) > 90) {
        return 100;
    }
    if ((kph) > 70) {
        return 90;
    }
    if ((kph) > 50) {
        return 70;
    }
    if ((kph) > 30) {
        return 50;
    }
    if ((kph) > 10) {
        return 30;
    }
    return 10;
}


int
NWWriter_DlrNavteq::getNavteqLaneCode(const int numLanes) {
    const int code = (numLanes == 1 ? 1 :
                      (numLanes < 4 ?  2 : 3));
    return numLanes * 10 + code;
}


int
NWWriter_DlrNavteq::getBrunnelType(NBEdge* edge) {
    if (edge->knowsParameter("bridge")) {
        return 1;
    } else if (edge->knowsParameter("tunnel")) {
        return 4;
    } else if (edge->getTypeID() == "route.ferry") {
        return 10;
    }
    return -1; // UNDEFINED
}


int
NWWriter_DlrNavteq::getFormOfWay(NBEdge* edge) {
    if (edge->getPermissions() == SVC_PEDESTRIAN) {
        return 15;
    } else if (edge->getJunctionPriority(edge->getToNode()) == NBEdge::ROUNDABOUT) {
        return 4;
    } else if (edge->getTypeID() == "highway.service") {
        return 14;
    } else if (edge->getTypeID().find("_link") != std::string::npos) {
        return 10;
    }
    return 3; // speed category 1-8;
}


double
NWWriter_DlrNavteq::getGraphLength(NBEdge* edge) {
    PositionVector geom = edge->getGeometry();
    geom.push_back_noDoublePos(edge->getToNode()->getPosition());
    geom.push_front_noDoublePos(edge->getFromNode()->getPosition());
    return geom.length();
}


std::string
NWWriter_DlrNavteq::getSinglePostalCode(const std::string& zipCode, const std::string edgeID) {
    // might be multiple codes
    if (zipCode.find_first_of(" ,;") != std::string::npos) {
        WRITE_WARNING("ambiguous zip code '" + zipCode + "' for edge '" + edgeID + "'. (using first value)");
        StringTokenizer st(zipCode, " ,;", true);
        std::vector<std::string> ret = st.getVector();
        return ret[0];
    } else if (zipCode.size() > 16) {
        WRITE_WARNING("long zip code '" + zipCode + "' for edge '" + edgeID + "'");
    }
    return zipCode;
}

void
NWWriter_DlrNavteq::writeTrafficSignals(const OptionsCont& oc, NBNodeCont& nc) {
    OutputDevice& device = OutputDevice::getDevice(oc.getString("dlr-navteq-output") + "_traffic_signals.txt");
    writeHeader(device, oc);
    const GeoConvHelper& gch = GeoConvHelper::getFinal();
    const bool haveGeo = gch.usingGeoProjection();
    const double geoScale = pow(10.0f, haveGeo ? 5 : 2); // see NIImporter_DlrNavteq::GEO_SCALE
    device.setPrecision(oc.getInt("dlr-navteq.precision"));
    // write format specifier
    device << "#Traffic signal related to LINK_ID and NODE_ID with location relative to driving direction.\n#column format like pointcollection.\n#DESCRIPTION->LOCATION: 1-rechts von LINK; 2-links von LINK; 3-oberhalb LINK -1-keineAngabe\n#RELATREC_ID\tPOICOL_TYPE\tDESCRIPTION\tLONGITUDE\tLATITUDE\tLINK_ID\n";
    // write record for every edge incoming to a tls controlled node
    for (std::map<std::string, NBNode*>::const_iterator i = nc.begin(); i != nc.end(); ++i) {
        NBNode* n = (*i).second;
        if (n->isTLControlled()) {
            Position pos = n->getPosition();
            gch.cartesian2geo(pos);
            pos.mul(geoScale);
            const EdgeVector& incoming = n->getIncomingEdges();
            for (EdgeVector::const_iterator it = incoming.begin(); it != incoming.end(); ++it) {
                NBEdge* e = *it;
                device << e->getID() << "\t"
                       << "12\t" // POICOL_TYPE
                       << "LSA;NODEIDS#" << n->getID() << "#;LOCATION#-1#;\t"
                       << pos.x() << "\t"
                       << pos.y() << "\t"
                       << e->getID() << "\n";
            }
        }
    }
    device.close();
}


void
NWWriter_DlrNavteq::writeProhibitedManoeuvres(const OptionsCont& oc, const NBNodeCont& nc, const NBEdgeCont& ec) {
    OutputDevice& device = OutputDevice::getDevice(oc.getString("dlr-navteq-output") + "_prohibited_manoeuvres.txt");
    writeHeader(device, oc);
    // need to invent id for relation
    std::set<std::string> reservedRelIDs;
    if (oc.isSet("reserved-ids")) {
        NBHelpers::loadPrefixedIDsFomFile(oc.getString("reserved-ids"), "rel:", reservedRelIDs);
    }
    std::vector<std::string> avoid = ec.getAllNames(); // already used for tls RELATREC_ID
    avoid.insert(avoid.end(), reservedRelIDs.begin(), reservedRelIDs.end());
    IDSupplier idSupplier("", avoid); // @note: use a global relRecIDsupplier if this is used more often
    // write format specifier
    device << "#No driving allowed from ID1 to ID2 or the complete chain from ID1 to IDn\n";
    device << "#RELATREC_ID\tPERMANENT_ID_INFO\tVALIDITY_PERIOD\tTHROUGH_TRAFFIC\tVEHICLE_TYPE\tNAVTEQ_LINK_ID1\t[NAVTEQ_LINK_ID2 ...]\n";
    // write record for every pair of incoming/outgoing edge that are not connected despite having common permissions
    for (std::map<std::string, NBNode*>::const_iterator i = nc.begin(); i != nc.end(); ++i) {
        NBNode* n = (*i).second;
        const EdgeVector& incoming = n->getIncomingEdges();
        const EdgeVector& outgoing = n->getOutgoingEdges();
        for (EdgeVector::const_iterator j = incoming.begin(); j != incoming.end(); ++j) {
            NBEdge* inEdge = *j;
            const SVCPermissions inPerm = inEdge->getPermissions();
            for (EdgeVector::const_iterator k = outgoing.begin(); k != outgoing.end(); ++k) {
                NBEdge* outEdge = *k;
                const SVCPermissions outPerm = outEdge->getPermissions();
                const SVCPermissions commonPerm = inPerm & outPerm;
                if (commonPerm != 0 && commonPerm != SVC_PEDESTRIAN && !inEdge->isConnectedTo(outEdge)) {
                    device
                            << idSupplier.getNext() << "\t"
                            << 1 << "\t" // permanent id
                            << UNDEFINED << "\t"
                            << 1 << "\t"
                            << getAllowedTypes(SVCAll) << "\t"
                            << inEdge->getID() << "\t" << outEdge->getID() << "\n";
                }
            }
        }
    }
    device.close();
}


void
NWWriter_DlrNavteq::writeConnectedLanes(const OptionsCont& oc, NBNodeCont& nc) {
    OutputDevice& device = OutputDevice::getDevice(oc.getString("dlr-navteq-output") + "_connected_lanes.txt");
    writeHeader(device, oc);
    // write format specifier
    device << "#Lane connections related to LINK-IDs and NODE-ID.\n";
    device << "#column format like pointcollection.\n";
    device << "#NODE-ID\tVEHICLE-TYPE\tFROM_LANE\tTO_LANE\tTHROUGH_TRAFFIC\tLINK_IDs[2..*]\n";
    // write record for every connection
    for (std::map<std::string, NBNode*>::const_iterator i = nc.begin(); i != nc.end(); ++i) {
        NBNode* n = (*i).second;
        const EdgeVector& incoming = n->getIncomingEdges();
        for (EdgeVector::const_iterator j = incoming.begin(); j != incoming.end(); ++j) {
            NBEdge* from = *j;
            const SVCPermissions fromPerm = from->getPermissions();
            const std::vector<NBEdge::Connection>& connections = from->getConnections();
            for (std::vector<NBEdge::Connection>::const_iterator it_c = connections.begin(); it_c != connections.end(); it_c++) {
                const NBEdge::Connection& c = *it_c;
                device
                        << n->getID() << "\t"
                        << getAllowedTypes(fromPerm & c.toEdge->getPermissions()) << "\t"
                        << c.fromLane + 1 << "\t" // one-based
                        << c.toLane + 1 << "\t" // one-based
                        << 1 << "\t" // no information regarding permissibility of through traffic
                        << from->getID() << "\t"
                        << c.toEdge->getID() << "\t"
                        << "\n";
            }
        }
    }
    device.close();
}

/****************************************************************************/

