/*
 * Copyright 2009- ECMWF.
 *
 * This software is licensed under the terms of the Apache Licence version 2.0
 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
 * In applying this licence, ECMWF does not waive the privileges and immunities
 * granted to it by virtue of its status as an intergovernmental organisation
 * nor does it submit to any jurisdiction.
 */

#include "VLabelAttr.hpp"

#include "VAttributeType.hpp"
#include "VNode.hpp"
#include "ecflow/attribute/NodeAttr.hpp"

//================================
// VLabelAttrType
//================================

VLabelAttrType::VLabelAttrType() : VAttributeType("label") {
    dataCount_                      = 3;
    searchKeyToData_["label_name"]  = NameIndex;
    searchKeyToData_["label_value"] = ValueIndex;
    searchKeyToData_["name"]        = NameIndex;
    scanProc_                       = VLabelAttr::scan;
}

QString VLabelAttrType::toolTip(QStringList d) const {
    QString t = "<b>Type:</b> Label<br>";
    if (d.count() == dataCount_) {
        t += "<b>Name:</b> " + d[NameIndex] + "<br>";
        t += "<b>Value:</b> " + d[ValueIndex];
    }
    return t;
}

QString VLabelAttrType::definition(QStringList d) const {
    QString t = "label";
    if (d.count() == dataCount_) {
        t += " " + d[NameIndex] + " '" + d[ValueIndex] + "'";
    }
    return t;
}

void VLabelAttrType::encode(const Label& label, QStringList& data, bool firstLine) const {
    std::string val = label.new_value();
    if (val.empty() || val == " ") {
        val = label.value();
    }

    if (firstLine) {
        std::size_t pos = val.find("\n");
        if (pos != std::string::npos) {
            val.resize(pos);
        }
    }

    data << qName_ << QString::fromStdString(label.name()) << QString::fromStdString(val);
}

void VLabelAttrType::encode_empty(QStringList& data) const {
    data << qName_ << ""
         << "";
}

//=====================================================
//
// VLabelAttr
//
//=====================================================

VLabelAttr::VLabelAttr(VNode* parent, const Label& /*label*/, int index) : VAttribute(parent, index) {
}

int VLabelAttr::lineNum() const {
    if (parent_->node_) {
        const std::vector<Label>& v = parent_->node_->labels();
        std::string val             = v[index_].new_value();
        if (val.empty() || val == " ") {
            val = v[index_].value();
        }
        return std::count(val.begin(), val.end(), '\n') + 1;
    }

    return 1;
}

VAttributeType* VLabelAttr::type() const {
    static VAttributeType* atype = VAttributeType::find("label");
    return atype;
}

QStringList VLabelAttr::data(bool firstLine) const {
    static auto* atype = static_cast<VLabelAttrType*>(type());
    QStringList s;
    if (parent_->node_) {
        const std::vector<Label>& v = parent_->node_->labels();
        if (index_ < static_cast<int>(v.size())) {
            atype->encode(v[index_], s, firstLine);
        }

        // this can happen temporarily during update when:
        // -an attribute was already deleted
        // -the notification was emmitted from the update thread but
        //  it not yet reached the main thread
        // -here in the main thread we still have the old (incorrect) atribute number
        // as safety measure,in this case we encode an empty attribute. When the
        // notification arrives all the attributes of the given node will be rescanned
        // and we will have a correct state.
        else {
            atype->encode_empty(s);
        }
    }
    return s;
}

std::string VLabelAttr::strName() const {
    if (parent_->node_) {
        const std::vector<Label>& v = parent_->node_->labels();
        return v[index_].name();
    }
    return {};
}

void VLabelAttr::scan(VNode* vnode, std::vector<VAttribute*>& vec) {
    if (vnode->node_) {
        const std::vector<Label>& v = vnode->node_->labels();
        auto n                      = static_cast<int>(v.size());
        for (int i = 0; i < n; i++) {
            vec.push_back(new VLabelAttr(vnode, v[i], i));
        }
    }
}
