#include "storychainspresent.h"

#include <QSplitter>
#include <QVBoxLayout>

using namespace Components;
using namespace Parse;
using namespace Parse::Result;

StoryChainsPresent::StoryChainsPresent(Parse::Result::ParseCore *core, QWidget *parent)
    : QWidget(parent), core_ins(core), model_base(new QStandardItemModel(this)),
      tree_view(new QTreeView(this)), details_show(new QPlainTextEdit(this))
{
    tree_view->setModel(model_base);
    tree_view->setHeaderHidden(true);

    auto layoutx = new QVBoxLayout(this);
    layoutx->setMargin(0);
    auto split = new QSplitter(Qt::Vertical, this);
    layoutx->addWidget(split);
    split->addWidget(tree_view);
    split->addWidget(details_show);
    details_show->setReadOnly(true);

    connect(tree_view,  &QTreeView::clicked,   this,    &StoryChainsPresent::action_details_show);
}

void StoryChainsPresent::refresh()
{
    model_base->clear();
    auto list = core_ins->allStoryChains();
    for(auto &chain : list){
        auto chain_node = new QStandardItem(static_cast<NamedNode*>(chain)->name());
        chain_node->setEditable(false);
        model_base->appendRow(chain_node);

        auto children = chain->children();
        for(auto &point : children){
            if(point->typeValue() == NODE_STORYPOINT){
                auto point_node = new QStandardItem(static_cast<NamedNode*>(point)->name());
                point_node->setEditable(false);
                chain_node->appendRow(point_node);
            }
        }
    }
}

void StoryChainsPresent::action_details_show(const QModelIndex &curr)
{
    if(!curr.isValid())
        return;

    details_show->clear();
    auto item = model_base->itemFromIndex(curr);
    if(item->parent() == nullptr){
        auto node = core_ins->queryStoryChain(item->text());

        auto children = node.first()->children();
        for(auto &it : children){
            if(it->typeValue() != NODE_STORYPOINT){
                details_show->appendPlainText(it->toString());
            }
        }
    }
    else{
        auto node = core_ins->queryStoryChain(item->parent()->text());
        auto point = core_ins->queryStoryPoint(node.first(), item->text());

        auto children = point.first()->children();
        for(auto &it : children){
            details_show->appendPlainText(it->toString());
        }
    }
}