/*
  Copyright 2010-2012 Grégory Soutadé

  This file is part of KissCount.

  KissCount is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  KissCount is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with KissCount.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <QMessageBox>
#include <QInputDialog>

#include "SearchPanel.hpp"

SearchPanel::SearchPanel(KissCount* kiss, wxUI *parent, bool lowResolution) : 
    KissPanel(kiss, parent, lowResolution), _operations(0)
{
    DEFAULT_FONT(font);
    std::vector<Account>::iterator accountIt;
    std::vector<Category>::iterator categoryIt;
    int i;
    User* user = _kiss->GetUser();

    QVBoxLayout *vbox = new QVBoxLayout;
    QVBoxLayout *vbox2 = new QVBoxLayout;
    QHBoxLayout *hbox = new QHBoxLayout;

    _icons[KissPanel::LOW_RES_ICON] = SEARCH_LOW_ICON;
    _icons[KissPanel::HIGH_RES_ICON] = SEARCH_ICON;

    setLayout(vbox);
  
    _searchButton = new QPushButton(_("Search"));

    connect(_searchButton, SIGNAL(clicked()), this, SLOT(OnButtonSearch()));

    _banner = new SearchBanner(kiss, this, this, OnEnter);

    vbox->addWidget(_banner);
    vbox->addWidget(_searchButton);

    _grid = new GridAccount(_kiss, this, false, false, true);
    _grid->setSizeAdjustPolicy(QAbstractScrollArea::AdjustToContents);

    _changeAccountButton = new QPushButton(_("Change account"));
    _changeCategoryButton = new QPushButton(_("Change category"));
    _changeTagButton = new QPushButton(_("Change tag"));
    _renameButton = new QPushButton(_("Rename"));

    connect(_changeAccountButton, SIGNAL(clicked()), this, SLOT(OnButtonChangeAccount()));
    connect(_changeCategoryButton, SIGNAL(clicked()), this, SLOT(OnButtonChangeCategory()));
    connect(_changeTagButton, SIGNAL(clicked()), this, SLOT(OnButtonChangeTag()));
    connect(_renameButton, SIGNAL(clicked()), this, SLOT(OnButtonRename()));
    
    _categories = new QString[user->GetCategoriesNumber()] ;
    _categoriesValues = new int[user->GetCategoriesNumber()] ;
    for(i=0, categoryIt = user->_categories.begin(); 
        categoryIt != user->_categories.end(); 
        categoryIt++, i++)
    {
        _categoriesIndexes[categoryIt->id] = i;
        _categories[i] = _(categoryIt->name.toStdString().c_str()) ;
    }

    _costRepartitionBanner = new CostRepartitionBanner(_kiss, this, _categories);

    vbox2->addWidget(_changeAccountButton);
    vbox2->addWidget(_changeCategoryButton);
    vbox2->addWidget(_changeTagButton);
    vbox2->addWidget(_renameButton);

    hbox->addStretch();
    hbox->addLayout(vbox2);
    hbox->addStretch();
    hbox->addWidget(_grid);
    hbox->addStretch();
    hbox->addWidget(_costRepartitionBanner, 2);

    vbox->addLayout(hbox, 2);
}

SearchPanel::~SearchPanel()
{
}

KissPanel* SearchPanel::CreatePanel()
{
    return new SearchPanel(_kiss, _wxUI, _lowResolution);
}

QString SearchPanel::GetToolTip()
{
    return _("Search");
}

void SearchPanel::UpdateCostRepartition()
{
    int i;
    User* user = _kiss->GetUser();
    double total=0.0;
    std::vector<Operation>::iterator it;
    Account account;
    Operation op;

    _costRepartitionBanner->Reset();

    for (i=0; i<user->GetCategoriesNumber(); i++)
        _categoriesValues[i] = 0.0;

    for(it=_operations->begin(); it!=_operations->end(); it++)
    {	
    	if (it->meta) continue;

	op = *it;

	account = user->GetAccount(op.account);

	if (account.blocked && op.transfert && op.amount > 0)
	    op.amount = -op.amount;
	
	if (op.amount >= 0) continue;

	_categoriesValues[_categoriesIndexes[op.category]] -= op.amount;
	total -= op.amount;
    }

    _costRepartitionBanner->UpdateCosts(_categoriesValues, total);
}

void SearchPanel::OnEnter(void* caller)
{
    SearchPanel* _this = (SearchPanel*) caller;
    
    _this->OnButtonSearch();
}

void SearchPanel::OnButtonSearch()
{
    _operations = _banner->Search();

    if (!_operations) return;

    if (_operations->size() > 1)
        QMessageBox::information(0, _("KissCount"), QString::number(_operations->size()) + _(" entries found"));
    else if (_operations->size() == 1)
        QMessageBox::information(0, _("KissCount"), _("1 entry found"));
    else
    {
        QMessageBox::information(0, _("KissCount"), _("No entry found"));
        return;
    }

    _kiss->setOverrideCursor(QCursor(Qt::WaitCursor));
    _wxUI->setEnabled(false);
    _wxUI->repaint();

    _grid->LoadOperations(_operations, 0, 0);

    _wxUI->setEnabled(true);
    _kiss->setOverrideCursor(QCursor(Qt::ArrowCursor));

    UpdateCostRepartition();

    _wxUI->layout();
}

static void ChangeAccount(Operation* op, void** params)
{
    int* account = (int*) params[0];

    op->account = *account;
}

void SearchPanel::OnButtonChangeAccount()
{
    int i, a;
    std::vector<int> rows;
    User* user = _kiss->GetUser();
    QStringList accounts;
    std::vector<Operation>::iterator it;
    int account;
    void * params[] = {&account};
    QString res;

    if (!_operations) return;

    _grid->GetSelectedOperations(&rows);

    accounts << _("None");
    for(i=0; i < user->GetAccountsNumber(); i++)
	accounts <<  user->_accounts[i].name;

    res =  QInputDialog::getItem(0, "KissCount", _("Choose a new account"), accounts, 0, false);

    if (!res.size()) return ;
    a = (res.length()) ? accounts.indexOf(res) : 0;
    account =  (a) ? user->_accounts[a-1].id : 0;

    _grid->MassUpdate(rows, true, ChangeAccount, params);

    UpdateCostRepartition();

    NeedReload();
}

static void ChangeCategory(Operation* op, void** params)
{
    int* category = (int*) params[0];

    op->category = *category;
}

void SearchPanel::OnButtonChangeCategory()
{
    int i, a;
    std::vector<int> rows;
    User* user = _kiss->GetUser();
    QStringList categories;
    std::vector<Operation>::iterator it;
    QString res;
    int category;
    void * params[] = {&category};

    if (!_operations) return;

    _grid->GetSelectedOperations(&rows);

    categories << _("None");
    for(i=0; i < user->GetCategoriesNumber(); i++)
	categories <<  _(user->_categories[i].name.toStdString().c_str());

    res =  QInputDialog::getItem(0, "KissCount", _("Choose a new category"), categories, 0, false);
    
    if (res.length())
    {
	a = categories.indexOf(res);
	category = user->_categories[a-1].id ;
    }
    else
    {
	category = 0;
    }

    _grid->MassUpdate(rows, true, ChangeCategory, params);

    UpdateCostRepartition();

    NeedReload();
}

static void ChangeTag(Operation* op, void** params)
{
    int* tag = (int*) params[0];

    op->tag = *tag;
}

void SearchPanel::OnButtonChangeTag()
{
    int i, a;
    std::vector<int> rows;
    User* user = _kiss->GetUser();
    QStringList tags;
    std::vector<Operation>::iterator it;
    QString res;
    int tag;
    void * params[] = {&tag};

    if (!_operations) return;

    _grid->GetSelectedOperations(&rows);

    tags << _("None");
    for(i=0; i < user->GetTagsNumber(); i++)
	tags <<  _(user->_tags[i].name.toStdString().c_str());

    res =  QInputDialog::getItem(0, "KissCount", _("Choose a new tag"), tags, 0, false);
    
    if (res.length())
    {
	a = tags.indexOf(res);
	tag = user->_tags[a].id ;
    }
    else
    {
	tag = 0;
    }

    _grid->MassUpdate(rows, true, ChangeTag, params);

    UpdateCostRepartition();

    NeedReload();
}

static void ChangeName(Operation* op, void** params)
{
    QString* description = (QString*) params[0];

    op->description = *description;
}

void SearchPanel::OnButtonRename()
{
    std::vector<int> rows;
    std::vector<Operation>::iterator it;
    QString description;
    void * params[] = {&description};

    if (!_operations) return;

    _grid->GetSelectedOperations(&rows);

    description = QInputDialog::getText(this, "", _("Enter a new description"));
    if (!description.length()) return;

    _grid->MassUpdate(rows, false, ChangeName, params);

    UpdateCostRepartition();

    NeedReload();
}

void SearchPanel::OnShow()
{
    _wxUI->setWindowTitle(_kiss->GetUser()->_name + " - " + _("Search"));
}

void SearchPanel::OnOperationModified()
{
    NeedReload();
}