//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright            : (C) 2008 by Eran Ifrah
// file name            : templateclassdlg.cpp
//
// -------------------------------------------------------------------------
// A
//              _____           _      _     _ _
//             /  __ \         | |    | |   (_) |
//             | /  \/ ___   __| | ___| |    _| |_ ___
//             | |    / _ \ / _  |/ _ \ |   | | __/ _ )
//             | \__/\ (_) | (_| |  __/ |___| | ||  __/
//              \____/\___/ \__,_|\___\_____/_|\__\___|
//
//                                                  F i l e
//
//    This program 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 2 of the License, or
//    (at your option) any later version.
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

#include "templateclassdlg.h"

#include "ColoursAndFontsManager.h"
#include "VirtualDirectorySelectorDlg.h"
#include "editor_config.h"
#include "event_notifier.h"
#include "imanager.h"
#include "project.h"
#include "snipwiz.h"
#include "swGlobals.h"
#include "swStringDb.h"
#include "workspace.h"

#include <wx/dirdlg.h>
#include <wx/filefn.h>
#include <wx/msgdlg.h>
#include <wx/textbuf.h>
#include <wx/textfile.h>

static const wxString swHeader = wxT("header");
static const wxString swSource = wxT("source");
static const wxString swPhClass = wxT("%CLASS%");

TemplateClassDlg::TemplateClassDlg(wxWindow* parent, SnipWiz* plugin, IManager* manager)
    : TemplateClassBaseDlg(parent)
    , m_plugin(plugin)
    , m_pManager(manager)
{
    Initialize();
    GetSizer()->Fit(this);
}

void TemplateClassDlg::Initialize()
{
    LexerConf::Ptr_t cppLexer = ColoursAndFontsManager::Get().GetLexer("c++");
    if(cppLexer) {
        cppLexer->Apply(m_textCtrlHeader, true);
        cppLexer->Apply(m_textCtrlImpl, true);
    }

    GetStringDb()->Load(m_configPath + defaultTmplFile);

    wxArrayString templates;
    GetStringDb()->GetAllSets(templates);
    for(wxUint32 i = 0; i < templates.GetCount(); i++) {
        m_comboxTemplates->AppendString(templates[i]);
        m_comboxCurrentTemplate->AppendString(templates[i]);
    }
    if(templates.GetCount()) {
        m_comboxTemplates->Select(0);
        wxString set = m_comboxTemplates->GetValue();
        m_textCtrlHeader->SetValue(GetStringDb()->GetString(set, swHeader));
        m_textCtrlImpl->SetValue(GetStringDb()->GetString(set, swSource));
        m_comboxCurrentTemplate->Select(0);
    }
    TreeItemInfo item = m_pManager->GetSelectedTreeItemInfo(TreeFileView);
    if(item.m_item.IsOk() && item.m_itemType == ProjectItem::TypeVirtualDirectory) {
        m_virtualFolder = VirtualDirectorySelectorDlg::DoGetPath(m_pManager->GetWorkspaceTree(), item.m_item, false);
        m_projectPath = item.m_fileName.GetPath(wxPATH_GET_VOLUME | wxPATH_GET_SEPARATOR);
    }
    m_textCtrlVD->SetValue(m_virtualFolder);

    if(clCxxWorkspaceST::Get()->IsOpen()) {
        wxString project, vd;
        project = m_virtualFolder.BeforeFirst(wxT(':'));
        vd = m_virtualFolder.AfterFirst(wxT(':'));

        ProjectPtr proj = clCxxWorkspaceST::Get()->GetProject(project);
        if(proj) {
            m_projectPath = proj->GetBestPathForVD(vd);
        }
    }

    if(m_virtualFolder.IsEmpty() == false) {
        m_staticProjectTreeFolder->SetForegroundColour(wxColour(0, 128, 0));
    }
    m_textCtrlFilePath->SetValue(m_projectPath);
    m_textCtrlClassName->SetFocus();
}

void TemplateClassDlg::OnClassNameEntered(wxCommandEvent& event)
{
    wxUnusedVar(event);
    wxString buffer = m_textCtrlClassName->GetValue();
    if(buffer.IsEmpty()) {
        m_textCtrlHeaderFile->SetValue(wxT(""));
        m_textCtrlCppFile->SetValue(wxT(""));
        return;
    } else {
        m_textCtrlHeaderFile->SetValue(buffer + ".hpp");
        m_textCtrlCppFile->SetValue(buffer + ".cpp");
    }
}

void TemplateClassDlg::OnBrowseVD(wxCommandEvent& event)
{
    wxUnusedVar(event);
    VirtualDirectorySelectorDlg dlg(this, m_pManager->GetWorkspace(), m_textCtrlVD->GetValue());
    if(dlg.ShowModal() == wxID_OK) {
        m_textCtrlVD->SetValue(dlg.GetVirtualDirectoryPath());
        m_staticProjectTreeFolder->SetForegroundColour(wxColour(0, 128, 0));
        m_staticProjectTreeFolder->Refresh();
    }
}

void TemplateClassDlg::OnBrowseFilePath(wxCommandEvent& event)
{
    wxUnusedVar(event);
    wxString dir = wxT("");
    if(wxFileName::DirExists(m_projectPath)) {
        dir = m_projectPath;
    }

    dir = wxDirSelector(_("Select output folder"), dir, wxDD_DEFAULT_STYLE, wxDefaultPosition, this);
    if(!dir.IsEmpty()) {
        m_projectPath = dir;
        m_textCtrlFilePath->SetValue(m_projectPath);
    }
}

void TemplateClassDlg::OnGenerate(wxCommandEvent& event)
{
    wxUnusedVar(event);
    wxArrayString files;
    wxString newClassName = m_textCtrlClassName->GetValue();
    wxString baseClass = m_comboxCurrentTemplate->GetValue();

    if(!wxEndsWithPathSeparator(m_projectPath))
        m_projectPath += wxFILE_SEP_PATH;

    wxString header_file_name = m_textCtrlHeaderFile->GetValue();
    wxString impl_file_name = m_textCtrlCppFile->GetValue();
    wxString header_file_content = GetStringDb()->GetString(baseClass, swHeader);
    wxString impl_file_content = GetStringDb()->GetString(baseClass, swSource);

    header_file_content.Trim();
    impl_file_content.Trim();

    wxString vdpath = m_textCtrlVD->GetValue();
    // prepare the header file content + name
    // and save it to disk
    wxString buffer = header_file_content;
    buffer.Replace(swPhClass, newClassName);
    buffer.Replace(wxT("\v"), eol[m_curEol]);
    files.Add(m_projectPath + header_file_name);
    SaveBufferToFile(files.Item(0), buffer);

    // prepare the implementation file content + name
    // and save it to disk
    if(!impl_file_content.empty()) {
        buffer = wxString::Format(wxT("#include \"%s\"%s%s"), header_file_name, eol[m_curEol], eol[m_curEol]);
        buffer += impl_file_content;
        buffer.Replace(swPhClass, newClassName);
        buffer.Replace(wxT("\v"), eol[m_curEol]);
        files.Add(m_projectPath + impl_file_name);
        SaveBufferToFile(files.Item(1), buffer);
    }

    // if virtual directory is provided, add the files there
    if(!vdpath.empty()) {
        // Create the Success message first, as 'files' may be altered during creation
        wxString msg;
        msg << wxString::Format(wxT("%s%s"), files.Item(0), eol[m_curEol])
            << wxString::Format(wxT("%s%s%s"), files.Item(1), eol[m_curEol], eol[m_curEol])
            << _("Files successfully created.");

        // We have a .cpp and an .h file, and there may well be a :src and an :include folder available
        // So try to place the files appropriately. If that fails, dump both in the selected folder
        bool smartAddFiles = true;

        if((smartAddFiles && m_pManager->AddFilesToVirtualFolderIntelligently(m_textCtrlVD->GetValue(), files)) ||
           m_pManager->AddFilesToVirtualFolder(m_textCtrlVD->GetValue(), files)) {
            wxMessageBox(msg, _("Add template class"), wxOK | wxCENTER | wxICON_INFORMATION, this);
        } else {
            EndModal(wxID_CANCEL);
        }
    }
    EndModal(wxID_OK);
}

void TemplateClassDlg::OnGenerateUI(wxUpdateUIEvent& event)
{
    wxUnusedVar(event);
    // list of conditions for generation
    bool has_name = !m_textCtrlClassName->GetValue().empty();
    bool has_header_name = !m_textCtrlHeaderFile->GetValue().empty();
    bool has_template = m_comboxCurrentTemplate->GetSelection() != wxNOT_FOUND;
    bool has_path = !m_textCtrlFilePath->GetValue().empty();
    bool has_vd_path = !m_textCtrlVD->GetValue().empty();
    bool enable_cond = has_name && has_header_name && has_template && has_path;
    if(clCxxWorkspaceST::Get()->IsOpen()) {
        enable_cond = enable_cond && has_vd_path;
    }
    event.Enable(enable_cond);
}

void TemplateClassDlg::OnQuit(wxCommandEvent& event)
{
    wxUnusedVar(event);
    GetStringDb()->Save(m_configPath + defaultTmplFile);
    EndModal(wxID_CANCEL);
}

void TemplateClassDlg::OnTemplateClassSelected(wxCommandEvent& event)
{
    wxUnusedVar(event);
    wxString set = m_comboxTemplates->GetValue();
    if(GetStringDb()->IsSet(set)) {
        m_textCtrlHeader->SetValue(GetStringDb()->GetString(set, swHeader));
        m_textCtrlImpl->SetValue(GetStringDb()->GetString(set, swSource));
    }
}

void TemplateClassDlg::OnButtonAdd(wxCommandEvent& event)
{
    wxUnusedVar(event);
    wxString set = m_comboxTemplates->GetValue();
    bool isSet = GetStringDb()->IsSet(set);
    if(isSet) {
        int ret = wxMessageBox(_("Class exists!\nOverwrite?"), _("Add class"), wxYES_NO | wxICON_QUESTION);
        if(ret == wxNO)
            return;
    }
    GetStringDb()->SetString(set, swHeader, m_textCtrlHeader->GetValue());
    GetStringDb()->SetString(set, swSource, m_textCtrlImpl->GetValue());
    if(!isSet) {
        m_comboxTemplates->AppendString(set);
    }

    RefreshTemplateList();
    m_modified = true;
}

void TemplateClassDlg::OnButtonAddUI(wxUpdateUIEvent& event)
{
    // we need to have name and header content
    event.Enable(!m_comboxTemplates->GetValue().IsEmpty() && !m_textCtrlHeader->GetValue().IsEmpty());
}

void TemplateClassDlg::OnButtonChange(wxCommandEvent& event)
{
    wxUnusedVar(event);
    wxString set = m_comboxTemplates->GetValue();
    bool isSet = GetStringDb()->IsSet(set);
    if(!isSet) {
        int ret =
            ::wxMessageBox(_("That class doesn't exist!\nTry again?"), _("Change class"), wxYES_NO | wxICON_QUESTION);
        if(ret == wxNO)
            return;
    }
    GetStringDb()->SetString(set, swHeader, m_textCtrlHeader->GetValue());
    GetStringDb()->SetString(set, swSource, m_textCtrlImpl->GetValue());
    if(!isSet)
        m_comboxTemplates->AppendString(set);
    RefreshTemplateList();
    m_modified = true;
}

void TemplateClassDlg::OnButtonChangeUI(wxUpdateUIEvent& event)
{
    if(m_comboxTemplates->GetSelection() == wxNOT_FOUND)
        event.Enable(false);
    else
        event.Enable(true);
    if(m_textCtrlHeader->IsModified() == false && m_textCtrlImpl->IsModified() == false)
        event.Enable(false);
}

void TemplateClassDlg::OnButtonRemove(wxCommandEvent& event)
{
    wxUnusedVar(event);
    wxString set = m_comboxTemplates->GetValue();
    bool isSet = GetStringDb()->IsSet(set);
    if(!isSet) {
        ::wxMessageBox(wxT("Class not found!\nNothing to remove."), wxT("Remove class"));
        return;
    }

    GetStringDb()->DeleteKey(set, swHeader);
    GetStringDb()->DeleteKey(set, swSource);
    long index = m_comboxTemplates->FindString(set);
    m_comboxTemplates->Delete(index);
    RefreshTemplateList();
    m_modified = true;
}

void TemplateClassDlg::OnButtonRemoveUI(wxUpdateUIEvent& event)
{
    if(m_comboxTemplates->GetSelection() == wxNOT_FOUND)
        event.Enable(false);
    else
        event.Enable(true);
}

void TemplateClassDlg::OnButtonClear(wxCommandEvent& e)
{
    m_comboxTemplates->SetValue(wxT(""));
    m_textCtrlImpl->SetValue(wxT(""));
    m_textCtrlHeader->SetValue(wxT(""));
}

void TemplateClassDlg::OnButtonClearUI(wxUpdateUIEvent& e) { e.Enable(true); }

void TemplateClassDlg::OnInsertClassKeyword(wxCommandEvent& event)
{
    wxUnusedVar(event);
    long from, to;

    if(m_notebookFiles->GetSelection() == 0) {
        m_textCtrlHeader->GetSelection(&from, &to);
        m_textCtrlHeader->Replace(from, to, swPhClass);
        m_textCtrlHeader->SetFocus();
    } else {
        m_textCtrlImpl->GetSelection(&from, &to);
        m_textCtrlImpl->Replace(from, to, swPhClass);
        m_textCtrlImpl->SetFocus();
    }
}

void TemplateClassDlg::OnInsertClassKeywordUI(wxUpdateUIEvent& event) { event.Enable(true); }

swStringDb* TemplateClassDlg::GetStringDb() { return m_plugin->GetStringDb(); }

void TemplateClassDlg::RefreshTemplateList()
{
    wxArrayString templates;
    GetStringDb()->GetAllSets(templates);
    m_comboxCurrentTemplate->Clear();

    for(wxUint32 i = 0; i < templates.GetCount(); i++) {
        m_comboxCurrentTemplate->AppendString(templates[i]);
    }

    if(templates.GetCount()) {
        m_comboxCurrentTemplate->Select(0);
    }
}

bool TemplateClassDlg::SaveBufferToFile(const wxString filename, const wxString buffer, int eolType)
{
    wxTextFile file(filename);
    wxTextFileType tft = wxTextFileType_Dos;
    if(file.Exists()) {
        int ret = wxMessageBox(_("File already exists!\n\n Overwrite?"), _("Generate class files"),
                               wxYES_NO | wxYES_DEFAULT | wxICON_EXCLAMATION);
        if(ret == wxID_NO)
            return false;
    }
    switch(m_curEol) {
    case 0:
        tft = wxTextFileType_Dos;
        break;
    case 1:
        tft = wxTextFileType_Mac;
        break;
    case 2:
        tft = wxTextFileType_Unix;
        break;
    }
    file.Create();
    file.AddLine(buffer, tft);
    file.Write(tft);
    file.Close();

    // notify about file creation
    clFileSystemEvent create_event(wxEVT_FILE_CREATED);
    create_event.SetPath(filename);
    EventNotifier::Get()->AddPendingEvent(create_event);
    return true;
}

void TemplateClassDlg::OnStcHeaderFileContentChnaged(wxStyledTextEvent& event) { event.Skip(); }
void TemplateClassDlg::OnStcImplFileContentChnaged(wxStyledTextEvent& event) { event.Skip(); }

void TemplateClassDlg::OnVirtualDirUI(wxUpdateUIEvent& event) { event.Enable(clCxxWorkspaceST::Get()->IsOpen()); }

void TemplateClassDlg::SetConfigPath(const wxString& configPath) { this->m_configPath = configPath; }

void TemplateClassDlg::SetProjectPath(const wxString& projectPath)
{
    this->m_projectPath = projectPath;
    m_textCtrlFilePath->SetValue(projectPath);
}