/*
 * This file is part of the Code::Blocks IDE and licensed under the GNU General Public License, version 3
 * http://www.gnu.org/licenses/gpl-3.0.html
 *
 * $Revision$
 * $Id$
 * $HeadURL$
 */

#include "sdk.h"
#ifndef CB_PRECOMP
    #include "cbeditor.h"
    #include "cbproject.h"
    #include "editormanager.h"
    #include "manager.h"
    #include "projectfile.h"
    #include "projectmanager.h"
#endif
#include "compilererrors.h"
#include <wx/arrimpl.cpp>

WX_DEFINE_OBJARRAY(ErrorsArray);

CompilerErrors::CompilerErrors()
    : m_ErrorIndex(-1)
{
    //ctor
}

CompilerErrors::~CompilerErrors()
{
    //dtor
}

void CompilerErrors::AddError(CompilerLineType lt, cbProject* project, const wxString& filename, long int line, const wxString& error)
{
    CompileError err;
    err.lineType = lt;
    err.project = project;
    err.filename = filename;
    err.line = line;
    err.errors.Add(error);
    DoAddError(err);
}

void CompilerErrors::GotoError(int nr)
{
    if (m_Errors.GetCount() == 0 || nr < 0 || nr > (int)m_Errors.GetCount() - 1)
        return;
    m_ErrorIndex = nr;
    DoGotoError(m_Errors[m_ErrorIndex]);
}

void CompilerErrors::Next()
{
    if (m_ErrorIndex >= (int)m_Errors.GetCount() - 1)
        return;

    // locate next *error* (not warning), if there is any
    int bkp = ++m_ErrorIndex;
    while (bkp < (int)m_Errors.GetCount())
    {
        if (m_Errors[bkp].lineType == cltError)
        {
            bool isNote =
                ((m_Errors[bkp].errors.GetCount()>0) && m_Errors[bkp].errors[0].StartsWith(_T("note:")));
            if(!isNote)
            {
                m_ErrorIndex = bkp;
                break;
            }
        }
        ++bkp;
    }

    DoGotoError(m_Errors[m_ErrorIndex]);
}

void CompilerErrors::Previous()
{
    if (m_ErrorIndex <= 0)
        return;

    // locate previous *error* (not warning), if there is any
    int bkp = --m_ErrorIndex;
    while (bkp >= 0)
    {
        if (m_Errors[bkp].lineType == cltError)
        {
            bool isNote =
                ((m_Errors[bkp].errors.GetCount()>0) && m_Errors[bkp].errors[0].StartsWith(_T("note:")));
            if(!isNote)
            {
                m_ErrorIndex = bkp;
                break;
            }
        }
        --bkp;
    }

    DoGotoError(m_Errors[m_ErrorIndex]);
}

void CompilerErrors::Clear()
{
    DoClearErrorMarkFromAllEditors();
    m_Errors.Clear();
    m_ErrorIndex = -1;
}

void CompilerErrors::DoAddError(const CompileError& error)
{
//    int index = ErrorLineHasMore(error.filename, error.line);
//    if (index != -1)
//    {
//        for (unsigned int i = 0; i < error.errors.GetCount(); ++i)
//            m_Errors[index].errors.Add(error.errors[i]);
//    }
//    else
        m_Errors.Add(error);
}

int CompilerErrors::ErrorLineHasMore(const wxString& filename, long int line) const
{
    for (unsigned int i = 0; i < m_Errors.GetCount(); ++i)
    {
        if (m_Errors[i].filename.Matches(filename) &&
            m_Errors[i].line == line)
            return i;
    }
    return -1;
}

void CompilerErrors::DoGotoError(const CompileError& error)
{
    if (error.line <= 0)
        return;
    DoClearErrorMarkFromAllEditors();
    cbEditor* ed = 0;
    cbProject* project = error.project ? error.project : Manager::Get()->GetProjectManager()->GetActiveProject();
    if (project && Manager::Get()->GetProjectManager()->IsProjectStillOpen(project))
    {
        wxString filename = error.filename;
        bool isAbsolute = (filename.Length() > 1 && filename.GetChar(1) == ':') ||
                           filename.StartsWith(_T("/")) ||
                           filename.StartsWith(_T("\\"));
        ProjectFile* f = project->GetFileByFilename(error.filename, !isAbsolute, true);
        if (f)
        {
            ed = Manager::Get()->GetEditorManager()->Open(f->file.GetFullPath());
            if (ed)
            {
                ed->SetProjectFile(f);
            }
        }
        else
        {
            if(!isAbsolute) // this is always the case, except for system headers
                filename.Prepend(project->GetCommonTopLevelPath());

            ed = Manager::Get()->GetEditorManager()->Open(filename);
        }
    }

    // if we reached here and ed is NULL, the filename in the output isn't relative
    // to the project root directory or doesn't belong to the project

    // first check if we can open it directly...
    if (!ed)
        ed = Manager::Get()->GetEditorManager()->Open(error.filename);

    // check if we find the file among opened files (highly probable for error
    // messages since we are getting error for something we have just screwed up)
    if (!ed)
    {
        for (int i = 0; i < Manager::Get()->GetEditorManager()->GetEditorsCount(); ++i)
        {
            cbEditor* edit = Manager::Get()->GetEditorManager()->GetBuiltinEditor(i);
            if (!edit)
                continue;

            ProjectFile* pf = edit->GetProjectFile();
            if (!pf)
                continue;

            if (IsSuffixOfPath(error.filename, pf->file.GetFullPath()))
            {
                ed = Manager::Get()->GetEditorManager()->Open(pf->file.GetFullPath());
                break;
            }
        }
    }

    // finally go through the project files and try to find the file there
    if (!ed && project)
    {
        for (FilesList::iterator it = project->GetFilesList().begin(); it != project->GetFilesList().end(); ++it)
        {
            ProjectFile* pf = *it;
            if (!pf)
                continue;

            if (IsSuffixOfPath(error.filename, pf->file.GetFullPath()))
            {
                ed = Manager::Get()->GetEditorManager()->Open(pf->file.GetFullPath());
                break;
            }
        }
    }

    if (ed)
    {
        ed->Activate();
        ed->UnfoldBlockFromLine(error.line - 1);
        ed->GotoLine(error.line - 1);
        ed->SetErrorLine(error.line - 1);
    }
}

void CompilerErrors::DoClearErrorMarkFromAllEditors()
{
    EditorManager* edMan = Manager::Get()->GetEditorManager();
    for (int i = 0; i < edMan->GetEditorsCount(); ++i)
    {
        cbEditor* ed = edMan->GetBuiltinEditor(i);
        if (ed)
            ed->SetErrorLine(-1);
    }
}

bool CompilerErrors::HasNextError() const
{
    return m_ErrorIndex < (int)m_Errors.GetCount();
}

bool CompilerErrors::HasPreviousError() const
{
    return m_ErrorIndex > 0;
}

wxString CompilerErrors::GetErrorString(int index)
{
    if (m_Errors.GetCount() == 0 || index < 0 || index > (int)m_Errors.GetCount() - 1)
        return wxEmptyString;
    wxArrayString& errors = m_Errors[index].errors;
    wxString error;
    if (errors.GetCount())
        error = errors[0];
    return error;
}

int CompilerErrors::GetFirstError() const
{
    for (unsigned int i = 0; i < m_Errors.GetCount(); ++i)
    {
        if (m_Errors[i].lineType == cltError)
            return i;
    }
    return -1;
}

unsigned int CompilerErrors::GetCount(CompilerLineType lt) const
{
    unsigned int count = 0;
    for (unsigned int i = 0; i < m_Errors.GetCount(); ++i)
    {
        if (m_Errors[i].lineType == lt)
            ++count;
    }
    return count;
}
