/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Misc utility functions 

*

*/

#include "appdep.hpp"

// ----------------------------------------------------------------------------------------------------------

void PrintOutputLn(const string& s)

{

    // check if printing to a file or directory to STDOUT

    if (!_cl_outputfile.empty())

    {

        _outputf << s << endl;    

    }

    else

    {

        cout << s << endl;

    }

}

// ----------------------------------------------------------------------------------------------------------

void MakeSureTrailingDirectoryMarkerExists(string& path)

{

	if (!path.empty() && path.at(path.length()-1) != DIR_SEPARATOR2)

        {

		path.insert(path.length(), DIR_SEPARATOR);

        }

}

// ----------------------------------------------------------------------------------------------------------

bool FileExists(const string& path)

{

    if (!path.empty())

    {

        struct stat stat_p;

        if (stat(path.c_str(), &stat_p) == 0)

            return !S_ISDIR(stat_p.st_mode);  // return true if not a directory

        else

            return false;  // cannot find entry

    }

    else

        return false;

}

// ----------------------------------------------------------------------------------------------------------

bool DirectoryExists(const string& path)

{

    if (!path.empty())

    {

        string temp_path = path;

        // remove trailing directory marker if exists

        if (path.at(path.length()-1) == DIR_SEPARATOR2)

            temp_path = path.substr(0, path.length()-1);

        struct stat stat_p;

        if (stat(temp_path.c_str(), &stat_p) == 0)

            return S_ISDIR(stat_p.st_mode);  // return true if a directory

        else

            return false;  // cannot find entry

    }

    else

        return false;

}

// ----------------------------------------------------------------------------------------------------------

bool RemoveFile(const string& path)

{

    return _unlink(path.c_str()) == 0;

}

// ----------------------------------------------------------------------------------------------------------

bool RemoveDirectoryWithAllFiles(const string& path)

{

    string temp_path = path;

    MakeSureTrailingDirectoryMarkerExists(temp_path);

    // remove all files in the directory via OS call

    string del_command = DEL_ALL_COMMAND;

    string cmd = del_command + " " + temp_path + "* " + CERR_TO_NULL;

    vector<string> tempVector;

    ExecuteCommand(cmd, tempVector);

    // finally tries to remove the directory, fails if not empty

    return _rmdir(path.c_str()) == 0;

}

// ----------------------------------------------------------------------------------------------------------

string LowerCase(const string& s)

{

	char* buf = new char[s.length()];

	s.copy(buf, s.length());

	for(unsigned int i = 0; i < s.length(); i++)

		buf[i] = tolower(buf[i]);

	string r(buf, s.length());

	delete buf;

	return r;

}

// ----------------------------------------------------------------------------------------------------------

void MkDirAll(const string& path)

{

    if (!path.empty() && !DirectoryExists(path))

    {

        string target_path = path;

        // make sure that the directory has a trailing directory marker

        MakeSureTrailingDirectoryMarkerExists(target_path);

        // loop through each character in the string and try to find directory delimeters

        for (unsigned int i=0; i<target_path.length(); i++)

        {

            string::size_type pos = target_path.find(DIR_SEPARATOR, i);

            if (pos != string::npos)

            {

                // construct the base directory name

                string base_directory = target_path.substr(0, pos+1);

                if (!DirectoryExists(base_directory))

                {

                    _mkdir(base_directory.c_str());    

                }

                i=pos;

            }    

        }

    }

}

// ----------------------------------------------------------------------------------------------------------

bool ExecuteCommand(const string& command, vector<string>& resultset)

{

    // note, cannot use compiler parameters "-std=c++98" because of popen/pclose

    // also cannot compile this code is MSVC because usage of popen/pclose

    FILE* fp;

    char buffer[1024];

    string tempstr;

    resultset.clear();

    if ((fp = _popen(command.c_str(), "r")) == NULL)

    {    

        return false;

    }

    while (fgets(buffer, sizeof(buffer), fp))

    {

        tempstr = buffer;

        resultset.push_back(tempstr.substr(0, tempstr.size()-1));  

    }   

    _pclose(fp);

    return true;

}

// ----------------------------------------------------------------------------------------------------------

string& TrimRight(string& s)

{

	int pos(s.size());

	for (; pos && (s[pos-1]==' ' || s[pos-1]=='\t'); --pos);

	s.erase(pos, s.size()-pos);

	return s;

}

// ----------------------------------------------------------------------------------------------------------

string& TrimLeft(string& s)

{

	int pos(0);

	for (; s[pos]==' ' || s[pos]=='\t'; ++pos);

	s.erase(0, pos);

	return s;

}

// ----------------------------------------------------------------------------------------------------------

string& TrimAll(string& s)

{

	return TrimLeft(TrimRight(s));

}

// ----------------------------------------------------------------------------------------------------------

int StringICmp(const string& s1, const string& s2)

{

    string ss1 = LowerCase(s1);

    string ss2 = LowerCase(s2);

    return ss1.compare(ss2);

}

// ----------------------------------------------------------------------------------------------------------

int StringICmpFileNamesWithoutExtension(const string& s1, const string& s2)

{

    // remove extension and then compare

    string ss1;

    string ss2;

    string::size_type dot_pos1 = s1.find_last_of('.');

    if (dot_pos1 == string::npos)

        ss1 = s1;

    else

        ss1 = s1.substr(0, dot_pos1);    

    string::size_type dot_pos2 = s2.find_last_of('.');

    if (dot_pos2 == string::npos)

        ss2 = s2;

    else

        ss2 = s2.substr(0, dot_pos2);

    return StringICmp(ss1, ss2);

}

// ----------------------------------------------------------------------------------------------------------

bool TimestampsMatches(const time_t& orginal_time, const time_t& new_time)

{

	// allow two second difference to both directions

    if (new_time-2 <= orginal_time && orginal_time <= new_time+2)

        return true;

    else

        return false;

}

// ----------------------------------------------------------------------------------------------------------

string Int2Str(int value)

{

    ostringstream os;

    if (os << value)

        return os.str();

    else    

        return ""; 

}

// ----------------------------------------------------------------------------------------------------------

int Str2Int(const string& s)

{

    int res(0);

    // return 0 for empty string

    if (s.empty())

    {

    }

    // hex conversion if the string begings with 0x...

    else if (s.length() >= 3 && s.at(0) == '0' && s.at(1) == 'x')

    {        

        istringstream is(s);

        is >> hex >> res;

        if(!is || !is.eof())

            res = 0;

    }

    // normal integer

    else  

    {        

        istringstream is(s);

        is >> res;

        if(!is || !is.eof())

            res = 0;

    }    

    return res;

}

// ----------------------------------------------------------------------------------------------------------

void InsertQuotesToFilePath(string& s)

{

    // example C:\Program Files\do something.exe -> C:\"Program Files"\"do something.exe"

    bool firstBacklashFound = false;

    bool anyQuoteInserted = false;

    if (!s.empty())

    {

        int s_length = s.length();

        for (int i=0; i<s_length; i++)

        {

            string::size_type pos = s.find(DIR_SEPARATOR, i);

            if (pos != string::npos)

            {

                if (!firstBacklashFound)

                {

                    // replace \ -> \"

                    s.insert(pos+1, "\"");

                    anyQuoteInserted = true;

                    firstBacklashFound = true;

                    s_length++;

                    i = pos+1;

                }

                else

                {

                    // replace \ -> "\"

                    s.insert(pos, "\"");

                    s.insert(pos+2, "\"");

                    anyQuoteInserted = true;                        

                    s_length += 2;

                    i = pos+2;

                }

            }          

            if (i>255)

                return;  // something went wrong..

        }

        // append extra quote to the end if needed        

        if (anyQuoteInserted)

            s.insert(s.length(), "\"");

    }

}

// ----------------------------------------------------------------------------------------------------------

void ShowProgressInfo(unsigned int& current_progress_percentage, unsigned int& current_progress, unsigned int& max_progress, bool print_initial_value)

{

    if (print_initial_value)

    {

        cerr << "(  0% complete)";

    }

    else

    {    

        current_progress++;

        unsigned int temp_percentage = int( (double) current_progress / (double) max_progress * 100 );

        if (temp_percentage > current_progress_percentage)

        {

            current_progress_percentage = temp_percentage;

            cerr << "\b\b\b\b\b\b\b\b\b\b\b\b\b\b";

            if (current_progress_percentage < 10)

                cerr << "  ";

            else if (current_progress_percentage < 100)

                cerr << " ";                

            cerr << current_progress_percentage << "% complete)";  

        }            

    }    

}

// ----------------------------------------------------------------------------------------------------------