/*
  ==============================================================================

   This file is part of the JUCE library.
   Copyright (c) 2017 - ROLI Ltd.

   JUCE is an open source library subject to commercial or open-source
   licensing.

   The code included in this file is provided under the terms of the ISC license
   http://www.isc.org/downloads/software-support-policy/isc-license. Permission
   To use, copy, modify, and/or distribute this software for any purpose with or
   without fee is hereby granted provided that the above copyright notice and
   this permission notice appear in all copies.

   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.

  ==============================================================================
*/

FileSearchPath::FileSearchPath() {}
FileSearchPath::~FileSearchPath() {}

FileSearchPath::FileSearchPath (const String& path)
{
    init (path);
}

FileSearchPath::FileSearchPath (const FileSearchPath& other)
   : directories (other.directories)
{
}

FileSearchPath& FileSearchPath::operator= (const FileSearchPath& other)
{
    directories = other.directories;
    return *this;
}

FileSearchPath& FileSearchPath::operator= (const String& path)
{
    init (path);
    return *this;
}

void FileSearchPath::init (const String& path)
{
    directories.clear();
    directories.addTokens (path, ";", "\"");
    directories.trim();
    directories.removeEmptyStrings();

    for (int i = directories.size(); --i >= 0;)
        directories.set (i, directories[i].unquoted());
}

int FileSearchPath::getNumPaths() const
{
    return directories.size();
}

File FileSearchPath::operator[] (const int index) const
{
    return File (directories [index]);
}

String FileSearchPath::toString() const
{
    StringArray directories2 (directories);
    for (int i = directories2.size(); --i >= 0;)
        if (directories2[i].containsChar (';'))
            directories2.set (i, directories2[i].quoted());

    return directories2.joinIntoString (";");
}

void FileSearchPath::add (const File& dir, const int insertIndex)
{
    directories.insert (insertIndex, dir.getFullPathName());
}

bool FileSearchPath::addIfNotAlreadyThere (const File& dir)
{
    for (int i = 0; i < directories.size(); ++i)
        if (File (directories[i]) == dir)
            return false;

    add (dir);
    return true;
}

void FileSearchPath::remove (const int index)
{
    directories.remove (index);
}

void FileSearchPath::addPath (const FileSearchPath& other)
{
    for (int i = 0; i < other.getNumPaths(); ++i)
        addIfNotAlreadyThere (other[i]);
}

void FileSearchPath::removeRedundantPaths()
{
    for (int i = directories.size(); --i >= 0;)
    {
        const File d1 (directories[i]);

        for (int j = directories.size(); --j >= 0;)
        {
            const File d2 (directories[j]);

            if ((i != j) && (d1.isAChildOf (d2) || d1 == d2))
            {
                directories.remove (i);
                break;
            }
        }
    }
}

void FileSearchPath::removeNonExistentPaths()
{
    for (int i = directories.size(); --i >= 0;)
        if (! File (directories[i]).isDirectory())
            directories.remove (i);
}

int FileSearchPath::findChildFiles (Array<File>& results,
                                    const int whatToLookFor,
                                    const bool searchRecursively,
                                    const String& wildCardPattern) const
{
    int total = 0;

    for (int i = 0; i < directories.size(); ++i)
        total += operator[] (i).findChildFiles (results,
                                                whatToLookFor,
                                                searchRecursively,
                                                wildCardPattern);

    return total;
}

bool FileSearchPath::isFileInPath (const File& fileToCheck,
                                   const bool checkRecursively) const
{
    for (int i = directories.size(); --i >= 0;)
    {
        const File d (directories[i]);

        if (checkRecursively)
        {
            if (fileToCheck.isAChildOf (d))
                return true;
        }
        else
        {
            if (fileToCheck.getParentDirectory() == d)
                return true;
        }
    }

    return false;
}
