/****************************************************************************
 * languagefile updater
 * for USB Loader GX    *giantpune*
 ***************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/dir.h>

#include "UpdateLanguage.h"
#include "gettext.h"
#include "FileOperations/fileops.h"
#include "FileOperations/DirList.h"
#include "menu.h"
#include "network/networkops.h"
#include "network/http.h"
#include "network/URL_List.h"
#include "prompts/ProgressWindow.h"
#include "utils/ShowError.h"
#include "gecko.h"

static const char * LanguageFilesURL = "http://usbloader-gui.googlecode.com/svn/trunk/Languages/";

int DownloadAllLanguageFiles()
{
    if(!CreateSubfolder(Settings.languagefiles_path))
    {
        ShowError(tr("Could not create path: %s"), Settings.languagefiles_path);
        return -1;
    }

    if(!IsNetworkInit())
    {
        ShowError(tr("Network is not initiated."));
        return -2;
    }
    char fullURL[300];

    URL_List LinkList(LanguageFilesURL);
    int listsize = LinkList.GetURLCount();
    int files_downloaded = 0;

    ShowProgress(tr("Updating Language Files:"), 0, 0, 0, listsize, false, true);

    for (int i = 0; i < listsize; i++)
    {
        const char * filename = strrchr(LinkList.GetURL(i), '/');
        if(filename) filename++;
        else filename = LinkList.GetURL(i);

        if(!filename)
            continue;

        const char * FileExt = strrchr(filename, '.');
        if (!FileExt || strcasecmp(FileExt, ".lang") != 0)
            continue;

        gprintf("%s\n", filename);

        ShowProgress(tr("Updating Language Files:"), 0, filename, i, listsize, false, true);

        snprintf(fullURL, sizeof(fullURL), "%s%s", LanguageFilesURL, filename);

        struct block file = downloadfile(fullURL);
        if (file.data)
        {
            char filepath[300];
            snprintf(filepath, sizeof(filepath), "%s/%s", Settings.languagefiles_path, filename);
            FILE * pfile = fopen(filepath, "wb");
            if(pfile)
            {
                fwrite(file.data, 1, file.size, pfile);
                fclose(pfile);
                files_downloaded++;
            }
            free(file.data);
        }
    }

    ProgressStop();

    return files_downloaded;
}

int UpdateLanguageFiles()
{
    if(!CreateSubfolder(Settings.languagefiles_path))
    {
        ShowError(tr("Could not create path: %s"), Settings.languagefiles_path);
        return -1;
    }

    if(!IsNetworkInit())
    {
        ShowError(tr("Network is not initiated."));
        return -2;
    }

	DirList Dir(Settings.languagefiles_path, ".lang");

    //give up now if we didn't find any
    if (Dir.GetFilecount() == 0) return -2;

    char savepath[150];
    char codeurl[200];

    //we assume that the network will already be init by another function
    // ( that has gui eletents in it because this one doesn't)
    int done = 0;

    //build the URL, save path, and download each file and save it
    for(int i = 0; i < Dir.GetFilecount(); ++i)
    {
        snprintf(codeurl, sizeof(codeurl), "%s%s", LanguageFilesURL, Dir.GetFilename(i));
        snprintf(savepath, sizeof(savepath), "%s/%s", Settings.languagefiles_path, Dir.GetFilename(i));

        struct block file = downloadfile(codeurl);

        ShowProgress(tr("Updating Language Files:"), 0, Dir.GetFilename(i), i, Dir.GetFilecount(), false, true);

        if (file.data != NULL)
        {
            FILE * pfile;
            pfile = fopen(savepath, "wb");
            if (pfile != NULL)
            {
                fwrite(file.data, 1, file.size, pfile);
                fclose(pfile);
                done++;
            }
            free(file.data);
        }
    }

    ProgressStop();

    // return the number of files we updated
    return done;
}