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/***************************************************************************
 *             __________               __   ___.
 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
 *                     \/            \/     \/    \/            \/
 * $Id$
 *
 * Copyright (C) 2005 Jonas Haggqvist
 *
 * 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.
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
 ****************************************************************************/
#include "plugin.h"
#include "lib/pluginlib_actions.h"


static int files, dirs, audiofiles, m3ufiles, imagefiles, videofiles, largestdir;
static int lasttick;
static bool cancel;


/* we use PLA */
#define STATS_STOP PLA_EXIT
#define STATS_STOP2 PLA_CANCEL
/* this set the context to use with PLA */
static const struct button_mapping *plugin_contexts[] = { pla_main_ctx };

/* we don't have yet a filetype attribute for image files */
static const char *image_exts[] = {"bmp","jpg","jpe","jpeg","png","ppm"};

/* neither for video ones */
static const char *video_exts[] = {"mpg","mpeg","mpv","m2v"};

static void prn(const char *str, int y)
{
    rb->lcd_puts(0,y,str);
#ifdef HAVE_REMOTE_LCD
    rb->lcd_remote_puts(0,y,str);
#endif
}

static void update_screen(void)
{
    char buf[32];

    rb->lcd_clear_display();
#ifdef HAVE_REMOTE_LCD
    rb->lcd_remote_clear_display();
#endif

    rb->snprintf(buf, sizeof(buf), "Total Files: %d", files);
    prn(buf,0);
    rb->snprintf(buf, sizeof(buf), "Audio: %d", audiofiles);
    prn(buf,1);
    rb->snprintf(buf, sizeof(buf), "Playlists: %d", m3ufiles);
    prn(buf,2);
    rb->snprintf(buf, sizeof(buf), "Images: %d", imagefiles);
    prn(buf,3);
    rb->snprintf(buf, sizeof(buf), "Videos: %d", videofiles);
    prn(buf,4);
    rb->snprintf(buf, sizeof(buf), "Directories: %d", dirs);
    prn(buf,5);
    rb->snprintf(buf, sizeof(buf), "Max files in Dir: %d", largestdir);
    prn(buf,6);

    rb->lcd_update();
#ifdef HAVE_REMOTE_LCD
    rb->lcd_remote_update();
#endif
}

static void traversedir(char* location, char* name)
{
    int button;
    struct dirent *entry;
    DIR* dir;
    char fullpath[MAX_PATH];
    int files_in_dir = 0;

    rb->snprintf(fullpath, sizeof(fullpath), "%s/%s", location, name);
    dir = rb->opendir(fullpath);
    if (dir) {
        entry = rb->readdir(dir);
        while (entry) {
            if (cancel)
                break;
            /* Skip .. and . */
            if (rb->strcmp(entry->d_name, ".") && rb->strcmp(entry->d_name, ".."))
            {
                struct dirinfo info = rb->dir_get_info(dir, entry);
                if (info.attribute & ATTR_DIRECTORY) {
                    traversedir(fullpath, entry->d_name);
                    dirs++;
                }
                else {
                    files_in_dir++; files++;

                    /* get the filetype from the filename */
                    int attr = rb->filetype_get_attr(entry->d_name);
                    switch (attr & FILE_ATTR_MASK)
                    {
                    case FILE_ATTR_AUDIO:
                        audiofiles++;
                        break;

                    case FILE_ATTR_M3U:
                        m3ufiles++;
                        break;
 
                    default:
                    {
                        /* use hardcoded filetype_exts to count
                         * image and video files until we get
                         * new attributes added to filetypes.h */
                        char *ptr = rb->strrchr(entry->d_name,'.');
                        if(ptr) {
                            unsigned i;
                            ptr++;
                            for(i=0;i<ARRAYLEN(image_exts);i++) {
                                if(!rb->strcasecmp(ptr,image_exts[i])) {
                                    imagefiles++; break;
                                }
                            }

                            if (i >= ARRAYLEN(image_exts)) {
                                /* not found above - try video files */
                                for(i=0;i<ARRAYLEN(video_exts);i++) {
                                    if(!rb->strcasecmp(ptr,video_exts[i])) {
                                        videofiles++; break;
                                    }
                                }
                            }
                        }
                        } /* default: */
                    } /* switch */
                }
            }

            if (*rb->current_tick - lasttick > (HZ/2)) {
                update_screen();
                lasttick = *rb->current_tick;
                button = pluginlib_getaction(TIMEOUT_NOBLOCK, plugin_contexts,
                               ARRAYLEN(plugin_contexts));
                if (button == STATS_STOP) {
                    cancel = true;
                    break;
                }
            }

            entry = rb->readdir(dir);
        }
        rb->closedir(dir);
    }
    if (largestdir < files_in_dir)
        largestdir = files_in_dir;
}

/* this is the plugin entry point */
enum plugin_status plugin_start(const void* parameter)
{
    int button;

    (void)parameter;

    files = 0;
    dirs = 0;
    audiofiles = 0;
    m3ufiles = 0;
    imagefiles = 0;
    videofiles = 0;
    largestdir = 0;
    cancel = false;

    rb->splash(HZ, "Counting...");
    update_screen();
    lasttick = *rb->current_tick;

    traversedir("", "");
    if (cancel) {
        rb->splash(HZ, "Aborted");
        return PLUGIN_OK;
    }
    update_screen();
#ifdef HAVE_REMOTE_LCD
    rb->remote_backlight_on();
#endif
    rb->backlight_on();
    rb->splash(HZ, "Done");
    update_screen();
    while (1) {

        button = pluginlib_getaction(TIMEOUT_BLOCK, plugin_contexts,
                               ARRAYLEN(plugin_contexts));
        switch (button) {
            case STATS_STOP:
            case STATS_STOP2:
                return PLUGIN_OK;
                break;
            default:
                if (rb->default_event_handler(button) == SYS_USB_CONNECTED) {
                    return PLUGIN_USB_CONNECTED;
                }
                break;
        }
    }
    return PLUGIN_OK;
}