/* $Id: restore_gui.c,v 1.20 2006/05/18 16:31:13 rikster5 Exp $ */

/*******************************************************************************
 * restore_gui.c
 * A module of J-Pilot http://jpilot.org
 *
 * Copyright (C) 2001-2002 by Judd Montgomery
 *
 * 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; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 ******************************************************************************/

#include "config.h"
#include <gtk/gtk.h>
#include <sys/types.h>
#include <dirent.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>

#include "utils.h"
#include "prefs.h"
#include "sync.h"
#include "log.h"
#include "i18n.h"


static GtkWidget *user_entry;
static GtkWidget *user_id_entry;
static GtkWidget *restore_clist;

static gboolean cb_restore_destroy(GtkWidget *widget)
{
   gtk_main_quit();
   return FALSE;
}

static void
cb_restore_ok(GtkWidget *widget, gpointer data)
{
   GList *list, *temp_list;
   char *text;
   char file[FILENAME_MAX], backup_file[FILENAME_MAX];
   char home_dir[FILENAME_MAX];
   struct stat buf, backup_buf;
   int r1, r2;

   list=GTK_CLIST(restore_clist)->selection;

   get_home_file_name("", home_dir, sizeof(home_dir));

   /* Remove anything that was supposed to be installed */
   g_snprintf(file, sizeof(file), "%s/"EPN"_to_install", home_dir);
   unlink(file);

   jp_logf(JP_LOG_WARN, "%s%s%s\n", "-----===== ", _("Restore Handheld"), " ======-----");
   for (temp_list=list; temp_list; temp_list = temp_list->next) {
      gtk_clist_get_text(GTK_CLIST(restore_clist), GPOINTER_TO_INT(temp_list->data), 0, &text);
      jp_logf(JP_LOG_DEBUG, "row %ld [%s]\n", (long) temp_list->data, text);
      /* Look for the file in the JPILOT_HOME and JPILOT_HOME/backup.
       * Restore the newest modified date one, or the only one.
       */
      g_snprintf(file, sizeof(file), "%s/%s", home_dir, text);
      g_snprintf(backup_file, sizeof(backup_file), "%s/backup/%s", home_dir, text);
      r1 = stat(file, &buf);
      r2 = stat(backup_file, &backup_buf);
      if ((!r1) && (!r2)) {
	 /* found in JPILOT_HOME and JPILOT_HOME/backup */
	 if (buf.st_mtime > backup_buf.st_mtime) {
	    jp_logf(JP_LOG_DEBUG, "Restore: home and backup using home file %s\n", text);
	    install_append_line(file);
	 } else {
	    jp_logf(JP_LOG_DEBUG, "Restore: home and backup using home/backup file %s\n", text);
	    install_append_line(backup_file);
	 }
      } else if (!r1) {
	 /* only found in JPILOT_HOME */
	 install_append_line(file);
	 jp_logf(JP_LOG_DEBUG, "Restore: using home file %s\n", text);
      } else if (!r2) {
	 /* only found in JPILOT_HOME/backup */
	 jp_logf(JP_LOG_DEBUG, "Restore: using home/backup file %s\n", text);
	 install_append_line(backup_file);
      }
   }

   setup_sync(SYNC_NO_PLUGINS|SYNC_OVERRIDE_USER|SYNC_RESTORE);

   gtk_widget_destroy(data);
}

static void
cb_restore_quit(GtkWidget *widget,
	       gpointer   data)
{
   gtk_widget_destroy(data);
}

/*
 * path is the dir to open
 * check_for_dups will check the clist and not add if its a duplicate
 * check_exts will not add if its not a pdb, prc, or pqa.
 */
static int populate_clist_sub(char *path, int check_for_dups, int check_exts)
{
   char *row_text[1];
   DIR *dir;
   struct dirent *dirent;
   char last4[8];
   char *text;
   int i, num, len, found;

   jp_logf(JP_LOG_DEBUG, "opening dir %s\n", path);
   dir = opendir(path);
   num = 0;
   if (!dir) {
      jp_logf(JP_LOG_DEBUG, "opening dir failed\n");
   } else {
      for (i=0; (dirent = readdir(dir)); i++) {
	 if (i>1000) {
	    jp_logf(JP_LOG_WARN, "populate_clist_sub(): %s\n", _("infinite loop"));
	    closedir(dir);
	    return EXIT_FAILURE;
	 }
	 if (dirent->d_name[0]=='.') {
	    continue;
	 }
	 if (!strncmp(dirent->d_name, "Unsaved Preferences", 17)) {
	    jp_logf(JP_LOG_DEBUG, "skipping %s\n", dirent->d_name);
	    continue;
	 }
	 if (check_exts) {
	    len = strlen(dirent->d_name);
	    if (len < 4) {
	       continue;
	    }
	    strncpy(last4, dirent->d_name+len-4, 4);
	    last4[4]='\0';
	    if (strcmp(last4, ".pdb") &&
		strcmp(last4, ".prc") &&
		strcmp(last4, ".pqa")) {
	       continue;
	    }
	 }

	 if (check_for_dups) {
	    found=0;
	    for (i=0; i<GTK_CLIST(restore_clist)->rows; i++) {
	       gtk_clist_get_text(GTK_CLIST(restore_clist), i, 0, &text);
	       if (!(strcmp(dirent->d_name, text))) {
		  found=1;
		  break;
	       }
	    }
	    if (found) continue;
	 }
	 row_text[0]=dirent->d_name;
#ifdef ENABLE_GTK2
	 {
	    gchar *utf8_text;

	    utf8_text = g_locale_to_utf8(row_text[0], -1, NULL, NULL, NULL);
	    row_text[0] = utf8_text;
	    gtk_clist_append(GTK_CLIST(restore_clist), row_text);
	    g_free(utf8_text);
	 }
#else
	 gtk_clist_append(GTK_CLIST(restore_clist), row_text);
#endif
	 num++;
      }
      closedir(dir);
   }

   gtk_clist_sort (GTK_CLIST (restore_clist));
   return num;
}


static int populate_clist()
{
   char path[FILENAME_MAX];
   int i;

   get_home_file_name("backup", path, sizeof(path));
   cleanup_path(path);
   populate_clist_sub(path, 0, 0);

   get_home_file_name("", path, sizeof(path));
   cleanup_path(path);
   populate_clist_sub(path, 1, 1);

   for (i=0; i<GTK_CLIST(restore_clist)->rows; i++) {
      clist_select_row(GTK_CLIST(restore_clist), i, 0);
   }

   return EXIT_SUCCESS;
}


int restore_gui(GtkWidget *main_window, int w, int h, int x, int y)
{
   GtkWidget *restore_window;
   GtkWidget *button;
   GtkWidget *vbox;
   GtkWidget *hbox;
   GtkWidget *scrolled_window;
   GtkWidget *label;
   const char *svalue;
   long ivalue;
   char str_int[20];

   jp_logf(JP_LOG_DEBUG, "restore_gui()\n");

   restore_window = gtk_widget_new(GTK_TYPE_WINDOW,
				   "type", GTK_WINDOW_TOPLEVEL,
				   "title", _("Restore Handheld"),
				   NULL);

   gtk_window_set_default_size(GTK_WINDOW(restore_window), w, h);
   gtk_widget_set_uposition(restore_window, x, y);

   gtk_container_set_border_width(GTK_CONTAINER(restore_window), 5);

   gtk_window_set_default_size(GTK_WINDOW(restore_window), w, h);

   gtk_window_set_modal(GTK_WINDOW(restore_window), TRUE);
   gtk_window_set_transient_for(GTK_WINDOW(restore_window), GTK_WINDOW(main_window));

   gtk_signal_connect(GTK_OBJECT(restore_window), "destroy",
		      GTK_SIGNAL_FUNC(cb_restore_destroy), restore_window);

   vbox = gtk_vbox_new(FALSE, 0);
   gtk_container_add(GTK_CONTAINER(restore_window), vbox);

   /* Label for instructions */
   label = gtk_label_new(_("To restore your handheld:"));
   gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
   gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
   label = gtk_label_new(_("1. Choose all the applications you wish to restore.  The default is all."));
   gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
   gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
   label = gtk_label_new(_("2. Enter the User Name and User ID."));
   gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
   gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
   label = gtk_label_new(_("3. Press the OK button."));
   gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
   gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
   label = gtk_label_new(_("This will overwrite data that is currently on the handheld."));
   gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
   gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);

   /* Put the memo list window up */
   scrolled_window = gtk_scrolled_window_new(NULL, NULL);
   gtk_container_set_border_width(GTK_CONTAINER(scrolled_window), 0);
   gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_window),
				  GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
   gtk_box_pack_start(GTK_BOX(vbox), scrolled_window, TRUE, TRUE, 0);

   restore_clist = gtk_clist_new(1);

   gtk_clist_set_shadow_type(GTK_CLIST(restore_clist), SHADOW);
   gtk_clist_set_selection_mode(GTK_CLIST(restore_clist), GTK_SELECTION_EXTENDED);

   gtk_container_add(GTK_CONTAINER(scrolled_window), GTK_WIDGET(restore_clist));

   /* User entry */
   hbox = gtk_hbox_new(FALSE, 5);
   gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
   label = gtk_label_new(_("User Name"));
   gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
   user_entry = gtk_entry_new_with_max_length(126);
   get_pref(PREF_USER, NULL, &svalue);
   if (svalue) {
      gtk_entry_set_text(GTK_ENTRY(user_entry), svalue);
   }
   gtk_box_pack_start(GTK_BOX(hbox), user_entry, TRUE, TRUE, 0);


   /* User ID entry */
   hbox = gtk_hbox_new(FALSE, 5);
   gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
   label = gtk_label_new(_("User ID"));
   gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 0);
   user_id_entry = gtk_entry_new_with_max_length(10);
   get_pref(PREF_USER_ID, &ivalue, NULL);
   sprintf(str_int, "%ld", ivalue);
   gtk_entry_set_text(GTK_ENTRY(user_id_entry), str_int);
   gtk_box_pack_start(GTK_BOX(hbox), user_id_entry, TRUE, TRUE, 0);


   hbox = gtk_hbutton_box_new();
   gtk_container_set_border_width(GTK_CONTAINER(hbox), 12);
   gtk_button_box_set_layout(GTK_BUTTON_BOX (hbox), GTK_BUTTONBOX_END);
   gtk_button_box_set_spacing(GTK_BUTTON_BOX(hbox), 6);
   gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);

#ifdef ENABLE_GTK2
   button = gtk_button_new_from_stock(GTK_STOCK_CANCEL);
#else
   button = gtk_button_new_with_label(_("Cancel"));
#endif
   gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, TRUE, 0);
   gtk_signal_connect(GTK_OBJECT(button), "clicked",
		      GTK_SIGNAL_FUNC(cb_restore_quit), restore_window);

#ifdef ENABLE_GTK2
   button = gtk_button_new_from_stock(GTK_STOCK_OK);
#else
   button = gtk_button_new_with_label(_("OK"));
#endif
   gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, TRUE, 0);
   gtk_signal_connect(GTK_OBJECT(button), "clicked",
		      GTK_SIGNAL_FUNC(cb_restore_ok), restore_window);

   populate_clist();

   gtk_widget_show_all(restore_window);

   gtk_main();

   return EXIT_SUCCESS;
}