/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>  
 *
 *
 * Authors:
 *		Jeffrey Stedfast <fejj@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <camel/camel-url.h>

#include <glib/gi18n.h>

#include "mail-config.h"
#include "mail-ops.h"
#include "mail-send-recv.h"

#include "e-util/e-account-utils.h"
#include "e-util/e-error.h"
#include "e-util/e-util-private.h"

#include "em-account-prefs.h"
#include "em-account-editor.h"
#include "e-mail-shell-module.h"

static void em_account_prefs_class_init (EMAccountPrefsClass *class);
static void em_account_prefs_init       (EMAccountPrefs *prefs);
static void em_account_prefs_finalise   (GObject *obj);
static void em_account_prefs_destroy    (GtkObject *object);

static void mail_accounts_load (EMAccountPrefs *prefs);


static GtkVBoxClass *parent_class = NULL;


#define PREFS_WINDOW(prefs) GTK_WINDOW (gtk_widget_get_ancestor (GTK_WIDGET (prefs), GTK_TYPE_WINDOW))


GType
em_account_prefs_get_type (void)
{
	static GType type = 0;

	if (!type) {
		GTypeInfo type_info = {
			sizeof (EMAccountPrefsClass),
			NULL, NULL,
			(GClassInitFunc) em_account_prefs_class_init,
			NULL, NULL,
			sizeof (EMAccountPrefs),
			0,
			(GInstanceInitFunc) em_account_prefs_init,
		};

		type = g_type_register_static (gtk_vbox_get_type (), "EMAccountPrefs", &type_info, 0);
	}

	return type;
}

static void
em_account_prefs_class_init (EMAccountPrefsClass *klass)
{
	GtkObjectClass *gtk_object_class = (GtkObjectClass *) klass;
	GObjectClass *object_class = (GObjectClass *) klass;

	parent_class = g_type_class_ref (gtk_vbox_get_type ());

	gtk_object_class->destroy = em_account_prefs_destroy;

	object_class->finalize = em_account_prefs_finalise;
}

static void
em_account_prefs_init (EMAccountPrefs *prefs)
{
	prefs->druid = NULL;
	prefs->editor = NULL;
}

static void
em_account_prefs_destroy (GtkObject *obj)
{
	EMAccountPrefs *prefs = (EMAccountPrefs *) obj;

	prefs->destroyed = TRUE;

	GTK_OBJECT_CLASS (parent_class)->destroy (obj);
}

static void
em_account_prefs_finalise (GObject *obj)
{
	EMAccountPrefs *prefs = (EMAccountPrefs *) obj;

	g_object_unref (prefs->gui);

        G_OBJECT_CLASS (parent_class)->finalize (obj);
}

static void
account_add_finished (EMAccountPrefs *prefs, GObject *deadbeef)
{
	/* Either Cancel or Finished was clicked in the druid so reload the accounts */
	prefs->druid = NULL;

	if (!prefs->destroyed)
		mail_accounts_load (prefs);

	g_object_unref (prefs);
}

#include "em-config.h"

static void
account_add_clicked (GtkButton *button, gpointer user_data)
{
	EMAccountPrefs *prefs = (EMAccountPrefs *) user_data;

	if (prefs->druid == NULL) {
		EMAccountEditor *emae;

		/** @HookPoint-EMConfig: New Mail Account Druid
		 * @Id: org.gnome.evolution.mail.config.accountDruid
		 * @Type: E_CONFIG_DRUID
		 * @Class: org.gnome.evolution.mail.config:1.0
		 * @Target: EMConfigTargetAccount
		 *
		 * The new mail account druid.
		 */
		emae = em_account_editor_new(NULL, EMAE_DRUID, "org.gnome.evolution.mail.config.accountDruid");
		prefs->druid = emae->editor;

		gtk_window_set_transient_for((GtkWindow *)prefs->druid, (GtkWindow *)gtk_widget_get_toplevel((GtkWidget *)prefs));
		g_object_ref(prefs);
		/* rather nasty hack to reload the accounts, it should just listen to the e-account-list */
		g_object_weak_ref((GObject *) prefs->druid, (GWeakNotify) account_add_finished, prefs);
		gtk_widget_show(emae->editor);
	} else {
		gdk_window_raise (prefs->druid->window);
	}
}

static void
account_edit_finished (EMAccountPrefs *prefs, GObject *deadbeef)
{
	prefs->editor = NULL;

	if (!prefs->destroyed)
		mail_accounts_load (prefs);

	g_object_unref (prefs);
}

static void
account_edit_clicked (GtkButton *button, gpointer user_data)
{
	EMAccountPrefs *prefs = (EMAccountPrefs *) user_data;
	EAccountList *account_list;

	account_list = e_get_account_list ();

	if (prefs->editor == NULL) {
		GtkTreeSelection *selection;
		EAccount *account = NULL;
		GtkTreeModel *model;
		GtkTreeIter iter;

		selection = gtk_tree_view_get_selection (prefs->table);
		if (gtk_tree_selection_get_selected (selection, &model, &iter))
			gtk_tree_model_get (model, &iter, 3, &account, -1);

		if (account && !account->parent_uid && !e_account_list_account_has_proxies (account_list, account)) {
			EMAccountEditor *emae;

			/** @HookPoint-EMConfig: Mail Account Editor
			 * @Id: org.gnome.evolution.mail.config.accountEditor
			 * @Type: E_CONFIG_BOOK
			 * @Class: org.gnome.evolution.mail.config:1.0
			 * @Target: EMConfigTargetAccount
			 *
			 * The account editor window.
			 */
			emae = em_account_editor_new(account, EMAE_NOTEBOOK, "org.gnome.evolution.mail.config.accountEditor");
			prefs->editor = emae->editor;

			gtk_window_set_transient_for((GtkWindow *)prefs->editor, (GtkWindow *)gtk_widget_get_toplevel((GtkWidget *)prefs));
			g_object_ref(prefs);
			/* rather nasty hack to reload the accounts, it should just listen to the e-account-list */
			g_object_weak_ref((GObject *)prefs->editor, (GWeakNotify) account_edit_finished, prefs);
			gtk_widget_show(emae->editor);
		}
	} else {
		gdk_window_raise (prefs->editor->window);
	}
}

static void
account_delete_clicked (GtkButton *button, gpointer user_data)
{
	EMAccountPrefs *prefs = user_data;
	GtkTreeSelection *selection;
	EAccount *account = NULL;
	EAccountList *accounts;
	GtkTreeModel *model;
	GtkTreeIter iter;
	int ans;
	gboolean has_proxies = FALSE;

	accounts = e_get_account_list ();

	selection = gtk_tree_view_get_selection (prefs->table);
	if (gtk_tree_selection_get_selected (selection, &model, &iter))
		gtk_tree_model_get (model, &iter, 3, &account, -1);

	/* make sure we have a valid account selected and that we aren't editing anything... */
	if (account == NULL || prefs->editor != NULL)
		return;

	has_proxies = e_account_list_account_has_proxies (accounts, account);
	ans = e_error_run(PREFS_WINDOW(prefs), has_proxies?"mail:ask-delete-account-with-proxies":"mail:ask-delete-account",NULL);

	if (ans == GTK_RESPONSE_YES) {
		int len;

		/* remove it from the folder-tree in the shell */
		if (account->enabled && account->source && account->source->url)
			e_mail_shell_module_remove_store_by_uri (
				mail_shell_module, account->source->url);

		/* remove all the proxies account has created*/
		if (has_proxies)
			e_account_list_remove_account_proxies (accounts, account);

		/* remove it from the config file */
		e_account_list_remove (accounts, account);

		mail_config_write ();

		gtk_list_store_remove ((GtkListStore *) model, &iter);

		len = e_list_length ((EList *) accounts);
		if (len > 0) {
			if ( !gtk_list_store_iter_is_valid ((GtkListStore *) model, &iter))
				gtk_tree_model_get_iter_first (model, &iter);

			gtk_tree_selection_select_iter (selection, &iter);
		} else {
			gtk_widget_set_sensitive (GTK_WIDGET (prefs->mail_edit), FALSE);
			gtk_widget_set_sensitive (GTK_WIDGET (prefs->mail_delete), FALSE);
			gtk_widget_set_sensitive (GTK_WIDGET (prefs->mail_default), FALSE);
		}
	}
}

static void
account_default_clicked (GtkButton *button, gpointer user_data)
{
	EMAccountPrefs *prefs = user_data;
	GtkTreeSelection *selection;
	EAccount *account = NULL;
	GtkTreeModel *model;
	GtkTreeIter iter;

	selection = gtk_tree_view_get_selection (prefs->table);
	if (gtk_tree_selection_get_selected (selection, &model, &iter))
		gtk_tree_model_get (model, &iter, 3, &account, -1);

	if (account) {
		e_set_default_account (account);

		mail_config_write ();

		mail_accounts_load (prefs);
	}
}

static void
account_able_changed(EAccount *account)
{
	/* FIXME: do this directly by listening to the mail accounts changed events in the relevant components */

	if (account->source->url) {
		if (account->enabled)
			e_mail_shell_module_load_store_by_uri (
				mail_shell_module,
				account->source->url, account->name);
		else
			e_mail_shell_module_remove_store_by_uri (
				mail_shell_module, account->source->url);
	}

	mail_config_write ();
}

static void
account_able_toggled (GtkCellRendererToggle *renderer, char *arg1, gpointer user_data)
{
	EMAccountPrefs *prefs = user_data;
	GtkTreeSelection *selection;
	EAccountList *account_list;
	EAccount *account = NULL;
	GtkTreeModel *model;
	GtkTreePath *path;
	GtkTreeIter iter;

	account_list = e_get_account_list ();

	path = gtk_tree_path_new_from_string (arg1);
	model = gtk_tree_view_get_model (prefs->table);
	selection = gtk_tree_view_get_selection (prefs->table);

	if (gtk_tree_model_get_iter (model, &iter, path)) {
		gtk_tree_model_get (model, &iter, 3, &account, -1);

		if (e_account_list_account_has_proxies (account_list, account)) {
			int ans;

			ans = e_error_run(PREFS_WINDOW(prefs), "mail:ask-delete-proxy-accounts",NULL);

			if (ans == GTK_RESPONSE_NO) {
				gtk_tree_path_free (path);
				return;
			}

			e_account_list_remove_account_proxies (account_list, account);
			gtk_widget_set_sensitive (GTK_WIDGET (prefs->mail_edit), 1);
		}

		account->enabled = !account->enabled;
		e_account_list_change(e_get_account_list (), account);
		account_able_changed (account);
		gtk_list_store_set ((GtkListStore *) model, &iter, 0, account->enabled, -1);

		/* let the rest of the application know it changed */
	}

	gtk_tree_path_free (path);
}

static void
account_double_click (GtkTreeView *treeview, GtkTreePath *path,
		      GtkTreeViewColumn *column, EMAccountPrefs *prefs)
{
	account_edit_clicked (NULL, prefs);
}

static void
account_cursor_change (GtkTreeSelection *selection, EMAccountPrefs *prefs)
{
	EAccountList *account_list;
	EAccount *account = NULL;
	GtkTreeModel *model;
	GtkTreeIter iter;
 	const char *url = NULL;
	int state;
	EAccount *default_account;

	account_list = e_get_account_list ();
	default_account = e_get_default_account ();

	state = gconf_client_key_is_writable(mail_config_get_gconf_client(), "/apps/evolution/mail/accounts", NULL);
	if (state) {
		state = gtk_tree_selection_get_selected (selection, &model, &iter);
		if (state) {
			gtk_tree_model_get (model, &iter, 3, &account, -1);
			url = e_account_get_string (account, E_ACCOUNT_SOURCE_URL);
		} else {
			gtk_widget_grab_focus (GTK_WIDGET (prefs->mail_add));
		}
		gtk_widget_set_sensitive (GTK_WIDGET (prefs), TRUE);
	} else {
		gtk_widget_set_sensitive (GTK_WIDGET (prefs), FALSE);
	}

	if (url != NULL) {
		gboolean has_proxies;

		has_proxies = e_account_list_account_has_proxies (account_list, account);
		gtk_widget_set_sensitive (GTK_WIDGET (prefs->mail_edit), !has_proxies);
	}

	gtk_widget_set_sensitive (GTK_WIDGET (prefs->mail_delete), state);

	if(account == default_account)
		gtk_widget_set_sensitive (GTK_WIDGET (prefs->mail_default), FALSE);
	else
		gtk_widget_set_sensitive (GTK_WIDGET (prefs->mail_default), state);
}

static void
mail_accounts_load (EMAccountPrefs *prefs)
{
	EAccount *default_account;
	EAccountList *accounts;
	GtkListStore *model;
	GtkTreeIter iter;
	char *name, *val;
	EIterator *node;
	int row = 0;
	GtkTreeSelection *selection;

	model = (GtkListStore *) gtk_tree_view_get_model (prefs->table);
	gtk_list_store_clear (model);

	default_account = e_get_default_account ();

	accounts = e_get_account_list ();
	node = e_list_get_iterator ((EList *) accounts);
	selection = gtk_tree_view_get_selection(prefs->table);

	while (e_iterator_is_valid (node)) {
		EAccount *account;
		CamelURL *url;

		account = (EAccount *) e_iterator_get (node);

		if (!account->parent_uid) {
			url = account->source && account->source->url ? camel_url_new (account->source->url, NULL) : NULL;

			gtk_list_store_append (model, &iter);
			if (account == default_account) {
				/* translators: default account indicator */
				name = val = g_strdup_printf ("%s %s", account->name, _("[Default]"));
			} else {
				val = account->name;
				name = NULL;
			}

			gtk_list_store_set (model, &iter,
					    0, account->enabled,
					    1, val,
					    2, url && url->protocol ? url->protocol : (char *) _("None"),
					    3, account,
					    -1);
			g_free (name);

			if (url)
				camel_url_free (url);

			/* select the first row by default */
			if (row == 0 && !prefs->changed)
				gtk_tree_selection_select_iter (selection, &iter);
			row++;
		}

		e_iterator_next (node);
	}

	g_object_unref (node);
}



GtkWidget *em_account_prefs_treeview_new (char *widget_name, char *string1, char *string2,
					  int int1, int int2);

GtkWidget *
em_account_prefs_treeview_new (char *widget_name, char *string1, char *string2, int int1, int int2)
{
	GtkWidget *table, *scrolled;
	GtkTreeSelection *selection;
	GtkCellRenderer *renderer;
	GtkListStore *model;

	scrolled = gtk_scrolled_window_new (NULL, NULL);
	gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled),
					GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
	gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled), GTK_SHADOW_IN);

	renderer = gtk_cell_renderer_toggle_new ();
	g_object_set ((GObject *) renderer, "activatable", TRUE, NULL);

	model = gtk_list_store_new (4, G_TYPE_BOOLEAN, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_POINTER);
	table = gtk_tree_view_new_with_model ((GtkTreeModel *) model);
	g_object_unref (model);
	gtk_tree_view_insert_column_with_attributes ((GtkTreeView *) table, -1, _("Enabled"),
						     renderer, "active", 0, NULL);

	g_object_set_data ((GObject *) scrolled, "renderer", renderer);

	renderer = gtk_cell_renderer_text_new ();
	gtk_tree_view_insert_column_with_attributes ((GtkTreeView *) table, -1, _("Account name"),
						     renderer, "text", 1, NULL);
	gtk_tree_view_insert_column_with_attributes ((GtkTreeView *)table, -1, _("Protocol"),
						     renderer, "text", 2, NULL);
	selection = gtk_tree_view_get_selection ((GtkTreeView *) table);
	gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
	gtk_tree_view_set_headers_visible ((GtkTreeView *) table, TRUE);
	atk_object_set_name (gtk_widget_get_accessible (table), _("Mail Accounts"));


	/* FIXME: column auto-resize? */
	/* Is this needed?
	   gtk_tree_view_column_set_alignment (gtk_tree_view_get_column (prefs->table, 0), 1.0);*/

	gtk_container_add (GTK_CONTAINER (scrolled), table);

	g_object_set_data ((GObject *) scrolled, "table", table);

	gtk_widget_show (scrolled);
	gtk_widget_show (table);

	return scrolled;
}

static void
em_account_prefs_construct (EMAccountPrefs *prefs)
{
	GtkWidget *toplevel, *widget;
	GtkCellRenderer *renderer;
	GladeXML *gui;
	char *gladefile;

	gladefile = g_build_filename (EVOLUTION_GLADEDIR,
				      "mail-config.glade",
				      NULL);
	gui = glade_xml_new (gladefile, "accounts_tab", NULL);
	g_free (gladefile);

	prefs->gui = gui;

	/* get our toplevel widget */
	toplevel = glade_xml_get_widget (gui, "toplevel");

	/* reparent */
	g_object_ref (toplevel);
	gtk_container_remove (GTK_CONTAINER (toplevel->parent), toplevel);
	gtk_container_add (GTK_CONTAINER (prefs), toplevel);
	g_object_unref (toplevel);

	widget = glade_xml_get_widget (gui, "etableMailAccounts");

	prefs->table = (GtkTreeView *) g_object_get_data ((GObject *) widget, "table");

	renderer = g_object_get_data ((GObject *) widget, "renderer");
	g_signal_connect (renderer, "toggled", G_CALLBACK (account_able_toggled), prefs);

	prefs->changed = FALSE;
	mail_accounts_load (prefs);
	prefs->changed = TRUE;

	prefs->mail_add = GTK_BUTTON (glade_xml_get_widget (gui, "cmdAccountAdd"));
	g_signal_connect (prefs->mail_add, "clicked", G_CALLBACK (account_add_clicked), prefs);

	prefs->mail_edit = GTK_BUTTON (glade_xml_get_widget (gui, "cmdAccountEdit"));
	g_signal_connect (prefs->mail_edit, "clicked", G_CALLBACK (account_edit_clicked), prefs);

	prefs->mail_delete = GTK_BUTTON (glade_xml_get_widget (gui, "cmdAccountDelete"));
	g_signal_connect (prefs->mail_delete, "clicked", G_CALLBACK (account_delete_clicked), prefs);

	prefs->mail_default = GTK_BUTTON (glade_xml_get_widget (gui, "cmdAccountDefault"));
	g_signal_connect (prefs->mail_default, "clicked", G_CALLBACK (account_default_clicked), prefs);

	g_signal_connect (gtk_tree_view_get_selection (prefs->table),
			  "changed", G_CALLBACK (account_cursor_change), prefs);
	g_signal_connect (prefs->table, "row-activated", G_CALLBACK (account_double_click), prefs);

 	account_cursor_change(gtk_tree_view_get_selection(prefs->table), prefs);
}

GtkWidget *
em_account_prefs_new (void)
{
	EMAccountPrefs *new;

	new = (EMAccountPrefs *) g_object_new (em_account_prefs_get_type (), NULL);
	em_account_prefs_construct (new);

	return (GtkWidget *) new;
}