/*
 * em-account-prefs.c
 *
 * 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/>
 *
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

/* XXX EAccountManager handles all the user interface stuff.  This subclass
 *     applies policies using mailer resources that EAccountManager does not
 *     have access to.  The desire is to someday move account management
 *     completely out of the mailer, perhaps to evolution-data-server. */

#include "em-account-prefs.h"

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

#include <camel/camel-url.h>

#include <glib/gi18n.h>

#include "e-util/e-error.h"

#include "em-config.h"
#include "em-account-editor.h"
#include "e-mail-shell-backend.h"

#define EM_ACCOUNT_PREFS_GET_PRIVATE(obj) \
	(G_TYPE_INSTANCE_GET_PRIVATE \
	((obj), EM_TYPE_ACCOUNT_PREFS, EMAccountPrefsPrivate))

struct _EMAccountPrefsPrivate {
	gpointer druid;   /* weak pointer */
	gpointer editor;  /* weak pointer */
};

static gpointer parent_class;

static void
account_prefs_enable_account_cb (EAccountTreeView *tree_view)
{
	EAccount *account;

	account = e_account_tree_view_get_selected (tree_view);
	g_return_if_fail (account != NULL);

	e_mail_shell_backend_load_store_by_uri (
		global_mail_shell_backend,
		account->source->url, account->name);
}

static void
account_prefs_disable_account_cb (EAccountTreeView *tree_view)
{
	EAccountList *account_list;
	EAccount *account;
	gpointer parent;
	gint response;

	account = e_account_tree_view_get_selected (tree_view);
	g_return_if_fail (account != NULL);

	account_list = e_account_tree_view_get_account_list (tree_view);
	g_return_if_fail (account_list != NULL);

	if (!e_account_list_account_has_proxies (account_list, account))
		return;

	parent = gtk_widget_get_toplevel (GTK_WIDGET (tree_view));
	parent = GTK_WIDGET_TOPLEVEL (parent) ? parent : NULL;

	response = e_error_run (
		parent, "mail:ask-delete-proxy-accounts", NULL);

	if (response != GTK_RESPONSE_YES) {
		g_signal_stop_emission_by_name (tree_view, "disable-account");
		return;
	}

	e_account_list_remove_account_proxies (account_list, account);

	e_mail_shell_backend_remove_store_by_uri (
		global_mail_shell_backend, account->source->url);
}

static void
account_prefs_add_account (EAccountManager *manager)
{
	EMAccountPrefsPrivate *priv;
	EMAccountEditor *emae;
	gpointer parent;

	priv = EM_ACCOUNT_PREFS_GET_PRIVATE (manager);

	if (priv->druid != NULL) {
		gtk_window_present (GTK_WINDOW (priv->druid));
		return;
	}

	parent = gtk_widget_get_toplevel (GTK_WIDGET (manager));
	parent = GTK_WIDGET_TOPLEVEL (parent) ? parent : NULL;

	/** @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");
	priv->druid = emae->editor;

	g_object_add_weak_pointer (G_OBJECT (priv->druid), &priv->druid);
	gtk_window_set_transient_for (GTK_WINDOW (priv->druid), parent);
	gtk_widget_show (priv->druid);
}

static void
account_prefs_edit_account (EAccountManager *manager)
{
	EMAccountPrefsPrivate *priv;
	EMAccountEditor *emae;
	EAccountTreeView *tree_view;
	EAccountList *account_list;
	EAccount *account;
	gpointer parent;

	priv = EM_ACCOUNT_PREFS_GET_PRIVATE (manager);

	if (priv->editor != NULL) {
		gtk_window_present (GTK_WINDOW (priv->editor));
		return;
	}

	account_list = e_account_manager_get_account_list (manager);
	tree_view = e_account_manager_get_tree_view (manager);
	account = e_account_tree_view_get_selected (tree_view);
	g_return_if_fail (account != NULL);

	parent = gtk_widget_get_toplevel (GTK_WIDGET (manager));
	parent = GTK_WIDGET_TOPLEVEL (parent) ? parent : NULL;

	/** @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");
	priv->editor = emae->editor;

	g_object_add_weak_pointer (G_OBJECT (priv->editor), &priv->editor);
	gtk_window_set_transient_for (GTK_WINDOW (priv->editor), parent);
	gtk_widget_show (priv->editor);
}

static void
account_prefs_delete_account (EAccountManager *manager)
{
	EMAccountPrefsPrivate *priv;
	EAccountTreeView *tree_view;
	EAccountList *account_list;
	EAccount *account;
	gboolean has_proxies;
	gpointer parent;
	gint response;

	priv = EM_ACCOUNT_PREFS_GET_PRIVATE (manager);

	account_list = e_account_manager_get_account_list (manager);
	tree_view = e_account_manager_get_tree_view (manager);
	account = e_account_tree_view_get_selected (tree_view);
	g_return_if_fail (account != NULL);

	/* Make sure we aren't editing anything... */
	if (priv->editor != NULL)
		return;

	parent = gtk_widget_get_toplevel (GTK_WIDGET (manager));
	parent = GTK_WIDGET_TOPLEVEL (parent) ? parent : NULL;

	has_proxies =
		e_account_list_account_has_proxies (account_list, account);

	response = e_error_run (
		parent, has_proxies ?
		"mail:ask-delete-account-with-proxies" :
		"mail:ask-delete-account", NULL);

	if (response != GTK_RESPONSE_YES) {
		g_signal_stop_emission_by_name (manager, "delete-account");
		return;
	}

	/* Remove the account from the folder tree. */
	if (account->enabled && account->source && account->source->url)
		e_mail_shell_backend_remove_store_by_uri (
			global_mail_shell_backend, account->source->url);

	/* Remove all the proxies the account has created. */
	if (has_proxies)
		e_account_list_remove_account_proxies (account_list, account);

	/* Remove it from the config file. */
	e_account_list_remove (account_list, account);

	e_account_list_save (account_list);
}

static void
account_prefs_dispose (GObject *object)
{
	EMAccountPrefsPrivate *priv;

	priv = EM_ACCOUNT_PREFS_GET_PRIVATE (object);

	if (priv->druid != NULL) {
		g_object_remove_weak_pointer (
			G_OBJECT (priv->druid), &priv->druid);
		priv->druid = NULL;
	}

	if (priv->editor != NULL) {
		g_object_remove_weak_pointer (
			G_OBJECT (priv->editor), &priv->editor);
		priv->editor = NULL;
	}

	/* Chain up to parent's dispose() method. */
	G_OBJECT_CLASS (parent_class)->dispose (object);
}

static void
account_prefs_class_init (EMAccountPrefsClass *class)
{
	GObjectClass *object_class;
	EAccountManagerClass *account_manager_class;

	parent_class = g_type_class_peek_parent (class);
	g_type_class_add_private (class, sizeof (EMAccountPrefsPrivate));

	object_class = G_OBJECT_CLASS (class);
	object_class->dispose = account_prefs_dispose;

	account_manager_class = E_ACCOUNT_MANAGER_CLASS (class);
	account_manager_class->add_account = account_prefs_add_account;
	account_manager_class->edit_account = account_prefs_edit_account;
	account_manager_class->delete_account = account_prefs_delete_account;
}

static void
account_prefs_init (EMAccountPrefs *prefs)
{
	EAccountManager *manager;
	EAccountTreeView *tree_view;

	prefs->priv = EM_ACCOUNT_PREFS_GET_PRIVATE (prefs);

	manager = E_ACCOUNT_MANAGER (prefs);
	tree_view = e_account_manager_get_tree_view (manager);

	g_signal_connect (
		tree_view, "enable-account",
		G_CALLBACK (account_prefs_enable_account_cb), NULL);

	g_signal_connect (
		tree_view, "disable-account",
		G_CALLBACK (account_prefs_disable_account_cb), NULL);
}

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

	if (G_UNLIKELY (type == 0)) {
		static const GTypeInfo type_info = {
			sizeof (EMAccountPrefsClass),
			(GBaseInitFunc) NULL,
			(GBaseFinalizeFunc) NULL,
			(GClassInitFunc) account_prefs_class_init,
			(GClassFinalizeFunc) NULL,
			NULL,  /* class_data */
			sizeof (EMAccountPrefs),
			0,     /* n_preallocs */
			(GInstanceInitFunc) account_prefs_init,
			NULL   /* value_table */
		};

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

	return type;
}

GtkWidget *
em_account_prefs_new (EAccountList *account_list)
{
	g_return_val_if_fail (E_IS_ACCOUNT_LIST (account_list), NULL);

	return g_object_new (
		EM_TYPE_ACCOUNT_PREFS, "account-list", account_list, NULL);
}