/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-minicard.c
 * Copyright (C) 2000  Helix Code, Inc.
 * Author: Chris Lahey <clahey@helixcode.com>
 *
 * This library 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 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 library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */

#include <config.h>
#include <gnome.h>
#include "e-minicard.h"
#include "e-minicard-label.h"
#include "e-text.h"
#include <ebook/e-book.h>
#include <e-util/e-canvas.h>
#include <e-util/e-util.h>
#include <e-util/e-canvas-utils.h>
#include <e-util/e-popup-menu.h>
#include "e-contact-editor.h"
#include "e-contact-save-as.h"
#include "e-minicard-view.h"

static void e_minicard_init		(EMinicard		 *card);
static void e_minicard_class_init	(EMinicardClass	 *klass);
static void e_minicard_set_arg (GtkObject *o, GtkArg *arg, guint arg_id);
static void e_minicard_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);
static void e_minicard_destroy (GtkObject *object);
static gboolean e_minicard_event (GnomeCanvasItem *item, GdkEvent *event);
static void e_minicard_realize (GnomeCanvasItem *item);
static void e_minicard_unrealize (GnomeCanvasItem *item);
static void e_minicard_reflow ( GnomeCanvasItem *item, int flags );

static void e_minicard_resize_children( EMinicard *e_minicard );
static void remodel( EMinicard *e_minicard );

static GnomeCanvasGroupClass *parent_class = NULL;

typedef struct _EMinicardField EMinicardField;

struct _EMinicardField {
	ECardSimpleField field;
	GnomeCanvasItem *label;
};

#define E_MINICARD_FIELD(field) ((EMinicardField *)(field))

static void
e_minicard_field_destroy(EMinicardField *field)
{
	gtk_object_destroy(GTK_OBJECT(field->label));
	g_free(field);
}

/* The arguments we take */
enum {
	ARG_0,
	ARG_WIDTH,
	ARG_HEIGHT,
	ARG_HAS_FOCUS,
	ARG_CARD
};

GtkType
e_minicard_get_type (void)
{
  static GtkType minicard_type = 0;

  if (!minicard_type)
    {
      static const GtkTypeInfo minicard_info =
      {
        "EMinicard",
        sizeof (EMinicard),
        sizeof (EMinicardClass),
        (GtkClassInitFunc) e_minicard_class_init,
        (GtkObjectInitFunc) e_minicard_init,
        /* reserved_1 */ NULL,
        /* reserved_2 */ NULL,
        (GtkClassInitFunc) NULL,
      };

      minicard_type = gtk_type_unique (gnome_canvas_group_get_type (), &minicard_info);
    }

  return minicard_type;
}

static void
e_minicard_class_init (EMinicardClass *klass)
{
  GtkObjectClass *object_class;
  GnomeCanvasItemClass *item_class;

  object_class = (GtkObjectClass*) klass;
  item_class = (GnomeCanvasItemClass *) klass;

  parent_class = gtk_type_class (gnome_canvas_group_get_type ());
  
  gtk_object_add_arg_type ("EMinicard::width", GTK_TYPE_DOUBLE, 
			   GTK_ARG_READWRITE, ARG_WIDTH); 
  gtk_object_add_arg_type ("EMinicard::height", GTK_TYPE_DOUBLE, 
			   GTK_ARG_READABLE, ARG_HEIGHT);
  gtk_object_add_arg_type ("EMinicard::has_focus", GTK_TYPE_ENUM,
			   GTK_ARG_READWRITE, ARG_HAS_FOCUS);
  gtk_object_add_arg_type ("EMinicard::card", GTK_TYPE_OBJECT, 
			   GTK_ARG_READWRITE, ARG_CARD);
 
  object_class->set_arg = e_minicard_set_arg;
  object_class->get_arg = e_minicard_get_arg;
  object_class->destroy = e_minicard_destroy;
  
  /* GnomeCanvasItem method overrides */
  item_class->realize     = e_minicard_realize;
  item_class->unrealize   = e_minicard_unrealize;
  item_class->event       = e_minicard_event;
}

static void
e_minicard_init (EMinicard *minicard)
{
  /*   minicard->card = NULL;*/
  minicard->rect = NULL;
  minicard->fields = NULL;
  minicard->width = 10;
  minicard->height = 10;
  minicard->has_focus = FALSE;
  
  minicard->card = NULL;
  minicard->simple = e_card_simple_new(NULL);

  e_canvas_item_set_reflow_callback(GNOME_CANVAS_ITEM(minicard), e_minicard_reflow);
}

static void
e_minicard_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
	GnomeCanvasItem *item;
	EMinicard *e_minicard;

	item = GNOME_CANVAS_ITEM (o);
	e_minicard = E_MINICARD (o);
	
	switch (arg_id){
	case ARG_WIDTH:
		if (e_minicard->width != GTK_VALUE_DOUBLE (*arg)) {
			e_minicard->width = GTK_VALUE_DOUBLE (*arg);
			e_minicard_resize_children(e_minicard);
			if ( GTK_OBJECT_FLAGS( e_minicard ) & GNOME_CANVAS_ITEM_REALIZED )
				e_canvas_item_request_reflow(item);
		}
	  break;
	case ARG_HAS_FOCUS:
		if (e_minicard->fields) {
			if ( GTK_VALUE_ENUM(*arg) == E_FOCUS_START ||
			     GTK_VALUE_ENUM(*arg) == E_FOCUS_CURRENT) {
				gnome_canvas_item_set(E_MINICARD_FIELD(e_minicard->fields->data)->label,
						      "has_focus", GTK_VALUE_ENUM(*arg),
						      NULL);
			} else if ( GTK_VALUE_ENUM(*arg) == E_FOCUS_END ) {
				gnome_canvas_item_set(E_MINICARD_FIELD(g_list_last(e_minicard->fields)->data)->label,
						      "has_focus", GTK_VALUE_ENUM(*arg),
						      NULL);
			}
		}
		else
			e_canvas_item_grab_focus(item);
		break;
	case ARG_CARD:
		if (e_minicard->card)
			gtk_object_unref (GTK_OBJECT(e_minicard->card));
		e_minicard->card = E_CARD(GTK_VALUE_OBJECT (*arg));
		if (e_minicard->card)
			gtk_object_ref (GTK_OBJECT(e_minicard->card));
		gtk_object_set(GTK_OBJECT(e_minicard->simple),
			       "card", e_minicard->card,
			       NULL);
		remodel(e_minicard);
		e_canvas_item_request_reflow(item);
		break;
	}
}

static void
e_minicard_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
	EMinicard *e_minicard;

	e_minicard = E_MINICARD (object);

	switch (arg_id) {
	case ARG_WIDTH:
	  GTK_VALUE_DOUBLE (*arg) = e_minicard->width;
	  break;
	case ARG_HEIGHT:
	  GTK_VALUE_DOUBLE (*arg) = e_minicard->height;
	  break;
	case ARG_HAS_FOCUS:
		GTK_VALUE_ENUM (*arg) = e_minicard->has_focus ? E_FOCUS_CURRENT : E_FOCUS_NONE;
		break;
	case ARG_CARD:
		e_card_simple_sync_card(e_minicard->simple);
		GTK_VALUE_OBJECT (*arg) = GTK_OBJECT(e_minicard->card);
		break;
	default:
	  arg->type = GTK_TYPE_INVALID;
	  break;
	}
}

static void
e_minicard_destroy (GtkObject *object)
{
	EMinicard *e_minicard;

	g_return_if_fail (object != NULL);
	g_return_if_fail (E_IS_MINICARD (object));

	e_minicard = E_MINICARD (object);
	
	g_list_foreach(e_minicard->fields, (GFunc) e_minicard_field_destroy, NULL);
	g_list_free(e_minicard->fields);

	if (e_minicard->card)
		gtk_object_unref (GTK_OBJECT(e_minicard->card));
	if (e_minicard->simple)
		gtk_object_unref (GTK_OBJECT(e_minicard->simple));

	if (GTK_OBJECT_CLASS (parent_class)->destroy)
		(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}

static void
e_minicard_realize (GnomeCanvasItem *item)
{
	EMinicard *e_minicard;
	GnomeCanvasGroup *group;

	e_minicard = E_MINICARD (item);
	group = GNOME_CANVAS_GROUP( item );

	if (GNOME_CANVAS_ITEM_CLASS(parent_class)->realize)
		(* GNOME_CANVAS_ITEM_CLASS(parent_class)->realize) (item);
	
	e_minicard->rect =
	  gnome_canvas_item_new( group,
				 gnome_canvas_rect_get_type(),
				 "x1", (double) 0,
				 "y1", (double) 0,
				 "x2", (double) e_minicard->width - 1,
				 "y2", (double) e_minicard->height - 1,
				 "outline_color", NULL,
				 NULL );

	e_minicard->header_rect =
	  gnome_canvas_item_new( group,
				 gnome_canvas_rect_get_type(),
				 "x1", (double) 2,
				 "y1", (double) 2,
				 "x2", (double) e_minicard->width - 3,
				 "y2", (double) e_minicard->height - 3,
				 "fill_color", "grey70",
				 NULL );

	e_minicard->header_text =
	  gnome_canvas_item_new( group,
				 e_text_get_type(),
				 "anchor", GTK_ANCHOR_NW,
				 "width", (double) ( e_minicard->width - 12 ),
				 "clip", TRUE,
				 "use_ellipsis", TRUE,
				 "font", "lucidasans-bold-10",
				 "fill_color", "black",
				 "text", "",
				 NULL );
	e_canvas_item_move_absolute(e_minicard->header_text, 6, 6);

	remodel(e_minicard);
	e_canvas_item_request_reflow(item);

	if (!item->canvas->aa) {
	}
}

static void
e_minicard_unrealize (GnomeCanvasItem *item)
{
  EMinicard *e_minicard;

  e_minicard = E_MINICARD (item);

  if (!item->canvas->aa)
    {
    }

  if (GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize)
    (* GNOME_CANVAS_ITEM_CLASS(parent_class)->unrealize) (item);
}

static void
card_added_cb (EBook* book, EBookStatus status, const char *id, gpointer user_data)
{
	g_print ("%s: %s(): a card was added\n", __FILE__, __FUNCTION__);
}

static void
card_changed_cb (EBook* book, EBookStatus status, gpointer user_data)
{
	g_print ("%s: %s(): a card was changed with status %d\n", __FILE__, __FUNCTION__, status);
}

static void
save_as (GtkWidget *widget, EMinicard *minicard)
{
	e_card_simple_sync_card(minicard->simple);
	e_contact_save_as(_("Save as VCard"), minicard->card);
}

/* Callback for the add_card signal from the contact editor */
static void
add_card_cb (EContactEditor *ce, ECard *card, gpointer data)
{
	EBook *book;

	book = E_BOOK (data);
	e_book_add_card (book, card, card_added_cb, NULL);
}

/* Callback for the commit_card signal from the contact editor */
static void
commit_card_cb (EContactEditor *ce, ECard *card, gpointer data)
{
	EBook *book;

	book = E_BOOK (data);
	e_book_commit_card (book, card, card_changed_cb, NULL);
}

/* Callback used when the contact editor is closed */
static void
editor_closed_cb (EContactEditor *ce, gpointer data)
{
	gtk_object_unref (GTK_OBJECT (ce));
}

static gboolean
e_minicard_event (GnomeCanvasItem *item, GdkEvent *event)
{
	EMinicard *e_minicard;
	
	e_minicard = E_MINICARD (item);
	
	switch( event->type ) {
	case GDK_FOCUS_CHANGE:
		{
			GdkEventFocus *focus_event = (GdkEventFocus *) event;
			if ( focus_event->in ) {
				gnome_canvas_item_set( e_minicard->rect, 
						       "outline_color", "grey50", 
						       NULL );
				gnome_canvas_item_set( e_minicard->header_rect, 
						       "fill_color", "darkblue",
						       NULL );
				gnome_canvas_item_set( e_minicard->header_text, 
						       "fill_color", "white",
						       NULL );
				e_minicard->has_focus = TRUE;
			} else {
				EBook *book;
				
				e_card_simple_sync_card(e_minicard->simple);
				
				gtk_object_get(GTK_OBJECT(GNOME_CANVAS_ITEM(e_minicard)->parent),
					       "book", &book,
					       NULL);
				
				/* Add the card in the contact editor to our ebook */
				e_book_commit_card (book,
						    e_minicard->card,
						    card_changed_cb,
						    NULL);

				gnome_canvas_item_set( e_minicard->rect, 
						       "outline_color", NULL, 
						       NULL );
				gnome_canvas_item_set( e_minicard->header_rect, 
						       "fill_color", "grey70",
						       NULL );
				gnome_canvas_item_set( e_minicard->header_text, 
						       "fill_color", "black",
						       NULL );
				e_minicard->has_focus = FALSE;
			}
		}
		break;
	case GDK_BUTTON_PRESS:
		if (event->button.button == 1) {
			e_canvas_item_grab_focus(item);
		} else if (event->button.button == 3) {
			EPopupMenu menu[] = { {"Save as VCard", NULL, GTK_SIGNAL_FUNC(save_as), 0}, {NULL, NULL, NULL, 0} };
			e_popup_menu_run (menu, (GdkEventButton *)event, 0, e_minicard);
		}
		break;

	case GDK_2BUTTON_PRESS:
		if (event->button.button == 1 && E_IS_MINICARD_VIEW(item->parent)) {
			EContactEditor *ce;
			EBook *book;

			gtk_object_get(GTK_OBJECT(item->parent),
				       "book", &book,
				       NULL);
			g_assert (E_IS_BOOK (book));

			ce = e_contact_editor_new (e_minicard->card, FALSE);

			gtk_signal_connect (GTK_OBJECT (ce), "add_card",
					    GTK_SIGNAL_FUNC (add_card_cb), book);
			gtk_signal_connect (GTK_OBJECT (ce), "commit_card",
					    GTK_SIGNAL_FUNC (commit_card_cb), book);
			gtk_signal_connect (GTK_OBJECT (ce), "editor_closed",
					    GTK_SIGNAL_FUNC (editor_closed_cb), NULL);

			return TRUE;
		}
		break;
	case GDK_KEY_PRESS:
		if (event->key.keyval == GDK_Tab || 
		    event->key.keyval == GDK_KP_Tab || 
		    event->key.keyval == GDK_ISO_Left_Tab) {
			GList *list;
			for (list = e_minicard->fields; list; list = list->next) {
				EMinicardField *field = E_MINICARD_FIELD(list->data);
				GnomeCanvasItem *item = field->label;
				EFocus has_focus;
				gtk_object_get(GTK_OBJECT(item),
					       "has_focus", &has_focus,
					       NULL);
				if (has_focus != E_FOCUS_NONE) {
					if (event->key.state & GDK_SHIFT_MASK)
						list = list->prev;
					else
						list = list->next;
					if (list) {
						EMinicardField *field = E_MINICARD_FIELD(list->data);
						GnomeCanvasItem *item = field->label;
						gnome_canvas_item_set(item,
								      "has_focus", (event->key.state & GDK_SHIFT_MASK) ? E_FOCUS_END : E_FOCUS_START,
								      NULL);
						return 1;
					} else {
						return 0;
					}
				}
			}
		}
	default:
		break;
	}
	
	if (GNOME_CANVAS_ITEM_CLASS( parent_class )->event)
		return (* GNOME_CANVAS_ITEM_CLASS( parent_class )->event) (item, event);
	else
		return 0;
}

static void
e_minicard_resize_children( EMinicard *e_minicard )
{
	if ( GTK_OBJECT_FLAGS( e_minicard ) & GNOME_CANVAS_ITEM_REALIZED ) {
		GList *list;
		
		gnome_canvas_item_set( e_minicard->header_text,
				       "width", (double) e_minicard->width - 12,
				       NULL );
		for ( list = e_minicard->fields; list; list = g_list_next( list ) ) {
			gnome_canvas_item_set( E_MINICARD_FIELD( list->data )->label,
					       "width", (double) e_minicard->width - 4.0,
					       NULL );
		}
	}
}

static void
field_changed (EText *text, EMinicard *e_minicard)
{
	ECardSimpleType type;
	char *string;

	type = GPOINTER_TO_INT
		(gtk_object_get_data(GTK_OBJECT(text),
				     "EMinicard:field"));
	gtk_object_get(GTK_OBJECT(text),
		       "text", &string,
		       NULL);
	e_card_simple_set(e_minicard->simple,
			  type,
			  string);
	g_free(string);
}

static void
add_field (EMinicard *e_minicard, ECardSimpleField field)
{
	GnomeCanvasItem *new_item;
	GnomeCanvasGroup *group;
	ECardSimpleType type;
	EMinicardField *minicard_field;
	char *name;
	char *string;

	group = GNOME_CANVAS_GROUP( e_minicard );
	
	type = e_card_simple_type(e_minicard->simple, field);
	name = g_strdup_printf("%s:", e_card_simple_get_name(e_minicard->simple, field));
	string = e_card_simple_get(e_minicard->simple, field);

	new_item = e_minicard_label_new(group);
	gnome_canvas_item_set( new_item,
			       "width", e_minicard->width - 4.0,
			       "fieldname", name,
			       "field", string,
			       NULL );
	gtk_signal_connect(GTK_OBJECT(E_MINICARD_LABEL(new_item)->field),
			   "changed", GTK_SIGNAL_FUNC(field_changed), e_minicard);
	gtk_object_set_data(GTK_OBJECT(E_MINICARD_LABEL(new_item)->field),
			    "EMinicard:field",
			    GINT_TO_POINTER(field));

	minicard_field = g_new(EMinicardField, 1);
	minicard_field->field = field;
	minicard_field->label = new_item;

	e_minicard->fields = g_list_append( e_minicard->fields, minicard_field);
	e_canvas_item_move_absolute(new_item, 2, e_minicard->height);
	g_free(name);
	g_free(string);
}

static void
remodel( EMinicard *e_minicard )
{
	int count = 0;
	if (e_minicard->simple) {
		ECardSimpleField field;
		GList *list;
		char *file_as;

		if (e_minicard->header_text) {
			file_as = e_card_simple_get(e_minicard->simple, E_CARD_SIMPLE_FIELD_FILE_AS);
			gnome_canvas_item_set( e_minicard->header_text,
					       "text", file_as ? file_as : "",
					       NULL );
			g_free(file_as);
		}
		
		list = e_minicard->fields;
		e_minicard->fields = NULL;

		for(field = E_CARD_SIMPLE_FIELD_FULL_NAME; field != E_CARD_SIMPLE_FIELD_LAST && count < 5; field++) {
			EMinicardField *minicard_field = NULL;
			if (list)
				minicard_field = list->data;
			if (minicard_field && minicard_field->field == field) {
				GList *this_list = list;
				char *string;
				
				string = e_card_simple_get(e_minicard->simple, field);
				if (string && *string) {
					e_minicard->fields = g_list_append(e_minicard->fields, minicard_field);
					gtk_object_set(GTK_OBJECT(minicard_field->label),
						       "field", string,
						       NULL);
					count ++;
				} else {
					e_minicard_field_destroy(minicard_field);
				}
				list = g_list_remove_link(list, this_list);
				g_list_free_1(this_list);
				g_free(string);
			} else {
				char *string;
				string = e_card_simple_get(e_minicard->simple, field);
				if (string && *string) {
					add_field(e_minicard, field);
					count++;
				}
				g_free(string);
			}
		}
		
		g_list_foreach(list, (GFunc) e_minicard_field_destroy, NULL);
		g_list_free(list);
	}
}

static void
e_minicard_reflow( GnomeCanvasItem *item, int flags )
{
	EMinicard *e_minicard = E_MINICARD(item);
	if ( GTK_OBJECT_FLAGS( e_minicard ) & GNOME_CANVAS_ITEM_REALIZED ) {
		GList *list;
		gdouble text_height;
		gint old_height;
		
		old_height = e_minicard->height;

		gtk_object_get( GTK_OBJECT( e_minicard->header_text ),
				"text_height", &text_height,
				NULL );
		
		e_minicard->height = text_height + 10.0;
		
		gnome_canvas_item_set( e_minicard->header_rect,
				       "y2", text_height + 9.0,
				       NULL );
		
		for(list = e_minicard->fields; list; list = g_list_next(list)) {
			EMinicardField *field = E_MINICARD_FIELD(list->data);
			GnomeCanvasItem *item = field->label;
			gtk_object_get (GTK_OBJECT(item),
					"height", &text_height,
					NULL);
			e_canvas_item_move_absolute(item, 2, e_minicard->height);
			e_minicard->height += text_height;
		}
		e_minicard->height += 2;
		
		gnome_canvas_item_set( e_minicard->rect,
				       "y2", (double) e_minicard->height - 1,
				       NULL );
		
		gnome_canvas_item_set( e_minicard->rect,
				       "x2", (double) e_minicard->width - 1.0,
				       "y2", (double) e_minicard->height - 1.0,
				       NULL );
		gnome_canvas_item_set( e_minicard->header_rect,
				       "x2", (double) e_minicard->width - 3.0,
				       NULL );

		if (old_height != e_minicard->height)
			e_canvas_item_request_parent_reflow(item);
	}
}

char *
e_minicard_get_card_id (EMinicard *minicard)
{
	g_return_val_if_fail(minicard != NULL, NULL);
	g_return_val_if_fail(E_IS_MINICARD(minicard), NULL);

	if (minicard->card) {
		return e_card_get_id(minicard->card);
	} else {
		return "";
	}
}

int
e_minicard_compare (EMinicard *minicard1, EMinicard *minicard2)
{
	g_return_val_if_fail(minicard1 != NULL, 0);
	g_return_val_if_fail(E_IS_MINICARD(minicard1), 0);
	g_return_val_if_fail(minicard2 != NULL, 0);
	g_return_val_if_fail(E_IS_MINICARD(minicard2), 0);

	if (minicard1->card && minicard2->card) {
		char *file_as1, *file_as2;
		gtk_object_get(GTK_OBJECT(minicard1->card),
			       "file_as", &file_as1,
			       NULL);
		gtk_object_get(GTK_OBJECT(minicard2->card),
			       "file_as", &file_as2,
			       NULL);
		if (file_as1 && file_as2)
			return strcasecmp(file_as1, file_as2);
		if (file_as1)
			return -1;
		if (file_as2)
			return 1;
		return strcmp(e_minicard_get_card_id(minicard1), e_minicard_get_card_id(minicard2));
	} else {
		return 0;
	}
}