/*
 * about:profiles
 *
 * Copyright (C) 2017  Patrick McDermott
 *
 * This file is part of Marquee.
 *
 * Marquee 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 3 of the License, or
 * (at your option) any later version.
 *
 * Marquee 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 Marquee.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <string.h>

#include <glib.h>
#include <webkit2/webkit2.h>

#include "../../application.h"
#include "../../config/profiles.h"
#include "../../utils/html.h"
#include "../../utils/profile-icon.h"
#include "../about.h"
#include "paths.h"

static const gchar *styles =
	"div.profile > svg {\n"
		"width: 64px;\n"
		"height: 64px;\n"
		"border: 1px solid transparent;\n"
		"border-radius: 3px;\n"
		"padding: 6px;\n"
		"transition: all 250ms ease-in-out 0s;\n"
		"-moz-transition: all 250ms ease-in-out 0s;\n"
		"-wekbit-transition: all 250ms ease-in-out 0s;\n"
		"-o-transition: all 250ms ease-in-out 0s;\n"
	"}\n"
	"div.profile > label {\n"
		"display: inline;\n"
		"border: 1px solid #9F9F9F;\n"
		"border-radius: 3px;\n"
		"background-color: #DFDFDF;\n"
		"padding: 6px;\n"
		"color: #000000;\n"
		"transition: all 250ms ease-in-out 0s;\n"
		"-moz-transition: all 250ms ease-in-out 0s;\n"
		"-wekbit-transition: all 250ms ease-in-out 0s;\n"
		"-o-transition: all 250ms ease-in-out 0s;\n"
	"}\n"
	"div.profile > label:hover {\n"
		"border: 1px solid #4F8FCF;\n"
		"outline: 0;\n"
		"background-color: #EFEFEF;\n"
	"}\n"
	"div.profile {\n"
		"background-color: #CFCFCF;\n"
		"border: 1px solid #9F9F9F;\n"
		"border-radius: 3px;\n"
	"}\n"
	"div.profile > input[type=radio] {\n"
		"display: none;\n"
	"}\n"
	"div.profile > span {\n"
		"display: inline;\n"
		"position: absolute;\n"
	"}\n"
	"div.profile > span.current {\n"
		"font-weight: bold;\n"
	"}\n"
	"div.profile > input[type=text] {\n"
		"display: none;\n"
		"position: absolute;\n"
	"}\n"
	"div.profile > label {\n"
		"display: inline;\n"
	"}\n"
	"div.profile > label > span {\n"
		"margin: 0;\n"
	"}\n"
	"div.profile > input[type=submit]:last-child {\n"
		"display: none;\n"
	"}\n"
	"div.profile > input[type=radio]:checked ~ svg {\n"
		"border-color: #9F9F9F;\n"
		"background-color: #DFDFDF;\n"
	"}\n"
	"div.profile > input[type=radio]:checked ~ svg:hover {\n"
		"border-color: #4F8FCF;\n"
		"background-color: #EFEFEF;\n"
	"}\n"
	"div.profile > input[type=radio]:checked ~ span {\n"
		"display: none;\n"
	"}\n"
	"div.profile > input[type=radio]:checked ~ input[type=text] {\n"
		"display: inline;\n"
	"}\n"
	"div.profile > input[type=radio]:checked ~ label {\n"
		"display: none;\n"
	"}\n"
	"div.profile > input[type=radio]:checked ~ "
		"input[type=submit]:last-child {\n"
		"display: inline;\n"
	"}\n"
	"div.profile > label, div.profile > input[type=submit] {\n"
		"float: right;\n"
	"}\n"
	;

static gchar *
generate_div(MqProfiles *profiles, gchar *id)
{
	gchar    *name;
	gchar    *color;
	gchar    *editing_str;
	gchar    *name_str;
	gchar    *default_str;
	gchar    *delete_str;
	gchar    *save_str;
	gchar    *div;
	gchar    *current;
	gboolean  is_current;

	/* name is freed by the mq_html_container() call to generate the name
	 * <span>. */
	if (id) {
		name = mq_profiles_get_name(profiles, id);
		color = mq_profiles_get_color(profiles, id);
	} else {
		name = g_strdup("New Profile");
		color = g_strdup("#00ff00");
	}

	editing_str = g_strconcat("editing_", id, NULL);
	name_str    = g_strconcat("name_",    id, NULL);
	default_str = g_strconcat("default_", id, NULL);
	delete_str  = g_strconcat("delete_",  id, NULL);
	save_str    = g_strconcat("save_",    id, NULL);

	current = mq_profiles_get_current(profiles);
	is_current = (g_strcmp0(id, current) == 0);
	g_free(current);

	div = mq_html_container("div", "profile",
		mq_html_input_radio("editing", editing_str, id, NULL,
			id == NULL),
		mq_profile_icon_new(color),
		mq_html_container("span", is_current ? "current" : NULL, name,
			NULL),
		mq_html_input_text(name_str, NULL, name),
		mq_html_submit(default_str, "Make Default",
			!id || mq_profiles_is_default(profiles, id)),
		mq_html_submit(delete_str, "Delete", FALSE),
		mq_html_label(editing_str, "Edit", FALSE),
		mq_html_submit(save_str, "Save", FALSE),
		NULL);

	g_free(editing_str);
	g_free(name_str);
	g_free(default_str);
	g_free(delete_str);
	g_free(save_str);

	g_free(color);

	return div;
}

static gchar *
generate_document(MqProfiles *profiles, gboolean adding)
{
	gchar **ids;
	gsize   length;
	gchar **divs;
	gsize   i;
	gchar  *cp_res;
	gchar  *document;

	ids = mq_profiles_get_profiles(profiles, &length);
	divs = g_new(gchar *, length + (adding ? 1 : 0) + 1);
	for (i = 0; i < length; ++i) {
		divs[i] = generate_div(profiles, ids[i]);
	}
	if (adding) {
		divs[i++] = generate_div(profiles, NULL);
	}
	divs[i] = NULL;
	g_strfreev(ids);

	cp_res = g_strdup(
		"<script src=\"mq-about:resources/flexi-color-picker/"
			"colorpicker.js\"></script>\n"
		);

	document = mq_html_document("Profiles", styles, cp_res,
		mq_html_form_v("add", "Add Profile", NULL, NULL, divs),
		NULL);

	g_free(cp_res);

	return document;
}

static void
edit_profiles(MqProfiles *profiles, GHashTable *query)
{
	GList *keys;
	GList *key;
	gchar *id;
	gchar *input_key;

	keys = g_hash_table_get_keys(query);

	for (key = keys; key; key = key->next) {
		if (g_str_has_prefix(key->data, "save_")) {
			id = (gchar *) key->data + strlen("save_");
			if (id[0]) {  /* Edit existing profile. */
				input_key = g_strconcat("name_", id, NULL);
				mq_profiles_set_name(profiles, id,
					g_hash_table_lookup(query, input_key));
				g_free(input_key);
			} else {
				input_key = g_strconcat("name_", id, NULL);
				mq_profiles_insert(profiles,
					g_hash_table_lookup(query, input_key),
					"#00ff00");
				g_free(input_key);
			}
		} else if (g_str_has_prefix(key->data, "delete_")) {
			id = (gchar *) key->data + strlen("delete_");
			if (id[0]) {  /* Don't remove new profile. */
				mq_profiles_remove(profiles, id);
			}
		} else if (g_str_has_prefix(key->data, "default_")) {
			id = (gchar *) key->data + strlen("default_");
			if (id[0]) {  /* Don't set new profile as default. */
				mq_profiles_set_default(profiles, id);
			}
		}
	}

	g_list_free(keys);

	mq_profiles_save(profiles);
}

void
mq_about_profiles_response(MqApplication *application,
	GHashTable *query, WebKitURISchemeRequest *request)
{
	MqProfiles  *profiles;

	profiles = mq_application_get_profiles(application);

	if (!query) {
		mq_about_response(request, generate_document(profiles, FALSE));
	} else if (g_hash_table_lookup(query, "add")) {
		mq_about_response(request, generate_document(profiles, TRUE));
	} else {
		edit_profiles(profiles, query);
		mq_about_redirect(request, "mq-about:profiles");
	}
}