/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */

/*
 * Copyright (C) 2017 Red Hat, Inc.
 *
 * 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; 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 program; if not, see <http://www.gnu.org/licenses/>.
 */

#include "config.h"

#include "backends/meta-monitor-manager-private.h"
#include "compositor/meta-plugin-manager.h"
#include "core/main-private.h"
#include "meta/main.h"
#include "tests/meta-backend-test.h"
#include "tests/meta-monitor-manager-test.h"
#include "wayland/meta-wayland.h"

#define ALL_TRANSFORMS ((1 << (META_MONITOR_TRANSFORM_FLIPPED_270 + 1)) - 1)

static gboolean
run_tests (gpointer data)
{
  MetaBackend *backend = meta_get_backend ();
  MetaSettings *settings = meta_backend_get_settings (backend);
  gboolean ret;

  meta_settings_override_experimental_features (settings);

  meta_settings_enable_experimental_feature (
    settings,
    META_EXPERIMENTAL_FEATURE_SCALE_MONITOR_FRAMEBUFFER);

  ret = g_test_run ();

  meta_quit (ret != 0);

  return FALSE;
}

static void
meta_test_headless_start (void)
{
  MetaBackend *backend = meta_get_backend ();
  MetaMonitorManager *monitor_manager =
    meta_backend_get_monitor_manager (backend);

  g_assert_cmpint ((int) monitor_manager->n_modes,
                   ==,
                   0);
  g_assert_cmpint ((int) monitor_manager->n_outputs,
                   ==,
                   0);
  g_assert_cmpint ((int) monitor_manager->n_crtcs,
                   ==,
                   0);
  g_assert_null (monitor_manager->monitors);
  g_assert_null (monitor_manager->logical_monitors);

  g_assert_cmpint (monitor_manager->screen_width,
                   ==,
                   META_MONITOR_MANAGER_MIN_SCREEN_WIDTH);
  g_assert_cmpint (monitor_manager->screen_height,
                   ==,
                   META_MONITOR_MANAGER_MIN_SCREEN_HEIGHT);
}

static void
meta_test_headless_monitor_getters (void)
{
  MetaDisplay *display;
  MetaScreen *screen;
  int index;

  display = meta_get_display ();
  screen = display->screen;

  index = meta_screen_get_monitor_index_for_rect (screen,
                                                  &(MetaRectangle) { 0 });
  g_assert_cmpint (index, ==, -1);
}

static void
meta_test_headless_monitor_connect (void)
{
  MetaBackend *backend = meta_get_backend ();
  MetaMonitorManager *monitor_manager =
    meta_backend_get_monitor_manager (backend);
  MetaMonitorManagerTest *monitor_manager_test =
    META_MONITOR_MANAGER_TEST (monitor_manager);
  MetaMonitorTestSetup *test_setup;
  MetaCrtcMode **modes;
  MetaCrtc **possible_crtcs;
  GList *logical_monitors;
  ClutterActor *stage;

  test_setup = g_new0 (MetaMonitorTestSetup, 1);
  test_setup->n_modes = 1;
  test_setup->modes = g_new0 (MetaCrtcMode, test_setup->n_modes);
  test_setup->modes[0] = (MetaCrtcMode) {
    .mode_id = 1,
    .width = 1024,
    .height = 768,
    .refresh_rate = 60.0
  };

  test_setup->n_crtcs = 1;
  test_setup->crtcs = g_new0 (MetaCrtc, test_setup->n_crtcs);
  test_setup->crtcs[0] = (MetaCrtc) {
    .crtc_id = 1,
    .all_transforms = ALL_TRANSFORMS
  };

  modes = g_new0 (MetaCrtcMode *, 1);
  modes[0] = &test_setup->modes[0];

  possible_crtcs = g_new0 (MetaCrtc *, 1);
  possible_crtcs[0] = &test_setup->crtcs[0];

  test_setup->n_outputs = 1;
  test_setup->outputs = g_new0 (MetaOutput, test_setup->n_outputs);
  test_setup->outputs[0] = (MetaOutput) {
    .winsys_id = 1,
    .name = g_strdup ("DP-1"),
    .vendor = g_strdup ("MetaProduct's Inc."),
    .product = g_strdup ("MetaMonitor"),
    .serial = g_strdup ("0x987654"),
    .preferred_mode = modes[0],
    .n_modes = 1,
    .modes = modes,
    .n_possible_crtcs = 1,
    .possible_crtcs = possible_crtcs,
    .backlight = -1,
    .connector_type = META_CONNECTOR_TYPE_DisplayPort
  };

  meta_monitor_manager_test_emulate_hotplug (monitor_manager_test, test_setup);

  logical_monitors =
    meta_monitor_manager_get_logical_monitors (monitor_manager);
  g_assert_cmpint (g_list_length (logical_monitors), ==, 1);

  g_assert_cmpint (monitor_manager->screen_width, ==, 1024);
  g_assert_cmpint (monitor_manager->screen_height, ==, 768);

  stage = meta_backend_get_stage (backend);
  g_assert_cmpint (clutter_actor_get_width (stage), ==, 1024);
  g_assert_cmpint (clutter_actor_get_height (stage), ==, 768);
}

static MetaMonitorTestSetup *
create_headless_test_setup (void)
{
  return g_new0 (MetaMonitorTestSetup, 1);
}

static void
init_tests (int argc, char **argv)
{
  g_test_init (&argc, &argv, NULL);
  g_test_bug_base ("http://bugzilla.gnome.org/show_bug.cgi?id=");

  MetaMonitorTestSetup *initial_test_setup;

  initial_test_setup = create_headless_test_setup ();
  meta_monitor_manager_test_init_test_setup (initial_test_setup);

  g_test_add_func ("/headless-start/start", meta_test_headless_start);
  g_test_add_func ("/headless-start/monitor-getters",
                   meta_test_headless_monitor_getters);
  g_test_add_func ("/headless-start/connect",
                   meta_test_headless_monitor_connect);
}

int
main (int argc, char *argv[])
{
  init_tests (argc, argv);

  meta_plugin_manager_load ("default");

  meta_override_compositor_configuration (META_COMPOSITOR_TYPE_WAYLAND,
                                          META_TYPE_BACKEND_TEST);
  meta_wayland_override_display_name ("mutter-test-display");

  meta_init ();
  meta_register_with_session ();

  g_idle_add (run_tests, NULL);

  return meta_run ();
}