#include <stdio.h>
#include <gtk-4.0/gtk/gtk.h>
#include "cold.h"

void print_text(GtkWidget *widget, gpointer data) {g_print (data);}

GtkWidget *get_a_space_test_image(){
  GtkWidget *image;
  image = GTK_WIDGET(get_scrolled_gl_area());
  image = gtk_picture_new_for_filename ("/home/jean/01/Gtk4/images/aXoris.png");
  image = gtk_picture_new_for_filename ("/home/jean/01/Gtk4/images/gg sketch.png");
  image = gtk_picture_new_for_filename ("/home/jean/01/Gtk4/images/E coli.png");
  image = gtk_picture_new_for_filename ("/home/jean/01/Gtk4/images/E coli resized.png");
  image = gtk_picture_new_for_filename ("/home/jean/01/Gtk4/Getting_Started_with_GTK/E coli by David S. Goodsell (2009).png");
  return image;
}

GtkWidget *get_scroll_speed(){
  GtkAdjustment *speed_adjust = gtk_adjustment_new (0, 0, 100, 1, 0, 0);
  GtkWidget *scroll_speed = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, speed_adjust);
  return scroll_speed;
}

//  TODO  cliquer sur "RUN"  -->  affiche "STOP"  (et inversement)
GtkBox *get_RUN_STOP_box(){
  GtkBox *RUN_STOP_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2)); // spacing = 2

  GtkWidget *RUN_Label = GTK_WIDGET (gtk_label_new (NULL)); //  "RUN"));
  const char *str = "    RUN\n   STOP";
  const char *format = "<span style=\"oblique\">\%s</span>";
  char *markup;

  markup = g_markup_printf_escaped (format, str);
  gtk_label_set_markup (GTK_LABEL (RUN_Label), markup); //  Sets the labels text and attributes from markup.
  g_free (markup);

  gtk_label_set_max_width_chars (GTK_LABEL(RUN_Label), 12);
  gtk_label_set_wrap (GTK_LABEL(RUN_Label), TRUE);
  gtk_label_set_xalign (GTK_LABEL(RUN_Label), 0.5);  //  xalign value, between 0 and 1
  gtk_label_set_yalign (GTK_LABEL(RUN_Label), 0.5);
  gtk_label_set_selectable (GTK_LABEL(RUN_Label), FALSE); //  default = FALSE
  gtk_label_set_single_line_mode (GTK_LABEL(RUN_Label), TRUE); //  default = TRUE
                                                               //
  gtk_box_append (RUN_STOP_box, RUN_Label);
  return RUN_STOP_box;
}

GtkBox *get_STEP_by_STEP_box(){
  GtkBox *STEP_by_STEP_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0));
  GtkWidget *STEP_by_STEP_Label = GTK_WIDGET (gtk_label_new ("ONE\nSTEP"));
  gtk_box_append (STEP_by_STEP_box, STEP_by_STEP_Label);
  return STEP_by_STEP_box;
}

GtkBox *get_ZOOM_box(){
  GtkBox *ZOOM_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0));
  GtkWidget *ZOOM_Label = GTK_WIDGET (gtk_label_new ("ZOOM\n    ---\n(space\nstruct.)"));
  gtk_box_append (ZOOM_box, ZOOM_Label);
  return ZOOM_box;
}

GtkBox *get_XYZ_box(){
  GtkBox *XYZ_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2)); // spacing = 2
  //  GtkWidget *scale_X = gtk_scale_button_new (0, 360, 10, NULL);  <  à étudier
  //                    (double min, double max, double step, const char** icons)
  GtkAdjustment *X_adjust = gtk_adjustment_new (0, 0, 380, 1, 0, 0);
  GtkAdjustment *Y_adjust = gtk_adjustment_new (0, 0, 380, 1, 0, 0);
  GtkAdjustment *Z_adjust = gtk_adjustment_new (0, 0, 380, 1, 0, 0);
  GtkWidget *scroll_X = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, X_adjust);
  GtkWidget *scroll_Y = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, Y_adjust);
  GtkWidget *scroll_Z = gtk_scrollbar_new (GTK_ORIENTATION_VERTICAL, Z_adjust);

  gtk_box_append (XYZ_box, scroll_X);
  gtk_box_append (XYZ_box, scroll_Y);
  gtk_box_append (XYZ_box, scroll_Z);

//  gtk_box_set_baseline_position (XYZ_box, GTK_BASELINE_POSITION_BOTTOM);

  return XYZ_box;
}

GtkBox *get_ELAPSED_TIME_box(){
  GtkBox *ELAPSED_TIME_box = GTK_BOX(gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 2));

//  GtkProgressBar *get_simulation_time_extent_buffer(){
  GtkProgressBar *buffer = GTK_PROGRESS_BAR (gtk_progress_bar_new ());
  gtk_progress_bar_set_text (buffer, "<---  [buffer]  (simulation extent time)  --->");
  gtk_progress_bar_set_show_text (buffer, TRUE);

  gtk_box_append (ELAPSED_TIME_box, GTK_WIDGET(buffer));
  return ELAPSED_TIME_box;
}

GtkProgressBar *get_simulation_time_extent_buffer(){

  GtkProgressBar *buffer = GTK_PROGRESS_BAR (gtk_progress_bar_new ());
  gtk_progress_bar_set_text (buffer, "<---  [buffer]  (simulation extent time)  --->");
  gtk_progress_bar_set_show_text (buffer, TRUE);

  return buffer;
}

GtkScrolledWindow *get_scrolled_gl_area(){
  GtkScrolledWindow *scrolled = GTK_SCROLLED_WINDOW(gtk_scrolled_window_new());
  gtk_scrolled_window_set_min_content_width  (scrolled, W_IMAGE);
  gtk_scrolled_window_set_min_content_height (scrolled, H_IMAGE);
//  GtkAdjustment *width  = gtk_adjustment_new (600, 300, 1000, 1, 1, 1000);
//  GtkAdjustment *height = gtk_adjustment_new (600, 300, 1000, 1, 1, 1000);
    //      (value, lower, upper, step_increment, page_increment, page_size)
//  GtkWidget *GLarea = gtk_gl_area_new();
//  gtk_scrolled_window_set_child (scrolled, GLarea);
//  https://docs.gtk.org/gtk4/class.GLArea.html
  return scrolled;
}





/*---------------------------------------------------------------------------*/



GtkWidget *get_edit_space_page_new(){
  GtkWidget *xxx_grid = gtk_grid_new();
  return xxx_grid;
}

GtkWidget *get_edit_rules_page_new(){
  GtkWidget *xxx_grid = gtk_grid_new();
  return xxx_grid;
}

GtkWidget *get_edit_measures_page_new(){
  GtkWidget *measures_grid = gtk_grid_new();
  return measures_grid;
}

GtkWidget *get_edit_results_page_new(){
  GtkWidget *xxx_grid = gtk_grid_new();
  return xxx_grid;
}

GtkWidget *get_edit_discuss_page_new(){
  GtkWidget *xxx_grid = gtk_grid_new();
  return xxx_grid;
}

GtkWidget *get_edit_help_page_new(){
  GtkWidget *xxx_grid = gtk_grid_new();
  return xxx_grid;
}

GtkWidget *get_run_measures_page_new(){
  GtkWidget *measures_grid = gtk_grid_new();
  gtk_grid_attach (GTK_GRID  (measures_grid), gtk_button_new_with_label ("movements"), 0, 0, 1, 1);
  gtk_grid_attach (GTK_GRID  (measures_grid), gtk_button_new_with_label ("transports"), 1, 0, 1, 1);
  gtk_grid_attach (GTK_GRID  (measures_grid), gtk_button_new_with_label ("transformations"), 2, 0, 1, 1);
  gtk_grid_attach (GTK_GRID  (measures_grid), gtk_button_new_with_label ("objects"), 0, 1, 1, 1);
  gtk_grid_attach (GTK_GRID  (measures_grid), gtk_button_new_with_label ("situations"), 1, 1, 1, 1);
  return measures_grid;
}

GtkWidget *get_run_results_page_new(){
  GtkWidget *results_grid = gtk_grid_new();
  gtk_grid_attach (GTK_GRID(results_grid), gtk_button_new_with_label ("Repartitions"), 0, 0, 1, 1);
  gtk_grid_attach (GTK_GRID(results_grid), gtk_button_new_with_label ("Correlations"), 0, 1, 1, 1);
  gtk_grid_attach (GTK_GRID(results_grid), gtk_button_new_with_label ("Evolutions"), 0, 2, 1, 1);
  return results_grid;
}

GtkWidget *get_run_discuss_page_new(){
  GtkWidget *discuss_grid = gtk_grid_new();
  gtk_grid_attach (GTK_GRID (discuss_grid), gtk_button_new_with_label ("Interpretations"), 0, 0, 1, 1);
  gtk_grid_attach (GTK_GRID (discuss_grid), gtk_button_new_with_label ("Discussions"), 0, 1, 1, 1);
  return discuss_grid;
}

GtkWidget *get_run_help_page_new(){
  GtkWidget *help_grid = gtk_grid_new();
  gtk_grid_attach (GTK_GRID (help_grid), gtk_button_new_with_label ("Can I help you ?"), 0, 0, 1, 1);
  return help_grid;
}


GtkWidget *get_run_rules_page_new(){
  GtkWidget *rules_grid = gtk_grid_new();
  GtkWidget *hpaned = gtk_paned_new (GTK_ORIENTATION_HORIZONTAL);
  gtk_grid_attach (GTK_GRID (rules_grid), hpaned, 0, 0, 1, 1);

  GtkWidget *frame1 = gtk_frame_new ("hello ?");
  GtkWidget *frame2 = gtk_frame_new ("it's me !");

  GtkWidget *grid_3 = gtk_grid_new();
  gtk_frame_set_child ( GTK_FRAME(frame2), grid_3);

  gtk_paned_set_start_child (GTK_PANED(hpaned), GTK_WIDGET (frame1));
  gtk_paned_set_end_child (GTK_PANED(hpaned), GTK_WIDGET (frame2));
  gtk_widget_set_size_request (hpaned, W, H);
//  gtk_widget_set_size_request (frame1, 0, H); //  <  utile seulement pour la largeur min/max
//  gtk_widget_set_size_request (frame2, 50, 100);

//  gtk_grid_attach (GTK_GRID (rules_grid), hpaned, 0, 0, 1, 1);
  gtk_grid_attach (GTK_GRID (grid_3), gtk_button_new_with_label ("in the right pane"), 0, 0, 1, 1);
  return rules_grid;
}


GtkWidget *get_run_space_page_new(){

  GtkWidget *space_grid = gtk_grid_new();
//  attach either : get_ELAPSED_TIME_box()   or   get_simulation_time_extent_buffer()
//  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_ELAPSED_TIME_box()), 0, 0, 1, 1);
  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_simulation_time_extent_buffer()), 0, 0, 1, 1);
  gtk_grid_attach (GTK_GRID(space_grid), get_a_space_test_image(), 0, 1, 1, 3);
  gtk_grid_attach (GTK_GRID(space_grid), get_objects_and_situations_horizontal_pane(), 0, 4, 1, 1);
  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_RUN_STOP_box()), 1, 0, 1, 1);
  gtk_grid_attach (GTK_GRID(space_grid), get_scroll_speed(), 1, 1, 1, 1);
  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_STEP_by_STEP_box()), 1, 2, 1, 1);
  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_XYZ_box()), 1, 3, 1, 1);
  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(get_ZOOM_box()), 1, 4, 1, 1);
//  How to use gtk_separators ?
//  gtk_grid_attach (GTK_GRID(space_grid), GTK_WIDGET(gtk_separator_new (GTK_ORIENTATION_HORIZONTAL)), 1, 1, 1, 1);


  return space_grid;
}

void window_bar(GtkWindow *window, char *title){
  GtkWidget *titlebar = gtk_header_bar_new();
  gtk_window_set_title (window, title);
  gtk_window_set_titlebar (window, titlebar);   //   header_bar
//  GtkWidget my_window_controls = *gtk_window_controls_new (GTK_PACK_END); //  _START
//  gtk_window_controls_set_decoration_layout (GTK_WINDOW_CONTROLS(my_window_controls), NULL); //  const char* layout);
}

void activate (GtkApplication *app, gpointer user_data) {
  GtkWindow *window = GTK_WINDOW (gtk_application_window_new (app));
  window_bar (window, "E coli   (with permission from David S. Goodsell, 2009)");

  GtkNotebook *run_notebook = GTK_NOTEBOOK(gtk_notebook_new());
  gtk_notebook_set_tab_pos (GTK_NOTEBOOK(run_notebook), GTK_POS_TOP);  //   GTK_POS_LEFT

  gtk_notebook_append_page (run_notebook, get_run_space_page_new(),   gtk_label_new ("space"));
  gtk_notebook_append_page (run_notebook, get_run_rules_page_new(),   gtk_label_new ("rules"));
  gtk_notebook_append_page (run_notebook, get_run_measures_page_new(),gtk_label_new ("measures"));
  gtk_notebook_append_page (run_notebook, get_run_results_page_new(), gtk_label_new ("results"));
  gtk_notebook_append_page (run_notebook, get_run_discuss_page_new(), gtk_label_new ("interpret"));
  gtk_notebook_append_page (run_notebook, get_run_help_page_new(),    gtk_label_new ("help"));

  GtkNotebook *edit_notebook = GTK_NOTEBOOK(gtk_notebook_new());
  gtk_notebook_set_tab_pos (GTK_NOTEBOOK(edit_notebook), GTK_POS_TOP);  //   GTK_POS_LEFT

  gtk_notebook_append_page (edit_notebook, get_edit_space_page_new(),   gtk_label_new ("space"));
  gtk_notebook_append_page (edit_notebook, get_edit_rules_page_new(),   gtk_label_new ("rules"));
  gtk_notebook_append_page (edit_notebook, get_edit_measures_page_new(),gtk_label_new ("measures"));
  gtk_notebook_append_page (edit_notebook, get_edit_results_page_new(), gtk_label_new ("results"));
  gtk_notebook_append_page (edit_notebook, get_edit_discuss_page_new(), gtk_label_new ("interpret"));
  gtk_notebook_append_page (edit_notebook, get_edit_help_page_new(),    gtk_label_new ("help"));

  GtkWidget *run_xor_edit_horizontal_pane = gtk_paned_new (GTK_ORIENTATION_HORIZONTAL);
  GtkWidget *frame_edits = gtk_frame_new ("Situations");   //  facilitate each situation identification
  gtk_widget_set_size_request (run_xor_edit_horizontal_pane, W_IMAGE, H_STYLES_PANE);
  gtk_widget_set_size_request (GTK_WIDGET (frame_edits), 0, H_STYLES_PANE); //  <  utile pour la largeur min/max
  gtk_paned_set_start_child (GTK_PANED(run_xor_edit_horizontal_pane), GTK_WIDGET (run_notebook));
  gtk_paned_set_end_child (GTK_PANED(run_xor_edit_horizontal_pane), GTK_WIDGET (edit_notebook));
  gtk_paned_set_position (GTK_PANED (run_xor_edit_horizontal_pane), W_IMAGE + 90);  //  ! WARNING !  '90' is AD HOC
  gtk_window_set_child (window, GTK_WIDGET(run_xor_edit_horizontal_pane));
  gtk_window_present (GTK_WINDOW (window));
}

void click_print_do (GtkWindow *window, GtkWidget *grid,
                            char *label, char *text, int x, int y, int w, int h){
  GtkWidget *button = gtk_button_new_with_label (label);
  gtk_grid_attach (GTK_GRID (grid), button, x, y, w, h);
  g_signal_connect (button, "clicked", G_CALLBACK (print_text), text);
  if (window)
    g_signal_connect_swapped (button, "clicked", G_CALLBACK (gtk_window_destroy), window);
}

/*----------------------------------------------------------------------------*/

/*  GtkBox       GtkGrid     GtkRevealer    GtkStack
 *  GtkOverlay   GtkPaned    GtkExpander    GtkFixed  */

/* GtkBox
 * int spacing = 8;
 * box = gtk_box_new (0, spacing);
 * 0 = GTK_ORIENTATION_HORIZONTAL, 1 = GTK_ORIENTATION_VERTICAL
 * gtk_widget_set_halign (box, GTK_ALIGN_FILL);
 * gtk_widget_set_valign (box, GTK_ALIGN_CENTER); *  START  CENTER  END  FILL *
 * gtk_window_set_child (GTK_WINDOW (window), box);
 * gtk_box_append (GTK_BOX (box), button); */

/*  grid = gtk_grid_new ();
    gtk_window_set_child (GTK_WINDOW (window), grid);
    button = gtk_button_new_with_label (" I ");               n fois
    gtk_grid_attach (GTK_GRID (grid), button, 0, 0, 1, 1);    n fois  */

/*
 * gtk_paned_new (GTK_ORIENTATION_VERTICAL or GTK_ORIENTATION_VERTICAL)
 * GtkPaned has two panes, arranged either horizontally or vertically.
 * The division between the two panes is adjustable by the user by dragging a handle.
 * Child widgets are added to the panes of the widget
 *                         with gtk_paned_pack1() and gtk_paned_pack2().
 */

/*
 * GtkWidget* gtk_box_new (GtkOrientation orientation, gint spacing)
 */





/* TODO or NOT TODO
 *
 *   GtkRevealer *revealer = gtk_revealer_new();
 *   gtk_revealer_set_child (GTK_ ? (revealer), box);
 *   gtk_revealer_set_transition_type (revealer, GTK_REVEALER_TRANSITION_TYPE_SLIDE_DOWN);
 *
 */

//  GtkWidget *overlay  = gtk_overlay_new();
//  gtk_overlay_set_buildable_id (GTK_BUILDABLE(overlay), "overlay id");
//  printf("overlay  %s\n", gtk_buildable_get_buildable_id (GTK_BUILDABLE(overlay)));

//  how do I attach a widget to a page ?

//  https://stackoverflow.com/questions/20122232/gtklistc-code-how-to-get-the-selection-of-a-gtklist  <  TO CHECK