/* vim: set sw=3 ts=3 sts=3 expandtab: */
#include "ecdb.h"

typedef struct Config_Data Config_Data;
struct Config_Data
{
   char ** array;
   unsigned int count;
};

static void destroy_cb(Ewl_Widget *w, void *event, void *data);
static void conf_clicked_cb(Ewl_Widget *w, void *event, void *data);
static void scale_cb(Ewl_Widget *w, void *event, void *data);
static void fps_cb(Ewl_Widget *w, void *event, void *data);
static void engine_cb(Ewl_Widget *w, void *event, void *data);
static void theme_cb(Ewl_Widget *w, void *event, void *data);
static Config_Data *theme_data_init(void);
static Config_Data *engine_data_init(void);
static int theme_data_return_active(Config_Data *data);
static int engine_data_return_active(Config_Data *data);
static unsigned int model_data_count(void *data);
static void *model_data_fetch(void *data, unsigned int row, unsigned int col);

static Ewl_Widget *conf_win = NULL;

void
ecdb_config_dialog_show(void)
{
   Ewl_Widget *o, *l;
   Ewl_Widget *border_box, *hbox, *main_box;
   Ewl_Widget *combo;
   Ewl_Model *model;
   Ewl_View *view;
   Config_Data *data;

   /* Only show one config window */
   if (conf_win)
      return;

   conf_win = ewl_dialog_new();
   ewl_dialog_action_position_set(EWL_DIALOG(conf_win), EWL_POSITION_BOTTOM);
   ewl_window_title_set(EWL_WINDOW(conf_win), "ECDB Configuration");
   ewl_window_name_set(EWL_WINDOW(conf_win), "ECDB");
   ewl_window_class_set(EWL_WINDOW(conf_win), "ECDB");
   ewl_window_leader_foreign_set(EWL_WINDOW(conf_win),
                                                EWL_EMBED_WINDOW(em->xwin));
   ewl_callback_append(conf_win, EWL_CALLBACK_DELETE_WINDOW, destroy_cb, NULL);
   ewl_dialog_has_separator_set(EWL_DIALOG(conf_win), 1);
   ewl_object_fill_policy_set(EWL_OBJECT(conf_win), EWL_FLAG_FILL_NONE);
   ewl_widget_show(conf_win);

   /* the main_box contain the border_boxes */
   ewl_dialog_active_area_set(EWL_DIALOG(conf_win), EWL_POSITION_TOP);
   main_box = ewl_vbox_new();
   ewl_container_child_append(EWL_CONTAINER(conf_win), main_box);
   ewl_object_fill_policy_set(EWL_OBJECT(main_box), EWL_FLAG_ALIGN_CENTER);
   ewl_widget_show(main_box);

   /* Setup and show the stock icons */
   ewl_dialog_active_area_set(EWL_DIALOG(conf_win), EWL_POSITION_BOTTOM);

   o = ewl_button_new();
   ewl_stock_type_set(EWL_STOCK(o), EWL_STOCK_CANCEL);
   ewl_container_child_append(EWL_CONTAINER(conf_win), o);
   ewl_callback_append(o, EWL_CALLBACK_CLICKED, conf_clicked_cb, conf_win);
   ewl_widget_show(o);

   o = ewl_button_new();
   ewl_stock_type_set(EWL_STOCK(o), EWL_STOCK_APPLY);
   ewl_container_child_append(EWL_CONTAINER(conf_win), o);
   ewl_callback_append(o, EWL_CALLBACK_CLICKED, conf_clicked_cb, conf_win);
   ewl_widget_show(o);

   o = ewl_button_new();
   ewl_stock_type_set(EWL_STOCK(o), EWL_STOCK_OK);
   ewl_container_child_append(EWL_CONTAINER(conf_win), o);
   ewl_callback_append(o, EWL_CALLBACK_CLICKED, conf_clicked_cb, conf_win);
   ewl_widget_show(o);

   /* Graphics */
   border_box = ewl_border_new();
   ewl_border_label_set(EWL_BORDER(border_box), "Graphics");
   ewl_container_child_append(EWL_CONTAINER(main_box), border_box);
   ewl_widget_show(border_box);

   /* Scale */
   hbox = ewl_grid_new();
   ewl_container_child_append(EWL_CONTAINER(border_box), hbox);
   ewl_object_fill_policy_set(EWL_OBJECT(hbox), EWL_FLAG_FILL_FILL);
   ewl_grid_column_preferred_w_use(EWL_GRID(hbox), 1);
   ewl_widget_show(hbox);

   o = ewl_label_new();
   ewl_label_text_set(EWL_LABEL(o), "Scale Factor:");
   ewl_container_child_append(EWL_CONTAINER(hbox), o);
   ewl_object_fill_policy_set(EWL_OBJECT(o), EWL_FLAG_FILL_NONE);
   ewl_object_alignment_set(EWL_OBJECT(o), EWL_FLAG_ALIGN_LEFT);
   ewl_widget_show(o);

   l = ewl_label_new();
   ewl_container_child_append(EWL_CONTAINER(hbox), l);
   ewl_object_fill_policy_set(EWL_OBJECT(l), EWL_FLAG_FILL_NONE);
   ewl_widget_show(l);

   o = ewl_hseeker_new();
   ewl_range_minimum_value_set(EWL_RANGE(o), 0.0);
   ewl_range_maximum_value_set(EWL_RANGE(o), 2.0);
   ewl_range_step_set(EWL_RANGE(o), 0.1);
   ewl_range_value_set(EWL_RANGE(o), em->scalef);
   ewl_container_child_append(EWL_CONTAINER(border_box), o);
   ewl_callback_append(o, EWL_CALLBACK_VALUE_CHANGED, scale_cb, l);
   scale_cb(o, NULL, NULL);
   ewl_widget_show(o);

   /* FPS */
   hbox = ewl_grid_new();
   ewl_container_child_append(EWL_CONTAINER(border_box), hbox);
   ewl_object_fill_policy_set(EWL_OBJECT(hbox), EWL_FLAG_FILL_FILL);
   ewl_grid_column_preferred_w_use(EWL_GRID(hbox), 1);
   ewl_widget_show(hbox);

   o = ewl_label_new();
   ewl_label_text_set(EWL_LABEL(o), "Frame Rate:");
   ewl_container_child_append(EWL_CONTAINER(hbox), o);
   ewl_object_fill_policy_set(EWL_OBJECT(o), EWL_FLAG_FILL_NONE);
   ewl_object_alignment_set(EWL_OBJECT(o), EWL_FLAG_ALIGN_LEFT);
   ewl_widget_show(o);

   l = ewl_label_new();
   ewl_container_child_append(EWL_CONTAINER(hbox), l);
   ewl_object_fill_policy_set(EWL_OBJECT(l), EWL_FLAG_FILL_NONE);
   ewl_widget_show(l);

   o = ewl_hseeker_new();
   ewl_range_minimum_value_set(EWL_RANGE(o), 10.0);
   ewl_range_maximum_value_set(EWL_RANGE(o), 100.0);
   ewl_range_step_set(EWL_RANGE(o), 5.0);
   ewl_range_value_set(EWL_RANGE(o), em->fps);
   ewl_container_child_append(EWL_CONTAINER(border_box), o);
   ewl_callback_append(o, EWL_CALLBACK_VALUE_CHANGED, fps_cb, l);
   fps_cb(o, NULL, NULL);
   ewl_widget_show(o);

   /* Setup and show the border box */
   border_box = ewl_border_new();
   ewl_border_label_set(EWL_BORDER(border_box), "Rendering Engine");
   ewl_container_child_append(EWL_CONTAINER(main_box), border_box);
   ewl_object_fill_policy_set(EWL_OBJECT(border_box), EWL_FLAG_FILL_FILL);
   ewl_object_alignment_set(EWL_OBJECT(border_box), EWL_FLAG_ALIGN_CENTER);
   ewl_object_alignment_set(EWL_OBJECT(main_box), EWL_FLAG_ALIGN_TOP);
   ewl_widget_show(border_box);

   model = ewl_model_new();
   ewl_model_data_fetch_set(model, model_data_fetch);
   ewl_model_data_count_set(model, model_data_count);

   view = ewl_label_view_get();

   data = engine_data_init();

   combo = ewl_combo_new();
   ewl_container_child_append(EWL_CONTAINER(border_box), combo);
   ewl_callback_append(combo, EWL_CALLBACK_VALUE_CHANGED, engine_cb, NULL);
   ewl_mvc_model_set(EWL_MVC(combo), model);
   ewl_mvc_view_set(EWL_MVC(combo), view);
   ewl_mvc_data_set(EWL_MVC(combo), data);
   ewl_mvc_selected_set(EWL_MVC(combo), model, data,
                                          engine_data_return_active(data), 0);
   ewl_widget_show(combo);

   /* Setup and show the border box */
   border_box = ewl_border_new();
   ewl_border_label_set(EWL_BORDER(border_box), "Theme");
   ewl_container_child_append(EWL_CONTAINER(main_box), border_box);
   ewl_object_fill_policy_set(EWL_OBJECT(border_box), EWL_FLAG_FILL_FILL);
   ewl_object_alignment_set(EWL_OBJECT(border_box), EWL_FLAG_ALIGN_CENTER);
   ewl_object_alignment_set(EWL_OBJECT(main_box), EWL_FLAG_ALIGN_TOP);
   ewl_widget_show(border_box);

   data = theme_data_init();

   combo = ewl_combo_new();
   ewl_container_child_append(EWL_CONTAINER(border_box), combo);
   ewl_callback_append(combo, EWL_CALLBACK_VALUE_CHANGED, theme_cb, NULL);
   ewl_mvc_model_set(EWL_MVC(combo), model);
   ewl_mvc_view_set(EWL_MVC(combo), view);
   ewl_mvc_data_set(EWL_MVC(combo), data);
   ewl_mvc_selected_set(EWL_MVC(combo), model, data,
                                          theme_data_return_active(data), 0);
   ewl_widget_show(combo);
}

static void
destroy_cb(Ewl_Widget *w, void *event __UNUSED__, void *data __UNUSED__)
{
   ewl_widget_destroy(w);
   conf_win = NULL;
}

static void
conf_clicked_cb(Ewl_Widget *w, void *event __UNUSED__, void *data)
{
   Ewl_Stock_Type response;

   response = ewl_stock_type_get(EWL_STOCK(w));

   if ((response == EWL_STOCK_OK) || (response == EWL_STOCK_APPLY))
   {
      if (ecore_config_save() != ECORE_CONFIG_ERR_SUCC)
         printf("Failure to save configuration!\n");
   }

   if ((response == EWL_STOCK_OK) || (response == EWL_STOCK_CANCEL))
   {
      ewl_widget_destroy(EWL_WIDGET(data));
      conf_win = NULL;
   }
}

static void
scale_cb(Ewl_Widget *w, void *event __UNUSED__, void *data)
{
   double value;
   char buffer[10];

   value = ewl_range_value_get(EWL_RANGE(w));
   ecore_config_float_set("scale", value);
   snprintf(buffer, 10, "%f", value);
   ewl_label_text_set(EWL_LABEL(data), buffer);
}

static void
fps_cb(Ewl_Widget *w, void *event __UNUSED__, void *data)
{
   double value;
   char buffer[10];

   value = ewl_range_value_get(EWL_RANGE(w));
   ecore_config_int_set("frame_rate", value);
   snprintf(buffer, 10, "%f", value);
   ewl_label_text_set(EWL_LABEL(data), buffer);
}

static void
engine_cb(Ewl_Widget *w, void *event __UNUSED__, void *data)
{
   Config_Data *d;
   Ewl_Selection_Idx *idx;

   d = ewl_mvc_data_get(EWL_MVC(w));
   idx = ewl_mvc_selected_get(EWL_MVC(w));
   free(em->engine);
   
   ecore_config_string_set("engine", d->array[idx->row]);
   em->engine = strdup(d->array[idx->row]);
   free(idx);
}

static void
theme_cb(Ewl_Widget *w, void *event __UNUSED__, void *data)
{
   Config_Data *d;
   Ewl_Selection_Idx *idx;

   d = ewl_mvc_data_get(EWL_MVC(w));
   idx = ewl_mvc_selected_get(EWL_MVC(w));
   free(em->theme_path);

   ecore_config_theme_set("theme", d->array[idx->row]);
   em->theme_path = ecore_config_theme_with_path_get("theme");
   free(idx);
}

static Config_Data *
theme_data_init(void)
{
   Config_Data *ret;

   ret = malloc(sizeof(Config_Data));

   return ret;
}

static int
theme_data_return_active(Config_Data *data)
{
   return 0;
}

static Config_Data *
engine_data_init(void)
{
   Config_Data *ret;

   ret = malloc(sizeof(Config_Data));

   return ret;
}

static int
engine_data_return_active(Config_Data *data)
{
   return 0;
}

static unsigned int
model_data_count(void *data)
{
   Config_Data *cd = data;
   return cd->count;
}

static void *
model_data_fetch(void *data, unsigned int row, unsigned int col __UNUSED__)
{
   Config_Data *cd = data;
   return cd->array[row];
}