/*
    This file is part of darktable,
    copyright (c) 2011 Henrik Andersson.

    darktable 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.

    darktable 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 darktable.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "common/darktable.h"
#include "common/debug.h"
#include "common/film.h"
#include "common/collection.h"
#include "common/image_cache.h"
#include "common/mipmap_cache.h"
#include "common/imageio.h"
#include "common/imageio_jpeg.h"
#include "common/dt_logo_128x128.h"
#include "libraw/libraw.h"
#include "control/control.h"
#include "control/conf.h"
#include "control/jobs/camera_jobs.h"
#include "dtgtk/label.h"
#include "dtgtk/button.h"
#include "gui/accelerators.h"
#include "gui/gtk.h"
#ifdef HAVE_GPHOTO2
#include "gui/camera_import_dialog.h"
#endif
#include "libs/lib.h"

DT_MODULE(1)


#ifdef HAVE_GPHOTO2
/** helper function to update ui with available cameras and ther actionbuttons */
static void _lib_import_ui_devices_update(dt_lib_module_t *self);
#endif


typedef struct dt_lib_import_t
{
#ifdef HAVE_GPHOTO2
  dt_camctl_listener_t camctl_listener;
#endif
  GtkButton *import_file;
  GtkButton *import_directory;
  GtkButton *import_camera;
  GtkButton *scan_devices;
  GtkButton *tethered_shoot;

  GtkBox *devices;
}
dt_lib_import_t;

typedef struct dt_lib_import_metadata_t
{
  GtkWidget *frame;
  GtkWidget *recursive;
  GtkWidget *ignore_jpeg;
  GtkWidget *expander;
  GtkWidget *apply_metadata;
  GtkWidget *presets;
  GtkWidget *creator;
  GtkWidget *publisher;
  GtkWidget *rights;
  GtkWidget *tags;
}
dt_lib_import_metadata_t;

enum {NAME_COLUMN, CREATOR_COLUMN, PUBLISHER_COLUMN, RIGHTS_COLUMN, N_COLUMNS};

const char* name()
{
  return _("import");
}


uint32_t views()
{
  return DT_VIEW_LIGHTTABLE;
}

uint32_t container()
{
  return DT_UI_CONTAINER_PANEL_LEFT_CENTER;
}

int position()
{
  return 999;
}

void init_key_accels(dt_lib_module_t *self)
{
  dt_accel_register_lib(self, NC_("accel", "scan for devices"), 0, 0);
  dt_accel_register_lib(self, NC_("accel", "import from camera"), 0, 0);
  dt_accel_register_lib(self, NC_("accel", "tethered shoot"), 0, 0);
  dt_accel_register_lib(self, NC_("accel", "import image"), 0, 0);
}

void connect_key_accels(dt_lib_module_t *self)
{
  dt_lib_import_t *d = (dt_lib_import_t*)self->data;

  dt_accel_connect_button_lib(self, "scan for devices",
                              GTK_WIDGET(d->scan_devices));
  dt_accel_connect_button_lib(self, "import image",
                              GTK_WIDGET(d->import_file));
  if(d->tethered_shoot)
    dt_accel_connect_button_lib(self, "tethered shoot",
                                GTK_WIDGET(d->tethered_shoot));
  if(d->import_camera)
    dt_accel_connect_button_lib(self, "import from camera",
                                GTK_WIDGET(d->import_camera));
}

#ifdef HAVE_GPHOTO2

/* scan for new devices button callback */
static void _lib_import_scan_devices_callback(GtkButton *button,gpointer data)
{
  /* detect cameras */
  dt_camctl_detect_cameras(darktable.camctl);
  /* update UI */
  _lib_import_ui_devices_update(data);
}

/* show import from camera dialog */
static void _lib_import_from_camera_callback(GtkButton *button,gpointer data)
{
  dt_camera_import_dialog_param_t *params=(dt_camera_import_dialog_param_t *)g_malloc(sizeof(dt_camera_import_dialog_param_t));
  memset( params, 0, sizeof(dt_camera_import_dialog_param_t));
  params->camera = (dt_camera_t*)data;

  dt_camera_import_dialog_new(params);
  if( params->result )
  {
    /* initialize a import job and put it on queue.... */
    gchar *path = g_build_path(G_DIR_SEPARATOR_S,params->basedirectory,params->subdirectory,(char *)NULL);
    dt_job_t j;
    dt_camera_import_job_init(&j,params->jobcode,path,params->filenamepattern,params->result,params->camera,params->time_override);
    dt_control_add_job(darktable.control, &j);
    g_free(path);
  }
  g_free(params);
}

/* enter tethering mode for camera */
static void _lib_import_tethered_callback(GtkToggleButton *button,gpointer data)
{
  /* select camera to work with before switching mode */
  dt_camctl_select_camera(darktable.camctl, (dt_camera_t *)data);
  dt_conf_set_int( "plugins/capture/mode", DT_CAPTURE_MODE_TETHERED);
  dt_conf_set_int("plugins/capture/current_filmroll",-1);
  dt_ctl_switch_mode_to(DT_CAPTURE);
}


/** update the device list */
void _lib_import_ui_devices_update(dt_lib_module_t *self)
{

  dt_lib_import_t *d = (dt_lib_import_t*)self->data;

  GList *citem;

  /* cleanup of widgets in devices container*/
  GList *item;
  if((item=gtk_container_get_children(GTK_CONTAINER(d->devices)))!=NULL)
    do
    {
      gtk_container_remove(GTK_CONTAINER(d->devices),GTK_WIDGET(item->data));
    }
    while((item=g_list_next(item))!=NULL);

  /* add the rescan button */
  GtkButton *scan = GTK_BUTTON(gtk_button_new_with_label(_("scan for devices")));
  d->scan_devices = scan;
  gtk_button_set_alignment(scan, 0.05, 0.5);
  g_object_set(G_OBJECT(scan), "tooltip-text", _("scan for newly attached devices"), (char *)NULL);
  g_signal_connect (G_OBJECT(scan), "clicked",G_CALLBACK (_lib_import_scan_devices_callback), self);
  gtk_box_pack_start(GTK_BOX(d->devices),GTK_WIDGET(scan),TRUE,TRUE,0);
  gtk_box_pack_start(GTK_BOX(d->devices),GTK_WIDGET(gtk_label_new("")),TRUE,TRUE,0);

  uint32_t count=0;
  /* FIXME: Verify that it's safe to access camctl->cameras list here ? */
  if( (citem = g_list_first (darktable.camctl->cameras))!=NULL)
  {
    // Add detected supported devices
    char buffer[512]= {0};
    do
    {
      dt_camera_t *camera=(dt_camera_t *)citem->data;
      count++;

      /* add camera label */
      GtkWidget *label = GTK_WIDGET (dtgtk_label_new (camera->model,DARKTABLE_LABEL_TAB|DARKTABLE_LABEL_ALIGN_LEFT));
      gtk_box_pack_start (GTK_BOX (d->devices),label,TRUE,TRUE,0);

      /* set camera summary if available */
      if( camera->summary.text !=NULL && strlen(camera->summary.text) >0 )
      {
        g_object_set(G_OBJECT(label), "tooltip-text", camera->summary.text, (char *)NULL);
      }
      else
      {
        sprintf(buffer,_("device \"%s\" connected on port \"%s\"."),camera->model,camera->port);
        g_object_set(G_OBJECT(label), "tooltip-text", buffer, (char *)NULL);
      }

      /* add camera actions buttons */
      GtkWidget *ib=NULL,*tb=NULL;
      GtkWidget *vbx=gtk_vbox_new(FALSE,5);
      if( camera->can_import==TRUE )
      {
        gtk_box_pack_start (GTK_BOX (vbx),(ib=gtk_button_new_with_label (_("import from camera"))),FALSE,FALSE,0);
        d->import_camera = GTK_BUTTON(ib);
      }
      if( camera->can_tether==TRUE )
      {
        gtk_box_pack_start (GTK_BOX (vbx),(tb=gtk_button_new_with_label (_("tethered shoot"))),FALSE,FALSE,0);
        d->tethered_shoot = GTK_BUTTON(tb);
      }

      if( ib )
      {
        g_signal_connect (G_OBJECT (ib), "clicked",G_CALLBACK (_lib_import_from_camera_callback), camera);
        gtk_button_set_alignment(GTK_BUTTON(ib), 0.05, 0.5);
      }
      if( tb )
      {
        g_signal_connect (G_OBJECT (tb), "clicked",G_CALLBACK (_lib_import_tethered_callback), camera);
        gtk_button_set_alignment(GTK_BUTTON(tb), 0.05, 0.5);
      }
      gtk_box_pack_start (GTK_BOX (d->devices),vbx,FALSE,FALSE,0);
    }
    while ((citem=g_list_next (citem))!=NULL);
  }

  if( count == 0 )
  {
    // No supported devices is detected lets notice user..
    gtk_box_pack_start(GTK_BOX(d->devices),gtk_label_new(_("no supported devices found")),TRUE,TRUE,0);
  }
  gtk_widget_show_all(GTK_WIDGET(d->devices));
}

/** camctl camera disconnect callback */
static void _camctl_camera_disconnected_callback (const dt_camera_t *camera,void *data)
{
  dt_lib_module_t *self = (dt_lib_module_t *)data;


  /* rescan connected cameras */
  dt_camctl_detect_cameras(darktable.camctl);

  /* update gui with detected devices */
  gboolean i_own_lock = dt_control_gdk_lock();
  _lib_import_ui_devices_update(self);
  if(i_own_lock) dt_control_gdk_unlock();
}

/** camctl status listener callback */
static void _camctl_camera_control_status_callback(dt_camctl_status_t status,void *data)
{
  dt_lib_module_t *self = (dt_lib_module_t *)data;
  dt_lib_import_t *d = (dt_lib_import_t*)self->data;

  /* check if we need gdk locking */
  gboolean i_have_lock = dt_control_gdk_lock();

  /* handle camctl status */
  switch(status)
  {
    case CAMERA_CONTROL_BUSY:
    {
      /* set all devicese as inaccessible */
      GList *child = gtk_container_get_children(GTK_CONTAINER(d->devices));
      if(child)
        do
        {
          if( !(GTK_IS_TOGGLE_BUTTON(child->data)  && gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(child->data))==TRUE) )
            gtk_widget_set_sensitive(GTK_WIDGET(child->data),FALSE);
        }
        while( (child=g_list_next(child)) );
    }
    break;

    case CAMERA_CONTROL_AVAILABLE:
    {
      /* set all devices as accessible */
      GList *child = gtk_container_get_children(GTK_CONTAINER(d->devices));
      if(child)
        do
        {
          gtk_widget_set_sensitive(GTK_WIDGET(child->data),TRUE);
        }
        while( (child=g_list_next(child)) );
    }
    break;
  }

  /* unlock */
  if(i_have_lock) dt_control_gdk_unlock();
}

#endif // HAVE_GPHOTO2

static void _lib_import_metadata_changed(GtkWidget *widget, GtkComboBox *box)
{
  gtk_combo_box_set_active(box, -1);
}

static void _lib_import_apply_metadata_toggled(GtkWidget *widget, gpointer user_data)
{
  GtkWidget *table = GTK_WIDGET(user_data);
  gtk_widget_set_sensitive(table, gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget)));
}

static void _lib_import_presets_changed(GtkWidget *widget, dt_lib_import_metadata_t *data)
{
  GtkTreeIter iter;

  if(gtk_combo_box_get_active_iter(GTK_COMBO_BOX(widget), &iter) == TRUE)
  {
    GtkTreeModel *model = gtk_combo_box_get_model(GTK_COMBO_BOX(widget));
    GValue value = {0,};
    gchar *sv;

    gtk_tree_model_get_value(model, &iter, CREATOR_COLUMN, &value);
    if((sv=(gchar*)g_value_get_string(&value))!=NULL && sv[0] != '\0')
    {
      g_signal_handlers_block_by_func(data->creator, _lib_import_metadata_changed, data->presets);
      gtk_entry_set_text(GTK_ENTRY(data->creator), sv);
      g_signal_handlers_unblock_by_func(data->creator, _lib_import_metadata_changed, data->presets);
    }
    g_value_unset(&value);

    gtk_tree_model_get_value(model, &iter, PUBLISHER_COLUMN, &value);
    if((sv=(gchar*)g_value_get_string(&value))!=NULL && sv[0] != '\0')
    {
      g_signal_handlers_block_by_func(data->publisher, _lib_import_metadata_changed, data->presets);
      gtk_entry_set_text(GTK_ENTRY(data->publisher), sv);
      g_signal_handlers_unblock_by_func(data->publisher, _lib_import_metadata_changed, data->presets);
    }
    g_value_unset(&value);

    gtk_tree_model_get_value(model, &iter, RIGHTS_COLUMN, &value);
    if((sv=(gchar*)g_value_get_string(&value))!=NULL && sv[0] != '\0')
    {
      g_signal_handlers_block_by_func(data->rights, _lib_import_metadata_changed, data->presets);
      gtk_entry_set_text(GTK_ENTRY(data->rights), sv);
      g_signal_handlers_unblock_by_func(data->rights, _lib_import_metadata_changed, data->presets);
    }
    g_value_unset(&value);
  }
}

static GtkWidget* _lib_import_get_extra_widget(dt_lib_import_metadata_t *data, gboolean import_folder)
{
  // add extra lines to 'extra'. don't forget to destroy the widgets later.
  GtkWidget *expander = gtk_expander_new(_("import options"));
  gtk_expander_set_expanded(GTK_EXPANDER(expander), dt_conf_get_bool("ui_last/import_options_expanded"));

  GtkWidget *frame = gtk_frame_new(NULL);
  gtk_frame_set_shadow_type(GTK_FRAME(frame),GTK_SHADOW_IN);
  GtkWidget *alignment = gtk_alignment_new(1.0, 1.0, 1.0, 1.0);
  gtk_alignment_set_padding(GTK_ALIGNMENT(alignment), 8, 8, 8, 8);
  GtkWidget *event_box = gtk_event_box_new();
  gtk_container_add(GTK_CONTAINER(frame), event_box);
  gtk_container_add(GTK_CONTAINER(event_box), alignment);
  gtk_container_add(GTK_CONTAINER(alignment), expander);

  GtkWidget *extra;
  extra = gtk_vbox_new(FALSE, 0);
  gtk_container_add(GTK_CONTAINER(expander), extra);

  GtkWidget *recursive = NULL, *ignore_jpeg = NULL;
  if(import_folder == TRUE)
  {
    // recursive opening.
    recursive = gtk_check_button_new_with_label (_("import directories recursively"));
    g_object_set(recursive, "tooltip-text", _("recursively import subdirectories. each directory goes into a new film roll."), NULL);
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON (recursive), dt_conf_get_bool("ui_last/import_recursive"));
    gtk_box_pack_start(GTK_BOX (extra), recursive, FALSE, FALSE, 0);

    // ignoring of jpegs. hack while we don't handle raw+jpeg in the same directories.
    ignore_jpeg = gtk_check_button_new_with_label (_("ignore jpeg files"));
    g_object_set(ignore_jpeg, "tooltip-text", _("do not load files with an extension of .jpg or .jpeg. this can be useful when there are raw+jpeg in a directory."), NULL);
    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON (ignore_jpeg), dt_conf_get_bool("ui_last/import_ignore_jpegs"));
    gtk_box_pack_start(GTK_BOX (extra), ignore_jpeg, FALSE, FALSE, 0);
  }

  // default metadata
  GtkWidget *apply_metadata;
  GtkWidget *table, *label, *creator, *publisher, *rights, *tags;
  apply_metadata = gtk_check_button_new_with_label (_("apply metadata on import"));
  g_object_set(apply_metadata, "tooltip-text", _("apply some metadata to all newly imported images."), NULL);
  gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON (apply_metadata), dt_conf_get_bool("ui_last/import_apply_metadata"));
  gtk_box_pack_start(GTK_BOX (extra), apply_metadata, FALSE, FALSE, 0);

  GValue value = {0, };
  g_value_init(&value, G_TYPE_INT);
  gtk_widget_style_get_property(apply_metadata, "indicator-size", &value);
  gint indicator_size = g_value_get_int(&value);
//   gtk_widget_style_get_property(apply_metadata, "indicator-spacing", &value);
//   gint indicator_spacing = g_value_get_int(&value);

  table = gtk_table_new(6, 3, FALSE);
  gtk_table_set_row_spacings(GTK_TABLE(table), 5);
  gtk_table_set_col_spacings(GTK_TABLE(table), 5);
  alignment = gtk_alignment_new(0, 0, 1, 1);
  gtk_alignment_set_padding(GTK_ALIGNMENT(alignment), 0, 0, 2*indicator_size, 0);
  gtk_container_add(GTK_CONTAINER(alignment), table);
  gtk_box_pack_start(GTK_BOX (extra), alignment, FALSE, FALSE, 0);

  creator = gtk_entry_new();
  gtk_widget_set_size_request(creator, 300, -1);
  gtk_entry_set_text(GTK_ENTRY(creator), dt_conf_get_string("ui_last/import_last_creator"));
  publisher = gtk_entry_new();
  gtk_entry_set_text(GTK_ENTRY(publisher), dt_conf_get_string("ui_last/import_last_publisher"));
  rights = gtk_entry_new();
  gtk_entry_set_text(GTK_ENTRY(rights), dt_conf_get_string("ui_last/import_last_rights"));
  tags = gtk_entry_new();
  g_object_set(tags, "tooltip-text", _("comma separated list of tags"), NULL);
  gtk_entry_set_text(GTK_ENTRY(tags), dt_conf_get_string("ui_last/import_last_tags"));

  // presets from the metadata plugin
  GtkCellRenderer *renderer;
  GtkTreeIter iter;
  GtkListStore *model = gtk_list_store_new(N_COLUMNS,
                        G_TYPE_STRING /*name*/,
                        G_TYPE_STRING /*creator*/,
                        G_TYPE_STRING /*publisher*/,
                        G_TYPE_STRING /*rights*/);

  GtkWidget *presets = gtk_combo_box_new_with_model(GTK_TREE_MODEL(model));
  renderer = gtk_cell_renderer_text_new();
  gtk_cell_layout_pack_start(GTK_CELL_LAYOUT(presets), renderer, FALSE);
  gtk_cell_layout_set_attributes(GTK_CELL_LAYOUT(presets), renderer, "text", NAME_COLUMN, NULL);

  sqlite3_stmt *stmt;
  DT_DEBUG_SQLITE3_PREPARE_V2(dt_database_get(darktable.db), "select name, op_params from presets where operation = \"metadata\"", -1, &stmt, NULL);
  while(sqlite3_step(stmt) == SQLITE_ROW)
  {
    void *op_params = (void *)sqlite3_column_blob(stmt, 1);
    int32_t op_params_size = sqlite3_column_bytes(stmt, 1);

    char *buf         = (char* )op_params;
    char *title       = buf;
    buf += strlen(title) + 1;
    char *description = buf;
    buf += strlen(description) + 1;
    char *rights     = buf;
    buf += strlen(rights) + 1;
    char *creator     = buf;
    buf += strlen(creator) + 1;
    char *publisher   = buf;

    if(op_params_size == strlen(title) + strlen(description) + strlen(rights) + strlen(creator) + strlen(publisher) + 5)
    {
      gtk_list_store_append(model, &iter);
      gtk_list_store_set (model, &iter,
                          NAME_COLUMN, (char *)sqlite3_column_text(stmt, 0),
                          CREATOR_COLUMN, creator,
                          PUBLISHER_COLUMN, publisher,
                          RIGHTS_COLUMN, rights,
                          -1);
    }
  }
  sqlite3_finalize(stmt);

  g_object_unref(model);

  int line = 0;

  label = gtk_label_new(_("preset"));
  gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
  gtk_table_attach(GTK_TABLE(table), label, 0, 1, line, line+1, GTK_FILL, 0, 0, 0);
  gtk_table_attach(GTK_TABLE(table), presets, 1, 2, line, line+1, GTK_FILL, 0, 0, 0);
  line++;

  label = gtk_label_new(_("creator"));
  gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
  gtk_table_attach(GTK_TABLE(table), label, 0, 1, line, line+1, GTK_FILL, 0, 0, 0);
  gtk_table_attach(GTK_TABLE(table), creator, 1, 2, line, line+1, GTK_FILL, 0, 0, 0);
  line++;

  label = gtk_label_new(_("publisher"));
  gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
  gtk_table_attach(GTK_TABLE(table), label, 0, 1, line, line+1, GTK_FILL, 0, 0, 0);
  gtk_table_attach(GTK_TABLE(table), publisher, 1, 2, line, line+1, GTK_FILL, 0, 0, 0);
  line++;

  label = gtk_label_new(_("rights"));
  gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
  gtk_table_attach(GTK_TABLE(table), label, 0, 1, line, line+1, GTK_FILL, 0, 0, 0);
  gtk_table_attach(GTK_TABLE(table), rights, 1, 2, line, line+1, GTK_FILL, 0, 0, 0);
  line++;

  label = gtk_label_new(_("tags"));
  gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
  gtk_table_attach(GTK_TABLE(table), label, 0, 1, line, line+1, GTK_FILL, 0, 0, 0);
  gtk_table_attach(GTK_TABLE(table), tags, 1, 2, line, line+1, GTK_FILL, 0, 0, 0);

  gtk_widget_show_all(frame);

  if(data != NULL)
  {
    data->frame = frame;
    data->recursive = recursive;
    data->ignore_jpeg = ignore_jpeg;
    data->expander = expander;
    data->apply_metadata = apply_metadata;
    data->presets = presets;
    data->creator = creator;
    data->publisher = publisher;
    data->rights = rights;
    data->tags = tags;
  }

  g_signal_connect(apply_metadata, "toggled", G_CALLBACK (_lib_import_apply_metadata_toggled), table);
  _lib_import_apply_metadata_toggled(apply_metadata, table); // needed since the apply_metadata starts being turned off,
  // and setting it to off doesn't emit the 'toggled' signal ...

  g_signal_connect(presets, "changed", G_CALLBACK(_lib_import_presets_changed), data);
  g_signal_connect(GTK_ENTRY(creator), "changed", G_CALLBACK (_lib_import_metadata_changed), presets);
  g_signal_connect(GTK_ENTRY(publisher), "changed", G_CALLBACK (_lib_import_metadata_changed), presets);
  g_signal_connect(GTK_ENTRY(rights), "changed", G_CALLBACK (_lib_import_metadata_changed), presets);

  return frame;
}

static void _lib_import_evaluate_extra_widget(dt_lib_import_metadata_t *data, gboolean import_folder)
{
  if(import_folder == TRUE)
  {
    dt_conf_set_bool("ui_last/import_recursive", gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON (data->recursive)));
    dt_conf_set_bool("ui_last/import_ignore_jpegs", gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON (data->ignore_jpeg)));
  }
  dt_conf_set_bool("ui_last/import_options_expanded", gtk_expander_get_expanded(GTK_EXPANDER (data->expander)));
  dt_conf_set_bool("ui_last/import_apply_metadata", gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON (data->apply_metadata)));
  dt_conf_set_string("ui_last/import_last_creator", gtk_entry_get_text(GTK_ENTRY(data->creator)));
  dt_conf_set_string("ui_last/import_last_publisher", gtk_entry_get_text(GTK_ENTRY(data->publisher)));
  dt_conf_set_string("ui_last/import_last_rights", gtk_entry_get_text(GTK_ENTRY(data->rights)));
  dt_conf_set_string("ui_last/import_last_tags", gtk_entry_get_text(GTK_ENTRY(data->tags)));
}

// TODO: use orientation to correctly rotate the image.
// maybe this should be (partly) in common/imageio.[c|h]?
static void _lib_import_update_preview(GtkFileChooser *file_chooser, gpointer data)
{
  GtkWidget *preview;
  char *filename;
  GdkPixbuf *pixbuf = NULL;
  gboolean have_preview = FALSE;

  preview = GTK_WIDGET(data);
  filename = gtk_file_chooser_get_preview_filename(file_chooser);

  if(!g_file_test(filename, G_FILE_TEST_IS_REGULAR)) goto no_preview_fallback;
  // don't create dng thumbnails to avoid crashes in libtiff when these are hdr:
  char *c = filename + strlen(filename);
  while(c > filename && *c != '.') c--;
  if(!strcasecmp(c, ".dng")) goto no_preview_fallback;

  pixbuf = gdk_pixbuf_new_from_file_at_size(filename, 128, 128, NULL);
  have_preview = (pixbuf != NULL);
  if(!have_preview)
  {
    // raw image thumbnail
    int ret;
    libraw_data_t *raw = libraw_init(0);
    libraw_processed_image_t *image = NULL;
    ret = libraw_open_file(raw, filename);
    if(ret) goto libraw_fail;
    ret = libraw_unpack_thumb(raw);
    if(ret) goto libraw_fail;
    ret = libraw_adjust_sizes_info_only(raw);
    if(ret) goto libraw_fail;

    image = libraw_dcraw_make_mem_thumb(raw, &ret);
    if(!image || ret) goto libraw_fail;
//     const int orientation = raw->sizes.flip;

    GdkPixbuf *tmp;
    GdkPixbufLoader *loader = gdk_pixbuf_loader_new();
    have_preview = gdk_pixbuf_loader_write(loader, image->data, image->data_size, NULL);
    tmp = gdk_pixbuf_loader_get_pixbuf(loader);
    gdk_pixbuf_loader_close(loader, NULL);
    float ratio;
    if(image->type == LIBRAW_IMAGE_JPEG)
    {
      // jpeg
      dt_imageio_jpeg_t jpg;
      if(dt_imageio_jpeg_decompress_header(image->data, image->data_size, &jpg)) goto libraw_fail;
      ratio = 1.0*jpg.height/jpg.width;
    }
    else
    {
      // bmp -- totally untested
      ratio = 1.0*image->height/image->width;
    }
    int width = 128, height = 128*ratio;
    pixbuf = gdk_pixbuf_scale_simple(tmp, width, height, GDK_INTERP_BILINEAR);

    if(loader)
      g_object_unref(loader);

    // clean up raw stuff.
    libraw_recycle(raw);
    libraw_close(raw);
    free(image);
    if(0)
    {
libraw_fail:
      // fprintf(stderr,"[imageio] %s: %s\n", filename, libraw_strerror(ret));
      libraw_close(raw);
      have_preview = FALSE;
    }
  }
  if(!have_preview)
  {
no_preview_fallback:
    pixbuf = gdk_pixbuf_new_from_inline(-1, dt_logo_128x128, FALSE, NULL);
    have_preview = TRUE;
  }
  if(have_preview)
    gtk_image_set_from_pixbuf(GTK_IMAGE(preview), pixbuf);
  if(pixbuf)
    g_object_unref(pixbuf);
  g_free(filename);

  gtk_file_chooser_set_preview_widget_active(file_chooser, have_preview);
}

static void _lib_import_single_image_callback(GtkWidget *widget,gpointer user_data)
{
  GtkWidget *win = dt_ui_main_window(darktable.gui->ui);
  GtkWidget *filechooser = gtk_file_chooser_dialog_new (_("import image"),
                           GTK_WINDOW (win),
                           GTK_FILE_CHOOSER_ACTION_OPEN,
                           GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                           GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
                           (char *)NULL);

  gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(filechooser), TRUE);

  char *last_directory = dt_conf_get_string("ui_last/import_last_directory");
  if(last_directory != NULL)
    gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER (filechooser), last_directory);

  char *cp, **extensions, ext[1024];
  GtkFileFilter *filter;
  filter = GTK_FILE_FILTER(gtk_file_filter_new());
  extensions = g_strsplit(dt_supported_extensions, ",", 100);
  for(char **i=extensions; *i!=NULL; i++)
  {
    snprintf(ext, 1024, "*.%s", *i);
    gtk_file_filter_add_pattern(filter, ext);
    gtk_file_filter_add_pattern(filter, cp=g_ascii_strup(ext, -1));
    g_free(cp);
  }
  g_strfreev(extensions);
  gtk_file_filter_set_name(filter, _("supported images"));
  gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(filechooser), filter);

  filter = GTK_FILE_FILTER(gtk_file_filter_new());
  gtk_file_filter_add_pattern(filter, "*");
  gtk_file_filter_set_name(filter, _("all files"));
  gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(filechooser), filter);

  GtkWidget *preview = gtk_image_new();
  gtk_file_chooser_set_preview_widget(GTK_FILE_CHOOSER(filechooser), preview);
  g_signal_connect(filechooser, "update-preview", G_CALLBACK (_lib_import_update_preview), preview);

  dt_lib_import_metadata_t metadata;
  gtk_file_chooser_set_extra_widget (GTK_FILE_CHOOSER (filechooser), _lib_import_get_extra_widget(&metadata, FALSE));

  if (gtk_dialog_run (GTK_DIALOG (filechooser)) == GTK_RESPONSE_ACCEPT)
  {
    dt_conf_set_string("ui_last/import_last_directory", gtk_file_chooser_get_current_folder(GTK_FILE_CHOOSER (filechooser)));
    _lib_import_evaluate_extra_widget(&metadata, FALSE);

    char *filename = NULL;
    dt_film_t film;
    GSList *list = gtk_file_chooser_get_filenames (GTK_FILE_CHOOSER (filechooser));
    GSList *it = list;
    int id = 0;
    int filmid = 0;

    /* reset filter to display all images, otherwise view may remain empty */
    dt_view_filter_reset_to_show_all(darktable.view_manager);

    while(it)
    {
      filename = (char *)it->data;
      gchar *directory = g_path_get_dirname((const gchar *)filename);
      filmid = dt_film_new(&film, directory);
      id = dt_image_import(filmid, filename, TRUE);
      if(!id) dt_control_log(_("error loading file `%s'"), filename);
      g_free (filename);
      g_free (directory);
      it = g_slist_next(it);
    }

    if(id)
    {
      dt_film_open(filmid);
      // make sure buffers are loaded (load full for testing)
      dt_mipmap_buffer_t buf;
      dt_mipmap_cache_read_get(darktable.mipmap_cache, &buf, id, DT_MIPMAP_FULL, DT_MIPMAP_BLOCKING);
      if(!buf.buf)
      {
        dt_control_log(_("file has unknown format!"));
      }
      else
      {
        dt_mipmap_cache_read_release(darktable.mipmap_cache, &buf);
        DT_CTL_SET_GLOBAL(lib_image_mouse_over_id, id);
        dt_ctl_switch_mode_to(DT_DEVELOP);
      }
    }
  }
  gtk_widget_destroy(metadata.frame);
  gtk_widget_destroy (filechooser);
  gtk_widget_queue_draw(dt_ui_center(darktable.gui->ui));
}

static void _lib_import_folder_callback(GtkWidget *widget,gpointer user_data)
{
  GtkWidget *win = dt_ui_main_window(darktable.gui->ui);
  GtkWidget *filechooser = gtk_file_chooser_dialog_new (_("import film"),
                           GTK_WINDOW (win),
                           GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER,
                           GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                           GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
                           (char *)NULL);

  gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(filechooser), TRUE);

  char *last_directory = dt_conf_get_string("ui_last/import_last_directory");
  if(last_directory != NULL)
    gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER (filechooser), last_directory);

  dt_lib_import_metadata_t metadata;
  gtk_file_chooser_set_extra_widget (GTK_FILE_CHOOSER (filechooser), _lib_import_get_extra_widget(&metadata, TRUE));

  // run the dialog
  if (gtk_dialog_run (GTK_DIALOG (filechooser)) == GTK_RESPONSE_ACCEPT)
  {
    dt_conf_set_string("ui_last/import_last_directory", gtk_file_chooser_get_current_folder(GTK_FILE_CHOOSER (filechooser)));
    _lib_import_evaluate_extra_widget(&metadata, TRUE);

    char *filename = NULL, *first_filename = NULL;
    GSList *list = gtk_file_chooser_get_filenames (GTK_FILE_CHOOSER (filechooser));
    GSList *it = list;

    /* reset filter to display all images, otherwise view may remain empty */
    dt_view_filter_reset_to_show_all(darktable.view_manager);

    /* for each selected folder add import job */
    while(it)
    {
      filename = (char *)it->data;
      dt_film_import(filename);
      if (!first_filename)
      {
        first_filename = g_strdup(filename);
        if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON (metadata.recursive)))
          first_filename = dt_util_dstrcat(first_filename, "%%");
      }
      g_free (filename);
      it = g_slist_next(it);
    }

    /* update collection to view import */
    if (first_filename)
    {
      dt_conf_set_int("plugins/lighttable/collect/num_rules", 1);
      dt_conf_set_int("plugins/lighttable/collect/item0", 0);
      dt_conf_set_string("plugins/lighttable/collect/string0",first_filename);
      dt_collection_update_query(darktable.collection);
      g_free(first_filename);
    }


    g_slist_free (list);
  }
  gtk_widget_destroy(metadata.frame);
  gtk_widget_destroy (filechooser);
  gtk_widget_queue_draw(dt_ui_center(darktable.gui->ui));
}

void gui_init(dt_lib_module_t *self)
{
  /* initialize ui widgets */
  dt_lib_import_t *d = (dt_lib_import_t *)g_malloc(sizeof(dt_lib_import_t));
  memset(d,0,sizeof(dt_lib_import_t));
  self->data = (void *)d;
  self->widget = gtk_vbox_new(FALSE, 5);

  /* add import singel image buttons */
  GtkWidget *widget = gtk_button_new_with_label(_("image"));
  d->import_file = GTK_BUTTON(widget);
  gtk_button_set_alignment(GTK_BUTTON(widget), 0.05, 5);
  gtk_widget_set_tooltip_text(widget, _("select one or more images to import"));
  gtk_widget_set_can_focus(widget, TRUE);
  gtk_widget_set_receives_default(widget, TRUE);
  gtk_box_pack_start(GTK_BOX(self->widget), widget, TRUE, TRUE, 0);
  g_signal_connect (G_OBJECT (widget), "clicked",
                    G_CALLBACK (_lib_import_single_image_callback),
                    self);

  /* adding the import folder button */
  widget = gtk_button_new_with_label(_("folder"));
  d->import_directory = GTK_BUTTON(widget);
  gtk_button_set_alignment(GTK_BUTTON(widget), 0.05, 5);
  gtk_widget_set_tooltip_text(widget,
                              _("select a folder to import as film roll"));
  gtk_widget_set_can_focus(widget, TRUE);
  gtk_widget_set_receives_default(widget, TRUE);
  gtk_box_pack_start(GTK_BOX(self->widget), widget, FALSE, FALSE, 0);
  g_signal_connect (G_OBJECT (widget), "clicked",
                    G_CALLBACK (_lib_import_folder_callback),
                    self);

#ifdef HAVE_GPHOTO2
  /* add devices container for cameras */
  d->devices = GTK_BOX(gtk_vbox_new(FALSE,5));
  gtk_box_pack_start(GTK_BOX(self->widget), GTK_WIDGET(d->devices), FALSE, FALSE, 0);

  /* initialize camctl listener and update devices */
  d->camctl_listener.data = self;
  d->camctl_listener.control_status = _camctl_camera_control_status_callback;
  d->camctl_listener.camera_disconnected = _camctl_camera_disconnected_callback;
  dt_camctl_register_listener(darktable.camctl, &d->camctl_listener );
  _lib_import_ui_devices_update(self);

#endif

}

void gui_cleanup(dt_lib_module_t *self)
{
#ifdef HAVE_GPHOTO2
  dt_lib_import_t *d = (dt_lib_import_t*)self->data;
  /* unregister camctl listener */
  dt_camctl_unregister_listener(darktable.camctl, &d->camctl_listener );
#endif

  /* cleanup mem */
  g_free(self->data);
  self->data = NULL;
}

// modelines: These editor modelines have been set for all relevant files by tools/update_modelines.sh
// vim: shiftwidth=2 expandtab tabstop=2 cindent
// kate: tab-indents: off; indent-width 2; replace-tabs on; indent-mode cstyle; remove-trailing-space on;