/*************************************************************************/
/*  sample_library_editor_plugin.cpp                                     */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#include "sample_library_editor_plugin.h"

#include "editor/editor_settings.h"
#include "globals.h"
#include "io/resource_loader.h"
#include "sample_editor_plugin.h"
#include "scene/main/viewport.h"

void SampleLibraryEditor::_input_event(InputEvent p_event) {
}

void SampleLibraryEditor::_notification(int p_what) {

	if (p_what == NOTIFICATION_PROCESS) {
		if (is_playing && !player->is_active()) {
			TreeItem *tl = last_sample_playing->cast_to<TreeItem>();
			tl->set_button(0, 0, get_icon("Play", "EditorIcons"));
			is_playing = false;
			set_process(false);
		}
	}

	if (p_what == NOTIFICATION_ENTER_TREE) {
		load->set_icon(get_icon("Folder", "EditorIcons"));
		load->set_tooltip(TTR("Open Sample File(s)"));
	}

	if (p_what == NOTIFICATION_READY) {

		//		NodePath("/root")->connect("node_removed", this,"_node_removed",Vector<Variant>(),true);
	}

	if (p_what == NOTIFICATION_DRAW) {
	}
}

void SampleLibraryEditor::_file_load_request(const DVector<String> &p_path) {

	for (int i = 0; i < p_path.size(); i++) {

		String path = p_path[i];
		Ref<Sample> sample = ResourceLoader::load(path, "Sample");
		if (sample.is_null()) {
			dialog->set_text(TTR("ERROR: Couldn't load sample!"));
			dialog->set_title(TTR("Error!"));
			//dialog->get_cancel()->set_text("Close");
			dialog->get_ok()->set_text(TTR("Close"));
			dialog->popup_centered_minsize();
			return; ///beh should show an error i guess
		}
		String basename = path.get_file().basename();
		String name = basename;
		int counter = 0;
		while (sample_library->has_sample(name)) {
			counter++;
			name = basename + "_" + itos(counter);
		}

		undo_redo->create_action(TTR("Add Sample"));
		undo_redo->add_do_method(sample_library.operator->(), "add_sample", name, sample);
		undo_redo->add_undo_method(sample_library.operator->(), "remove_sample", name);
		undo_redo->add_do_method(this, "_update_library");
		undo_redo->add_undo_method(this, "_update_library");
		undo_redo->commit_action();
	}
}

void SampleLibraryEditor::_load_pressed() {

	file->popup_centered_ratio();
}

void SampleLibraryEditor::_button_pressed(Object *p_item, int p_column, int p_id) {

	TreeItem *ti = p_item->cast_to<TreeItem>();
	String name = ti->get_text(0);

	if (p_column == 0) { // Play/Stop

		String btn_type;
		if (!is_playing) {
			is_playing = true;
			btn_type = TTR("Stop");
			player->play(name, true);
			last_sample_playing = p_item;
			set_process(true);
		} else {
			player->stop_all();
			if (last_sample_playing != p_item) {
				TreeItem *tl = last_sample_playing->cast_to<TreeItem>();
				tl->set_button(p_column, 0, get_icon("Play", "EditorIcons"));
				btn_type = TTR("Stop");
				player->play(name, true);
				last_sample_playing = p_item;
			} else {
				btn_type = TTR("Play");
				is_playing = false;
			}
		}
		ti->set_button(p_column, 0, get_icon(btn_type, "EditorIcons"));
	} else if (p_column == 1) { // Edit

		get_tree()->get_root()->get_child(0)->call("_resource_selected", sample_library->get_sample(name));
	} else if (p_column == 6) { // Delete

		ti->select(0);
		_delete_pressed();
	}
}

void SampleLibraryEditor::_item_edited() {

	if (!tree->get_selected())
		return;

	TreeItem *s = tree->get_selected();

	if (tree->get_selected_column() == 0) { // Name
		// renamed
		String old_name = s->get_metadata(0);
		String new_name = s->get_text(0);
		if (old_name == new_name)
			return;

		if (new_name == "" || new_name.find("\\") != -1 || new_name.find("/") != -1 || sample_library->has_sample(new_name)) {

			s->set_text(0, old_name);
			return;
		}

		Ref<Sample> samp = sample_library->get_sample(old_name);
		undo_redo->create_action(TTR("Rename Sample"));
		undo_redo->add_do_method(sample_library.operator->(), "remove_sample", old_name);
		undo_redo->add_do_method(sample_library.operator->(), "add_sample", new_name, samp);
		undo_redo->add_undo_method(sample_library.operator->(), "remove_sample", new_name);
		undo_redo->add_undo_method(sample_library.operator->(), "add_sample", old_name, samp);
		undo_redo->add_do_method(this, "_update_library");
		undo_redo->add_undo_method(this, "_update_library");
		undo_redo->commit_action();

	} else if (tree->get_selected_column() == 3) { // Volume dB

		StringName n = s->get_text(0);
		sample_library->sample_set_volume_db(n, s->get_range(3));

	} else if (tree->get_selected_column() == 4) { // Pitch scale

		StringName n = s->get_text(0);
		sample_library->sample_set_pitch_scale(n, s->get_range(4));

	} else if (tree->get_selected_column() == 5) { // Priority

		StringName n = s->get_text(0);
		sample_library->sample_set_priority(n, s->get_range(5));
	}
}

void SampleLibraryEditor::_delete_pressed() {

	if (!tree->get_selected())
		return;

	String to_remove = tree->get_selected()->get_text(0);
	undo_redo->create_action(TTR("Delete Sample"));
	undo_redo->add_do_method(sample_library.operator->(), "remove_sample", to_remove);
	undo_redo->add_undo_method(sample_library.operator->(), "add_sample", to_remove, sample_library->get_sample(to_remove));
	undo_redo->add_do_method(this, "_update_library");
	undo_redo->add_undo_method(this, "_update_library");
	undo_redo->commit_action();
}

void SampleLibraryEditor::_update_library() {

	player->stop_all();

	tree->clear();
	tree->set_hide_root(true);
	TreeItem *root = tree->create_item(NULL);

	List<StringName> names;
	sample_library->get_sample_list(&names);
	names.sort_custom<StringName::AlphCompare>();

	for (List<StringName>::Element *E = names.front(); E; E = E->next()) {

		TreeItem *ti = tree->create_item(root);

		// Name + Play/Stop
		ti->set_cell_mode(0, TreeItem::CELL_MODE_STRING);
		ti->set_editable(0, true);
		ti->set_selectable(0, true);
		ti->set_text(0, E->get());
		ti->set_metadata(0, E->get());
		ti->add_button(0, get_icon("Play", "EditorIcons"));

		Ref<Sample> smp = sample_library->get_sample(E->get());

		// Preview/edit
		Ref<ImageTexture> preview(memnew(ImageTexture));
		preview->create(128, 16, Image::FORMAT_RGB);
		SampleEditor::generate_preview_texture(smp, preview);
		ti->set_cell_mode(1, TreeItem::CELL_MODE_ICON);
		ti->set_selectable(1, false);
		ti->set_editable(1, false);
		ti->set_icon(1, preview);
		ti->add_button(1, get_icon("Edit", "EditorIcons"));

		// Format
		ti->set_cell_mode(2, TreeItem::CELL_MODE_STRING);
		ti->set_editable(2, false);
		ti->set_selectable(2, false);
		ti->set_text(2, String() + (smp != NULL ? (smp->get_format() == Sample::FORMAT_PCM16 ? TTR("16 Bits") + ", " : (smp->get_format() == Sample::FORMAT_PCM8 ? TTR("8 Bits") + ", " : "IMA-ADPCM,")) + (smp->is_stereo() ? TTR("Stereo") : TTR("Mono")) : TTR("Invalid")));

		// Volume dB
		ti->set_cell_mode(3, TreeItem::CELL_MODE_RANGE);
		ti->set_range_config(3, -60, 24, 0.01);
		ti->set_selectable(3, true);
		ti->set_editable(3, true);
		ti->set_range(3, sample_library->sample_get_volume_db(E->get()));

		// Pitch scale
		ti->set_cell_mode(4, TreeItem::CELL_MODE_RANGE);
		ti->set_range_config(4, 0.01, 100, 0.01);
		ti->set_selectable(4, true);
		ti->set_editable(4, true);
		ti->set_range(4, sample_library->sample_get_pitch_scale(E->get()));

		// Priority
		ti->set_cell_mode(5, TreeItem::CELL_MODE_RANGE);
		ti->set_range_config(5, 0, 100, 1);
		ti->set_selectable(5, true);
		ti->set_editable(5, true);
		ti->set_range(5, sample_library->sample_get_priority(E->get()));

		// Delete
		ti->set_cell_mode(6, TreeItem::CELL_MODE_STRING);
		ti->add_button(6, get_icon("Remove", "EditorIcons"));
	}

	//player->add_sample("default",sample);
}

void SampleLibraryEditor::edit(Ref<SampleLibrary> p_sample_library) {

	sample_library = p_sample_library;

	if (!sample_library.is_null()) {
		player->set_sample_library(sample_library);
		_update_library();
	} else {

		hide();
	}
}

Variant SampleLibraryEditor::get_drag_data_fw(const Point2 &p_point, Control *p_from) {

	TreeItem *ti = tree->get_item_at_pos(p_point);
	if (!ti)
		return Variant();

	String name = ti->get_metadata(0);

	RES res = sample_library->get_sample(name);
	if (!res.is_valid())
		return Variant();

	return EditorNode::get_singleton()->drag_resource(res, p_from);
}

bool SampleLibraryEditor::can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const {

	Dictionary d = p_data;

	if (!d.has("type"))
		return false;

	if (d.has("from") && (Object *)(d["from"]) == tree)
		return false;

	if (String(d["type"]) == "resource" && d.has("resource")) {
		RES r = d["resource"];

		Ref<Sample> sample = r;

		if (sample.is_valid()) {

			return true;
		}
	}

	if (String(d["type"]) == "files") {

		Vector<String> files = d["files"];

		if (files.size() == 0)
			return false;

		for (int i = 0; i < files.size(); i++) {
			String file = files[0];
			String ftype = EditorFileSystem::get_singleton()->get_file_type(file);

			if (ftype != "Sample") {
				return false;
			}
		}

		return true;
	}
	return false;
}

void SampleLibraryEditor::drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) {

	if (!can_drop_data_fw(p_point, p_data, p_from))
		return;

	Dictionary d = p_data;

	if (!d.has("type"))
		return;

	if (String(d["type"]) == "resource" && d.has("resource")) {
		RES r = d["resource"];

		Ref<Sample> sample = r;

		if (sample.is_valid()) {

			String basename;
			if (sample->get_name() != "") {
				basename = sample->get_name();
			} else if (sample->get_path().is_resource_file()) {
				basename = sample->get_path().basename();
			} else {
				basename = "Sample";
			}

			String name = basename;
			int counter = 0;
			while (sample_library->has_sample(name)) {
				counter++;
				name = basename + "_" + itos(counter);
			}

			undo_redo->create_action(TTR("Add Sample"));
			undo_redo->add_do_method(sample_library.operator->(), "add_sample", name, sample);
			undo_redo->add_undo_method(sample_library.operator->(), "remove_sample", name);
			undo_redo->add_do_method(this, "_update_library");
			undo_redo->add_undo_method(this, "_update_library");
			undo_redo->commit_action();
		}
	}

	if (String(d["type"]) == "files") {

		DVector<String> files = d["files"];

		_file_load_request(files);
	}
}

void SampleLibraryEditor::_bind_methods() {

	ObjectTypeDB::bind_method(_MD("_input_event"), &SampleLibraryEditor::_input_event);
	ObjectTypeDB::bind_method(_MD("_load_pressed"), &SampleLibraryEditor::_load_pressed);
	ObjectTypeDB::bind_method(_MD("_item_edited"), &SampleLibraryEditor::_item_edited);
	ObjectTypeDB::bind_method(_MD("_delete_pressed"), &SampleLibraryEditor::_delete_pressed);
	ObjectTypeDB::bind_method(_MD("_file_load_request"), &SampleLibraryEditor::_file_load_request);
	ObjectTypeDB::bind_method(_MD("_update_library"), &SampleLibraryEditor::_update_library);
	ObjectTypeDB::bind_method(_MD("_button_pressed"), &SampleLibraryEditor::_button_pressed);

	ObjectTypeDB::bind_method(_MD("get_drag_data_fw"), &SampleLibraryEditor::get_drag_data_fw);
	ObjectTypeDB::bind_method(_MD("can_drop_data_fw"), &SampleLibraryEditor::can_drop_data_fw);
	ObjectTypeDB::bind_method(_MD("drop_data_fw"), &SampleLibraryEditor::drop_data_fw);
}

SampleLibraryEditor::SampleLibraryEditor() {

	player = memnew(SamplePlayer);
	add_child(player);
	add_style_override("panel", get_stylebox("panel", "Panel"));

	load = memnew(Button);
	load->set_pos(Point2(5, 5));
	load->set_size(Size2(1, 1));
	add_child(load);

	file = memnew(EditorFileDialog);
	add_child(file);
	List<String> extensions;
	ResourceLoader::get_recognized_extensions_for_type("Sample", &extensions);
	for (int i = 0; i < extensions.size(); i++)
		file->add_filter("*." + extensions[i]);
	file->set_mode(EditorFileDialog::MODE_OPEN_FILES);

	tree = memnew(Tree);
	tree->set_columns(7);
	add_child(tree);
	tree->set_anchor_and_margin(MARGIN_LEFT, ANCHOR_BEGIN, 5);
	tree->set_anchor_and_margin(MARGIN_RIGHT, ANCHOR_END, 5);
	tree->set_anchor_and_margin(MARGIN_TOP, ANCHOR_BEGIN, 30);
	tree->set_anchor_and_margin(MARGIN_BOTTOM, ANCHOR_END, 5);
	tree->set_column_titles_visible(true);
	tree->set_column_title(0, TTR("Name"));
	tree->set_column_title(1, TTR("Preview"));
	tree->set_column_title(2, TTR("Format"));
	tree->set_column_title(3, "dB");
	tree->set_column_title(4, TTR("Pitch"));
	tree->set_column_title(5, TTR("Priority"));
	tree->set_column_title(6, "");

	tree->set_column_min_width(1, 150);
	tree->set_column_min_width(2, 100);
	tree->set_column_min_width(3, 50);
	tree->set_column_min_width(4, 50);
	tree->set_column_min_width(5, 60);
	tree->set_column_min_width(6, 32);
	tree->set_column_expand(1, false);
	tree->set_column_expand(2, false);
	tree->set_column_expand(3, false);
	tree->set_column_expand(4, false);
	tree->set_column_expand(5, false);
	tree->set_column_expand(6, false);

	tree->set_drag_forwarding(this);

	dialog = memnew(ConfirmationDialog);
	add_child(dialog);

	tree->connect("button_pressed", this, "_button_pressed");
	load->connect("pressed", this, "_load_pressed");
	file->connect("files_selected", this, "_file_load_request");
	tree->connect("item_edited", this, "_item_edited");

	is_playing = false;
}

void SampleLibraryEditorPlugin::edit(Object *p_object) {

	sample_library_editor->set_undo_redo(&get_undo_redo());
	SampleLibrary *s = p_object->cast_to<SampleLibrary>();
	if (!s)
		return;

	sample_library_editor->edit(Ref<SampleLibrary>(s));
}

bool SampleLibraryEditorPlugin::handles(Object *p_object) const {

	return p_object->is_type("SampleLibrary");
}

void SampleLibraryEditorPlugin::make_visible(bool p_visible) {

	if (p_visible) {
		//sample_library_editor->show();
		button->show();
		editor->make_bottom_panel_item_visible(sample_library_editor);
		//		sample_library_editor->set_process(true);
	} else {

		if (sample_library_editor->is_visible())
			editor->hide_bottom_panel();
		button->hide();

		//		sample_library_editor->set_process(false);
	}
}

SampleLibraryEditorPlugin::SampleLibraryEditorPlugin(EditorNode *p_node) {

	editor = p_node;
	sample_library_editor = memnew(SampleLibraryEditor);

	//editor->get_viewport()->add_child(sample_library_editor);
	sample_library_editor->set_custom_minimum_size(Size2(0, 250));
	button = p_node->add_bottom_panel_item("SampleLibrary", sample_library_editor);
	button->hide();

	//sample_library_editor->set_area_as_parent_rect();
	//	sample_library_editor->set_anchor( MARGIN_TOP, Control::ANCHOR_END);
	//	sample_library_editor->set_margin( MARGIN_TOP, 120 );
	//sample_library_editor->hide();
}

SampleLibraryEditorPlugin::~SampleLibraryEditorPlugin() {
}