/*************************************************************************/
/*  gdnative_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 */
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/* 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  */
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/*************************************************************************/

#ifdef TOOLS_ENABLED
#include "gdnative_library_editor_plugin.h"
#include "gdnative.h"

#include "editor/editor_scale.h"

void GDNativeLibraryEditor::edit(Ref<GDNativeLibrary> p_library) {
	library = p_library;
	Ref<ConfigFile> config = p_library->get_config_file();

	for (Map<String, NativePlatformConfig>::Element *E = platforms.front(); E; E = E->next()) {
		for (List<String>::Element *it = E->value().entries.front(); it; it = it->next()) {

			String target = E->key() + "." + it->get();
			TargetConfig ecfg;
			ecfg.library = config->get_value("entry", target, "");
			ecfg.dependencies = config->get_value("dependencies", target, Array());
			entry_configs[target] = ecfg;
		}
	}

	_update_tree();
}

void GDNativeLibraryEditor::_bind_methods() {

	ClassDB::bind_method("_on_item_button", &GDNativeLibraryEditor::_on_item_button);
	ClassDB::bind_method("_on_library_selected", &GDNativeLibraryEditor::_on_library_selected);
	ClassDB::bind_method("_on_dependencies_selected", &GDNativeLibraryEditor::_on_dependencies_selected);
	ClassDB::bind_method("_on_filter_selected", &GDNativeLibraryEditor::_on_filter_selected);
	ClassDB::bind_method("_on_item_collapsed", &GDNativeLibraryEditor::_on_item_collapsed);
	ClassDB::bind_method("_on_item_activated", &GDNativeLibraryEditor::_on_item_activated);
	ClassDB::bind_method("_on_create_new_entry", &GDNativeLibraryEditor::_on_create_new_entry);
}

void GDNativeLibraryEditor::_update_tree() {

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

	PopupMenu *filter_list = filter->get_popup();
	String text = "";
	for (int i = 0; i < filter_list->get_item_count(); i++) {

		if (!filter_list->is_item_checked(i)) {
			continue;
		}
		Map<String, NativePlatformConfig>::Element *E = platforms.find(filter_list->get_item_metadata(i));
		if (!text.empty()) {
			text += ", ";
		}
		text += E->get().name;

		TreeItem *platform = tree->create_item(root);
		platform->set_text(0, E->get().name);
		platform->set_metadata(0, E->get().library_extension);

		platform->set_custom_bg_color(0, get_color("prop_category", "Editor"));
		platform->set_custom_bg_color(1, get_color("prop_category", "Editor"));
		platform->set_custom_bg_color(2, get_color("prop_category", "Editor"));
		platform->set_selectable(0, false);
		platform->set_expand_right(0, true);

		for (List<String>::Element *it = E->value().entries.front(); it; it = it->next()) {

			String target = E->key() + "." + it->get();
			TreeItem *bit = tree->create_item(platform);

			bit->set_text(0, it->get());
			bit->set_metadata(0, target);
			bit->set_selectable(0, false);
			bit->set_custom_bg_color(0, get_color("prop_subsection", "Editor"));

			bit->add_button(1, get_icon("Folder", "EditorIcons"), BUTTON_SELECT_LIBRARY, false, TTR("Select the dynamic library for this entry"));
			String file = entry_configs[target].library;
			if (!file.empty()) {
				bit->add_button(1, get_icon("Clear", "EditorIcons"), BUTTON_CLEAR_LIBRARY, false, TTR("Clear"));
			}
			bit->set_text(1, file);

			bit->add_button(2, get_icon("Folder", "EditorIcons"), BUTTON_SELECT_DEPENDENCES, false, TTR("Select dependencies of the library for this entry"));
			Array files = entry_configs[target].dependencies;
			if (files.size()) {
				bit->add_button(2, get_icon("Clear", "EditorIcons"), BUTTON_CLEAR_DEPENDENCES, false, TTR("Clear"));
			}
			bit->set_text(2, Variant(files));

			bit->add_button(3, get_icon("MoveUp", "EditorIcons"), BUTTON_MOVE_UP, false, TTR("Move Up"));
			bit->add_button(3, get_icon("MoveDown", "EditorIcons"), BUTTON_MOVE_DOWN, false, TTR("Move Down"));
			bit->add_button(3, get_icon("Remove", "EditorIcons"), BUTTON_ERASE_ENTRY, false, TTR("Remove current entry"));
		}

		TreeItem *new_arch = tree->create_item(platform);
		new_arch->set_text(0, TTR("Double click to create a new entry"));
		new_arch->set_text_align(0, TreeItem::ALIGN_CENTER);
		new_arch->set_custom_color(0, get_color("accent_color", "Editor"));
		new_arch->set_expand_right(0, true);
		new_arch->set_metadata(1, E->key());

		platform->set_collapsed(collapsed_items.find(E->get().name) != NULL);
	}
	filter->set_text(text);
}

void GDNativeLibraryEditor::_on_item_button(Object *item, int column, int id) {

	String target = Object::cast_to<TreeItem>(item)->get_metadata(0);
	String platform = target.substr(0, target.find("."));
	String entry = target.substr(platform.length() + 1, target.length());
	String section = (id == BUTTON_SELECT_DEPENDENCES || id == BUTTON_CLEAR_DEPENDENCES) ? "dependencies" : "entry";

	if (id == BUTTON_SELECT_LIBRARY || id == BUTTON_SELECT_DEPENDENCES) {

		EditorFileDialog::Mode mode = EditorFileDialog::MODE_OPEN_FILE;
		if (id == BUTTON_SELECT_DEPENDENCES)
			mode = EditorFileDialog::MODE_OPEN_FILES;

		file_dialog->set_meta("target", target);
		file_dialog->set_meta("section", section);
		file_dialog->clear_filters();
		file_dialog->add_filter(Object::cast_to<TreeItem>(item)->get_parent()->get_metadata(0));
		file_dialog->set_mode(mode);
		file_dialog->popup_centered_ratio();

	} else if (id == BUTTON_CLEAR_LIBRARY) {
		_set_target_value(section, target, "");
	} else if (id == BUTTON_CLEAR_DEPENDENCES) {
		_set_target_value(section, target, Array());
	} else if (id == BUTTON_ERASE_ENTRY) {
		_erase_entry(platform, entry);
	} else if (id == BUTTON_MOVE_UP || id == BUTTON_MOVE_DOWN) {
		_move_entry(platform, entry, id);
	}
}

void GDNativeLibraryEditor::_on_library_selected(const String &file) {

	_set_target_value(file_dialog->get_meta("section"), file_dialog->get_meta("target"), file);
}

void GDNativeLibraryEditor::_on_dependencies_selected(const PackedStringArray &files) {

	_set_target_value(file_dialog->get_meta("section"), file_dialog->get_meta("target"), files);
}

void GDNativeLibraryEditor::_on_filter_selected(int index) {

	PopupMenu *filter_list = filter->get_popup();
	filter_list->set_item_checked(index, !filter_list->is_item_checked(index));
	_update_tree();
}

void GDNativeLibraryEditor::_on_item_collapsed(Object *p_item) {

	TreeItem *item = Object::cast_to<TreeItem>(p_item);
	String name = item->get_text(0);

	if (item->is_collapsed()) {
		collapsed_items.insert(name);
	} else if (Set<String>::Element *e = collapsed_items.find(name)) {
		collapsed_items.erase(e);
	}
}

void GDNativeLibraryEditor::_on_item_activated() {

	TreeItem *item = tree->get_selected();
	if (item && tree->get_selected_column() == 0 && item->get_metadata(0).get_type() == Variant::NIL) {
		new_architecture_dialog->set_meta("platform", item->get_metadata(1));
		new_architecture_dialog->popup_centered();
	}
}

void GDNativeLibraryEditor::_on_create_new_entry() {

	String platform = new_architecture_dialog->get_meta("platform");
	String entry = new_architecture_input->get_text().strip_edges();
	if (!entry.empty()) {
		platforms[platform].entries.push_back(entry);
		_update_tree();
	}
}

void GDNativeLibraryEditor::_set_target_value(const String &section, const String &target, Variant file) {
	if (section == "entry")
		entry_configs[target].library = file;
	else if (section == "dependencies")
		entry_configs[target].dependencies = file;
	_translate_to_config_file();
	_update_tree();
}

void GDNativeLibraryEditor::_erase_entry(const String &platform, const String &entry) {

	if (platforms.has(platform)) {
		if (List<String>::Element *E = platforms[platform].entries.find(entry)) {

			String target = platform + "." + entry;

			platforms[platform].entries.erase(E);
			_set_target_value("entry", target, "");
			_set_target_value("dependencies", target, Array());
			_translate_to_config_file();
			_update_tree();
		}
	}
}

void GDNativeLibraryEditor::_move_entry(const String &platform, const String &entry, int dir) {
	if (List<String>::Element *E = platforms[platform].entries.find(entry)) {
		if (E->prev() && dir == BUTTON_MOVE_UP) {
			platforms[platform].entries.insert_before(E->prev(), E->get());
			platforms[platform].entries.erase(E);
		} else if (E->next() && dir == BUTTON_MOVE_DOWN) {
			platforms[platform].entries.insert_after(E->next(), E->get());
			platforms[platform].entries.erase(E);
		}
		_translate_to_config_file();
		_update_tree();
	}
}

void GDNativeLibraryEditor::_translate_to_config_file() {

	if (!library.is_null()) {

		Ref<ConfigFile> config = library->get_config_file();
		config->erase_section("entry");
		config->erase_section("dependencies");

		for (Map<String, NativePlatformConfig>::Element *E = platforms.front(); E; E = E->next()) {
			for (List<String>::Element *it = E->value().entries.front(); it; it = it->next()) {

				String target = E->key() + "." + it->get();
				if (entry_configs[target].library.empty() && entry_configs[target].dependencies.empty())
					continue;

				config->set_value("entry", target, entry_configs[target].library);
				config->set_value("dependencies", target, entry_configs[target].dependencies);
			}
		}

		library->_change_notify();
	}
}

GDNativeLibraryEditor::GDNativeLibraryEditor() {

	{ // Define platforms
		NativePlatformConfig platform_windows;
		platform_windows.name = "Windows";
		platform_windows.entries.push_back("64");
		platform_windows.entries.push_back("32");
		platform_windows.library_extension = "*.dll";
		platforms["Windows"] = platform_windows;

		NativePlatformConfig platform_linux;
		platform_linux.name = "Linux/X11";
		platform_linux.entries.push_back("64");
		platform_linux.entries.push_back("32");
		platform_linux.library_extension = "*.so";
		platforms["X11"] = platform_linux;

		NativePlatformConfig platform_osx;
		platform_osx.name = "Mac OSX";
		platform_osx.entries.push_back("64");
		platform_osx.entries.push_back("32");
		platform_osx.library_extension = "*.dylib";
		platforms["OSX"] = platform_osx;

		NativePlatformConfig platform_haiku;
		platform_haiku.name = "Haiku";
		platform_haiku.entries.push_back("64");
		platform_haiku.entries.push_back("32");
		platform_haiku.library_extension = "*.so";
		platforms["Haiku"] = platform_haiku;

		NativePlatformConfig platform_uwp;
		platform_uwp.name = "Windows Universal";
		platform_uwp.entries.push_back("arm");
		platform_uwp.entries.push_back("32");
		platform_uwp.entries.push_back("64");
		platform_uwp.library_extension = "*.dll";
		platforms["UWP"] = platform_uwp;

		NativePlatformConfig platform_android;
		platform_android.name = "Android";
		platform_android.entries.push_back("armeabi-v7a");
		platform_android.entries.push_back("arm64-v8a");
		platform_android.entries.push_back("x86");
		platform_android.entries.push_back("x86_64");
		platform_android.library_extension = "*.so";
		platforms["Android"] = platform_android;

		//		TODO: Javascript platform is not supported yet
		//		NativePlatformConfig platform_html5;
		//		platform_html5.name = "HTML5";
		//		platform_html5.library_extension = "*.wasm";
		//		platforms["Javascript"] = platform_html5;

		NativePlatformConfig platform_ios;
		platform_ios.name = "iOS";
		platform_ios.entries.push_back("armv7");
		platform_ios.entries.push_back("arm64");
		platform_ios.library_extension = "*.dylib";
		platforms["iOS"] = platform_ios;
	}

	VBoxContainer *container = memnew(VBoxContainer);
	add_child(container);
	container->set_anchors_and_margins_preset(PRESET_WIDE);

	HBoxContainer *hbox = memnew(HBoxContainer);
	container->add_child(hbox);
	Label *label = memnew(Label);
	label->set_text(TTR("Platform:"));
	hbox->add_child(label);
	filter = memnew(MenuButton);
	filter->set_h_size_flags(SIZE_EXPAND_FILL);
	filter->set_text_align(filter->ALIGN_LEFT);
	hbox->add_child(filter);
	PopupMenu *filter_list = filter->get_popup();
	filter_list->set_hide_on_checkable_item_selection(false);

	int idx = 0;
	for (Map<String, NativePlatformConfig>::Element *E = platforms.front(); E; E = E->next()) {
		filter_list->add_check_item(E->get().name, idx);
		filter_list->set_item_metadata(idx, E->key());
		filter_list->set_item_checked(idx, true);
		idx += 1;
	}
	filter_list->connect("index_pressed", this, "_on_filter_selected");

	tree = memnew(Tree);
	container->add_child(tree);
	tree->set_v_size_flags(SIZE_EXPAND_FILL);
	tree->set_hide_root(true);
	tree->set_column_titles_visible(true);
	tree->set_columns(4);
	tree->set_column_expand(0, false);
	tree->set_column_min_width(0, int(200 * EDSCALE));
	tree->set_column_title(0, TTR("Platform"));
	tree->set_column_title(1, TTR("Dynamic Library"));
	tree->set_column_title(2, TTR("Dependencies"));
	tree->set_column_expand(3, false);
	tree->set_column_min_width(3, int(110 * EDSCALE));
	tree->connect("button_pressed", this, "_on_item_button");
	tree->connect("item_collapsed", this, "_on_item_collapsed");
	tree->connect("item_activated", this, "_on_item_activated");

	file_dialog = memnew(EditorFileDialog);
	file_dialog->set_access(EditorFileDialog::ACCESS_RESOURCES);
	file_dialog->set_resizable(true);
	add_child(file_dialog);
	file_dialog->connect("file_selected", this, "_on_library_selected");
	file_dialog->connect("files_selected", this, "_on_dependencies_selected");

	new_architecture_dialog = memnew(ConfirmationDialog);
	add_child(new_architecture_dialog);
	new_architecture_dialog->set_title(TTR("Add an architecture entry"));
	new_architecture_input = memnew(LineEdit);
	new_architecture_dialog->add_child(new_architecture_input);
	new_architecture_dialog->set_custom_minimum_size(Vector2(300, 80) * EDSCALE);
	new_architecture_input->set_anchors_and_margins_preset(PRESET_HCENTER_WIDE, PRESET_MODE_MINSIZE, 5 * EDSCALE);
	new_architecture_dialog->get_ok()->connect("pressed", this, "_on_create_new_entry");
}

void GDNativeLibraryEditorPlugin::edit(Object *p_node) {

	Ref<GDNativeLibrary> new_library = Object::cast_to<GDNativeLibrary>(p_node);
	if (new_library.is_valid())
		library_editor->edit(new_library);
}

bool GDNativeLibraryEditorPlugin::handles(Object *p_node) const {

	return p_node->is_class("GDNativeLibrary");
}

void GDNativeLibraryEditorPlugin::make_visible(bool p_visible) {

	if (p_visible) {
		button->show();
		EditorNode::get_singleton()->make_bottom_panel_item_visible(library_editor);

	} else {
		if (library_editor->is_visible_in_tree())
			EditorNode::get_singleton()->hide_bottom_panel();
		button->hide();
	}
}

GDNativeLibraryEditorPlugin::GDNativeLibraryEditorPlugin(EditorNode *p_node) {

	library_editor = memnew(GDNativeLibraryEditor);
	library_editor->set_custom_minimum_size(Size2(0, 250 * EDSCALE));
	button = p_node->add_bottom_panel_item(TTR("GDNativeLibrary"), library_editor);
	button->hide();
}

#endif