/**************************************************************************/
/*  project_manager.h                                                     */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* 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      */
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/**************************************************************************/

#ifndef PROJECT_MANAGER_H
#define PROJECT_MANAGER_H

#include "scene/gui/dialogs.h"
#include "scene/gui/scroll_container.h"

class CheckBox;
class EditorAbout;
class EditorAssetLibrary;
class EditorFileDialog;
class EditorTitleBar;
class HFlowContainer;
class LineEdit;
class LinkButton;
class MarginContainer;
class OptionButton;
class PanelContainer;
class ProjectDialog;
class ProjectList;
class QuickSettingsDialog;
class RichTextLabel;
class TabContainer;
class VBoxContainer;

class ProjectManager : public Control {
	GDCLASS(ProjectManager, Control);

	static ProjectManager *singleton;

	// Utility data.

	static Ref<Texture2D> _file_dialog_get_icon(const String &p_path);
	static Ref<Texture2D> _file_dialog_get_thumbnail(const String &p_path);

	HashMap<String, Ref<Texture2D>> icon_type_cache;

	void _build_icon_type_cache(Ref<Theme> p_theme);

	// Main layout.

	Ref<Theme> theme;

	void _update_size_limits();
	void _update_theme(bool p_skip_creation = false);
	void _titlebar_resized();

	MarginContainer *root_container = nullptr;
	Panel *background_panel = nullptr;
	VBoxContainer *main_vbox = nullptr;

	EditorTitleBar *title_bar = nullptr;
	Control *left_menu_spacer = nullptr;
	Control *left_spacer = nullptr;
	Control *right_menu_spacer = nullptr;
	Control *right_spacer = nullptr;
	Button *title_bar_logo = nullptr;
	HBoxContainer *main_view_toggles = nullptr;
	Button *quick_settings_button = nullptr;

	enum MainViewTab {
		MAIN_VIEW_PROJECTS,
		MAIN_VIEW_ASSETLIB,
		MAIN_VIEW_MAX
	};

	MainViewTab current_main_view = MAIN_VIEW_PROJECTS;
	HashMap<MainViewTab, Control *> main_view_map;
	HashMap<MainViewTab, Button *> main_view_toggle_map;

	PanelContainer *main_view_container = nullptr;
	Ref<ButtonGroup> main_view_toggles_group;

	Button *_add_main_view(MainViewTab p_id, const String &p_name, const Ref<Texture2D> &p_icon, Control *p_view_control);
	void _set_main_view_icon(MainViewTab p_id, const Ref<Texture2D> &p_icon);
	void _select_main_view(int p_id);

	VBoxContainer *local_projects_vb = nullptr;
	EditorAssetLibrary *asset_library = nullptr;

	EditorAbout *about_dialog = nullptr;

	void _show_about();
	void _open_asset_library_confirmed();

	AcceptDialog *error_dialog = nullptr;

	void _show_error(const String &p_message, const Size2 &p_min_size = Size2());
	void _dim_window();

	// Quick settings.

	QuickSettingsDialog *quick_settings_dialog = nullptr;

	void _show_quick_settings();
	void _restart_confirmed();

	// Footer.

	LinkButton *version_btn = nullptr;

	void _version_button_pressed();

	// Project list.

	VBoxContainer *empty_list_placeholder = nullptr;
	Button *empty_list_create_project = nullptr;
	Button *empty_list_import_project = nullptr;
	Button *empty_list_open_assetlib = nullptr;
	Label *empty_list_online_warning = nullptr;

	void _update_list_placeholder();

	ProjectList *project_list = nullptr;

	LineEdit *search_box = nullptr;
	Label *loading_label = nullptr;
	OptionButton *filter_option = nullptr;
	PanelContainer *project_list_panel = nullptr;

	Button *create_btn = nullptr;
	Button *import_btn = nullptr;
	Button *scan_btn = nullptr;
	Button *open_btn = nullptr;
	Button *run_btn = nullptr;
	Button *rename_btn = nullptr;
	Button *manage_tags_btn = nullptr;
	Button *erase_btn = nullptr;
	Button *erase_missing_btn = nullptr;

	EditorFileDialog *scan_dir = nullptr;

	ConfirmationDialog *erase_ask = nullptr;
	Label *erase_ask_label = nullptr;
	// Comment out for now until we have a better warning system to
	// ensure users delete their project only.
	//CheckBox *delete_project_contents = nullptr;
	ConfirmationDialog *erase_missing_ask = nullptr;
	ConfirmationDialog *multi_open_ask = nullptr;
	ConfirmationDialog *multi_run_ask = nullptr;

	ProjectDialog *project_dialog = nullptr;

	void _scan_projects();
	void _run_project();
	void _run_project_confirm();
	void _open_selected_projects();
	void _open_selected_projects_ask();

	void _install_project(const String &p_zip_path, const String &p_title);
	void _import_project();
	void _new_project();
	void _rename_project();
	void _erase_project();
	void _erase_missing_projects();
	void _erase_project_confirm();
	void _erase_missing_projects_confirm();
	void _update_project_buttons();

	void _on_project_created(const String &dir);
	void _on_projects_updated();

	void _on_order_option_changed(int p_idx);
	void _on_search_term_changed(const String &p_term);
	void _on_search_term_submitted(const String &p_text);

	// Project tag management.

	HashSet<String> tag_set;
	PackedStringArray current_project_tags;
	PackedStringArray forbidden_tag_characters{ "/", "\\", "-" };

	ConfirmationDialog *tag_manage_dialog = nullptr;
	HFlowContainer *project_tags = nullptr;
	HFlowContainer *all_tags = nullptr;
	Label *tag_edit_error = nullptr;

	Button *create_tag_btn = nullptr;
	ConfirmationDialog *create_tag_dialog = nullptr;
	LineEdit *new_tag_name = nullptr;
	Label *tag_error = nullptr;

	void _manage_project_tags();
	void _add_project_tag(const String &p_tag);
	void _delete_project_tag(const String &p_tag);
	void _apply_project_tags();
	void _set_new_tag_name(const String p_name);
	void _create_new_tag();

	// Project converter/migration tool.

	ConfirmationDialog *ask_full_convert_dialog = nullptr;
	ConfirmationDialog *ask_update_settings = nullptr;
	Button *full_convert_button = nullptr;

	void _full_convert_button_pressed();
	void _perform_full_project_conversion();

	// Input and I/O.

	virtual void shortcut_input(const Ref<InputEvent> &p_ev) override;

	void _files_dropped(PackedStringArray p_files);

protected:
	void _notification(int p_what);

public:
	static ProjectManager *get_singleton() { return singleton; }

	// Project list.

	LineEdit *get_search_box();

	// Project tag management.

	void add_new_tag(const String &p_tag);

	ProjectManager();
	~ProjectManager();
};

#endif // PROJECT_MANAGER_H