/**************************************************************************/
/*  translation_server.h                                                  */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#ifndef TRANSLATION_SERVER_H
#define TRANSLATION_SERVER_H

#include "core/string/translation.h"
#include "core/string/translation_domain.h"

class TranslationServer : public Object {
	GDCLASS(TranslationServer, Object);

	String locale = "en";
	String fallback;

	Ref<TranslationDomain> main_domain;
	HashMap<StringName, Ref<TranslationDomain>> custom_domains;

	Ref<Translation> tool_translation;
	Ref<Translation> property_translation;
	Ref<Translation> doc_translation;
	Ref<Translation> extractable_translation;

	bool enabled = true;

	bool pseudolocalization_enabled = false;
	bool pseudolocalization_accents_enabled = false;
	bool pseudolocalization_double_vowels_enabled = false;
	bool pseudolocalization_fake_bidi_enabled = false;
	bool pseudolocalization_override_enabled = false;
	bool pseudolocalization_skip_placeholders_enabled = false;
	float expansion_ratio = 0.0;
	String pseudolocalization_prefix;
	String pseudolocalization_suffix;

	StringName tool_pseudolocalize(const StringName &p_message) const;
	String get_override_string(String &p_message) const;
	String double_vowels(String &p_message) const;
	String replace_with_accented_string(String &p_message) const;
	String wrap_with_fakebidi_characters(String &p_message) const;
	String add_padding(const String &p_message, int p_length) const;
	const char32_t *get_accented_version(char32_t p_character) const;
	bool is_placeholder(String &p_message, int p_index) const;

	static TranslationServer *singleton;
	bool _load_translations(const String &p_from);
	String _standardize_locale(const String &p_locale, bool p_add_defaults) const;

	static void _bind_methods();

	struct LocaleScriptInfo {
		String name;
		String script;
		String default_country;
		HashSet<String> supported_countries;
	};
	static Vector<LocaleScriptInfo> locale_script_info;

	static HashMap<String, String> language_map;
	static HashMap<String, String> script_map;
	static HashMap<String, String> locale_rename_map;
	static HashMap<String, String> country_name_map;
	static HashMap<String, String> country_rename_map;
	static HashMap<String, String> variant_map;

	void init_locale_info();

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

	void set_enabled(bool p_enabled) { enabled = p_enabled; }
	_FORCE_INLINE_ bool is_enabled() const { return enabled; }

	void set_locale(const String &p_locale);
	String get_locale() const;
	String get_fallback_locale() const;
	Ref<Translation> get_translation_object(const String &p_locale);

	Vector<String> get_all_languages() const;
	String get_language_name(const String &p_language) const;

	Vector<String> get_all_scripts() const;
	String get_script_name(const String &p_script) const;

	Vector<String> get_all_countries() const;
	String get_country_name(const String &p_country) const;

	String get_locale_name(const String &p_locale) const;

	PackedStringArray get_loaded_locales() const;

	void add_translation(const Ref<Translation> &p_translation);
	void remove_translation(const Ref<Translation> &p_translation);

	StringName translate(const StringName &p_message, const StringName &p_context = "") const;
	StringName translate_plural(const StringName &p_message, const StringName &p_message_plural, int p_n, const StringName &p_context = "") const;

	StringName pseudolocalize(const StringName &p_message) const;

	bool is_pseudolocalization_enabled() const;
	void set_pseudolocalization_enabled(bool p_enabled);
	void reload_pseudolocalization();

	String standardize_locale(const String &p_locale) const;

	int compare_locales(const String &p_locale_a, const String &p_locale_b) const;

	String get_tool_locale();
	void set_tool_translation(const Ref<Translation> &p_translation);
	Ref<Translation> get_tool_translation() const;
	StringName tool_translate(const StringName &p_message, const StringName &p_context = "") const;
	StringName tool_translate_plural(const StringName &p_message, const StringName &p_message_plural, int p_n, const StringName &p_context = "") const;
	void set_property_translation(const Ref<Translation> &p_translation);
	StringName property_translate(const StringName &p_message, const StringName &p_context = "") const;
	void set_doc_translation(const Ref<Translation> &p_translation);
	StringName doc_translate(const StringName &p_message, const StringName &p_context = "") const;
	StringName doc_translate_plural(const StringName &p_message, const StringName &p_message_plural, int p_n, const StringName &p_context = "") const;
	void set_extractable_translation(const Ref<Translation> &p_translation);
	StringName extractable_translate(const StringName &p_message, const StringName &p_context = "") const;
	StringName extractable_translate_plural(const StringName &p_message, const StringName &p_message_plural, int p_n, const StringName &p_context = "") const;

	bool has_domain(const StringName &p_domain) const;
	Ref<TranslationDomain> get_or_add_domain(const StringName &p_domain);
	void remove_domain(const StringName &p_domain);

	void setup();

	void clear();

	void load_translations();

#ifdef TOOLS_ENABLED
	virtual void get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const override;
#endif // TOOLS_ENABLED

	TranslationServer();
};

#endif // TRANSLATION_SERVER_H