/*
** font-binding.cpp
**
** This file is part of mkxp.
**
** Copyright (C) 2013 Jonas Kulla <Nyocurio@gmail.com>
**
** mkxp 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 2 of the License, or
** (at your option) any later version.
**
** mkxp 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 mkxp.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "font.h"
#include "binding-util.h"
#include "binding-types.h"
#include "exception.h"
#include "sharedstate.h"

#include <string.h>

static void collectStrings(VALUE obj, std::vector<std::string> &out){
	if (RB_TYPE_P(obj, RUBY_T_STRING)){
		out.push_back(RSTRING_PTR(obj));
	}
	else if (RB_TYPE_P(obj, RUBY_T_ARRAY)){
		for (long i = 0; i < RARRAY_LEN(obj); ++i){
			VALUE str = rb_ary_entry(obj, i);

			/* Non-string objects are tolerated (ignored) */
			if (!RB_TYPE_P(str, RUBY_T_STRING))
				continue;

			out.push_back(RSTRING_PTR(str));
		}
	}
}

DEF_TYPE(Font);

RB_METHOD(fontDoesExist){
	RB_UNUSED_PARAM;

	const char *name = 0;
	VALUE nameObj;

	rb_get_args(argc, argv, "o", &nameObj RB_ARG_END);

	if (RB_TYPE_P(nameObj, RUBY_T_STRING))
		name = rb_string_value_cstr(&nameObj);

	return rb_bool_new(Font::doesExist(name));
}

RB_METHOD(FontSetName);

RB_METHOD(fontInitialize){
	VALUE namesObj = Qnil;
	int size = 0;

	rb_get_args(argc, argv, "|oi", &namesObj, &size RB_ARG_END);

	Font *f;

	if (NIL_P(namesObj)){
		namesObj = rb_iv_get(rb_obj_class(self), "default_name");
		f = new Font(0, size);
	}
	else{
		std::vector<std::string> names;
		collectStrings(namesObj, names);

		f = new Font(&names, size);
	}

	/* This is semantically wrong; the new Font object should take
	 * a dup'ed object here in case of an array. Ditto for the setters.
	 * However the same bug/behavior exists in all RM versions. */
	rb_iv_set(self, "name", namesObj);

	setPrivateData(self, f);

	/* Wrap property objects */
	f->initDynAttribs();

	wrapProperty(self, &f->getColor(), "color", ColorType);

	return self;
}

RB_METHOD(fontInitializeCopy){
	VALUE origObj;
	rb_get_args(argc, argv, "o", &origObj RB_ARG_END);

	if (!OBJ_INIT_COPY(self, origObj))
		return self;

	Font *orig = getPrivateData<Font>(origObj);
	Font *f = new Font(*orig);
	setPrivateData(self, f);

	/* Wrap property objects */
	f->initDynAttribs();

	wrapProperty(self, &f->getColor(), "color", ColorType);

	return self;
}

RB_METHOD(FontGetName){
	RB_UNUSED_PARAM;

	return rb_iv_get(self, "name");
}

RB_METHOD(FontSetName){
	Font *f = getPrivateData<Font>(self);

	rb_check_argc(argc, 1);

	std::vector<std::string> namesObj;
	collectStrings(argv[0], namesObj);

	f->setName(namesObj);
	rb_iv_set(self, "name", argv[0]);

	return argv[0];
}

template<class C>
static void checkDisposed(VALUE) {}

DEF_PROP_OBJ_VAL(Font, Color, Color,    "color")
DEF_PROP_OBJ_VAL(Font, Color, OutColor, "out_color")

DEF_PROP_I(Font, Size)

DEF_PROP_B(Font, Bold)
DEF_PROP_B(Font, Italic)
DEF_PROP_B(Font, Shadow)
DEF_PROP_B(Font, Outline)

#define DEF_KLASS_PROP(Klass, type, PropName, param_t_s, value_fun) \
	RB_METHOD(Klass##Get##PropName) \
	{ \
		RB_UNUSED_PARAM; \
		return value_fun(Klass::get##PropName()); \
	} \
	RB_METHOD(Klass##Set##PropName) \
	{ \
		RB_UNUSED_PARAM; \
		type value; \
		rb_get_args(argc, argv, param_t_s, &value RB_ARG_END); \
		Klass::set##PropName(value); \
		return value_fun(value); \
	}

DEF_KLASS_PROP(Font, int,  DefaultSize,    "i", rb_fix_new)
DEF_KLASS_PROP(Font, bool, DefaultBold,    "b", rb_bool_new)
DEF_KLASS_PROP(Font, bool, DefaultItalic,  "b", rb_bool_new)
DEF_KLASS_PROP(Font, bool, DefaultShadow,  "b", rb_bool_new)
DEF_KLASS_PROP(Font, bool, DefaultOutline, "b", rb_bool_new)

RB_METHOD(FontGetDefaultOutColor){
	RB_UNUSED_PARAM;
	return rb_iv_get(self, "default_out_color");
}

RB_METHOD(FontSetDefaultOutColor){
	RB_UNUSED_PARAM;

	VALUE colorObj;
	rb_get_args(argc, argv, "o", &colorObj RB_ARG_END);

	Color *c = getPrivateDataCheck<Color>(colorObj, ColorType);

	Font::setDefaultOutColor(*c);

	return colorObj;
}

RB_METHOD(FontGetDefaultName){
	RB_UNUSED_PARAM;

	return rb_iv_get(self, "default_name");
}

RB_METHOD(FontSetDefaultName){
	RB_UNUSED_PARAM;

	rb_check_argc(argc, 1);

	std::vector<std::string> namesObj;
	collectStrings(argv[0], namesObj);

	Font::setDefaultName(namesObj, shState->fontState());
	rb_iv_set(self, "default_name", argv[0]);

	return argv[0];
}

RB_METHOD(FontGetDefaultColor){
	RB_UNUSED_PARAM;
	return rb_iv_get(self, "default_color");
}


RB_METHOD(FontSetDefaultColor){
	RB_UNUSED_PARAM;

	VALUE colorObj;
	rb_get_args(argc, argv, "o", &colorObj RB_ARG_END);

	Color *c = getPrivateDataCheck<Color>(colorObj, ColorType);

	Font::setDefaultColor(*c);

	return colorObj;
}

#define INIT_KLASS_PROP_BIND(Klass, PropName, prop_name_s) \
{ \
	rb_define_class_method(klass, prop_name_s, Klass##Get##PropName); \
	rb_define_class_method(klass, prop_name_s "=", Klass##Set##PropName); \
}

void fontBindingInit(){
	VALUE klass = rb_define_class("Font", rb_cObject);
	rb_define_alloc_func(klass, classAllocate<&FontType>);

	Font::initDefaultDynAttribs();
	wrapProperty(klass, &Font::getDefaultColor(), "default_color", ColorType);

	/* Initialize default names */
	const std::vector<std::string> &defNames = Font::getInitialDefaultNames();
	VALUE defNamesObj;

	if (defNames.size() == 1){
		defNamesObj = rb_str_new_cstr(defNames[0].c_str());
	}
	else{
		defNamesObj = rb_ary_new2(defNames.size());

		for (size_t i = 0; i < defNames.size(); ++i)
			rb_ary_push(defNamesObj, rb_str_new_cstr(defNames[i].c_str()));
	}

	rb_iv_set(klass, "default_name", defNamesObj);

	wrapProperty(klass, &Font::getDefaultOutColor(), "default_out_color", ColorType);

	INIT_KLASS_PROP_BIND(Font, DefaultName, "default_name");
	INIT_KLASS_PROP_BIND(Font, DefaultSize, "default_size");
	INIT_KLASS_PROP_BIND(Font, DefaultBold, "default_bold");
	INIT_KLASS_PROP_BIND(Font, DefaultItalic, "default_italic");
	INIT_KLASS_PROP_BIND(Font, DefaultColor, "default_color");
	INIT_KLASS_PROP_BIND(Font, DefaultShadow, "default_shadow");
	INIT_KLASS_PROP_BIND(Font, DefaultOutline, "default_outline");
	INIT_KLASS_PROP_BIND(Font, DefaultOutColor, "default_out_color");

	rb_define_class_method(klass, "exist?", fontDoesExist);

	_rb_define_method(klass, "initialize",      fontInitialize);
	_rb_define_method(klass, "initialize_copy", fontInitializeCopy);

	INIT_PROP_BIND(Font, Name, "name");
	INIT_PROP_BIND(Font, Size, "size");
	INIT_PROP_BIND(Font, Bold, "bold");
	INIT_PROP_BIND(Font, Italic, "italic");
	INIT_PROP_BIND(Font, Color, "color");

	INIT_PROP_BIND(Font, Shadow, "shadow");

	INIT_PROP_BIND(Font, Outline, "outline");
	INIT_PROP_BIND(Font, OutColor, "out_color");
}
