#include "stdafx.h"
#include "shared.h"

using namespace pfc;

DECLARE_COMPONENT_VERSION("DSP chain [de]serializer", "1.0",
stringcvt::string_utf8_from_os(L"© 2011 Yegor Petrov (entrase@ya.ru)"));
VALIDATE_COMPONENT_FILENAME("foo_chain_impexp.dll");

static const GUID g_group =
	{ 0x211522be, 0xa20, 0x4f98,
	{ 0xba, 0x9c, 0x5c, 0x18, 0x42, 0x20, 0x25, 0xee } };

static mainmenu_group_popup_factory g_mainmenu_group(
	g_group, mainmenu_groups::playback_etc,
	mainmenu_commands::sort_priority_dontcare, "DSP chain serializer");

class dsp_serializer_cmds : public mainmenu_commands {

public:
	void execute(t_uint32 p_index, service_ptr_t<service_base> p_callback)
	{
		string8 filename = "";
		if (!uGetOpenFileName(core_api::get_main_window(),
				"DSP chain presets (*.fbcp)|*.fbcp", 0,
				"fbcp",	"", "", filename, p_index != 0))
		{
			return;
		}
		
		using namespace foobar2000_io;
		abort_callback_dummy cb;
		service_ptr_t<file> fbcp;
		
		if (p_index == 0) // Load
		{
			if (!filesystem::g_exists(filename, cb))
			{
				popup_message::g_complain("File does not exist.");
				return;
			}
			filesystem::g_open_read(fbcp, filename, cb);
			if (fbcp->get_size(cb) < 8) // Can't be (header + size prefix)
			{
				popup_message::g_complain("Not a Foobar2000 DSP chain preset.");
				return;
			}
			t_int32 hdr = 0;
			fbcp->read_bendian_t(hdr, cb);
			if (hdr != 'FBCP') // Someone is cheating
			{
				popup_message::g_complain("Not a Foobar2000 DSP chain preset.");
				return;
			}
			dsp_chain_config_impl chain;
			chain.contents_from_stream(fbcp.get_ptr(), cb);
			static_api_ptr_t<dsp_config_manager>()->set_core_settings(chain);
		}
		else // Save
		{
			filesystem::g_open_write_new(fbcp, filename, cb);
			fbcp->write_bendian_t('FBCP', cb);
			dsp_chain_config_impl chain;
			static_api_ptr_t<dsp_config_manager>()->get_core_settings(chain);
			chain.contents_to_stream(fbcp.get_ptr(), cb);
		}
	}

	t_uint32 get_command_count() { return 2; }
	
	GUID get_parent() {	return g_group;	}

	GUID get_command(t_uint32 p_index) {
		static const GUID guid_load =
			{ 0x7bfce41, 0x4baa, 0x406a,
			{ 0x9d, 0x81, 0x7d, 0x9e, 0xab, 0x7, 0x5c, 0x77 } };
		static const GUID guid_save =
			{ 0x8778d00, 0xc497, 0x4f67,
			{ 0xb5, 0xac, 0xb, 0x4c, 0xcc, 0x56, 0xd8, 0x16 } };
		return p_index == 0 ? guid_load : guid_save;
	}

	void get_name(t_uint32 p_index, pfc::string_base & p_out) {
		p_out = p_index == 0 ? "Load" : "Save";
	}

	bool get_description(t_uint32 p_index, string_base & p_out) {
		p_out = p_index == 0 ?
			"Loads a DSP chain configuration file." :
			"Writes current DSP chain configuration to a file.";
		return true;
	}
	
	bool get_display(t_uint32 p_index, string_base & p_txt, t_uint32 & p_flags)
	{
		p_flags |= mainmenu_commands::flag_defaulthidden;
		p_txt = p_index == 0 ? "Load..." : "Save as...";
		return true;
	}
};

static mainmenu_commands_factory_t<dsp_serializer_cmds>	_dsp_serializer_cmds_;