// Copyright (c) 2005, Rodrigo Braz Monteiro
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
//   * Redistributions of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//   * Redistributions in binary form must reproduce the above copyright notice,
//     this list of conditions and the following disclaimer in the documentation
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//   * Neither the name of the Aegisub Group nor the names of its contributors
//     may be used to endorse or promote products derived from this software
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// Aegisub Project http://www.aegisub.org/

/// @file ass_style_storage.cpp
/// @brief Manage stores of styles
/// @ingroup style_editor
///

#include "config.h"

#include "ass_style_storage.h"

#include <functional>

#include "ass_style.h"
#include "standard_paths.h"
#include "text_file_reader.h"
#include "text_file_writer.h"
#include "utils.h"

AssStyleStorage::~AssStyleStorage() {
	delete_clear(style);
}

void AssStyleStorage::Save() const {
	if (storage_name.empty()) return;

	wxString dirname = StandardPaths::DecodePath("?user/catalog/");
	if (!wxDirExists(dirname) && !wxMkdir(dirname))
		throw "Failed creating directory for style catalogs";

	TextFileWriter file(StandardPaths::DecodePath("?user/catalog/" + storage_name + ".sty"), "UTF-8");
	for (const AssStyle *cur : style)
		file.WriteLineToFile(cur->GetEntryData());
}

void AssStyleStorage::Load(wxString const& name) {
	storage_name = name;
	Clear();

	try {
		TextFileReader file(StandardPaths::DecodePath("?user/catalog/" + name + ".sty"), "UTF-8");

		while (file.HasMoreLines()) {
			wxString data = file.ReadLineFromFile();
			if (data.StartsWith("Style:")) {
				try {
					style.push_back(new AssStyle(data));
				} catch(...) {
					/* just ignore invalid lines for now */
				}
			}
		}
	}
	catch (agi::FileNotAccessibleError const&) {
		// Just treat a missing file as an empty file
	}
}

void AssStyleStorage::Clear() {
	delete_clear(style);
}

void AssStyleStorage::Delete(int idx) {
	delete style[idx];
	style.erase(style.begin() + idx);
}

wxArrayString AssStyleStorage::GetNames() {
	wxArrayString names;
	for (const AssStyle *cur : style)
		names.Add(cur->name);
	return names;
}

AssStyle *AssStyleStorage::GetStyle(wxString const& name) {
	for (AssStyle *cur : style) {
		if (cur->name.CmpNoCase(name) == 0)
			return cur;
	}
	return 0;
}