#include "ResourceManager.h"

#include <iostream>
#include <stdexcept>

#include "texture.h"
#include "font.h"

ResourceManager::~ResourceManager()
{
	for (auto& [path, texture] : textures) {
		if (!texture) continue;
		texture->Delete();
		delete texture;
	}
	for (Texture* texture : createdTextures) {
		texture->Delete();
		delete texture;
	}
	for (auto& [path, font] : fonts)
		delete font;
}

Texture* ResourceManager::CreateTexture(int width, int height)
{
	createdTextures.push_back(new Texture(width, height));
	return createdTextures.back();
}

Texture* ResourceManager::CopyTexture(const Texture& source)
{
	createdTextures.push_back(new Texture(source));
	return createdTextures.back();
}

// Failed loads are cached as nullptr too, so a missing file only gets reported once
Texture* ResourceManager::GetTexture(const std::string& path)
{
	auto existing = textures.find(path);
	if (existing != textures.end())
		return existing->second;

	Texture* texture = nullptr;
	try {
		texture = new Texture(path.c_str());
	}
	catch (const std::exception& error) {
		std::cout << "RESOURCE MANAGER: " << error.what() << "\n";
	}
	textures[path] = texture;
	return texture;
}

Font* ResourceManager::GetFont(const std::string& path)
{
	auto existing = fonts.find(path);
	if (existing != fonts.end())
		return existing->second;

	Font* font = nullptr;
	try {
		font = new Font(path.c_str());
	}
	catch (const std::exception& error) {
		std::cout << "RESOURCE MANAGER: " << error.what() << ": " << path << "\n";
	}
	fonts[path] = font;
	return font;
}