// bullet_registry.cpp - Implementació del registre de bales
// © 2026 JailDesigner

#include "game/entities/bullet_registry.hpp"

#include <cstdlib>
#include <iostream>

#include "core/entities/entity_loader.hpp"

std::unordered_map<std::string, BulletConfig> BulletRegistry::configs;
bool BulletRegistry::loaded = false;

namespace {
    // Tria comú: carrega el YAML d'un name, parseja a BulletConfig i el guarda
    // al map. Retorna punter al config inserit, o nullptr si falla.
    auto loadInto(std::unordered_map<std::string, BulletConfig>& configs, const std::string& name) -> const BulletConfig* {
        auto yaml = Entities::EntityLoader::load(name);
        if (!yaml) {
            std::cerr << "[BulletRegistry] Error: no s'ha pogut carregar " << name << ".yaml\n";
            return nullptr;
        }
        auto cfg = BulletConfig::fromYaml(*yaml);
        if (!cfg) {
            std::cerr << "[BulletRegistry] Error: format invàlid a " << name << ".yaml\n";
            return nullptr;
        }
        auto [it, _] = configs.insert_or_assign(name, *cfg);
        return &it->second;
    }
}  // namespace

auto BulletRegistry::load() -> bool {
    if (loadInto(configs, "bullet") == nullptr) {
        return false;
    }
    loaded = true;
    std::cout << "[BulletRegistry] Configuració de bala 'bullet' carregada.\n";
    return true;
}

auto BulletRegistry::get() -> const BulletConfig& {
    if (!loaded) {
        std::cerr << "[BulletRegistry] FATAL: get() abans de load()\n";
        std::exit(EXIT_FAILURE);
    }
    return configs.at("bullet");
}

auto BulletRegistry::get(const std::string& name) -> const BulletConfig* {
    auto it = configs.find(name);
    if (it != configs.end()) {
        return &it->second;
    }
    return loadInto(configs, name);
}