#include "config.h"
#include "Entity.h"
#include "DepInfo.h"
#include "Action.h"
#include "Loggers.h"
#include "FileSig.h"
#include "FileEntity.h"

Entity::Entity()
{
}

Entity::~Entity()
{
}

void Entity::addAction(shared_ptr<Action> action)
{
 actions.push_back(action);
}

void Entity::addPrerequisite(EntityPtr p)
{
 prerequisiteList.push_back(p);
}

// 并不是发现下级节点比本节点更新时才重新生成本节点
// 而是当发现下级节点在更新后,比原来要新时,就重新生成本节点。
// 这样,就算copy来一个较新的.cpp覆盖原来的老.cpp,虽然这个新.cpp可能还没.o新,也会重新生成本节点
// 以上作废,说得不对
// 
void Entity::updatePrerequisites(DepInfo& info)
{
 for (auto p : prerequisiteList) {
 
 bool success = p->update();
 
 if (success) {
 }
 else {
 info.failed.push_back(p);
 }
 
 }
 
}

bool Entity::executeActions(const DepInfo& info)
{
 // 如果就没关联什么动作,下级的更新失败,就是自己的失败
 if (actions.empty()) {
 if (!info.failed.empty())
 return false;
 }

 // 如果关联有动作,就让动作决定是否失败
 for (auto a : actions) {
 bool success = a->execute(info);
 if (!success) {
 MINILOG(update_logger, "Entity::executeActions FAILED: " << name());
 return false;
 }
 }
 MINILOG(update_logger, "Entity::executeActions OK: " << name());
 return true;
}

void Entity::show(ostream& os, int level, string indent)
{
 for (int i = 0; i < level; i++)
 os << indent;
 os << name() << endl;

 for (auto p : prerequisiteList)
 p->show(os, level + 1);
}