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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/actor/actor_task.h"
#include <ostream>
#include "base/no_destructor.h"
#include "base/state_transitions.h"
#include "chrome/browser/actor/execution_engine.h"
#include "components/tabs/public/tab_interface.h"
namespace actor {
ActorTask::ActorTask() = default;
ActorTask::ActorTask(std::unique_ptr<ExecutionEngine> execution_engine)
: execution_engine_(std::move(execution_engine)) {
execution_engine_->SetOwner(this);
}
ActorTask::~ActorTask() = default;
void ActorTask::SetId(base::PassKey<ActorKeyedService>, TaskId id) {
id_ = id;
}
ExecutionEngine* ActorTask::GetExecutionEngine() const {
return execution_engine_.get();
}
ActorTask::State ActorTask::GetState() const {
return state_;
}
void ActorTask::SetState(State state) {
using enum State;
#if DCHECK_IS_ON()
static const base::NoDestructor<base::StateTransitions<State>>
allowed_transitions(base::StateTransitions<State>({
{kCreated, {kActing, kReflecting, kPausedByClient, kFinished}},
{kActing, {kReflecting, kPausedByClient, kFinished}},
{kReflecting, {kActing, kPausedByClient, kFinished}},
{kPausedByClient, {kActing, kReflecting, kFinished}},
{kFinished, {}},
}));
if (state != state_) {
DCHECK_STATE_TRANSITION(allowed_transitions,
/*old_state=*/state_,
/*new_state=*/state);
}
#endif // DCHECK_IS_ON()
state_ = state;
}
void ActorTask::Stop() {
if (execution_engine_) {
execution_engine_->CancelOngoingActions(
mojom::ActionResultCode::kTaskWentAway);
}
SetState(State::kFinished);
}
void ActorTask::Pause() {
if (GetState() == State::kFinished) {
return;
}
if (execution_engine_) {
execution_engine_->CancelOngoingActions(
mojom::ActionResultCode::kTaskPaused);
}
SetState(State::kPausedByClient);
}
void ActorTask::Resume() {
if (GetState() != State::kFinished) {
SetState(State::kReflecting);
}
}
bool ActorTask::IsPaused() const {
return GetState() == State::kPausedByClient;
}
std::ostream& operator<<(std::ostream& os, const ActorTask::State& state) {
using enum ActorTask::State;
switch (state) {
case kCreated:
return os << "Created";
case kActing:
return os << "Acting";
case kReflecting:
return os << "Reflecting";
case kPausedByClient:
return os << "PausedByClient";
case kFinished:
return os << "Finished";
}
}
} // namespace actor
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