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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.
#ifndef CHROME_BROWSER_COMPONENT_UPDATER_WASM_TTS_ENGINE_COMPONENT_INSTALLER_H_
#define CHROME_BROWSER_COMPONENT_UPDATER_WASM_TTS_ENGINE_COMPONENT_INSTALLER_H_
#include <string>
#include <vector>
#include "base/values.h"
#include "components/component_updater/component_installer.h"
#include "components/prefs/pref_service.h"
namespace base {
class FilePath;
} // namespace base
namespace component_updater {
class ComponentUpdateService;
class WasmTtsEngineComponentInstallerPolicy : public ComponentInstallerPolicy {
public:
explicit WasmTtsEngineComponentInstallerPolicy(PrefService* prefs);
WasmTtsEngineComponentInstallerPolicy(
const WasmTtsEngineComponentInstallerPolicy&) = delete;
WasmTtsEngineComponentInstallerPolicy& operator=(
const WasmTtsEngineComponentInstallerPolicy&) = delete;
static void RegisterPrefs(PrefRegistrySimple* registry);
static void GetWasmTTSEngineDirectory(
base::OnceCallback<void(const base::FilePath&)> callback);
private:
// The following methods override ComponentInstallerPolicy.
bool SupportsGroupPolicyEnabledComponentUpdates() const override;
bool RequiresNetworkEncryption() const override;
update_client::CrxInstaller::Result OnCustomInstall(
const base::Value::Dict& manifest,
const base::FilePath& install_dir) override;
void OnCustomUninstall() override;
bool VerifyInstallation(const base::Value::Dict& manifest,
const base::FilePath& install_dir) const override;
void ComponentReady(const base::Version& version,
const base::FilePath& install_dir,
base::Value::Dict manifest) override;
void MaybeReinstallTtsEngine(const base::FilePath& install_dir);
base::FilePath GetRelativeInstallDir() const override;
void GetHash(std::vector<uint8_t>* hash) const override;
base::Time GetTimeSinceLastOpened(char pref);
std::string GetName() const override;
update_client::InstallerAttributes GetInstallerAttributes() const override;
// Thresholds used to keep track of how long it has been since reading mode
// was last opened. The TTS engine should be reinstalled to remove never
// used voices after kThresholdRecent time has passed without reading mode
// being opened and reinstalled to removed unused voices after
// kThresholdLonger time has passed without reading mode being opened.
const base::TimeDelta kThresholdRecent = base::Days(14);
const base::TimeDelta kThresholdLonger = base::Days(90);
raw_ptr<PrefService, DanglingUntriaged> pref_service_;
};
// Call once during startup to make the component update service aware of
// the WASM TTS Engine component.
void RegisterWasmTtsEngineComponent(ComponentUpdateService* cus,
PrefService* pref);
} // namespace component_updater
#endif // CHROME_BROWSER_COMPONENT_UPDATER_WASM_TTS_ENGINE_COMPONENT_INSTALLER_H_
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