// Copyright (c) 2022 NetEase, Inc. All rights reserved.
// Use of this source code is governed by a MIT license that can be
// found in the LICENSE file.

#include "MethodCallHandlerImpl.h"

#include <flutter/method_channel.h>
#include <flutter/plugin_registrar_windows.h>
#include <flutter/standard_method_codec.h>

#include <memory>

#include "NimCore.h"

MethodCallHandlerImpl::MethodCallHandlerImpl() {}

void MethodCallHandlerImpl::onMethodCall(
        const flutter::MethodCall <flutter::EncodableValue> &method_call,
        std::shared_ptr <flutter::MethodResult<flutter::EncodableValue>> result) {
    const auto *arguments =
            std::get_if<flutter::EncodableMap>(method_call.arguments());
    if (arguments) {
        NimCore::getInstance()->onMethodCall(method_call.method_name(), arguments,
                                             result);
    } else {
        if (result) {
            result->NotImplemented();
        }
    }
}

flutter::MethodChannel <flutter::EncodableValue> *
MethodCallHandlerImpl::startListening(flutter::PluginRegistrar *registrar) {
    m_methodChannel =
            std::make_unique < flutter::MethodChannel < flutter::EncodableValue >> (
                    registrar->messenger(), "flutter_openim_sdk",
                            &flutter::StandardMethodCodec::GetInstance());

    NimCore::getInstance()->setMethodChannel(m_methodChannel.get());
    return m_methodChannel.get();
}

void MethodCallHandlerImpl::stopListening() {
    NimCore::getInstance()->setMethodChannel(nullptr);
}