/*
 * Copyright (C) 2022 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.systemui.statusbar.policy

import android.graphics.drawable.Drawable
import com.android.systemui.util.mockito.mock

/** A fake [UserInfoController] to be used in tests. */
class FakeUserInfoController(
    private val fakeInfo: FakeInfo = FakeInfo(),
) : UserInfoController {
    private val listeners = LinkedHashSet<UserInfoController.OnUserInfoChangedListener>()

    /** Update [fakeInfo], then notify the listeners. */
    fun updateInfo(f: FakeInfo.() -> Unit) {
        fakeInfo.f()
        notifyListeners()
    }

    private fun notifyListeners() {
        listeners.forEach { listener ->
            listener.onUserInfoChanged(fakeInfo.name, fakeInfo.picture, fakeInfo.userAccount)
        }
    }

    override fun addCallback(listener: UserInfoController.OnUserInfoChangedListener) {
        listeners.add(listener)

        // The actual implementation notifies the listener when adding it.
        listener.onUserInfoChanged(fakeInfo.name, fakeInfo.picture, fakeInfo.userAccount)
    }

    override fun removeCallback(listener: UserInfoController.OnUserInfoChangedListener) {
        listeners.remove(listener)
    }

    override fun reloadUserInfo() {}

    class FakeInfo(
        var name: String = "",
        var picture: Drawable = mock(),
        var userAccount: String = "",
    )
}