/*
 * Copyright (C) 2023 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 android.tools.traces

/**
 * The utility class to validate a set of conditions
 *
 * This class is used to easily integrate multiple conditions into a single verification, for
 * example, during [WaitCondition], while keeping the individual conditions separate for better
 * reuse
 *
 * @param conditions conditions to be checked
 */
class ConditionList<T>(val conditions: List<Condition<T>>) : Condition<T>("", { false }) {
    constructor(vararg conditions: Condition<T>) : this(listOf(*conditions))

    override val message: String
        get() {
            return "(\n${
                conditions
                    .joinToString(" and \n") { it.toString() }
                    .prependIndent("    ")
            }\n)"
        }

    override val condition: (T) -> Boolean
        get() = { value -> conditions.all { condition -> condition.isSatisfied(value) } }

    override fun getMessage(value: T): String {
        return "(\n${
            conditions
                .joinToString(" and \n") { it.getMessage(value) }
                .prependIndent("    ")
        }\n)"
    }
}