/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.
 * 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 io.appium.espressoserver.lib.helpers

object StringHelpers {

    @JvmStatic
    fun abbreviate(str: String?, len: Int): String? {
        return if (str != null && str.length > len) str.substring(0, len) + "\u2026" else str
    }

    fun isBlank(str: String?): Boolean {
        return str == null || str.trim { it <= ' ' } == ""
    }

    private fun charSequenceToString(input: CharSequence?, replaceNull: Boolean): String? {
        return input?.toString() ?: if (replaceNull) "" else null
    }

    fun charSequenceToNullableString(input: CharSequence?): String? {
        return charSequenceToString(input, false)
    }

    fun charSequenceToNonNullString(input: CharSequence?): String {
        return charSequenceToString(input, true)!!.toString()
    }

}