/*
 * Copyright 2018 Allan Wang
 *
 * 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 ca.allanwang.kau.kpref.activity.items

import android.widget.TextView
import ca.allanwang.kau.kpref.activity.GlobalOptions
import ca.allanwang.kau.kpref.activity.KClick
import ca.allanwang.kau.kpref.activity.KPrefItemActions
import ca.allanwang.kau.kpref.activity.R
import ca.allanwang.kau.utils.toast

/**
 * Created by Allan Wang on 2017-06-14.
 *
 * Text preference
 * Holds a textview to display data on the right
 * This is still a generic preference
 *
 */
open class KPrefText<T>(open val builder: KPrefTextContract<T>) : KPrefItemBase<T>(builder) {

    /**
     * Automatically reload on set
     */
    override var pref: T
        get() = base.getter()
        set(value) {
            base.setter(this, value)
            builder.reloadSelf()
        }

    override fun KClick<T>.defaultOnClick() {
        context.toast("No click function set")
    }

    override fun bindView(holder: ViewHolder, payloads: List<Any>) {
        super.bindView(holder, payloads)
        val textView = holder.bindInnerView<TextView>(R.layout.kau_pref_text)
        withTextColor(textView::setTextColor)
        textView.text = builder.textGetter(pref)
    }

    /**
     * Extension of the base contract with an optional text getter
     */
    interface KPrefTextContract<T> : BaseContract<T> {
        var textGetter: (T) -> String?
    }

    /**
     * Default implementation of [KPrefTextContract]
     */
    class KPrefTextBuilder<T>(
        globalOptions: GlobalOptions,
        titleId: Int,
        getter: () -> T,
        setter: KPrefItemActions.(value: T) -> Unit
    ) : KPrefTextContract<T>,
        BaseContract<T> by BaseBuilder<T>(globalOptions, titleId, getter, setter) {
        override var textGetter: (T) -> String? = { it?.toString() }
    }

    override val type: Int
        get() = R.id.kau_item_pref_text
}