Introduce new QS tiles core interfaces

package com.android.systemui.qs.tiles.base.interactor

import com.android.systemui.qs.tiles.viewmodel.QSTileState

import kotlinx.coroutines.CoroutineDispatcher

import kotlinx.coroutines.flow.Flow

/**

 * Provides data and availability for the tile. In most cases it would delegate data retrieval to

 * repository, manager, controller or a combination of those. Avoid doing long running operations in

 * these methods because there is no background thread guarantee. Use [Flow.flowOn] (typically

 * with @Background [CoroutineDispatcher]) instead to move the calculations to another thread.

 */

interface QSTileDataInteractor<DATA_TYPE> {

    /**

     * Returns the data to be mapped to [QSTileState]. Make sure to start the flow [Flow.onStart]

     * with the current state to update the tile as soon as possible.

     */

    fun tileData(qsTileDataRequest: QSTileDataRequest): Flow<DATA_TYPE>

    /**

     * Returns tile availability - whether this device currently supports this tile. Make sure to

     * start the flow [Flow.onStart] with the current state to update the tile as soon as possible.

     */

    fun availability(): Flow<Boolean>

}

package com.android.systemui.qs.tiles.base.interactor

data class QSTileDataRequest(

    val userId: Int,

    val trigger: StateUpdateTrigger,

)

package com.android.systemui.qs.tiles.base.interactor

import android.annotation.WorkerThread

import com.android.systemui.qs.tiles.viewmodel.QSTileUserAction

interface QSTileUserActionInteractor<DATA_TYPE> {

    /**

     * Processes user input based on [userAction] and [currentData]. It's safe to run long running

     * computations inside this function in this.

     */

    @WorkerThread suspend fun handleInput(userAction: QSTileUserAction, currentData: DATA_TYPE)

}

package com.android.systemui.qs.tiles.base.interactor

import com.android.systemui.qs.tiles.viewmodel.QSTileState

import com.android.systemui.qs.tiles.viewmodel.QSTileUserAction

sealed interface StateUpdateTrigger {

    class UserAction<T>(val action: QSTileUserAction, val tileState: QSTileState, val tileData: T) :

        StateUpdateTrigger

    data object ForceUpdate : StateUpdateTrigger

    data object InitialRequest : StateUpdateTrigger

}

package com.android.systemui.qs.tiles.viewmodel

import android.graphics.drawable.Icon

import com.android.systemui.qs.pipeline.shared.TileSpec

data class QSTileConfig(

    val tileSpec: TileSpec,

    val tileIcon: Icon,

    val tileLabel: CharSequence,

// TODO(b/299908705): Fill necessary params

/*

val instanceId: InstanceId,

 */

)