fr.vsct.tock.bot.engine.dialog.Dialog.kt Maven / Gradle / Ivy

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/*
 * Copyright (C) 2017 VSCT
 *
 * 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 fr.vsct.tock.bot.engine.dialog

import fr.vsct.tock.bot.engine.action.Action
import fr.vsct.tock.bot.engine.user.PlayerId
import fr.vsct.tock.bot.engine.user.UserTimelineDAO
import fr.vsct.tock.shared.injector
import fr.vsct.tock.shared.provide
import org.litote.kmongo.Id
import org.litote.kmongo.newId

/**
 * A dialog is a conversation between users and bots.
 * Conversation history is split into a list of [stories].
 * The dialog has a (current) [state].
 */
data class Dialog(val playerIds: Set,
                  var id: Id = newId(),
                  val state: DialogState = DialogState(),
                  val stories: MutableList = mutableListOf()) {

    /**
     * The current story.
     */
    fun currentStory(): Story? = stories.lastOrNull()

    /**
     * All past actions.
     */
    fun allActions(): List = stories.flatMap { it.actions }

    /**
     * The [Snapshots] of the dialog.
     */
    val snapshots: List by lazy { injector.provide().getSnapshots(id) }
}