package org.schabi.newpipe.database.feed.model

import androidx.room.ColumnInfo
import androidx.room.Entity
import androidx.room.ForeignKey
import androidx.room.ForeignKey.CASCADE
import androidx.room.Index
import org.schabi.newpipe.database.feed.model.FeedGroupSubscriptionEntity.Companion.FEED_GROUP_SUBSCRIPTION_TABLE
import org.schabi.newpipe.database.feed.model.FeedGroupSubscriptionEntity.Companion.GROUP_ID
import org.schabi.newpipe.database.feed.model.FeedGroupSubscriptionEntity.Companion.SUBSCRIPTION_ID
import org.schabi.newpipe.database.subscription.SubscriptionEntity

@Entity(
        tableName = FEED_GROUP_SUBSCRIPTION_TABLE,
        primaryKeys = [GROUP_ID, SUBSCRIPTION_ID],
        indices = [Index(SUBSCRIPTION_ID)],
        foreignKeys = [
            ForeignKey(
                    entity = FeedGroupEntity::class,
                    parentColumns = [FeedGroupEntity.ID],
                    childColumns = [GROUP_ID],
                    onDelete = CASCADE, onUpdate = CASCADE, deferred = true),

            ForeignKey(
                    entity = SubscriptionEntity::class,
                    parentColumns = [SubscriptionEntity.SUBSCRIPTION_UID],
                    childColumns = [SUBSCRIPTION_ID],
                    onDelete = CASCADE, onUpdate = CASCADE, deferred = true)
        ]
)
data class FeedGroupSubscriptionEntity(
    @ColumnInfo(name = GROUP_ID)
    var feedGroupId: Long,

    @ColumnInfo(name = SUBSCRIPTION_ID)
    var subscriptionId: Long
) {

    companion object {
        const val FEED_GROUP_SUBSCRIPTION_TABLE = "feed_group_subscription_join"

        const val GROUP_ID = "group_id"
        const val SUBSCRIPTION_ID = "subscription_id"
    }
}
