package controllers

import play.api._
import play.api.mvc._
import play.api.data._
import com.mongodb.casbah.commons.MongoDBObject
import com.mongodb.casbah.MongoConnection
import org.bson.types.ObjectId
import com.mongodb.casbah.Imports._

object Moderation extends Controller {

  val DataBaseName = "sosmessage"
  val MessagesCollectionName = "messages"
  val CategoriesCollectionName = "categories"

  val mongo = MongoConnection()

  val messagesCollection = mongo(DataBaseName)(MessagesCollectionName)
  val categoriesCollection = mongo(DataBaseName)(CategoriesCollectionName)

  def index(state: String = "waiting") = Action { implicit request =>
    val messageOrder = MongoDBObject("createdAt" -> -1)
    val q = MongoDBObject("state" -> state)
    val messages = messagesCollection.find(q).sort(messageOrder).foldLeft(List[DBObject]())((l, a) =>
      a :: l
    ).reverse
    Ok(views.html.moderation.index(state, messages))
  }

  def approve(messageId: String, selectedTab: String) = Action { implicit request =>
    val oid = new ObjectId(messageId)
    var o = messagesCollection.findOne(MongoDBObject("_id" -> oid)).get
    o += ("state" -> "approved")
    messagesCollection.save(o)
    Redirect(routes.Moderation.index(selectedTab)).flashing("actionDone" -> "messageApproved")
  }

  def reject(messageId: String, selectedTab: String) = Action { implicit request =>
    val oid = new ObjectId(messageId)
    var o = messagesCollection.findOne(MongoDBObject("_id" -> oid)).get
    o += ("state" -> "rejected")
    messagesCollection.save(o)
    Redirect(routes.Moderation.index(selectedTab)).flashing("actionDone" -> "messageRejected")
  }

  def delete(messageId: String, selectedTab: String) = Action { implicit request =>
    val oid = new ObjectId(messageId)
    val o = MongoDBObject("_id" -> oid)
    messagesCollection.remove(o)
    Redirect(routes.Moderation.index(selectedTab)).flashing("actionDone" -> "messageDeleted")
  }

  def deleteAll(state: String) = Action { implicit request =>
    val o = MongoDBObject("state" -> state)
    messagesCollection.remove(o)
    Redirect(routes.Moderation.index("waiting")).flashing("actionDone" -> (state + "MessagesDeleted"))
  }

  def approveAll(state: String) = Action { implicit request =>
    messagesCollection.update(MongoDBObject("state" -> state), $set ("state" -> "approved"), false, true)
    Redirect(routes.Moderation.index("waiting")).flashing("actionDone" -> (state + "MessagesApproved"))
  }
  def rejectAll(state: String) = Action { implicit request =>
    messagesCollection.update(MongoDBObject("state" -> state), $set ("state" -> "rejected"), false, true)
    Redirect(routes.Moderation.index("waiting")).flashing("actionDone" -> (state + "MessagesRejected"))
  }

}