/*

 * Copyright 2012 Tomas Zeman <tzeman@volny.cz>

 *

 * 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 fis.pm.ui

import fis.notif._

import fis.pm.model._

import net.liftweb.common._

import net.liftweb.http._

import net.liftweb.sitemap._

import net.liftweb.util._

import net.liftweb.util.Helpers._

import net.tz.lift.model._

import net.tz.lift.snippet._

trait TaskNotification extends Loggable {

  def viewLoc: Loc[Task]

  def panel(t: Task): CssTr

  def apply(orig: Box[Task], task: Box[Task]) {

    for {

      t <- task

    } {

      val submitter = t.createdBy.valueBox

      val resp = t.responsible.valueBox

      val respN = t.responsible.user.dmap("")(_.linkName)

      val origResp = orig map(_.responsible.valueBox)

      val origRespU = orig flatMap(_.responsible.user)

      val updater = t.updatedBy.valueBox

      val by = t.updatedBy.user.dmap("")(_.linkName)

      logger.debug("Executing notifications for task %s".format(t.linkName))

      val ne = new NotificationEngine

      import ne._

      execute {

        val cnt = content(panel(t))

        val _title = title("*" #> a(viewLoc.calcHref(t))(viewLoc.title(t)))

        "Task update" when(origResp == resp) then (

          subject(l10n("[Task %s] %s modified by %s", t.numberStr, t.linkName, by)),

          _title, cnt,

          to(t.createdBy.user filterNot { u => updater == submitter }),

          to(t.responsible.user filterNot { u => updater == resp })

        )

        "Task assignment" when(!(origResp == resp)) then (

          subject(l10n("[Task %s] %s assigned to %s by %s", t.numberStr, t.linkName, respN, by)),

          _title, cnt,

          to(t.createdBy.user filterNot { u => updater == submitter }),

          to(origRespU filterNot { u => updater == origResp })

        )

        "Task assigned to you" when(!(origResp == resp) && !(updater == resp)) then (

          subject(l10n("[Task %s] %s assigned to you by %s", t.numberStr, t.linkName, by)),

          _title, cnt,

          to(t.responsible.user)

        )

      } foreach { res =>

        S notice(l10n("Sent notification to [%s] with subject %s",

          res._3 mkString ",", res._2))

      }

    }

  }

}

// vim: set ts=2 sw=2 et: