/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

// requires tableHelper

var oTable = [];

var killTask = function(taskId) {
  if(confirm('Do you really want to kill: '+taskId)) {
    $.ajax({
      type:'POST',
      url: '/druid/indexer/v1/task/'+ taskId +'/shutdown',
      data: ''
    }).done(function(data) {
      setTimeout(function() { location.reload(true) }, 750);
    }).fail(function(data) {
      alert('Kill request failed with status: '+data.status+' please check overlord logs');
    })
  }
}


var suspendSupervisor = function(supervisorId) {
  if(confirm('Do you really want to suspend: '+ supervisorId)) {
    $.ajax({
      type:'POST',
      url: '/druid/indexer/v1/supervisor/' + supervisorId + '/suspend',
      data: ''
    }).done(function(data) {
      setTimeout(function() { location.reload(true) }, 750);
    }).fail(function(data) {
      var errMsg = data && data.responseJSON && data.responseJSON.error ?
        data.responseJSON.error :
        'suspend request failed, please check overlord logs for details.';
      alert(errMsg);
    })
  }
}


var resumeSupervisor = function(supervisorId) {
  if(confirm('Do you really want to resume: '+ supervisorId)) {
    $.ajax({
      type:'POST',
      url: '/druid/indexer/v1/supervisor/' + supervisorId + '/resume',
      data: ''
    }).done(function(data) {
      setTimeout(function() { location.reload(true) }, 750);
    }).fail(function(data) {
      var errMsg = data && data.responseJSON && data.responseJSON.error ?
        data.responseJSON.error :
        'resume request failed, please check overlord logs for details.';
      alert(errMsg);
    })
  }
}

var resetSupervisor = function(supervisorId) {
  if(confirm('Do you really want to reset: '+ supervisorId)) {
    $.ajax({
      type:'POST',
      url: '/druid/indexer/v1/supervisor/' + supervisorId + '/reset',
      data: ''
    }).done(function(data) {
      setTimeout(function() { location.reload(true) }, 750);
    }).fail(function(data) {
      alert('Reset request failed, please check overlord logs for details.');
    })
  }
}

var shutdownSupervisor = function(supervisorId) {
  if(confirm('Do you really want to terminate: '+ supervisorId)) {
    $.ajax({
      type:'POST',
      url: '/druid/indexer/v1/supervisor/' + supervisorId + '/shutdown',
      data: ''
    }).done(function(data) {
      setTimeout(function() { location.reload(true) }, 750);
    }).fail(function(data) {
      alert('Terminate request failed, please check overlord logs for details.');
    })
  }
}

$(document).ready(function() {
  var augment = function(data, showKill) {
    for (var i = 0 ; i < data.length ; i++) {
      var taskId = encodeURIComponent(data[i].id)
      data[i].more =
        '<a href="/druid/indexer/v1/task/' + taskId + '">payload</a>' +
        '<a href="/druid/indexer/v1/task/' + taskId + '/status">status</a>' +
        '<a href="/druid/indexer/v1/task/' + taskId + '/log">log (all)</a>' +
        '<a href="/druid/indexer/v1/task/' + taskId + '/log?offset=-8192">log (last 8kb)</a>';
      if(showKill) {
        data[i].more += '<a onclick="killTask(\''+ taskId +'\');">kill</a>';
      }
    }
  }

  $.get('/druid/indexer/v1/supervisor?full', function(dataList) {

    var data = []
    for (var i = 0 ; i < dataList.length ; i++) {
      var supervisorId = encodeURIComponent(dataList[i].id)
      var supervisorSpec = dataList[i].spec;
      var statusText = supervisorSpec && supervisorSpec.suspended ?
        '<span style="color:#FF6000">suspended</span>' :
        '<span style="color:#08B157">running</span>';
      data[i] = {
        "dataSource" : dataList[i].id,
        "more" :
          '<a href="/druid/indexer/v1/supervisor/' + supervisorId + '">payload</a>' +
          '<a href="/druid/indexer/v1/supervisor/' + supervisorId + '/status">status</a>' +
          '<a href="/druid/indexer/v1/supervisor/' + supervisorId + '/history">history</a>' +
          (supervisorSpec.suspended ?
              '<a style="padding-right:5px;" onclick="resumeSupervisor(\'' + supervisorId + '\');">resume</a>' :
              '<a onclick="suspendSupervisor(\'' + supervisorId + '\');">suspend</a>'
          ) +
          '<a onclick="resetSupervisor(\'' + supervisorId + '\');">reset</a>' +
          '<a onclick="shutdownSupervisor(\'' + supervisorId + '\');">terminate</a>',
        "status": statusText
      }
    }
    buildTable((data), $('#supervisorsTable'));
    if (dataList.length > 0) {
      $('.supervisors_section').show();
    }
  });

  $.get('/druid/indexer/v1/runningTasks', function(data) {
    $('.running_loading').hide();
    augment(data, true);
    buildTable(data, $('#runningTable'));
  });

  $.get('/druid/indexer/v1/pendingTasks', function(data) {
    $('.pending_loading').hide();
    augment(data, true);
    buildTable(data, $('#pendingTable'));
  });

  $.get('/druid/indexer/v1/waitingTasks', function(data) {
    $('.waiting_loading').hide();
    augment(data, true);
    buildTable(data, $('#waitingTable'));
  });

  $.get('/druid/indexer/v1/completeTasks', function(data) {
    $('.complete_loading').hide();
    augment(data, false);
    buildTable(data, $('#completeTable'));
  });

  $.get('/druid/indexer/v1/workers', function(data) {
    $('.workers_loading').hide();
    buildTable(data, $('#workerTable'));
  });

  $.get('/druid/indexer/v1/scaling', function(data) {
    $('.events_loading').hide();
    buildTable(data, $('#eventTable'));
  });
});