<!DOCTYPE html>
<!--
Copyright (c) 2013 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<link rel="import" href="/tracing/base/base.html">
<link rel="import" href="/tracing/model/event_set.html">
<link rel="import" href="/tracing/ui/analysis/generic_object_view.html">
<link rel="import" href="/tracing/ui/analysis/multi_event_summary.html">
<link rel="import" href="/tracing/ui/base/table.html">
<link rel="import" href="/tracing/value/ui/scalar_span.html">
<link rel="import" href="/tracing/value/unit.html">

<polymer-element name='tr-ui-a-multi-event-details-table'>
  <template>
    <style>
    :host {
      display: flex;
      flex-direction: column;
    }
    #table {
      flex: 1 1 auto;
      align-self: stretch;
    }

    #titletable {
      font-weight: bold;
    }

    #title-info {
      font-size: 12px;
    }
    </style>
    <tr-ui-b-table id="titletable">
    </tr-ui-b-table>
    <tr-ui-b-table id="table">
    </tr-ui-b-table>
  </template>

  <script>
  'use strict';

  Polymer({
    created: function() {
      this.selection_ = undefined;
      this.eventsHaveDuration_ = true;
      this.eventsHaveSubRows_ = true;
    },

    ready: function() {
      this.initTitleTable_();
    },

    get eventsHaveDuration() {
      return this.eventsHaveDuration_;
    },

    set eventsHaveDuration(eventsHaveDuration) {
      this.eventsHaveDuration_ = eventsHaveDuration;
      this.updateContents_();
    },

    get eventsHaveSubRows() {
      return this.eventsHaveSubRows_;
    },

    set eventsHaveSubRows(eventsHaveSubRows) {
      this.eventsHaveSubRows_ = eventsHaveSubRows;
      this.updateContents_();
    },

    get selection() {
      return this.selection_;
    },

    set selection(selection) {
      this.selection_ = selection;
      this.updateContents_();
    },

    updateContents_: function() {
      var selection = this.selection_;

      this.updateTitleTable_();

      if (this.selection_ === undefined) {
        this.$.table.tableRows = [];
        this.$.table.tableFooterRows = [];
        this.$.table.rebuild();
        return;
      }

      var summary = new tr.ui.analysis.MultiEventSummary(
          'Totals', this.selection_);
      this.updateColumns_(summary);
      this.updateRows_(summary);
      this.$.table.rebuild();
    },

    initTitleTable_: function() {
      var table = this.$.titletable;

      table.showHeader = false;
      table.tableColumns = [
        {
          title: 'Title',
          value: function(row) { return row.title; },
          width: '350px'
        },
        {
          title: 'Value',
          width: '100%',
          value: function(row) {
            return row.value;
          }
        }
      ];
    },

    updateTitleTable_: function() {
      var title;
      if (this.selection_ && this.selection_.length)
        title = this.selection_[0].title;
      else
        title = '<No selection>';

      var table = this.$.titletable;
      table.tableRows = [{
        title: 'Title',
        value: title
      }];
    },

    updateColumns_: function(summary) {
      var hasCpuData;
      if (summary.cpuDuration !== undefined)
        hasCpuData = true;
      if (summary.cpuSelfTime !== undefined)
        hasCpuData = true;

      var colWidthPercentage;
      if (hasCpuData)
        colWidthPercentage = '20%';
      else
        colWidthPercentage = '33.3333%';

      var ownerDocument = this.ownerDocument;
      var columns = [];

      columns.push({
        title: 'Start',
        value: function(row) {
          if (row.__proto__ === tr.ui.analysis.MultiEventSummary.prototype) {
            return row.title;
          }

          var linkEl = document.createElement('tr-ui-a-analysis-link');
          linkEl.setSelectionAndContent(function() {
              return new tr.model.EventSet(row.event);
          });
          linkEl.appendChild(tr.v.ui.createScalarSpan(row.start, {
            unit: tr.v.Unit.byName.timeStampInMs,
            ownerDocument: ownerDocument
          }));
          return linkEl;
        },
        width: '350px',
        cmp: function(rowA, rowB) {
          return rowA.start - rowB.start;
        }
      });

      if (this.eventsHaveDuration_) {
        columns.push({
          title: 'Wall Duration (ms)',
          value: function(row) {
            return tr.v.ui.createScalarSpan(row.duration, {
              unit: tr.v.Unit.byName.timeDurationInMs,
              ownerDocument: ownerDocument
            });
          },
          width: '<upated further down>',
          cmp: function(rowA, rowB) {
            return rowA.duration - rowB.duration;
          }
        });
      }

      if (this.eventsHaveDuration_ && hasCpuData) {
        columns.push({
          title: 'CPU Duration (ms)',
          value: function(row) {
            return tr.v.ui.createScalarSpan(row.cpuDuration, {
              unit: tr.v.Unit.byName.timeDurationInMs,
              ownerDocument: ownerDocument
            });
          },
          width: '<upated further down>',
          cmp: function(rowA, rowB) {
            return rowA.cpuDuration - rowB.cpuDuration;
          }
        });
      }

      if (this.eventsHaveSubRows_ && this.eventsHaveDuration_) {
        columns.push({
          title: 'Self time (ms)',
          value: function(row) {
            return tr.v.ui.createScalarSpan(row.selfTime, {
              unit: tr.v.Unit.byName.timeDurationInMs,
              ownerDocument: ownerDocument
            });
          },
          width: '<upated further down>',
          cmp: function(rowA, rowB) {
            return rowA.selfTime - rowB.selfTime;
          }
        });
      }

      if (this.eventsHaveSubRows_ && this.eventsHaveDuration_ && hasCpuData) {
        columns.push({
          title: 'CPU Self Time (ms)',
          value: function(row) {
            return tr.v.ui.createScalarSpan(row.cpuSelfTime, {
              unit: tr.v.Unit.byName.timeDurationInMs,
              ownerDocument: ownerDocument
            });
          },
          width: '<upated further down>',
          cmp: function(rowA, rowB) {
            return rowA.cpuSelfTime - rowB.cpuSelfTime;
          }
        });
      }

      var argKeys = tr.b.dictionaryKeys(summary.totalledArgs);
      argKeys.sort();

      var otherKeys = summary.untotallableArgs.slice(0);
      otherKeys.sort();

      argKeys.push.apply(argKeys, otherKeys);
      var keysWithColumns = argKeys.slice(0, 4);
      var keysInOtherColumn = argKeys.slice(4);

      keysWithColumns.forEach(function(argKey) {

        var hasTotal = summary.totalledArgs[argKey];
        var colDesc = {
          title: 'Arg: ' + argKey,
          value: function(row) {
            if (row.__proto__ !== tr.ui.analysis.MultiEventSummary.prototype) {
              var argView =
                  document.createElement('tr-ui-a-generic-object-view');
              argView.object = row.args[argKey];
              return argView;
            }
            if (hasTotal)
              return row.totalledArgs[argKey];
            return '';
          },
          width: '<upated further down>'
        };
        if (hasTotal) {
          colDesc.cmp = function(rowA, rowB) {
            return rowA.args[argKey] - rowB.args[argKey];
          };
        }
        columns.push(colDesc);
      });

      if (keysInOtherColumn.length) {
        columns.push({
          title: 'Other Args',
          value: function(row) {
            if (row.__proto__ === tr.ui.analysis.MultiEventSummary.prototype)
              return '';
            var argView =
                document.createElement('tr-ui-a-generic-object-view');
            var obj = {};
            for (var i = 0; i < keysInOtherColumn.length; i++)
              obj[keysInOtherColumn[i]] = row.args[keysInOtherColumn[i]];
            argView.object = obj;
            return argView;
          },
          width: '<upated further down>'
        });
      }

      var colWidthPercentage;
      if (columns.length == 1)
        colWidthPercentage = '100%';
      else
        colWidthPercentage = (100 / (columns.length - 1)).toFixed(3) + '%';

      for (var i = 1; i < columns.length; i++)
        columns[i].width = colWidthPercentage;

      this.$.table.tableColumns = columns;
    },

    updateRows_: function(summary) {
      this.$.table.sortColumnIndex = 0;
      function Row(event) {
        this.event = event;
      }
      Row.prototype = {
        get start() { return this.event.start; },
        get duration() { return this.event.duration; },
        get cpuDuration() { return this.event.cpuDuration; },
        get selfTime() { return this.event.selfTime; },
        get cpuSelfTime() { return this.event.cpuSelfTime; },
        get args() { return this.event.args; }
      };

      this.$.table.tableRows = this.selection_.map(function(event) {
        return new Row(event);
      });
      this.$.table.footerRows = [summary];
    }
  });
</script>
</polymer-element>