Timestrip plan Inspection (#3863)

* Stub in static HTML for Timestrip Activity Inspection
- Added static markup with placeholder values and display logic;
- Refined approach for Links;
* Refactor duration formatting
* Display activity name when it's available
* Don't use indices for keys
* Don't show properties with no labels

src/plugins/plan/Plan.vue

@@ -1,3 +1,25 @@
+<!--
+ Open MCT, Copyright (c) 2014-2020, United States Government
+ as represented by the Administrator of the National Aeronautics and Space
+ Administration. All rights reserved.
+
+ Open MCT is 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.
+
+ Open MCT includes source code licensed under additional open source
+ licenses. See the Open Source Licenses file (LICENSES.md) included with
+ this source code distribution or the Licensing information page available
+ at runtime from the About dialog for additional information.
+-->
+
 <template>
 <div ref="plan"
      class="c-plan c-timeline-holder"
@@ -28,7 +50,6 @@ import SwimLane from "@/ui/components/swim-lane/SwimLane.vue";
 import { getValidatedPlan } from "./util";
 import Vue from "vue";
 
-//TODO: UI direction needed for the following property values
 const PADDING = 1;
 const OUTER_TEXT_PADDING = 12;
 const INNER_TEXT_PADDING = 17;
@@ -281,7 +302,9 @@ export default {
                                 exceeds: {
                                     start: this.xScale(this.viewBounds.start) > this.xScale(activity.start),
                                     end: this.xScale(this.viewBounds.end) < this.xScale(activity.end)
-                                }
+                                },
+                                start: activity.start,
+                                end: activity.end
                             },
                             textLines: textLines,
                             textStart: textStart,
@@ -339,6 +362,9 @@ export default {
                 components: {
                     SwimLane
                 },
+                provide: {
+                    openmct: this.openmct
+                },
                 data() {
                     return {
                         heading,
@@ -376,7 +402,6 @@ export default {
                 activityRows.forEach((row) => {
                     const items = activitiesByRow[row];
                     items.forEach(item => {
-                    //TODO: Don't draw the left-border of the rectangle if the activity started before viewBounds.start
                         this.plotActivity(item, parseInt(row, 10), groupSVG);
                     });
                 });
@@ -399,6 +424,9 @@ export default {
                 element.setAttributeNS(null, key, attributes[key]);
             });
         },
+        getNSAttributesForElement(element, attribute) {
+            return element.getAttributeNS(null, attribute);
+        },
         // Experimental for now - unused
         addForeignElement(svgElement, label, x, y) {
             let foreign = document.createElementNS('http://www.w3.org/2000/svg', "foreignObject");
@@ -443,6 +471,10 @@ export default {
                 fill: activity.color
             });
 
+            rectElement.addEventListener('click', (event) => {
+                this.setSelectionForActivity(event.currentTarget, activity, event.metaKey);
+            });
+
             svgElement.appendChild(rectElement);
 
             item.textLines.forEach((line, index) => {
@@ -456,6 +488,9 @@ export default {
 
                 const textNode = document.createTextNode(line);
                 textElement.appendChild(textNode);
+                textElement.addEventListener('click', (event) => {
+                    this.setSelectionForActivity(event.currentTarget, activity, event.metaKey);
+                });
                 svgElement.appendChild(textElement);
             });
             // this.addForeignElement(svgElement, activity.name, item.textStart, item.textY - LINE_HEIGHT);
@@ -482,6 +517,22 @@ export default {
             const cBrightness = ((hR * 299) + (hG * 587) + (hB * 114)) / 1000;
 
             return cBrightness > cThreshold ? "#000000" : "#ffffff";
+        },
+        setSelectionForActivity(element, activity, multiSelect) {
+            this.openmct.selection.select([{
+                element: element,
+                context: {
+                    type: 'activity',
+                    activity: activity
+                }
+            }, {
+                element: this.openmct.layout.$refs.browseObject.$el,
+                context: {
+                    item: this.domainObject,
+                    supportsMultiSelect: true
+                }
+            }], multiSelect);
+            event.stopPropagation();
         }
     }
 };

src/plugins/plan/inspector/ActivityProperty.vue

@@ -0,0 +1,52 @@
+<!--
+ Open MCT, Copyright (c) 2014-2020, United States Government
+ as represented by the Administrator of the National Aeronautics and Space
+ Administration. All rights reserved.
+
+ Open MCT is 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.
+
+ Open MCT includes source code licensed under additional open source
+ licenses. See the Open Source Licenses file (LICENSES.md) included with
+ this source code distribution or the Licensing information page available
+ at runtime from the About dialog for additional information.
+-->
+
+<template>
+<li class="c-inspect-properties__row">
+    <div class="c-inspect-properties__label">
+        {{ label }}
+    </div>
+    <div class="c-inspect-properties__value">
+        {{ value }}
+    </div>
+</li>
+</template>
+
+<script>
+
+export default {
+    props: {
+        label: {
+            type: String,
+            default() {
+                return '';
+            }
+        },
+        value: {
+            type: String,
+            default() {
+                return '';
+            }
+        }
+    }
+};
+</script>

src/plugins/plan/inspector/PlanActivitiesView.vue

@@ -0,0 +1,206 @@
+<!--
+ Open MCT, Copyright (c) 2014-2021, United States Government
+ as represented by the Administrator of the National Aeronautics and Space
+ Administration. All rights reserved.
+
+ Open MCT is 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.
+
+ Open MCT includes source code licensed under additional open source
+ licenses. See the Open Source Licenses file (LICENSES.md) included with
+ this source code distribution or the Licensing information page available
+ at runtime from the About dialog for additional information.
+-->
+<template>
+<div class="c-inspector__properties c-inspect-properties">
+    <plan-activity-view v-for="activity in activities"
+                        :key="activity.id"
+                        :activity="activity"
+                        :heading="heading"
+    />
+</div>
+</template>
+
+<script>
+import PlanActivityView from "./PlanActivityView.vue";
+import { getPreciseDuration } from "utils/duration";
+import uuid from 'uuid';
+
+const propertyLabels = {
+    'start': 'Start DateTime',
+    'end': 'End DateTime',
+    'duration': 'Duration',
+    'earliestStart': 'Earliest Start',
+    'latestEnd': 'Latest End',
+    'gap': 'Gap',
+    'overlap': 'Overlap',
+    'totalTime': 'Total Time'
+};
+
+export default {
+    components: {
+        PlanActivityView
+    },
+    inject: ['openmct', 'selection'],
+    data() {
+        return {
+            name: '',
+            activities: [],
+            heading: ''
+        };
+    },
+    mounted() {
+        this.setFormatters();
+        this.getPlanData(this.selection);
+        this.getActivities();
+        this.openmct.selection.on('change', this.updateSelection);
+        this.openmct.time.on('timeSystem', this.setFormatters);
+    },
+    beforeDestroy() {
+        this.openmct.selection.off('change', this.updateSelection);
+        this.openmct.time.off('timeSystem', this.setFormatters);
+    },
+    methods: {
+        setFormatters() {
+            let timeSystem = this.openmct.time.timeSystem();
+            this.timeFormatter = this.openmct.telemetry.getValueFormatter({
+                format: timeSystem.timeFormat
+            }).formatter;
+        },
+        updateSelection(newSelection) {
+            this.getPlanData(newSelection);
+            this.getActivities();
+        },
+        getPlanData(selection) {
+            this.selectedActivities = [];
+            selection.forEach((selectionItem) => {
+                if (selectionItem[0].context.type === 'activity') {
+                    const activity = selectionItem[0].context.activity;
+                    if (activity) {
+                        this.selectedActivities.push(activity);
+                    }
+                }
+            });
+        },
+        getActivities() {
+            if (this.selectedActivities.length <= 1) {
+                this.heading = 'Time';
+                this.setSingleActivityProperties();
+            } else {
+                this.heading = 'Convex Hull';
+                this.setMultipleActivityProperties();
+            }
+        },
+        setSingleActivityProperties() {
+            this.activities.splice(0);
+            this.selectedActivities.forEach((selectedActivity, index) => {
+                const activity = {
+                    id: uuid(),
+                    start: {
+                        label: propertyLabels.start,
+                        value: this.formatTime(selectedActivity.start)
+                    },
+                    end: {
+                        label: propertyLabels.end,
+                        value: this.formatTime(selectedActivity.end)
+                    },
+                    duration: {
+                        label: propertyLabels.duration,
+                        value: this.formatDuration(selectedActivity.end - selectedActivity.start)
+                    }
+                };
+                this.$set(this.activities, index, activity);
+            });
+        },
+        sortFn(a, b) {
+            const numA = parseInt(a.start, 10);
+            const numB = parseInt(b.start, 10);
+            if (numA > numB) {
+                return 1;
+            }
+
+            if (numA < numB) {
+                return -1;
+            }
+
+            return 0;
+        },
+        setMultipleActivityProperties() {
+            this.activities.splice(0);
+
+            let earliestStart;
+            let latestEnd;
+            let gap;
+            let overlap;
+
+            //Sort by start time
+            let selectedActivities = this.selectedActivities.sort(this.sortFn);
+            selectedActivities.forEach((selectedActivity, index) => {
+                if (selectedActivities.length === 2 && index > 0) {
+                    const previous = selectedActivities[index - 1];
+                    //they're on different rows so there must be overlap
+                    if (previous.end > selectedActivity.start) {
+                        overlap = previous.end - selectedActivity.start;
+                    } else if (previous.end < selectedActivity.start) {
+                        gap = selectedActivity.start - previous.end;
+                    }
+                }
+
+                if (index > 0) {
+                    earliestStart = Math.min(earliestStart, selectedActivity.start);
+                    latestEnd = Math.max(latestEnd, selectedActivity.end);
+                } else {
+                    earliestStart = selectedActivity.start;
+                    latestEnd = selectedActivity.end;
+                }
+            });
+            let totalTime = latestEnd - earliestStart;
+
+            const activity = {
+                id: uuid(),
+                'earliestStart': {
+                    label: propertyLabels.earliestStart,
+                    value: this.formatTime(earliestStart)
+                },
+                'latestEnd': {
+                    label: propertyLabels.latestEnd,
+                    value: this.formatTime(latestEnd)
+                }
+            };
+
+            if (gap) {
+                activity.gap = {
+                    label: propertyLabels.gap,
+                    value: this.formatDuration(gap)
+                };
+            } else if (overlap) {
+                activity.overlap = {
+                    label: propertyLabels.overlap,
+                    value: this.formatDuration(overlap)
+                };
+            }
+
+            activity.totalTime = {
+                label: propertyLabels.totalTime,
+                value: this.formatDuration(totalTime)
+            };
+
+            this.$set(this.activities, 0, activity);
+        },
+        formatDuration(duration) {
+            return getPreciseDuration(duration);
+        },
+        formatTime(time) {
+            return this.timeFormatter.format(time);
+        }
+    }
+};
+</script>

src/plugins/plan/inspector/PlanActivityView.vue

@@ -0,0 +1,84 @@
+<!--
+ Open MCT, Copyright (c) 2014-2020, United States Government
+ as represented by the Administrator of the National Aeronautics and Space
+ Administration. All rights reserved.
+
+ Open MCT is 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.
+
+ Open MCT includes source code licensed under additional open source
+ licenses. See the Open Source Licenses file (LICENSES.md) included with
+ this source code distribution or the Licensing information page available
+ at runtime from the About dialog for additional information.
+-->
+
+<template>
+<div v-if="timeProperties.length"
+     class="u-contents"
+>
+    <div class="c-inspect-properties__header">
+        {{ heading }}
+    </div>
+    <ul v-for="timeProperty in timeProperties"
+        :key="timeProperty.id"
+        class="c-inspect-properties__section"
+    >
+        <activity-property :label="timeProperty.label"
+                           :value="timeProperty.value"
+        />
+    </ul>
+</div>
+</template>
+
+<script>
+import ActivityProperty from './ActivityProperty.vue';
+import uuid from 'uuid';
+
+export default {
+    components: {
+        ActivityProperty
+    },
+    props: {
+        activity: {
+            type: Object,
+            required: true
+        },
+        heading: {
+            type: String,
+            required: true
+        }
+    },
+    data() {
+        return {
+            timeProperties: []
+        };
+    },
+    mounted() {
+        this.setProperties();
+    },
+    methods: {
+        setProperties() {
+            Object.keys(this.activity).forEach((key) => {
+                if (this.activity[key].label) {
+                    const label = this.activity[key].label;
+                    const value = String(this.activity[key].value);
+
+                    this.$set(this.timeProperties, this.timeProperties.length, {
+                        id: uuid(),
+                        label,
+                        value
+                    });
+                }
+            });
+        }
+    }
+};
+</script>

src/plugins/plan/inspector/PlanInspectorViewProvider.js

@@ -0,0 +1,69 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2021, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is 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.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+import PlanActivitiesView from "./PlanActivitiesView.vue";
+import Vue from 'vue';
+
+export default function PlanInspectorViewProvider(openmct) {
+    return {
+        key: 'plan-inspector',
+        name: 'Plan Inspector View',
+        canView: function (selection) {
+            if (selection.length === 0 || selection[0].length === 0) {
+                return false;
+            }
+
+            let context = selection[0][0].context;
+
+            return context
+                && context.type === 'activity';
+        },
+        view: function (selection) {
+            let component;
+
+            return {
+                show: function (element) {
+                    component = new Vue({
+                        el: element,
+                        components: {
+                            PlanActivitiesView: PlanActivitiesView
+                        },
+                        provide: {
+                            openmct,
+                            selection: selection
+                        },
+                        template: '<plan-activities-view></plan-activities-view>'
+                    });
+                },
+                destroy: function () {
+                    if (component) {
+                        component.$destroy();
+                        component = undefined;
+                    }
+                }
+            };
+        },
+        priority: function () {
+            return 1;
+        }
+    };
+}

src/plugins/plan/plan.scss

@@ -1,3 +1,25 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2021, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is 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.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
 .c-plan {
   svg {
     text-rendering: geometricPrecision;

src/plugins/plan/plugin.js

@@ -21,6 +21,7 @@
  *****************************************************************************/
 
 import PlanViewProvider from './PlanViewProvider';
+import PlanInspectorViewProvider from "./inspector/PlanInspectorViewProvider";
 
 export default function () {
     return function install(openmct) {
@@ -44,6 +45,7 @@ export default function () {
             }
         });
         openmct.objectViews.addProvider(new PlanViewProvider(openmct));
+        openmct.inspectorViews.addProvider(new PlanInspectorViewProvider(openmct));
     };
 }
 

src/plugins/plan/util.js

@@ -1,3 +1,25 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2021, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is 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.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
 export function getValidatedPlan(domainObject) {
     let body = domainObject.selectFile.body;
     let json = {};

src/plugins/timeConductor/ConductorHistory.vue

@@ -39,9 +39,8 @@ const DEFAULT_DURATION_FORMATTER = 'duration';
 const LOCAL_STORAGE_HISTORY_KEY_FIXED = 'tcHistory';
 const LOCAL_STORAGE_HISTORY_KEY_REALTIME = 'tcHistoryRealtime';
 const DEFAULT_RECORDS = 10;
-const ONE_MINUTE = 60 * 1000;
-const ONE_HOUR = ONE_MINUTE * 60;
-const ONE_DAY = ONE_HOUR * 24;
+
+import { getDuration } from "utils/duration";
 
 export default {
     inject: ['openmct', 'configuration'],
@@ -143,7 +142,7 @@ export default {
                 let description = `${startTime} - ${this.formatTime(timespan.end)}`;
 
                 if (this.timeSystem.isUTCBased && !this.openmct.time.clock()) {
-                    name = `${startTime} ${this.getDuration(timespan.end - timespan.start)}`;
+                    name = `${startTime} ${getDuration(timespan.end - timespan.start)}`;
                 } else {
                     name = description;
                 }
@@ -176,41 +175,6 @@ export default {
                 };
             });
         },
-        getDuration(numericDuration) {
-            let result;
-            let age;
-
-            if (numericDuration > ONE_DAY - 1) {
-                age = this.normalizeAge((numericDuration / ONE_DAY).toFixed(2));
-                result = `+ ${age} day`;
-
-                if (age !== 1) {
-                    result += 's';
-                }
-            } else if (numericDuration > ONE_HOUR - 1) {
-                age = this.normalizeAge((numericDuration / ONE_HOUR).toFixed(2));
-                result = `+ ${age} hour`;
-
-                if (age !== 1) {
-                    result += 's';
-                }
-            } else {
-                age = this.normalizeAge((numericDuration / ONE_MINUTE).toFixed(2));
-                result = `+ ${age} min`;
-
-                if (age !== 1) {
-                    result += 's';
-                }
-            }
-
-            return result;
-        },
-        normalizeAge(num) {
-            const hundredtized = num * 100;
-            const isWhole = hundredtized % 100 === 0;
-
-            return isWhole ? hundredtized / 100 : num;
-        },
         getHistoryFromLocalStorage() {
             const localStorageHistory = localStorage.getItem(this.storageKey);
             const history = localStorageHistory ? JSON.parse(localStorageHistory) : undefined;

src/ui/inspector/ObjectName.vue

@@ -20,7 +20,12 @@
             <span class="c-object-label__type-icon"
                   :class="typeCssClass"
             ></span>
-            <span class="c-object-label__name">Layout Object</span>
+            <span v-if="!activity"
+                  class="c-object-label__name"
+            >Layout Object</span>
+            <span v-else
+                  class="c-object-label__name"
+            >{{ activity.name }}</span>
         </div>
     </div>
     <div v-if="multiSelect"
@@ -37,6 +42,7 @@ export default {
     data() {
         return {
             domainObject: {},
+            activity: undefined,
             keyString: undefined,
             multiSelect: false,
             itemsSelected: 0,
@@ -51,6 +57,10 @@ export default {
             return this.openmct.types.get(this.item.type);
         },
         typeCssClass() {
+            if (this.activity) {
+                return 'icon-activity';
+            }
+
             if (this.type.definition.cssClass === undefined) {
                 return 'icon-object';
             }
@@ -97,7 +107,7 @@ export default {
             } else {
                 this.multiSelect = false;
                 this.domainObject = selection[0][0].context.item;
-
+                this.activity = selection[0][0].context.activity;
                 if (this.domainObject) {
                     this.keyString = this.openmct.objects.makeKeyString(this.domainObject.identifier);
                     this.status = this.openmct.status.get(this.keyString);

src/ui/inspector/Properties.vue

@@ -1,5 +1,7 @@
 <template>
-<div class="c-inspector__properties c-inspect-properties">
+<div v-if="!activity"
+     class="c-inspector__properties c-inspect-properties"
+>
     <div class="c-inspect-properties__header">
         Details
     </div>
@@ -81,6 +83,7 @@ export default {
     data() {
         return {
             domainObject: {},
+            activity: undefined,
             multiSelect: false
         };
     },
@@ -157,6 +160,7 @@ export default {
             } else {
                 this.multiSelect = false;
                 this.domainObject = selection[0][0].context.item;
+                this.activity = selection[0][0].context.activity;
             }
         },
         formatTime(unixTime) {

src/utils/duration.js

@@ -0,0 +1,85 @@
+/*****************************************************************************
+ * Open MCT, Copyright (c) 2014-2021, United States Government
+ * as represented by the Administrator of the National Aeronautics and Space
+ * Administration. All rights reserved.
+ *
+ * Open MCT is 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.
+ *
+ * Open MCT includes source code licensed under additional open source
+ * licenses. See the Open Source Licenses file (LICENSES.md) included with
+ * this source code distribution or the Licensing information page available
+ * at runtime from the About dialog for additional information.
+ *****************************************************************************/
+
+const ONE_MINUTE = 60 * 1000;
+const ONE_HOUR = ONE_MINUTE * 60;
+const ONE_DAY = ONE_HOUR * 24;
+
+function normalizeAge(num) {
+    const hundredtized = num * 100;
+    const isWhole = hundredtized % 100 === 0;
+
+    return isWhole ? hundredtized / 100 : num;
+}
+
+function toDoubleDigits(num) {
+    if (num >= 10) {
+        return num;
+    } else {
+        return `0${num}`;
+    }
+}
+
+export function getDuration(numericDuration) {
+    let result;
+    let age;
+
+    if (numericDuration > ONE_DAY - 1) {
+        age = normalizeAge((numericDuration / ONE_DAY)).toFixed(2);
+        result = `+ ${age} day`;
+
+        if (age !== 1) {
+            result += 's';
+        }
+    } else if (numericDuration > ONE_HOUR - 1) {
+        age = normalizeAge((numericDuration / ONE_HOUR).toFixed(2));
+        result = `+ ${age} hour`;
+
+        if (age !== 1) {
+            result += 's';
+        }
+    } else {
+        age = normalizeAge((numericDuration / ONE_MINUTE).toFixed(2));
+        result = `+ ${age} min`;
+
+        if (age !== 1) {
+            result += 's';
+        }
+    }
+
+    return result;
+}
+
+export function getPreciseDuration(numericDuration) {
+    let result;
+
+    const days = toDoubleDigits(Math.floor((numericDuration) / (24 * 60 * 60 * 1000)));
+    let remaining = (numericDuration) % (24 * 60 * 60 * 1000);
+    const hours = toDoubleDigits(Math.floor((remaining) / (60 * 60 * 1000)));
+    remaining = (remaining) % (60 * 60 * 1000);
+    const minutes = toDoubleDigits(Math.floor((remaining) / (60 * 1000)));
+    remaining = (remaining) % (60 * 1000);
+    const seconds = toDoubleDigits(Math.floor((remaining) / (1000)));
+    result = `${days}:${hours}:${minutes}:${seconds}`;
+
+    return result;
+}