Introduce timeRange query helpers

ui/spec/shared/query/helpersSpec.js

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+import {timeRangeType, shiftTimeRange} from 'shared/query/helpers'
+import {ABSOLUTE} from 'shared/constants/timeRange'
+const format = 'influxql'
+
+describe.only('Shared.Query.Helpers', () => {
+  describe('timeRangeTypes', () => {
+    it('return invlalid if no upper and lower', () => {
+      const upper = null
+      const lower = null
+
+      const timeRange = {lower, upper}
+
+      expect(timeRangeType(timeRange)).to.equal(ABSOLUTE)
+    })
+
+    it('it can detect absolute type', () => {
+      const tenMinutes = 600000
+      const upper = Date.now()
+      const lower = upper - tenMinutes
+
+      const timeRange = {lower, upper, format}
+
+      expect(timeRangeType(timeRange)).to.equal(ABSOLUTE)
+    })
+  })
+})

ui/src/shared/constants/timeRange.js

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+export const ABSOLUTE = 'absolute'
+export const INVALID = 'invalid'

ui/src/shared/query/helpers.js

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+import moment from 'moment'
+import {ABSOLUTE} from 'shared/constants/timeRange'
+
+// calc time range type
+export const timeRangeType = ({upper, lower, type}) => {
+  if (!upper && !lower) {
+    return 'invalid'
+  }
+
+  if (!type || type === 'influxql') {
+    const mUpper = moment(upper)
+    const mLower = moment(lower)
+    const isUpperValid = mUpper.isValid()
+    const isLowerValid = mLower.isValid()
+
+    if (isUpperValid && isLowerValid) {
+      return ABSOLUTE
+    }
+  }
+
+  return 'none'
+}
+
+// based on time range type, calc the time shifted dates