From 10282fd797de13844cf23ff6accedf588a9031dc Mon Sep 17 00:00:00 2001
From: Fayaz Ahmed <fayazara@gmail.com>
Date: Fri, 9 Aug 2024 19:21:35 +0530
Subject: [PATCH] chore: Replace nextAvailibility mixing with the new
 useNextAvailability composable and test

---
 .../widget/components/TeamAvailability.vue    |   3 +-
 .../widget/composables/useAvailability.js     |  19 +-
 .../widget/composables/useNextAvailability.js | 281 ++++++++++++++++++
 .../specs/useAvailabilityComposable.spec.js   |   2 +-
 4 files changed, 293 insertions(+), 12 deletions(-)
 create mode 100644 app/javascript/widget/composables/useNextAvailability.js

diff --git a/app/javascript/widget/components/TeamAvailability.vue b/app/javascript/widget/components/TeamAvailability.vue
index 1c4b989f5..868309855 100644
--- a/app/javascript/widget/components/TeamAvailability.vue
+++ b/app/javascript/widget/components/TeamAvailability.vue
@@ -1,7 +1,6 @@
 <script>
 import { mapGetters } from 'vuex';
 import { getContrastingTextColor } from '@chatwoot/utils';
-import nextAvailabilityTime from 'widget/mixins/nextAvailabilityTime';
 import AvailableAgents from 'widget/components/AvailableAgents.vue';
 import configMixin from 'widget/mixins/configMixin';
 import { useAvailability } from 'widget/composables/useAvailability';
@@ -15,7 +14,7 @@ export default {
     AvailableAgents,
     FluentIcon,
   },
-  mixins: [configMixin, nextAvailabilityTime],
+  mixins: [configMixin],
   props: {
     availableAgents: {
       type: Array,
diff --git a/app/javascript/widget/composables/useAvailability.js b/app/javascript/widget/composables/useAvailability.js
index 53fc5c973..8ea726c12 100644
--- a/app/javascript/widget/composables/useAvailability.js
+++ b/app/javascript/widget/composables/useAvailability.js
@@ -2,27 +2,28 @@ import { computed } from 'vue';
 import { utcToZonedTime } from 'date-fns-tz';
 import { isTimeAfter } from 'shared/helpers/DateHelper';
 import { useI18n } from 'dashboard/composables/useI18n';
-
+import { useNextAvailability } from './useNextAvailability';
 /**
  * Composable for handling availability-related computations.
- * @param {Object} $t - Vue i18n instance for translations.
+ * @param {Object} t - Vue i18n instance for translations.
  * @returns {Object} An object containing computed properties and methods for availability management.
  */
 export function useAvailability(availableAgents) {
-  const { t: $t } = useI18n();
+  const { timeLeftToBackInOnline } = useNextAvailability();
+  const { t } = useI18n();
   const channelConfig = computed(() => window.chatwootWebChannel);
   const replyTime = computed(() => window.chatwootWebChannel.replyTime);
 
   const replyTimeStatus = computed(() => {
     switch (replyTime.value) {
       case 'in_a_few_minutes':
-        return $t('REPLY_TIME.IN_A_FEW_MINUTES');
+        return t('REPLY_TIME.IN_A_FEW_MINUTES');
       case 'in_a_few_hours':
-        return $t('REPLY_TIME.IN_A_FEW_HOURS');
+        return t('REPLY_TIME.IN_A_FEW_HOURS');
       case 'in_a_day':
-        return $t('REPLY_TIME.IN_A_DAY');
+        return t('REPLY_TIME.IN_A_DAY');
       default:
-        return $t('REPLY_TIME.IN_A_FEW_HOURS');
+        return t('REPLY_TIME.IN_A_FEW_HOURS');
     }
   });
 
@@ -31,11 +32,11 @@ export function useAvailability(availableAgents) {
     if (workingHoursEnabled) {
       return isOnline.value
         ? replyTimeStatus.value
-        : `${$t('REPLY_TIME.BACK_IN')} ${timeLeftToBackInOnline.value}`;
+        : `${t('REPLY_TIME.BACK_IN')} ${timeLeftToBackInOnline.value}`;
     }
     return isOnline.value
       ? replyTimeStatus.value
-      : $t('TEAM_AVAILABILITY.OFFLINE');
+      : t('TEAM_AVAILABILITY.OFFLINE');
   });
 
   const outOfOfficeMessage = computed(
diff --git a/app/javascript/widget/composables/useNextAvailability.js b/app/javascript/widget/composables/useNextAvailability.js
new file mode 100644
index 000000000..d0ca137a0
--- /dev/null
+++ b/app/javascript/widget/composables/useNextAvailability.js
@@ -0,0 +1,281 @@
+import { ref, computed } from 'vue';
+import { useI18n } from 'dashboard/composables/useI18n';
+import {
+  timeSlotParse,
+  defaultTimeSlot,
+} from 'dashboard/routes/dashboard/settings/inbox/helpers/businessHour.js';
+import { utcToZonedTime } from 'date-fns-tz';
+import { generateRelativeTime } from 'shared/helpers/DateHelper';
+
+const MINUTE_ROUNDING_FACTOR = 5;
+
+/**
+ * Composable for handling next availability calculations
+ * @returns {Object} An object containing computed properties and methods for next availability management
+ */
+export function useNextAvailability() {
+  const { t } = useI18n();
+  const dayNames = t('DAY_NAMES');
+  const timeSlots = ref([...defaultTimeSlot]);
+  const timeSlot = ref({});
+
+  const channelConfig = computed(() => window.chatwootWebChannel);
+  const workingHours = computed(() => channelConfig.value.workingHours);
+  const newDateWithTimeZone = computed(() =>
+    utcToZonedTime(new Date(), timeZoneValue.value)
+  );
+  const presentHour = computed(() => newDateWithTimeZone.value.getHours());
+  const presentMinute = computed(() => newDateWithTimeZone.value.getMinutes());
+  const currentDay = computed(() => {
+    const date = newDateWithTimeZone.value;
+    const day = date.getDay();
+    const currentDay = Object.keys(dayNames).find(
+      key => dayNames[key] === dayNames[day]
+    );
+    return Number(currentDay);
+  });
+  const timeZoneValue = computed(() => channelConfig.value.timezone);
+  const languageCode = computed(() => window.chatwootWebChannel.locale);
+
+  const currentDayWorkingHours = computed(() =>
+    workingHours.value.find(slot => slot.day_of_week === currentDay.value)
+  );
+
+  const nextDayWorkingHours = computed(() => {
+    let nextDay = getNextDay(currentDay.value);
+    let nextWorkingHour = getNextWorkingHour(nextDay);
+
+    while (!nextWorkingHour) {
+      nextDay = getNextDay(nextDay);
+      nextWorkingHour = getNextWorkingHour(nextDay);
+    }
+    return nextWorkingHour;
+  });
+
+  const currentDayTimings = computed(() => {
+    const {
+      open_hour: openHour,
+      open_minutes: openMinute,
+      close_hour: closeHour,
+    } = currentDayWorkingHours.value ?? {};
+    return {
+      openHour,
+      openMinute,
+      closeHour,
+    };
+  });
+
+  const nextDayTimings = computed(() => {
+    const { open_hour: openHour, open_minutes: openMinute } =
+      nextDayWorkingHours.value ?? {};
+    return {
+      openHour,
+      openMinute,
+    };
+  });
+
+  const dayDiff = computed(() => {
+    const nextDay = nextDayWorkingHours.value.day_of_week;
+    const totalDays = 6;
+    return nextDay > currentDay.value
+      ? nextDay - currentDay.value - 1
+      : totalDays - currentDay.value + nextDay;
+  });
+
+  const dayNameOfNextWorkingDay = computed(
+    () => dayNames[nextDayWorkingHours.value.day_of_week]
+  );
+
+  const hoursAndMinutesBackInOnline = computed(() => {
+    if (presentHour.value >= currentDayTimings.value.closeHour) {
+      return getHoursAndMinutesUntilNextDayOpen(
+        nextDayWorkingHours.value.open_all_day
+          ? 0
+          : nextDayTimings.value.openHour,
+        nextDayTimings.value.openMinute,
+        currentDayTimings.value.closeHour
+      );
+    }
+    return getHoursAndMinutesUntilNextDayOpen(
+      currentDayTimings.value.openHour,
+      currentDayTimings.value.openMinute,
+      currentDayTimings.value.closeHour
+    );
+  });
+
+  const exactTimeInAmPm = computed(
+    () =>
+      `${
+        timeSlot.value.day === currentDay.value
+          ? `at ${timeSlot.value.from}`
+          : ''
+      }`
+  );
+
+  const hoursAndMinutesLeft = computed(() => {
+    const { hoursLeft, minutesLeft } = hoursAndMinutesBackInOnline.value;
+
+    const timeLeftChars = [];
+
+    if (hoursLeft > 0) {
+      const roundedUpHoursLeft = minutesLeft > 0 ? hoursLeft + 1 : hoursLeft;
+      const hourRelative = generateRelativeTime(
+        roundedUpHoursLeft,
+        'hour',
+        languageCode.value
+      );
+      timeLeftChars.push(`${hourRelative}`);
+    }
+
+    if (minutesLeft > 0 && hoursLeft === 0) {
+      const roundedUpMinLeft =
+        Math.ceil(minutesLeft / MINUTE_ROUNDING_FACTOR) *
+        MINUTE_ROUNDING_FACTOR;
+      const minRelative = generateRelativeTime(
+        roundedUpMinLeft,
+        'minutes',
+        languageCode.value
+      );
+      timeLeftChars.push(`${minRelative}`);
+    }
+
+    return timeLeftChars.join(' ');
+  });
+
+  const hoursAndMinutesToBack = computed(() => {
+    const { hoursLeft, minutesLeft } = hoursAndMinutesBackInOnline.value;
+    if (hoursLeft >= 3) {
+      return exactTimeInAmPm.value;
+    }
+    if (hoursLeft > 0 || minutesLeft > 0) {
+      return hoursAndMinutesLeft.value;
+    }
+    return 'in some time';
+  });
+
+  const timeLeftToBackInOnline = computed(() => {
+    if (
+      hoursAndMinutesBackInOnline.value.hoursLeft >= 24 ||
+      (timeSlot.value.day !== currentDay.value && dayDiff.value === 0)
+    ) {
+      const hourRelative = generateRelativeTime(
+        dayDiff.value + 1,
+        'days',
+        languageCode.value
+      );
+      return `${hourRelative}`;
+    }
+    if (
+      dayDiff.value >= 1 &&
+      presentHour.value >= currentDayTimings.value.closeHour
+    ) {
+      return `on ${dayNameOfNextWorkingDay.value}`;
+    }
+    return hoursAndMinutesToBack.value;
+  });
+
+  /**
+   * Gets the next day of the week
+   * @param {number} day - Current day of the week
+   * @returns {number} Next day of the week
+   */
+  function getNextDay(day) {
+    return (day + 1) % 7;
+  }
+
+  /**
+   * Gets the next working hour for a given day
+   * @param {number} day - Day of the week
+   * @returns {Object|null} Working hour object for the next working day, or null if not found
+   */
+  function getNextWorkingHour(day) {
+    const workingHour = workingHours.value.find(
+      slot => slot.day_of_week === day
+    );
+    if (workingHour && !workingHour.closed_all_day) {
+      return workingHour;
+    }
+    return null;
+  }
+
+  /**
+   * Calculates hours and minutes until next day open
+   * @param {number} openHour - Opening hour
+   * @param {number} openMinutes - Opening minutes
+   * @param {number} closeHour - Closing hour
+   * @returns {Object} Object containing hours and minutes left
+   */
+  function getHoursAndMinutesUntilNextDayOpen(
+    openHour,
+    openMinutes,
+    closeHour
+  ) {
+    if (closeHour < openHour) {
+      openHour += 24;
+    }
+    let diffMinutes =
+      openHour * 60 +
+      openMinutes -
+      (presentHour.value * 60 + presentMinute.value);
+    diffMinutes = diffMinutes < 0 ? diffMinutes + 24 * 60 : diffMinutes;
+    const [hoursLeft, minutesLeft] = [
+      Math.floor(diffMinutes / 60),
+      diffMinutes % 60,
+    ];
+
+    return { hoursLeft, minutesLeft };
+  }
+
+  /**
+   * Sets the time slot
+   */
+  function setTimeSlot() {
+    const timeSlots = workingHours.value;
+
+    const currentSlot =
+      presentHour.value >= currentDayTimings.value.closeHour
+        ? nextDayWorkingHours.value
+        : currentDayWorkingHours.value;
+
+    const slots = timeSlotParse(timeSlots).length
+      ? timeSlotParse(timeSlots)
+      : defaultTimeSlot;
+    timeSlots.value = slots;
+
+    timeSlot.value = timeSlots.value.find(
+      slot => slot.day === currentSlot.day_of_week
+    );
+  }
+
+  // Call setTimeSlot initially
+  setTimeSlot();
+
+  return {
+    dayNames,
+    timeSlots,
+    timeSlot,
+    channelConfig,
+    workingHours,
+    newDateWithTimeZone,
+    presentHour,
+    presentMinute,
+    currentDay,
+    timeZoneValue,
+    languageCode,
+    currentDayWorkingHours,
+    nextDayWorkingHours,
+    currentDayTimings,
+    nextDayTimings,
+    dayDiff,
+    dayNameOfNextWorkingDay,
+    hoursAndMinutesBackInOnline,
+    exactTimeInAmPm,
+    hoursAndMinutesLeft,
+    hoursAndMinutesToBack,
+    timeLeftToBackInOnline,
+    getNextDay,
+    getNextWorkingHour,
+    getHoursAndMinutesUntilNextDayOpen,
+    setTimeSlot,
+  };
+}
diff --git a/app/javascript/widget/mixins/specs/useAvailabilityComposable.spec.js b/app/javascript/widget/mixins/specs/useAvailabilityComposable.spec.js
index 3715803cf..0b72e8f10 100644
--- a/app/javascript/widget/mixins/specs/useAvailabilityComposable.spec.js
+++ b/app/javascript/widget/mixins/specs/useAvailabilityComposable.spec.js
@@ -99,6 +99,6 @@ describe('useAvailability', () => {
     vi.setSystemTime(new Date('Wed Apr 13 2022 18:00:00 GMT-0700'));
     const availableAgents = ref([]);
     const { replyWaitMessage } = useAvailability(availableAgents);
-    expect(replyWaitMessage.value).toBe('TEAM_AVAILABILITY.OFFLINE');
+    expect(replyWaitMessage.value).toBe('REPLY_TIME.BACK_IN at 08:30 AM');
   });
 });