feat(SW-1968): Alternate opening hours for restaurants

Approved-by: Matilda Landström

apps/scandic-web/components/OpeningHours/utils.ts

@@ -0,0 +1,88 @@
+import type { IntlShape } from "react-intl"
+
+import type { RestaurantOpeningHours } from "@/types/hotel"
+
+export function getGroupedOpeningHours(
+  openingHours: RestaurantOpeningHours,
+  intl: IntlShape
+): string[] {
+  const closedMsg = intl.formatMessage({ id: "Closed" })
+  const alwaysOpenMsg = intl.formatMessage({ id: "Always open" })
+
+  // In order
+  const weekdayDefinitions = [
+    {
+      key: "monday",
+      label: intl.formatMessage({ id: "Monday" }),
+    },
+    {
+      key: "tuesday",
+      label: intl.formatMessage({ id: "Tuesday" }),
+    },
+    {
+      key: "wednesday",
+      label: intl.formatMessage({ id: "Wednesday" }),
+    },
+    {
+      key: "thursday",
+      label: intl.formatMessage({ id: "Thursday" }),
+    },
+    {
+      key: "friday",
+      label: intl.formatMessage({ id: "Friday" }),
+    },
+    {
+      key: "saturday",
+      label: intl.formatMessage({ id: "Saturday" }),
+    },
+    {
+      key: "sunday",
+      label: intl.formatMessage({ id: "Sunday" }),
+    },
+  ] as const
+
+  const groupedOpeningHours: string[] = []
+
+  let rangeWeekdays: string[] = []
+  let rangeValue = ""
+  for (let i = 0, n = weekdayDefinitions.length; i < n; ++i) {
+    const weekdayDefinition = weekdayDefinitions[i]
+    const weekday = openingHours[weekdayDefinition.key]
+    const label = weekdayDefinition.label
+    if (weekday) {
+      let newValue = null
+
+      if (weekday.alwaysOpen) {
+        newValue = alwaysOpenMsg
+      } else if (weekday.isClosed) {
+        newValue = closedMsg
+      } else if (weekday.openingTime && weekday.closingTime) {
+        newValue = `${weekday.openingTime}-${weekday.closingTime}`
+      }
+
+      if (newValue !== null) {
+        if (rangeValue === newValue) {
+          if (rangeWeekdays.length > 1) {
+            rangeWeekdays.splice(-1, 1, label) // Replace last element
+          } else {
+            rangeWeekdays.push(label)
+          }
+        } else {
+          if (rangeValue) {
+            groupedOpeningHours.push(
+              `${rangeWeekdays.join("-")}: ${rangeValue}`
+            )
+          }
+          rangeValue = newValue
+          rangeWeekdays = [label]
+        }
+      }
+
+      if (rangeValue && i === n - 1) {
+        // Flush everything at the end
+        groupedOpeningHours.push(`${rangeWeekdays.join("-")}: ${rangeValue}`)
+      }
+    }
+  }
+  return groupedOpeningHours
+}