1 files changed, 94 insertions, 0 deletions
diff --git a/lib/parsers.ts b/lib/parsers.ts
new file mode 100644
index 00000000..20f3107b
--- /dev/null
+++ b/lib/parsers.ts
@@ -0,0 +1,94 @@
+import type { ExtendedSortingState, Filter } from "@/types/table"
+import { type Row } from "@tanstack/react-table"
+import { createParser } from "nuqs/server"
+import { z } from "zod"
+
+import { dataTableConfig } from "@/config/data-table"
+
+export const sortingItemSchema = z.object({
+  id: z.string(),
+  desc: z.boolean(),
+})
+
+/**
+ * Creates a parser for TanStack Table sorting state.
+ * @param originalRow The original row data to validate sorting keys against.
+ * @returns A parser for TanStack Table sorting state.
+ */
+export const getSortingStateParser = <TData>(
+  originalRow?: Row<TData>["original"]
+) => {
+  const validKeys = originalRow ? new Set(Object.keys(originalRow)) : null
+
+  return createParser<ExtendedSortingState<TData>>({
+    parse: (value) => {
+      try {
+        const parsed = JSON.parse(value)
+        const result = z.array(sortingItemSchema).safeParse(parsed)
+
+        if (!result.success) return null
+
+        if (validKeys && result.data.some((item) => !validKeys.has(item.id))) {
+          return null
+        }
+
+        return result.data as ExtendedSortingState<TData>
+      } catch {
+        return null
+      }
+    },
+    serialize: (value) => JSON.stringify(value),
+    eq: (a, b) =>
+      a.length === b.length &&
+      a.every(
+        (item, index) =>
+          item.id === b[index]?.id && item.desc === b[index]?.desc
+      ),
+  })
+}
+
+export const filterSchema = z.object({
+  id: z.string(),
+  value: z.union([z.string(), z.array(z.string())]),
+  type: z.enum(dataTableConfig.columnTypes),
+  operator: z.enum(dataTableConfig.globalOperators),
+  rowId: z.string(),
+})
+
+/**
+ * Create a parser for data table filters.
+ * @param originalRow The original row data to create the parser for.
+ * @returns A parser for data table filters state.
+ */
+export const getFiltersStateParser = <T>(originalRow?: Row<T>["original"]) => {
+  const validKeys = originalRow ? new Set(Object.keys(originalRow)) : null
+
+  return createParser<Filter<T>[]>({
+    parse: (value) => {
+      try {
+        const parsed = JSON.parse(value)
+        const result = z.array(filterSchema).safeParse(parsed)
+
+        if (!result.success) return null
+
+        if (validKeys && result.data.some((item) => !validKeys.has(item.id))) {
+          return null
+        }
+
+        return result.data as Filter<T>[]
+      } catch {
+        return null
+      }
+    },
+    serialize: (value) => JSON.stringify(value),
+    eq: (a, b) =>
+      a.length === b.length &&
+      a.every(
+        (filter, index) =>
+          filter.id === b[index]?.id &&
+          filter.value === b[index]?.value &&
+          filter.type === b[index]?.type &&
+          filter.operator === b[index]?.operator
+      ),
+  })
+}