From f03ef878932f2ea2e9357c270de167bd1468409d Mon Sep 17 00:00:00 2001
From: janiceelamm <janicelam0811@gmail.com>
Date: Fri, 21 Nov 2025 14:32:02 -0500
Subject: [PATCH] implement filter-general function

---
 src/app/api/filter-general/route.ts | 24 +++++++++++++++
 src/lib/api/filter_general.ts       | 45 +++++++++++++++++++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 src/app/api/filter-general/route.ts
 create mode 100644 src/lib/api/filter_general.ts

diff --git a/src/app/api/filter-general/route.ts b/src/app/api/filter-general/route.ts
new file mode 100644
index 0000000..807dc9f
--- /dev/null
+++ b/src/app/api/filter-general/route.ts
@@ -0,0 +1,24 @@
+import { filter_general } from "@/lib/api/filter_general";
+
+export async function GET(request: Request) {
+  const { searchParams } = new URL(request.url);
+
+  const op = searchParams.get("op");
+  const column = searchParams.get("column");
+  const values = searchParams.getAll("values");
+
+  if (!op || !column || values.length == 0) {
+    return Response.json(
+      { data: null, error: "Missing op, column, or values." },
+      { status: 400 }
+    );
+  }
+
+  const result = await filter_general(op, column, values);
+
+  if (result.error) {
+    return Response.json(result, { status: 400 });
+  }
+
+  return Response.json(result, { status: 200 });
+}
diff --git a/src/lib/api/filter_general.ts b/src/lib/api/filter_general.ts
new file mode 100644
index 0000000..c745cb2
--- /dev/null
+++ b/src/lib/api/filter_general.ts
@@ -0,0 +1,45 @@
+import { createClient } from "../client/supabase/server";
+
+export async function filter_general(
+  op: string,
+  column: string,
+  values: string[]
+) {
+  const valid_columns = [
+    "name_org",
+    "pseudonym",
+    "pronouns",
+    "email",
+    "phone",
+    "position",
+    "opt_in_communication",
+  ];
+
+  if (!valid_columns.includes(column)) {
+    return { data: null, error: "Invalid column name" };
+  }
+
+  const client = await createClient();
+
+  if (values.length == 0) {
+    return { data: null, error: "No values provided." };
+  }
+
+  if (op == "AND") {
+    const uniqueValues = [...new Set(values)];
+
+    if (uniqueValues.length > 1) {
+      return { data: [], error: null }; // Return empty result if there are multiple unique values
+    }
+
+    const value = uniqueValues[0];
+
+    const result = await client.from("Volunteers").select().eq(column, value);
+    return result;
+  }
+  if (op == "OR") {
+    const result = await client.from("Volunteers").select().in(column, values);
+    return result;
+  }
+  return { data: null, error: "Invalid operation." };
+}