Major Job Listings refactor

fbla-api/lib/fbla_api.dart

@@ -65,8 +65,8 @@ class Business {
 }
 
 class JobListing {
-  String? id;
-  String? businessId;
+  int? id;
+  int? businessId;
   String name;
   String description;
   JobType type;
@@ -188,6 +188,26 @@ void main() async {
       },
     );
   });
+  app.get('/fbla-api/businessdata/businessnames', (Request request) async {
+    print('business names request received');
+
+    var postgresResult = (await postgres.query('''
+      SELECT json_agg(
+        json_build_object(
+          'id', id,
+          'name', name
+        )
+      ) FROM public.businesses
+      '''))[0][0];
+
+    return Response.ok(
+      json.encode(postgresResult),
+      headers: {
+        'Access-Control-Allow-Origin': '*',
+        'Content-Type': 'text/plain'
+      },
+    );
+  });
   app.get('/fbla-api/businessdata/business/<business>',
       (Request request, String business) async {
     print('idividual business data request received');
@@ -209,6 +229,7 @@ void main() async {
             json_agg(
               json_build_object(
                   'id', l.id,
+                  'businessId', l."businessId",
                   'name', l.name,
                   'description', l.description,
                   'type', l.type,
@@ -231,11 +252,85 @@ void main() async {
       },
     );
   });
+  app.get('/fbla-api/businessdata/businesses', (Request request) async {
+    print('list of business data request received');
+
+    if (request.url.queryParameters['businesses'] == null) {
+      return Response.badRequest(
+        body: 'query \'businesses\' required',
+        headers: {
+          'Access-Control-Allow-Origin': '*',
+          'Content-Type': 'text/plain'
+        },
+      );
+    }
+    var filters = request.url.queryParameters['businesses']!.split(',');
+
+    var result = (await postgres.query('''
+        SELECT
+        json_build_object(
+          'id', b.id,
+          'name', b.name,
+          'description', b.description,
+          'website', b.website,
+          'contactName', b."contactName",
+          'contactEmail', b."contactEmail",
+          'contactPhone', b."contactPhone",
+          'notes', b.notes,
+          'locationName', b."locationName",
+          'locationAddress', b."locationAddress",
+          'listings',
+            json_agg(
+              json_build_object(
+                  'id', l.id,
+                  'businessId', l."businessId",
+                  'name', l.name,
+                  'description', l.description,
+                  'type', l.type,
+                  'wage', l.wage,
+                  'link', l.link
+              )
+            )
+        )
+        FROM businesses b
+        LEFT JOIN listings l ON b.id = l."businessId"
+        WHERE b.id IN ${'$filters'.replaceAll('[', '(').replaceAll(']', ')')}
+        GROUP BY b.id;
+    '''));
+
+    var output = result.map((element) => element[0]).toList();
+
+    return Response.ok(
+      json.encode(output),
+      headers: {
+        'Access-Control-Allow-Origin': '*',
+        'Content-Type': 'text/plain'
+      },
+    );
+  });
   app.get('/fbla-api/businessdata', (Request request) async {
     print('business data request received');
-    final output = await fetchBusinessData();
+    final result = await postgres.query('''
+    SELECT json_agg(
+      json_build_object(
+        'id', id,
+        'name', name,
+        'description', description,
+        'type', type,
+        'website', website,
+        'contactName', "contactName",
+        'contactEmail', "contactEmail",
+        'contactPhone', "contactPhone",
+        'notes', notes,
+        'locationName', "locationName",
+        'locationAddress', "locationAddress"
+      )
+    )  FROM businesses
+    ''');
+
+    var encoded = json.encode(result[0][0]);
     return Response.ok(
-      output.toString(),
+      encoded,
       headers: {
         'Access-Control-Allow-Origin': '*',
         'Content-Type': 'text/plain'