Add paths with get requests for tables WIP

sql/openapi.sql

@@ -264,3 +264,69 @@ $$
     'externalValue', externalValue
   );
 $$;
+
+create or replace function oas_path_item_object(
+  ref text default null,
+  summary text default null,
+  description text default null,
+  get jsonb default null,
+  put jsonb default null,
+  post jsonb default null,
+  delete jsonb default null,
+  options jsonb default null,
+  head jsonb default null,
+  patch jsonb default null,
+  trace jsonb default null,
+  servers jsonb default null,
+  parameters jsonb default null
+)
+returns jsonb language sql as
+$$
+  select json_build_object(
+    '$ref', ref,
+    'summary', summary,
+    'description', description,
+    'get', get,
+    'put', put,
+    'post', post,
+    'delete', delete,
+    'options', options,
+    'head', head,
+    'patch', patch,
+    'trace', trace,
+    'servers', servers,
+    'parameters', parameters
+  )
+$$;
+
+create or replace function oas_operation_object(
+  tags text[] default null,
+  summary text default null,
+  description text default null,
+  externalDocs jsonb default null,
+  operationId text default null,
+  parameters jsonb default null,
+  requestBody jsonb default null,
+  responses jsonb default null,
+  callbacks jsonb default null,
+  deprecated boolean default null,
+  security jsonb default null,
+  servers jsonb default null
+)
+returns jsonb language sql as
+$$
+  select json_build_object(
+    'tags', tags,
+    'summary', summary,
+    'description', description,
+    'externalDocs', externalDocs,
+    'operationId', operationId,
+    'parameters', parameters,
+    'requestBody', requestBody,
+    'responses', responses,
+    'callbacks', callbacks,
+    'deprecated', deprecated,
+    'security', security,
+    'servers', servers
+  )
+$$;

sql/paths.sql

@@ -0,0 +1,32 @@
+-- Functions to build the Paths Object of the OAS document
+
+create or replace function oas_build_paths(
+  path_name text,
+  path_item_object jsonb,
+  schemas text[]
+)
+returns jsonb language sql as
+$$
+  select json_build_object(
+    '/' || path_name, path_item_object
+  )
+$$;
+
+create or replace function oas_build_path_items_from_tables(schemas text[])
+returns jsonb language sql as
+$$
+select jsonb_object_agg(x.path, x.oas_path_item)
+from (
+  select '/' || table_name as path,
+    oas_path_item_object(
+      description := table_description,
+      get :=oas_operation_object(
+        parameters := jsonb_build_array(
+          oas_build_reference_to_parameters('')
+        )
+      )
+    ) as oas_path_item
+  from postgrest_get_all_tables(schemas)
+  where table_schema = any(schemas)
+) x;
+$$;

sql/utils.sql

@@ -20,3 +20,11 @@ $$
     '#/components/schemas/' || "schema"
   );
 $$;
+
+create or replace function oas_build_reference_to_parameters(parameter text)
+returns jsonb language sql immutable as
+$$
+  select oas_reference_object(
+    '#/components/parameters/' || parameter
+  );
+$$;