feat: support rule provider

1 files changed, 41 insertions, 0 deletions

diff --git a/src/api/rules.ts b/src/api/rules.ts
new file mode 100644
index 0000000..b57b0e3
--- /dev/null
+++ b/src/api/rules.ts
@@ -0,0 +1,41 @@
+import invariant from 'invariant';
+import { getURLAndInit } from 'src/misc/request-helper';
+import { ClashAPIConfig } from 'src/types';
+
+// const endpoint = '/rules';
+
+type RuleItem = RuleAPIItem & { id: number };
+
+type RuleAPIItem = {
+  type: string;
+  payload: string;
+  proxy: string;
+};
+
+function normalizeAPIResponse(json: {
+  rules: Array<RuleAPIItem>;
+}): Array<RuleItem> {
+  invariant(
+    json.rules && json.rules.length >= 0,
+    'there is no valid rules list in the rules API response'
+  );
+
+  // attach an id
+  return json.rules.map((r: RuleAPIItem, i: number) => ({ ...r, id: i }));
+}
+
+export async function fetchRules(endpoint: string, apiConfig: ClashAPIConfig) {
+  let json = { rules: [] };
+  try {
+    const { url, init } = getURLAndInit(apiConfig);
+    const res = await fetch(url + endpoint, init);
+    if (res.ok) {
+      json = await res.json();
+    }
+  } catch (err) {
+    // log and ignore
+    // eslint-disable-next-line no-console
+    console.log('failed to fetch rules', err);
+  }
+  return normalizeAPIResponse(json);
+}