feat: add plugin HTTP hooks + Zalo plugin

extensions/zalo/src/accounts.ts

@@ -0,0 +1,74 @@
+import type {
+  CoreConfig,
+  ResolvedZaloAccount,
+  ZaloAccountConfig,
+  ZaloConfig,
+} from "./types.js";
+import { resolveZaloToken } from "./token.js";
+import { DEFAULT_ACCOUNT_ID, normalizeAccountId } from "./shared/account-ids.js";
+
+function listConfiguredAccountIds(cfg: CoreConfig): string[] {
+  const accounts = (cfg.channels?.zalo as ZaloConfig | undefined)?.accounts;
+  if (!accounts || typeof accounts !== "object") return [];
+  return Object.keys(accounts).filter(Boolean);
+}
+
+export function listZaloAccountIds(cfg: CoreConfig): string[] {
+  const ids = listConfiguredAccountIds(cfg);
+  if (ids.length === 0) return [DEFAULT_ACCOUNT_ID];
+  return ids.sort((a, b) => a.localeCompare(b));
+}
+
+export function resolveDefaultZaloAccountId(cfg: CoreConfig): string {
+  const zaloConfig = cfg.channels?.zalo as ZaloConfig | undefined;
+  if (zaloConfig?.defaultAccount?.trim()) return zaloConfig.defaultAccount.trim();
+  const ids = listZaloAccountIds(cfg);
+  if (ids.includes(DEFAULT_ACCOUNT_ID)) return DEFAULT_ACCOUNT_ID;
+  return ids[0] ?? DEFAULT_ACCOUNT_ID;
+}
+
+function resolveAccountConfig(
+  cfg: CoreConfig,
+  accountId: string,
+): ZaloAccountConfig | undefined {
+  const accounts = (cfg.channels?.zalo as ZaloConfig | undefined)?.accounts;
+  if (!accounts || typeof accounts !== "object") return undefined;
+  return accounts[accountId] as ZaloAccountConfig | undefined;
+}
+
+function mergeZaloAccountConfig(cfg: CoreConfig, accountId: string): ZaloAccountConfig {
+  const raw = (cfg.channels?.zalo ?? {}) as ZaloConfig;
+  const { accounts: _ignored, defaultAccount: _ignored2, ...base } = raw;
+  const account = resolveAccountConfig(cfg, accountId) ?? {};
+  return { ...base, ...account };
+}
+
+export function resolveZaloAccount(params: {
+  cfg: CoreConfig;
+  accountId?: string | null;
+}): ResolvedZaloAccount {
+  const accountId = normalizeAccountId(params.accountId);
+  const baseEnabled = (params.cfg.channels?.zalo as ZaloConfig | undefined)?.enabled !== false;
+  const merged = mergeZaloAccountConfig(params.cfg, accountId);
+  const accountEnabled = merged.enabled !== false;
+  const enabled = baseEnabled && accountEnabled;
+  const tokenResolution = resolveZaloToken(
+    params.cfg.channels?.zalo as ZaloConfig | undefined,
+    accountId,
+  );
+
+  return {
+    accountId,
+    name: merged.name?.trim() || undefined,
+    enabled,
+    token: tokenResolution.token,
+    tokenSource: tokenResolution.source,
+    config: merged,
+  };
+}
+
+export function listEnabledZaloAccounts(cfg: CoreConfig): ResolvedZaloAccount[] {
+  return listZaloAccountIds(cfg)
+    .map((accountId) => resolveZaloAccount({ cfg, accountId }))
+    .filter((account) => account.enabled);
+}