fix: add per-channel markdown table conversion (#1495) (thanks @odysseus0)

src/config/markdown-tables.ts

@@ -0,0 +1,60 @@
+import { normalizeChannelId } from "../channels/plugins/index.js";
+import { normalizeAccountId } from "../routing/session-key.js";
+import type { ClawdbotConfig } from "./config.js";
+import type { MarkdownTableMode } from "./types.base.js";
+
+type MarkdownConfigEntry = {
+  markdown?: {
+    tables?: MarkdownTableMode;
+  };
+};
+
+type MarkdownConfigSection = MarkdownConfigEntry & {
+  accounts?: Record<string, MarkdownConfigEntry>;
+};
+
+const DEFAULT_TABLE_MODES = new Map<string, MarkdownTableMode>([
+  ["signal", "bullets"],
+  ["whatsapp", "bullets"],
+]);
+
+const isMarkdownTableMode = (value: unknown): value is MarkdownTableMode =>
+  value === "off" || value === "bullets" || value === "code";
+
+function resolveMarkdownModeFromSection(
+  section: MarkdownConfigSection | undefined,
+  accountId?: string | null,
+): MarkdownTableMode | undefined {
+  if (!section) return undefined;
+  const normalizedAccountId = normalizeAccountId(accountId);
+  const accounts = section.accounts;
+  if (accounts && typeof accounts === "object") {
+    const direct = accounts[normalizedAccountId];
+    const directMode = direct?.markdown?.tables;
+    if (isMarkdownTableMode(directMode)) return directMode;
+    const matchKey = Object.keys(accounts).find(
+      (key) => key.toLowerCase() === normalizedAccountId.toLowerCase(),
+    );
+    const match = matchKey ? accounts[matchKey] : undefined;
+    const matchMode = match?.markdown?.tables;
+    if (isMarkdownTableMode(matchMode)) return matchMode;
+  }
+  const sectionMode = section.markdown?.tables;
+  return isMarkdownTableMode(sectionMode) ? sectionMode : undefined;
+}
+
+export function resolveMarkdownTableMode(params: {
+  cfg?: Partial<ClawdbotConfig>;
+  channel?: string | null;
+  accountId?: string | null;
+}): MarkdownTableMode {
+  const channel = normalizeChannelId(params.channel);
+  const defaultMode = channel ? (DEFAULT_TABLE_MODES.get(channel) ?? "code") : "code";
+  if (!channel || !params.cfg) return defaultMode;
+  const channelsConfig = params.cfg.channels as Record<string, unknown> | undefined;
+  const section = (channelsConfig?.[channel] ??
+    (params.cfg as Record<string, unknown> | undefined)?.[channel]) as
+    | MarkdownConfigSection
+    | undefined;
+  return resolveMarkdownModeFromSection(section, params.accountId) ?? defaultMode;
+}