feat: add opencode local adapter support

packages/adapters/opencode-local/src/server/parse.ts

@@ -0,0 +1,82 @@
+import { asString, asNumber, parseObject, parseJson } from "@paperclipai/adapter-utils/server-utils";
+
+function asErrorText(value: unknown): string {
+  if (typeof value === "string") return value;
+  const rec = parseObject(value);
+  const message = asString(rec.message, "") || asString(rec.error, "") || asString(rec.code, "");
+  if (message) return message;
+  try {
+    return JSON.stringify(rec);
+  } catch {
+    return "";
+  }
+}
+
+export function parseOpenCodeJsonl(stdout: string) {
+  let sessionId: string | null = null;
+  const messages: string[] = [];
+  let errorMessage: string | null = null;
+  let totalCostUsd = 0;
+  const usage = {
+    inputTokens: 0,
+    cachedInputTokens: 0,
+    outputTokens: 0,
+  };
+
+  for (const rawLine of stdout.split(/\r?\n/)) {
+    const line = rawLine.trim();
+    if (!line) continue;
+
+    const event = parseJson(line);
+    if (!event) continue;
+
+    const foundSession = asString(event.sessionID, "").trim();
+    if (foundSession) sessionId = foundSession;
+
+    const type = asString(event.type, "");
+
+    if (type === "text") {
+      const part = parseObject(event.part);
+      const text = asString(part.text, "").trim();
+      if (text) messages.push(text);
+      continue;
+    }
+
+    if (type === "step_finish") {
+      const part = parseObject(event.part);
+      const tokens = parseObject(part.tokens);
+      const cache = parseObject(tokens.cache);
+      usage.inputTokens += asNumber(tokens.input, 0);
+      usage.cachedInputTokens += asNumber(cache.read, 0);
+      usage.outputTokens += asNumber(tokens.output, 0);
+      totalCostUsd += asNumber(part.cost, 0);
+      continue;
+    }
+
+    if (type === "error") {
+      const part = parseObject(event.part);
+      const msg = asErrorText(event.message ?? part.message ?? event.error ?? part.error).trim();
+      if (msg) errorMessage = msg;
+    }
+  }
+
+  return {
+    sessionId,
+    summary: messages.join("\n\n").trim(),
+    usage,
+    costUsd: totalCostUsd > 0 ? totalCostUsd : null,
+    errorMessage,
+  };
+}
+
+export function isOpenCodeUnknownSessionError(stdout: string, stderr: string): boolean {
+  const haystack = `${stdout}\n${stderr}`
+    .split(/\r?\n/)
+    .map((line) => line.trim())
+    .filter(Boolean)
+    .join("\n");
+
+  return /unknown\s+session|session\s+.*\s+not\s+found|resource\s+not\s+found:.*[\\/]session[\\/].*\.json|notfounderror/i.test(
+    haystack,
+  );
+}