feat: add resident BingShuo TCS controller

server-tools/bingshuo-tcs-controller/model-client.mjs

@@ -0,0 +1,81 @@
+const DEFAULT_TIMEOUT_MS = 45_000;
+
+function extractJson(text) {
+  const value = String(text || "").trim();
+  if (!value) throw new Error("model_response_empty");
+  try {
+    return JSON.parse(value);
+  } catch {
+    const fenced = value.match(/```(?:json)?\s*([\s\S]*?)```/i);
+    if (fenced) return JSON.parse(fenced[1]);
+    const first = value.indexOf("{");
+    const last = value.lastIndexOf("}");
+    if (first >= 0 && last > first) return JSON.parse(value.slice(first, last + 1));
+    throw new Error("model_response_not_json");
+  }
+}
+
+export class DeepSeekJsonClient {
+  constructor({
+    apiKey = process.env.DEEPSEEK_API_KEY,
+    apiUrl = process.env.DEEPSEEK_API_URL || "https://api.deepseek.com/v1",
+    model = process.env.DEEPSEEK_MODEL || "deepseek-chat",
+    fetchImpl = globalThis.fetch,
+    timeoutMs = DEFAULT_TIMEOUT_MS,
+  } = {}) {
+    if (!apiKey) throw new Error("deepseek_api_key_missing");
+    if (!fetchImpl) throw new Error("fetch_unavailable");
+    this.apiKey = apiKey;
+    this.apiUrl = String(apiUrl).replace(/\/+$/, "");
+    this.model = model;
+    this.fetchImpl = fetchImpl;
+    this.timeoutMs = timeoutMs;
+  }
+
+  async generate({ role, instruction, input, validatorError = null }) {
+    const controller = new AbortController();
+    const timer = setTimeout(() => controller.abort(), this.timeoutMs);
+    try {
+      const response = await this.fetchImpl(`${this.apiUrl}/chat/completions`, {
+        method: "POST",
+        headers: {
+          authorization: `Bearer ${this.apiKey}`,
+          "content-type": "application/json",
+        },
+        body: JSON.stringify({
+          model: this.model,
+          stream: false,
+          temperature: role === "controller_witness" ? 0.1 : 0.2,
+          response_format: { type: "json_object" },
+          messages: [
+            {
+              role: "system",
+              content:
+                "你是光湖语言世界中的有界模型运行位。只输出一个JSON对象，不输出思维过程、Markdown或额外说明。不得伪造现实成功、权限、冰朔的新意志或未提供的事实。",
+            },
+            {
+              role: "user",
+              content: JSON.stringify({
+                role,
+                instruction,
+                validator_error_from_previous_attempt: validatorError,
+                runtime_input: input,
+              }),
+            },
+          ],
+        }),
+        signal: controller.signal,
+      });
+      if (!response.ok) {
+        throw new Error(`model_http_${response.status}`);
+      }
+      const payload = await response.json();
+      const text = payload?.choices?.[0]?.message?.content;
+      return extractJson(text);
+    } finally {
+      clearTimeout(timer);
+    }
+  }
+}
+
+export { extractJson };