feat: add CommandCode provider support

open-sse/translator/request/openai-to-commandcode.js

@@ -0,0 +1,81 @@
+/**
+ * OpenAI → CommandCode request translator
+ *
+ * CommandCode endpoint expects an envelope:
+ *   { threadId, memory, config, params: { model, messages, stream, max_tokens, temperature, tools? } }
+ * where `params.messages` are Anthropic-style content blocks ([{type:"text", text}, ...]).
+ *
+ * The model id received here is the upstream id (e.g. "deepseek/deepseek-v4-pro") thanks to the
+ * `provider/model` registration in providerModels.js.
+ */
+import { register } from "../index.js";
+import { FORMATS } from "../formats.js";
+import { randomUUID } from "crypto";
+
+function toContentBlocks(content) {
+  if (content == null) return [{ type: "text", text: "" }];
+  if (typeof content === "string") return [{ type: "text", text: content }];
+  if (Array.isArray(content)) {
+    const blocks = [];
+    for (const part of content) {
+      if (typeof part === "string") {
+        blocks.push({ type: "text", text: part });
+      } else if (part && typeof part === "object") {
+        if (part.type === "text" && typeof part.text === "string") {
+          blocks.push({ type: "text", text: part.text });
+        } else if (part.type === "image_url" || part.type === "image") {
+          // CommandCode currently rejects multimodal blocks via this gateway;
+          // collapse to a textual placeholder so the request still validates.
+          blocks.push({ type: "text", text: "[image omitted]" });
+        } else if (typeof part.text === "string") {
+          blocks.push({ type: "text", text: part.text });
+        }
+      }
+    }
+    return blocks.length ? blocks : [{ type: "text", text: "" }];
+  }
+  return [{ type: "text", text: String(content) }];
+}
+
+function convertMessages(messages = []) {
+  return messages.map((m) => {
+    const role = m.role === "tool" ? "user" : (m.role || "user");
+    return { role, content: toContentBlocks(m.content) };
+  });
+}
+
+export function openaiToCommandCode(model, body, stream /* , credentials */) {
+  const params = {
+    model,
+    messages: convertMessages(body.messages),
+    stream: stream !== false,
+    max_tokens: body.max_tokens ?? body.max_output_tokens ?? 64000,
+    temperature: body.temperature ?? 0.3,
+  };
+
+  if (Array.isArray(body.tools) && body.tools.length > 0) {
+    params.tools = body.tools;
+  }
+  if (body.top_p != null) params.top_p = body.top_p;
+
+  const today = new Date().toISOString().slice(0, 10);
+
+  return {
+    threadId: randomUUID(),
+    memory: "",
+    config: {
+      workingDir: process.cwd(),
+      date: today,
+      environment: process.platform,
+      structure: [],
+      isGitRepo: false,
+      currentBranch: "",
+      mainBranch: "",
+      gitStatus: "",
+      recentCommits: [],
+    },
+    params,
+  };
+}
+
+register(FORMATS.OPENAI, FORMATS.COMMANDCODE, openaiToCommandCode, null);