import { execFileSync } from "node:child_process";
import { mkdirSync, writeFileSync } from "node:fs";
import { fileURLToPath } from "node:url";
import path from "node:path";

const projectRoot = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
const openApiUrl = process.env.OPENAPI_URL || "http://localhost:5090/openapi/v1.json";
const response = await fetch(openApiUrl);
if (!response.ok) {
  throw new Error(`OpenAPI 下载失败：${response.status} ${response.statusText}`);
}

const document = await response.json();
const generatedDir = path.join(projectRoot, ".generated");
const apiDir = path.join(projectRoot, "src", "api");
mkdirSync(generatedDir, { recursive: true });
mkdirSync(apiDir, { recursive: true });

const snapshotPath = path.join(generatedDir, "openapi.json");
writeFileSync(snapshotPath, `${JSON.stringify(document)}\n`);

const cli = path.join(
  projectRoot,
  "node_modules",
  ".bin",
  process.platform === "win32" ? "openapi-typescript.cmd" : "openapi-typescript",
);
execFileSync(cli, [snapshotPath, "-o", path.join(apiDir, "schema.generated.d.ts")], {
  stdio: "inherit",
});

console.log(`已生成前端 OpenAPI 类型，来源：${openApiUrl}`);