1import assert from "node:assert/strict";
2import fs from "node:fs/promises";
3import os from "node:os";
4import path from "node:path";
5import process from "node:process";
6import test, { type TestContext } from "node:test";
7 
8import { loadCredentials } from "./wechat-extend-config.ts";
9 
10function useCwd(t: TestContext, cwd: string): void {
11  const previous = process.cwd();
12  process.chdir(cwd);
13  t.after(() => {
14    process.chdir(previous);
15  });
16}
17 
18function useHome(t: TestContext, home: string): void {
19  const previous = process.env.HOME;
20  process.env.HOME = home;
21  t.after(() => {
22    if (previous === undefined) {
23      delete process.env.HOME;
24      return;
25    }
26    process.env.HOME = previous;
27  });
28}
29 
30function useWechatEnv(
31  t: TestContext,
32  values: Partial<Record<"WECHAT_APP_ID" | "WECHAT_APP_SECRET", string | undefined>>,
33): void {
34  const previous = {
35    WECHAT_APP_ID: process.env.WECHAT_APP_ID,
36    WECHAT_APP_SECRET: process.env.WECHAT_APP_SECRET,
37  };
38 
39  if (values.WECHAT_APP_ID === undefined) {
40    delete process.env.WECHAT_APP_ID;
41  } else {
42    process.env.WECHAT_APP_ID = values.WECHAT_APP_ID;
43  }
44 
45  if (values.WECHAT_APP_SECRET === undefined) {
46    delete process.env.WECHAT_APP_SECRET;
47  } else {
48    process.env.WECHAT_APP_SECRET = values.WECHAT_APP_SECRET;
49  }
50 
51  t.after(() => {
52    if (previous.WECHAT_APP_ID === undefined) {
53      delete process.env.WECHAT_APP_ID;
54    } else {
55      process.env.WECHAT_APP_ID = previous.WECHAT_APP_ID;
56    }
57 
58    if (previous.WECHAT_APP_SECRET === undefined) {
59      delete process.env.WECHAT_APP_SECRET;
60    } else {
61      process.env.WECHAT_APP_SECRET = previous.WECHAT_APP_SECRET;
62    }
63  });
64}
65 
66async function makeTempDir(prefix: string): Promise<string> {
67  return fs.mkdtemp(path.join(os.tmpdir(), prefix));
68}
69 
70async function writeEnvFile(root: string, content: string): Promise<void> {
71  const envPath = path.join(root, ".baoyu-skills", ".env");
72  await fs.mkdir(path.dirname(envPath), { recursive: true });
73  await fs.writeFile(envPath, content);
74}
75 
76test("loadCredentials selects the first complete source without mixing values across sources", async (t) => {
77  const cwdRoot = await makeTempDir("wechat-creds-cwd-");
78  const homeRoot = await makeTempDir("wechat-creds-home-");
79 
80  useCwd(t, cwdRoot);
81  useHome(t, homeRoot);
82  useWechatEnv(t, {
83    WECHAT_APP_ID: undefined,
84    WECHAT_APP_SECRET: "stale-secret-from-process-env",
85  });
86 
87  await writeEnvFile(cwdRoot, "WECHAT_APP_ID=cwd-app-id\nWECHAT_APP_SECRET=cwd-app-secret\n");
88  await writeEnvFile(homeRoot, "WECHAT_APP_ID=home-app-id\nWECHAT_APP_SECRET=home-app-secret\n");
89 
90  const credentials = loadCredentials();
91 
92  assert.equal(credentials.appId, "cwd-app-id");
93  assert.equal(credentials.appSecret, "cwd-app-secret");
94  assert.equal(credentials.source, "<cwd>/.baoyu-skills/.env");
95  assert.deepEqual(credentials.skippedSources, [
96    "process.env missing WECHAT_APP_ID",
97  ]);
98});
99 
100test("loadCredentials prefers a complete process.env pair over lower-priority files", async (t) => {
101  const cwdRoot = await makeTempDir("wechat-creds-cwd-");
102  const homeRoot = await makeTempDir("wechat-creds-home-");
103 
104  useCwd(t, cwdRoot);
105  useHome(t, homeRoot);
106  useWechatEnv(t, {
107    WECHAT_APP_ID: "env-app-id",
108    WECHAT_APP_SECRET: "env-app-secret",
109  });
110 
111  await writeEnvFile(cwdRoot, "WECHAT_APP_ID=cwd-app-id\nWECHAT_APP_SECRET=cwd-app-secret\n");
112  await writeEnvFile(homeRoot, "WECHAT_APP_ID=home-app-id\nWECHAT_APP_SECRET=home-app-secret\n");
113 
114  const credentials = loadCredentials();
115 
116  assert.equal(credentials.appId, "env-app-id");
117  assert.equal(credentials.appSecret, "env-app-secret");
118  assert.equal(credentials.source, "process.env");
119  assert.deepEqual(credentials.skippedSources, []);
120});
121 
122test("loadCredentials reports skipped incomplete sources when no complete pair exists", async (t) => {
123  const cwdRoot = await makeTempDir("wechat-creds-cwd-");
124  const homeRoot = await makeTempDir("wechat-creds-home-");
125 
126  useCwd(t, cwdRoot);
127  useHome(t, homeRoot);
128  useWechatEnv(t, {
129    WECHAT_APP_ID: "env-app-id",
130    WECHAT_APP_SECRET: undefined,
131  });
132 
133  await writeEnvFile(cwdRoot, "WECHAT_APP_SECRET=cwd-app-secret\n");
134 
135  assert.throws(
136    () => loadCredentials(),
137    /Incomplete credential sources skipped:\n- process\.env missing WECHAT_APP_SECRET\n- <cwd>\/\.baoyu-skills\/\.env missing WECHAT_APP_ID/,
138  );
139});
140