🎨 Move buildPath to src and add jest.

Author: nkmr-jp

package.json

@@ -17,6 +17,10 @@
     "api-to-go": "bin/api-to-go.js"
   },
   "dependencies": {
+    "js-yaml": "^4.1.0",
     "node-fetch": "2"
+  },
+  "devDependencies": {
+    "jest": "^28.1.1"
   }
 }

src/.api-to-go.test.yaml

@@ -0,0 +1,3 @@
+api.github.com:
+  - /users/{user}
+  - /users/{user}/repos

src/buildPath.js

@@ -0,0 +1,49 @@
+const yaml = require("js-yaml");
+const fs = require("fs");
+
+function buildPath(apiUrl, configFile = "./.api-to-go.yaml") {
+  // TODO: configのパターンを検知してpathを変換
+
+  const url = new URL(apiUrl);
+  _buildPath(url, configFile)
+  const path = `${url.hostname}${url.pathname}`
+
+  const pathArr = path.split("/")
+  const pkg = pathArr[pathArr.length - 2].replace(/\./g, '')
+  const last = pathArr[pathArr.length - 1] || "index"
+  const struct = _capitalize(last)
+  pathArr.pop()
+  const dir = pathArr.join("/")
+  return {
+    struct,
+    pkg,
+    dir,
+    jsonFilePath: `${dir}/${last}_sample.json`,
+    goFilePath: `${dir}/${last}.go`
+  }
+}
+
+function _capitalize(str) {
+  const lower = str.toLowerCase();
+  return str.charAt(0).toUpperCase() + lower.slice(1);
+}
+
+function _loadConfig(configFile) {
+  try {
+    return yaml.load(fs.readFileSync(configFile, 'utf8'));
+  } catch (e) {
+    console.log(e);
+  }
+}
+
+function _buildPath(url, configFile) {
+  const cfg = _loadConfig(configFile)
+  const hostCfg = cfg?.[url.hostname]
+  if (hostCfg !== undefined) {
+    for (let i = 0; i < hostCfg.length; i++) {
+      console.log(hostCfg[i])
+    }
+  }
+}
+
+module.exports = buildPath;

src/buildPath.test.js

@@ -0,0 +1,16 @@
+const buildPath = require('./buildPath');
+
+test('build path', () => {
+  const expected = {
+    "dir": "api.github.com/users/github",
+    "goFilePath": "api.github.com/users/github/repos.go",
+    "jsonFilePath": "api.github.com/users/github/repos_sample.json",
+    "pkg": "github",
+    "struct": "Repos"
+  }
+  const received = buildPath(
+    "https://api.github.com/users/github/repos",
+    "./.api-to-go.test.yaml"
+  )
+  expect(received).toEqual(expected);
+});