refactoring using dependency injection

Author: sachin-panayil

src/create-deps.ts

@@ -0,0 +1,66 @@
+import * as core from "@actions/core";
+import * as fs from "fs/promises";
+import { Octokit as ActionKit } from "@octokit/action";
+import { createPullRequest } from "octokit-plugin-create-pull-request";
+import { exec } from "child_process";
+import { promisify } from "util";
+import { Dependencies } from "./types/Dependencies.js";
+
+const execAsync = promisify(exec);
+
+// builds the production level Dependencies object from the GitHub Actions environment
+export function createProductionDeps(): Dependencies {
+  const githubToken = core.getInput("GITHUB_TOKEN", { required: true });
+  const adminToken = core.getInput("ADMIN_TOKEN", { required: false });
+
+  const MyOctoKit = ActionKit.plugin(createPullRequest);
+
+  const octokit = new MyOctoKit({
+    auth: githubToken,
+    log: {
+      debug: core.debug,
+      info: core.info,
+      warn: core.warning,
+      error: core.error,
+    },
+  });
+
+  const adminOctokit = adminToken
+    ? new MyOctoKit({
+        auth: adminToken,
+        log: {
+          debug: core.debug,
+          info: core.info,
+          warn: core.warning,
+          error: core.error,
+        },
+      })
+    : null;
+
+  return {
+    owner: process.env.GITHUB_REPOSITORY_OWNER ?? "",
+    repo: process.env.GITHUB_REPOSITORY?.split("/")[1] ?? "",
+
+    githubToken,
+    adminToken,
+    branch: core.getInput("BRANCH", { required: false }),
+    skipPR: core.getInput("SKIP_PR", { required: false }) === "true",
+    isArchived: core.getInput("ARCHIVE", { required: false }) === "true",
+
+    octokit: octokit as unknown as Dependencies["octokit"],
+    adminOctokit: adminOctokit as unknown as Dependencies["adminOctokit"],
+
+    exec: execAsync,
+    readFile: (filepath: string) => fs.readFile(filepath, "utf8"),
+
+    log: {
+      info: core.info,
+      error: core.error,
+      warning: core.warning,
+      debug: core.debug,
+    },
+
+    setOutput: core.setOutput,
+    setFailed: core.setFailed,
+  };
+}