From cd632cb988cf9cff17f209c863cd60820aa5fd0f Mon Sep 17 00:00:00 2001
From: Johannes Schickling <schickling.j@gmail.com>
Date: Fri, 22 Sep 2023 16:24:22 +0200
Subject: [PATCH] WIP

---
 .github/workflows/ci.yml           | 25 +++++++++++++++
 .vscode/operators.code-snippets    | 22 +++++++++++++
 flake.nix                          |  1 +
 node-scripts/src/async-promises.ts | 51 ++++++++++++++++++++++++++++++
 node-scripts/tsconfig.json         | 10 ++++++
 5 files changed, 109 insertions(+)
 create mode 100644 .vscode/operators.code-snippets
 create mode 100644 node-scripts/src/async-promises.ts
 create mode 100644 node-scripts/tsconfig.json

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9feece3..b50d663 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,3 +29,28 @@ jobs:
         working-directory: starter-vite-tsc
       - run: pnpm build
         working-directory: starter-vite-tsc
+
+  node-scripts:
+    strategy:
+      matrix:
+        node-version: [16, 18, 20]
+        os: [ubuntu-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: pnpm/action-setup@v2
+        with:
+          version: 8
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'pnpm'
+      - run: pnpm install
+        working-directory: node-scripts
+      - run: pnpm tsc
+        working-directory: node-scripts
+      - run: pnpm tsx src/fs-write-file.ts
+        working-directory: node-scripts
+      - run: pnpm tsx src/async-promises.ts
+        working-directory: node-scripts
diff --git a/.vscode/operators.code-snippets b/.vscode/operators.code-snippets
new file mode 100644
index 0000000..1048c7b
--- /dev/null
+++ b/.vscode/operators.code-snippets
@@ -0,0 +1,22 @@
+{
+  "Effect Gen Function": {
+    "prefix": "egen",
+    "body": ["Effect.gen(function* ($) {\n\t$0\n})"],
+    "description": "Effect generator FUnction with $ input"
+  },
+  "Gen Function": {
+    "prefix": "gen",
+    "body": ["function* ($) {}"],
+    "description": "Generator FUnction with $ input"
+  },
+  "Gen Yield * tmp": {
+    "prefix": "yy",
+    "body": ["yield* $($0)"],
+    "description": "Yield generator calling $()"
+  },
+  "Gen Yield *": {
+    "prefix": "!",
+    "body": ["yield* $($0)"],
+    "description": "Yield generator calling $()"
+  }
+}
diff --git a/flake.nix b/flake.nix
index 11b948e..b317b14 100644
--- a/flake.nix
+++ b/flake.nix
@@ -16,6 +16,7 @@
       {
         devShell = with pkgs; pkgs.mkShell {
           buildInputs = [
+            act
             nodejs_20
             corepack
           ];
diff --git a/node-scripts/src/async-promises.ts b/node-scripts/src/async-promises.ts
new file mode 100644
index 0000000..72373d8
--- /dev/null
+++ b/node-scripts/src/async-promises.ts
@@ -0,0 +1,51 @@
+import * as Node from '@effect/platform-node/Runtime'
+import { Cause, Duration, Effect } from 'effect'
+import { TaggedClass } from 'effect/Data'
+
+// --- HELPERS ---
+
+const getMagicNumber = async () => {
+  await sleep(200)
+
+  return 42
+}
+
+const throwSomeError = async () => {
+  throw new Error('some error')
+}
+
+const sleep = (ms: number) => new Promise((resolve) => setTimeout(resolve, ms))
+
+class MyCustomError extends TaggedClass('MyCustomError')<{ readonly cause: unknown }> {}
+
+const someEffect = Effect.succeed(69).pipe(Effect.delay(Duration.seconds(0.5)))
+
+const someAsyncFnRunningAnEffect = async () => {
+  const result = await Effect.runPromise(someEffect)
+
+  return result
+}
+
+// --- MAIN ---
+
+const main = Effect.gen(function* ($) {
+  // calling a async function/promise from Effect
+  const result1 = yield* $(Effect.promise(() => getMagicNumber()))
+
+  console.log('Got result 1:', result1)
+
+  // calling a async function/promise from Effect (with error handling)
+  const result2 = yield* $(
+    Effect.tryPromise({ try: () => throwSomeError(), catch: (cause) => new MyCustomError({ cause }) }),
+    Effect.catchTag('MyCustomError', (error) => Effect.succeed(`Got error: ${error.cause}`)),
+  )
+
+  console.log('Got result 2:', result2)
+
+  // calling an Effect from an async function/promise
+  const result3 = yield* $(Effect.promise(() => someAsyncFnRunningAnEffect()))
+
+  console.log('Got result 3:', result3)
+})
+
+Node.runMain(main.pipe(Effect.tapErrorCause((_) => Effect.log(Cause.pretty(_)))))
diff --git a/node-scripts/tsconfig.json b/node-scripts/tsconfig.json
new file mode 100644
index 0000000..867e1e9
--- /dev/null
+++ b/node-scripts/tsconfig.json
@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "noEmit": true,
+    "module": "Node16",
+    "moduleResolution": "Node16",
+    "strict": true,
+    "plugins": [{ "name": "@effect/language-service" }],
+  },
+  "include": ["src/**/*.ts"]
+}