name: build-windows-exe

on:
  push:
    tags:
      - 'v*.*.*'

jobs:
  build:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    env:
      BUILD_VERSION: ${{ github.ref_name }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '24'
          cache: npm

      - name: Install dependencies
        run: npm ci

      - name: Clean dist
        run: rm -f dist/*.exe

      - name: Generate release notes
        run: |
          python - <<'PY'
          import os
          import pathlib
          import subprocess

          tag = os.environ["BUILD_VERSION"]

          try:
            previous_tag = subprocess.check_output(
              ["git", "describe", "--tags", "--abbrev=0", f"{tag}^"],
              text=True,
            ).strip()
          except subprocess.CalledProcessError:
            previous_tag = ""

          log_range = f"{previous_tag}..{tag}" if previous_tag else tag
          subjects = subprocess.check_output(
            ["git", "log", "--pretty=format:%s", log_range],
            text=True,
          ).splitlines()

          notes = []
          for subject in subjects:
            subject = subject.strip()
            if not subject:
              continue
            if subject.startswith("chore: bump version"):
              continue
            if subject.lower() == "no message":
              continue
            notes.append(f"- {subject}")

          if not notes:
            notes = ["- Release build and version bump."]

          body = "## What\'s new\n\n" + "\n".join(notes) + "\n"
          pathlib.Path("release-notes.md").write_text(body, encoding="utf-8")
          print(body)
          PY

      - name: Build Windows executable
        run: npm run build:win

      - name: Publish release
        uses: softprops/action-gh-release@v3
        with:
          tag_name: ${{ github.ref_name }}
          name: gSheets-Rate-Assistant ${{ github.ref_name }}
          body_path: release-notes.md
          files: dist/*.exe

      - name: Mirror release to GitHub
        env:
          GITHUB_TOKEN: ${{ secrets.RELEASE_GITHUB_TOKEN }}
          RELEASE_GITHUB_REPO: ${{ secrets.RELEASE_GITHUB_REPO }}
        run: |
          python - <<'PY'
          import json
          import os
          import sys
          import urllib.error
          import urllib.parse
          import urllib.request

          token = os.environ.get("GITHUB_TOKEN", "")
          repository = os.environ.get("RELEASE_GITHUB_REPO", "")

          if not token or not repository:
            print("Skipping GitHub mirror because RELEASE_GITHUB_REPO or RELEASE_GITHUB_TOKEN is missing.")
            raise SystemExit(0)

          tag = os.environ["BUILD_VERSION"]
          release_name = f"gSheets-Rate-Assistant {tag}"
          asset_path = next((os.path.join("dist", name) for name in os.listdir("dist") if name.endswith(".exe")), None)
          with open("release-notes.md", "r", encoding="utf-8") as notes_file:
            release_notes = notes_file.read()

          if asset_path is None:
            raise SystemExit("No Windows executable found in dist/")

          def request_json(url, method="GET", payload=None, headers=None):
            request_headers = {
              "Authorization": f"Bearer {token}",
              "Accept": "application/vnd.github+json",
              "X-GitHub-Api-Version": "2022-11-28",
            }
            if headers:
              request_headers.update(headers)

            data = None if payload is None else json.dumps(payload).encode("utf-8")
            if data is not None:
              request_headers["Content-Type"] = "application/json"

            request = urllib.request.Request(url, data=data, method=method, headers=request_headers)
            try:
              with urllib.request.urlopen(request) as response:
                body = response.read().decode("utf-8")
                return json.loads(body) if body else {}
            except urllib.error.HTTPError as error:
              message = error.read().decode("utf-8", errors="replace")
              print(message, file=sys.stderr)
              raise

          release_url = f"https://api.github.com/repos/{repository}/releases/tags/{urllib.parse.quote(tag)}"
          release = None

          try:
            release = request_json(release_url)
          except urllib.error.HTTPError as error:
            if error.code != 404:
              raise

          payload = {
            "tag_name": tag,
            "name": release_name,
            "body": release_notes,
            "draft": False,
            "prerelease": False,
            "generate_release_notes": False,
          }

          if release is None:
            release = request_json(f"https://api.github.com/repos/{repository}/releases", method="POST", payload=payload)
          else:
            release = request_json(release["url"], method="PATCH", payload=payload)

          asset_name = os.path.basename(asset_path)
          for asset in release.get("assets", []):
            if asset.get("name") == asset_name:
              request_json(asset["url"], method="DELETE")

          upload_url = release["upload_url"].split("{", 1)[0]
          with open(asset_path, "rb") as asset_file:
            asset_data = asset_file.read()

          upload_request = urllib.request.Request(
            f"{upload_url}?name={urllib.parse.quote(asset_name)}",
            data=asset_data,
            method="POST",
            headers={
              "Authorization": f"Bearer {token}",
              "Accept": "application/vnd.github+json",
              "Content-Type": "application/octet-stream",
              "X-GitHub-Api-Version": "2022-11-28",
            },
          )

          try:
            with urllib.request.urlopen(upload_request) as response:
              response.read()
          except urllib.error.HTTPError as error:
            message = error.read().decode("utf-8", errors="replace")
            print(message, file=sys.stderr)
            raise
          PY