version-release.yml

name: Version Update and Release

on:
  workflow_dispatch:
    inputs:
      version_name:
        description: 'New app version name, for example 1.0.4'
        required: true
        default: '1.0.4'
      version_code:
        description: 'New Android version code, must be higher than the previous value'
        required: true
        default: '5'
      create_release_tag:
        description: 'Create and push v<version_name> tag to trigger Android Release Build'
        required: true
        default: true
        type: boolean

permissions:
  contents: write

env:
  VERSION_FILE: app/build.gradle.kts

jobs:
  version-release:
    name: Update Version and Start Release
    runs-on: ubuntu-latest

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Configure Git
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"

      - name: Validate version inputs
        run: |
          set -euo pipefail

          VERSION_NAME='${{ inputs.version_name }}'
          VERSION_CODE='${{ inputs.version_code }}'

          if ! printf '%s' "$VERSION_NAME" | grep -Eq '^[0-9]+\.[0-9]+\.[0-9]+([-.][A-Za-z0-9]+)?$'; then
            echo "::error::version_name must look like 1.0.4, 1.0.4-beta, or 1.0.4-rc1"
            exit 1
          fi

          if ! printf '%s' "$VERSION_CODE" | grep -Eq '^[0-9]+$'; then
            echo "::error::version_code must be a positive integer"
            exit 1
          fi

          CURRENT_CODE="$(grep -E 'versionCode = [0-9]+' "$VERSION_FILE" | sed -E 's/.*versionCode = ([0-9]+).*/\1/')"
          if [ "$VERSION_CODE" -le "$CURRENT_CODE" ]; then
            echo "::error::version_code must be higher than current versionCode $CURRENT_CODE"
            exit 1
          fi

      - name: Update Android version
        run: |
          set -euo pipefail

          python3 - <<'PY'
          from pathlib import Path
          import re

          path = Path('app/build.gradle.kts')
          text = path.read_text()
          version_name = '${{ inputs.version_name }}'
          version_code = '${{ inputs.version_code }}'

          text = re.sub(r'versionCode = \d+', f'versionCode = {version_code}', text, count=1)
          text = re.sub(r'versionName = "[^"]+"', f'versionName = "{version_name}"', text, count=1)
          path.write_text(text)
          PY

          git diff -- "$VERSION_FILE"

      - name: Commit version update
        run: |
          set -euo pipefail

          VERSION_NAME='${{ inputs.version_name }}'

          if git diff --quiet -- "$VERSION_FILE"; then
            echo "No version changes detected."
            exit 0
          fi

          git add "$VERSION_FILE"
          git commit -m "chore: bump app version to $VERSION_NAME"
          git push origin HEAD:${{ github.ref_name }}

      - name: Create release tag
        if: ${{ inputs.create_release_tag == true }}
        run: |
          set -euo pipefail

          VERSION_NAME='${{ inputs.version_name }}'
          TAG="v$VERSION_NAME"

          git pull --ff-only origin ${{ github.ref_name }}

          if git rev-parse "$TAG" >/dev/null 2>&1; then
            echo "::error::Tag $TAG already exists locally. Choose a newer version."
            exit 1
          fi

          if git ls-remote --exit-code --tags origin "$TAG" >/dev/null 2>&1; then
            echo "::error::Tag $TAG already exists on origin. Choose a newer version."
            exit 1
          fi

          git tag -a "$TAG" -m "Release $TAG"
          git push origin "$TAG"

          echo "Created $TAG. Android Release Build will run from the tag trigger."