name: Android CI (PR)

on:
  pull_request:
    branches:
      - main
  workflow_dispatch:

concurrency:
  group: build-pr-${{ github.ref }}
  cancel-in-progress: true

jobs:
  check-changes:
    if: github.repository == 'meshtastic/Meshtastic-Android' && !( github.head_ref == 'scheduled-updates' || github.head_ref == 'l10n_main' )
    runs-on: ubuntu-latest
    outputs:
      code_changed: ${{ steps.filter.outputs.code }}
    steps:
      - uses: actions/checkout@v6
      - uses: dorny/paths-filter@v3
        id: filter
        with:
          filters: |
            code:
              - '**/*.kt'
              - '**/*.java'
              - '**/*.xml'
              - '**/*.kts'
              - '**/*.properties'
              - 'gradle/**'
              - 'gradlew'
              - 'gradlew.bat'
              - '**/src/**'
              - '.github/workflows/**'

  lint:
    needs: check-changes
    if: needs.check-changes.outputs.code_changed == 'true'
    uses: ./.github/workflows/reusable-lint.yml
    secrets:
      GRADLE_ENCRYPTION_KEY: ${{ secrets.GRADLE_ENCRYPTION_KEY }}

  build:
    needs: lint
    if: ${{ !cancelled() && !failure() }}
    uses: ./.github/workflows/reusable-android-build.yml
    secrets: inherit

  androidTest:
    needs: lint
    if: ${{ !cancelled() && !failure() }}
    uses: ./.github/workflows/reusable-android-test.yml
    with:
      api_levels: '[35]' # Run only on API 35 for PRs
      test_flavors: 'google' # Run only Google flavor for PRs (faster)
    secrets:
      GRADLE_ENCRYPTION_KEY: ${{ secrets.GRADLE_ENCRYPTION_KEY }}
      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

  # This job handles the case when no code changes are detected (docs-only PRs)
  skip-notice:
    needs: check-changes
    if: needs.check-changes.outputs.code_changed != 'true'
    runs-on: ubuntu-latest
    steps:
      - name: Skip CI for non-code changes
        run: echo "Skipping CI - no code changes detected (docs/config only)"

  check-workflow-status:
    name: Check Workflow Status
    runs-on: ubuntu-latest
    needs:
      - check-changes
      - lint
      - build
      - androidTest
    if: always()
    steps:
      - name: Check Workflow Status
        run: |
          # If no code changed, all jobs are expected to be skipped - that's success
          if [[ "${{ needs.check-changes.outputs.code_changed }}" != "true" ]]; then
            echo "No code changes - CI jobs skipped as expected"
            exit 0
          fi

          # Code changed - check that all jobs succeeded
          check_result() {
            local job_name=$1
            local result=$2
            if [[ "$result" == "failure" ]]; then
              echo "::error::Job '$job_name' failed"
              exit 1
            elif [[ "$result" == "cancelled" ]]; then
              echo "::error::Job '$job_name' was cancelled"
              exit 1
            fi
          }

          check_result "lint" "${{ needs.lint.result }}"
          check_result "build" "${{ needs.build.result }}"
          check_result "androidTest" "${{ needs.androidTest.result }}"

          echo "All jobs passed successfully"