name: Release APKs
run-name: release ${{ inputs.version }} from main ${{ github.sha }}

on:
  workflow_dispatch:
    inputs:
      version:
        description: Version for the file names, e.g. 0.1.7
        required: true

permissions:
  contents: read
  actions: read

concurrency:
  group: release
  cancel-in-progress: false

jobs:
  find:
    name: find the main build
    if: github.ref == 'refs/heads/main'
    runs-on: ubuntu-24.04
    outputs:
      run_id: ${{ steps.find.outputs.run_id }}
      variants: ${{ steps.find.outputs.variants }}
    steps:
      - uses: actions/checkout@v4
        with:
          persist-credentials: false
      - id: find
        env:
          GH_TOKEN: ${{ github.token }}
          VERSION: ${{ inputs.version }}
        run: |
          set -euo pipefail
          [[ $VERSION =~ ^[0-9A-Za-z._-]+$ ]] || { echo "::error::version '$VERSION': letters, digits, . _ - only"; exit 1; }
          name=$(sed -n 's/^ *versionName "\(.*\)"$/\1/p' app/build.gradle)
          [[ $VERSION == "$name" || $VERSION == "$name"-* ]] || {
            echo "::error::version '$VERSION' does not match versionName '$name' in app/build.gradle: bump versionName and versionCode first"; exit 1;
          }
          runs=$(gh run list -R "$GITHUB_REPOSITORY" --workflow build.yml --branch main --commit "$GITHUB_SHA" \
                   --status success --json databaseId,event,headSha -L 20)
          id=$(jq -r --arg sha "$GITHUB_SHA" \
                 '[.[] | select(.headSha == $sha and (.event == "push" or .event == "workflow_dispatch"))][0].databaseId // empty' <<<"$runs")
          if [ -z "$id" ]; then
            echo "::error::main ${GITHUB_SHA::7} has no successful Build APK run yet: wait for it, then release"
            exit 1
          fi
          variants=$(awk '!/^#/ && NF { print $1 }' tools/release/variants.txt | jq -R . | jq -sc .)
          echo "run_id=$id" >> "$GITHUB_OUTPUT"
          echo "variants=$variants" >> "$GITHUB_OUTPUT"
          echo "Signing Build APK run $id (main ${GITHUB_SHA::7}) as $VERSION: $variants" >> "$GITHUB_STEP_SUMMARY"

  sign:
    needs: find
    uses: ./.github/workflows/sign.yml
    with:
      environment: release
      variants: ${{ needs.find.outputs.variants }}
      run_id: ${{ needs.find.outputs.run_id }}
      label: ${{ inputs.version }}
      artifact: droiddeck-release
    secrets: inherit

  publish:
    name: publish the release
    needs: [find, sign]
    runs-on: ubuntu-24.04
    timeout-minutes: 10
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          persist-credentials: false

      - uses: actions/download-artifact@v4
        with:
          pattern: droiddeck-release-*
          merge-multiple: true
          path: out

      - name: Publish
        env:
          GH_TOKEN: ${{ github.token }}
          VERSION: ${{ inputs.version }}
          BUILD_RUN: ${{ needs.find.outputs.run_id }}
        run: |
          set -euo pipefail
          notes="docs/releases/$VERSION.md"
          [ -f "$notes" ] || { echo "::error::$notes is missing: add the release notes first"; exit 1; }
          if gh release view "$VERSION" -R "$GITHUB_REPOSITORY" >/dev/null 2>&1; then
            echo "::error::release $VERSION already exists"; exit 1
          fi
          title=$(sed -n '1s/^# *//p' "$notes")
          [ -n "$title" ] || title="DroidDeck $VERSION"
          raw="https://raw.githubusercontent.com/$GITHUB_REPOSITORY/$VERSION/docs/releases/media/"
          {
            sed '1{/^# /d;}' "$notes" | sed -E "s#(\]\(|src=\")media/#\1$raw#g"
            echo
            echo "---"
            echo
            echo "Built by [Build APK run $BUILD_RUN]($GITHUB_SERVER_URL/$GITHUB_REPOSITORY/actions/runs/$BUILD_RUN) from \`$GITHUB_SHA\`, signed and published by [Release APKs run $GITHUB_RUN_ID]($GITHUB_SERVER_URL/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID)."
          } > "$RUNNER_TEMP/body.md"
          ( cd out && cat SHA256SUMS-*.txt | sort -k2 > SHA256SUMS.txt && rm SHA256SUMS-*.txt && cat SHA256SUMS.txt )
          gh release create "$VERSION" -R "$GITHUB_REPOSITORY" out/*.apk out/SHA256SUMS.txt \
            --target "$GITHUB_SHA" --title "$title" --notes-file "$RUNNER_TEMP/body.md" --latest
          echo "Published [$title]($GITHUB_SERVER_URL/$GITHUB_REPOSITORY/releases/tag/$VERSION)" >> "$GITHUB_STEP_SUMMARY"

  catalog:
    needs: publish
    uses: ./.github/workflows/update-catalog.yml
    permissions:
      contents: read
      pull-requests: read
    secrets: inherit