name: CI

env:
  IMAGE_NAME: tubesync

on:
  workflow_dispatch:
  push:
    branches:
      - 'main'
      - 'test-*'
  pull_request:
    branches:
      - 'main'
    types:
      - opened
      - reopened
      - synchronize
      - ready_for_review

jobs:
  info:
    if: ${{ !cancelled() && 'pull_request' != github.event_name }}
    runs-on: ubuntu-latest
    outputs:
      ffmpeg-date: ${{ steps.jq.outputs.FFMPEG_DATE }}
      ffmpeg-releases: ${{ steps.ffmpeg.outputs.releases }}
      ffmpeg-version: ${{ steps.jq.outputs.FFMPEG_VERSION }}
      lowercase-github-actor: ${{ steps.github-actor.outputs.lowercase }}
      lowercase-github-repository_owner: ${{ steps.github-repository_owner.outputs.lowercase }}
      ytdlp-latest-release: ${{ steps.yt-dlp.outputs.latest-release }}
      ytdlp-releases: ${{ steps.yt-dlp.outputs.releases }}
    steps:
      - uses: actions/checkout@v4
      - name: Lowercase github username
        id: github-actor
        uses: ./.github/actions/string-case
        with:
          string: ${{ github.actor }}
      - name: Lowercase github repository owner
        id: github-repository_owner
        uses: ./.github/actions/string-case
        with:
          string: ${{ github.repository_owner }}
      - name: Retrieve yt-dlp/FFmpeg-Builds releases with GitHub CLI
        id: ffmpeg
        uses: ./.github/actions/FFmpeg
      - name: Retrieve yt-dlp/yt-dlp releases with GitHub CLI
        id: yt-dlp
        uses: ./.github/actions/yt-dlp
      - name: Set outputs with jq
        id: jq
        run: |
          cat >| .ffmpeg.releases.json <<'EOF'
          ${{ steps.ffmpeg.outputs.releases }}
          EOF
          mk_delim() { local f='%s_EOF_%d_' ; printf -- "${f}" "$1" "${RANDOM}" ; } ;
          open_ml_var() { local f=''\%'s<<'\%'s\n' ; printf -- "${f}" "$2" "$1" ; } ;
          close_ml_var() { local f='%s\n' ; printf -- "${f}" "$1" ; } ;
          {
            var='FFMPEG_DATE' ;
            delim="$(mk_delim "${var}")" ;
            open_ml_var "${delim}" "${var}" ;
            jq_arg='[foreach .[] as $release ([{}, []]; [ .[0] + {($release.commit): ([ $release.date ] + (.[0][($release.commit)] // []) ) }, [ .[1][0] // $release.commit ] ] ; .[0][(.[1][0])] ) ][-1][0]' ;
            jq -r "${jq_arg}" -- .ffmpeg.releases.json ;
            close_ml_var "${delim}" "${var}" ;

            ffmpeg_date="$( jq -r "${jq_arg}" -- .ffmpeg.releases.json )"
            
            var='FFMPEG_VERSION' ;
            delim="$(mk_delim "${var}")" ;
            open_ml_var "${delim}" "${var}" ;
            jq_arg='.[]|select(.date == $date)|.versions[]|select(startswith("N-"))' ;
            jq -r --arg date "${ffmpeg_date}" "${jq_arg}" -- .ffmpeg.releases.json ;
            close_ml_var "${delim}" "${var}" ;
            unset -v delim jq_arg var ;
          } >> "${GITHUB_OUTPUT}"
          cat -v "${GITHUB_OUTPUT}"
          rm -v -f .ffmpeg.releases.json

  test:
    if: ${{ !cancelled() && ( 'pull_request' != github.event_name || (! github.event.pull_request.draft) ) }}
    runs-on: ubuntu-22.04
    strategy:
      fail-fast: false
      matrix:
        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
    steps:
      - uses: actions/checkout@v4
      - name: Install Python ${{ matrix.python-version }}
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install pipenv
          PIPENV_VERBOSITY=64 pipenv install --system --skip-lock
      - name: Set up Django environment
        run: |
          cp -v -p tubesync/tubesync/local_settings.py.example tubesync/tubesync/local_settings.py
          cp -v -a -t "${Python3_ROOT_DIR}"/lib/python3.*/site-packages/background_task/ patches/background_task/*
          cp -v -a -t "${Python3_ROOT_DIR}"/lib/python3.*/site-packages/yt_dlp/ patches/yt_dlp/*
      - name: Run Django tests
        run: cd tubesync && python3 manage.py test --verbosity=2

  containerise:
    if: ${{ !cancelled() && 'success' == needs.info.result }}
    needs: ['info', 'test']
    runs-on: ubuntu-latest
    timeout-minutes: 120
    steps:
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3
      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v3
      - name: Log into GitHub Container Registry
        env:
          DOCKER_REGISTRY: https://ghcr.io
          DOCKER_USERNAME: ${{ github.actor }}
          DOCKER_TOKEN: ${{ 'meeb' == github.repository_owner && secrets.REGISTRY_ACCESS_TOKEN || secrets.GITHUB_TOKEN }}
        run: echo "${DOCKER_TOKEN}" | docker login --password-stdin --username "${DOCKER_USERNAME}" "${DOCKER_REGISTRY}"
      - name: Build image for `dive`
        id: build-dive-image
        uses: docker/build-push-action@v6
        with:
          build-args: |
            IMAGE_NAME=${{ env.IMAGE_NAME }}
            FFMPEG_DATE=${{ needs.info.outputs.ffmpeg-date }}
            FFMPEG_VERSION=${{ needs.info.outputs.ffmpeg-version }}
            YTDLP_DATE=${{ fromJSON(needs.info.outputs.ytdlp-latest-release).tag.name }}
          cache-from: type=gha
          load: true
          platforms: linux/amd64
          push: false
          tags: ghcr.io/${{ needs.info.outputs.lowercase-github-actor }}/${{ env.IMAGE_NAME }}:dive
      - name: Analysis with `dive`
        continue-on-error: false
        run: |
          docker run --rm \
            -v /var/run/docker.sock:/var/run/docker.sock \
            'ghcr.io/wagoodman/dive' \
            'ghcr.io/${{ needs.info.outputs.lowercase-github-actor }}/${{ env.IMAGE_NAME }}:dive' \
            --ci \
            --highestUserWastedPercent '0.05' \
            --highestWastedBytes '50M'
      - name: Build and push
        id: build-push
        timeout-minutes: 60
        uses: docker/build-push-action@v6
        with:
          platforms: linux/amd64,linux/arm64
          push: ${{ 'success' == needs.test.result && 'meeb' == github.repository_owner && 'pull_request' != github.event_name && 'true' || 'false' }}
          tags: ghcr.io/${{ needs.info.outputs.lowercase-github-actor }}/${{ env.IMAGE_NAME }}:latest
          cache-from: |
            type=registry,ref=ghcr.io/${{ needs.info.outputs.lowercase-github-actor }}/${{ env.IMAGE_NAME }}:latest
            type=registry,ref=ghcr.io/${{ needs.info.outputs.lowercase-github-repository_owner }}/${{ env.IMAGE_NAME }}:latest
            type=gha
          cache-to: |
            type=gha,mode=max
            ${{ 'meeb' == github.repository_owner && 'pull_request' != github.event_name && 'type=inline' || '' }}
          build-args: |
            IMAGE_NAME=${{ env.IMAGE_NAME }}
            FFMPEG_DATE=${{ needs.info.outputs.ffmpeg-date }}
            FFMPEG_VERSION=${{ needs.info.outputs.ffmpeg-version }}
            YTDLP_DATE=${{ fromJSON(needs.info.outputs.ytdlp-latest-release).tag.name }}