on:
  workflow_dispatch:
  push:
    branches:
      - main
  schedule:
    - cron: 0 16 * * *

jobs:
  fetch-from-images:
    runs-on: ubuntu-latest

    steps:
      - name: checkout
        uses: actions/checkout@v4.0.0

      - name: Check and fetch app
        run: |
          [ -e app/README.md ] && NOW=$(cat app/README.md)
          LATEST=$(sudo wget -qO- https://raw.githubusercontent.com/naiba/nezha/master/README.md | grep -oP '(?<=master&label=Dash%20)[^&]*')
          if [ "$NOW" != "$LATEST" ]; then
            ARCH=("x86_64" "aarch64")
            PLATFORM=("amd64" "arm64")
            [ ! -d app ] && mkdir -p app
            for ((i=0; i<${#ARCH[*]}; i++)); do
              unset DIR
              mkdir -p ${PLATFORM[i]}_dir
              [ -e app/app-${ARCH[i]} ] && sudo rm -f app/app-${ARCH[i]}
              TAG[i]=$(wget -qO- https://github.com/naiba/nezha/pkgs/container/nezha-dashboard | grep -A 5 "linux/${PLATFORM[i]}" | grep -oP '(?<=ghcr.io/naiba/nezha-dashboard:)[^"]*')
              sudo docker pull ghcr.io/naiba/nezha-dashboard:${TAG[i]}
              sudo docker save -o ${PLATFORM[i]}_dir/${PLATFORM[i]}.tar ghcr.io/naiba/nezha-dashboard:${TAG[i]}
              sudo tar xvf ${PLATFORM[i]}_dir/${PLATFORM[i]}.tar -C ${PLATFORM[i]}_dir/
              DIR=($(ls -d ${PLATFORM[i]}_dir/*/layer.tar))
              TAR_FILE[i]=$(for j in ${DIR[@]}; do tar -tf $j | grep -q 'dashboard/app' && echo $j && break; done)
              sudo tar xvf ${TAR_FILE[i]} -C ${PLATFORM[i]}_dir --strip-components=1 dashboard/app
              sudo mv ${PLATFORM[i]}_dir/app app/app-${ARCH[i]}
              sudo rm -rf ${PLATFORM[i]}_dir
              sudo md5sum app/app-${ARCH[i]}
            done

            ls app/app* | xargs md5sum
            DATE=$(date "+%Y/%m/%d")
            echo "$DATE" >> $GITHUB_ENV
            echo "VERSION=$LATEST" >> $GITHUB_ENV
          fi

      - name: Upload to repository
        uses: stefanzweifel/git-auto-commit-action@v4.16.0
        if: ${{ env.VERSION != '' }}
        with:
          commit_message: Sync app ${{ env.VERSION }} by Github Actions, ${{ env.DATE }}