name: Refresh
on:
  schedule:
    - cron: '0 0 * * 0'
  push:
    branches:
      - 'automation'
      - 'automation-test'

jobs:
  update:
    runs-on: ubuntu-latest
    name: "Update Mirror"
    steps:
    - uses: actions/checkout@v2
      name: "Checkout"
    - name: "Configure"
      shell: bash
      run: |
        git config --global user.name 'GitHub Actions'
        git config --global user.email 'xaymar@users.noreply.github.com'
        git config pull.ff only
        git config pull.rebase true
    - name: "Remotes"
      shell: bash
      run: |
        git remote set-url origin https://x-access-token:${{ secrets.GITHUB_TOKEN }}@github.com/${{ github.repository }}
        git remote add -f --tags remote https://git.ffmpeg.org/ffmpeg.git
        git fetch --all
    - name: "Synchronize with Remote and trigger Builds"
      if: ${{ github.event_name == 'schedule' }}
      shell: bash
      run: |
        declare -a BRANCHES
        BRANCHES[${#BRANCHES[@]}]="master"
        BRANCHES[${#BRANCHES[@]}]="release/4.4"
        BRANCHES[${#BRANCHES[@]}]="release/4.3"
        BRANCHES[${#BRANCHES[@]}]="release/4.2"
        BRANCHES[${#BRANCHES[@]}]="release/4.1"
        BRANCHES[${#BRANCHES[@]}]="release/4.0"
        BRANCHES[${#BRANCHES[@]}]="release/3.4"
        BRANCHES[${#BRANCHES[@]}]="release/3.3"
        BRANCHES[${#BRANCHES[@]}]="release/3.2"
        BRANCHES[${#BRANCHES[@]}]="release/3.1"
        BRANCHES[${#BRANCHES[@]}]="release/3.0"
        BRANCHES[${#BRANCHES[@]}]="release/2.8"
        BRANCHES[${#BRANCHES[@]}]="release/2.7"
        BRANCHES[${#BRANCHES[@]}]="release/2.6"
        BRANCHES[${#BRANCHES[@]}]="release/2.5"
        BRANCHES[${#BRANCHES[@]}]="release/2.4"
        BRANCHES[${#BRANCHES[@]}]="release/2.3"
        BRANCHES[${#BRANCHES[@]}]="release/2.2"
        BRANCHES[${#BRANCHES[@]}]="release/2.1"
        BRANCHES[${#BRANCHES[@]}]="release/2.0"
        BRANCHES[${#BRANCHES[@]}]="release/1.2"
        BRANCHES[${#BRANCHES[@]}]="release/1.1"
        BRANCHES[${#BRANCHES[@]}]="release/1.0"
        BRANCHES[${#BRANCHES[@]}]="release/0.11"
        BRANCHES[${#BRANCHES[@]}]="release/0.10"
        BRANCHES[${#BRANCHES[@]}]="release/0.9"
        BRANCHES[${#BRANCHES[@]}]="release/0.8"
        BRANCHES[${#BRANCHES[@]}]="release/0.7"
        BRANCHES[${#BRANCHES[@]}]="release/0.6"
        BRANCHES[${#BRANCHES[@]}]="release/0.5"
        BRANCHES[${#BRANCHES[@]}]="oldabi"

        echo "Testing branches for differences..."
        for d in ${BRANCHES[@]}; do
          BRANCH_REQUIRES_UPDATE=false
          if ! git branch -a | grep origin/${d}; then
            echo "  '${d}' is missing, creating..."
            git checkout -b ${d} remote/${d}
            BRANCH_REQUIRES_UPDATE=true
          elif ! git diff -s --exit-code origin/${d} remote/${d}; then
            echo "  '${d}' is out of date, updating..."
            git checkout -b ${d} origin/${d}
            BRANCH_REQUIRES_UPDATE=true
          fi
          if ${BRANCH_REQUIRES_UPDATE}; then
            git push --follow-tags --set-upstream origin ${d}
            curl \
              -X POST \
              -H "Authorization: token ${{ secrets.WORKFLOW_TOKEN }}" \
              -H "Accept: application/vnd.github.v3+json" \
              -d "{\"ref\":\"${{ github.ref }}\",\"inputs\":{\"ref\":\"${d}\"}}" \
              "https://api.github.com/repos/${{ github.repository }}/actions/workflows/build.yml/dispatches"
          fi
        done
    - name: "Only trigger build on manual push"
      if: ${{ github.event_name == 'push' }}
      shell: bash
      run: |
        declare -a BRANCHES
        BRANCHES[${#BRANCHES[@]}]="master"
        BRANCHES[${#BRANCHES[@]}]="release/4.4"
        BRANCHES[${#BRANCHES[@]}]="release/3.4"

        for d in ${BRANCHES[@]}; do
          curl \
            -X POST \
            -H "Authorization: token ${{ secrets.WORKFLOW_TOKEN }}" \
            -H "Accept: application/vnd.github.v3+json" \
            -d "{\"ref\":\"${{ github.ref }}\",\"inputs\":{\"ref\":\"${d}\"}}" \
            "https://api.github.com/repos/${{ github.repository }}/actions/workflows/build.yml/dispatches"
        done