name: Schedule FrogPilot Update

on:
  workflow_dispatch:
    inputs:
      scheduled_date:
        description: "Enter the date to update the \"FrogPilot\" branch (YYYY-MM-DD)"
        required: true

env:
  BRANCH: FrogPilot-Staging
  GITHUB_TOKEN: ${{ secrets.PERSONAL_ACCESS_TOKEN }}

jobs:
  schedule-update:
    runs-on: ubuntu-latest
    steps:
      - name: Configure Git Identity
        run: |
          git config --global user.name "James"
          git config --global user.email "91348155+FrogAi@users.noreply.github.com"

      - name: Checkout ${{ env.BRANCH }}
        uses: actions/checkout@v3
        with:
          persist-credentials: false
          ref: ${{ env.BRANCH }}
          fetch-depth: 3

      - name: Schedule Update for ${{ github.event.inputs.scheduled_date }}
        run: |
          echo "${{ github.event.inputs.scheduled_date }}" > .github/update_date
          git add .github/update_date

      - name: Get Target Commit (Second Most Recent)
        id: get_target
        run: |
          TARGET_COMMIT=$(git rev-parse HEAD~1)

          AUTHOR_DATE=$(git show -s --format=%aD "$TARGET_COMMIT")
          COMMITTER_DATE=$(git show -s --format=%cD "$TARGET_COMMIT")

          echo "AUTHOR_DATE=$AUTHOR_DATE" >> $GITHUB_ENV
          echo "COMMITTER_DATE=$COMMITTER_DATE" >> $GITHUB_ENV
          echo "TARGET_COMMIT=$TARGET_COMMIT" >> $GITHUB_ENV

      - name: Create Fixup Commit if Changes Exist
        id: fixup_commit
        run: |
          if git diff --cached --quiet; then
            echo "No changes to commit."
            echo "has_changes=false" >> "$GITHUB_OUTPUT"
          else
            echo "Changes found, creating fixup commit."
            git commit --fixup="${{ env.TARGET_COMMIT }}"
            echo "has_changes=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Autosquash Fixup into Target Commit
        if: steps.fixup_commit.outputs.has_changes == 'true'
        run: |
          GIT_SEQUENCE_EDITOR=: git rebase --autosquash -i HEAD~3

      - name: Restore Timestamps on Final Two Commits
        if: steps.fixup_commit.outputs.has_changes == 'true'
        run: |
          git rebase --exec "GIT_COMMITTER_DATE='${{ env.COMMITTER_DATE }}' git commit --amend --no-edit --date='${{ env.AUTHOR_DATE }}'" HEAD~2

      - name: Push Updated ${{ env.BRANCH }} Branch
        if: steps.fixup_commit.outputs.has_changes == 'true'
        run: |
          git remote set-url origin https://x-access-token:${GITHUB_TOKEN}@github.com/${{ github.repository }}
          git push origin "${{ env.BRANCH }}" --force-with-lease