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:
  GIT_EMAIL: "91348155+FrogAi@users.noreply.github.com"
  GIT_NAME: "James"
  TARGET_BRANCH: "FrogPilot-Staging"
  UPDATE_FILE_PATH: ".github/update_date"

jobs:
  schedule_update:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Target Branch
        uses: actions/checkout@v4
        with:
          ref: ${{ env.TARGET_BRANCH }}
          token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
          fetch-depth: 3

      - name: Configure Git Identity
        run: |
          git config --global user.name "$GIT_NAME"
          git config --global user.email "$GIT_EMAIL"

      - name: Write Schedule Date
        env:
          SCHEDULED_DATE: ${{ github.event.inputs.scheduled_date }}
        run: |
          echo "$SCHEDULED_DATE" > "$UPDATE_FILE_PATH"
          git add "$UPDATE_FILE_PATH"

      - name: Get Target Commit Data
        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
        id: fixup_commit
        run: |
          if git diff --cached --quiet; then
            echo "No changes detected."
            echo "has_changes=false" >> "$GITHUB_OUTPUT"
          else
            echo "Changes detected. Creating fixup commit."
            git commit --fixup="$TARGET_COMMIT"
            echo "has_changes=true" >> "$GITHUB_OUTPUT"
          fi

      - name: Autosquash and Restore Timestamps
        if: steps.fixup_commit.outputs.has_changes == 'true'
        run: |
          GIT_SEQUENCE_EDITOR=: git rebase --autosquash -i HEAD~3
          git rebase --exec "GIT_COMMITTER_DATE='$COMMITTER_DATE' git commit --amend --no-edit --date='$AUTHOR_DATE'" HEAD~2

      - name: Push Changes
        if: steps.fixup_commit.outputs.has_changes == 'true'
        run: |
          git push origin "$TARGET_BRANCH" --force-with-lease