#/
# @license Apache-2.0
#
# Copyright (c) 2024 The Stdlib Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#/

# Workflow name:
name: lint_autofix

# Workflow triggers:
on:

  # Allow the workflow to be triggered by other workflows
  workflow_call:
    # Define the input parameters for the workflow:
    inputs:
      pull_request_number:
        description: 'PR number'
        required: true
        type: number

    # Define the secrets accessible by the workflow:
    secrets:
      STDLIB_BOT_GITHUB_TOKEN:
        description: 'GitHub token for stdlib-bot'
        required: true
      STDLIB_BOT_GPG_PRIVATE_KEY:
        description: 'GPG private key for stdlib-bot'
        required: true
      STDLIB_BOT_GPG_PASSPHRASE:
        description: 'GPG passphrase for stdlib-bot'
        required: true

# Workflow jobs:
jobs:

  # Define a job for automatically fixing lint errors:
  autofix:

    # Define a display name:
    name: 'Fix lint errors'

    # Define the type of virtual host machine:
    runs-on: ubuntu-latest

    # Define the sequence of job steps...
    steps:

      # Get PR details:
      - name: 'Get PR details'
        id: pr-details
        run: |
          pr_response=$(curl -s \
            -H "Accept: application/vnd.github.v3+json" \
            -H "Authorization: Bearer ${{ secrets.STDLIB_BOT_GITHUB_TOKEN }}" \
            "https://api.github.com/repos/stdlib-js/stdlib/pulls/${{ inputs.pull_request_number }}")

          # Escape control characters:
          pr_response=$(echo "$pr_response" | tr -d '\000-\031')

          # Extract the needed details:
          pr_branch=$(echo "$pr_response" | jq -r '.head.ref') # PR's branch
          pr_repo_full_name=$(echo "$pr_response" | jq -r '.head.repo.full_name') # PR's repo full name

          # Set outputs for the branch and repository:
          echo "branch=$pr_branch" >> $GITHUB_OUTPUT
          echo "repository=$pr_repo_full_name" >> $GITHUB_OUTPUT

      # Checkout the repository:
      - name: 'Checkout repository'
        # Pin action to full length commit SHA
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          # Refers to the branch name of the branch being pushed:
          ref: ${{ steps.pr-details.outputs.branch }}

          # Refers to the repository name:
          repository: ${{ steps.pr-details.outputs.repository }}

          # Token for accessing the repository:
          token: ${{ secrets.STDLIB_BOT_GITHUB_TOKEN }}

          # File path to checkout to:
          path: './'

      # Install Node.js:
      - name: 'Install Node.js'
        # Pin action to full length commit SHA
        uses: actions/setup-node@6044e13b5dc448c55e2357c09f80417699197238 # v6.2.0
        with:
          node-version: '20' # 'lts/*'
        timeout-minutes: 5

      # Install dependencies (accounting for possible network failures, etc, when installing node module dependencies):
      - name: 'Install dependencies'
        run: |
          make install-node-modules || make install-node-modules || make install-node-modules
        timeout-minutes: 15

      # Initialize development environment:
      - name: 'Initialize development environment'
        run: |
          make init
        timeout-minutes: 5

      # Get list of changed files:
      - name: 'Get list of changed files'
        id: changed-files
        run: |
          page=1
          files=""
          while true; do
              changed_files=$(curl -s -H "Accept: application/vnd.github.v3+json" -H "Authorization: Bearer ${{ secrets.STDLIB_BOT_GITHUB_TOKEN
                  }}" "https://api.github.com/repos/stdlib-js/stdlib/pulls/${{ inputs.pull_request_number }}/files?page=$page&per_page=100" | jq -r '.[] | .filename')
              if [ -z "$changed_files" ]; then
                  break
              fi
              files="$files $changed_files"
              page=$((page+1))
          done
          files=$(echo "$files" | tr '\n' ' ' | sed 's/^ //;s/ $//')
          echo "files=${files}" >> $GITHUB_OUTPUT

      # Fix JavaScript lint errors:
      - name: 'Fix JavaScript lint errors'
        id: fix-lint-errors
        run: |
          files="${{ steps.changed-files.outputs.files }}"
          FIX=1 . "$GITHUB_WORKSPACE/.github/workflows/scripts/common/lint_javascript_files" "$files" || true

      # Add missing trailing newlines:
      - name: 'Add missing trailing newlines'
        id: add-trailing-newlines
        run: |
          files="${{ steps.changed-files.outputs.files }}"
          . "$GITHUB_WORKSPACE/.github/workflows/scripts/lint_autofix/add_trailing_newlines" "$files"

      # Remove related packages from README.md files:
      - name: 'Remove related packages from README.md files'
        run: |
          files="${{ steps.changed-files.outputs.files }}"
          . "$GITHUB_WORKSPACE/.github/workflows/scripts/lint_autofix/remove_related_packages" "$files"

      # Disable Git hooks:
      - name: 'Disable Git hooks'
        run: |
          rm -rf .git/hooks

      # Import GPG key to sign commits:
      - name: 'Import GPG key to sign commits'
        # Pin action to full length commit SHA
        uses: crazy-max/ghaction-import-gpg@e89d40939c28e39f97cf32126055eeae86ba74ec # v6.3.0
        with:
          gpg_private_key: ${{ secrets.STDLIB_BOT_GPG_PRIVATE_KEY }}
          passphrase: ${{ secrets.STDLIB_BOT_GPG_PASSPHRASE }}
          git_user_signingkey: true
          git_commit_gpgsign: true

      # Commit and push changes:
      - name: 'Commit and push changes'
        env:
            REPO_GITHUB_TOKEN: ${{ secrets.STDLIB_BOT_GITHUB_TOKEN }}
            USER_NAME: stdlib-bot
            BRANCH_NAME: ${{ steps.pr-details.outputs.branch }}
            REPO_NAME: ${{ steps.pr-details.outputs.repository }}
        run: |
          git config --local user.email "82920195+stdlib-bot@users.noreply.github.com"
          git config --local user.name "$USER_NAME"
          git add .
          git commit -m "fix: resolve lint errors"
          git push "https://$USER_NAME:$REPO_GITHUB_TOKEN@github.com/$REPO_NAME.git" $BRANCH_NAME