name: PRFAQ

# only trigger on pull request closed events
on:
  pull_request:
    types: [closed]
env:
  PR_NUMBER: ${{ github.event.pull_request.number }}

jobs:
  get_pr_stats:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
      - name: GitHub GraphQL Action
        uses: helaili/github-graphql-action@2.0.1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          query: queries/pr_stats.yaml
          logLevel: debug
          outputFile: pr_stats.json
          pr_num: ${{ env.PR_NUMBER }}
      - name: Set env variables
        uses: jannekem/run-python-script-action@v1
        with:
          script: |
            import json
            import datetime

            with open("pr_stats.json", "r") as pr_file:
                pr_stats = json.load(pr_file)

                # Get Time Open
                created_at = pr_stats["data"]["repository"]["pullRequest"]["createdAt"]
                merged_at = pr_stats["data"]["repository"]["pullRequest"]["closedAt"]

                created_at_timesamp = datetime.datetime.strptime(created_at, "%Y-%m-%dT%H:%M:%SZ")
                merged_at_timestamp = datetime.datetime.strptime(merged_at, "%Y-%m-%dT%H:%M:%SZ")
                timestamp_diff = merged_at_timestamp - created_at_timesamp

                days, seconds = timestamp_diff.days, timestamp_diff.seconds
                hours = days * 24 + seconds // 3600
                minutes = (seconds % 3600) // 60
                seconds = seconds % 60

                timestamp_open = f" {days} days, {hours} hours, {minutes} minutes, {seconds} seconds"
                print(timestamp_open)
                set_env("PR_OPEN", timestamp_open)

                # Get participants
                participants = pr_stats["data"]["repository"]["pullRequest"]["participants"][
                    "edges"
                ]
                participants_string = ""
                for participant in participants:
                    participants_string += participant["node"]["login"] + "  "

                print(participants_string)
                set_env("PR_USERS", participants_string)

                # Lines of code changed
                additions = pr_stats["data"]["repository"]["pullRequest"]["additions"]
                deletions = pr_stats["data"]["repository"]["pullRequest"]["deletions"]
                content_changed = f"+{additions} -{deletions} lines of code"
                print(content_changed)
                set_env("PR_LOC", content_changed)

                # Files that changed
                files = pr_stats["data"]["repository"]["pullRequest"]["files"]["edges"]
                files_string = ""
                for file_path in files:
                    files_string += file_path["node"]["path"] + "  "
                print(files_string)
                set_env("PR_FILES", files_string)
      - name: Render template
        id: template
        uses: chuhlomin/render-template@v1.2
        with:
          template: templates/prfaq-template.md
          vars: |
            pr_open: ${{ env.PR_OPEN }}
            pr_users: ${{ env.PR_USERS }}
            pr_loc: ${{ env.PR_LOC }}
            pr_files: ${{ env.PR_FILES }}
      - name: Create comment
        uses: peter-evans/create-or-update-comment@v1
        with:
          issue-number: ${{ env.PR_NUMBER }}
          body: ${{ steps.template.outputs.result }}