name: UncivBot

on: [issue_comment]

jobs:
  comment:
    if: github.event.comment.body == 'summary'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v3
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            var result = await github.repos.listCommits({
              owner: context.repo.owner,
              repo: context.repo.repo,
              per_page: 50 });
            var commitSummary = "";
            var ownerToCommits = {}
            var reachedPreviousVersion = false
            result.data.forEach(commit => {
              if (reachedPreviousVersion) return
              var author = commit.author.login
              if (author=="uncivbot[bot]") return
              var commitMessage = commit.commit.message.split("\n")[0];
          
              if (commitMessage.match(/^\d+\.\d+\.\d+$/)){ // match EXACT version, like 3.4.55  ^ is for start-of-line, $ for end-of-line
                reachedPreviousVersion=true
                console.log(commitMessage)
                return
              }
              if(commitMessage.startsWith("Merge ")) return
              commitMessage = commitMessage.replace(/\(\#\d+\)/,"") // match PR auto-text, like (#2345)
              if (author != context.repo.owner){
                if (ownerToCommits[author]==undefined) ownerToCommits[author]=[]
                ownerToCommits[author].push(commitMessage)
              }
              else commitSummary += "\n\n" + commitMessage
            });
            Object.entries(ownerToCommits).forEach(entry => {
              const [commits,author] = entry;
              if (commits.length==1) commitSummary += "\n\n" + commitMessage+" By "+author
              else {
                commitSummary += "\n\nBy "+author+":"
                console.log(JSON.stringify(commits))
                commits.forEach(commitMessage => {commitSummary+="\n- "+commitMessage})
              }
            })
            github.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: commitSummary
            })