name: UncivBot

on: [issue_comment]

jobs:
  summary:
    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 ") || commitMessage.startsWith("Update ")) 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 [author, commits] = entry;
              if (commits.length==1) commitSummary += "\n\n" + commits[0] + " - By "+author
              else {
                commitSummary += "\n\nBy "+author+":"
                commits.forEach(commitMessage => { commitSummary += "\n- "+commitMessage })
              }
            })
            github.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: commitSummary
            })

  merge_translations:
    if: github.event.comment.body == 'merge translations'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/github-script@v3
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            async function branchExists(branchName) {
              try {
                await github.git.getRef({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  ref: 'heads/' + branchName })
                return true
              } catch (err) {
                return false
              }
            }

            async function getDefaultBranch() {
              var repo = await github.repos.get({owner: context.repo.owner, repo: context.repo.repo})
              return repo.data.default_branch
            }
            
            var translations = "translations"

            async function createTranslationBranchIfNeeded() {
              if (await branchExists(translations)) return
              var defaultBranch = await getDefaultBranch()
              var currentHead = await context.github.git.getRef({
                owner: context.repo.owner, 
                repo: context.repo.repo, 
                ref: 'heads/' + defaultBranch })
              var currentSha = currentHead.data.object.sha
              app.log("Current sha: " + currentSha)
              await context.github.git.createRef({
                owner: context.repo.owner, 
                repo: context.repo.repo,
                ref: `refs/heads/`+translations,
                sha: currentSha })
              await context.github.issues.createComment({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                body: 'Translations branch created' })
            }
            
            await createTranslationBranchIfNeeded()
            
            //async function createTranslationPrIfNeeded(context: Context<Webhooks.WebhookPayloadIssueComment>,
            //  owner: string, translations: string) {
            //  var translationPulls = await context.github.pulls.list(context.repo({ state: "open", head: owner + ":" + translations }));
            //  if (translationPulls.data.length == 0) {
            //    var defaultBranch = await getDefaultBranch(context);
            //    await context.github.pulls.create(context.repo({ title: "Translations update", head: translations, base: defaultBranch }));
            //    await context.github.issues.createComment(context.issue({ body: 'Translations PR created' }));
            //  }
            //}