name: CLA Assistant

on:
  issue_comment:
    types: [created]
  pull_request_target:
    types: [opened, synchronize]

permissions:
  actions: write
  contents: write
  pull-requests: write
  statuses: write

jobs:
  cla:
    runs-on: ubuntu-latest
    steps:
      - name: Check stored CLA signatures
        id: cla_state
        if: github.event_name == 'pull_request_target'
        uses: actions/github-script@v7
        with:
          script: |
            const signaturePath = "signatures/cla.json";
            const signatureBranch = "dev";
            const allowlist = [
              "code-yeongyu",
              "bot*",
              "dependabot*",
              "github-actions*",
              "*[bot]",
              "sisyphus-dev-ai",
              "web-flow",
            ];

            const matchesAllowlist = (login) => {
              const normalizedLogin = login.toLowerCase();

              return allowlist.some((entry) => {
                const pattern = entry.toLowerCase();

                if (pattern.startsWith("*")) {
                  return normalizedLogin.endsWith(pattern.slice(1));
                }

                if (pattern.endsWith("*")) {
                  return normalizedLogin.startsWith(pattern.slice(0, -1));
                }

                return normalizedLogin === pattern;
              });
            };

            const { owner, repo } = context.repo;
            const pullNumber = context.payload.pull_request.number;

            const [signatureFile, commits] = await Promise.all([
              github.rest.repos.getContent({
                owner,
                repo,
                path: signaturePath,
                ref: signatureBranch,
              }),
              github.paginate(github.rest.pulls.listCommits, {
                owner,
                repo,
                pull_number: pullNumber,
                per_page: 100,
              }),
            ]);

            if (Array.isArray(signatureFile.data) || signatureFile.data.type !== "file") {
              core.setFailed(`${signaturePath} is not a file on ${signatureBranch}`);
              return;
            }

            const signatureContent = Buffer.from(
              signatureFile.data.content,
              signatureFile.data.encoding,
            ).toString("utf8");
            const signatures = JSON.parse(signatureContent);
            const signedContributors = Array.isArray(signatures.signedContributors)
              ? signatures.signedContributors
              : [];
            const signedIds = new Set(
              signedContributors
                .map((contributor) => Number(contributor.id))
                .filter((id) => Number.isFinite(id)),
            );
            const signedNames = new Set(
              signedContributors
                .map((contributor) => String(contributor.name || "").toLowerCase())
                .filter(Boolean),
            );
            const contributors = new Map();

            for (const commit of commits) {
              if (commit.author?.login && commit.author?.id) {
                contributors.set(commit.author.login, {
                  id: commit.author.id,
                  login: commit.author.login,
                });
              }
            }

            const unsigned = [...contributors.values()].filter((contributor) => {
              const login = contributor.login.toLowerCase();

              return (
                !matchesAllowlist(contributor.login) &&
                !signedIds.has(contributor.id) &&
                !signedNames.has(login)
              );
            });

            core.setOutput("needs_cla_action", unsigned.length > 0 ? "true" : "false");

            if (unsigned.length > 0) {
              core.info(
                `CLA Assistant needed for unsigned contributors: ${unsigned
                  .map((contributor) => contributor.login)
                  .join(", ")}`,
              );
            } else {
              core.info("All linked commit authors already signed the CLA or are allowlisted.");
            }

      - name: CLA Assistant
        if: >-
          (github.event_name == 'issue_comment' &&
            (github.event.comment.body == 'recheck' ||
              github.event.comment.body == 'I have read the CLA Document and I hereby sign the CLA')) ||
          steps.cla_state.outputs.needs_cla_action == 'true'
        uses: contributor-assistant/github-action@v2.6.1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          path-to-signatures: 'signatures/cla.json'
          path-to-document: 'https://github.com/code-yeongyu/oh-my-openagent/blob/dev/CLA.md'
          branch: 'dev'
          allowlist: code-yeongyu,bot*,dependabot*,github-actions*,*[bot],sisyphus-dev-ai,web-flow
          custom-notsigned-prcomment: |
            Thank you for your contribution! Before we can merge this PR, we need you to sign our [Contributor License Agreement (CLA)](https://github.com/code-yeongyu/oh-my-opencode/blob/master/CLA.md).
            
            **To sign the CLA**, please comment on this PR with:
            ```
            I have read the CLA Document and I hereby sign the CLA
            ```
            
            This is a one-time requirement. Once signed, all your future contributions will be automatically accepted.
          custom-pr-sign-comment: 'I have read the CLA Document and I hereby sign the CLA'
          custom-allsigned-prcomment: |
            All contributors have signed the CLA. Thank you! ✅
          lock-pullrequest-aftermerge: false