module.exports = async ({
    github,
    context,
    core
}) => {
    const owner = context.repo.owner;
    const repo = context.repo.repo;

    // See: https://docs.github.com/en/rest/actions/workflows?apiVersion=2022-11-28#list-repository-workflows
    const workflows = await github.rest.actions.listRepoWorkflows({
        owner,
        repo
    })

    const workflow = workflows.data.workflows.find(w => w.path.includes(process.env.WORKFLOW_FILENAME));

    if (!workflow) {
        core.setFailed("No matching workflow found.");
        return;
    }

    // See: https://docs.github.com/en/rest/actions/workflow-runs?apiVersion=2022-11-28#list-workflow-runs-for-a-repository
    const runs = await github.rest.actions.listWorkflowRuns({
        owner,
        repo,
        workflow_id: workflow.id,
        status: "success",
        per_page: 1
    })

    if (runs.data.total_count === 0) {
        core.setFailed("No workflow runs found.");
        return;
    }

    // See: https://docs.github.com/en/rest/actions/artifacts?apiVersion=2022-11-28#list-workflow-run-artifacts
    const artifacts = await github.rest.actions.listWorkflowRunArtifacts({
        owner,
        repo,
        run_id: runs.data.workflow_runs[0].id
    });

    // Other formats are not supported by the GitHub API for downloading artifacts.
    const extension = "zip"
    const artifact = artifacts.data.artifacts.find(artifact => artifact.name === process.env.ARTIFACT_NAME);
    if (artifact) {
        // See: https://docs.github.com/en/rest/actions/artifacts?apiVersion=2022-11-28#download-an-artifact
        const response = await github.rest.actions.downloadArtifact({
            owner,
            repo,
            artifact_id: artifact.id,
            archive_format: extension
        });

        const artifactFilename = process.env.ARTIFACT_FILENAME || `${artifact.name}.${extension}`;
        require('fs').writeFileSync(artifactFilename, Buffer.from(response.data));
        console.log("Artifact downloaded successfully.");
        const unzip_dir = process.env.UNZIP_DIR;
        if (unzip_dir) {
            console.log("Unzipping artifact to directory: %s", unzip_dir);
            require('child_process').execSync(`unzip -o ${artifactFilename} -d ${process.env.UNZIP_DIR}`);
        }

    } else {
        core.setFailed("No artifact found.");
    }
}