index.js

import core from "@actions/core";
import GitHubProject from "github-project";

const run = async () => {
  try {
    const owner = core.getInput("owner");
    const number = Number(core.getInput("number"));
    const token = core.getInput("token");
    const iterationField = core.getInput("iteration-field"); // name of the iteration field
    const iterationType = core.getInput("iteration"); // last or current
    const newiterationType = core.getInput("new-iteration"); // current or next
    const statuses = core.getInput("statuses").split(",");
    const coreExclusedStatuses = core.getInput("excluded-statuses");
    const excludedStatuses = coreExclusedStatuses ? coreExclusedStatuses.split(",") : [];

    const ghProject = new GitHubProject({ owner, number, token, fields: { iteration: iterationField } });

    const items = await ghProject.items.list();
    core.debug(`items: ${JSON.stringify(items)}`);

    const project = await ghProject.getProperties();

    if (!project.fields) {
      core.setFailed(`No iteration field found with name ${iterationField}`);
      return;
    }
    core.debug(`project fields: ${JSON.stringify(project.fields)}`);

    const projectIterationField = project.fields.iteration;

    core.debug(`project iteration field: ${JSON.stringify(projectIterationField)}`);

    const lastIteration = projectIterationField.configuration.completedIterations[0];
    const currentIteration = projectIterationField.configuration.iterations[0];
    const nextIteration = projectIterationField.configuration.iterations[1];

    const iteration = iterationType === "last" ? lastIteration : currentIteration;

    if (!iteration) {
      core.setFailed(`No ${iterationType} iteration found. Check if the iteration exists.`);
      return;
    }

    core.debug(`iteration: ${iteration.title}`);

    const newIteration = newiterationType === "current" ? currentIteration : nextIteration;

    if (!newIteration) {
      core.setFailed(`No ${newiterationType} iteration found. Check if the iteration exists.`);
      return;
    }

    core.debug(`newIteration: ${newIteration.title}`);

    const filteredItems = items.filter((item) => {
      // If item is not in the old iteration, return false.
      if (item.fields.iteration !== iteration.title) return false;
      // If excludedStatuses are supplied, use that. Otherwise, use statuses.
      if (excludedStatuses?.length) {
        // Move item only if its status _is not_ in the excluded statuses list.
        return !excludedStatuses.includes(item.fields.status);
      } else {
        // Move item only if its status _is_ in the statuses list.
        return statuses.includes(item.fields.status);
      }
    });

    await Promise.all(
      filteredItems.map((item) => ghProject.items.update(item.id, { iteration: newIteration.title }))
    );
  } catch (error) {
    core.setFailed(error);
  }
};

run();