import common from "../common/common-flex.mjs";
import {
  getSampleTimerEvent, getSampleWebhookEvent,
} from "./common-sample-events.mjs";
export default {
  ...common,
  key: "github-new-commit",
  name: "New Commit",
  description: "Emit new event when commits are pushed to a branch",
  version: "1.0.12",
  type: "source",
  dedupe: "unique",
  props: {
    eventTypeInfo: {
      type: "alert",
      alertType: "info",
      content: "**Note:** one event is emitted for each individual commit, even if they are received at the same time.",
    },
    ...common.props,
    branch: {
      propDefinition: [
        common.props.github,
        "branch",
        (c) => ({
          repoFullname: c.repoFullname,
        }),
      ],
    },
  },
  methods: {
    ...common.methods,
    _getLastTimestamp() {
      return this.db.get("lastTimestamp") ?? Date.now();
    },
    _setLastTimestamp(value) {
      this.db.set("lastTimestamp", value);
    },
    getSampleTimerEvent,
    getSampleWebhookEvent,
    getWebhookEvents() {
      return [
        "push",
      ];
    },
    getSummary(item) {
      return `New commit: ${item.commit?.message ?? item.message}`;
    },
    async onWebhookTrigger(event) {
      const {
        body, headers,
      } = event;
      if (body?.ref?.split?.("refs/heads/").pop() === this.branch.split("/").pop()) {
        body.commits.forEach((commit) => {
          const { id } = commit;
          this.emitEvent({
            id,
            headers,
            item: commit,
          });
        });
      }
    },
    async onTimerTrigger() {
      const { repoFullname } = this;
      const timestamp = this._getLastTimestamp();
      const since = new Date(timestamp).toISOString()
        .slice(0, -5) + "Z";
      const sha = this.branch.split("/").pop();
      const items = await this.github.getCommits({
        repoFullname,
        sha,
        since,
      });
      const savedItems = this._getSavedItems();
      const shouldEmit = this.shouldEmit();
      items
        .filter(({ sha }) => !savedItems.includes(sha))
        .sort((a, b) => {
          const dateA = new Date(a.commit.author.date);
          const dateB = new Date(b.commit.author.date);
          return dateA - dateB;
        })
        .forEach((item) => {
          const id = item.sha;
          if (shouldEmit) {
            this.emitEvent({
              id,
              item,
            });
          }
          savedItems.push(id);
        });
      this._setSavedItems(savedItems);
      this._setLastTimestamp(Date.now());
    },
    getHttpDocsLink() {
      return "https://docs.github.com/en/webhooks/webhook-events-and-payloads#push";
    },
    getTimerDocsLink() {
      return "https://docs.github.com/en/rest/commits/commits?apiVersion=2022-11-28#list-commits";
    },
  },
};