const core = require('@actions/core');
const github = require('@actions/github');
const sdk = require('matrix-js-sdk');
const md = require('markdown-it')();

try {
  const homeserver = core.getInput('homeserver');
  const channel = core.getInput('channel');
  const token = core.getInput('token');
  const message = core.getInput('message');
  const status = core.getInput('status');

  // Debug output
  core.info(`homeserver: ${homeserver}`);
  core.info(`channel: ${channel}`);
  core.info(`token: ${token}`);
  core.info(`message: ${message}`);
  core.info(`status: ${status}`);

  const ctx = github.context;

  const { owner, repo } = ctx.repo;
  const {
    ref, workflow, actor, payload, serverUrl, runNumber,
  } = ctx;

  const repoURL = `${serverUrl}/${owner}/${repo}`;
  const runURL = `${repoURL}/actions/runs/${runNumber}`;

  // Create client object
  const client = sdk.createClient({
    baseUrl: `https://${homeserver}`,
    accessToken: token,
  });

  // Join channel (if we are already in the channel this does nothing)
  client.joinRoom(channel).then(() => {
    core.info('Joined channel');
  });

  const statusOpts = {
    success: {
      status: '🟢 Success',
      color: 0x28A745,
    },
    failure: {
      status: '🔴 Failure',
      color: 0xCB2431,
    },
    cancelled: {
      status: 'Cancelled',
      color: 0xDBAB09,
    },
  };

  const userMention = status === 'success' ? actor : `<a href="https://matrix.to/#/@${actor}:${homeserver}">${actor}</a>`;

  const formattedMessage = `
<h4 data-mx-color="${statusOpts[status].color}">${statusOpts[status].status} ${workflow}</h4>
<p><strong>Repository</strong> <a href="${repoURL}">${owner}/${repo}</a><br>
<strong>Commit</strong> <a href="${payload.head_commit.url}">${payload.head_commit.id.substring(0, 7)}</a> ${payload.head_commit.message}<br>
<strong>Ref</strong> ${ref}<br>
<strong>Triggered by</strong> ${userMention}<br>
<strong>Run</strong> <a href="${runURL}">#${runNumber}</a>
${md.render(message)}`;

  // Send message
  const content = {
    msgtype: (status === 'success') ? 'm.notice' : 'm.text',
    format: 'org.matrix.custom.html',
    body: `${statusOpts[status].status} ${workflow} @${actor}`,
    formatted_body: formattedMessage,
  };

  if (status !== 'success') content['m.mentions'] = { user_ids: [`@${actor}:${homeserver}`] };

  client.sendEvent(channel, 'm.room.message', content, '').then(() => {
    // message sent successfully
  }).catch((err) => {
    core.error(err);
  });
} catch (error) {
  core.setFailed(error.message);
}