import * as nexe from "../lib/nexe";
import { getUnBuiltReleases, getLatestGitRelease } from "../lib/releases";
import { runDockerBuild } from "./docker";
import { getTarget, targetsEqual, NexeTarget } from "../lib/target";
import {
  pathExistsAsync,
  readFileAsync,
  execFileAsync,
  semverGt,
} from "../lib/util";
import axios from "axios";
import FormData from "form-data";
import { cpus } from "os";

const env = process.env,
  isPullRequest = env.BUILD_REASON === "PullRequest",
  isWindows = process.platform === "win32",
  isLinux = process.platform === "linux",
  buildHost = env.AGENT_JOBNAME || (isWindows && "windows_2017_2015") || "",
  isMac = process.platform === "darwin",
  headers = {
    Authorization: "token " + env.GITHUB_TOKEN,
    "User-Agent": "nexe (https://www.npmjs.com/package/nexe)",
  };

if (require.main === module) {
  if (!isPullRequest) {
    build().catch((x) => {
      console.error(x);
      process.exit(1);
    });
  }
}

async function build() {
  const releases = await getUnBuiltReleases({ headers });
  if (!releases.length) {
    return;
  }
  const windowsBuild = releases.find((x) => x.platform === "windows"),
    macBuild = releases.find((x) => x.platform === "mac"),
    linux = releases.find((x) => x.platform === "linux"),
    alpine = releases.find((x) => x.platform === "alpine");

  let target: NexeTarget | undefined;

  if (env.NEXE_VERSION) target = getTarget(env.NEXE_VERSION);
  else if (isWindows) target = windowsBuild;
  else if (isMac) target = macBuild;
  else if (isLinux) target = linux;
  if (buildHost.includes("alpine")) target = alpine;

  if (!target) {
    return console.log("Nothing to build...");
  }

  if (
    isWindows &&
    buildHost.includes("2017") &&
    !semverGt(target.version, "9.99.99")
  ) {
    return console.log(`Not building ${target} on this host...`);
  }
  if (
    isWindows &&
    buildHost.includes("2015") &&
    semverGt(target.version, "9.99.99")
  ) {
    return console.log(`Not building ${target} on this host...`);
  }

  const output = isWindows ? "./out.exe" : "./out",
    options = {
      mangle: false,
      build: true,
      verbose: Boolean(env.NEXE_VERBOSE!),
      target,
      make: ["-j" + cpus().length],
      output,
    };
  console.log("Building: " + target + " on " + buildHost);
  const stop = keepalive();

  if (
    [/*'arm7l', 'arm6l', 'arm64', */ "alpine"].includes(target.platform) &&
    buildHost.includes("alpine")
  ) {
    await runDockerBuild(target);
  } else {
    await nexe.compile(options);
  }
  stop();
  if (await pathExistsAsync(output)) {
    await assertNexeBinary(output);
    const gitRelease = await getLatestGitRelease({ headers }),
      unbuiltReleases = await getUnBuiltReleases({ headers });
    if (!unbuiltReleases.some((x) => targetsEqual(x, target!))) {
      console.log(`${target} already uploaded.`);
      process.exit(0);
      return;
    }

    // Create form data for file upload
    const formData = new FormData();
    formData.append("file", await readFileAsync(output), {
      filename: target.toString(),
      contentType: "application/octet-stream",
    });

    const uploadUrl = gitRelease.upload_url.split("{")[0];
    await axios
      .post(uploadUrl, formData, {
        params: { name: target.toString() },
        headers: {
          ...headers,
          ...formData.getHeaders(),
        },
      })
      .catch((reason) => {
        console.log(reason && reason.response && reason.response.data);
        throw reason;
      });
    console.log(target + " uploaded.");
    process.exit(0);
  }
}

function keepalive() {
  const keepalive = setInterval(() => console.log("Building..."), 300 * 1000);
  return () => clearInterval(keepalive);
}

function assertNexeBinary(file: string) {
  return execFileAsync(file).catch((e) => {
    if (e && e.stack && e.stack.includes("Invalid Nexe binary")) {
      return;
    }
    throw e;
  });
}