import { exec } from "child-process-promise";
import fetch from "node-fetch";
import opn from "opn";
import { CommandInstance } from "vorpal";
import { getPreference, hasPreference, setPreference } from "./preferences";

const TOKEN_KEY = "gitlab-personal-access-token";
export const getGitlabToken = async (vorpal: CommandInstance) => {
  if (!(await hasPreference(TOKEN_KEY))) {
    vorpal.log("");
    vorpal.log(
      "☝ in order to access the api, we need a personal access token"
    );
    vorpal.log("Its best to create one specifically for catladder");
    vorpal.log("");
    vorpal.log("☝ we open up the settings page for you!");
    vorpal.log("");
    const { shouldContinue } = await vorpal.prompt({
      default: true,
      message: "Ok",
      name: "shouldContinue",
      type: "prompt",
    });

    opn("https://git.panter.ch/-/profile/personal_access_tokens");

    vorpal.log("Please type in gitlab's personal access token");

    const { personalToken } = await vorpal.prompt({
      type: "string",
      name: "personalToken",
      default: "",
      message: "Your personal access token ",
    });
    if (personalToken) {
      await setPreference(TOKEN_KEY, personalToken);
    }
  }
  return getPreference(TOKEN_KEY);
};

export const doGitlabRequest = async (
  vorpal: CommandInstance,
  path: string,
  data?: any
) => {
  const rootToken = await getGitlabToken(vorpal);
  const result = await fetch(`https://git.panter.ch/api/v4/${path}`, {
    method: data ? "POST" : "GET",
    headers: {
      "Content-Type": "application/json",
      "Private-Token": rootToken,
    },
    body: JSON.stringify(data),
  });

  if (result.status >= 200 && result.status < 400) {
    return result.json();
  }

  throw new Error(
    `Could not send request to gitlab api: ${result.status} "${
      result.statusText
    }".\nResponse: ${JSON.stringify(await result.json(), null, 2)}`
  );
};

export const getProjectInfo = async (vorpal: CommandInstance): Promise<any> => {
  const gitRemoteOriginUrl = (
    await exec("git config --get remote.origin.url")
  ).stdout.trim();
  const projectPath = /(https:\/\/|git@)git\.panter\.ch[:/](.*)\.git/g.exec(
    gitRemoteOriginUrl
  );
  const project = await doGitlabRequest(
    vorpal,
    `projects/${encodeURIComponent(projectPath[2])}`
  );
  return project;
};