'use strict';

const fs = require('fs'),
    request = require('request');

const sourceDir = process.argv[2],
    sourceRepo = process.argv[3],
    destUrl = process.argv[4],
    destRepo = process.argv[5];

process.chdir(sourceDir);

let Users = [], IssuesAndPRs = [];

fs.readdirSync('.').forEach(filename => {
    if (/^issues_\d*\.json$/.test(filename)) readIssues(filename);
    else if (/^pull_requests_\d*\.json$/.test(filename)) readIssues(filename);
    if (/^users_\d*\.json$/.test(filename)) readUsers(filename);
});

function readIssues (filename) {
    IssuesAndPRs.push.apply(IssuesAndPRs, JSON.parse(fs.readFileSync(filename, 'utf8')));
}

function readUsers (filename) {
    Users.push.apply(Users, JSON.parse(fs.readFileSync(filename, 'utf8')));
}

IssuesAndPRs = IssuesAndPRs
    .filter(each => each.repository.slice(-sourceRepo.length) === sourceRepo)
    .sort((a, b) => +a.url.split('/').pop() - +b.url.split('/').pop());

function postIssue (issues) {
    const issue = issues.shift();
    if (!issue) return;

    const user = userByUrl(issue.user),
        username = user && user.name || `${user ? user.login : "???"}@github`;

    request.post(`${destUrl}/api/v1/repos/${destRepo}/issues`, {
        json: true,
        body: {
            title: issue.title,
            body: `Originally at ${issue.created_at} by ${username}${issue.closed_at ? ` closed at ${issue.closed_at}` : ""}${issue.type === "pull_request" ? " (pull request)" : ""}\r\n\r\n${issue.body}`,
            closed: !!issue.closed_at,
            labels: [] //issue.labels.map(each => each.split('/').pop())
        }
    }, (err, res, body) => {
        if (err) console.error(err);
        console.log(issue.title);
        console.log(res.statusCode);
        postIssue(issues);
    });
}

postIssue(IssuesAndPRs.slice());

function userByUrl (url) {
    return Users.filter(each => each.url === url)[0];
}