#!/usr/bin/env node

var program = require('commander')
var request = require('request')
var Newsletter = require('./newsletter')
var fs = require('fs')

program
  .version('0.0.1')
  .option('--key [value]', 'Discourse API Key')
  .option('--link [value]', 'Link to newsletter')
  .option('--date [value]', 'Date of newsletter')
  .option('--output', 'Print newsletter to output, rather than posting to Discourse')
  .option('--input [path]', 'Use content from file')
  .option('--discourse [url]', 'Base url of discourse instance, e.g. https://discourse.mozilla.org/')
  .parse(process.argv)

new Newsletter().from_link(program.link).then(self => {
  data = {
    title: self.title,
    raw: self.markdown,
    category: 253
  }
  if (program.date) data.created_at = program.date
  if (program.output) {
    console.log(self.markdown)
  } else if (program.input) {
    fs.readFile(program.input, 'utf8', (err, file) => {
      if (err) throw err
      data.raw = file
      post_to_discourse(data)
    })
  } else {
    post_to_discourse(data)
  }
})

function post_to_discourse (data) {
  request.post({
    url: `${program.discourse}posts`,
    form: data,
    headers: {
      'Api-Key': program.key,
      'Api-Username': 'tldr',
    }
  }, (err, res, body) => {
    if (res.statusCode != 200) throw body
  })
}