require 'net/https'

namespace :repositories do
  def get_url_content(url, headers = {})
    uri = URI.parse(url)
    req = Net::HTTP::Get.new(uri)

    headers.each do |header, value|
      req[header] = value
    end

    Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
      http.request(req)
    end.body
  end

  def branch(software_id, branches, version)
    name = version.match(/^v?(?<branch>\d+\.\d+)(\.\d+)?$/)[:branch]

    return branches[name] if branches.include?(name)

    branch = Branch.new(
      name: name,
      software_id: software_id
    )
    branch.save
    branches[name] = branch.id
    branch.id
  end

  desc 'Update version from github repositories'
  task github: :environment do
    headers = {
      'Accept' => 'application/vnd.github.v3+json'
    }
    headers['Authorization'] = "token #{Figaro.env.github_token}" if Figaro.env.github_token

    GithubRepository.all.each do |repo|
      begin
        software = Software.find(repo.software_id)
        branches = software.branches.all.map { |b| [b.name, b.id] }.to_h
        versions = software.branches.all.map { |b| b.versions.all.map(&:number) }
        tags =
          JSON.parse(
            get_url_content(
              "https://api.github.com/repos/#{repo.name}/tags",
              headers
            )
          )

        tags.each do |tag|
          next if versions.include?(tag['name'])

          branch_id = branch(software.id, branches, tag['name'])
          date =
            JSON.parse(
              get_url_content(tag['commit']['url'], headers)
            )['commit']['committer']['date']

          puts Version.new(
            branch_id: branch_id,
            number: tag['name'],
            date: date
          ).save
        end
      rescue => e
        puts e.strace
        next
      end
    end
  end
end