run_me.arb

require 'octokit'
require "yaml"

token = YAML.load_file("config")
repo = 'rails/rails'
wanted_pull_requests = []


client = Octokit::Client.new(:access_token => token)
client.auto_paginate = true
#puts "requests left #{client.rate_limit!}"

#get all PRs
prs = client.pull_requests(repo).take(30)

#get commits for every PR
prs_with_commits = {}
prs.each do |pr|
    prs_with_commits[pr.number.to_s] = client.pull_request_commits(repo, pr.number.to_s)
end

#PRs that have more than one commit
multiple_commits_prs = {}
commits_urls = {}
total_commits = 0
prs_with_commits.each_key do |pr|
    prs_commits = prs_with_commits[pr].count
    total_commits += prs_commits
    if prs_commits > 1
        multiple_commits_prs[pr] = []
        prs_with_commits[pr].each do |commit|
            multiple_commits_prs[pr].push(commit.sha)
            commits_urls[commit.sha] = commit.html_url
        end
    end
end

puts "#{repo} has #{total_commits} commits in #{prs.count} pull requests." 
puts

multiple_commits_prs.each_key do |pr|
    affected_files = {}
    multiple_commits_prs[pr].each do |commit_sha|
        commit_info = client.commit(repo, commit_sha)
        commit_info.files.map{ |f| affected_files[f.filename] ? affected_files[f.filename] << commit_sha : (affected_files[f.filename] = [commit_sha] )}
    end
    affected_files.each_key do |filename|
        if affected_files[filename].count > 1
            wanted_pull_requests |= [pr]
            puts "File #{filename} is modified by more than one commit in PR ##{pr}!"
            puts "Commits info:"
            affected_files[filename].each do |commit_hash| 
                puts "commit #{commit_hash} (#{commits_urls[commit_hash]})"
            end
            puts "_____________________________________________________"
        end
    end
end

puts
puts "Full list of found pull requests: [#{wanted_pull_requests.count} total]"
puts wanted_pull_requests

# puts
# puts "requests left #{client.rate_limit!}"