module GitHelper
  class LocalCode
    def checkout_default
      system('git checkout $(git symbolic-ref refs/remotes/origin/HEAD | sed "s@^refs/remotes/origin/@@")')
    end

    def forget_local_commits
      system('git pull')
      system('git reset --hard origin/HEAD')
    end

    def empty_commit
      system('git commit --allow-empty -m "Empty commit"')
    end

    def clean_branches
      system('git checkout $(git symbolic-ref refs/remotes/origin/HEAD | sed "s@^refs/remotes/origin/@@")')
      system('git pull')
      system('git fetch -p')
      system('git branch -vv | grep "origin/.*: gone]" | awk "{print \$1}" | grep -v "*" | xargs git branch -D')
    end

    def new_branch(branch_name)
      system('git pull')
      system("git branch --no-track #{branch_name}")
      system("git checkout #{branch_name}")
      system("git push --set-upstream origin #{branch_name}")
    end

    def change_remote(remote_name, remote_url)
      `git remote set-url #{remote_name} #{remote_url}`
    end

    def remotes
      `git remote -v`.split("\n")
    end

    def remote_name(remote)
      remote.scan(/([a-zA-z]+)/).first.first
    end

    def ssh_remote?(remote)
      remote.scan(/(git@)/).any?
    end

    def https_remote?(remote)
      remote.scan(/(https:\/\/)/).any?
    end

    def remote_project(remote)
      if https_remote?(remote)
        remote.scan(/https:\/\/[\S]+\/([\S]*).git/).first.first
      elsif ssh_remote?(remote)
        remote.scan(/\/([\S]*).git/).first.first
      end
    end

    def remote_source(remote)
      if https_remote?(remote)
        remote.scan(/https:\/\/([a-zA-z.]+)\//).first.first
      elsif ssh_remote?(remote)
        remote.scan(/git@([a-zA-z.]+):/).first.first
      end
    end

    def github_repo?
      remotes.select { |remote| remote.include?('github') }.any?
    end

    def gitlab_project?
      remotes.select { |remote| remote.include?('gitlab') }.any?
    end

    def project_name
      # Get the repo/project name by looking in the remote URLs for the full name
      `git remote -v`.scan(/\S[\s]*[\S]+.com[\S]{1}([\S]*).git/).first.first
    end

    def branch
      # Get the current branch by looking in the list of branches for the *
      `git branch`.scan(/\*\s([\S]*)/).first.first
    end

    def default_branch
      `git symbolic-ref refs/remotes/origin/HEAD | sed "s@^refs/remotes/origin/@@" | tr -d "\n"`
    end

    def template_options(identifiers)
      nested_templates = Dir.glob(
        File.join("#{identifiers[:template_directory]}/#{identifiers[:nested_directory_name]}", '*.md'),
        File::FNM_DOTMATCH | File::FNM_CASEFOLD
      )
      non_nested_templates = Dir.glob(
        File.join(identifiers[:template_directory], "#{identifiers[:non_nested_file_name]}.md"),
        File::FNM_DOTMATCH | File::FNM_CASEFOLD
      )
      root_templates = Dir.glob(
        File.join('.', "#{identifiers[:non_nested_file_name]}.md"),
        File::FNM_DOTMATCH | File::FNM_CASEFOLD
      )
      nested_templates.concat(non_nested_templates).concat(root_templates).uniq
    end

    def read_template(file_name)
      File.open(file_name).read
    end

    def generate_title(local_branch)
      branch_arr = local_branch.split(local_branch.include?('_') ? '_' : '-')

      return if branch_arr.empty?

      if branch_arr.length == 1
        branch_arr.first.capitalize
      elsif branch_arr[0].scan(/([\w]+)/).any? && branch_arr[1].scan(/([\d]+)/).any? # branch includes jira_123 at beginning
        issue = "#{branch_arr[0].upcase}-#{branch_arr[1]}"
        description = branch_arr[2..-1].join(' ')
        "#{issue} #{description.capitalize}"
      elsif branch_arr[0].scan(/([\w]+-[\d]+)/).any? # branch includes string jira-123 at beginning
        issue = branch_arr[0].upcase
        description = branch_arr[1..-1].join(' ')
        "#{issue} #{description.capitalize}"
      else # plain words
        branch_arr[0..-1].join(' ').capitalize
      end
    end
  end
end