#!/usr/bin/env ruby

require 'super_hooks'
require 'optparse'

class HooksPrinter
  def self.run
    max_length = 80
    [:project, :user, :global].each do |level|
      puts
      puts "#{level.capitalize} hooks:"
      puts '------------------'
      SuperHooks::Hook.where(level: level).each do |hook|
        text = hook.path.truncate_at_start(max_length, omission: '...')
        description = hook.description.truncate(75)
        printf "%-#{max_length}s\n", text
        printf "\t ~> %-#{max_length}s\n", description
      end
      puts
    end
  end
end

OptionParser.new do |opts|
  opts.banner = "Usage: #{File.basename(__FILE__)} [options]"

  opts.separator "\nA tool to manage project, user, and global Git hooks for multiple git repositories.\n"

  opts.separator "\nOptions:"

  opts.on('--install', 'Replace existing hooks in this repository with a call to git hooks run [hook]',
          'Move old hooks directory to hooks.old') do
    SuperHooks::Installer.new.run
    exit
  end

  opts.on('--uninstall', "Remove #{SuperHooks::BINARY_NAME}",
          'Removes hooks in this repository and rename `hooks.old` back to `hooks`') do
    SuperHooks::Installer.new.uninstall
    exit
  end

  opts.on('--install-global', "Create a template .git directory. It will be used whenever a git repository is created or cloned that will remind the user to install #{SuperHooks::BINARY_NAME}",
          "This can't be done by default for security reasons") do
    SuperHooks::Installer::Global.new.run
    exit
  end

  opts.on('--uninstall-global', 'Turn off the global .git directory template',
          "Those have reminders to install #{SuperHooks::BINARY_NAME}") do
    `git config --global --unset init.templatedir`.chomp
    exit
  end

  opts.on('--run CMD', 'run hooks for CMD (such as pre-commit)') do |cmd|
    SuperHooks::Runner.new(cmd, ARGV).run
  end

  opts.on('--list [option]', Array, 'list current hooks (for option)') do |_options|
    HooksPrinter.run
    exit
  end

  opts.separator ''

  opts.on('-v', '--version', "Current version of #{SuperHooks::BINARY_NAME}") do
    puts "#{SuperHooks::VERSION}"
    exit
  end

  opts.on('-h', '--help', 'Print this help message') do
    puts opts
    exit
  end

  opts.separator "\nSupported hooks are #{SuperHooks::Hook::LIST.join(', ')}"
end.parse!

unless SuperHooks.installed?
  puts 'Git hooks is not installed for this repository'
  exit 1
end

if ARGV.empty?
  puts 'Git hooks are installed in this repository'
  puts
  HooksPrinter.run
  exit
end