#!/usr/bin/env ruby -W1
# frozen_string_literal: true

$LOAD_PATH.unshift File.join(__dir__, '..', 'lib')
require 'snibbets'

module Snibbets
  class << self
    attr_reader :query

    def display_changelog
      changelog = File.expand_path(File.join(__dir__, '..', 'CHANGELOG.md'))
      pagers = [
        'mdless',
        'mdcat -p',
        'bat',
        ENV['PAGER'],
        'less -FXr',
        ENV['GIT_PAGER'],
        'more -r'
      ]
      pager = pagers.find { |cmd| TTY::Which.exist?(cmd.split.first) }
      system %(#{TTY::Which.which(pager)} "#{changelog}")
    end

    def run
      options = Snibbets.options
      arguments = Snibbets.arguments
      Color.coloring = $stdout.isatty

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

        opts.on('-a', '--all', 'If a file contains multiple snippets, output all of them (no menu)') do
          options[:all] = true
        end

        opts.on('-c', '--[no-]copy', 'Copy the output to the clibpoard (also displays on STDOUT)') do |v|
          options[:copy] = v
        end

        opts.on('-e', '--edit', 'Open the selected snippet in your configured editor') do
          arguments[:edit_snippet] = true
        end

        opts.on('-n', '--[no-]name-only', 'Only search file names, not content') do |v|
          options[:name_only] = v
        end

        opts.on('--[no-]notes', 'Display the full content of the snippet') do |v|
          options[:all_notes] = v
        end

        opts.on('-o', '--output FORMAT', 'Output format (json|launchbar|*raw)') do |outformat|
          valid = %w[json launchbar lb raw]
          if outformat.downcase =~ /(launchbar|lb)/
            options[:launchbar] = true
            options[:interactive] = false
          elsif valid.include?(outformat.downcase)
            options[:output] = outformat.downcase
          end
        end

        opts.on('-p', '--paste', '--new', 'Interactively create a new snippet from clipboard contents (Mac only)') do
          arguments[:paste_snippet] = true
        end

        opts.on('-q', '--quiet', 'Skip menus and display first match') do
          options[:interactive] = false
          options[:launchbar] = false
        end

        opts.on('-s', '--source FOLDER', 'Snippets folder to search') do |folder|
          options[:source] = File.expand_path(folder)
        end

        opts.on('--configure', 'Open the configuration file in your default editor') do
          arguments[:edit_config] = true
        end

        opts.on('--[no-]blockquotes', 'Include block quotes in output') do |v|
          options[:include_blockquotes] = v
        end

        opts.on('--[no-]highlight', 'Use pygments or skylighting to syntax highlight (if installed)') do |v|
          options[:highlight] = v
        end

        opts.on('--nvultra', 'Open the result in nvUltra') do
          arguments[:nvultra] = true
        end

        opts.on('--save', 'Save the current command line options to the YAML configuration') do
          arguments[:save_config] = true
        end

        opts.on('-h', '--help', 'Display this screen') do
          puts "{by}Snibbets {w}v#{VERSION}".x
          puts
          puts optparse
          Process.exit 0
        end

        opts.on('-v', '--version', 'Display version information') do
          puts "{by}Snibbets {w}v#{VERSION}".x
          Process.exit 0
        end

        opts.on('--changes', 'Display the changelog (release notes)') do
          display_changelog
          Process.exit 0
        end
      end

      optparse.parse!

      if arguments[:save_config]
        config = Snibbets::Config.new
        config.write_config
        puts "{bg}Configuration saved to {w}#{config.config_file}".x
      end

      if arguments[:edit_config]
        config = Snibbets::Config.new
        config.write_config
        open_snippet_in_editor(config.config_file)
        Process.exit 0
      end

      unless File.directory?(options[:source])
        puts '{br}The Snippets folder doesn\'t exist, please configure it.'.x
        puts '{bg}Run `{bw}snibbets --configure{bg}` to open the config file for editing.'.x
        Process.exit 1
      end

      if arguments[:paste_snippet]
        Snibbets.new_snippet_from_clipboard
        Process.exit 0
      end

      @query = ''

      if options[:launchbar]
        @query = if $stdin.stat.size.positive?
                  $stdin.read.force_encoding('utf-8')
                else
                  ARGV.join(' ')
                end
      elsif ARGV.length
        @query = ARGV.join(' ')
      end

      @query = CGI.unescape(@query)

      if @query.strip.empty?
        if arguments[:save_config]
          Process.exit 0
        else
          puts '{br}No search query'.x
          puts optparse
          Process.exit 1
        end
      end

      handle_results(search(try: 0))
    end
  end
end

Snibbets.run