require 'uri'
require 'yaml'
require 'rugged'
require 'levenshtein'

require_relative "licensee/version"
require_relative "licensee/license"
require_relative "licensee/licenses"
require_relative "licensee/license_file"
require_relative "licensee/project"
require_relative "licensee/filesystem_repository"
require_relative "licensee/matcher"
require_relative "licensee/matchers/exact_matcher"
require_relative "licensee/matchers/copyright_matcher"
require_relative "licensee/matchers/git_matcher"
require_relative "licensee/matchers/levenshtein_matcher"

class Licensee

  # Over which percent is a match considered a match by default
  CONFIDENCE_THRESHOLD = 90

  # Base domain from which to build license URLs
  DOMAIN = "http://choosealicense.com"

  class << self

    attr_writer :confidence_threshold

    # Returns an array of Licensee::License instances
    def licenses
      @licenses ||= Licensee::Licenses.list
    end

    # Returns the license for a given git repo
    def license(path)
      Licensee::Project.new(path).license
    end

    # Diffs the project license and the known license
    def diff(path)
      Licensee::Project.new(path).license_file.diff
    end

    # Array of matchers to use, in order of preference
    # The order should be decending order of anticipated speed to match
    def matchers
      [Licensee::CopyrightMatcher, Licensee::ExactMatcher, Licensee::GitMatcher, Licensee::LevenshteinMatcher]
    end

    def confidence_threshold
      @confidence_threshold ||= CONFIDENCE_THRESHOLD
    end
  end
end