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lsa.rb
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lsa.rb
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require 'sinatra'
require 'sinatra/content_for'
require 'sinatra/reloader' if development?
require 'tilt/erubis'
require 'bcrypt'
require 'yaml'
require 'require_all'
require_all 'lib'
configure do
enable :sessions
set :session_secret, 'secret lsa'
end
before do
session[:clients] ||= []
end
def require_signed_in_user
unless user_signed_in?
session[:error] = "You must be signed in to do that."
redirect "/"
end
end
def user_signed_in?
session.key?(:username)
end
def load_user_credentials
credentials_path = if ENV["RACK_ENV"] == "test"
File.expand_path("../test/user_credentials.yml", __FILE__)
else
File.expand_path("../user_credentials.yml", __FILE__)
end
YAML.load_file(credentials_path)
end
def valid_credentials?(username, password)
credentials = load_user_credentials
if credentials.key?(username)
bcrypt_password = BCrypt::Password.new(credentials[username])
bcrypt_password == password
else
false
end
end
def retrieve_sample_client
{name: "Sample Client", years: "4", months: "4", transcript: SAMPLE_TRANSCRIPT}
end
def error_for_client_name(name)
if name.empty?
'You must enter a name.'
elsif session[:clients].any? { |client| client[:name] == name }
'That name is already taken.'
end
end
def error_for_client_age(years, months)
if years < 3 || years >= 8 || months < 0 || months > 11
'Age must be between 3 years and 7 years, 11 months. Enter a value between 3 and 7 for years and a value between 0 and 11 for months.'
elsif years.to_i != years || months.to_i != months
'Please enter positive integer values only for age.'
end
end
get '/' do
redirect '/clients'
end
get '/clients' do
erb :home
end
# Render the new client form:
get '/clients/new' do
require_signed_in_user
erb :new_client
end
# Add new client
post '/clients' do
require_signed_in_user
client_name = params[:client_name]
years = params[:years]
months = params[:months]
error = error_for_client_name(client_name) || error_for_client_age(years.to_f, months.to_f)
if error
session[:error] = error
erb :new_client
else
session[:success] = 'The client has been added.'
session[:clients] << {name: client_name, years: years, months: months, transcript: []}
redirect '/clients'
end
end
# Render transcript page for indivdual client
get '/clients/:name/transcript' do
require_signed_in_user
@name = params[:name]
@client = session[:clients].find { |client| client[:name] == @name }
erb :client
end
# Delete client
post '/clients/:name/destroy' do
require_signed_in_user
name = params[:name]
session[:clients].delete_if { |client| client[:name] == name }
session[:success] = "Client has been deleted."
redirect "/clients"
end
# Add new utterance to transcript
post '/clients/:name/transcript' do
require_signed_in_user
@name = params[:name]
utterance = params[:utterance]
@client = session[:clients].find { |client| client[:name] == @name }
@client[:transcript] << utterance
session[:success] = 'Utterance has been added.'
redirect "/clients/#{@name}/transcript"
end
# Update utterance already in transcript
post '/clients/:name/transcript/:index' do
require_signed_in_user
@name = params[:name]
utterance = params[:utterance]
index = params[:index].to_i
@client = session[:clients].find { |client| client[:name] == @name }
@client[:transcript][index] = utterance
session[:success] = 'Utterance has been updated.'
redirect "/clients/#{@name}/transcript"
end
# Delete utterance
post '/clients/:name/transcript/:index/destroy' do
require_signed_in_user
@name = params[:name]
index = params[:index].to_i
@client = session[:clients].find { |client| client[:name] == @name }
@client[:transcript].delete_at(index)
session[:success] = 'Utterance has been deleted.'
redirect "/clients/#{@name}/transcript"
end
# View language sample analysis
get '/clients/:client/transcript/analysis' do
require_signed_in_user
@name = params[:client].to_s
if @name == "Sample Client"
@client = retrieve_sample_client
else
@client = session[:clients].find { |client| client[:name] == @name }
end
@transcript = @client[:transcript]
@language_analysis = { "Total Number Words (TNW)" => total_word_count(@transcript),
"Number of Different Words (NDW)" => total_different_words(@transcript),
"Type Token Ratio (TTR)" => type_token_ratio(@transcript),
"Mean Length of Utterance (MLU)" => calculate_mlu(@transcript)
}
@mean_mlu = find_mean_mlu_for_age(@client[:years].to_i, @client[:months].to_i)
erb :analysis
end
#view transcription rules
get '/transcription_guide' do
erb :transcription_guide
end
#view signin page
get '/signin' do
erb :signin
end
#verify credentials
post '/signin' do
username = params[:username]
password = params[:password]
if valid_credentials?(username, password)
session[:username] = username
session[:success] = "Welcome!"
redirect "/"
else
session[:error] = "Invalid Credentials"
status 422
erb :signin
end
end
#signout from app
get '/signout' do
session.delete(:username)
session[:success] = "You have been signed out."
redirect "/"
end