# Install Sinatra: gem install sinatra
require_relative "initialize_database"
require_relative "database_queries"
require_relative "cryptography"


require 'sinatra'
require 'json'
require 'sqlite3'
require 'jwt'

payload = { data: {time: 'now', help: 'no'}.to_json, test: 'hello' }
hmac_secret = 'my$ecretK3y'
token = JWT.encode payload, hmac_secret, 'HS256'
#puts token

begin
  decoded_token = JWT.decode token, hmac_secret, true, { algorithm: 'HS256' }
  puts "Token is valid!"
  puts "Decoded token: #{decoded_token}"

  puts data_value = decoded_token.first['data']
  puts test_value = decoded_token.first['test']
rescue JWT::DecodeError
  puts "Invalid token or signature!"
end

#puts decoded_token

initialize_database

post '/auth/login' do
  content_type :json
  
  username = params[:username]
  password = params[:password]

  unless check_if_user_exists username
    status 401
    
    return { jwt: "Unuthorized Access" }.to_json
  end

  user_id = get_user_id username

  unless check_password_for_user(user_id, password)
    status 401
    
    return { jwt: "Unuthorized Access" }.to_json
  end

  { jwt: "Logged in" }.to_json
end

def get_jwt (username, expiry_time)
  get_claims username
end

def get_claims (username)
  puts "Getting claims for #{username}"
  db = SQLite3::Database.new('./database/auth.db')
  results = db.execute('
    SELECT        C.claim
    FROM          users U
      INNER JOIN  user_claims UC ON U.id = UC.user_id
      INNER JOIN  claims C ON UC.claim_id = U.id  
    WHERE         u.username = ?
  ', username)
  
  
  if results.empty?
    puts 'No claims found.'
  else
    results.each do |column|
      puts "#{column[0]}"
    end
  end

  return results
end

# Run the application
# ruby your_file_name.rb