require_relative '../user'
require_relative '../project'
require_relative '../sshkey'

require 'sqlite3'
require 'json'

module EmacsCollab
  module Database

    class SQLite
      def initialize(db_name)
        @db = SQLite3::Database.new "#{DATA_PATH}/#{db_name}.db"
      end
      
      def get_user(id)
        # TODO
        row = @db.execute("SELECT * FROM Users WHERE name = ?", [id])[0]
        unless row
          raise UserNotFoundError, "User with id #{id} could not be found in database"
        end

        user = User.new(row[0])
        user.pw_hash = row[1]
        user.salt = row[2]
        user.keys = row[3] == nil ? nil : JSON.parse(row[3])

        user
      end

      def add_user(user)
        @db.execute("INSERT INTO Users (name) VALUES (?)",
                    [user.id])
      end

      def update_user(user)
        @db.execute("UPDATE Users SET keys = ? WHERE name = ?",
                    [JSON.generate(user.keys),user.id])
      end

      def change_user_password(user,hash,salt)
        @db.execute("UPDATE Users SET passwd = ?, salt = ? WHERE name = ?",
                    [hash,salt,user.id])
      end
    end
  end
end

#user1 = User.new("user1")
#add_user(user1)
#change_user_password(user1,"testtest")