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BankAccounts #18

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6c6d2ce
Initialized the module Bank and class Account
aniagonzalez Feb 29, 2016
bc22604
Set balance variable as accessible to read and set
aniagonzalez Feb 29, 2016
f98d73b
Added raise ArgumentError if the initial balance is less than 0
aniagonzalez Feb 29, 2016
4a58655
Added the warning message for withdraw amount greater than balance
aniagonzalez Feb 29, 2016
cf30915
Added the Owner class
aniagonzalez Feb 29, 2016
e394372
Corrected how Owner class is initialized
aniagonzalez Feb 29, 2016
ecf40d1
Change Owner initialize information to hash
aniagonzalez Feb 29, 2016
57fe69b
Added self.all and self.find methods
aniagonzalez Mar 2, 2016
bfb1720
Refactored the self.find method for DRY issues
aniagonzalez Mar 2, 2016
c1f750d
Refactored self.find more! erased one whole line of code...
aniagonzalez Mar 2, 2016
9d6dd52
Got the self.all in Owner class to add an array of accounts to the in…
aniagonzalez Mar 2, 2016
aeee1c0
Got the self.all for Accounts to find the owner and add it to the ins…
aniagonzalez Mar 2, 2016
9b7bec4
Created SavingsAccount class, inheriting behavior from Account class
aniagonzalez Mar 3, 2016
1bfa573
Added the withdraw_using_check method
aniagonzalez Mar 3, 2016
bb7eccc
Created the MoneyMarketAccount and set initial balance limit to $10,000
aniagonzalez Mar 4, 2016
aed2b06
Added the deposit functionality for the MoneyMarketAccount
aniagonzalez Mar 4, 2016
c2f8509
Added the add_interest method for the MMA.
aniagonzalez Mar 4, 2016
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278 changes: 278 additions & 0 deletions accounts.rb
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Original file line number Diff line number Diff line change
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# BankAccounts
# Create a Bank module which will contain your Account class and any future bank account logic.

module Bank

#A new account should be created with an ID and an initial balance
class Account
#Should be able to access the current balance of an account at any time.
attr_reader :balance, :id
def initialize(id, balance, open_date, its_owner = nil) #intialize owner to nil
#A new account cannot be created with initial negative balance - this will raise an ArgumentError
raise ArgumentError, "A new account cannot be created with initial negative balance." if balance < 0
@id = id
@balance = balance
@open_date = open_date
@owner_id = its_owner
#@account_owner = owner #link this??
end

def self.all(file_path = "./support/accounts.csv")
require 'CSV'
all_accounts = []
CSV.foreach(file_path, "r") do |line|

its_owner = ""
CSV.foreach("./support/account_owners.csv", "r") do |match|
if match[0].to_s == line[0].to_s #if in the relaitonship file the owner id is equal to the owner
its_owner = match[1] #send the account id into their_accounts array
end
end


all_accounts << self.new(line[0].to_i, line[1].to_f, line[2], its_owner)
end
return all_accounts
end

def self.find(id)
self.all.each do |account_inst|
if account_inst.id.to_s == id.to_s
return account_inst
end
end
end

# withdraw method that accepts a single parameter which represents the amount of money
# that will be withdrawn. This method should return the updated account balance.
def withdraw(amount)
#withdraw method does not allow the account to go negative - Will puts a
#warning message and then return the original un-modified balance
if amount <= @balance
@balance = @balance - amount
return @balance
else
puts "WARNING: The amount requested is greater than the account's balance."
return @balance
end
end

# deposit method that accepts a single parameter which represents the amount of money
# that will be deposited. This method should return the updated account balance.
def deposit(amount)
@balance = @balance + amount
return @balance
end

def add_owner(id)
@owner_id = id
end
end

class SavingsAccount < Bank::Account
attr_reader :balance, :id
WITHDRAW_FEE = 2
def initialize(id, balance, open_date, its_owner = nil)
raise ArgumentError, "A new account cannot be created with initial negative balance." if balance < 10
@id = id
@balance = balance
@open_date = open_date
@owner_id = its_owner
#@account_owner = owner #link this??
end

def withdraw(amount)
if (amount + WITHDRAW_FEE) <= @balance
new_balance = @balance - amount - WITHDRAW_FEE
if new_balance < 10
puts "WARNING: The account cannot go below $10. Withdrawal refused."
return @balance
else
@balance = new_balance
return @balance
end
else
puts "WARNING: The amount requested plus the fee is greater than the account's balance."
return @balance
end
end

def add_interest(rate)
interest = @balance * rate/100
@balance = @balance + interest
return interest
end
end

class CheckingAccount < Account
WITHDRAW_FEE = 1
TRANSACTION_FEE = 2
attr_reader :number_free_checks, :number_incurred_checks

def initialize(id, balance, open_date, its_owner = nil)
super
@number_free_checks = 3
@number_incurred_checks = 0
end

def withdraw(amount)
if (amount + WITHDRAW_FEE) <= @balance
@balance = @balance - amount - WITHDRAW_FEE
return @balance
else
puts "WARNING: The amount requested plus the fee is greater than the account's balance."
return @balance
end
end

def withdraw_using_check(amount)
#Determine if there is an incurred_fee: more than 3 checks, incurs in TRANSACTION_FEE
if @number_free_checks <= 0
incurred_fee = TRANSACTION_FEE
else
incurred_fee = 0
end

if (amount + incurred_fee) <= @balance
new_balance = @balance - amount - incurred_fee
if new_balance < -10
puts "WARNING: The account cannot go below -$10. Check withdrawal refused."
return @balance
else
@balance = new_balance
@number_free_checks = @number_free_checks - 1
@number_incurred_checks = @number_incurred_checks + 1
return @balance
end
else
puts "WARNING: The amount requested plus the incurred fee is greater than the account's balance."
return @balance
end
end

def reset_checks
@number_free_checks = 3
end
end

class MoneyMarketAccount < Account
TRANSACTION_LIMIT = 6

attr_reader :balance, :id, :transaction_count
def initialize(id, balance, open_date, its_owner = nil)
raise ArgumentError, "A new account cannot be created with initial balance lower than $10,000." if balance < 10000
@id = id
@balance = balance
@open_date = open_date
@owner_id = its_owner
@transaction_count = 0
end

def withdraw(amount)
#If a withdrawal causes the balance to go below $10,000, a fee of $100
#is imposed and no more transactions are allowed until the balance is increased using a deposit transaction
if @transaction_count < 6
if balance < 10000
puts "WARNING: No more transactions allowed until balance is increased above $10,000"
else
if amount <= @balance
new_balance = @balance - amount
if new_balance < 10000
imposed_fee = 100
else
imposed_fee = 0
end
@balance = @balance - amount - imposed_fee
@transaction_count = @transaction_count + 1
if imposed_fee > 0
puts "WARNING: The balance has gone below $10,000 and a fee of $100 was applied. No more transactions allowed until balance is increased."
end
return @balance

else
puts "WARNING: The amount requested is greater than the account's balance."
return @balance
end
end
else
puts "The maximum number of transactions for the month has been reached. Withdrawal refused."
return @balance
end
end #withdraw method end

def deposit(amount)
#A deposit performed to reach or exceed the minimum balance of $10,000
#is not counted as part of the 6 transactions.
if @balance < 10000
@balance = @balance + amount
puts "This transaction did not count towards your transaction count."
return @balance

else
if @transaction_count < 6
@balance = @balance + amount
@transaction_count = @transaction_count + 1
return @balance
else
puts "The maximum number of transactions for the month has been reached. Withdrawal refused."
return @balance
end #conditional for transaction_count end

end # balance < 10000 conditional end
end #deposit method end


def reset_transactions
@transaction_count = 0
end

def add_interest(rate)
interest = @balance * rate/100
@balance = @balance + interest
return interest
end


end

class Owner
attr_reader :id
def initialize(id, last_name, first_name, street_address, city, state, accounts = [])
@id = id
@last_name = last_name
@first_name = first_name
@street_address = street_address
@city = city
@state = state
@accounts = accounts #store the owner account ids in an array
end

def self.all(file_path = "./support/owners.csv")
require 'CSV'
all_owners = []
CSV.foreach(file_path, "r") do |line|

their_accounts = []
CSV.foreach("./support/account_owners.csv", "r") do |match|
if match[1].to_s == line[0].to_s #if in the relaitonship file the owner id is equal to the owner
their_accounts << match[0] #send the account id into their_accounts array
end
end

all_owners << self.new(line[0], line[1], line[2], line[3], line[4], line[5], their_accounts)

end
return all_owners
end

def self.find(id)
self.all.each do |owner_inst|
if owner_inst.id.to_s == id.to_s
return owner_inst
end
end
end

# end
end
end