state_info

@states = {
  OR: 'Oregon',
  FL: 'Florida',
  CA: 'California',
  NY: 'New York',
  MI: 'Michigan'
}

@states[:NC] = 'North Carolina'
@states[:CO] = 'Colorado'

@cities = {
  FL: ['Miami', 'Orlando'],
  CA: ['LA', 'SF'],
  NY: ['New York', 'Buffalo'],
  MI: ['Detroit', 'Grand Rapids']
}

@state_tax = { 
  FL: 0.03,
  CA: 0.03,
  NY: 0.03,
  MI: 0.03
}

def describe_state(code) 
  code = code.to_sym #input = string 
  if code.length < 2 or code.length > 2 
    "please input a valid state code"
  elsif @states[code].nil? or @cities[code].nil?
    "#{code} is not a valid State Code!"
  else
    "#{code} stands for #{@states[code]}. It has #{@cities[code].length} major cities: #{@cities[code].join(', ')}"
  end 
end

def calculate_tax(code, amount)
  code = code.to_sym 
  "In #{@states[code]} $#{amount} after #{@state_tax[code]}% taxes are $#{(1 +@state_tax[code]) * (amount)}"
end 

def find_state_for_city (city)
  state = ''
  @cities.each do |k,v| 
    if v.include? city 
      state = @states[k]
      "#{city} is in #{state}"
    end 
  end 
end 

puts describe_state('FL')
puts calculate_tax('FL',10)
puts find_state_for_city ('Miami')