Hi! My name is Thiago L. and this is my solution for the VIN exercise.

I liked a lot to learn about VINs and the meaning of each part of it when we decompose; I wasn't sure if I should make suggestions of correct VINs using the NHTSA API or if I should come up with my own logic to it... So the resulting code is kind of a mix between both!

To run the script, just execute ruby vin_script.rb VIN on terminal and replace VIN with a real one.

• If the input has less than 17 characters, just display a message and exit.
• If the check digit is valid: Output a message and try to bring attributes for the vehicle from the NHTSA API
• If the VIN has invalid characters: Output a message and try to bring possible values for invalid characters from the NHTSA API.
• If check digit is invalid: Output a message, suggest a VIN with the correct check digit along with other variations of it, by replacing from the 10º to 17º characters with chars with same transliterated values. Also, make a request to the NHTSA API and display any possible values coming from there.

I also fixed what I thought was an error on the initial code: on the calculate_check_digit we have a mapping to check digits as map = [0,1,2,3,4,5,6,7,9,10,'X'] but on real scenarios we can't have 10 as a check digit... instead, when the remaining value is 10, the check is X. So I just replaced that line with map = [0,1,2,3,4,5,6,7,9,'X'].

There's a file on this same repo called bonus_activity.txt with answers to bonus activity's questions. As a demonstration of vehicle attributes suggestions, I also implemented that on code, in case check digit is valid.