syntax error near unexpected token value in bash

I'm new to bash and I'm trying to write a script that will prompt the user to select a number, and open the corresponding file. Right now i just wanted to get the options to work properly but I get the error:

./filescript: line 7: syntax error near unexpected token `elif'
./filescript: line 7: `elif [[$server == 2]]'

Anytime I try to make a selection when it's ran. Here's what I have, any advice is appreciated!

#!/bin/bash

echo "Which file would you like to open: "
read input
if [[$input == 1]] then
    echo "This is the first option"
elif [[$input == 2]]
    echo "This is the second option"
else
    echo "Error"
fi