echk

#!/usr/bin/env bash

# echk: functions to display shell error code

echk_color() {
    # set color depending on if the last command succeed or not
    if [[ $? -eq 0 ]]; then
        echo -ne "\033[0;32m"
        return 0
    else
        echo -ne "\033[0;31m"
        # need to return a value so that the other functions here will
        # know if last command ran OK or not, the previous code will return 0
        return 1 # TODO $?
    fi
}

echk_color_simple() {
    if [[ $? -eq 0 ]]; then
        return 0
    else
        echo -ne "\033[0;31m"
        return 1
    fi
}

echk_char() {
    if [[ $? -eq 0 ]]; then
        echo "$1"
    else
        echo "$2"
    fi
}

echk_check() {
    echk_char "✓" "✗ "
}

echk_face() {
    echk_char ":)" ":("
}

echk_random_face() {
    # set arrays for different faces to randomly choose from
    if [[ $? -eq 0 ]]; then
        local faces=(":)" ":D")
    else
        local faces=(":P" ":(" ":/" ":O" ":\\" ":|" ":(" ":(")
    fi

    echo ${faces[$((RANDOM % ${#faces[*]}))]} # randomly choose an array element
}