#!/bin/bash

declare subcommand="$1"; shift
declare -r gold=$'\033[38;2;250;130;10m'
declare -r cyan=$'\033[38;2;0;255;255m'
declare -r reset=$'\033[0m'

ziplink () {
  if [[ -z "$1" ]]; then
    echo "usage: gh ziplink <account>/<repo>"
  fi
  curl -s "https://api.github.com/repos/$1/releases/latest" |jq -r .zipball_url
}

zipball () {
  if [[ -z "$1" ]]; then
    echo "usage: gh zipball <account>/<repo>"
  fi
  declare link=$(ziplink "$1")
  declare file=${1##*/}.${link##*/}.zip
  echo "${gold}Downloading ${cyan}$link$reset -> ${cyan}$file$reset"
  curl -s -L "$link" -o "$file"
}

declare -a commands=(ziplink zipball)

for i in ${commands[@]}; do
  if [[ $i == "$subcommand" ]]; then
    "$subcommand" $*
    exit 0
  fi
done

######################### Tab Completion Context ########################

# remember COMP_LINE is changed by shift
if [ -n "$COMP_LINE" ]; then
  for cmd in ${commands[@]}; do 
    [[ "${cmd:0:${#1}}" == "$1" ]] && echo $cmd
  done
  exit 0
fi