#!/bin/sh

set -e

reset="\033[0m"
red="\033[31m"
green="\033[32m"
yellow="\033[33m"
cyan="\033[36m"
white="\033[37m"

printf "\n$yellow Installing Nitric!$reset\n\n"

VERSION=latest

# Detect platform
if [[ $OSTYPE == "linux"* ]]; then
  PLATFORM="Linux"
elif [[ $OSTYPE == "darwin"* ]]; then
  PLATFORM="macOS"
else
  printf "$red Sorry, there's no Nitric binary installer available for this platform. Please open request for it at https://github.com/nitrictech/cli/issues.$reset\n"
  exit 1
fi

# Detect architecture
MACHINE_TYPE=`uname -m`
if [[ $MACHINE_TYPE == "x86_64" ]]; then
  ARCH='x86_64'
elif [[ $MACHINE_TYPE == "arm64" ]]; then
  ARCH='arm64'
else
  printf "$red Sorry, there's no Nitric installer available for $MACHINE_TYPE architecture. If you'd like one you're welcome to request it at https://github.com/nitrictech/cli/issues.$reset\n"
  exit 1
fi

if [[ $VERSION == "latest" ]]; then
  LATEST_TAG=`curl -L --silent https://api.github.com/repos/nitrictech/cli/releases/latest 2>&1 | grep 'tag_name' | grep -oE "v[0-9]+\.[0-9]+\.[0-9]+"`
  VERSION="${LATEST_TAG:1}"
fi

BINARY_URL=https://github.com/nitrictech/cli/releases/download/v$VERSION/nitric_$VERSION\_$PLATFORM\_$ARCH.tar.gz

# Dowload binary
BINARIES_DIR_PATH=$HOME/.nitric/bin
TAR_PATH=$BINARIES_DIR_PATH/nitric.tar.gz
BINARY_PATH=$BINARIES_DIR_PATH/nitric
mkdir -p $BINARIES_DIR_PATH
printf "$yellow Downloading tarball...$reset\n"

curl -L $BINARY_URL | tar -xz --directory $BINARIES_DIR_PATH
chmod +x $BINARY_PATH

# Add to $PATH
SOURCE_STR="# Added by nitric binary installer\nexport PATH=\"\$HOME/.nitric/bin:\$PATH\"\n"
add_to_path () {
  command printf "\n$SOURCE_STR" >> "$1"
  printf "\n$yellow Added the following to $1:\n\n$SOURCE_STR$reset"
}
SHELLTYPE="$(basename "/$SHELL")"
if [[ $SHELLTYPE = "fish" ]]; then
  command fish -c 'set -U fish_user_paths $fish_user_paths ~/.nitric/bin'
  printf "\n$yellow Added ~/.nitric/bin to fish_user_paths universal variable$reset."
elif [[ $SHELLTYPE = "zsh" ]]; then
  SHELL_CONFIG=$HOME/.zshrc
  if [ ! -r $SHELL_CONFIG ] || (! `grep -q '.nitric/bin' $SHELL_CONFIG`); then
    add_to_path $SHELL_CONFIG
  fi
else
  SHELL_CONFIG=$HOME/.bashrc
  if [ ! -r $SHELL_CONFIG ] || (! `grep -q '.nitric/bin' $SHELL_CONFIG`); then
    add_to_path $SHELL_CONFIG
  fi
  SHELL_CONFIG=$HOME/.bash_profile
  if [[ -r $SHELL_CONFIG ]]; then
    if [[ ! $(grep -q '.nitric/bin' $SHELL_CONFIG) ]]; then
      add_to_path $SHELL_CONFIG
    fi
  else
    SHELL_CONFIG=$HOME/.bash_login
    if [[ -r $SHELL_CONFIG ]]; then
      if [[ ! $(grep -q '.nitric/bin' $SHELL_CONFIG) ]]; then
        add_to_path $SHELL_CONFIG
      fi
    else
      SHELL_CONFIG=$HOME/.profile
      if [ ! -r $SHELL_CONFIG ] || (! `grep -q '.nitric/bin' $SHELL_CONFIG`); then
        add_to_path $SHELL_CONFIG
      fi
    fi
  fi
fi

printf "$green Installed Successfully, run$yellow source $SHELL_CONFIG$green to update PATH or restart your terminal $reset\n"

# TODO: Add post install if necessary
# $HOME/.nitric/bin/nitric binary-postinstall