#!/usr/bin/env bash

set -euo pipefail

##? Setups the environment
##?
##? Usage:
##?    installer

DOTLY_REPOSITORY=${DOTLY_REPOSITORY:-CodelyTV/dotly}
DOTLY_BRANCH=${DOTLY_BRANCH:-main}
DOTLY_LOG_FILE=${DOTLY_LOG_FILE:-$HOME/dotly.log}
export DOTLY_ENV=${DOTLY_ENV:-PROD}
export DOTLY_INSTALLER=true

red='\033[0;31m'
green='\033[0;32m'
purple='\033[0;35m'
normal='\033[0m'

_w() {
	local -r text="${1-}"
	echo -e "$text"
}
_a() { _w " > $1"; }
_e() { _a "${red}$1${normal}"; }
_s() { _a "${green}$1${normal}"; }
_q() { read -rp "🤔 $1: " "$2"; }

_log() {
	log_name="$1"
	current_date=$(date "+%Y-%m-%d %H:%M:%S")

	touch "$DOTLY_LOG_FILE"
	echo "----- $current_date - $log_name -----" >>"$DOTLY_LOG_FILE"

	while IFS= read -r log_message; do
		echo "$log_message" >>"$DOTLY_LOG_FILE"
	done

	echo "" >>"$DOTLY_LOG_FILE"
}

current_timestamp() { date +%s; }

create_dotfiles_dir() {
	if [ -d "$1" ]; then
		local -r backup_path="$1.$(current_timestamp).back"

		_e "The path '$1' already exist"
		_s "Creating a backup in '$backup_path'"

		mv "$1" "$backup_path"
	else
		_a "Ok! dotfiles will be located in: ${purple}$DOTFILES_PATH${normal}"
	fi

	mkdir -p "$1"
}

command_exists() {
	type "$1" >/dev/null 2>&1
}

_w "  ┌────────────────────────────────────┐"
_w "~ │ 🚀 Welcome to the ${green}dotly${normal} installer! │ ~"
_w "  └────────────────────────────────────┘"
_w
_q "Where do you want your dotfiles to be located? (default ~/.dotfiles)" "DOTFILES_PATH"
DOTFILES_PATH="${DOTFILES_PATH:-$HOME/.dotfiles}"
DOTFILES_PATH="$(eval echo "$DOTFILES_PATH")"
export DOTFILES_PATH="$DOTFILES_PATH"

dotly_inner_path="modules/dotly"
export DOTLY_PATH="$DOTFILES_PATH/$dotly_inner_path"

create_dotfiles_dir "$DOTFILES_PATH"
cd "$DOTFILES_PATH"

if ! command_exists git; then
	_e "git not installed, trying to install"

	if command_exists apt; then
		_a "Installing using apt"
		sudo apt -y install git 2>&1 | _log "Installing git"
	elif command_exists dnf; then
		_a "Installing using dnf"
		sudo dnf -y install git 2>&1 | _log "Installing git"
	elif command_exists yum; then
		_a "Installing using yum"
		yes | sudo yum install git 2>&1 | _log "Installing git"
	elif command_exists brew; then
		_a "Installing using brew"
		yes | brew install git 2>&1 | _log "Installing git"
	elif command_exists pacman; then
		_a "Installing using pacman"
		sudo pacman -S --noconfirm git 2>&1 | _log "Installing git"
	else
		case "$OSTYPE" in
		darwin*)
			_a "Checking if Command Line Tools are installed 🕵️‍♂️"

			xcode-select --install 2>&1 | grep installed >/dev/null
			if [[ $? ]]; then
				_a "Installing Command Line Tools 📺"
				xcode-select --install
				_q "Press a key after command line tools has finished to continue...👇" "CLT_INSTALLED"
			fi
			;;
		*)
			_e "Could not install git, no package provider found"
			exit 1
			;;
		esac
	fi
fi

if ! command_exists curl; then
	_e "curl not installed, trying to install"

	if command_exists apt; then
		_a "Installing using apt"
		sudo apt -y install curl 2>&1 | _log "Installing curl"
	elif command_exists dnf; then
		_a "Installing using dnf"
		sudo dnf -y install curl 2>&1 | _log "Installing curl"
	elif command_exists yum; then
		_a "Installing using yum"
		yes | sudo yum install curl 2>&1 | _log "Installing curl"
	elif command_exists brew; then
		_a "Installing using brew"
		yes | brew install curl 2>&1 | _log "Installing curl"
	elif command_exists pacman; then
		_a "Installing using pacman"
		sudo pacman -S --noconfirm curl 2>&1 | _log "Installing curl"
	else
		_e "Could not install curl, no package provider found"
		exit 1
	fi
fi

_a "Initializing your dotfiles git repository"
git init 2>&1 | _log "Initializing repository"

_a "Cloning dotly"
git submodule add -b "$DOTLY_BRANCH" "https://github.com/$DOTLY_REPOSITORY.git" "$dotly_inner_path" 2>&1 | _log "Adding dotly submodule"

_a "Installing dotly dependencies"
git submodule update --init --recursive 2>&1 | _log "Installing dotly dependencies"

cd "$DOTLY_PATH"

"$PWD/bin/dot" self install

_a "🎉 dotly installed correctly! 🎉"
_a "Please, restart your terminal to see the changes"