#!/usr/bin/env bash

#

# Init the environment for new user.

set -eu

# CLI Dependencies

CLI=("git" "npm")

ACTIONS_WORKFLOW=pages-deploy.yml

# temporary file suffixes that make `sed -i` compatible with BSD and Linux

TEMP_SUFFIX="to-delete"

_no_gh=false

help() {

echo "Usage:"

echo

echo " bash /path/to/init.sh [options]"

echo

echo "Options:"

echo " --no-gh Do not deploy to Github."

echo " -h, --help Print this help information."

}

# BSD and GNU compatible sed

_sedi() {

regex=$1

file=$2

sed -i.$TEMP_SUFFIX "$regex" "$file"

rm -f "$file".$TEMP_SUFFIX

}

_check_cli() {

for i in "${!CLI[@]}"; do

cli="${CLI[$i]}"

if ! command -v "$cli" &>/dev/null; then

echo "Command '$cli' not found! Hint: you should install it."

exit 1

fi

done

}

_check_status() {

if [[ -n $(git status . -s) ]]; then

echo "Error: Commit unstaged files first, and then run this tool again."

exit 1

fi

}

_check_init() {

local _has_inited=false

if [[ ! -d .github ]]; then # using option `--no-gh`

_has_inited=true

else

if [[ -f .github/workflows/$ACTIONS_WORKFLOW ]]; then

# on BSD, the `wc` could contains blank

local _count

_count=$(find .github/workflows/ -type f -name "*.yml" | wc -l)

if [[ ${_count//[[:blank:]]/} == 1 ]]; then

_has_inited=true

fi

fi

fi

if $_has_inited; then

echo "Already initialized."

exit 0

fi

}

check_env() {

_check_cli

_check_status

_check_init

}

checkout_latest_release() {

hash=$(git log --grep="chore(release):" -1 --pretty="%H")

git reset --hard "$hash"

}

init_files() {

if $_no_gh; then

rm -rf .github

else

## Change the files of `.github`

mv .github/workflows/$ACTIONS_WORKFLOW.hook .

rm -rf .github

mkdir -p .github/workflows

mv ./${ACTIONS_WORKFLOW}.hook .github/workflows/${ACTIONS_WORKFLOW}

## Cleanup image settings in site config

_sedi "s/^img_cdn:.*/img_cdn:/;s/^avatar:.*/avatar:/" _config.yml

fi

# remove the other files

rm -rf _posts/*

# build assets

npm i && npm run build

# track the js output

_sedi "/^assets.*\/dist/d" .gitignore

}

commit() {

git add -A

git commit -m "chore: initialize the environment" -q

echo -e "\n[INFO] Initialization successful!\n"

}

main() {

check_env

checkout_latest_release

init_files

commit

}

while (($#)); do

opt="$1"

case $opt in

--no-gh)

_no_gh=true

shift

;;

-h | --help)

help

exit 0

;;

*)

# unknown option

help

exit 1

;;

esac

done

main