#!/usr/bin/env bash

# Adapted from https://github.com/ThePrimeagen/dev/blob/master/run
#
# Runs scripts in the `./runs` directory, which will install or uninstall
# packages.  It either runs a single script given an argument (filename in runs)
# or all scripts in the runs directory.
#

if [ -z "$DEV_ENV" ]; then
	echo "env var DEV_ENV needs to be present"
	exit 1
fi

# if i just did DEV_ENV=$(pwd) ./run then this is needed for the rest of the
# scripts
export DEV_ENV="$DEV_ENV"

grep=""
dry_run="0"
uninstall="0"

while [[ $# -gt 0 ]]; do
	echo "ARG: \"$1\""

	# TODO: Fix some of these arguments, should we add a '--grep' option, should '[un]install' be args / not options?
	# Handle a --dry or --dry-run argument
	if [[ "$1" =~ ^--dry ]]; then
		dry_run="1"
	# Handle an --uninstall argument
	elif [[ "$1" =~ ^--u ]]; then
		uninstall="1"
	# Handle an --install argument (default)
	elif [[ ! "$1" =~ ^--i ]]; then
		grep="$1"
	else
		grep="$1"
	fi
	shift
done

# TODO: Setup proper logging using '$SCRIPTS/hypr/logging'
log() {
	if [[ $dry_run == "1" ]]; then
		echo "[DRY_RUN]: $1"
	else
		echo "$1"
	fi
}

# TODO: Remove.
run() {
	local script=$1
	local flag=$2
	log "running script: $script $flag"

	local actual_flags="-S --noconfirm"

	if [[ $flag == "--uninstall" ]]; then
		actual_flags="-Rns"
	fi
	log "ok, here's the actual script:: $s $actual_flags"

	if [[ $dry_run == "0" ]]; then
		$script $actual_flags
	fi

}

install() {
	local file line pkg

	file=${1:-""}
	# Early out if the file is not readable.
	[[ ! -r $file ]] && exit 1

	# Loop over lines in the file and install the packages.
	while read -r line; do
		# Skip lines that begin with '#' (comments)
		if [[ ! $line =~ ^# ]]; then
			# Remove any inline comments.
			pkg=${line%% \#*}
			# TODO: We should log something here??
			[[ $dry_run == "0" ]] && yay -S --noconfirm --needed "$pkg"
		fi
	done <"$file"
}

uninstall() {
	local file line pkg

	file=${1:-""}
	# Early out if the file is not readable.
	[[ ! -r $file ]] && exit 1

	# Loop over lines in the file and uninstall the packages.
	while read -r line; do
		# Skip lines that begin with '#' (comments)
		if [[ ! $line =~ ^# ]]; then
			# Remove any inline comments.
			pkg=${line%% \#*}
			# TODO: We should log something here??
			[[ $dry_run == "0" ]] && yay -Rns "$pkg"
		fi
	done <"$file"
}

############################## MAIN ##############################

log "RUN: -- grep: $grep"

#runs_dir=$(find $DEV_ENV/runs -mindepth 1 -maxdepth 1 -type f) # TODO: keep
runs_dir=$(find $DEV_ENV/runs -mindepth 1 -maxdepth 1 -executable) # TODO: remove.

for s in $runs_dir; do
	if basename $s | grep -vq "$grep"; then
		log "grep \"$grep\" filtered out $s"
		continue
	fi

	if [[ $uninstall == "1" ]]; then
		# TODO: Use function instead.
		run $s --uninstall
	else
		# TODO: Use function instead.
		run $s --install
	fi
done