#!/usr/bin/env bash

# gstack-config — read/write ~/.gstack/config.yaml

#

# Usage:

# gstack-config get <key> — read a config value

# gstack-config set <key> <value> — write a config value

# gstack-config list — show all config

#

# Env overrides (for testing):

# GSTACK_STATE_DIR — override ~/.gstack state directory

set -euo pipefail

STATE_DIR="${GSTACK_STATE_DIR:-$HOME/.gstack}"

CONFIG_FILE="$STATE_DIR/config.yaml"

case "${1:-}" in

get)

KEY="${2:?Usage: gstack-config get <key>}"

grep -E "^${KEY}:" "$CONFIG_FILE" 2>/dev/null | tail -1 | awk '{print $2}' | tr -d '[:space:]' || true

;;

set)

KEY="${2:?Usage: gstack-config set <key> <value>}"

VALUE="${3:?Usage: gstack-config set <key> <value>}"

mkdir -p "$STATE_DIR"

if grep -qE "^${KEY}:" "$CONFIG_FILE" 2>/dev/null; then

sed -i '' "s/^${KEY}:.*/${KEY}: ${VALUE}/" "$CONFIG_FILE"

else

echo "${KEY}: ${VALUE}" >> "$CONFIG_FILE"

fi

;;

list)

cat "$CONFIG_FILE" 2>/dev/null || true

;;

*)

echo "Usage: gstack-config {get|set|list} [key] [value]"

exit 1

;;

esac