#!/usr/bin/env bash
# One-time restructure of the single-loader NeoForge tree into the Architectury
# multiloader layout. Run once from the repo root on the `multiloader` branch:
#   bash migrate-to-multiloader.sh
# It only MOVES the loader/version-agnostic code (config, gif, client, mixins)
# into common/, and the NeoForge metadata into neoforge/. The changed files
# (generic commands, per-loader entrypoints, mod metadata) are added separately.
set -euo pipefail
cd "$(dirname "$0")"

if [[ ! -e src/main/java/xyz/nightsync/skinsg/SkinsgConfig.java ]]; then
  echo "Migration already applied; src/ is not present."
  exit 0
fi

CJ=common/src/main/java/xyz/nightsync/skinsg
CR=common/src/main/resources
mkdir -p "$CJ" "$CR" neoforge/src/main/resources/META-INF

# --- loader/version-agnostic core -> common ---
git mv src/main/java/xyz/nightsync/skinsg/SkinsgConfig.java "$CJ"/
git mv src/main/java/xyz/nightsync/skinsg/gif            "$CJ"/
git mv src/main/java/xyz/nightsync/skinsg/client         "$CJ"/
git mv src/main/java/xyz/nightsync/skinsg/mixin          "$CJ"/
git mv src/main/resources/skinsg.mixins.json            "$CR"/

# --- superseded / rewritten: generic commands, per-loader entrypoints + fresh metadata ---
git rm src/main/java/xyz/nightsync/skinsg/commands/SkinsgCommands.java
git rm src/main/java/xyz/nightsync/skinsg/SkinsgMod.java
git rm src/main/resources/META-INF/neoforge.mods.toml

# clean up now-empty old source roots
rm -rf src

echo "Migration done. Now add the new files (SkinsgCommands generic, SkinsgClient,"
echo "per-loader entrypoints + metadata) — see MULTILOADER.md — then ./gradlew build."