#!/usr/bin/env bash
# Mechanix + Fabric Setup for Mac / Linux
# Usage: bash mechanix-setup.sh

BASE="https://citrohub.com"
VID="fabric-loader-0.15.11-1.20.4"

# Detect OS and set .minecraft path
if [[ "$OSTYPE" == "darwin"* ]]; then
  MCDIR="$HOME/Library/Application Support/minecraft"
else
  MCDIR="$HOME/.minecraft"
fi

echo ""
echo "=== Mechanix Installer for Mac / Linux ==="
echo "Minecraft dir: $MCDIR"
echo ""

# 1 — Create version profile directory
VERDIR="$MCDIR/versions/$VID"
mkdir -p "$VERDIR"

# 2 — Download Fabric loader profile JSON
echo "[1/4] Downloading Fabric loader profile..."
curl -fsSL "$BASE/fabric-loader-profile.json" -o "$VERDIR/$VID.json"

# 3 — Create mods folder and download mods
echo "[2/4] Creating mods folder..."
mkdir -p "$MCDIR/mods"

echo "[3/4] Downloading Fabric API + Mechanix..."
curl -fsSL "$BASE/fabric-api.jar" -o "$MCDIR/mods/fabric-api-0.96.0+1.20.4.jar"
curl -fsSL "$BASE/mechanix.jar"   -o "$MCDIR/mods/mechanix-1.0.0.jar"

# 4 — Add Fabric profile to launcher_profiles.json
echo "[4/4] Registering Fabric profile in Minecraft Launcher..."
PROFILES="$MCDIR/launcher_profiles.json"
if [ -f "$PROFILES" ]; then
  NOW=$(date -u +"%Y-%m-%dT%H:%M:%S.000Z")
  python3 - <<PYEOF
import json, sys
path = "$PROFILES"
vid  = "$VID"
now  = "$NOW"
with open(path) as f:
    data = json.load(f)
data.setdefault("profiles", {})["mechanix-fabric"] = {
    "created":       now,
    "icon":          "Crafting_Table",
    "lastUsed":      now,
    "lastVersionId": vid,
    "name":          "Mechanix (Fabric 1.20.4)",
    "type":          "custom"
}
with open(path, "w") as f:
    json.dump(data, f, indent=2)
print("    Profile added!")
PYEOF
else
  echo "    launcher_profiles.json not found."
  echo "    Open the Minecraft Launcher once, close it, then re-run this script."
fi

echo ""
echo "=== Done! ==="
echo "Open the Minecraft Launcher, select 'Mechanix (Fabric 1.20.4)' from the profile"
echo "dropdown in the bottom-left corner, and click Play."
echo ""