#!/usr/bin/env bash
# Install Z13 Memory Profiles for the current user

set -euo pipefail

SRC_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PREFIX="${PREFIX:-${HOME}/.local}"
INSTALL_DIR="${PREFIX}/share/z13-memory-profiles"
BIN_DIR="${PREFIX}/bin"
APP_DIR="${PREFIX}/share/applications"

echo "==> z13Profiler installer"
echo "    Source: ${SRC_DIR}"
echo "    Target: ${INSTALL_DIR}"

missing=()
for cmd in zenity python3; do
    command -v "${cmd}" >/dev/null 2>&1 || missing+=("${cmd}")
done

if ((${#missing[@]})); then
    echo "Missing dependencies: ${missing[*]}"
    echo "Install with: sudo dnf install ${missing[*]} polkit"
    exit 1
fi

if ! command -v pkexec >/dev/null 2>&1; then
    echo "Note: pkexec not found — GUI apply will fall back to sudo."
    echo "      Recommended: sudo dnf install polkit"
fi

mkdir -p "${INSTALL_DIR}" "${BIN_DIR}" "${APP_DIR}"

rsync -a --delete \
    --exclude='.git' \
    --exclude='*.tar.gz' \
    --exclude='package.sh' \
    "${SRC_DIR}/" "${INSTALL_DIR}/"

chmod +x "${INSTALL_DIR}/bin/z13-memory-profiles"
chmod +x "${INSTALL_DIR}/install.sh" 2>/dev/null || true

ln -sf "${INSTALL_DIR}/bin/z13-memory-profiles" "${BIN_DIR}/z13-memory-profiles"
ln -sf "${INSTALL_DIR}/bin/z13-memory-profiles" "${BIN_DIR}/z13profiler"

cat > "${APP_DIR}/z13-memory-profiles.desktop" <<EOF
[Desktop Entry]
Version=1.0
Type=Application
Name=Z13 Memory Profiles
GenericName=Unified Memory Settings
Comment=Switch gaming and LLM RAM profiles on ROG Flow Z13 (GZ302)
Exec=${BIN_DIR}/z13-memory-profiles
Icon=preferences-system-memory
Terminal=false
Categories=System;Settings;
Keywords=VRAM;UMA;TTM;memory;Strix;Halo;GZ302;
StartupNotify=true
EOF

echo ""
echo "Installed."
echo "  Command:  z13-memory-profiles  (alias: z13profiler)"
echo "  Menu:     Z13 Memory Profiles"
echo ""
echo "Optional (recommended for LLM): pipx install amd-debug-tools"
echo ""
echo "First run:"
echo "  z13-memory-profiles --status"
echo "  z13-memory-profiles"