#!/bin/bash

# --- 1. Deine individuellen Datei-URLs ---
URL_NVIM_INIT="http://DEIN_GITEA/init.lua"
URL_FASTFETCH="http://DEIN_GITEA/fastfetch.jsonc"

echo "🔍 Scanne System für maßgeschneidertes Setup..."

# --- 2. System-Erkennung ---
if [ -f /etc/os-release ]; then
    . /etc/os-release
    OS_ID=$ID
    OS_LIKE=$ID_LIKE
elif [[ "$OSTYPE" == "darwin"* ]]; then
    OS_ID="macos"
else
    OS_ID="unknown"
fi

# --- 3. Intelligente Paket-Installation ---
echo "📦 Installiere Pakete für: $OS_ID..."
SUDO=""
command -v sudo >/dev/null && SUDO="sudo"

case "$OS_ID" in
    arch|cachyos)
        $SUDO pacman -Syu --needed --noconfirm zsh curl git neovim fastfetch eza shadow ;;
    debian|ubuntu|trixie|kali)
        $SUDO apt update && $SUDO apt install -y zsh curl git neovim fastfetch eza ;;
    alpine)
        $SUDO apk add zsh curl git neovim fastfetch eza shadow ncurses-terminfo-base ;;
    *)
        echo "⚠️ System $OS_ID nicht explizit unterstützt, versuche Standard-ZSH..."
        $SUDO apt install -y zsh curl || echo "Installation fehlgeschlagen." ;;
esac

# --- 4. Verzeichnisse & Config-Downloads ---
mkdir -p ~/.config/nvim ~/.config/fastfetch
curl -fsSL "$URL_NVIM_INIT" -o ~/.config/nvim/init.lua
curl -fsSL "$URL_FASTFETCH" -o ~/.config/fastfetch/fastfetch.jsonc

# --- 5. Die dynamische .zshrc Erstellung ---
echo "📝 Generiere optimierte .zshrc für $OS_ID..."

cat <<EOF > ~/.zshrc
# --- Automatisch generiert am $(date) ---
OS_ID="$OS_ID"
OS_LIKE="$OS_LIKE"

# Basis-Plugins & Theme (Zinit)
ZINIT_HOME="\${XDG_DATA_HOME:-\${HOME}/.local/share}/zinit/zinit.git"
[ ! -d "\$ZINIT_HOME" ] && mkdir -p "\$(dirname \$ZINIT_HOME)" && git clone https://github.com/zdharma-continuum/zinit.git "\$ZINIT_HOME"
source "\${ZINIT_HOME}/zinit.zsh"

zinit ice depth=1; zinit light romkatv/powerlevel10k
zinit light zsh-users/zsh-syntax-highlighting
zinit light zsh-users/zsh-autosuggestions

# Fastfetch Start
(( \$+commands[fastfetch] )) && fastfetch --config ~/.config/fastfetch/fastfetch.jsonc

# --- System-spezifische Aliases ---
alias l='eza -lagh --icons --group-directories-first'
alias c='clear'
alias x='exit'

EOF

# --- 6. Effiziente Update-Logik einfügen ---
# Hier wird nur der Code eingefügt, den das aktuelle System wirklich braucht!
case "$OS_ID" in
    arch|cachyos)
        cat <<'EOF' >> ~/.zshrc
update_system() {
    echo "--- Arch Update ---"
    if (( $+commands[yay] )); then yay -Syu --noconfirm; else sudo pacman -Syu --noconfirm; fi
    sudo pacman -Rns $(pacman -Qdtq) --noconfirm 2>/dev/null
}
EOF
        ;;
    debian|ubuntu|trixie|kali)
        cat <<'EOF' >> ~/.zshrc
update_system() {
    echo "--- Debian/APT Update ---"
    sudo apt update && sudo apt upgrade -y && sudo apt autoremove -y
}
EOF
        ;;
    alpine)
        cat <<'EOF' >> ~/.zshrc
update_system() {
    echo "--- Alpine Update ---"
    sudo apk update && sudo apk upgrade
}
EOF
        ;;
esac

echo "alias u='update_system'" >> ~/.zshrc

# --- 7. Finale & Start ---
echo "✅ Setup fertig. Wechsel zu ZSH..."
exec zsh -l