#!/bin/sh

# --- 1. Konfiguration ---
GITEA_RAW="https://git.ungruhe.info/Tim/dotfiles/raw/branch/main"

echo "🔍 Scanne System-Umgebung..."

# --- 2. Erweiterte System-Erkennung (Inkl. Termux) ---
if [ -d "/data/data/com.termux/files/usr" ]; then
    SPECIFIC_ID="termux"
    BASE_ID="android"
    BIN_PATH="/data/data/com.termux/files/usr/bin"
elif [ -f /etc/os-release ]; then
    . /etc/os-release
    SPECIFIC_ID=$ID
    # Nutzt ID_LIKE, falls vorhanden, sonst Fallback auf ID
    BASE_ID=${ID_LIKE:-$ID}
    BIN_PATH="/usr/bin"
else
    SPECIFIC_ID="unknown"
    BASE_ID="unknown"
    BIN_PATH="/usr/bin"
fi

# --- 3. Pakete installieren ---
echo "📦 Installiere Voraussetzungen für $SPECIFIC_ID..."

# Sudo Logik (Termux braucht kein Sudo, root auch nicht)
if command -v sudo >/dev/null 2>&1 && [ "$SPECIFIC_ID" != "termux" ] && [ "$(id -u)" -ne 0 ]; then
    S="sudo"
else
    S=""
fi

case "$SPECIFIC_ID" in
    termux)
        pkg update && pkg install -y zsh curl git neovim fastfetch eza ncurses-utils ;;
    *arch*|*cachyos*)
        $S pacman -Syu --needed --noconfirm zsh curl git neovim fastfetch eza shadow ;;
    *debian*|*ubuntu*|*trixie*)
        $S apt-get update && $S apt-get install -y zsh curl git neovim fastfetch eza ;;
    *alpine*)
        $S apk add zsh curl git neovim fastfetch eza shadow ncurses-terminfo-base ;;
    *fedora*)
        # Fedora hat eza und fastfetch direkt in den offiziellen Repos
        $S dnf check-update -y
        $S dnf install -y zsh curl git neovim fastfetch eza util-linux-user ;;
    *alma*|*rocky*|*rhel*|*centos*)
        # Enterprise Linux benötigt EPEL für fastfetch/eza
        $S dnf install -y epel-release
        $S dnf check-update -y
        $S dnf install -y zsh curl git neovim fastfetch eza util-linux-user ;;
esac

# --- 4. Verzeichnisse erstellen ---
mkdir -p "$HOME/.config/nvim" "$HOME/.config/fastfetch"

# --- 5. .zshrc mit Fallback laden ---
echo "📥 Lade ZSH-Konfiguration..."
SUCCESS=0

# Da ID_LIKE mehrere Werte enthalten kann (wie "rhel centos fedora"), 
# loopen wir sauber durch alle Wörter in BASE_ID
for TARGET in "$SPECIFIC_ID" $BASE_ID "default"; do
    if [ -n "$TARGET" ] && [ "$SUCCESS" -eq 0 ]; then
        if curl -fsSL "${GITEA_RAW}/${TARGET}.zshrc" -o "$HOME/.zshrc"; then
            echo "✅ Erfolg mit ${TARGET}.zshrc"
            SUCCESS=1
        fi
    fi
done

# --- 6. Restliche Configs ---
curl -fsSL "${GITEA_RAW}/.config/fastfetch/fastfetch.jsonc" -o "$HOME/.config/fastfetch/fastfetch.jsonc"
curl -fsSL "${GITEA_RAW}/.config/nvim/init.lua" -o "$HOME/.config/nvim/init.lua"

# --- 7. Shell-Wechsel ---
if [ "$SPECIFIC_ID" = "termux" ]; then
    chsh -s zsh >/dev/null 2>&1
else
    if [ "$SHELL" != "$(command -v zsh)" ]; then
        $S chsh -s "$(command -v zsh)" "$(whoami)"
    fi
fi

echo "🚀 Setup abgeschlossen! Starte ZSH neu..."