#!/usr/bin/env bash
# ============================================================================
# Trixy Installer — Bootstrap-Script
#
# Entpackt den Installer, erstellt ein temporaeres venv und startet die TUI.
# ============================================================================

set -euo pipefail

# --- Eingebettete Werte ---
MODE="server"
VERSION="1.0.0"
SOURCE_TAR="trixy-server-1.0.0.tar.gz"
INSTALLER_TAR="trixy-installer-server-1.0.0.tar.gz"

# --- Farben ---
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
TEMP_DIR=""

cleanup() {
    if [[ -n "${TEMP_DIR}" && -d "${TEMP_DIR}" ]]; then
        echo -e "${YELLOW}Raeume auf...${NC}"
        rm -rf "${TEMP_DIR}"
    fi
}
trap cleanup EXIT

echo ""
echo -e "${GREEN}========================================"
echo "  Trixy Installer v${VERSION} [${MODE}]"
echo -e "========================================${NC}"
echo ""

# 1. Pruefe ob tar-Dateien vorhanden
if [[ ! -f "${SCRIPT_DIR}/${SOURCE_TAR}" ]]; then
    echo -e "${RED}FEHLER: ${SOURCE_TAR} nicht gefunden${NC}"
    exit 1
fi

if [[ ! -f "${SCRIPT_DIR}/${INSTALLER_TAR}" ]]; then
    echo -e "${RED}FEHLER: ${INSTALLER_TAR} nicht gefunden${NC}"
    exit 1
fi

# 2. Python >= 3.10 sicherstellen
echo "Pruefe Python-Version..."
PYTHON_BIN=""

for py in python3.12 python3.11 python3.10 python3; do
    if command -v "${py}" >/dev/null 2>&1; then
        py_minor=$("${py}" -c "import sys; print(sys.version_info.minor)")
        if [[ "${py_minor}" -ge 10 ]]; then
            PYTHON_BIN="${py}"
            break
        fi
    fi
done

if [[ -z "${PYTHON_BIN}" ]]; then
    echo -e "${YELLOW}Python >= 3.10 nicht gefunden. Versuche Installation...${NC}"
    if command -v apt-get >/dev/null 2>&1; then
        sudo apt-get update -qq
        sudo apt-get install -y -qq python3 python3-venv python3-pip
        PYTHON_BIN="python3"
    else
        echo -e "${RED}FEHLER: Python >= 3.10 wird benoetigt${NC}"
        exit 1
    fi
fi

echo "  Verwende: ${PYTHON_BIN} ($(${PYTHON_BIN} --version 2>&1))"

# 3. Installer-tar in temp-Verzeichnis entpacken
TEMP_DIR="$(mktemp -d)"
echo "Entpacke Installer nach ${TEMP_DIR}..."
tar xzf "${SCRIPT_DIR}/${INSTALLER_TAR}" -C "${TEMP_DIR}"

# 4. Installer-venv erstellen
INST_VENV="${TEMP_DIR}/installer-venv"
echo "Erstelle Installer-venv..."
"${PYTHON_BIN}" -m venv "${INST_VENV}"
"${INST_VENV}/bin/pip" install --upgrade pip -q 2>/dev/null
"${INST_VENV}/bin/pip" install -r "${TEMP_DIR}/trixy_installer/requirements.txt" -q

# 5. TUI starten
echo ""
echo -e "${GREEN}Starte Installer-TUI...${NC}"
echo ""

PYTHONPATH="${TEMP_DIR}" "${INST_VENV}/bin/python" -m trixy_installer \
    --mode "${MODE}" \
    --version "${VERSION}" \
    --source-archive "${SCRIPT_DIR}/${SOURCE_TAR}"

echo ""
echo -e "${GREEN}Installer beendet.${NC}"