#!/bin/bash
# detect-engine.sh - Detecta el motor de una novela visual según su estructura
# Uso: detect-engine.sh <ruta_proyecto>
# Salida: renpy | unity | web | onscripter | unknown

PROJECT="${1:-}"

if [ -z "$PROJECT" ] || [ ! -d "$PROJECT" ]; then
    echo "unknown"
    exit 1
fi

# Ren'Py: tiene project.json o game/script.rpy
if [ -f "$PROJECT/project.json" ] || [ -f "$PROJECT/game/script.rpy" ]; then
    echo "renpy"
    exit 0
fi

# ONScripter: script 0.txt/nscript.dat, ons.cfg o ejecutable onscripter
if [ -f "$PROJECT/0.txt" ] || [ -f "$PROJECT/nscript.dat" ] || [ -f "$PROJECT/ons.cfg" ] || [ -f "$PROJECT/onscripter-ru.exe" ] || [ -f "$PROJECT/onscripter.exe" ]; then
    echo "onscripter"
    exit 0
fi

# Unity WebGL: estructura típica
if [ -d "$PROJECT/Build" ] && [ -d "$PROJECT/TemplateData" ] && [ -f "$PROJECT/index.html" ]; then
    echo "unity"
    exit 0
fi

# Web genérico: solo necesita index.html
if [ -f "$PROJECT/index.html" ]; then
    echo "web"
    exit 0
fi

echo "unknown"
exit 1