#!/usr/bin/env bash
# ejemplo_uso_avanzado.sh
# Demuestra diferentes casos de uso de topdir.sh

set -e

TOPDIR="./topdir.sh"
DEMO_DIR="./demo_avanzado"

echo "=== Limpiando demo anterior ==="
rm -rf "$DEMO_DIR"
mkdir -p "$DEMO_DIR"/{src,tests,docs,logs,build}

echo ""
echo "=== 1. Creando estructura inicial ==="
cat > "$DEMO_DIR/src/main.py" <<EOF
def main():
    print("Hello World")
EOF

cat > "$DEMO_DIR/tests/test_main.py" <<EOF
def test_main():
    assert True
EOF

echo "Documentation" > "$DEMO_DIR/docs/README.md"
echo "Build output" > "$DEMO_DIR/build/output.so"
echo "Log entry" > "$DEMO_DIR/logs/app.log"

echo ""
echo "=== 2. Primera ejecución - Crear snapshot (formato texto) ==="
$TOPDIR "$DEMO_DIR"

echo ""
echo "=== 3. Modificar archivos y añadir nuevos ==="
cat >> "$DEMO_DIR/src/main.py" <<EOF

def helper():
    return 42
EOF

cat > "$DEMO_DIR/src/utils.py" <<EOF
def util_func():
    pass
EOF

echo "More logs" >> "$DEMO_DIR/logs/app.log"
echo "More build" >> "$DEMO_DIR/build/output.so"

echo ""
echo "=== 4. Segunda ejecución - Ver cambios (formato texto) ==="
$TOPDIR "$DEMO_DIR"

echo ""
echo "=== 5. Usar snapshot personalizado con formato JSON ==="
$TOPDIR --snapshot-file /tmp/demo.snapshot --format json "$DEMO_DIR" | jq '.'

echo ""
echo "=== 6. Crear .topdirignore para excluir logs y build ==="
cat > "$DEMO_DIR/.topdirignore" <<EOF
logs/*
build/*
*.log
*.so
EOF

echo ""
echo "=== 7. Ejecutar con exclusiones (formato CSV) ==="
$TOPDIR --format csv "$DEMO_DIR"

echo ""
echo "=== 8. Usar diferentes algoritmos de hash ==="
echo "Snapshot con MD5:"
$TOPDIR --hash md5 --snapshot-file /tmp/demo_md5.snap "$DEMO_DIR"

echo ""
echo "Añadir un archivo nuevo:"
echo "New content" > "$DEMO_DIR/src/new_file.py"

echo ""
echo "Detectar con MD5 + JSON:"
$TOPDIR --hash md5 --snapshot-file /tmp/demo_md5.snap --format json "$DEMO_DIR" | jq '.new'

echo ""
echo "=== 9. Exclusiones múltiples por CLI ==="
echo "Test file" > "$DEMO_DIR/tests/test_new.py"
echo "Temp file" > "$DEMO_DIR/temp.tmp"
echo "Cache file" > "$DEMO_DIR/.cache"

$TOPDIR --exclude "*.tmp" --exclude ".*" --exclude "tests/*" --format csv "$DEMO_DIR"

echo ""
echo "=== 10. Comparación completa con todas las opciones ==="
$TOPDIR \
  --hash sha1 \
  --format json \
  --exclude "logs/*" \
  --exclude "build/*" \
  --snapshot-file /tmp/demo_final.snap \
  "$DEMO_DIR" | jq '{
    total_new: (.new | length),
    total_modified: (.modified | length),
    total_deleted: (.deleted | length),
    files: {
      new: .new,
      modified: .modified,
      deleted: .deleted
    }
  }'

echo ""
echo "=== Demo completada ==="
echo "Archivos de snapshot creados:"
ls -lh /tmp/demo*.snap 2>/dev/null || echo "  (ninguno en /tmp)"
echo ""
echo "Estructura final de $DEMO_DIR:"
tree "$DEMO_DIR" 2>/dev/null || find "$DEMO_DIR" -type f