#!/usr/bin/env bellos
# File: control_structures.bellos

# Demonstrating if statements and loops

# If-else statement
echo "If-else statement:"
x=10
if [ $x -gt 5 ]; then
    echo "x is greater than 5"
else
    echo "x is not greater than 5"
fi

# Nested if-else
echo "\nNested if-else:"
y=20
if [ $x -gt 5 ]; then
    if [ $y -gt 15 ]; then
        echo "x is greater than 5 and y is greater than 15"
    else
        echo "x is greater than 5 but y is not greater than 15"
    fi
else
    echo "x is not greater than 5"
fi

# While loop
echo "\nWhile loop:"
counter=0
while [ $counter -lt 5 ]; do
    echo "Counter: $counter"
    counter=$((counter + 1))
done

# For loop
echo "\nFor loop:"
for i in 1 2 3 4 5; do
    echo "Iteration: $i"
done

# For loop with range
echo "\nFor loop with range:"
for i in $(seq 1 5); do
    echo "Number: $i"
done

# Case statement
echo "\nCase statement:"
fruit="apple"
case $fruit in
    "apple")
        echo "It's an apple"
        ;;
    "banana")
        echo "It's a banana"
        ;;
    "orange")
        echo "It's an orange"
        ;;
    *)
        echo "Unknown fruit"
        ;;
esac