#!/bin/bash
#
# Get FoundryVTT version information
# Usage: get_foundry_version.sh [--version-only]
#        --version-only: just print the latest stable version and exit
#

set -euo pipefail

# Fetch releases page and find latest stable
get_stable_version() {
    local releases_page
    releases_page=$(curl -fsSL "https://foundryvtt.com/releases/" 2>/dev/null || true)
    
    if [[ -z "$releases_page" ]]; then
        echo "" 
        return 1
    fi
    
    # Find stable releases - look for version in entries with "stable" tag
    # The HTML has "Release X.Y" followed later by 'class="release-tag stable"'
    local version
    version=$(echo "$releases_page" | grep -B5 'class="release-tag stable"' | grep -oE 'Release [0-9]+\.[0-9]+' | head -1 | sed 's/Release //')
    
    echo "$version"
}

# Handle --version-only flag
if [[ "${1:-}" == "--version-only" ]]; then
    VERSION=$(get_stable_version)
    if [[ -z "$VERSION" ]]; then
        echo "Error: Failed to fetch version from FoundryVTT" >&2
        exit 1
    fi
    echo "$VERSION"
    exit 0
fi

# Default: show version with context
echo "Fetching latest stable FoundryVTT version..."
VERSION=$(get_stable_version)

if [[ -z "$VERSION" ]]; then
    echo "Error: Could not determine latest stable version" >&2
    exit 1
fi

echo "Latest stable version: $VERSION"