#!/bin/bash
cd /var/www/html || exit 1

# Fix permissions on config.yml if it exists
if [ -f config.yml ]; then
    chmod 0600 config.yml
fi

# Create repo icon directory if it doesn't exist
mkdir -p repo/icons
# Create a basic repo icon if missing
if [ ! -f repo/icons/icon.png ]; then
    echo "Creating placeholder repo icon..."
    # Try to download a simple icon
    wget -q -O repo/icons/icon.png "https://f-droid.org/assets/favicon-256.png" || echo "Could not create icon, please add one manually"
fi

# Function to extract version from APK (if aapt is available)
get_version() {
    apk_file=$1
    if command -v aapt >/dev/null 2>&1; then
        version=$(aapt dump badging "$apk_file" 2>/dev/null | grep versionName | awk -F"'" '{print $4}')
        echo "$version"
    else
        echo "unknown (aapt not installed)"
    fi
}

# Function to download and update only if changed
update_app() {
    app_name=$1
    app_url=$2
    
    echo "Processing $app_name..."
    
    # Create temp directory
    mkdir -p ./temp
    
    # Download to temp file
    wget -q -O "./temp/${app_name}.apk.new" "$app_url"
    
    # Check if download was successful
    if [ ! -s "./temp/${app_name}.apk.new" ]; then
        echo "  ✗ Failed to download $app_name, skipping"
        rm -f "./temp/${app_name}.apk.new"
        return
    fi
    
    # Extract version info from the new APK
    new_version=$(get_version "./temp/${app_name}.apk.new")
    echo "  Downloaded version: $new_version"
    
    # Check if app exists and if it's different
    if [ -f "./repo/${app_name}.apk" ]; then
        # Extract version info from the existing APK
        current_version=$(get_version "./repo/${app_name}.apk")
        echo "  Current version: $current_version"
        
        # Compare files (binary comparison to be absolutely sure)
        if ! cmp -s "./temp/${app_name}.apk.new" "./repo/${app_name}.apk"; then
            echo "  ✓ $app_name: New version detected ($current_version → $new_version), updating..."
            mv "./temp/${app_name}.apk.new" "./repo/${app_name}.apk"
            touch -d "$(date +%Y-%m-%d)" "./repo/${app_name}.apk"
        else
            echo "  ✓ $app_name: No changes detected (version $current_version), keeping existing version"
            rm "./temp/${app_name}.apk.new"
        fi
    else
        echo "  ✓ $app_name: File does not exist yet, adding version $new_version..."
        mv "./temp/${app_name}.apk.new" "./repo/${app_name}.apk"
        touch -d "$(date +%Y-%m-%d)" "./repo/${app_name}.apk"
    fi
}

# Make sure archive directory exists
mkdir -p archive/

# Process each app
update_app "YouTube" "https://github.com/FiorenMas/Revanced-And-Revanced-Extended-Non-Root/releases/download/all/youtube-revanced-extended.apk"
update_app "Reddit" "https://github.com/FiorenMas/Revanced-And-Revanced-Extended-Non-Root/releases/download/all/reddit-revanced-extended.apk"
update_app "SoundCloud" "https://github.com/FiorenMas/Revanced-And-Revanced-Extended-Non-Root/releases/download/all/soundcloud-revanced.apk"
update_app "Duolingo" "https://git.felo.gg/FeloStore/Data/releases/download/latest/duolingo.apk"
update_app "GoogleNews" "https://github.com/FiorenMas/Revanced-And-Revanced-Extended-Non-Root/releases/download/all/googlenews-arm64-v8a-revanced.apk"
update_app "Instagram" "https://git.felo.gg/FeloStore/Data/releases/download/latest/instagram.apk"
update_app "Twitter" "https://github.com/FiorenMas/Revanced-And-Revanced-Extended-Non-Root/releases/download/all/twitter-stable-piko.apk"
update_app "NovaLauncher" "https://github.com/FiorenMas/Revanced-And-Revanced-Extended-Non-Root/releases/download/all/nova-launcher-indrastorms.apk"
update_app "Busuu" "https://git.felo.gg/FeloStore/Data/releases/download/latest/busuu.apk"
update_app "Quizlet" "https://git.felo.gg/FeloStore/Data/releases/download/latest/quizlet.apk"
update_app "Telegram" "https://git.felo.gg/FeloStore/Data/releases/download/latest/telegram.apk"

# Clean up temp directory
rm -rf ./temp

# Check for archived APKs and restore them to repo
echo "Checking for archived APKs to restore..."
for app in YouTube Reddit SoundCloud Duolingo GoogleNews Instagram Twitter NovaLauncher Busuu Quizlet Telegram; do
    if [ -f "archive/${app}.apk" ]; then
        echo "Restoring ${app}.apk from archive to repo"
        cp "archive/${app}.apk" "repo/${app}.apk"
        touch -d "$(date +%Y-%m-%d)" "repo/${app}.apk"
    fi
done

# Add option to config to accept unsigned APKs
if [ -f config.yml ]; then
    if ! grep -q "allow_disabled_algorithms:" config.yml; then
        echo "allow_disabled_algorithms: True" >> config.yml
    fi
fi

# Update F-Droid repository with only supported flags
echo "Updating F-Droid repository..."
fdroid update --allow-disabled-algorithms --use-date-from-apk --create-metadata --clean

# Final update to ensure everything is included
echo "Running final update with simpler flags..."
fdroid update --allow-disabled-algorithms --use-date-from-apk --nosign

echo "Update complete!"