#!/bin/bash

# Generates icons for Bogam mobile and web apps
# Usage: ./resize_logo_into_icons.sh
# Requires: ImageMagick (brew install imagemagick)

if ! command -v magick &> /dev/null; then
    echo "Error: ImageMagick v7 not installed. Install with: brew install imagemagick"
    exit 1
fi

# Base paths
PROJECT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
SOURCE_PNG="${PROJECT_ROOT}/common/assets/EX.png"
SOURCE_SVG="${PROJECT_ROOT}/common/assets/EX.png"
MOBILE_ASSETS_DIR="${PROJECT_ROOT}/shells/palace-mobile/assets"
WEB_PUBLIC_DIR="${PROJECT_ROOT}/shells/shell-web/public"
WEB_IMAGES_DIR="${WEB_PUBLIC_DIR}/images"

# Verify source files exist
for FILE in "$SOURCE_PNG" "$SOURCE_SVG"; do
    if [ ! -f "$FILE" ]; then
        echo "Error: Source file not found at $FILE"
        exit 1
    fi
done

mkdir -p "${WEB_IMAGES_DIR}/icons"
echo "Generating icons for all platforms..."

# iOS App Icon (1024x1024px)
IOS_SIZE=1024
IOS_LOGO_SIZE=$((IOS_SIZE * 82 / 100))  # 82% ratio per Apple guidelines

magick -size ${IOS_SIZE}x${IOS_SIZE} xc:"#121736" "${MOBILE_ASSETS_DIR}/ios-icon-bg.png"
magick "$SOURCE_PNG" -resize ${IOS_LOGO_SIZE}x${IOS_LOGO_SIZE} -colorspace sRGB "${MOBILE_ASSETS_DIR}/ios-logo-resized.png"
magick composite -gravity center "${MOBILE_ASSETS_DIR}/ios-logo-resized.png" "${MOBILE_ASSETS_DIR}/ios-icon-bg.png" "${MOBILE_ASSETS_DIR}/icon.png"
rm "${MOBILE_ASSETS_DIR}/ios-icon-bg.png" "${MOBILE_ASSETS_DIR}/ios-logo-resized.png"

echo "Created iOS app icon: ${MOBILE_ASSETS_DIR}/icon.png"

# Android Adaptive Icon (108x108dp)
ANDROID_SIZE=432     # 108dp * 4 (xxxhdpi scale)
ANDROID_SAFE_ZONE=264  # 66dp * 4 (safe zone)
LOGO_SIZE=$((ANDROID_SAFE_ZONE * 95 / 100))  # 95% of safe zone

magick -size ${ANDROID_SIZE}x${ANDROID_SIZE} xc:"#121736" "${MOBILE_ASSETS_DIR}/adaptive-icon-bg.png"
magick "$SOURCE_PNG" -resize ${LOGO_SIZE}x${LOGO_SIZE} -colorspace sRGB "${MOBILE_ASSETS_DIR}/logo-resized.png"
magick composite -gravity center "${MOBILE_ASSETS_DIR}/logo-resized.png" "${MOBILE_ASSETS_DIR}/adaptive-icon-bg.png" "${MOBILE_ASSETS_DIR}/adaptive-icon.png"

# Android foreground layer (transparent)
magick -size ${ANDROID_SIZE}x${ANDROID_SIZE} xc:none "${MOBILE_ASSETS_DIR}/transparent-bg.png"
magick composite -gravity center "${MOBILE_ASSETS_DIR}/logo-resized.png" "${MOBILE_ASSETS_DIR}/transparent-bg.png" "${MOBILE_ASSETS_DIR}/ic_launcher_foreground.png"
rm "${MOBILE_ASSETS_DIR}/adaptive-icon-bg.png" "${MOBILE_ASSETS_DIR}/logo-resized.png" "${MOBILE_ASSETS_DIR}/transparent-bg.png"

echo "Created Android adaptive icon: ${MOBILE_ASSETS_DIR}/adaptive-icon.png"

# Update app.json background color
APP_JSON="${PROJECT_ROOT}/shells/palace-mobile/app.json"
if [ -f "$APP_JSON" ] && command -v jq &> /dev/null; then
    cp "$APP_JSON" "${APP_JSON}.bak"
    jq '.expo.android.adaptiveIcon.backgroundColor = "#121736"' "$APP_JSON" > "${APP_JSON}.tmp" && mv "${APP_JSON}.tmp" "$APP_JSON"
    echo "Updated app.json with dark background color"
fi

# Mobile favicon
magick "$SOURCE_PNG" -resize 64x64 "${MOBILE_ASSETS_DIR}/favicon.png"
echo "Created mobile favicon: ${MOBILE_ASSETS_DIR}/favicon.png"

# Splash Icon
SPLASH_SIZE=512
SPLASH_LOGO_SIZE=$((SPLASH_SIZE * 70 / 100))  # 70% standard ratio

magick -size ${SPLASH_SIZE}x${SPLASH_SIZE} xc:"#121736" "${MOBILE_ASSETS_DIR}/splash-bg.png"
magick "$SOURCE_PNG" -resize ${SPLASH_LOGO_SIZE}x${SPLASH_LOGO_SIZE} "${MOBILE_ASSETS_DIR}/splash-resized.png"
magick composite -gravity center "${MOBILE_ASSETS_DIR}/splash-resized.png" "${MOBILE_ASSETS_DIR}/splash-bg.png" "${MOBILE_ASSETS_DIR}/splash-icon.png"
rm "${MOBILE_ASSETS_DIR}/splash-bg.png" "${MOBILE_ASSETS_DIR}/splash-resized.png"
echo "Created splash icon: ${MOBILE_ASSETS_DIR}/splash-icon.png"

magick "$SOURCE_PNG" -resize 512x512 "${WEB_IMAGES_DIR}/favicon.png"
echo "Created web favicon PNG: ${WEB_IMAGES_DIR}/favicon.png"

SIZES=("512")
for SIZE in "${SIZES[@]}"; do
    magick "$SOURCE_PNG" -resize "${SIZE}x${SIZE}" "${WEB_IMAGES_DIR}/icons/icon-${SIZE}.png"
    echo "Created web icon: ${WEB_IMAGES_DIR}/icons/icon-${SIZE}.png"
done

# Apple touch icon
magick "$SOURCE_PNG" -resize 180x180 "${WEB_IMAGES_DIR}/apple-touch-icon.png"
echo "Created Apple touch icon: ${WEB_IMAGES_DIR}/apple-touch-icon.png"

# OG image
magick "$SOURCE_PNG" -resize 1200x630 "${WEB_IMAGES_DIR}/bogam-og.png"
echo "Created OG image: ${WEB_IMAGES_DIR}/bogam-og.png"

echo ""
echo "All icons have been generated successfully!"
echo ""
echo "Next steps:"
echo "1. For web: Icons have been added and layout has been updated"
echo ""
echo "2. For mobile: The icons are already in the correct locations"
echo "   You need to rebuild the mobile app to see the changes:"
echo "   cd ${PROJECT_ROOT}/shells/palace-mobile"
echo "   npx expo prebuild --clean"
echo "   eas build --local -p android --profile preview"