#!/bin/bash
# generate-icons.sh - Generate application icons for Kindred Create
#
# This script generates icon files for all platforms from the source SVG.
# Prerequisites:
#   - Inkscape (SVG to PNG conversion)
#   - ImageMagick (ICO generation for Windows)
#   - png2icns or iconutil (ICNS generation for macOS)
#
# Usage: ./generate-icons.sh

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
SVG_SOURCE="$SCRIPT_DIR/kindred-logo.svg"
OUTPUT_DIR="$SCRIPT_DIR/../icons"

# Check for source file
if [ ! -f "$SVG_SOURCE" ]; then
    echo "Error: Source SVG not found at $SVG_SOURCE"
    echo "Please place kindred-logo.svg in the branding directory."
    exit 1
fi

# Check for Inkscape
if ! command -v inkscape &> /dev/null; then
    echo "Error: Inkscape is required but not installed."
    echo "Install with: sudo apt install inkscape (Debian/Ubuntu)"
    exit 1
fi

echo "Generating icons from $SVG_SOURCE..."

# Generate PNGs for Linux/hicolor icon theme
for size in 16 24 32 48 64 128 256 512; do
    dir="$OUTPUT_DIR/hicolor/${size}x${size}/apps"
    mkdir -p "$dir"
    echo "  Generating ${size}x${size} PNG..."
    inkscape -w $size -h $size "$SVG_SOURCE" -o "$dir/kindred-create.png" 2>/dev/null
done

# Copy SVG for scalable
mkdir -p "$OUTPUT_DIR/hicolor/scalable/apps"
cp "$SVG_SOURCE" "$OUTPUT_DIR/hicolor/scalable/apps/kindred-create.svg"
echo "  Copied scalable SVG"

# Generate Windows ICO (requires ImageMagick)
if command -v convert &> /dev/null; then
    echo "  Generating Windows ICO..."
    convert \
        "$OUTPUT_DIR/hicolor/16x16/apps/kindred-create.png" \
        "$OUTPUT_DIR/hicolor/24x24/apps/kindred-create.png" \
        "$OUTPUT_DIR/hicolor/32x32/apps/kindred-create.png" \
        "$OUTPUT_DIR/hicolor/48x48/apps/kindred-create.png" \
        "$OUTPUT_DIR/hicolor/64x64/apps/kindred-create.png" \
        "$OUTPUT_DIR/hicolor/128x128/apps/kindred-create.png" \
        "$OUTPUT_DIR/hicolor/256x256/apps/kindred-create.png" \
        "$OUTPUT_DIR/kindred-create.ico"
    echo "  Created kindred-create.ico"
else
    echo "  Warning: ImageMagick not found, skipping ICO generation."
    echo "  Install with: sudo apt install imagemagick"
fi

# Generate macOS ICNS (requires png2icns or iconutil)
if command -v png2icns &> /dev/null; then
    echo "  Generating macOS ICNS..."
    png2icns "$OUTPUT_DIR/kindred-create.icns" \
        "$OUTPUT_DIR/hicolor/16x16/apps/kindred-create.png" \
        "$OUTPUT_DIR/hicolor/32x32/apps/kindred-create.png" \
        "$OUTPUT_DIR/hicolor/128x128/apps/kindred-create.png" \
        "$OUTPUT_DIR/hicolor/256x256/apps/kindred-create.png" \
        "$OUTPUT_DIR/hicolor/512x512/apps/kindred-create.png"
    echo "  Created kindred-create.icns"
elif command -v iconutil &> /dev/null; then
    echo "  Generating macOS ICNS using iconutil..."
    ICONSET_DIR="$OUTPUT_DIR/kindred-create.iconset"
    mkdir -p "$ICONSET_DIR"
    cp "$OUTPUT_DIR/hicolor/16x16/apps/kindred-create.png" "$ICONSET_DIR/icon_16x16.png"
    cp "$OUTPUT_DIR/hicolor/32x32/apps/kindred-create.png" "$ICONSET_DIR/icon_16x16@2x.png"
    cp "$OUTPUT_DIR/hicolor/32x32/apps/kindred-create.png" "$ICONSET_DIR/icon_32x32.png"
    cp "$OUTPUT_DIR/hicolor/64x64/apps/kindred-create.png" "$ICONSET_DIR/icon_32x32@2x.png"
    cp "$OUTPUT_DIR/hicolor/128x128/apps/kindred-create.png" "$ICONSET_DIR/icon_128x128.png"
    cp "$OUTPUT_DIR/hicolor/256x256/apps/kindred-create.png" "$ICONSET_DIR/icon_128x128@2x.png"
    cp "$OUTPUT_DIR/hicolor/256x256/apps/kindred-create.png" "$ICONSET_DIR/icon_256x256.png"
    cp "$OUTPUT_DIR/hicolor/512x512/apps/kindred-create.png" "$ICONSET_DIR/icon_256x256@2x.png"
    cp "$OUTPUT_DIR/hicolor/512x512/apps/kindred-create.png" "$ICONSET_DIR/icon_512x512.png"
    iconutil -c icns "$ICONSET_DIR" -o "$OUTPUT_DIR/kindred-create.icns"
    rm -rf "$ICONSET_DIR"
    echo "  Created kindred-create.icns"
else
    echo "  Warning: Neither png2icns nor iconutil found, skipping ICNS generation."
    echo "  Install png2icns with: sudo apt install icnsutils"
fi

echo ""
echo "Icon generation complete!"
echo "Output directory: $OUTPUT_DIR"