# scripts/generate_icons.sh

#!/bin/bash

# Argument 1: Path to magick executable
MAGICK_BIN="$1"

# Fallback if not provided
if [ -z "$MAGICK_BIN" ]; then
    MAGICK_BIN="magick"
fi

# Assumes running from Project Root
SOURCE="assets/icon_source.png"
OUT_DIR="assets/icons"

if [ ! -f "$SOURCE" ]; then
    echo "Error: Source image '$SOURCE' not found in $(pwd)"
    exit 1
fi

# Verify magick works
"$MAGICK_BIN" -version >/dev/null 2>&1
if [ $? -ne 0 ]; then
    echo "Error: ImageMagick tool '$MAGICK_BIN' not found or not working."
    exit 1
fi

mkdir -p "$OUT_DIR"

# macOS
ICONSET="$OUT_DIR/icon.iconset"
mkdir -p "$ICONSET"

"$MAGICK_BIN" "$SOURCE" -scale 16x16     "$ICONSET/icon_16x16.png"
"$MAGICK_BIN" "$SOURCE" -scale 32x32     "$ICONSET/icon_16x16@2x.png"
"$MAGICK_BIN" "$SOURCE" -scale 32x32     "$ICONSET/icon_32x32.png"
"$MAGICK_BIN" "$SOURCE" -scale 64x64     "$ICONSET/icon_32x32@2x.png"
"$MAGICK_BIN" "$SOURCE" -scale 128x128   "$ICONSET/icon_128x128.png"
"$MAGICK_BIN" "$SOURCE" -scale 256x256   "$ICONSET/icon_128x128@2x.png"
"$MAGICK_BIN" "$SOURCE" -scale 256x256   "$ICONSET/icon_256x256.png"
"$MAGICK_BIN" "$SOURCE" -scale 512x512   "$ICONSET/icon_256x256@2x.png"
"$MAGICK_BIN" "$SOURCE" -scale 512x512   "$ICONSET/icon_512x512.png"
"$MAGICK_BIN" "$SOURCE" -scale 1024x1024 "$ICONSET/icon_512x512@2x.png"

iconutil -c icns "$ICONSET" -o "$OUT_DIR/app_icon.icns"
rm -rf "$ICONSET"

# Windows
"$MAGICK_BIN" "$SOURCE" \
    \( -clone 0 -scale 256x256 \) \
    \( -clone 0 -scale 128x128 \) \
    \( -clone 0 -scale 64x64 \) \
    \( -clone 0 -scale 48x48 \) \
    \( -clone 0 -scale 32x32 \) \
    \( -clone 0 -scale 16x16 \) \
    -delete 0 -alpha off -colors 256 "$OUT_DIR/app_icon.ico"

# Android
ANDROID_DIR="$OUT_DIR/android/res"

mkdir -p "$ANDROID_DIR/mipmap-mdpi"
"$MAGICK_BIN" "$SOURCE" -scale 48x48 "$ANDROID_DIR/mipmap-mdpi/ic_launcher.png"

mkdir -p "$ANDROID_DIR/mipmap-hdpi"
"$MAGICK_BIN" "$SOURCE" -scale 72x72 "$ANDROID_DIR/mipmap-hdpi/ic_launcher.png"

mkdir -p "$ANDROID_DIR/mipmap-xhdpi"
"$MAGICK_BIN" "$SOURCE" -scale 96x96 "$ANDROID_DIR/mipmap-xhdpi/ic_launcher.png"

mkdir -p "$ANDROID_DIR/mipmap-xxhdpi"
"$MAGICK_BIN" "$SOURCE" -scale 144x144 "$ANDROID_DIR/mipmap-xxhdpi/ic_launcher.png"

mkdir -p "$ANDROID_DIR/mipmap-xxxhdpi"
"$MAGICK_BIN" "$SOURCE" -scale 192x192 "$ANDROID_DIR/mipmap-xxxhdpi/ic_launcher.png"

# iOS
XCASSETS_DIR="$OUT_DIR/ios/Assets.xcassets"
IOS_DIR="$XCASSETS_DIR/AppIcon.appiconset"
mkdir -p "$IOS_DIR"

cat > "$XCASSETS_DIR/Contents.json" <<EOF
{
  "info" : {
    "version" : 1,
    "author" : "xcode"
  }
}
EOF

"$MAGICK_BIN" "$SOURCE" -scale 20x20   "$IOS_DIR/Icon-20.png"
"$MAGICK_BIN" "$SOURCE" -scale 40x40   "$IOS_DIR/Icon-20@2x.png"
"$MAGICK_BIN" "$SOURCE" -scale 60x60   "$IOS_DIR/Icon-20@3x.png"
"$MAGICK_BIN" "$SOURCE" -scale 29x29   "$IOS_DIR/Icon-29.png"
"$MAGICK_BIN" "$SOURCE" -scale 58x58   "$IOS_DIR/Icon-29@2x.png"
"$MAGICK_BIN" "$SOURCE" -scale 87x87   "$IOS_DIR/Icon-29@3x.png"
"$MAGICK_BIN" "$SOURCE" -scale 40x40   "$IOS_DIR/Icon-40.png"
"$MAGICK_BIN" "$SOURCE" -scale 80x80   "$IOS_DIR/Icon-40@2x.png"
"$MAGICK_BIN" "$SOURCE" -scale 120x120 "$IOS_DIR/Icon-40@3x.png"
"$MAGICK_BIN" "$SOURCE" -scale 120x120 "$IOS_DIR/Icon-60@2x.png"
"$MAGICK_BIN" "$SOURCE" -scale 180x180 "$IOS_DIR/Icon-60@3x.png"
"$MAGICK_BIN" "$SOURCE" -scale 76x76   "$IOS_DIR/Icon-76.png"
"$MAGICK_BIN" "$SOURCE" -scale 152x152 "$IOS_DIR/Icon-76@2x.png"
"$MAGICK_BIN" "$SOURCE" -scale 167x167 "$IOS_DIR/Icon-83.5@2x.png"
"$MAGICK_BIN" "$SOURCE" -scale 1024x1024 "$IOS_DIR/Icon-1024.png"

cat > "$IOS_DIR/Contents.json" <<EOF
{
  "images" : [
    { "size" : "20x20", "idiom" : "iphone", "filename" : "Icon-20@2x.png", "scale" : "2x" },
    { "size" : "20x20", "idiom" : "iphone", "filename" : "Icon-20@3x.png", "scale" : "3x" },
    { "size" : "29x29", "idiom" : "iphone", "filename" : "Icon-29.png", "scale" : "1x" },
    { "size" : "29x29", "idiom" : "iphone", "filename" : "Icon-29@2x.png", "scale" : "2x" },
    { "size" : "29x29", "idiom" : "iphone", "filename" : "Icon-29@3x.png", "scale" : "3x" },
    { "size" : "40x40", "idiom" : "iphone", "filename" : "Icon-40@2x.png", "scale" : "2x" },
    { "size" : "40x40", "idiom" : "iphone", "filename" : "Icon-40@3x.png", "scale" : "3x" },
    { "size" : "60x60", "idiom" : "iphone", "filename" : "Icon-60@2x.png", "scale" : "2x" },
    { "size" : "60x60", "idiom" : "iphone", "filename" : "Icon-60@3x.png", "scale" : "3x" },
    { "size" : "20x20", "idiom" : "ipad", "filename" : "Icon-20.png", "scale" : "1x" },
    { "size" : "20x20", "idiom" : "ipad", "filename" : "Icon-20@2x.png", "scale" : "2x" },
    { "size" : "29x29", "idiom" : "ipad", "filename" : "Icon-29.png", "scale" : "1x" },
    { "size" : "29x29", "idiom" : "ipad", "filename" : "Icon-29@2x.png", "scale" : "2x" },
    { "size" : "40x40", "idiom" : "ipad", "filename" : "Icon-40.png", "scale" : "1x" },
    { "size" : "40x40", "idiom" : "ipad", "filename" : "Icon-40@2x.png", "scale" : "2x" },
    { "size" : "76x76", "idiom" : "ipad", "filename" : "Icon-76.png", "scale" : "1x" },
    { "size" : "76x76", "idiom" : "ipad", "filename" : "Icon-76@2x.png", "scale" : "2x" },
    { "size" : "83.5x83.5", "idiom" : "ipad", "filename" : "Icon-83.5@2x.png", "scale" : "2x" },
    { "size" : "1024x1024", "idiom" : "ios-marketing", "filename" : "Icon-1024.png", "scale" : "1x" }
  ],
  "info" : {
    "version" : 1,
    "author" : "xcode"
  }
}
EOF