#!/usr/bin/env bash
set -euo pipefail

ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
cd "$ROOT"

case "$(uname -s)" in
    Darwin) ;;
    *) echo "wrong platform: $(uname -s) - use cargo xtask build" >&2; exit 1 ;;
esac

export MACOSX_DEPLOYMENT_TARGET=11.0
export PROFILE=release

BUILD="$ROOT/build"
APP="$BUILD/bin/femm.app"
CONTENTS="$APP/Contents"
MACOS="$CONTENTS/MacOS"
RESOURCES="$CONTENTS/Resources"
ICONSET="$BUILD/AppIcon.iconset"
ICNS="$RESOURCES/AppIcon.icns"
SVG="$ROOT/assets/femm.svg"

echo "Building Triangle..."
bash "$ROOT/scripts/macos/build_triangle.sh"

TRI="$ROOT/build/triangle/triangle"
if [ ! -f "$TRI" ]; then
    echo "ERROR: triangle binary missing at $TRI" >&2
    exit 1
fi

echo "Building Rust workspace (release)..."
cargo build --release -p femm-app -p femm-mag-solve

BIN="$ROOT/target/release/femm"
SOLVE="$ROOT/target/release/femm-mag-solve"
if [ ! -f "$BIN" ]; then
    echo "ERROR: femm binary not found at $BIN" >&2
    exit 1
fi
if [ ! -f "$SOLVE" ]; then
    echo "ERROR: femm-mag-solve binary not found at $SOLVE" >&2
    exit 1
fi

rm -rf "$APP"
mkdir -p "$MACOS" "$RESOURCES"
cp "$BIN" "$MACOS/femm"
cp "$SOLVE" "$MACOS/femm-mag-solve"
cp "$TRI" "$MACOS/triangle"

if [ -f "$SVG" ]; then
    if ! command -v rsvg-convert >/dev/null; then
        echo "ERROR: rsvg-convert missing - brew install librsvg" >&2
        exit 1
    fi
    if ! command -v iconutil >/dev/null; then
        echo "ERROR: iconutil missing - install Xcode command line tools" >&2
        exit 1
    fi
    rm -rf "$ICONSET"
    mkdir -p "$ICONSET"
    for size in 16 32 64 128 256 512 1024; do
        rsvg-convert --width="$size" --height="$size" "$SVG" -o "$ICONSET/icon_${size}.png"
    done
    cp "$ICONSET/icon_16.png"   "$ICONSET/icon_16x16.png"
    cp "$ICONSET/icon_32.png"   "$ICONSET/icon_16x16@2x.png"
    cp "$ICONSET/icon_32.png"   "$ICONSET/icon_32x32.png"
    cp "$ICONSET/icon_64.png"   "$ICONSET/icon_32x32@2x.png"
    cp "$ICONSET/icon_128.png"  "$ICONSET/icon_128x128.png"
    cp "$ICONSET/icon_256.png"  "$ICONSET/icon_128x128@2x.png"
    cp "$ICONSET/icon_256.png"  "$ICONSET/icon_256x256.png"
    cp "$ICONSET/icon_512.png"  "$ICONSET/icon_256x256@2x.png"
    cp "$ICONSET/icon_512.png"  "$ICONSET/icon_512x512.png"
    cp "$ICONSET/icon_1024.png" "$ICONSET/icon_512x512@2x.png"
    iconutil -c icns "$ICONSET" -o "$ICNS"
else
    echo "WARNING: $SVG not found - app bundle will lack an icon"
fi

cat > "$CONTENTS/Info.plist" <<'PLIST'
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleDevelopmentRegion</key>     <string>en</string>
    <key>CFBundleExecutable</key>            <string>femm</string>
    <key>CFBundleIconFile</key>              <string>AppIcon</string>
    <key>CFBundleIdentifier</key>            <string>org.else-if.femm</string>
    <key>CFBundleInfoDictionaryVersion</key> <string>6.0</string>
    <key>CFBundleName</key>                  <string>femm</string>
    <key>CFBundleDisplayName</key>           <string>FEMM</string>
    <key>CFBundlePackageType</key>           <string>APPL</string>
    <key>CFBundleShortVersionString</key>    <string>0.0.1</string>
    <key>CFBundleVersion</key>               <string>0.0.1</string>
    <key>LSMinimumSystemVersion</key>        <string>11.0</string>
    <key>NSHighResolutionCapable</key>       <true/>
</dict>
</plist>
PLIST

echo "Built: $APP"