#!/bin/bash
# DragonX ImGui Wallet - Unified Build Script
# Copyright 2024-2026 The Hush Developers
# Released under the GPLv3
#
# Usage:
#   ./build.sh                        # Dev build (Linux, debug-friendly)
#   ./build.sh --linux-release        # Linux release + AppImage
#   ./build.sh --win-release          # Windows cross-compile (mingw-w64)
#   ./build.sh --mac-release          # macOS .app bundle + DMG
#   ./build.sh --linux-release --win-release   # Multiple targets
#   ./build.sh --clean --win-release  # Clean first, then build
#
# Prerequisites:
#   Linux:   cmake, g++, libsdl3-dev (or fetched), libsodium-dev
#   Windows: mingw-w64 (posix threads), cmake
#   macOS (native): Xcode CLT, cmake, create-dmg (brew install create-dmg)
#   macOS (cross from Linux): osxcross + macOS SDK, genisoimage, icnsutils

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
VERSION="1.0.0"

# ── Colours ──────────────────────────────────────────────────────────────────
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
CYAN='\033[0;36m'
NC='\033[0m'

info()  { echo -e "${GREEN}[*]${NC} $1"; }
warn()  { echo -e "${YELLOW}[!]${NC} $1"; }
err()   { echo -e "${RED}[ERROR]${NC} $1"; }
header(){ echo -e "\n${CYAN}══════════════════════════════════════════════════════════${NC}"; echo -e "${CYAN}  $1${NC}"; echo -e "${CYAN}══════════════════════════════════════════════════════════${NC}"; }

JOBS=$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 4)

# ── Defaults ─────────────────────────────────────────────────────────────────
DO_DEV=false
DO_LINUX=false
DO_WIN=false
DO_MAC=false
CLEAN=false
BUILD_TYPE="Release"

usage() {
    cat <<EOF
DragonX Wallet — Unified Build Script

Usage: $0 [options]

Targets  (at least one required, or none for dev build):
  --linux-release     Linux release build + AppImage   -> release/linux/
  --win-release       Windows cross-compile (mingw-w64) -> release/windows/
  --mac-release       macOS .app bundle + DMG           -> release/mac/

  Build trees are stored under build/{linux,windows,mac}/

Options:
  -c, --clean         Remove build artifacts before building
  -d, --debug         Use Debug build type instead of Release
  -j N                Parallel jobs (default: $JOBS)
  -h, --help          Show this help

Cross-compiling from Linux:
  Windows:  sudo apt install mingw-w64
  macOS:    Requires osxcross (https://github.com/tpoechtrager/osxcross)
            export OSXCROSS=/path/to/osxcross
            sudo apt install genisoimage icnsutils   # DMG + icon tools

Examples:
  $0                             # Quick dev build (Linux)
  $0 --linux-release             # Linux release + AppImage
  $0 --win-release               # Windows cross-compile
  $0 --mac-release               # macOS bundle + DMG (native or osxcross)
  $0 --clean --linux-release --win-release   # Clean + both
EOF
    exit 0
}

# ── Parse args ───────────────────────────────────────────────────────────────
while [[ $# -gt 0 ]]; do
    case $1 in
        --linux-release) DO_LINUX=true; shift ;;
        --win-release)   DO_WIN=true;   shift ;;
        --mac-release)   DO_MAC=true;   shift ;;
        -c|--clean)      CLEAN=true;    shift ;;
        -d|--debug)      BUILD_TYPE="Debug"; shift ;;
        -j)              JOBS="$2"; shift 2 ;;
        -h|--help)       usage ;;
        *) err "Unknown option: $1"; usage ;;
    esac
done

# No release target → dev build (native, no packaging)
if ! $DO_LINUX && ! $DO_WIN && ! $DO_MAC; then
    DO_DEV=true
fi

# ── Helper: find resource files ──────────────────────────────────────────────
find_sapling_params() {
    local dirs=(
        "$HOME/.zcash-params"
        "$HOME/.hush-params"
        "$SCRIPT_DIR/../SilentDragonX"
        "$SCRIPT_DIR/prebuilt-binaries/dragonxd-win"
        "$SCRIPT_DIR/prebuilt-binaries/dragonxd-linux"
        "$SCRIPT_DIR"
    )
    for d in "${dirs[@]}"; do
        if [[ -f "$d/sapling-spend.params" && -f "$d/sapling-output.params" ]]; then
            SAPLING_SPEND="$d/sapling-spend.params"
            SAPLING_OUTPUT="$d/sapling-output.params"
            info "Found Sapling params in $d"
            return 0
        fi
    done
    warn "Sapling params not found — embedded resources will be unavailable"
    return 1
}

find_asmap() {
    local paths=(
        "$SCRIPT_DIR/external/hush3/asmap.dat"
        "$SCRIPT_DIR/external/hush3/contrib/asmap/asmap.dat"
        "$HOME/hush3/asmap.dat"
        "$HOME/hush3/contrib/asmap/asmap.dat"
        "$SCRIPT_DIR/../asmap.dat"
        "$SCRIPT_DIR/asmap.dat"
        "$SCRIPT_DIR/../SilentDragonX/asmap.dat"
        "$SCRIPT_DIR/prebuilt-binaries/dragonxd-linux/asmap.dat"
        "$SCRIPT_DIR/prebuilt-binaries/dragonxd-win/asmap.dat"
    )
    for p in "${paths[@]}"; do
        if [[ -f "$p" ]]; then
            ASMAP_DAT="$p"
            info "Found asmap.dat at $p"
            return 0
        fi
    done
    return 1
}

# ── Helper: bundle daemon binaries into a target dir ─────────────────────────
bundle_linux_daemon() {
    local dest="$1"
    local found=0

    local launcher_paths=(
        "$SCRIPT_DIR/prebuilt-binaries/dragonxd-linux/hush-arrakis-chain"
        "$SCRIPT_DIR/../hush-arrakis-chain"
        "$SCRIPT_DIR/external/hush3/src/hush-arrakis-chain"
        "$HOME/hush3/src/hush-arrakis-chain"
    )
    for p in "${launcher_paths[@]}"; do
        if [[ -f "$p" ]]; then
            cp "$p" "$dest/hush-arrakis-chain"; chmod +x "$dest/hush-arrakis-chain"
            info "  Bundled hush-arrakis-chain"; found=1; break
        fi
    done

    local hushd_paths=(
        "$SCRIPT_DIR/prebuilt-binaries/dragonxd-linux/hushd"
        "$SCRIPT_DIR/../hushd"
        "$SCRIPT_DIR/external/hush3/src/hushd"
        "$HOME/hush3/src/hushd"
    )
    for p in "${hushd_paths[@]}"; do
        if [[ -f "$p" ]]; then
            cp "$p" "$dest/hushd"; chmod +x "$dest/hushd"
            info "  Bundled hushd"; break
        fi
    done

    local dragonxd_paths=(
        "$SCRIPT_DIR/prebuilt-binaries/dragonxd-linux/dragonxd"
        "$SCRIPT_DIR/../dragonxd"
        "$SCRIPT_DIR/external/hush3/src/dragonxd"
        "$HOME/hush3/src/dragonxd"
    )
    for p in "${dragonxd_paths[@]}"; do
        if [[ -f "$p" ]]; then
            cp "$p" "$dest/dragonxd"; chmod +x "$dest/dragonxd"
            info "  Bundled dragonxd"; break
        fi
    done

    # asmap.dat
    find_asmap && cp "$ASMAP_DAT" "$dest/asmap.dat" && info "  Bundled asmap.dat"

    return $found
}

# ═══════════════════════════════════════════════════════════════════════════════
#  DEV BUILD  (native, no packaging)
# ═══════════════════════════════════════════════════════════════════════════════
build_dev() {
    header "Dev Build ($(uname -s) / $BUILD_TYPE)"
    local bd="$SCRIPT_DIR/build/linux"

    if $CLEAN; then
        info "Cleaning $bd ..."; rm -rf "$bd"
    fi
    mkdir -p "$bd" && cd "$bd"

    info "Configuring ..."
    cmake "$SCRIPT_DIR" \
        -DCMAKE_BUILD_TYPE="$BUILD_TYPE" \
        -DCMAKE_CXX_FLAGS_RELEASE="-O3 -DNDEBUG" \
        -DDRAGONX_USE_SYSTEM_SDL3=ON

    info "Building with $JOBS jobs ..."
    cmake --build . -j "$JOBS"

    [[ -f "bin/ObsidianDragon" ]] || { err "Build failed"; exit 1; }
    info "Dev binary: $bd/bin/ObsidianDragon ($(du -h bin/ObsidianDragon | cut -f1))"
}

# ═══════════════════════════════════════════════════════════════════════════════
#  RELEASE: LINUX  —  build + strip + bundle daemon + AppImage
# ═══════════════════════════════════════════════════════════════════════════════
build_release_linux() {
    header "Release: Linux x86_64"
    local bd="$SCRIPT_DIR/build/linux"
    local out="$SCRIPT_DIR/release/linux"

    if $CLEAN; then
        info "Cleaning $bd ..."; rm -rf "$bd"
    fi
    mkdir -p "$bd" && cd "$bd"

    # ── Compile ──────────────────────────────────────────────────────────────
    info "Configuring ..."
    cmake "$SCRIPT_DIR" \
        -DCMAKE_BUILD_TYPE=Release \
        -DCMAKE_CXX_FLAGS_RELEASE="-O3 -DNDEBUG" \
        -DDRAGONX_USE_SYSTEM_SDL3=ON

    info "Building with $JOBS jobs ..."
    cmake --build . -j "$JOBS"

    [[ -f "bin/ObsidianDragon" ]] || { err "Linux build failed"; exit 1; }

    info "Stripping ..."
    strip bin/ObsidianDragon
    info "Binary: $(du -h bin/ObsidianDragon | cut -f1)"

    # ── Bundle daemon ────────────────────────────────────────────────────────
    bundle_linux_daemon "bin" || warn "Daemon not bundled — wallet-only build"

    # ── Package: release/linux/ ──────────────────────────────────────────────
    rm -rf "$out"
    mkdir -p "$out"

    cp bin/ObsidianDragon "$out/"
    [[ -f bin/hush-arrakis-chain ]] && cp bin/hush-arrakis-chain "$out/"
    [[ -f bin/hushd ]]              && cp bin/hushd "$out/"
    [[ -f bin/dragonxd ]]           && cp bin/dragonxd "$out/"
    [[ -f bin/asmap.dat ]]          && cp bin/asmap.dat "$out/"
    cp -r bin/res "$out/" 2>/dev/null || true

    # ── AppImage ─────────────────────────────────────────────────────────────
    info "Creating AppImage ..."
    local APPDIR="$bd/AppDir"
    rm -rf "$APPDIR"
    mkdir -p "$APPDIR/usr/bin" "$APPDIR/usr/lib" \
             "$APPDIR/usr/share/applications" \
             "$APPDIR/usr/share/icons/hicolor/256x256/apps" \
             "$APPDIR/usr/share/ObsidianDragon/res"

    cp bin/ObsidianDragon "$APPDIR/usr/bin/"
    cp -r bin/res/* "$APPDIR/usr/share/ObsidianDragon/res/" 2>/dev/null || true

    # Daemon inside AppImage
    [[ -f bin/hush-arrakis-chain ]] && cp bin/hush-arrakis-chain "$APPDIR/usr/bin/"
    [[ -f bin/hushd ]]              && cp bin/hushd "$APPDIR/usr/bin/"
    [[ -f bin/dragonxd ]]           && cp bin/dragonxd "$APPDIR/usr/bin/"
    [[ -f bin/asmap.dat ]]          && cp bin/asmap.dat "$APPDIR/usr/share/ObsidianDragon/"

    # Desktop entry
    cat > "$APPDIR/usr/share/applications/ObsidianDragon.desktop" <<'DESK'
[Desktop Entry]
Type=Application
Name=DragonX Wallet
Comment=DragonX Cryptocurrency Wallet
Exec=ObsidianDragon
Icon=ObsidianDragon
Categories=Finance;Network;
Terminal=false
StartupNotify=true
DESK
    cp "$APPDIR/usr/share/applications/ObsidianDragon.desktop" "$APPDIR/"

    # Icon
    if [[ -f "$SCRIPT_DIR/res/icons/dragonx-256.png" ]]; then
        cp "$SCRIPT_DIR/res/icons/dragonx-256.png" \
           "$APPDIR/usr/share/icons/hicolor/256x256/apps/ObsidianDragon.png"
    else
        cat > "$APPDIR/ObsidianDragon.svg" <<'SVG'
<?xml version="1.0" encoding="UTF-8"?>
<svg width="256" height="256" viewBox="0 0 256 256" xmlns="http://www.w3.org/2000/svg">
  <rect width="256" height="256" rx="32" fill="#1a1a1a"/>
  <circle cx="128" cy="128" r="80" fill="none" stroke="#2e7d32" stroke-width="8"/>
  <text x="128" y="145" font-family="Arial,sans-serif" font-size="72" font-weight="bold"
        fill="#4caf50" text-anchor="middle">DX</text>
</svg>
SVG
        if command -v rsvg-convert &>/dev/null; then
            rsvg-convert -w 256 -h 256 "$APPDIR/ObsidianDragon.svg" > \
                "$APPDIR/usr/share/icons/hicolor/256x256/apps/ObsidianDragon.png"
        fi
    fi
    cp "$APPDIR/usr/share/icons/hicolor/256x256/apps/ObsidianDragon.png" "$APPDIR/" 2>/dev/null || \
        cp "$APPDIR/ObsidianDragon.svg" "$APPDIR/ObsidianDragon.png" 2>/dev/null || true

    # AppRun
    cat > "$APPDIR/AppRun" <<'APPRUN'
#!/bin/bash
SELF=$(readlink -f "$0")
HERE=${SELF%/*}
export DRAGONX_RES_PATH="${HERE}/usr/share/ObsidianDragon/res"
export LD_LIBRARY_PATH="${HERE}/usr/lib:${LD_LIBRARY_PATH}"
cd "${HERE}/usr/share/ObsidianDragon"
exec "${HERE}/usr/bin/ObsidianDragon" "$@"
APPRUN
    chmod +x "$APPDIR/AppRun"

    # Bundle SDL3
    for lib in libSDL3.so; do
        local lp
        lp=$(ldconfig -p 2>/dev/null | grep "$lib" | head -1 | awk '{print $NF}')
        [[ -n "$lp" && -f "$lp" ]] && cp "$lp" "$APPDIR/usr/lib/" 2>/dev/null || true
    done
    [[ -f "$bd/_deps/sdl3-build/libSDL3.so" ]] && cp "$bd/_deps/sdl3-build/libSDL3.so"* "$APPDIR/usr/lib/" 2>/dev/null || true

    # appimagetool
    local APPIMAGETOOL=""
    if command -v appimagetool &>/dev/null; then
        APPIMAGETOOL="appimagetool"
    elif [[ -f "$bd/appimagetool-x86_64.AppImage" ]]; then
        APPIMAGETOOL="$bd/appimagetool-x86_64.AppImage"
    else
        info "Downloading appimagetool ..."
        wget -q -O "$bd/appimagetool-x86_64.AppImage" \
            "https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage"
        chmod +x "$bd/appimagetool-x86_64.AppImage"
        APPIMAGETOOL="$bd/appimagetool-x86_64.AppImage"
    fi

    local ARCH
    ARCH=$(uname -m)
    local IMG_NAME="DragonX_Wallet-${VERSION}-${ARCH}.AppImage"
    cd "$bd"
    ARCH="$ARCH" "$APPIMAGETOOL" "$APPDIR" "$IMG_NAME" 2>/dev/null && {
        cp "$IMG_NAME" "$out/"
        info "AppImage: $out/$IMG_NAME ($(du -h "$IMG_NAME" | cut -f1))"
    } || warn "AppImage creation failed (appimagetool issue) — raw binary still in release/linux/"

    # Clean up: keep only AppImage + raw binary in release/linux/
    if ls "$out"/*.AppImage 1>/dev/null 2>&1; then
        # AppImage succeeded — remove everything except AppImage and the binary
        find "$out" -maxdepth 1 -type f ! -name '*.AppImage' ! -name 'ObsidianDragon' -delete
        rm -rf "$out/res" 2>/dev/null
    fi

    info "Linux release artifacts: $out/"
    ls -lh "$out/"
}

# ═══════════════════════════════════════════════════════════════════════════════
#  RELEASE: WINDOWS  —  mingw-w64 cross-compile + INCBIN embedding
# ═══════════════════════════════════════════════════════════════════════════════
build_release_win() {
    header "Release: Windows x86_64 (cross-compile)"
    local bd="$SCRIPT_DIR/build/windows"
    local out="$SCRIPT_DIR/release/windows"

    if $CLEAN; then
        info "Cleaning $bd ..."; rm -rf "$bd"
    fi
    mkdir -p "$bd" && cd "$bd"

    # ── Find MinGW ───────────────────────────────────────────────────────────
    local MINGW_GCC="" MINGW_GXX=""
    if command -v x86_64-w64-mingw32-gcc-posix &>/dev/null; then
        MINGW_GCC="x86_64-w64-mingw32-gcc-posix"
        MINGW_GXX="x86_64-w64-mingw32-g++-posix"
        info "Using POSIX thread model"
    elif command -v x86_64-w64-mingw32-gcc &>/dev/null; then
        MINGW_GCC="x86_64-w64-mingw32-gcc"
        MINGW_GXX="x86_64-w64-mingw32-g++"
        if x86_64-w64-mingw32-gcc -v 2>&1 | grep -q "posix"; then
            info "Using POSIX thread model"
        else
            warn "Using win32 thread model — may have threading issues"
            warn "Switch: sudo update-alternatives --set x86_64-w64-mingw32-gcc /usr/bin/x86_64-w64-mingw32-gcc-posix"
        fi
    else
        err "mingw-w64 not found!  Install: sudo apt install mingw-w64"
        exit 1
    fi

    # ── Toolchain file ───────────────────────────────────────────────────────
    cat > "$bd/mingw-toolchain.cmake" <<TOOLCHAIN
set(CMAKE_SYSTEM_NAME Windows)
set(CMAKE_SYSTEM_PROCESSOR x86_64)
set(CMAKE_C_COMPILER $MINGW_GCC)
set(CMAKE_CXX_COMPILER $MINGW_GXX)
set(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
set(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_EXE_LINKER_FLAGS "-static -static-libgcc -static-libstdc++ -Wl,-Bstatic,--whole-archive -lwinpthread -Wl,--no-whole-archive")
set(CMAKE_CXX_FLAGS "\${CMAKE_CXX_FLAGS} -static")
set(CMAKE_C_FLAGS "\${CMAKE_C_FLAGS} -static")
set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
set(BUILD_SHARED_LIBS OFF)
TOOLCHAIN

    # ── INCBIN embedded resources ────────────────────────────────────────────
    info "Generating embedded resources (INCBIN) ..."
    local GEN="$bd/generated"
    local RES="$GEN/res"
    mkdir -p "$RES"

    SAPLING_SPEND="" SAPLING_OUTPUT="" ASMAP_DAT=""
    find_sapling_params || true
    find_asmap || true

    if [[ -n "$SAPLING_SPEND" && -n "$SAPLING_OUTPUT" ]]; then
        cp -f "$SAPLING_SPEND"  "$RES/sapling-spend.params"
        cp -f "$SAPLING_OUTPUT" "$RES/sapling-output.params"

        cat > "$GEN/embedded_data.h" <<HDR
// Auto-generated — DO NOT EDIT (build.sh --win-release)
#pragma once
#include <cstdint>
#include <cstddef>
#include "incbin.h"

INCBIN(sapling_spend_params,  "$RES/sapling-spend.params");
INCBIN(sapling_output_params, "$RES/sapling-output.params");
HDR

        if [[ -n "$ASMAP_DAT" ]]; then
            cp -f "$ASMAP_DAT" "$RES/asmap.dat"
            echo "INCBIN(asmap_dat, \"$RES/asmap.dat\");" >> "$GEN/embedded_data.h"
        else
            echo 'extern "C" { static const uint8_t* g_asmap_dat_data = nullptr; }' >> "$GEN/embedded_data.h"
            echo 'static const unsigned int g_asmap_dat_size = 0;' >> "$GEN/embedded_data.h"
        fi

        # ── Daemon binaries ──────────────────────────────────────────────
        local DD="$SCRIPT_DIR/prebuilt-binaries/dragonxd-win"
        if [[ -d "$DD" && -f "$DD/hushd.exe" ]]; then
            info "Embedding daemon binaries ..."
            echo -e "\n#define HAS_EMBEDDED_DAEMON 1\n" >> "$GEN/embedded_data.h"
            for f in hushd.exe hush-cli.exe hush-tx.exe dragonxd.bat dragonx-cli.bat; do
                local sym=$(echo "$f" | sed 's/[^a-zA-Z0-9]/_/g')
                if [[ -f "$DD/$f" ]]; then
                    cp -f "$DD/$f" "$RES/$f"
                    info "  Staged $f ($(du -h "$DD/$f" | cut -f1))"
                    echo "INCBIN(${sym}, \"$RES/$f\");" >> "$GEN/embedded_data.h"
                else
                    echo "extern \"C\" { static const uint8_t* g_${sym}_data = nullptr; }" >> "$GEN/embedded_data.h"
                    echo "static const unsigned int g_${sym}_size = 0;" >> "$GEN/embedded_data.h"
                fi
            done
        else
            warn "prebuilt-binaries/dragonxd-win/ not found — wallet-only build"
        fi

        # ── xmrig binary (from prebuilt-binaries/xmrig-hac/) ────────────────
        local XMRIG_DIR="$SCRIPT_DIR/prebuilt-binaries/xmrig-hac"
        if [[ -f "$XMRIG_DIR/xmrig.exe" ]]; then
            cp -f "$XMRIG_DIR/xmrig.exe" "$RES/xmrig.exe"
            info "  Staged xmrig.exe ($(du -h "$XMRIG_DIR/xmrig.exe" | cut -f1))"
            echo -e "\n#define HAS_EMBEDDED_XMRIG 1" >> "$GEN/embedded_data.h"
            echo "INCBIN(xmrig_exe, \"$RES/xmrig.exe\");" >> "$GEN/embedded_data.h"
        else
            echo 'extern "C" { static const uint8_t* g_xmrig_exe_data = nullptr; }' >> "$GEN/embedded_data.h"
            echo 'static const unsigned int g_xmrig_exe_size = 0;' >> "$GEN/embedded_data.h"
        fi

        # ── Theme images ─────────────────────────────────────────────────
        echo -e "\n// ---- Embedded theme images ----" >> "$GEN/embedded_data.h"
        local IMAGE_TABLE="" IMAGE_COUNT=0
        for dir in "$SCRIPT_DIR/res/img/backgrounds/texture" "$SCRIPT_DIR/res/img/backgrounds/gradient" "$SCRIPT_DIR/res/img/logos"; do
            [[ -d "$dir" ]] || continue
            for img in "$dir"/*.png; do
                [[ -f "$img" ]] || continue
                local bn=$(basename "$img")
                local sym=$(echo "$bn" | sed 's/[^a-zA-Z0-9]/_/g')
                cp -f "$img" "$RES/$bn"
                echo "INCBIN(img_${sym}, \"$RES/$bn\");" >> "$GEN/embedded_data.h"
                IMAGE_TABLE+="    { g_img_${sym}_data, g_img_${sym}_size, \"${bn}\" },\n"
                IMAGE_COUNT=$((IMAGE_COUNT + 1))
            done
        done
        echo "" >> "$GEN/embedded_data.h"
        echo "#define HAS_EMBEDDED_IMAGES 1" >> "$GEN/embedded_data.h"
        echo "#define EMBEDDED_IMAGE_COUNT $IMAGE_COUNT" >> "$GEN/embedded_data.h"
        echo "#define HAS_EMBEDDED_GRADIENT 1" >> "$GEN/embedded_data.h"
        echo "#define HAS_EMBEDDED_LOGO 1" >> "$GEN/embedded_data.h"
        # Backward compat aliases
        echo "static const uint8_t* g_dark_gradient_png_data = g_img_dark_gradient_png_data;" >> "$GEN/embedded_data.h"
        echo "static const unsigned int g_dark_gradient_png_size = g_img_dark_gradient_png_size;" >> "$GEN/embedded_data.h"
        echo "static const uint8_t* g_logo_ObsidianDragon_dark_png_data = g_img_logo_ObsidianDragon_dark_png_data;" >> "$GEN/embedded_data.h"
        echo "static const unsigned int g_logo_ObsidianDragon_dark_png_size = g_img_logo_ObsidianDragon_dark_png_size;" >> "$GEN/embedded_data.h"
        echo "" >> "$GEN/embedded_data.h"
        echo "struct EmbeddedImageEntry { const uint8_t* data; unsigned int size; const char* filename; };" >> "$GEN/embedded_data.h"
        echo "static const EmbeddedImageEntry s_embedded_images[] = {" >> "$GEN/embedded_data.h"
        echo -e "$IMAGE_TABLE" >> "$GEN/embedded_data.h"
        echo "    { nullptr, 0, nullptr }" >> "$GEN/embedded_data.h"
        echo "};" >> "$GEN/embedded_data.h"

        # ── Overlay themes ───────────────────────────────────────────────
        echo -e "\n// ---- Bundled overlay themes ----" >> "$GEN/embedded_data.h"
        local THEME_TABLE="" THEME_COUNT=0
        for tf in "$SCRIPT_DIR/res/themes"/*.toml; do
            local tbn=$(basename "$tf")
            [[ "$tbn" == "ui.toml" ]] && continue
            local tsym=$(echo "$tbn" | sed 's/[^a-zA-Z0-9]/_/g')
            cp -f "$tf" "$RES/$tbn"
            echo "INCBIN(theme_${tsym}, \"$RES/$tbn\");" >> "$GEN/embedded_data.h"
            THEME_TABLE+="    { g_theme_${tsym}_data, g_theme_${tsym}_size, \"${tbn}\" },\n"
            THEME_COUNT=$((THEME_COUNT + 1))
        done
        echo "" >> "$GEN/embedded_data.h"
        echo "#define EMBEDDED_THEME_COUNT $THEME_COUNT" >> "$GEN/embedded_data.h"
        echo "struct EmbeddedThemeEntry { const uint8_t* data; unsigned int size; const char* filename; };" >> "$GEN/embedded_data.h"
        echo "static const EmbeddedThemeEntry s_embedded_themes[] = {" >> "$GEN/embedded_data.h"
        echo -e "$THEME_TABLE" >> "$GEN/embedded_data.h"
        echo "    { nullptr, 0, nullptr }" >> "$GEN/embedded_data.h"
        echo "};" >> "$GEN/embedded_data.h"

        info "Embedded resources header generated"
    else
        warn "Building WITHOUT embedded resources (Sapling params not found)"
    fi

    # ── Fetch libsodium for Windows if needed ──────────────────────────────
    if [[ ! -f "$SCRIPT_DIR/libs/libsodium-win/lib/libsodium.a" ]]; then
        info "Fetching libsodium for Windows ..."
        "$SCRIPT_DIR/scripts/fetch-libsodium.sh" --win
    fi

    # ── CMake + build ────────────────────────────────────────────────────────
    info "Configuring (cross-compile) ..."
    cmake "$SCRIPT_DIR" \
        -DCMAKE_TOOLCHAIN_FILE="$bd/mingw-toolchain.cmake" \
        -DCMAKE_BUILD_TYPE=Release \
        -DDRAGONX_USE_SYSTEM_SDL3=OFF

    info "Building with $JOBS jobs ..."
    cmake --build . -j "$JOBS"

    [[ -f "bin/ObsidianDragon.exe" ]] || { err "Windows build failed"; exit 1; }
    info "Binary: $(du -h bin/ObsidianDragon.exe | cut -f1)"

    # ── Package: release/windows/ ────────────────────────────────────────────
    rm -rf "$out"
    mkdir -p "$out"

    local DIST="DragonX-Wallet-Windows-x64"
    local dist_dir="$out/$DIST"
    mkdir -p "$dist_dir"
    cp bin/ObsidianDragon.exe "$dist_dir/"

    local DD="$SCRIPT_DIR/prebuilt-binaries/dragonxd-win"
    for f in dragonxd.bat dragonx-cli.bat hushd.exe hush-cli.exe hush-tx.exe; do
        [[ -f "$DD/$f" ]] && cp "$DD/$f" "$dist_dir/"
    done

    cat > "$dist_dir/README.txt" <<'README'
DragonX Wallet - Windows Edition
================================

SINGLE-FILE DISTRIBUTION
========================
This wallet is a true single-file executable with all resources embedded.
Just run ObsidianDragon.exe — no additional files needed!

On first run, the wallet will automatically extract:
- Sapling parameters to %APPDATA%\ZcashParams\
- asmap.dat to %APPDATA%\Hush\DRAGONX\

For support: https://git.hush.is/hush/ObsidianDragon
README

    # Copy single-file exe to release dir
    cp bin/ObsidianDragon.exe "$out/"

    if command -v zip &>/dev/null; then
        (cd "$out" && zip -r "$DIST.zip" "$DIST")
        info "Zip: $out/$DIST.zip ($(du -h "$out/$DIST.zip" | cut -f1))"
        # Clean up: keep .zip + single-file exe, remove loose directory
        rm -rf "$dist_dir"
    fi

    info "Windows release artifacts: $out/"
    ls -lh "$out/"
}

# ═══════════════════════════════════════════════════════════════════════════════
#  RELEASE: macOS  —  .app bundle + DMG
#
#  Cross-compile from Linux:
#    1. Install osxcross: https://github.com/tpoechtrager/osxcross
#       export OSXCROSS="$HOME/osxcross"   (or wherever you installed it)
#    2. For DMG: sudo apt install genisoimage
#    3. For .icns icons: sudo apt install icnsutils
#    4. Place macOS daemon binaries in prebuilt-binaries/dragonxd-mac/ (optional)
#
#  Native on macOS:
#    Works out of the box. brew install create-dmg for prettier DMGs.
# ═══════════════════════════════════════════════════════════════════════════════
build_release_mac() {
    local IS_CROSS=false
    local MAC_ARCH="x86_64"

    # Detect cross-compilation from Linux
    if [[ "$(uname -s)" == "Linux" ]]; then
        IS_CROSS=true
        info "Cross-compiling for macOS from Linux"

        # Find osxcross
        if [[ -z "${OSXCROSS:-}" ]]; then
            # Try common locations
            for try_path in "$SCRIPT_DIR/external/osxcross" "$HOME/osxcross" "/opt/osxcross" "/usr/local/osxcross"; do
                if [[ -d "$try_path/target" ]]; then
                    OSXCROSS="$try_path"
                    break
                fi
            done
        fi

        if [[ -z "${OSXCROSS:-}" || ! -d "${OSXCROSS}/target" ]]; then
            err "osxcross not found!  Set OSXCROSS=/path/to/osxcross or install it:"
            echo ""
            echo "  git clone https://github.com/tpoechtrager/osxcross"
            echo "  cd osxcross"
            echo "  # Place MacOSX SDK (e.g. MacOSX13.0.sdk.tar.xz) in tarballs/"
            echo "  UNATTENDED=1 ./build.sh"
            echo "  export OSXCROSS=\$PWD"
            echo ""
            exit 1
        fi
        info "Using osxcross at: $OSXCROSS"
        export PATH="$OSXCROSS/target/bin:$PATH"

        # Find the right compiler triple
        local OSXCROSS_CC="" OSXCROSS_CXX="" OSXCROSS_TRIPLE=""

        # Look for full-triple compilers first (e.g. x86_64-apple-darwin22.4-clang++)
        local found_triple
        found_triple=$(ls "$OSXCROSS/target/bin/"x86_64-apple-darwin*-clang++ 2>/dev/null | head -1)
        if [[ -n "$found_triple" ]]; then
            OSXCROSS_TRIPLE=$(basename "$found_triple" | sed 's/-clang++$//')
            OSXCROSS_CC="$OSXCROSS/target/bin/${OSXCROSS_TRIPLE}-clang"
            OSXCROSS_CXX="$OSXCROSS/target/bin/${OSXCROSS_TRIPLE}-clang++"
            MAC_ARCH="x86_64"
        fi
        # Prefer arm64 if available (Apple Silicon)
        found_triple=$(ls "$OSXCROSS/target/bin/"aarch64-apple-darwin*-clang++ 2>/dev/null | head -1)
        if [[ -n "$found_triple" ]]; then
            OSXCROSS_TRIPLE=$(basename "$found_triple" | sed 's/-clang++$//')
            OSXCROSS_CC="$OSXCROSS/target/bin/${OSXCROSS_TRIPLE}-clang"
            OSXCROSS_CXX="$OSXCROSS/target/bin/${OSXCROSS_TRIPLE}-clang++"
            MAC_ARCH="arm64"
        fi
        # Also try o64/oa64 wrapper — but resolve the underlying triple
        if [[ -z "$OSXCROSS_CXX" ]]; then
            if command -v o64-clang++ &>/dev/null; then
                # Resolve the x86_64 triple from binutils
                OSXCROSS_TRIPLE=$(ls "$OSXCROSS/target/bin/"x86_64-apple-darwin*-ar 2>/dev/null | head -1 | xargs basename | sed 's/-ar$//')
                OSXCROSS_CC="o64-clang"
                OSXCROSS_CXX="o64-clang++"
                MAC_ARCH="x86_64"
            elif command -v oa64-clang++ &>/dev/null; then
                OSXCROSS_TRIPLE=$(ls "$OSXCROSS/target/bin/"aarch64-apple-darwin*-ar 2>/dev/null | head -1 | xargs basename | sed 's/-ar$//')
                OSXCROSS_CC="oa64-clang"
                OSXCROSS_CXX="oa64-clang++"
                MAC_ARCH="arm64"
            fi
        fi

        if [[ -z "$OSXCROSS_CXX" ]]; then
            err "Could not find osxcross compilers in PATH"
            echo "  Ensure \$OSXCROSS/target/bin contains *-apple-darwin*-clang++"
            exit 1
        fi
        info "macOS cross-compiler: $OSXCROSS_CXX (arch: $MAC_ARCH)"
    else
        MAC_ARCH=$(uname -m)
    fi

    header "Release: macOS ($MAC_ARCH$(${IS_CROSS} && echo ' — cross-compile'))"
    local bd="$SCRIPT_DIR/build/mac"
    local out="$SCRIPT_DIR/release/mac"

    if $CLEAN; then
        info "Cleaning $bd ..."; rm -rf "$bd"
    fi
    mkdir -p "$bd" && cd "$bd"

    # ── Compile ──────────────────────────────────────────────────────────────
    if $IS_CROSS; then
        # OSXCROSS_TRIPLE already resolved during compiler detection above
        local OSXCROSS_SDK_PATH
        OSXCROSS_SDK_PATH=$(ls -d "$OSXCROSS"/target/SDK/MacOSX*.sdk 2>/dev/null | head -1)

        # Generate osxcross toolchain file
        cat > "$bd/osxcross-toolchain.cmake" <<TOOLCHAIN
set(CMAKE_SYSTEM_NAME Darwin)
set(CMAKE_SYSTEM_PROCESSOR ${MAC_ARCH})

# Compilers
set(CMAKE_C_COMPILER   ${OSXCROSS_CC})
set(CMAKE_CXX_COMPILER ${OSXCROSS_CXX})
set(CMAKE_OBJC_COMPILER ${OSXCROSS_CC})
set(CMAKE_OBJCXX_COMPILER ${OSXCROSS_CXX})

# SDK sysroot
set(CMAKE_OSX_SYSROOT "${OSXCROSS_SDK_PATH}")

# Cross-compilation binutils
set(CMAKE_AR              "${OSXCROSS}/target/bin/${OSXCROSS_TRIPLE}-ar"                CACHE FILEPATH "ar")
set(CMAKE_RANLIB           "${OSXCROSS}/target/bin/${OSXCROSS_TRIPLE}-ranlib"            CACHE FILEPATH "ranlib")
set(CMAKE_STRIP            "${OSXCROSS}/target/bin/${OSXCROSS_TRIPLE}-strip"             CACHE FILEPATH "strip")
set(CMAKE_INSTALL_NAME_TOOL "${OSXCROSS}/target/bin/${OSXCROSS_TRIPLE}-install_name_tool" CACHE FILEPATH "install_name_tool")
set(CMAKE_OTOOL            "${OSXCROSS}/target/bin/${OSXCROSS_TRIPLE}-otool"             CACHE FILEPATH "otool")
set(CMAKE_LIBTOOL          "${OSXCROSS}/target/bin/${OSXCROSS_TRIPLE}-libtool"           CACHE FILEPATH "libtool")

# Search paths
set(CMAKE_FIND_ROOT_PATH
  "${OSXCROSS_SDK_PATH}"
  "${OSXCROSS}/target/macports/pkgs"
  "${OSXCROSS}/target/macports/pkgs/opt/local"
)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)

set(CMAKE_OSX_DEPLOYMENT_TARGET 11.0)
TOOLCHAIN

        # Find compiler-rt builtins for macOS
        local COMPILER_RT=""
        local CLANG_RESOURCE_DIR
        CLANG_RESOURCE_DIR=$("$OSXCROSS_CC" -print-resource-dir 2>/dev/null || echo "")
        if [[ -n "$CLANG_RESOURCE_DIR" && -f "$CLANG_RESOURCE_DIR/lib/darwin/libclang_rt.osx.a" ]]; then
            COMPILER_RT="$CLANG_RESOURCE_DIR/lib/darwin/libclang_rt.osx.a"
        elif [[ -f "$OSXCROSS/build/compiler-rt/compiler-rt/build/lib/darwin/libclang_rt.osx.a" ]]; then
            COMPILER_RT="$OSXCROSS/build/compiler-rt/compiler-rt/build/lib/darwin/libclang_rt.osx.a"
        fi

        # Fetch libsodium for macOS if needed
        if [[ ! -f "$SCRIPT_DIR/libs/libsodium-mac/lib/libsodium.a" ]]; then
            info "Fetching libsodium for macOS ..."
            "$SCRIPT_DIR/scripts/fetch-libsodium.sh" --mac
        fi

        info "Configuring (cross-compile via osxcross) ..."
        cmake "$SCRIPT_DIR" \
            -DCMAKE_TOOLCHAIN_FILE="$bd/osxcross-toolchain.cmake" \
            -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_CXX_FLAGS_RELEASE="-O3 -DNDEBUG" \
            -DDRAGONX_USE_SYSTEM_SDL3=OFF \
            -DCMAKE_OSX_DEPLOYMENT_TARGET=11.0 \
            ${COMPILER_RT:+-DOSXCROSS_COMPILER_RT="$COMPILER_RT"}
    else
        info "Configuring (native) ..."
        cmake "$SCRIPT_DIR" \
            -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_CXX_FLAGS_RELEASE="-O3 -DNDEBUG" \
            -DDRAGONX_USE_SYSTEM_SDL3=OFF \
            -DCMAKE_OSX_DEPLOYMENT_TARGET=11.0
    fi

    info "Building with $JOBS jobs ..."
    cmake --build . -j "$JOBS"

    [[ -f "bin/ObsidianDragon" ]] || { err "macOS build failed"; exit 1; }

    # Strip — use osxcross strip for cross-builds
    if $IS_CROSS; then
        local STRIP_CMD="${OSXCROSS}/target/bin/${OSXCROSS_TRIPLE}-strip"
        if [[ -x "$STRIP_CMD" ]]; then
            info "Stripping (osxcross) ..."
            "$STRIP_CMD" bin/ObsidianDragon
        else
            warn "osxcross strip not found at $STRIP_CMD — skipping"
        fi
    else
        info "Stripping ..."
        strip bin/ObsidianDragon
    fi
    info "Binary: $(du -h bin/ObsidianDragon | cut -f1)"

    # ── Create .app bundle ───────────────────────────────────────────────────
    rm -rf "$out"
    mkdir -p "$out"

    local APP="$out/ObsidianDragon.app"
    local CONTENTS="$APP/Contents"
    local MACOS="$CONTENTS/MacOS"
    local RESOURCES="$CONTENTS/Resources"
    local FRAMEWORKS="$CONTENTS/Frameworks"

    mkdir -p "$MACOS" "$RESOURCES/res" "$FRAMEWORKS"

    # Main binary
    cp bin/ObsidianDragon "$MACOS/"
    chmod +x "$MACOS/ObsidianDragon"

    # Resources
    cp -r bin/res/* "$RESOURCES/res/" 2>/dev/null || true

    # Daemon binaries (macOS native, from dragonxd-mac/)
    local daemon_dir="$SCRIPT_DIR/prebuilt-binaries/dragonxd-mac"
    if [[ -d "$daemon_dir" ]]; then
        for f in hush-arrakis-chain hushd hush-cli hush-tx dragonxd; do
            [[ -f "$daemon_dir/$f" ]] && { cp "$daemon_dir/$f" "$MACOS/"; chmod +x "$MACOS/$f"; info "  Bundled $f"; }
        done
    elif ! $IS_CROSS; then
        # Native macOS: try standard paths
        local launcher_paths=(
            "$SCRIPT_DIR/../hush-arrakis-chain"
            "$HOME/hush3/src/hush-arrakis-chain"
        )
        for p in "${launcher_paths[@]}"; do
            [[ -f "$p" ]] && { cp "$p" "$MACOS/hush-arrakis-chain"; chmod +x "$MACOS/hush-arrakis-chain"; info "  Bundled hush-arrakis-chain"; break; }
        done
        local hushd_paths=(
            "$SCRIPT_DIR/../hushd"
            "$HOME/hush3/src/hushd"
        )
        for p in "${hushd_paths[@]}"; do
            [[ -f "$p" ]] && { cp "$p" "$MACOS/hushd"; chmod +x "$MACOS/hushd"; info "  Bundled hushd"; break; }
        done
    else
        warn "prebuilt-binaries/dragonxd-mac/ not found — place macOS daemon binaries there for bundling"
    fi

    # asmap.dat
    find_asmap 2>/dev/null && cp "$ASMAP_DAT" "$RESOURCES/asmap.dat" && info "  Bundled asmap.dat"

    # Bundle SDL3 dylib
    local sdl_dylib=""
    for candidate in \
        "$bd/_deps/sdl3-build/libSDL3.dylib" \
        "$bd/_deps/sdl3-build/libSDL3.0.dylib" \
        "/usr/local/lib/libSDL3.dylib" \
        "/opt/homebrew/lib/libSDL3.dylib"; do
        if [[ -f "$candidate" ]]; then
            sdl_dylib="$candidate"
            break
        fi
    done
    if [[ -n "$sdl_dylib" ]]; then
        cp "$sdl_dylib" "$FRAMEWORKS/"
        local sdl_name=$(basename "$sdl_dylib")
        # Fix the rpath so the binary finds SDL3 in Frameworks/
        if $IS_CROSS; then
            local INSTALL_NAME_TOOL="${OSXCROSS}/target/bin/${OSXCROSS_TRIPLE}-install_name_tool"
            [[ -x "$INSTALL_NAME_TOOL" ]] && "$INSTALL_NAME_TOOL" -change "@rpath/$sdl_name" "@executable_path/../Frameworks/$sdl_name" "$MACOS/ObsidianDragon" 2>/dev/null || true
        else
            install_name_tool -change "@rpath/$sdl_name" "@executable_path/../Frameworks/$sdl_name" "$MACOS/ObsidianDragon" 2>/dev/null || true
        fi
        info "  Bundled $sdl_name"
    fi

    # Launcher script (ensures working dir + dylib path)
    mv "$MACOS/ObsidianDragon" "$MACOS/ObsidianDragon.bin"
    cat > "$MACOS/ObsidianDragon" <<'LAUNCH'
#!/bin/bash
DIR="$(cd "$(dirname "$0")" && pwd)"
export DYLD_LIBRARY_PATH="$DIR/../Frameworks:$DYLD_LIBRARY_PATH"
export DRAGONX_RES_PATH="$DIR/../Resources/res"
cd "$DIR/../Resources"
exec "$DIR/ObsidianDragon.bin" "$@"
LAUNCH
    chmod +x "$MACOS/ObsidianDragon"

    # Info.plist
    cat > "$CONTENTS/Info.plist" <<PLIST
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
  "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>CFBundleName</key>
    <string>DragonX Wallet</string>
    <key>CFBundleDisplayName</key>
    <string>DragonX Wallet</string>
    <key>CFBundleIdentifier</key>
    <string>is.hush.dragonx</string>
    <key>CFBundleVersion</key>
    <string>${VERSION}</string>
    <key>CFBundleShortVersionString</key>
    <string>${VERSION}</string>
    <key>CFBundleExecutable</key>
    <string>ObsidianDragon</string>
    <key>CFBundleIconFile</key>
    <string>ObsidianDragon</string>
    <key>CFBundlePackageType</key>
    <string>APPL</string>
    <key>CFBundleSignature</key>
    <string>DRGX</string>
    <key>LSMinimumSystemVersion</key>
    <string>11.0</string>
    <key>NSHighResolutionCapable</key>
    <true/>
    <key>NSSupportsAutomaticGraphicsSwitching</key>
    <true/>
    <key>LSApplicationCategoryType</key>
    <string>public.app-category.finance</string>
</dict>
</plist>
PLIST

    # ── Icon (.icns) ─────────────────────────────────────────────────────────
    if [[ -f "$SCRIPT_DIR/res/img/ObsidianDragon.icns" ]]; then
        cp "$SCRIPT_DIR/res/img/ObsidianDragon.icns" "$RESOURCES/ObsidianDragon.icns"
    elif [[ -f "$SCRIPT_DIR/res/icons/dragonx-256.png" ]]; then
        if command -v iconutil &>/dev/null && command -v sips &>/dev/null; then
            # Native macOS: sips + iconutil
            local iconset="$bd/ObsidianDragon.iconset"
            mkdir -p "$iconset"
            local src="$SCRIPT_DIR/res/icons/dragonx-256.png"
            for sz in 16 32 64 128 256; do
                sips -z $sz $sz "$src" --out "$iconset/icon_${sz}x${sz}.png" &>/dev/null || true
            done
            for sz in 16 32 128; do
                local r=$((sz * 2))
                sips -z $r $r "$src" --out "$iconset/icon_${sz}x${sz}@2x.png" &>/dev/null || true
            done
            iconutil -c icns "$iconset" -o "$RESOURCES/ObsidianDragon.icns" 2>/dev/null || true
            rm -rf "$iconset"
        elif command -v png2icns &>/dev/null; then
            # Linux: png2icns from icnsutils  (sudo apt install icnsutils)
            info "Creating .icns with png2icns ..."
            local src="$SCRIPT_DIR/res/icons/dragonx-256.png"
            # png2icns needs specific sizes; resize with ImageMagick if available
            if command -v convert &>/dev/null; then
                local icondir="$bd/icon-sizes"
                mkdir -p "$icondir"
                for sz in 16 32 48 128 256; do
                    convert "$src" -resize ${sz}x${sz} "$icondir/icon_${sz}.png" 2>/dev/null || true
                done
                png2icns "$RESOURCES/ObsidianDragon.icns" "$icondir"/icon_*.png 2>/dev/null || true
                rm -rf "$icondir"
            else
                # Just use the 256px as-is
                png2icns "$RESOURCES/ObsidianDragon.icns" "$src" 2>/dev/null || true
            fi
        else
            warn "No .icns tool found (install: sudo apt install icnsutils)"
        fi
    fi

    info ".app bundle created: $APP"

    # ── Create DMG ───────────────────────────────────────────────────────────
    local DMG_NAME="DragonX_Wallet-${VERSION}-macOS-${MAC_ARCH}.dmg"

    if command -v create-dmg &>/dev/null; then
        # create-dmg (works on macOS; also available on Linux via npm)
        info "Creating DMG with create-dmg ..."
        create-dmg \
            --volname "DragonX Wallet" \
            --volicon "$RESOURCES/ObsidianDragon.icns" \
            --window-pos 200 120 \
            --window-size 600 400 \
            --icon-size 100 \
            --icon "ObsidianDragon.app" 150 190 \
            --app-drop-link 450 190 \
            --no-internet-enable \
            "$out/$DMG_NAME" \
            "$APP" 2>/dev/null && {
            info "DMG: $out/$DMG_NAME ($(du -h "$out/$DMG_NAME" | cut -f1))"
        } || warn "create-dmg failed — .app bundle still available"
    elif command -v hdiutil &>/dev/null; then
        # Native macOS
        info "Creating DMG with hdiutil ..."
        local staging="$bd/dmg-staging"
        rm -rf "$staging"
        mkdir -p "$staging"
        cp -a "$APP" "$staging/"
        ln -s /Applications "$staging/Applications"
        hdiutil create -volname "DragonX Wallet" \
            -srcfolder "$staging" \
            -ov -format UDZO \
            "$out/$DMG_NAME" 2>/dev/null && {
            info "DMG: $out/$DMG_NAME ($(du -h "$out/$DMG_NAME" | cut -f1))"
        } || warn "hdiutil failed — .app bundle still available"
        rm -rf "$staging"
    elif command -v genisoimage &>/dev/null; then
        # Linux fallback: genisoimage produces a hybrid ISO/DMG that macOS can open
        info "Creating DMG with genisoimage (Linux) ..."
        local staging="$bd/dmg-staging"
        rm -rf "$staging"
        mkdir -p "$staging"
        cp -a "$APP" "$staging/"
        # Can't create a real symlink to /Applications in an ISO, but the .app
        # is the important part — users drag it to Applications manually.
        genisoimage -V "DragonX Wallet" \
            -D -R -apple -no-pad \
            -o "$out/$DMG_NAME" \
            "$staging" 2>/dev/null && {
            info "DMG: $out/$DMG_NAME ($(du -h "$out/$DMG_NAME" | cut -f1))"
            info "  (ISO/HFS hybrid — mountable on macOS)"
        } || warn "genisoimage failed — .app bundle still available"
        rm -rf "$staging"
    else
        warn "No DMG tool found — .app bundle still available"
        echo ""
        echo "  To create DMGs on Linux, install one of:"
        echo "    sudo apt install genisoimage          # Basic DMG (recommended)"
        echo "    sudo apt install icnsutils             # For .icns icon creation"
        echo ""
    fi

    info "macOS release artifacts: $out/"
    ls -lhR "$out/" 2>/dev/null | head -30
}

# ═══════════════════════════════════════════════════════════════════════════════
#  MAIN
# ═══════════════════════════════════════════════════════════════════════════════
echo -e "${GREEN}DragonX Wallet v${VERSION} — Unified Build${NC}"
echo "─────────────────────────────────────────"

$DO_DEV   && build_dev
$DO_LINUX && build_release_linux
$DO_WIN   && build_release_win
$DO_MAC   && build_release_mac

header "Done"
if $DO_LINUX || $DO_WIN || $DO_MAC; then
    echo -e "  Release artifacts in: ${GREEN}$SCRIPT_DIR/release/${NC}"
    [[ -d "$SCRIPT_DIR/release/linux" ]]   && echo -e "    ${CYAN}linux/${NC}     — AppImage + binary"
    [[ -d "$SCRIPT_DIR/release/windows" ]] && echo -e "    ${CYAN}windows/${NC}   — .exe + .zip"
    [[ -d "$SCRIPT_DIR/release/mac" ]]     && echo -e "    ${CYAN}mac/${NC}       — .app + .dmg"
fi