#!/usr/bin/env bash
#
# 在 macOS 上把 Parking Simulator 打包成可双击运行的 .app（免装 JDK）。
# 产物路径：dist/mac/ParkingSimulator.app
#
# 依赖：
#   - JDK 25（含 jlink / jpackage）
#   - Maven 3.9+
#
# 进阶：取消最后一段注释可一并生成 .dmg 安装包。

set -euo pipefail
cd "$(dirname "$0")/.."

APP_NAME="ParkingSimulator"
APP_VERSION="1.0.0"
APP_VENDOR="Fujica"
MAIN_MODULE="com.fujica.parkingtool"
MAIN_CLASS="com.fujica.parkingtool.App"

OUT_DIR="dist/mac"
RUNTIME_DIR="target/runtime-mac"

# ---------------------------------------------------------------------------
# 强制把当前会话锁定到 JDK 25，避免 Maven 走到系统默认的 JDK 8 上
# 报错样例：Fatal error compiling: 无效的标记: --module-path（< JDK 9 的 javac）
# ---------------------------------------------------------------------------
detect_jdk25() {
    # 1) Apple 的 java_home 工具
    local home
    if home=$(/usr/libexec/java_home -v 25 2>/dev/null) && [[ -n "${home}" ]]; then
        echo "${home}"; return 0
    fi
    # 2) Fallback：扫 /Library/Java/JavaVirtualMachines/ 与 ~/Library/Java/JavaVirtualMachines/
    local cand
    for base in /Library/Java/JavaVirtualMachines "${HOME}/Library/Java/JavaVirtualMachines"; do
        for cand in "${base}"/jdk-25*.jdk "${base}"/temurin-25*.jdk "${base}"/zulu-25*.jdk; do
            if [[ -x "${cand}/Contents/Home/bin/javac" ]]; then
                echo "${cand}/Contents/Home"; return 0
            fi
        done
    done
    return 1
}

if ! JAVA_HOME=$(detect_jdk25); then
    echo "❌ 未找到 JDK 25，请先安装：" >&2
    echo "     brew install --cask temurin@25" >&2
    echo "   或从 https://adoptium.net/zh-CN/temurin/releases 下载 25 LTS。" >&2
    exit 1
fi
export JAVA_HOME
export PATH="${JAVA_HOME}/bin:${PATH}"
echo "    使用 JDK：${JAVA_HOME}"
javac -version

require() {
    command -v "$1" >/dev/null 2>&1 || {
        echo "❌ 缺少命令：$1" >&2
        exit 1
    }
}

require mvn
require jlink
require jpackage
require javac
require jar

echo "==> [1/5] Maven 构建 + 拉取依赖到 target/modules"
mvn -q -DskipTests clean package

MODULE_PATH="target/modules"

# 防御性清理：删掉 OpenJFX 偶尔会带过来的 < 1KB 空 stub jar，避免污染 module-path
find "${MODULE_PATH}" -name '*.jar' -size -1k -print -delete || true

# ---------------------------------------------------------------------------
# 给 Paho v3（automatic module）补一份真正的 module-info，否则 jlink 拒绝它。
# 关键点：必须包含
#   - uses    org.eclipse.paho.client.mqttv3.spi.NetworkModuleFactory
#   - provides ...with TCP / SSL / WebSocket / WebSocketSecure 4 个工厂
# 否则运行期会抛 ServiceConfigurationError: module ... does not declare `uses`
# ---------------------------------------------------------------------------
echo "==> [2/5] 给 Paho jar 注入 module-info"
PAHO_JAR=$(ls "${MODULE_PATH}"/org.eclipse.paho.client.mqttv3-*.jar 2>/dev/null | head -n 1)
if [[ -z "${PAHO_JAR}" || ! -f "${PAHO_JAR}" ]]; then
    echo "❌ 找不到 Paho mqttv3 jar 在 ${MODULE_PATH}/" >&2
    exit 1
fi
# 子 shell cd 之后还要能引用，转绝对路径
PAHO_JAR=$(cd "$(dirname "${PAHO_JAR}")" && pwd)/$(basename "${PAHO_JAR}")

PATCH_TMP=$(mktemp -d -t paho-modinfo.XXXXXX)
trap 'rm -rf "${PATCH_TMP}"' EXIT
EXP_DIR="${PATCH_TMP}/exploded"
mkdir -p "${EXP_DIR}"
( cd "${EXP_DIR}" && jar xf "${PAHO_JAR}" )

cat > "${PATCH_TMP}/module-info.java" <<'PAHO_MOD_INFO'
module org.eclipse.paho.client.mqttv3 {
    requires transitive java.logging;
    requires transitive java.prefs;

    exports org.eclipse.paho.client.mqttv3;
    exports org.eclipse.paho.client.mqttv3.internal;
    exports org.eclipse.paho.client.mqttv3.internal.security;
    exports org.eclipse.paho.client.mqttv3.internal.websocket;
    exports org.eclipse.paho.client.mqttv3.internal.wire;
    exports org.eclipse.paho.client.mqttv3.logging;
    exports org.eclipse.paho.client.mqttv3.persist;
    exports org.eclipse.paho.client.mqttv3.spi;
    exports org.eclipse.paho.client.mqttv3.util;

    uses org.eclipse.paho.client.mqttv3.spi.NetworkModuleFactory;

    provides org.eclipse.paho.client.mqttv3.spi.NetworkModuleFactory with
        org.eclipse.paho.client.mqttv3.internal.TCPNetworkModuleFactory,
        org.eclipse.paho.client.mqttv3.internal.SSLNetworkModuleFactory,
        org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketNetworkModuleFactory,
        org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketSecureNetworkModuleFactory;
}
PAHO_MOD_INFO

# 用解压后的目录做 patch，避免 javac 在 jar 上看不到内嵌包
javac --patch-module org.eclipse.paho.client.mqttv3="${EXP_DIR}" \
      -d "${PATCH_TMP}" "${PATCH_TMP}/module-info.java"
# 注入进 jar；如有旧的同名条目则覆盖
( cd "${PATCH_TMP}" && jar uf "${PAHO_JAR}" module-info.class )
echo "    Paho 已注入 module-info → $(basename "${PAHO_JAR}")"

# 自动发现需要进入 runtime 的模块集合
RUNTIME_MODULES="${MAIN_MODULE},javafx.base,javafx.graphics,javafx.controls,javafx.swing,org.eclipse.paho.client.mqttv3,jdk.localedata,jdk.crypto.ec,jdk.crypto.cryptoki"

echo "==> [3/5] jlink 生成最小运行时 → ${RUNTIME_DIR}"
rm -rf "${RUNTIME_DIR}"
jlink \
    --module-path "${JAVA_HOME}/jmods:${MODULE_PATH}" \
    --add-modules "${RUNTIME_MODULES}" \
    --no-header-files \
    --no-man-pages \
    --strip-debug \
    --compress=zip-9 \
    --ignore-signing-information \
    --output "${RUNTIME_DIR}"

echo "==> [4/5] jpackage 生成 .app → ${OUT_DIR}"
rm -rf "${OUT_DIR}"
mkdir -p "${OUT_DIR}"

# ---------------------------------------------------------------------------
# 自动准备 Dock 图标：
#   1) 优先使用 src/main/resources/icon.icns（如果用户已自备多分辨率图标）
#   2) 否则从 src/main/resources/icon.png 现转：
#      - 用 sips 生成 16 / 32 / 64 / 128 / 256 / 512 / 1024 + @2x 共 10 张
#      - 用 iconutil 打包成 icon.icns
#      建议源图 ≥ 1024×1024；尺寸过小会被强行放大、Dock 上糊
# ---------------------------------------------------------------------------
ICON_ARG=()
if [[ -f "src/main/resources/icon.icns" ]]; then
    ICON_ARG+=(--icon "src/main/resources/icon.icns")
    echo "    使用图标：src/main/resources/icon.icns"
elif [[ -f "src/main/resources/com/fujica/parkingtool/icon.icns" ]]; then
    ICON_ARG+=(--icon "src/main/resources/com/fujica/parkingtool/icon.icns")
    echo "    使用图标：src/main/resources/com/fujica/parkingtool/icon.icns"
elif [[ -f "src/main/resources/icon.png" ]]; then
    SRC_PNG="src/main/resources/icon.png"
    ICONSET="target/icon.iconset"
    OUT_ICNS="target/icon.icns"
    rm -rf "${ICONSET}"
    mkdir -p "${ICONSET}"
    # 注意：尺寸 = base × scale；命名规则参考 iconutil 文档
    declare -a SIZES=(16 32 32 64 128 256 256 512 512 1024)
    declare -a NAMES=(
        "icon_16x16.png"     "icon_16x16@2x.png"
        "icon_32x32.png"     "icon_32x32@2x.png"
        "icon_128x128.png"   "icon_128x128@2x.png"
        "icon_256x256.png"   "icon_256x256@2x.png"
        "icon_512x512.png"   "icon_512x512@2x.png"
    )
    for i in "${!SIZES[@]}"; do
        sips -z "${SIZES[$i]}" "${SIZES[$i]}" "${SRC_PNG}" --out "${ICONSET}/${NAMES[$i]}" >/dev/null
    done
    rm -f "${OUT_ICNS}"
    iconutil --convert icns --output "${OUT_ICNS}" "${ICONSET}"
    ICON_ARG+=(--icon "${OUT_ICNS}")
    echo "    已从 ${SRC_PNG} 自动生成 → ${OUT_ICNS}"
    SRC_W=$(sips -g pixelWidth "${SRC_PNG}" | awk '/pixelWidth/ {print $2}')
    if [[ -n "${SRC_W}" && "${SRC_W}" -lt 512 ]]; then
        echo "    ⚠️ 源图仅 ${SRC_W}px，Dock 会被放大显示，建议提供 ≥1024×1024 的 icon.png"
    fi
fi

jpackage \
    --type app-image \
    --name "${APP_NAME}" \
    --app-version "${APP_VERSION}" \
    --vendor "${APP_VENDOR}" \
    --module-path "${MODULE_PATH}" \
    --module "${MAIN_MODULE}/${MAIN_CLASS}" \
    --runtime-image "${RUNTIME_DIR}" \
    --dest "${OUT_DIR}" \
    --java-options "-Xms128m" \
    --java-options "-Xmx1024m" \
    --java-options "-Dprism.lcdtext=false" \
    --java-options "--enable-native-access=javafx.graphics" \
    ${ICON_ARG[@]+"${ICON_ARG[@]}"}

echo "==> [5/5] 压缩成 zip 便于分发"
ARCH=$(uname -m)
ZIP_NAME="${APP_NAME}-mac-${ARCH}.zip"
( cd "${OUT_DIR}" && rm -f "${ZIP_NAME}" && ditto -ck --rsrc --keepParent "${APP_NAME}.app" "${ZIP_NAME}" )

echo ""
echo "✅ 完成"
du -sh "${OUT_DIR}/${APP_NAME}.app" || true
du -sh "${OUT_DIR}/${ZIP_NAME}" || true
echo "   .app:  ${OUT_DIR}/${APP_NAME}.app"
echo "   .zip:  ${OUT_DIR}/${ZIP_NAME}"
echo "   双击 .app 运行即可，无需安装 JDK。"

# === 可选：生成 .dmg 安装镜像 ===
# jpackage \
#     --type dmg \
#     --name "${APP_NAME}" \
#     --app-version "${APP_VERSION}" \
#     --vendor "${APP_VENDOR}" \
#     --module-path "${MODULE_PATH}" \
#     --module "${MAIN_MODULE}/${MAIN_CLASS}" \
#     --runtime-image "${RUNTIME_DIR}" \
#     --dest "${OUT_DIR}" \
#     "${ICON_ARG[@]}"