# build.py - 构建脚本（重构后，逻辑保持不变）

import platform
import os
import shutil
import subprocess
import sys
import asyncio
from pathlib import Path

from module_bank import PythonToSQLite
from module_bank.encryption import Encryption
from sqlite_vfs.core import SQLiteVFS
from sqlite_vfs.folder_packer import FolderPacker

is_windows = platform.system() == "Windows"


# ---------------------------------------------------------------------------
# 前端构建
# ---------------------------------------------------------------------------
def build_vue_web():
    """构建 Vue 前端并打包为 static.svfs"""
    dist_dir = "./src/chongming-web/dist"
    output_db = "./build/static.svfs"
    fs_name = "frontend"

    # 1. 执行 npm run build
    cmd = ["npm", "run", "build"]
    result = subprocess.run(
        cmd,
        cwd="./src/chongming-web",
        capture_output=True,
        text=True,
        shell=is_windows,
        encoding="utf-8",
        errors="replace",
    )
    if result.returncode != 0:
        print("打包 Vue Web 失败")
        print("标准输出:", result.stdout)
        print("错误输出:", result.stderr)
        return
    else:
        print("Vue Web 打包成功")
        if result.stdout:
            print(result.stdout)

    # 2. 检查 dist 目录
    if not os.path.exists(dist_dir):
        print(f"错误: dist 目录不存在: {dist_dir}")
        return

    # 3. 打包到 svfs
    vfs = SQLiteVFS(output_db, compress=False)
    packer = FolderPacker(
        sqlite_vfs=vfs,
        exclude_patterns=[],
        fs_name=fs_name,
    )
    try:
        packer.pack_folder(dist_dir)
        print(f"✅ 打包完成，文件保存为 {output_db}")
    finally:
        vfs.close()


# ---------------------------------------------------------------------------
# PyArmor 混淆
# ---------------------------------------------------------------------------
def run_pyarmor_obfuscate():
    """对关键文件执行 PyArmor 混淆"""
    obfuscate_files = [
        ("main.py", "./"),
        ("server.py", "./"),
        ("utils/launch.py", "./utils"),
        ("utils/config.py", "./utils"),
    ]
    for file, output in obfuscate_files:
        cmd = [
            "pyarmor",
            "gen",
            f"--output={output}",
            file,
        ]
        result = subprocess.run(cmd, cwd="./build", capture_output=True, text=True)
        if result.returncode != 0:
            print(f"打包文件: {file} 失败")
            print(result.stderr)
            return
        else:
            print(result.stdout)
        print(f"打包文件: {file}")


# ---------------------------------------------------------------------------
# PyInstaller 打包
# ---------------------------------------------------------------------------
def run_pyinstaller():
    """使用 PyInstaller 打包成可执行文件"""
    try:
        if is_windows:
            cmd = [
                sys.executable,
                "-m",
                "PyInstaller",
                "--onefile",
                "--name",
                "chongming",
                "--distpath",
                ".",
                "--workpath",
                "./build_temp",
                "--specpath",
                "./specs",
                "--clean",
                "--hidden-import",
                "utils",
                "--hidden-import",
                "utils.launch",
                "--hidden-import",
                "utils.config",
                "--hidden-import",
                "server",
                "--hidden-import",
                "module_bank",
                "--hidden-import",
                "fastapi",
                "--hidden-import",
                "fastapi.staticfiles",
                "--hidden-import",
                "fastapi.middleware.cors",
                "--hidden-import",
                "uvicorn",
                "--hidden-import",
                "sqlmodel",
                "--hidden-import",
                "aiosqlite",
                "--hidden-import",
                "aiofiles",
                "--hidden-import",
                "apscheduler",
                "--hidden-import",
                "diskcache",
                "--hidden-import",
                "passlib",
                "--hidden-import",
                "passlib.context",
                "--hidden-import",
                "passlib.handlers.bcrypt",
                "--hidden-import",
                "sqlite_vfs",
                "--hidden-import",
                "python_multipart",
                "--hidden-import",
                "sqlite_vfs.core",
                "--hidden-import",
                "jwt",
                "--icon",
                "../../public/chongming.ico",
                "main.py",
            ]
        else:
            cmd = [
                sys.executable,
                "-m",
                "PyInstaller",
                "--onefile",
                "--name",
                "chongming",
                "--distpath",
                ".",
                "--workpath",
                "./build_temp",
                "--specpath",
                "./specs",
                "--clean",
                "--hidden-import",
                "utils",
                "--hidden-import",
                "utils.launch",
                "--hidden-import",
                "utils.config",
                "--hidden-import",
                "server",
                "--hidden-import",
                "module_bank",
                "--hidden-import",
                "fastapi",
                "--hidden-import",
                "fastapi.staticfiles",
                "--hidden-import",
                "fastapi.middleware.cors",
                "--hidden-import",
                "uvicorn",
                "--hidden-import",
                "sqlmodel",
                "--hidden-import",
                "aiosqlite",
                "--hidden-import",
                "aiofiles",
                "--hidden-import",
                "apscheduler",
                "--hidden-import",
                "diskcache",
                "--hidden-import",
                "passlib",
                "--hidden-import",
                "passlib.context",
                "--hidden-import",
                "passlib.handlers.bcrypt",
                "--hidden-import",
                "sqlite_vfs",
                "--hidden-import",
                "python_multipart",
                "--hidden-import",
                "sqlite_vfs.core",
                "--hidden-import",
                "jwt",
                # gunicorn 相关
                "--hidden-import",
                "gunicorn.glogging",
                "--hidden-import",
                "gunicorn.app",
                "--hidden-import",
                "gunicorn.app.wsgiapp",
                "--icon",
                "../../public/chongming.ico",
                "main.py",
            ]

        print(f"正在运行 PyInstaller: {' '.join(cmd)}")
        result = subprocess.run(cmd, cwd="./build", capture_output=True, text=True)

        if result.returncode == 0:
            print("PyInstaller 打包成功！")
            print(result.stdout)
        else:
            print("PyInstaller 打包失败！")
            print("错误信息:", result.stderr)

    except FileNotFoundError:
        print("错误：未找到 PyInstaller，请先安装 PyInstaller：pip install pyinstaller")
    except Exception as e:
        print(f"PyInstaller 执行出错: {e}")


# ---------------------------------------------------------------------------
# 数据库初始化
# ---------------------------------------------------------------------------
async def init_database():
    """构建环境下的数据库初始化（创建表、管理员、权限）"""
    from sqlalchemy.ext.asyncio import (
        create_async_engine,
        AsyncSession,
        async_sessionmaker,
    )
    from sqlmodel import SQLModel, text
    from sqlalchemy.exc import OperationalError

    from ..app.core.config import get_config
    from ..app.task.dev_init_db import init_permission, dev_init_admin

    database = get_config()["database"]
    database_type = database["type"]
    database_config = database.get(database_type, None)
    if database_config is None:
        raise ValueError("配置不存在")

    engine = create_async_engine(
        "sqlite+aiosqlite:///./build/database.db", **database_config
    )
    async_session_maker = async_sessionmaker(
        engine, class_=AsyncSession, expire_on_commit=False
    )

    async with engine.begin() as conn:
        if database_type == "sqlite":
            await conn.execute(text("PRAGMA journal_mode=WAL"))
            await conn.execute(text("PRAGMA synchronous=NORMAL"))
        try:
            await conn.run_sync(
                lambda conn: SQLModel.metadata.create_all(bind=conn, checkfirst=True)
            )
        except OperationalError as e:
            if "already exists" in str(e):
                raise

    async with async_session_maker() as session:
        await init_permission(session)
        await dev_init_admin(session)


# ---------------------------------------------------------------------------
# 构建主流程
# ---------------------------------------------------------------------------
async def main():
    # ========================================================
    # 1. 生成密钥并创建 resources 目录
    # ========================================================
    key = Encryption.generate_key()
    resources_path = Path("resources")
    resources_path.mkdir(exist_ok=True)

    # 2. 打包 Python 模块到 .mbank
    app_packer = PythonToSQLite("./resources/app.mbank", key)
    app_packer.pack_directory("src/chongming/app", "app")
    app_packer.verify_package_structure()
    app_packer.delete_source_code(None)

    plugin_packer = PythonToSQLite("./resources/plugins.mbank", key)
    plugin_packer.pack_directory("src/plugins", "plugins")
    plugin_packer.verify_package_structure()
    plugin_packer.delete_source_code(None)

    # 3. 准备 build 目录
    if Path("build").exists() and Path("build").is_dir():
        shutil.rmtree("build")
    os.makedirs("build", exist_ok=True)

    # 复制 resources 到 build
    shutil.copytree(resources_path, Path("build") / "resources", dirs_exist_ok=True)
    print(f"已复制 resources 文件夹到 build/resources")

    # 复制 public 中的文件到 build
    shutil.copy("public/main.py", "build")
    shutil.copy("public/server.py", "build")
    shutil.copy("public/config.toml", "build")
    # 复制 utils（先复制 public/utils，后续会处理 launch.py 中的 key）
    utils_source = Path("public/utils")
    if utils_source.exists():
        shutil.copytree(utils_source, Path("build") / "utils", dirs_exist_ok=True)
        print(f"已复制 utils 文件夹到 build/utils")

    print("模块打包完成")

    # 4. 替换密钥
    launch_file = Path("./build/utils/launch.py")
    launch_content = launch_file.read_text(encoding="utf-8")
    launch_content = launch_content.replace("key = None", f"key = '{key}'")
    launch_file.write_text(launch_content, encoding="utf-8")

    jwt_key = Encryption.generate_key()
    config_file = Path("./build/config.toml")
    config_content = config_file.read_text(encoding="utf-8")
    config_content = config_content.replace(
        "your-secret-key-change-in-production", jwt_key
    )
    config_file.write_text(config_content, encoding="utf-8")

    # 5. 混淆
    run_pyarmor_obfuscate()

    # 6. PyInstaller 打包
    run_pyinstaller()

    # 7. 清理临时文件
    for temp_dir in [
        "build/build_temp",
        "build/specs",
        "build/utils",
        "build/pyarmor_runtime_000000",
    ]:
        shutil.rmtree(temp_dir, ignore_errors=True)
    for temp_file in ["build/main.py", "build/server.py"]:
        try:
            os.remove(temp_file)
        except FileNotFoundError:
            pass

    print("构建完成")

    # 8. 初始化数据库（构建输出目录下的 database.db）
    await init_database()

    # 9. 构建前端并生成 static.svfs
    build_vue_web()


def build():
    """构建入口"""
    asyncio.run(main())