#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
soul-api Go 项目一键部署到宝塔
- 本地交叉编译 Linux 二进制
- 上传到 /www/wwwroot/自营/soul-api
- 重启服务（nohup 或跳过）
"""

from __future__ import print_function

import os
import sys
import tempfile
import argparse
import subprocess
import shutil
import tarfile

try:
    import paramiko
except ImportError:
    print("错误: 请先安装 paramiko")
    print("  pip install paramiko")
    sys.exit(1)

# ==================== 配置 ====================

DEPLOY_PROJECT_PATH = "/www/wwwroot/自营/soul-api"
DEFAULT_SSH_PORT = int(os.environ.get("DEPLOY_SSH_PORT", "22022"))


def get_cfg():
    return {
        "host": os.environ.get("DEPLOY_HOST", "43.139.27.93"),
        "user": os.environ.get("DEPLOY_USER", "root"),
        "password": os.environ.get("DEPLOY_PASSWORD", "Zhiqun1984"),
        "ssh_key": os.environ.get("DEPLOY_SSH_KEY", ""),
        "project_path": os.environ.get("DEPLOY_PROJECT_PATH", DEPLOY_PROJECT_PATH),
    }


# ==================== 本地构建 ====================


def run_build(root):
    """交叉编译 Go 二进制（Linux amd64）"""
    print("[1/4] 本地交叉编译 Go 二进制 ...")
    env = os.environ.copy()
    env["GOOS"] = "linux"
    env["GOARCH"] = "amd64"
    env["CGO_ENABLED"] = "0"
    try:
        r = subprocess.run(
            ["go", "build", "-o", "soul-api", "./cmd/server"],
            cwd=root,
            env=env,
            shell=(sys.platform == "win32"),
            timeout=120,
            capture_output=True,
            text=True,
            encoding="utf-8",
            errors="replace",
        )
        if r.returncode != 0:
            print("  [失败] go build 失败，退出码:", r.returncode)
            if r.stderr:
                for line in (r.stderr or "").strip().split("\n")[-10:]:
                    print("    " + line)
            return None
        out_path = os.path.join(root, "soul-api")
        if not os.path.isfile(out_path):
            print("  [失败] 未找到编译产物 soul-api")
            return None
        print("  [成功] 编译完成: %s (%.2f MB)" % (out_path, os.path.getsize(out_path) / 1024 / 1024))
        return out_path
    except subprocess.TimeoutExpired:
        print("  [失败] 编译超时")
        return None
    except FileNotFoundError:
        print("  [失败] 未找到 go 命令，请安装 Go")
        return None
    except Exception as e:
        print("  [失败] 编译异常:", str(e))
        return None


# ==================== 打包 ====================


def pack_deploy(root, binary_path, include_env=True):
    """打包二进制和 .env 为 tar.gz"""
    print("[2/4] 打包部署文件 ...")
    staging = tempfile.mkdtemp(prefix="soul_api_deploy_")
    try:
        shutil.copy2(binary_path, os.path.join(staging, "soul-api"))
        env_src = os.path.join(root, ".env")
        if include_env and os.path.isfile(env_src):
            shutil.copy2(env_src, os.path.join(staging, ".env"))
            print("  [已包含] .env")
        else:
            env_example = os.path.join(root, ".env.example")
            if os.path.isfile(env_example):
                shutil.copy2(env_example, os.path.join(staging, ".env"))
                print("  [已包含] .env.example -> .env (请服务器上检查配置)")
        tarball = os.path.join(tempfile.gettempdir(), "soul_api_deploy.tar.gz")
        with tarfile.open(tarball, "w:gz") as tf:
            for name in os.listdir(staging):
                tf.add(os.path.join(staging, name), arcname=name)
        print("  [成功] 打包完成: %s (%.2f MB)" % (tarball, os.path.getsize(tarball) / 1024 / 1024))
        return tarball
    except Exception as e:
        print("  [失败] 打包异常:", str(e))
        return None
    finally:
        shutil.rmtree(staging, ignore_errors=True)


# ==================== SSH 上传 ====================


def upload_and_extract(cfg, tarball_path, no_restart=False):
    """上传 tar.gz 到服务器并解压、重启"""
    print("[3/4] SSH 上传并解压 ...")
    if not cfg.get("password") and not cfg.get("ssh_key"):
        print("  [失败] 请设置 DEPLOY_PASSWORD 或 DEPLOY_SSH_KEY")
        return False
    client = paramiko.SSHClient()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    try:
        if cfg.get("ssh_key") and os.path.isfile(cfg["ssh_key"]):
            client.connect(
                cfg["host"], port=DEFAULT_SSH_PORT,
                username=cfg["user"], key_filename=cfg["ssh_key"],
                timeout=15,
            )
        else:
            client.connect(
                cfg["host"], port=DEFAULT_SSH_PORT,
                username=cfg["user"], password=cfg["password"],
                timeout=15,
            )
        sftp = client.open_sftp()
        remote_tar = "/tmp/soul_api_deploy.tar.gz"
        project_path = cfg["project_path"]
        sftp.put(tarball_path, remote_tar)
        sftp.close()

        cmd = (
            "mkdir -p %s && cd %s && tar -xzf %s && "
            "chmod +x soul-api && rm -f %s && echo OK"
        ) % (project_path, project_path, remote_tar, remote_tar)
        stdin, stdout, stderr = client.exec_command(cmd, timeout=60)
        out = stdout.read().decode("utf-8", errors="replace").strip()
        exit_status = stdout.channel.recv_exit_status()
        if exit_status != 0 or "OK" not in out:
            print("  [失败] 解压失败，退出码:", exit_status)
            return False
        print("  [成功] 已解压到: %s" % project_path)

        if not no_restart:
            print("[4/4] 重启 soul-api 服务 ...")
            restart_cmd = (
                "cd %s && pkill -f 'soul-api' 2>/dev/null; sleep 2; "
                "nohup ./soul-api >> soul-api.log 2>&1 & sleep 1; "
                "pgrep -f soul-api >/dev/null && echo RESTART_OK || echo RESTART_FAIL"
            ) % project_path
            stdin, stdout, stderr = client.exec_command(restart_cmd, timeout=15)
            out = stdout.read().decode("utf-8", errors="replace").strip()
            if "RESTART_OK" in out:
                print("  [成功] soul-api 已重启")
            else:
                print("  [警告] 重启状态未知，请手动检查: cd %s && ./soul-api" % project_path)
        else:
            print("[4/4] 跳过重启 (--no-restart)")

        return True
    except Exception as e:
        print("  [失败] SSH 错误:", str(e))
        return False
    finally:
        client.close()


# ==================== 主函数 ====================


def main():
    parser = argparse.ArgumentParser(
        description="soul-api Go 项目一键部署到宝塔",
        formatter_class=argparse.RawDescriptionHelpFormatter,
    )
    parser.add_argument("--no-build", action="store_true", help="跳过本地编译（使用已有 soul-api 二进制）")
    parser.add_argument("--no-env", action="store_true", help="不打包 .env（保留服务器现有 .env）")
    parser.add_argument("--no-restart", action="store_true", help="上传后不重启服务")
    args = parser.parse_args()

    script_dir = os.path.dirname(os.path.abspath(__file__))
    root = script_dir

    cfg = get_cfg()
    print("=" * 60)
    print("  soul-api 一键部署到宝塔")
    print("=" * 60)
    print("  服务器: %s@%s:%s" % (cfg["user"], cfg["host"], DEFAULT_SSH_PORT))
    print("  目标目录: %s" % cfg["project_path"])
    print("=" * 60)

    binary_path = os.path.join(root, "soul-api")
    if not args.no_build:
        p = run_build(root)
        if not p:
            return 1
    else:
        if not os.path.isfile(binary_path):
            print("[错误] 未找到 soul-api 二进制，请先编译或去掉 --no-build")
            return 1
        print("[1/4] 跳过编译，使用现有 soul-api")

    tarball = pack_deploy(root, binary_path, include_env=not args.no_env)
    if not tarball:
        return 1

    if not upload_and_extract(cfg, tarball, no_restart=args.no_restart):
        return 1

    try:
        os.remove(tarball)
    except Exception:
        pass

    print("")
    print("  部署完成！目录: %s" % cfg["project_path"])
    return 0


if __name__ == "__main__":
    sys.exit(main())