#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""通过 Paramiko（SFTP + exec）部署到 ARM 板，无交互 SSH。日志写入 .deploy_logs/。"""
from __future__ import annotations

import io
import os
import posixpath
import sys
import time
from datetime import datetime
from pathlib import Path

try:
    import paramiko
except ImportError:
    print("请先安装: pip install paramiko", file=sys.stderr)
    sys.exit(1)

HOST = os.environ.get("LIVE_DEPLOY_HOST", "192.168.21.105")
USER = os.environ.get("LIVE_DEPLOY_USER", "live")
PASS = os.environ.get("LIVE_DEPLOY_PASS", "12345678")
REMOTE_BASE = os.environ.get("LIVE_DEPLOY_PATH", "/home/live/douyinyoutube").rstrip("/")

REPO_ROOT = Path(__file__).resolve().parent.parent

FILES = [
    "src/control_plane.py",
    "src/web_process_backend.py",
    "src/hub_routes.py",
    "src/live_config/__init__.py",
    "src/live_config/loader.py",
    "web.py",
    "main.py",
    "scripts/hardware_probe.py",
    "douyin_youtube_ffplay.py",
    "scripts/linux/install_hub.sh",
    "scripts/linux/reinstall_live_edge.sh",
    "scripts/linux/service_ctl.sh",
    "scripts/linux/lib/common.sh",
    "services/srs/docker-compose.yml",
    "services/neko/docker-compose.yml",
    "services/neko/chromium.conf",
    "services/neko/policies/policies.json",
    "services/neko/.gitignore",
    "live-platform/tools/render_caddyfile.py",
    "live-platform/tools/render_stack_env.py",
    "web-console/package.json",
    "web-console/package-lock.json",
    "web-console/app/globals.css",
    "web-console/app/layout.tsx",
    "web-console/app/page.tsx",
    "web-console/middleware.ts",
    "web-console/components/OverviewCharts.tsx",
    "web-console/components/live-product/LiveControlApp.tsx",
    "web-console/components/live-product/LiveAndroidWorkstation.tsx",
    "web-console/components/live-product/LiveYoutubeUnmannedView.tsx",
    "web-console/components/live-product/LiveTiktokHdmiView.tsx",
    "web-console/lib/panelUrls.ts",
    "web-console/lib/youtubeProChannels.ts",
    "web-console/lib/youtubeConfigUtils.ts",
    "web-console/components/console/LiveConsoleWorkspace.tsx",
]

LOG_DIR = REPO_ROOT / ".deploy_logs"
TAIL_LINES = 90


def _safe_print(text: str) -> None:
    try:
        print(text)
    except UnicodeEncodeError:
        enc = getattr(sys.stdout, "encoding", None) or "utf-8"
        try:
            sys.stdout.buffer.write(text.encode(enc, errors="replace") + b"\n")
        except Exception:
            sys.stdout.buffer.write(text.encode("ascii", errors="backslashreplace") + b"\n")


def _decode(data: bytes) -> str:
    if not data:
        return ""
    try:
        return data.decode("utf-8", errors="replace")
    except Exception:
        return data.decode("ascii", errors="backslashreplace")


def _tail(text: str, n: int = TAIL_LINES) -> str:
    lines = text.splitlines()
    if len(lines) <= n:
        return text
    return "\n".join(lines[-n:])


def _log_append(path: Path, text: str) -> None:
    with path.open("a", encoding="utf-8", errors="replace") as fh:
        fh.write(text)
        if not text.endswith("\n"):
            fh.write("\n")


def mkdir_p(sftp: paramiko.SFTPClient, remote_dir: str) -> None:
    remote_dir = remote_dir.replace("\\", "/").rstrip("/")
    if not remote_dir or remote_dir == "/":
        return
    parts = [p for p in remote_dir.split("/") if p]
    cur = ""
    for p in parts:
        cur = f"{cur}/{p}" if cur else f"/{p}"
        try:
            sftp.stat(cur)
        except OSError:
            try:
                sftp.mkdir(cur)
            except OSError:
                pass


def _shell_bytes_lf(data: bytes) -> bytes:
    """Windows 工作区常见 CRLF；上传到 Linux 后 bash 会把 pipefail\\r 当成非法选项。"""
    return data.replace(b"\r\n", b"\n").replace(b"\r", b"\n")


def sftp_put(sftp: paramiko.SFTPClient, local: Path, remote: str) -> None:
    remote = remote.replace("\\", "/")
    parent = posixpath.dirname(remote)
    mkdir_p(sftp, parent)
    if local.suffix.lower() == ".sh":
        sftp.putfo(io.BytesIO(_shell_bytes_lf(local.read_bytes())), remote)
    else:
        sftp.put(str(local), remote)


def connect() -> tuple[paramiko.SSHClient, paramiko.SFTPClient]:
    client = paramiko.SSHClient()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    client.connect(
        HOST,
        username=USER,
        password=PASS,
        timeout=30,
        banner_timeout=40,
        auth_timeout=30,
    )
    return client, client.open_sftp()


def run_raw(ssh: paramiko.SSHClient, cmd: str, timeout: int) -> tuple[int, str, str]:
    # 非交互；统一 UTF-8，减少远端 locale 乱码
    wrapped = (
        "export LC_ALL=C.UTF-8 LANG=C.UTF-8; "
        "cd ~ 2>/dev/null || true; "
        + cmd
    )
    _stdin, stdout, stderr = ssh.exec_command(wrapped, timeout=timeout, get_pty=False)
    out_b = stdout.read()
    err_b = stderr.read()
    code = stdout.channel.recv_exit_status()
    return code, _decode(out_b), _decode(err_b)


def run_logged(
    ssh: paramiko.SSHClient,
    log_path: Path,
    title: str,
    cmd: str,
    timeout: int = 120,
) -> tuple[int, str]:
    block = f"\n========== {title} ==========\n$ {cmd}\n"
    _log_append(log_path, block)
    code, out, err = run_raw(ssh, cmd, timeout=timeout)
    full = f"exit={code}\n--- stdout ---\n{out}\n--- stderr ---\n{err}\n"
    _log_append(log_path, full)
    _safe_print(f"\n--- {title} (最后 {TAIL_LINES} 行) ---\n{_tail(full)}")
    return code, full


def main() -> int:
    LOG_DIR.mkdir(parents=True, exist_ok=True)
    stamp = datetime.now().strftime("%Y%m%d_%H%M%S")
    log_path = LOG_DIR / f"deploy_{stamp}.log"
    log_path.write_text(f"deploy {stamp} -> {USER}@{HOST}:{REMOTE_BASE}\n", encoding="utf-8")
    if hasattr(sys.stdout, "reconfigure"):
        try:
            sys.stdout.reconfigure(encoding="utf-8", errors="replace")
        except Exception:
            pass
    _safe_print(f"完整日志: {log_path}")

    client, sftp = None, None
    try:
        client, sftp = connect()
    except Exception as e:
        _safe_print(f"连接失败: {e}")
        _log_append(log_path, f"CONNECT FAIL: {e!r}\n")
        return 1

    try:
        run_logged(client, log_path, "pwd", f"cd {REMOTE_BASE} && pwd", timeout=30)
        run_logged(client, log_path, "id", "id", timeout=15)
        run_logged(client, log_path, "hostname", "hostname", timeout=15)
        run_logged(
            client,
            log_path,
            "repo_exists",
            f"test -d {REMOTE_BASE} && echo ok || echo MISSING",
            timeout=15,
        )

        for rel in FILES:
            lp = REPO_ROOT / rel
            if not lp.is_file():
                _safe_print(f"本地缺少文件: {lp}")
                return 2
            rp = f"{REMOTE_BASE}/{rel.replace(chr(92), '/')}"
            _log_append(log_path, f"SFTP PUT {lp} -> {rp}\n")
            sftp_put(sftp, lp, rp)
            _safe_print(f"已上传: {rel}")

        py_compile = (
            f"cd {REMOTE_BASE} && python3 -m py_compile web.py "
            "src/control_plane.py src/web_process_backend.py src/hub_routes.py "
            "src/live_config/__init__.py src/live_config/loader.py "
            "scripts/hardware_probe.py douyin_youtube_ffplay.py main.py"
        )
        code_py, _ = run_logged(client, log_path, "python_py_compile", py_compile, timeout=90)
        if code_py != 0:
            _safe_print("远程 py_compile 失败，见日志")
            return 3

        _log_append(
            log_path,
            "\n[提示] web_console_build 在远端执行 npm + next build，ARM 上常需 5～20 分钟；"
            "未完成前日志不会出现 exit=，属正常现象。\n",
        )
        _safe_print("远端正在构建 web-console（请耐心等待，ARM 可能较久）…")
        build_cmd = (
            f"cd {REMOTE_BASE}/web-console && "
            "(npm ci 2>/dev/null || npm install) && "
            "(command -v pnpm >/dev/null 2>&1 && pnpm run build || npm run build)"
        )
        code_b, _ = run_logged(client, log_path, "web_console_build", build_cmd, timeout=2400)
        if code_b != 0:
            _safe_print("[警告] web-console build 非 0（可能未装 Node/pnpm），完整输出见日志")

        sudo_snap = (
            f"echo '{PASS}' | sudo -S bash -c "
            f"'systemctl list-units --type=service --state=running 2>/dev/null | head -50 || true'"
        )
        run_logged(client, log_path, "sudo_systemctl_running_head", sudo_snap, timeout=45)

        restart_cmd = (
            f"echo '{PASS}' | sudo -S bash -c '"
            "systemctl try-restart live-console.service 2>/dev/null || true; "
            "systemctl try-restart live-edge.service 2>/dev/null || true; "
            "systemctl try-restart douyinyoutube.service 2>/dev/null || true; "
            "systemctl try-restart douyin-live.service 2>/dev/null || true; "
            "systemctl try-restart live-web.service 2>/dev/null || true; "
            "echo try_restart_done'"
        )
        run_logged(client, log_path, "sudo_try_restart_units", restart_cmd, timeout=60)
        run_logged(
            client,
            log_path,
            "sudo_restart_live_console",
            f"echo '{PASS}' | sudo -S systemctl restart live-console.service",
            timeout=120,
        )
        _safe_print("等待服务监听…")
        time.sleep(6)
        run_logged(
            client,
            log_path,
            "curl_health_after_restart",
            "curl -sS -m 15 http://127.0.0.1:8001/health 2>&1 || "
            "curl -sS -m 15 http://127.0.0.1:8101/health 2>&1 || "
            "echo 'curl_health_failed'",
            timeout=25,
        )
        run_logged(
            client,
            log_path,
            "curl_port80_root",
            "curl -sS -m 12 -o /dev/null -w 'http_code=%{http_code}\\n' http://127.0.0.1/ 2>&1 || echo curl_80_fail",
            timeout=20,
        )
        run_logged(
            client,
            log_path,
            "chmod_reinstall_edge",
            f"chmod +x {REMOTE_BASE}/scripts/linux/reinstall_live_edge.sh 2>/dev/null || true",
            timeout=15,
        )
        run_logged(
            client,
            log_path,
            "reinstall_live_edge",
            f"echo '{PASS}' | sudo -S bash {REMOTE_BASE}/scripts/linux/reinstall_live_edge.sh",
            timeout=180,
        )
        # Caddy 刚 enable --now 时 bind :80 可能晚于立即 curl（曾出现 http_code=000）
        time.sleep(8)
        run_logged(
            client,
            log_path,
            "curl_port80_after_edge",
            "for i in 1 2 3 4 5; do "
            "code=$(curl -sS -m 8 -o /dev/null -w '%{http_code}' http://127.0.0.1/ 2>/dev/null || echo 000); "
            "echo \"try$i http_code=$code\"; "
            "[ \"$code\" = 200 ] && exit 0; "
            "sleep 3; "
            "done; exit 1",
            timeout=60,
        )

        run_logged(
            client,
            log_path,
            "pm2_or_process",
            f"command -v pm2 >/dev/null 2>&1 && pm2 list || "
            f"(pgrep -af 'launch.py|uvicorn|web.py' | head -15 || true)",
            timeout=30,
        )

        run_logged(
            client,
            log_path,
            "curl_server_info",
            "curl -sS -m 10 'http://127.0.0.1:8001/server_info' 2>&1 | head -c 4000 || true",
            timeout=20,
        )

        return 0
    finally:
        if sftp:
            sftp.close()
        if client:
            client.close()


if __name__ == "__main__":
    raise SystemExit(main())