"""Fast deploy: upload only book CSS + rebuild web (no full file dump)."""
from __future__ import annotations

import sys
import time
from pathlib import Path

import paramiko

sys.stdout.reconfigure(encoding="utf-8", errors="replace")

HOST = "107.173.30.245"
USER = "root"
PASS = "Xiao4669805"
REMOTE = "/opt/nomadweb"
DOMAIN = "nomadweb.nomadro.com"

FILES = [
    "frontend/src/app/globals.css",
    "frontend/src/components/SiteShell.tsx",
    "frontend/src/app/book/ebook-globals.css",
    "frontend/src/components/ebook/ScrollReaderShell.tsx",
]

BUILD = f"""
set -euo pipefail
exec 9>/var/lock/nomadro-deploy.lock
if ! flock -n 9; then
  echo LOCK_BUSY
  exit 75
fi
REMOTE={REMOTE}
DOMAIN={DOMAIN}
export NEXT_TELEMETRY_DISABLED=1
export NEXT_PUBLIC_API_URL=https://${{DOMAIN}}/api/v1
export NEXT_PUBLIC_SITE_URL=https://${{DOMAIN}}
export NODE_ENV=production

echo BUILD_START
cd "$REMOTE/frontend"
# keep node_modules; only rebuild
rm -rf .next
NPM_CONFIG_PRODUCTION=false npm run build
mkdir -p .next/standalone/.next
rm -rf .next/standalone/public .next/standalone/.next/static
cp -a public .next/standalone/public
cp -a .next/static .next/standalone/.next/static
rm -rf .next/standalone/content
mkdir -p .next/standalone/content
cp -a content .next/standalone/content
systemctl restart nomadro-web
ok=0
for i in $(seq 1 40); do
  web=$(curl -s -o /dev/null -w '%{{http_code}}' http://127.0.0.1:3055/ || true)
  echo "try=$i web=$web"
  if [ "$web" = "200" ]; then ok=1; break; fi
  sleep 1
done
echo FAST_CSS_SYNC=1
[ "$ok" = 1 ]
"""


def ensure_dir(sftp: paramiko.SFTPClient, path: str) -> None:
    parts = path.strip("/").split("/")
    cur = ""
    for p in parts:
        cur += "/" + p
        try:
            sftp.stat(cur)
        except FileNotFoundError:
            try:
                sftp.mkdir(cur)
            except OSError:
                pass


def main() -> int:
    root = Path(__file__).resolve().parents[1]
    t0 = time.time()
    client = paramiko.SSHClient()
    client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    print("Connecting...", flush=True)
    client.connect(HOST, username=USER, password=PASS, timeout=30)
    sftp = client.open_sftp()
    for rel in FILES:
        local = root / rel
        remote = f"{REMOTE}/{rel}"
        print(f"UPLOAD {rel}", flush=True)
        ensure_dir(sftp, str(Path(remote).parent).replace("\\", "/"))
        sftp.put(str(local), remote)
    sftp.close()
    print("Uploaded. Building...", flush=True)

    _, stdout, stderr = client.exec_command(
        f"cat > /tmp/nomadro-fast.sh <<'EOF'\n{BUILD}\nEOF\nbash /tmp/nomadro-fast.sh",
        timeout=900,
    )
    while True:
        line = stdout.readline()
        if not line:
            break
        print(line.rstrip(), flush=True)
    err = stderr.read().decode("utf-8", "replace")
    if err.strip():
        print("LOG:", err[-800:], flush=True)
    code = stdout.channel.recv_exit_status()
    client.close()
    print(f"exit: {code}", flush=True)
    print(f"Done in {time.time() - t0:.0f}s", flush=True)
    return code


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