"""MC 服务器信息查询 —— Web API 子应用（挂载到 /api/mc_server_status）。

服务器数据（`hexi/data/mc_status_data.json`：`{群号: {名字: [地址, 类型]}}`）
的唯一 Web 读写入口：列出 / 新增 / 编辑（含改名）/ 删除 / 测试连接。
写操作全部落在 services/servers.py（校验只有那一份），和群里的
`添加服务器`/`删除服务器` 命令改的是同一份内存态 + 同一个文件。

鉴权走 hexi.web_hub.web_auth（OAuth2 + SQLite），与统一管理台 /hub 共用登录态。
**每条路由都要自带 `dependencies=[auth]`** —— mount 层没有兜底，漏一条就是匿名可访问。
前端页面：hexi/web/src/plugins/mc_server_status/index.tsx。
"""

from __future__ import annotations

from fastapi import FastAPI
from fastapi.responses import JSONResponse

from hexi.web_hub.web_auth import require_admin

from .services import mc as mc_service
from .services import servers as store

API = require_admin


def _ok(data=None, msg: str = "ok") -> JSONResponse:
    return JSONResponse({"status": 0, "msg": msg, "data": data})


def _fail(msg: str, status: int = 400) -> JSONResponse:
    return JSONResponse({"status": status, "msg": msg})


async def _group_names() -> dict[str, str]:
    """群号 → 群名；拿不到 bot（未连接）时返回空表，前端只显示群号。"""
    try:
        from nonebot import get_adapter
        from nonebot.adapters.onebot.v11 import Adapter

        bots = get_adapter(Adapter).bots
        bot = next(iter(bots.values()), None)
        if bot is None:
            return {}
        return {
            str(g["group_id"]): g.get("group_name") or ""
            for g in await bot.get_group_list()
        }
    except Exception:  # noqa: BLE001 — 未连接/适配器未加载都按拿不到处理
        return {}


def _payload() -> dict:
    """整表视图：群列表（含群名与在线标记）+ 类型选项。"""
    groups = store.snapshot()
    return {
        "groups": [
            {
                "group_id": str(gid),
                "servers": [
                    {"name": name, "address": value[0], "type": value[1]}
                    for name, value in sorted(servers.items())
                ],
            }
            for gid, servers in sorted(groups.items())
        ],
        "types": store.SERVER_TYPES,
        "address_hint": store.ADDRESS_HINT,
    }


async def _payload_with_names() -> dict:
    """跑一次 payload 再把群名补上（两条路由共用的收尾）。"""
    data = _payload()
    names = await _group_names()
    for row in data["groups"]:
        row["group_name"] = names.get(row["group_id"], "")
        row["online"] = row["group_id"] in names
    data["bot_online"] = bool(names)
    return data


def build_admin_app() -> FastAPI | None:
    """构建 MC 服务器数据管理 API 子应用（挂载到 /api/mc_server_status）。"""
    app = FastAPI(title="MC Server Status API")
    auth = require_admin

    @app.get("/overview", response_class=JSONResponse, dependencies=[auth])
    async def overview():
        """一次拿全：所有群 + 服务器列表 + 类型选项。"""
        return _ok(await _payload_with_names())

    @app.post("/server", response_class=JSONResponse, dependencies=[auth])
    async def save_server(data: dict):
        """新增/更新一台服务器；带 old_name 且与 name 不同即为改名。"""
        try:
            group_id = store.parse_group_id(data.get("group_id"))
            name = store.normalize_name(data.get("name"))
            created = store.set_server(
                group_id,
                name,
                str(data.get("address") or ""),
                str(data.get("type") or ""),
                old_name=str(data.get("old_name") or "").strip() or None,
            )
        except store.ServerError as e:
            return _fail(str(e))
        return _ok(
            await _payload_with_names(),
            f"服务器「{name}」已{'添加' if created else '保存'}",
        )

    @app.delete("/server/{group_id}/{name}", response_class=JSONResponse, dependencies=[auth])
    async def remove_server(group_id: str, name: str):
        """删掉某群里的一台服务器（删空了连带删群）。"""
        try:
            store.delete_server(group_id, name)
        except store.ServerError as e:
            return _fail(str(e))
        return _ok(await _payload_with_names(), f"服务器「{name}」已删除")

    @app.delete("/group/{group_id}", response_class=JSONResponse, dependencies=[auth])
    async def remove_group(group_id: str):
        """删掉整个群的服务器配置。"""
        try:
            store.delete_group(group_id)
        except store.ServerError as e:
            return _fail(str(e))
        return _ok(await _payload_with_names(), f"群 {group_id} 的服务器配置已删除")

    @app.post("/test", response_class=JSONResponse, dependencies=[auth])
    async def test_server(data: dict):
        """测试连接：给了群号+名字就测存量那台，否则测临时填的地址（不落库）。

        对不上的地址走 mcstatus 自己的 2 秒超时，返回的是查询失败文案而不是报错。
        """
        group_id = str(data.get("group_id") or "").strip()
        name = str(data.get("name") or "").strip()
        address = str(data.get("address") or "").strip()
        server_type = str(data.get("type") or "").strip()

        if group_id.isdigit() and name:
            found = store.lookup(int(group_id), name)
            if found:
                address, server_type = found[0], found[1]

        if not address:
            return _fail("先填服务器地址")
        try:
            address = store.normalize_address(address)
            server_type = store.normalize_type(server_type)
        except store.ServerError as e:
            return _fail(str(e))

        message = await mc_service.check_mc_status(name or "测试", address, server_type)
        # check_mc_status 正常返回 str；带图标的 Java 服返回 Message（Web 侧只要纯文本）
        text = str(message) if not isinstance(message, str) else message
        return _ok({"ok": "查询失败" not in text, "message": text}, "测试完成")

    return app