"""Admin routes for 3x-ui API panels."""

from __future__ import annotations

import json

from fastapi import APIRouter, Depends, Form, Request, status
from fastapi.responses import HTMLResponse, RedirectResponse
from sqlalchemy.ext.asyncio import AsyncSession

from app.database import get_db
from app.models import XuiPanel
from app.routers.admin import _is_redirect, require_admin
from app.services import xui_panels as xui_service

router = APIRouter(prefix="/admin/xui", tags=["xui"])


@router.get("", response_class=HTMLResponse)
async def xui_list(request: Request, db: AsyncSession = Depends(get_db), admin=Depends(require_admin)):
    if _is_redirect(admin):
        return admin
    panels = await xui_service.list_panels(db)
    return request.app.state.templates.TemplateResponse(
        "admin/xui.html",
        {
            "request": request,
            "admin": admin,
            "panels": panels,
            "app_name": request.app.state.settings.app_name,
            "flash": request.query_params.get("flash"),
        },
    )


@router.post("")
async def xui_create(
    name: str = Form(""),
    base_url: str = Form(...),
    username: str = Form(""),
    password: str = Form(""),
    api_token: str = Form(""),
    verify_ssl: str = Form(""),
    db: AsyncSession = Depends(get_db),
    admin=Depends(require_admin),
):
    if _is_redirect(admin):
        return admin
    try:
        await xui_service.create_panel(
            db,
            name=name,
            base_url=base_url,
            username=username,
            password=password,
            api_token=api_token,
            verify_ssl=verify_ssl == "1",
        )
    except Exception as exc:  # noqa: BLE001
        return RedirectResponse(
            f"/admin/xui?flash=error:{exc}",
            status_code=status.HTTP_303_SEE_OTHER,
        )
    return RedirectResponse("/admin/xui?flash=created", status_code=status.HTTP_303_SEE_OTHER)


@router.post("/{panel_id}/check")
async def xui_check(
    panel_id: int,
    db: AsyncSession = Depends(get_db),
    admin=Depends(require_admin),
):
    if _is_redirect(admin):
        return admin
    try:
        await xui_service.check_panel(db, panel_id)
    except Exception as exc:  # noqa: BLE001
        return RedirectResponse(
            f"/admin/xui?flash=error:{exc}",
            status_code=status.HTTP_303_SEE_OTHER,
        )
    return RedirectResponse("/admin/xui?flash=ok", status_code=status.HTTP_303_SEE_OTHER)


@router.post("/{panel_id}/delete")
async def xui_delete(
    panel_id: int,
    db: AsyncSession = Depends(get_db),
    admin=Depends(require_admin),
):
    if _is_redirect(admin):
        return admin
    await xui_service.delete_panel(db, panel_id)
    return RedirectResponse("/admin/xui?flash=deleted", status_code=status.HTTP_303_SEE_OTHER)


@router.get("/{panel_id}", response_class=HTMLResponse)
async def xui_detail(
    panel_id: int,
    request: Request,
    db: AsyncSession = Depends(get_db),
    admin=Depends(require_admin),
):
    if _is_redirect(admin):
        return admin
    panel = await db.get(XuiPanel, panel_id)
    if not panel:
        return RedirectResponse("/admin/xui", status_code=status.HTTP_303_SEE_OTHER)

    data = None
    error = None
    try:
        data = await xui_service.fetch_panel_data(panel)
    except Exception as exc:  # noqa: BLE001
        error = str(exc)

    info = None
    if panel.panel_info:
        try:
            info = json.loads(panel.panel_info)
        except json.JSONDecodeError:
            info = None

    return request.app.state.templates.TemplateResponse(
        "admin/xui_detail.html",
        {
            "request": request,
            "admin": admin,
            "panel": panel,
            "data": data,
            "info": info,
            "error": error,
            "app_name": request.app.state.settings.app_name,
            "flash": request.query_params.get("flash"),
        },
    )


@router.post("/{panel_id}/clients")
async def xui_add_client(
    panel_id: int,
    email: str = Form(...),
    inbound_id: int = Form(...),
    total_gb: int = Form(0),
    limit_ip: int = Form(0),
    db: AsyncSession = Depends(get_db),
    admin=Depends(require_admin),
):
    if _is_redirect(admin):
        return admin
    panel = await db.get(XuiPanel, panel_id)
    if not panel:
        return RedirectResponse("/admin/xui", status_code=status.HTTP_303_SEE_OTHER)
    try:
        await xui_service.add_xui_client(
            panel,
            email=email.strip(),
            inbound_ids=[inbound_id],
            total_gb=total_gb,
            limit_ip=limit_ip,
        )
    except Exception as exc:  # noqa: BLE001
        return RedirectResponse(
            f"/admin/xui/{panel_id}?flash=error:{exc}",
            status_code=status.HTTP_303_SEE_OTHER,
        )
    return RedirectResponse(
        f"/admin/xui/{panel_id}?flash=client_created",
        status_code=status.HTTP_303_SEE_OTHER,
    )