from fastapi import FastAPI, Request, Form
from fastapi.templating import Jinja2Templates
from fastapi.staticfiles import StaticFiles
from fastapi.responses import HTMLResponse, RedirectResponse
from .config import settings
from .routers.proxy import router as proxy_router
from starlette.middleware.sessions import SessionMiddleware

app = FastAPI(title="EIP Rotation Service")

# 设置模板目录
templates = Jinja2Templates(directory="app/templates")

# 会话中间件（用于简单登录态）
app.add_middleware(SessionMiddleware, secret_key=settings.session_secret)


@app.get("/health")
def health_check():
    return {"status": "ok"}


@app.get("/", response_class=HTMLResponse)
async def index(request: Request, id: str = None):
    """主页 - IP轮换控制面板"""
    if not request.session.get("authenticated"):
        return RedirectResponse(url="/login", status_code=302)
    return templates.TemplateResponse("index.html", {
        "request": request, 
        "client_id": id or "1"  # 默认ID为1
    })


app.include_router(proxy_router, prefix="/proxy", tags=["proxy"])


@app.get("/login", response_class=HTMLResponse)
async def login_page(request: Request):
    return templates.TemplateResponse("login.html", {"request": request, "error": None})


@app.post("/login")
async def login_submit(request: Request, username: str = Form(...), password: str = Form(...)):
    if username == settings.admin_username and password == settings.admin_password:
        request.session["authenticated"] = True
        return RedirectResponse(url="/", status_code=302)
    # 登录失败，回到登录页并提示
    return templates.TemplateResponse("login.html", {"request": request, "error": "用户名或密码错误"}, status_code=401)


@app.get("/logout")
async def logout(request: Request):
    request.session.clear()
    return RedirectResponse(url="/login", status_code=302)