"""HTMX + FastAPI web frontend for CheddahBot."""

from __future__ import annotations

import logging
from pathlib import Path
from typing import TYPE_CHECKING

from fastapi import FastAPI
from fastapi.templating import Jinja2Templates
from starlette.staticfiles import StaticFiles

if TYPE_CHECKING:
    from ..agent_registry import AgentRegistry
    from ..config import Config
    from ..db import Database
    from ..llm import LLMAdapter
    from ..notifications import NotificationBus
    from ..scheduler import Scheduler

log = logging.getLogger(__name__)

_TEMPLATE_DIR = Path(__file__).resolve().parent.parent / "templates"
_STATIC_DIR = Path(__file__).resolve().parent.parent / "static"

templates = Jinja2Templates(directory=str(_TEMPLATE_DIR))


def mount_web_app(
    app: FastAPI,
    registry: AgentRegistry,
    config: Config,
    llm: LLMAdapter,
    notification_bus: NotificationBus | None = None,
    scheduler: Scheduler | None = None,
    db: Database | None = None,
):
    """Mount all web routes and static files onto the FastAPI app."""
    # Wire dependencies into route modules
    from . import routes_chat, routes_pages, routes_sse
    from .routes_chat import router as chat_router
    from .routes_pages import router as pages_router
    from .routes_sse import router as sse_router

    routes_pages.setup(registry, config, llm, templates, db=db, scheduler=scheduler)
    routes_chat.setup(registry, config, llm, db, templates)
    routes_sse.setup(notification_bus, scheduler, db)

    app.include_router(chat_router)
    app.include_router(sse_router)
    # Pages router last (it has catch-all GET /)
    app.include_router(pages_router)

    # Static files
    app.mount("/static", StaticFiles(directory=str(_STATIC_DIR)), name="static")

    log.info("Web UI mounted (templates: %s, static: %s)", _TEMPLATE_DIR, _STATIC_DIR)