"""
Art-DAG L1 Server Application Factory.

Creates and configures the FastAPI application with all routers and middleware.
"""

from pathlib import Path
from fastapi import FastAPI
from fastapi.staticfiles import StaticFiles

from artdag_common import create_jinja_env

from .config import settings


def create_app() -> FastAPI:
    """
    Create and configure the L1 FastAPI application.

    Returns:
        Configured FastAPI instance
    """
    app = FastAPI(
        title="Art-DAG L1 Server",
        description="Content-addressed media processing with distributed execution",
        version="1.0.0",
    )

    # Initialize Jinja2 templates
    template_dir = Path(__file__).parent / "templates"
    app.state.templates = create_jinja_env(template_dir)

    # Include routers
    from .routers import auth, storage, api, recipes, cache, runs, home

    # Home and auth routers (root level)
    app.include_router(home.router, tags=["home"])
    app.include_router(auth.router, prefix="/auth", tags=["auth"])

    # Feature routers
    app.include_router(storage.router, prefix="/storage", tags=["storage"])
    app.include_router(api.router, prefix="/api", tags=["api"])

    # Runs router - handles both /runs and /run/{id} patterns
    app.include_router(runs.router, prefix="/runs", tags=["runs"])
    # Also mount at /run for single-run detail URLs
    from fastapi import APIRouter
    run_detail_router = APIRouter()
    @run_detail_router.get("/{run_id}")
    async def run_detail_redirect(run_id: str, request):
        from .routers.runs import run_detail
        return await run_detail(run_id, request)
    app.include_router(run_detail_router, prefix="/run", tags=["runs"])

    # Recipes router - handles both /recipes and /recipe/{id} patterns
    app.include_router(recipes.router, prefix="/recipes", tags=["recipes"])
    recipe_detail_router = APIRouter()
    @recipe_detail_router.get("/{recipe_id}")
    async def recipe_detail_redirect(recipe_id: str, request):
        from .routers.recipes import get_recipe
        return await get_recipe(recipe_id, request)
    app.include_router(recipe_detail_router, prefix="/recipe", tags=["recipes"])

    # Cache router - handles /cache and /media
    app.include_router(cache.router, prefix="/cache", tags=["cache"])
    # Also mount media list at /media for convenience
    from fastapi import APIRouter as MediaRouter
    media_router = MediaRouter()
    @media_router.get("")
    async def media_list_redirect(request, offset: int = 0, limit: int = 24):
        from .routers.cache import list_media
        return await list_media(request, offset, limit)
    app.include_router(media_router, prefix="/media", tags=["media"])

    return app


# Create the default app instance
app = create_app()