"""
web/app.py
----------
FastAPI entrypoint for the Adobe Sign → DocuSign Migrator web app.

Run with:
    uvicorn web.app:app --reload --port 8000

From the project root.
"""

from fastapi import FastAPI
from fastapi.staticfiles import StaticFiles
from fastapi.responses import FileResponse, HTMLResponse
import logging
import os

from web.config import settings
from web.routers import auth, templates, migrate, verify, audit, admin

import sys
sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
from src.utils.log_sanitizer import install_sanitizing_filter

install_sanitizing_filter()

logger = logging.getLogger(__name__)

_DEFAULT_SECRET = "dev-secret-change-in-production"
if settings.session_secret_key == _DEFAULT_SECRET:
    logger.warning(
        "SESSION_SECRET_KEY is using the default dev value — set a random secret in .env before exposing this app"
    )

app = FastAPI(
    title="Adobe Sign → DocuSign Migrator",
    version=settings.version,
    docs_url="/api/docs",
)

# Routers
app.include_router(auth.router,      prefix="/api/auth",      tags=["auth"])
app.include_router(templates.router, prefix="/api/templates", tags=["templates"])
app.include_router(migrate.router,   prefix="/api/migrate",   tags=["migrate"])
app.include_router(verify.router,    prefix="/api/verify",    tags=["verify"])
app.include_router(audit.router,     prefix="/api/audit",     tags=["audit"])
app.include_router(admin.router,     prefix="/api/admin",     tags=["admin"])

# Static files (frontend)
_static_dir = os.path.join(os.path.dirname(__file__), "static")
if os.path.isdir(_static_dir):
    app.mount("/static", StaticFiles(directory=_static_dir), name="static")


@app.get("/health", tags=["health"])
def health():
    return {"status": "ok", "version": settings.version}


@app.get("/", include_in_schema=False)
def index():
    index_path = os.path.join(_static_dir, "index.html")
    if os.path.exists(index_path):
        with open(index_path, encoding="utf-8") as f:
            html = f.read()
        html = html.replace("{{ASSET_VERSION}}", settings.asset_version)
        return HTMLResponse(html)
    return {"message": "Adobe Sign → DocuSign Migrator API", "docs": "/api/docs"}