from fastapi import FastAPI, Request
from fastapi.responses import JSONResponse

from app.api.controllers.admin import router as admin_router
from app.api.controllers.agent_runs import router as agent_runs_router
from app.api.controllers.conversations import router as conversations_router
from app.api.controllers.health import router as health_router
from app.api.controllers.knowledge import router as knowledge_router
from app.api.controllers.offsite_fund import operation_router as offsite_operation_router
from app.api.controllers.offsite_fund import router as offsite_fund_router
from app.api.controllers.public_platform import router as public_platform_router
from app.core.config import get_settings
from app.core.errors import AgentError


def create_app() -> FastAPI:
    settings = get_settings()
    application = FastAPI(title=settings.app_name, version="0.1.0")
    @application.exception_handler(AgentError)
    async def agent_error_handler(request: Request, exc: AgentError) -> JSONResponse:
        context = getattr(request.state, "request_context", None)
        return JSONResponse(status_code=exc.status_code, content={
            "error": {"code": exc.code, "message": exc.message,
                      "retryable": exc.status_code >= 500, "field_errors": []},
            "meta": {"trace_id": context.trace_id if context else ""},
        })
    application.include_router(agent_runs_router)
    application.include_router(conversations_router)
    application.include_router(public_platform_router)
    application.include_router(offsite_fund_router)
    application.include_router(offsite_operation_router)
    application.include_router(knowledge_router)
    application.include_router(health_router)
    application.include_router(admin_router)
    return application


app = create_app()