from fastapi.responses import HTMLResponse
from fastapi.templating import Jinja2Templates
from fastapi import FastAPI, Request, HTTPException
from fastapi.middleware.cors import CORSMiddleware
from utils import StockDataFetcher

app = FastAPI(swagger_ui_parameters={"syntaxHighlight.theme": "obsidian"})

fetcher = StockDataFetcher()

origins = ["*"]

app.add_middleware(
    CORSMiddleware,
    allow_origins=origins,
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)

templates = Jinja2Templates(directory="templates")

@app.get("/", response_class=HTMLResponse)
async def read_root(request: Request):
    return templates.TemplateResponse("hello.html", {"request": request})


@app.get('/ltp')
async def get_data(ticker: str):
    try:
        response = fetcher.fetch_latest_price(ticker)
        return {'ltp' :response}
    except:
        return {"Timeout" : "Error"}

@app.get('/historical')
async def get_stocks_data(ticker: str, intervals: int, days: int):
    try:
        response = fetcher.fetch_stock_data(ticker, 15, 10).to_dict(orient="records")
        return {"data" : response}
    except:
        return {"Timeout" : "Error"}

@app.get('/chain')
async def get_stocks_data(ticker: str):
    try:
        response, exp = fetcher.fetch_option_chain(ticker).to_dict(orient="records")
        return {"data" : response}
    except:
        return {"Timeout" : "Error"}

@app.get('/search')
async def get_stocks_data(ticker: str):
    try:
        response = fetcher.search_entity(ticker)
        return {"data" : response}
    except:
        return {"Timeout" : "Error"}

# @app.get('/news')
# async def get_stocks_data(ticker: str, page: int, size: int):
#     try:
#         response = fetcher.fetch_stock_news(ticker, page=page, size=size).to_dict(orient="records")
#         return {"data" : response}
#     except:
#         return {"Timeout" : "Error"}

# @app.get('/all')
# async def get_stocks_data():
#     try:
#         response = fetcher.fetch_all_stock().to_dict(orient="records")
#         return {"data" : response}
#     except:
#         return {"Timeout" : "Error"}

@app.get('/signal')
async def get_stocks_data(index: str):
    try:
        response = fetcher.realtime_signal(index).tail(1).to_dict(orient="records")[0]
        return {"data" : response}
    except:
        return {"Timeout" : "Error"}