from fastapi import FastAPI, HTTPException
from fastapi.middleware.cors import CORSMiddleware
from pydantic import BaseModel
from typing import Literal
from datetime import datetime
from fastapi.staticfiles import StaticFiles

# Import from the same backend folder
from .signal_logic import generate_trading_signal

app = FastAPI(
    title="Uzair Forex Club",
    description="Binary Options Trading Signal Generator",
    version="1.0.0"
)

app.mount("/static", StaticFiles(directory="backend/static"), name="static")


# Add CORS middleware
app.add_middleware(
    CORSMiddleware,
    allow_origins=["*"],
    allow_credentials=True,
    allow_methods=["*"],
    allow_headers=["*"],
)


class SignalRequest(BaseModel):
    platform: str
    currency_pair: str
    timeframe: str

class SignalResponse(BaseModel):
    signal: Literal["BUY", "SELL"]
    confidence: float
    timestamp: str
    next_signal_in: int
    platform: str
    currency_pair: str
    timeframe: str
    indicators: dict = None

@app.get("/")
def read_root():
    """Root endpoint"""
    return {
        "message": "Uzair Forex Club",
        "version": "1.0.0",
        "status": "active",
        "endpoints": {
            "signal": "/api/signal",
            "platforms": "/api/platforms",
            "currency_pairs": "/api/currency-pairs",
            "timeframes": "/api/timeframes",
            "health": "/health"
        }
    }

@app.post("/api/signal", response_model=SignalResponse)
async def get_signal(request: SignalRequest):
    """
    Generate trading signal based on platform, currency pair, and timeframe
    
    Parameters:
    - platform: Trading platform name
    - currency_pair: Currency pair to trade
    - timeframe: Trading timeframe
    
    Returns:
    - SignalResponse with BUY/SELL signal and confidence
    """
    try:
        # Generate signal using imported logic
        result = generate_trading_signal(
            platform=request.platform,
            currency_pair=request.currency_pair,
            timeframe=request.timeframe
        )
        
        return SignalResponse(
            signal=result["signal"],
            confidence=result["confidence"],
            timestamp=datetime.now().isoformat(),
            next_signal_in=result["next_signal_in"],
            platform=request.platform,
            currency_pair=request.currency_pair,
            timeframe=request.timeframe,
            indicators=result.get("indicators", {})
        )
    
    except Exception as e:
        raise HTTPException(status_code=500, detail=f"Error generating signal: {str(e)}")

@app.get("/api/platforms")
def get_platforms():
    """Get list of supported trading platforms"""
    return {
        "platforms": [
            {"name": "QUOTEX", "icon": "🔴"},
            {"name": "POCKET OPTION", "icon": "🔵"},
            {"name": "BINOMO", "icon": "⚡"},
            {"name": "OLYMP", "icon": "⭕"},
            {"name": "IQ OPTION", "icon": "🟠"},
            {"name": "EXPERT OPTION", "icon": "🔷"}
        ]
    }

@app.get("/api/currency-pairs")
def get_currency_pairs():
    """Get list of supported currency pairs"""
    return {
        "pairs": [
            "USD/BRL (OTC)",
            "USD/BRL (CTC)",
            "USD/ARS (OTC)",
            "USD/DZD (OTC)",
            "USD/COP (OTC)",
            "CAD/CHF (OTC)",
            "USD/BDT (OTC)",
            "USD/PKR (OTC)",
            "EUR/USD (OTC)",
            "GBP/USD (OTC)",
            "USD/JPY (OTC)",
            "AUD/USD (OTC)"
        ]
    }

@app.get("/api/timeframes")
def get_timeframes():
    """Get list of supported timeframes"""
    return {
        "timeframes": [
            {"value": "5s", "label": "5 seconds"},
            {"value": "10s", "label": "10 seconds"},
            {"value": "15s", "label": "15 seconds"},
            {"value": "30s", "label": "30 seconds"},
            {"value": "1m", "label": "1 minute"},
            {"value": "2m", "label": "2 minutes"},
            {"value": "5m", "label": "5 mintes"}
        ]
    }

@app.get("/health")
def health_check():
    """Health check endpoint"""
    return {
        "status": "healthy",
        "timestamp": datetime.now().isoformat(),
        "service": "Uzair Fortex Club API"
    }

@app.get("/api/stats")
def get_stats():
    """Get API statistics (placeholder)"""
    return {
        "total_signals": 0,
        "accuracy": 0.0,
        "uptime": "100%"
    }

if __name__ == "__main__":
    import uvicorn
    print("🚀 Starting Uzair Forex Club API Server...")
    print("📡 API Documentation: http://localhost:8000/docs")
    print("🔗 API Endpoint: http://localhost:8000")
    # st.image("http://127.0.0.1:8000/static/mylogo.png", width=150)
    uvicorn.run(app, host="0.0.0.0", port=8000, reload=True)