from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
import os

from email_sender import EmailSender

app = FastAPI(title="Email Sender Service")

class SendRequest(BaseModel):
    subject: str
    content: str

# create a single EmailSender instance for the app
es = EmailSender()

@app.get("/health")
def health():
    return {"status": "ok"}

@app.post("/send")
def send_email(req: SendRequest):
    """Send an email from configured sender to configured recipient.

    Expects JSON: {"subject": "...", "content": "..."}
    """
    # basic config validation
    missing = []
    if not es.email_id:
        missing.append("email")
    if not es.apppassword:
        missing.append("apppassword")
    if not es.receipt_email_id:
        missing.append("receipt_email")
    if missing:
        raise HTTPException(status_code=500, detail={"error": "missing_config", "missing": missing})

    try:
        es.send_to_recipient(subject=req.subject, content=req.content)
        return {"status": "sent", "to": es.receipt_email_id}
    except Exception as e:
        # return the error message but avoid leaking sensitive info
        raise HTTPException(status_code=500, detail={"error": "send_failed", "message": str(e)})