import sys
sys.path.append("./")
import os
import uvicorn
import shutil

from fastapi import FastAPI, File, UploadFile, Request
from fastapi.responses import HTMLResponse
from fastapi.templating import Jinja2Templates
from fastapi.staticfiles import StaticFiles
from src.tracker.signboard_track import SignboardTracker

signboardTracker = SignboardTracker()

app = FastAPI()
app.mount("/static", StaticFiles(directory="static"), name="static")
templates = Jinja2Templates(directory="templates")

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

@app.post("/uploadfile")
async def create_upload_file(file: UploadFile = File(...)):
    if file.content_type.split("/")[0] != "video":
        return {"file_name": file.filename,
                "file_type": file.content_type,
                "warning": "Need a video file instead."}
    else:
        output_folder = ('.').join(file.filename.split('.')[:-1])
        if os.path.exists("./static/videos/" + output_folder):
            shutil.rmtree("./static/videos/" + output_folder)
        os.mkdir("./static/videos/" + output_folder)
        os.mkdir("./static/videos/" + output_folder + "/frames")
        with open(f"./static/videos/{output_folder}/{file.filename}", "wb") as buffer:
            shutil.copyfileobj(file.file, buffer)
        output = f"./static/videos/{output_folder}/{('.').join(file.filename.split('.')[:-1])}_traked.{file.filename.split('.')[-1]}"
        output_format = "mp4v"
        results = signboardTracker.inference_signboard(f"./static/videos/{output_folder}/{file.filename}", output, output_format, "./static/videos/" + output_folder + "/frames")
        return {"results": results}

if __name__ == "__main__":
    # main()
    uvicorn.run("api.tracker:app", reload=True, port=8000)