package com.backend.hls.proxy.controller;

import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.support.ServletUriComponentsBuilder;

import com.backend.hls.proxy.exception.FetchFailException;
import com.backend.hls.proxy.exception.PlaylistParseException;
import com.backend.hls.proxy.service.PlaylistProxyService;

@RestController
public class ProxyController {

    private final PlaylistProxyService playlistProxyService;

    public ProxyController(PlaylistProxyService playlistProxyService) {
        this.playlistProxyService = playlistProxyService;
    }

    @GetMapping("/proxy")
    public ResponseEntity<?> proxy(@RequestParam("url") String url) throws FetchFailException, PlaylistParseException {
        String fullUrl = ServletUriComponentsBuilder.fromCurrentRequestUri().build().toUriString();
        String baseUrl = fullUrl.substring(0, fullUrl.indexOf("/", 8));
        String result = playlistProxyService.proxyPlaylist(url, baseUrl);
        return ResponseEntity.ok(result);
    }

}