package com.epam.bazaar.backend.api.endpoints;

import com.epam.bazaar.backend.api.models.Advertisement;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.hateoas.EntityLinks;
import org.springframework.hateoas.ExposesResourceFor;
import org.springframework.hateoas.Resources;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;

import java.util.Arrays;
import java.util.List;

import static com.google.common.base.Preconditions.checkNotNull;


@Controller
@RequestMapping(
        path = "/advertisements",
        consumes = MediaType.APPLICATION_JSON_UTF8_VALUE,
        produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
@ExposesResourceFor(Advertisement.class)
public class AdvertisementEndpoint {

    private final EntityLinks entityLinks;

    @Autowired
    public AdvertisementEndpoint(EntityLinks entityLinks) {
        this.entityLinks = checkNotNull(entityLinks);
    }

    @GetMapping
    public HttpEntity<Resources<Advertisement>> list() {
        List<Advertisement> advertisements = Arrays.asList(
                new Advertisement("id-111", "Advertisement 1"),
                new Advertisement("id-222", "Advertisement 2"),
                new Advertisement("id-333", "Advertisement 3")
        );
        Resources<Advertisement> resources = new Resources<>(advertisements);
        resources.add(entityLinks.linkToCollectionResource(Advertisement.class));

        return new ResponseEntity<>(resources, HttpStatus.OK);
    }

}