package com.guams.review.controller;

import com.guams.review.exception.NotFoundException;
import com.guams.review.modele.dao.Post;
import com.guams.review.service.PostService;
import lombok.RequiredArgsConstructor;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.util.Assert;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.time.LocalDate;
import java.util.List;

@RequiredArgsConstructor
@RestController
@RequestMapping("/api/posts")
public class PostController {

    private final PostService postService;

    @GetMapping
    public List<Post> listPosts() {
        return postService.list();
    }

    @GetMapping("/{id}")
    public Post findPost(@PathVariable Long id) {
        return postService.findById(id).orElseThrow(() -> new NotFoundException("Post not found"));
    }

    @PutMapping("/{id}")
    public void updatePost(@PathVariable Long id, @RequestBody Post updatedPost) {
        Post postToUpdate = postService.findById(id).orElseThrow(() -> new NotFoundException("Post not found"));
        postService.insert(updatedPost
                .setId(postToUpdate.getId())
                .setIllustration(postToUpdate.getIllustration())
                .setPublicationDate(postToUpdate.getPublicationDate()));
    }

    @PutMapping(value = "{id}/illustration", consumes = {MediaType.MULTIPART_FORM_DATA_VALUE})
    public void updateIllustration(@PathVariable Long id, @RequestPart MultipartFile illustration) throws IOException {
        Post postToUpdate = postService.findById(id).orElseThrow(() -> new NotFoundException("Post not found"));
        postService.insert(postToUpdate.setIllustration(illustration.getBytes()));
    }

    @PostMapping
    public ResponseEntity<Post> addPost(@RequestBody Post postToCreate) {
        Assert.isNull(postToCreate.getId(), "Post id must be null");
        return new ResponseEntity<>(postService.insert(postToCreate.setPublicationDate(LocalDate.now())), HttpStatus.CREATED);
    }

    @DeleteMapping("{id}")
    public void deletePost(@PathVariable Long id) {
        Post postToDelete = postService.findById(id).orElseThrow(() -> new NotFoundException("Post not found"));
        postService.delete(postToDelete.getId());
    }

}