package com.gcsc.guide.controller;

import com.gcsc.guide.dto.*;
import com.gcsc.guide.service.IssueService;
import jakarta.validation.Valid;
import lombok.RequiredArgsConstructor;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.domain.Sort;
import org.springframework.data.web.PageableDefault;
import org.springframework.http.ResponseEntity;
import org.springframework.security.core.Authentication;
import org.springframework.web.bind.annotation.*;

import java.net.URI;
import java.util.Map;

/**
 * 이슈 관리 API
 */
@RestController
@RequestMapping("/api/issues")
@RequiredArgsConstructor
public class IssueController {

    private final IssueService issueService;

    /** 이슈 목록 (status 필터, 페이징) */
    @GetMapping
    public ResponseEntity<Page<IssueResponse>> getIssues(
            @RequestParam(required = false) String status,
            @PageableDefault(size = 20, sort = "createdAt", direction = Sort.Direction.DESC) Pageable pageable) {
        return ResponseEntity.ok(issueService.getIssues(status, pageable));
    }

    /** 이슈 생성 */
    @PostMapping
    public ResponseEntity<IssueResponse> createIssue(
            Authentication authentication,
            @Valid @RequestBody CreateIssueRequest request) {
        Long authorId = (Long) authentication.getPrincipal();
        IssueResponse issue = issueService.createIssue(authorId, request);
        return ResponseEntity.created(URI.create("/api/issues/" + issue.id())).body(issue);
    }

    /** 이슈 상세 (코멘트 포함) */
    @GetMapping("/{id}")
    public ResponseEntity<Map<String, Object>> getIssue(@PathVariable Long id) {
        return ResponseEntity.ok(issueService.getIssueDetail(id));
    }

    /** 이슈 수정 */
    @PutMapping("/{id}")
    public ResponseEntity<IssueResponse> updateIssue(
            @PathVariable Long id,
            @RequestBody UpdateIssueRequest request) {
        return ResponseEntity.ok(issueService.updateIssue(id, request));
    }

    /** 코멘트 추가 */
    @PostMapping("/{id}/comments")
    public ResponseEntity<IssueCommentResponse> addComment(
            @PathVariable Long id,
            Authentication authentication,
            @Valid @RequestBody CreateCommentRequest request) {
        Long authorId = (Long) authentication.getPrincipal();
        IssueCommentResponse comment = issueService.addComment(id, authorId, request.body());
        return ResponseEntity.created(URI.create("/api/issues/" + id + "/comments/" + comment.id()))
            .body(comment);
    }
}