package com.srsystem.controller;

import com.srsystem.config.jwt.CurrentUser;
import com.srsystem.dto.ApiResponse;
import com.srsystem.dto.CreateProjectRequest;
import com.srsystem.entity.Employee;
import com.srsystem.entity.Project;
import com.srsystem.entity.enums.ProjectStatus;
import com.srsystem.service.ProjectService;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.security.SecurityRequirement;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.validation.Valid;
import lombok.RequiredArgsConstructor;
import org.springframework.http.ResponseEntity;
import org.springframework.security.access.prepost.PreAuthorize;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@Tag(name = "Project", description = "프로젝트 관리 API")
@RestController
@RequestMapping("/api/v1/projects")
@RequiredArgsConstructor
@SecurityRequirement(name = "bearerAuth")
public class ProjectController {

    private final ProjectService projectService;

    @Operation(summary = "내 프로젝트 목록 조회", description = "로그인한 사용자가 참여 중인 프로젝트 목록을 조회합니다")
    @PreAuthorize("hasAnyRole('EMPLOYEE', 'MANAGER', 'ADMIN')")
    @GetMapping("/my")
    public ResponseEntity<ApiResponse<List<Project>>> getMyProjects(@CurrentUser Employee currentUser) {
        List<Project> projects = projectService.getMyProjects(currentUser.getEmpId());
        return ResponseEntity.ok(ApiResponse.ok(projects));
    }

    @Operation(summary = "프로젝트 단건 조회", description = "프로젝트 ID 로 단일 프로젝트 정보를 조회합니다")
    @PreAuthorize("hasAnyRole('EMPLOYEE', 'MANAGER', 'ADMIN')")
    @GetMapping("/{projectId}")
    public ResponseEntity<ApiResponse<Project>> getProject(@PathVariable Long projectId) {
        Project project = projectService.getProject(projectId);
        return ResponseEntity.ok(ApiResponse.ok(project));
    }

    @Operation(summary = "프로젝트 목록 조회", description = "전체 프로젝트 목록을 조회합니다. 상태 필터 옵션 포함")
    @PreAuthorize("hasAnyRole('MANAGER', 'ADMIN')")
    @Transactional(readOnly = true)
    @GetMapping
    public ResponseEntity<ApiResponse<List<Project>>> findAll(
            @RequestParam(required = false) ProjectStatus status) {
        List<Project> projects = projectService.findAll(status);
        return ResponseEntity.ok(ApiResponse.ok(projects));
    }

    @Operation(summary = "프로젝트 생성", description = "새로운 프로젝트를 등록합니다")
    @PreAuthorize("hasAnyRole('MANAGER', 'ADMIN')")
    @PostMapping
    public ResponseEntity<ApiResponse<Project>> create(
            @RequestBody @Valid CreateProjectRequest request) {
        Project project = projectService.create(request);
        return ResponseEntity.ok(ApiResponse.ok("프로젝트가 등록되었습니다", project));
    }

    @Operation(summary = "프로젝트 수정", description = "프로젝트 정보를 수정합니다")
    @PreAuthorize("hasAnyRole('MANAGER', 'ADMIN')")
    @PutMapping("/{projectId}")
    public ResponseEntity<ApiResponse<Project>> update(
            @PathVariable Long projectId,
            @RequestBody @Valid CreateProjectRequest request) {
        Project project = projectService.update(projectId, request);
        return ResponseEntity.ok(ApiResponse.ok("프로젝트가 수정되었습니다", project));
    }

    @Operation(summary = "프로젝트 삭제", description = "프로젝트를 삭제합니다 (Soft Delete)")
    @PreAuthorize("hasRole('ADMIN')")
    @DeleteMapping("/{projectId}")
    public ResponseEntity<ApiResponse<Void>> delete(
            @PathVariable Long projectId) {
        projectService.delete(projectId);
        return ResponseEntity.ok(ApiResponse.ok("프로젝트가 삭제되었습니다", null));
    }
}