package com.mydreamjob.bidirectionalmatch;

import com.mydreamjob.common.api.ApiResponse;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.servlet.http.HttpServletRequest;
import lombok.RequiredArgsConstructor;
import org.springframework.http.ResponseEntity;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.web.bind.annotation.*;

import java.util.Map;

/**
 * 匹配后沟通解锁接口：基于 application 创建/获取直聊会话
 */
@Tag(name = "双向匹配沟通", description = "匹配成功后创建或获取直聊会话（幂等）")
@RestController
@RequiredArgsConstructor
public class MatchConversationController {

    private final MatchConversationService matchConversationService;

    @Operation(summary = "创建/获取匹配会话", description = "仅 MATCHED 双方可调用；重复调用返回同一会话")
    @PostMapping("/applications/{id}/conversation")
    public ResponseEntity<ApiResponse<Map<String, Object>>> createOrGetConversation(
            @PathVariable Long id,
            HttpServletRequest request) {
        Long userId = resolveUserId(request);
        Map<String, Object> conversation = matchConversationService.createOrGetMatchConversation(userId, id);
        return ResponseEntity.ok(ApiResponse.ok(conversation, getRequestId(request)));
    }

    private Long resolveUserId(HttpServletRequest request) {
        Authentication auth = SecurityContextHolder.getContext().getAuthentication();
        if (auth == null || !auth.isAuthenticated())
            throw new com.mydreamjob.common.exception.BusinessException(
                    com.mydreamjob.common.exception.ErrorCode.UNAUTHORIZED);
        return Long.valueOf(auth.getName());
    }

    private String getRequestId(HttpServletRequest request) {
        return request.getHeader("X-Request-Id");
    }
}