package com.snp.batch.global.controller;

import com.snp.batch.common.web.ApiResponse;
import com.snp.batch.global.dto.BypassConfigRequest;
import com.snp.batch.global.dto.BypassConfigResponse;
import com.snp.batch.global.dto.BypassFieldDto;
import com.snp.batch.global.dto.CodeGenerationResult;
import com.snp.batch.global.model.BypassApiConfig;
import com.snp.batch.global.repository.BypassApiConfigRepository;
import com.snp.batch.service.BypassCodeGenerator;
import com.snp.batch.service.BypassConfigService;
import com.snp.batch.service.JsonSchemaParser;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
import java.util.Map;

/**
 * BYPASS API 설정 관리 및 코드 생성 컨트롤러
 */
@Slf4j
@RestController
@RequestMapping("/api/bypass-config")
@RequiredArgsConstructor
@Tag(name = "Bypass Config", description = "BYPASS API 설정 관리 및 코드 생성")
public class BypassConfigController {

    private final BypassConfigService bypassConfigService;
    private final BypassCodeGenerator bypassCodeGenerator;
    private final JsonSchemaParser jsonSchemaParser;
    private final BypassApiConfigRepository configRepository;

    @Operation(summary = "설정 목록 조회")
    @GetMapping
    public ResponseEntity<ApiResponse<List<BypassConfigResponse>>> getConfigs() {
        return ResponseEntity.ok(ApiResponse.success(bypassConfigService.getConfigs()));
    }

    @Operation(summary = "설정 상세 조회")
    @GetMapping("/{id}")
    public ResponseEntity<ApiResponse<BypassConfigResponse>> getConfig(@PathVariable Long id) {
        return ResponseEntity.ok(ApiResponse.success(bypassConfigService.getConfig(id)));
    }

    @Operation(summary = "설정 등록")
    @PostMapping
    public ResponseEntity<ApiResponse<BypassConfigResponse>> createConfig(
            @RequestBody BypassConfigRequest request) {
        return ResponseEntity.ok(ApiResponse.success(bypassConfigService.createConfig(request)));
    }

    @Operation(summary = "설정 수정")
    @PutMapping("/{id}")
    public ResponseEntity<ApiResponse<BypassConfigResponse>> updateConfig(
            @PathVariable Long id,
            @RequestBody BypassConfigRequest request) {
        return ResponseEntity.ok(ApiResponse.success(bypassConfigService.updateConfig(id, request)));
    }

    @Operation(summary = "설정 삭제")
    @DeleteMapping("/{id}")
    public ResponseEntity<ApiResponse<Void>> deleteConfig(@PathVariable Long id) {
        bypassConfigService.deleteConfig(id);
        return ResponseEntity.ok(ApiResponse.success("삭제 완료", null));
    }

    @Operation(
            summary = "코드 생성",
            description = "등록된 설정의 도메인 전체를 기반으로 Controller, Service, DTO Java 소스 코드를 생성합니다. 같은 도메인의 모든 설정을 하나의 Controller로 합칩니다."
    )
    @PostMapping("/{id}/generate")
    public ResponseEntity<ApiResponse<CodeGenerationResult>> generateCode(
            @PathVariable Long id,
            @RequestParam(defaultValue = "false") boolean force) {
        try {
            BypassApiConfig config = configRepository.findById(id)
                    .orElseThrow(() -> new IllegalArgumentException("설정을 찾을 수 없습니다: " + id));

            // 같은 도메인의 모든 설정을 조회하여 함께 생성
            List<BypassApiConfig> domainConfigs = configRepository.findByDomainNameOrderById(config.getDomainName());

            CodeGenerationResult result = bypassCodeGenerator.generate(domainConfigs, force);

            // 같은 도메인의 모든 설정을 generated로 마킹
            domainConfigs.forEach(c -> bypassConfigService.markAsGenerated(c.getId()));

            return ResponseEntity.ok(ApiResponse.success(result));
        } catch (IllegalStateException e) {
            return ResponseEntity.badRequest().body(ApiResponse.error(e.getMessage()));
        } catch (Exception e) {
            log.error("코드 생성 실패", e);
            return ResponseEntity.internalServerError().body(ApiResponse.error("코드 생성 실패: " + e.getMessage()));
        }
    }

    @Operation(
            summary = "JSON 샘플 파싱",
            description = "JSON 샘플에서 DTO 필드 목록을 추출합니다."
    )
    @PostMapping("/parse-json")
    public ResponseEntity<ApiResponse<List<BypassFieldDto>>> parseJson(@RequestBody String jsonSample) {
        try {
            List<BypassFieldDto> fields = jsonSchemaParser.parse(jsonSample);
            return ResponseEntity.ok(ApiResponse.success(fields));
        } catch (Exception e) {
            return ResponseEntity.badRequest().body(ApiResponse.error("JSON 파싱 실패: " + e.getMessage()));
        }
    }

    @Operation(
            summary = "WebClient 빈 목록",
            description = "사용 가능한 WebClient 빈 이름 목록을 반환합니다."
    )
    @GetMapping("/webclient-beans")
    public ResponseEntity<ApiResponse<List<Map<String, String>>>> getWebclientBeans() {
        List<Map<String, String>> beans = List.of(
                Map.of("name", "maritimeApiWebClient", "description", "Ship API (shipsapi.maritime.spglobal.com)"),
                Map.of("name", "maritimeAisApiWebClient", "description", "AIS API (aisapi.maritime.spglobal.com)"),
                Map.of("name", "maritimeServiceApiWebClient", "description", "Web Service API (webservices.maritime.spglobal.com)")
        );
        return ResponseEntity.ok(ApiResponse.success(beans));
    }
}