package com.kamco.cd.kamcoback.model;

import com.kamco.cd.kamcoback.common.utils.zip.ZipUtils;
import com.kamco.cd.kamcoback.config.api.ApiResponseDto;
import com.kamco.cd.kamcoback.model.dto.ModelMngDto;
import com.kamco.cd.kamcoback.model.dto.ModelMngDto.ModelUploadResDto;
import com.kamco.cd.kamcoback.model.service.ModelMngService;
import com.kamco.cd.kamcoback.upload.dto.UploadDto;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.media.Content;
import io.swagger.v3.oas.annotations.media.Schema;
import io.swagger.v3.oas.annotations.responses.ApiResponse;
import io.swagger.v3.oas.annotations.responses.ApiResponses;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.transaction.Transactional;
import jakarta.validation.Valid;
import java.time.LocalDate;
import java.util.UUID;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.domain.Page;
import org.springframework.http.MediaType;
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.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RequestPart;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

@Tag(name = "모델 관리", description = "모델 관리 API")
@RequiredArgsConstructor
@RestController
@RequestMapping("/api/model")
@Transactional
public class ModelMngApiController {

  private final ModelMngService modelMngService;

  @Value("${file.sync-root-dir}")
  private String syncRootDir;

  @Value("${file.sync-tmp-dir}")
  private String syncTmpDir;

  @Value("${file.sync-file-extention}")
  private String syncFileExtention;

  @Value("${file.dataset-dir}")
  private String datasetDir;

  @Value("${file.dataset-tmp-dir}")
  private String datasetTmpDir;

  @Value("${file.model-dir}")
  private String modelDir;

  @Value("${file.model-tmp-dir}")
  private String modelTmpDir;

  @Autowired private ZipUtils zipUtils;

  @Operation(summary = "모델관리 목록")
  @GetMapping
  public ApiResponseDto<Page<ModelMngDto.ModelList>> findModelMgmtList(
      @RequestParam(required = false) LocalDate startDate,
      @RequestParam(required = false) LocalDate endDate,
      @RequestParam(required = false, defaultValue = "createCompleteDttm") String sortColumn,
      @RequestParam(required = false) String modelType,
      @RequestParam(required = false) String searchVal,
      @RequestParam(defaultValue = "0") int page,
      @RequestParam(defaultValue = "20") int size) {
    ModelMngDto.searchReq searchReq = new ModelMngDto.searchReq(page, size, sortColumn + ",desc");

    Page<ModelMngDto.ModelList> result =
        modelMngService.findModelMgmtList(searchReq, startDate, endDate, modelType, searchVal);

    return ApiResponseDto.ok(result);
  }

  @Operation(summary = "모델삭제", description = "모델을 삭제 합니다.")
  @ApiResponses(
      value = {
        @ApiResponse(
            responseCode = "201",
            description = "등록 성공",
            content =
                @Content(
                    mediaType = "application/json",
                    schema = @Schema(implementation = Long.class))),
        @ApiResponse(responseCode = "400", description = "잘못된 요청 데이터", content = @Content),
        @ApiResponse(responseCode = "404", description = "코드를 찾을 수 없음", content = @Content),
        @ApiResponse(responseCode = "500", description = "서버 오류", content = @Content)
      })
  @DeleteMapping("/{uuid}")
  public ApiResponseDto<ApiResponseDto.ResponseObj> removeModel(
      @io.swagger.v3.oas.annotations.parameters.RequestBody(
              description = "모델 삭제 요청 정보",
              required = true)
          @PathVariable
          String uuid) {

    return ApiResponseDto.ok(modelMngService.removeModel(UUID.fromString(uuid)));
  }

  @Operation(summary = "모델등록", description = "모델을 등록 합니다.")
  @ApiResponses(
      value = {
        @ApiResponse(
            responseCode = "201",
            description = "등록 성공",
            content =
                @Content(
                    mediaType = "application/json",
                    schema = @Schema(implementation = Long.class))),
        @ApiResponse(responseCode = "400", description = "잘못된 요청 데이터", content = @Content),
        @ApiResponse(responseCode = "404", description = "코드를 찾을 수 없음", content = @Content),
        @ApiResponse(responseCode = "500", description = "서버 오류", content = @Content)
      })
  @PostMapping
  public ApiResponseDto<ApiResponseDto.ResponseObj> ModelMgmt(
      @RequestBody @Valid ModelMngDto.AddReq addReq) {

    return ApiResponseDto.ok(modelMngService.insertModel(addReq));
  }

  @Operation(summary = "데이터셋 대용량 파일 분할 전송", description = "데이터셋 파일 대용량 파일을 청크 단위로 전송합니다.")
  @ApiResponses(
      value = {
        @ApiResponse(responseCode = "200", description = "청크 업로드 성공", content = @Content),
        @ApiResponse(responseCode = "400", description = "잘못된 요청 데이터", content = @Content),
        @ApiResponse(responseCode = "404", description = "업로드 세션을 찾을 수 없음", content = @Content),
        @ApiResponse(responseCode = "500", description = "서버 오류", content = @Content)
      })
  @PostMapping(value = "/file-chunk-upload", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
  public ApiResponseDto<ModelUploadResDto> fileChunkUpload(
      @RequestParam("uuid") UUID uuid,
      @RequestParam("fileName") String fileName,
      @RequestParam("fileSize") long fileSize,
      // @RequestParam("fileHash") String fileHash,
      @RequestParam("chunkIndex") Integer chunkIndex,
      @RequestParam("chunkTotalIndex") Integer chunkTotalIndex,
      @RequestPart("chunkFile") MultipartFile chunkFile) {

    String uploadDivi = "model";

    UploadDto.UploadAddReq upAddReqDto = new UploadDto.UploadAddReq();
    upAddReqDto.setDatasetId(0L);
    upAddReqDto.setUuid(uuid);
    upAddReqDto.setFileName(fileName);
    upAddReqDto.setFileSize(fileSize);
    upAddReqDto.setChunkIndex(chunkIndex);
    upAddReqDto.setChunkTotalIndex(chunkTotalIndex);
    upAddReqDto.setUploadDivi(uploadDivi);
    upAddReqDto.setFinalPath(modelDir);
    upAddReqDto.setTempPath(modelTmpDir);

    System.out.println("uuid === " + uuid);

    return ApiResponseDto.ok(modelMngService.uploadChunkModelFile(upAddReqDto, chunkFile));
  }
}