import {
  Body,
  Controller,
  HttpStatus,
  Post,
  Req,
  HttpException,
  Logger,
} from "@nestjs/common";
import fs from "fs";
import { ApiOperation, ApiResponse, ApiTags } from "@nestjs/swagger";
import { Request } from "express";
import { transferRequest, transferResponse } from "./types/types";
import { TransferService } from "./transfer.service";
import { makeContext } from "../../common/log";
import { csvInputFile } from "../../common/types/types";
import { makeErrorResponse } from "src/common/errors/makeErrorResponse";
import {
  COUNTRY_LIST,
  MIGRATION_TYPE,
  TIERS,
  WORKTYPE_MAX_COUNT,
  RECORDING_MODE,
  LICENSE_ALLOCATED_STATUS,
  USER_ROLES,
  AUTO_INCREMENT_START,
} from "../../constants";
@ApiTags("transfer")
@Controller("transfer")
export class TransferController {
  private readonly logger = new Logger(TransferController.name);
  constructor(private readonly transferService: TransferService) {}

  @Post()
  @ApiResponse({
    status: HttpStatus.OK,
    type: transferResponse,
    description: "成功時のレスポンス",
  })
  @ApiResponse({
    status: HttpStatus.INTERNAL_SERVER_ERROR,
    description: "想定外のサーバーエラー",
  })
  @ApiOperation({ operationId: "dataRegist" })
  async dataRegist(
    @Body() body: transferRequest,
    @Req() req: Request
  ): Promise<transferResponse> {
    const context = makeContext("iko", "transfer");

    const inputFilePath = body.inputFilePath;

    this.logger.log(
      `[IN] [${context.getTrackingId()}] ${
        this.dataRegist.name
      } | params: { inputFilePath: ${inputFilePath}};`
    );
    try {
      // 読み込みファイルのフルパス
      const csvFileFullPath = inputFilePath + ".csv";

      // ファイル存在チェックと読み込み
      if (!fs.existsSync(csvFileFullPath)) {
        this.logger.error(`file not exists from ${inputFilePath}`);
        throw new Error(`file not exists from ${inputFilePath}`);
      }

      // CSVファイルを全行読み込む
      const inputFile = fs.readFileSync(csvFileFullPath, "utf-8");

      // レコードごとに分割
      const csvInputFileLines = inputFile.split("\n");

      // ヘッダー行を削除
      csvInputFileLines.shift();

      // 項目ごとに切り分ける
      let csvInputFile: csvInputFile[] = [];
      csvInputFileLines.forEach((line) => {
        const data = line.split(",");
        // ダブルクォーテーションは削除
        data.forEach((value, index) => {
          data[index] = value.replace(/"/g, "");
        });
        csvInputFile.push({
          type: data[0],
          account_id: data[1],
          parent_id: data[2],
          email: data[3],
          company_name: data[4],
          first_name: data[5],
          last_name: data[6],
          country: data[7],
          state: data[8],
          start_date: new Date(data[9]),
          expired_date: new Date(data[10]),
          user_email: data[11],
          author_id: data[12],
          recording_mode: data[13],
          wt1: data[14],
          wt2: data[15],
          wt3: data[16],
          wt4: data[17],
          wt5: data[18],
          wt6: data[19],
          wt7: data[20],
          wt8: data[21],
          wt9: data[22],
          wt10: data[23],
          wt11: data[24],
          wt12: data[25],
          wt13: data[26],
          wt14: data[27],
          wt15: data[28],
          wt16: data[29],
          wt17: data[30],
          wt18: data[31],
          wt19: data[32],
          wt20: data[33],
        });
      });

      // 各データのバリデーションチェック
      await this.transferService.validateInputData(context, csvInputFile);

      // account_idを通番に変換し、変換前account_id: 変換後accountId配列を作成する。
      const accountIdList = csvInputFile.map((line) => line.account_id);
      const accountIdListSet = new Set(accountIdList);
      const accountIdListArray = Array.from(accountIdListSet);
      const accountIdMap = new Map<string, number>();
      accountIdListArray.forEach((accountId, index) => {
        accountIdMap.set(accountId, index + AUTO_INCREMENT_START);
      });
      // CSVファイルの変換
      const transferResponse = await this.transferService.registInputData(
        context,
        csvInputFile,
        accountIdMap
      );

      // countryを除いた階層の再配置
      const accountsOutputFileStep1Lines =
        transferResponse.accountsOutputFileStep1Lines;
      const accountsOutputFile = await this.transferService.relocateHierarchy(
        context,
        accountsOutputFileStep1Lines
      );
      // メールアドレスの重複を削除
      // デモライセンスの削除
      // いったんこのままコミットしてテストを実施する

      // transferResponseを４つのJSONファイルの出力する(出力先はinputと同じにする)
      const outputFilePath = body.inputFilePath;
      const usersOutputFile = transferResponse.usersOutputFileLines;
      const licensesOutputFile = transferResponse.licensesOutputFileLines;
      const worktypesOutputFile = transferResponse.worktypesOutputFileLines;
      this.transferService.outputJsonFile(
        context,
        outputFilePath,
        accountsOutputFile,
        usersOutputFile,
        licensesOutputFile,
        worktypesOutputFile
      );
      return {};
    } catch (e) {
      this.logger.error(`[${context.getTrackingId()}] error=${e}`);
      throw new HttpException(
        makeErrorResponse("E009999"),
        HttpStatus.INTERNAL_SERVER_ERROR
      );
    } finally {
      this.logger.log(
        `[OUT] [${context.getTrackingId()}] ${this.dataRegist.name}`
      );
    }
  }
}