path: root/lib/basic-contract/template/create-revision-dialog.tsx

"use client";

import * as React from "react";
import { zodResolver } from "@hookform/resolvers/zod";
import { useForm } from "react-hook-form";
import * as z from "zod";
import { toast } from "sonner";
import { v4 as uuidv4 } from 'uuid';
import { Copy, FileText, Loader } from "lucide-react";
import { Dialog, DialogContent, DialogHeader, DialogTitle, DialogDescription, DialogFooter } from "@/components/ui/dialog";
import {
  Form,
  FormControl,
  FormField,
  FormItem,
  FormLabel,
  FormMessage,
  FormDescription,
} from "@/components/ui/form";
import { Input } from "@/components/ui/input";
import { Button } from "@/components/ui/button";
import { Checkbox } from "@/components/ui/checkbox";
import { Switch } from "@/components/ui/switch";
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select";
import {
  Dropzone,
  DropzoneZone,
  DropzoneUploadIcon,
  DropzoneTitle,
  DropzoneDescription,
  DropzoneInput
} from "@/components/ui/dropzone";
import { Progress } from "@/components/ui/progress";
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
import { Separator } from "@/components/ui/separator";
import { Badge } from "@/components/ui/badge";
import { useRouter } from "next/navigation";
import { BUSINESS_UNITS } from "@/config/basicContractColumnsConfig";
import { BasicContractTemplate } from "@/db/schema";

// 템플릿 이름 옵션 정의
const TEMPLATE_NAME_OPTIONS = [
  "준법서약 (한글)",
  "준법서약 (영문)",
  "기술자료 요구서", 
  "비밀유지 계약서",
  "표준하도급기본 계약서",
  "General GTC",
  "안전보건관리 약정서",
  "동반성장",
  "윤리규범 준수 서약서",
  "기술자료 동의서",
  "내국신용장 미개설 합의서",
  "직납자재 하도급대급등 연동제 의향서"
] as const;

// 리비전 생성 스키마 정의
const createRevisionSchema = z.object({
  revision: z.coerce.number().int().min(1),
  legalReviewRequired: z.boolean().default(false),
  
  // 적용 범위
  shipBuildingApplicable: z.boolean().default(false),
  windApplicable: z.boolean().default(false),
  pcApplicable: z.boolean().default(false),
  nbApplicable: z.boolean().default(false),
  rcApplicable: z.boolean().default(false),
  gyApplicable: z.boolean().default(false),
  sysApplicable: z.boolean().default(false),
  infraApplicable: z.boolean().default(false),
  
  file: z
    .instanceof(File, { message: "파일을 업로드해주세요." })
    .refine((file) => file.size <= 100 * 1024 * 1024, {
      message: "파일 크기는 100MB 이하여야 합니다.",
    })
    .refine(
      (file) => 
        file.type === 'application/msword' || 
        file.type === 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
      { message: "워드 파일(.doc, .docx)만 업로드 가능합니다." }
    ),
}).refine((data) => {
  // 적어도 하나의 적용 범위는 선택되어야 함
  const scopeFields = [
    'shipBuildingApplicable', 'windApplicable', 'pcApplicable', 'nbApplicable',
    'rcApplicable', 'gyApplicable', 'sysApplicable', 'infraApplicable'
  ];
  
  const hasAnyScope = scopeFields.some(field => data[field as keyof typeof data] === true);
  return hasAnyScope;
}, {
  message: "적어도 하나의 적용 범위를 선택해야 합니다.",
  path: ["shipBuildingApplicable"],
});

type CreateRevisionFormValues = z.infer<typeof createRevisionSchema>;

interface CreateRevisionDialogProps {
  open: boolean;
  onOpenChange: (open: boolean) => void;
  baseTemplate: BasicContractTemplate | null;
  onSuccess?: () => void;
}

export function CreateRevisionDialog({ 
  open, 
  onOpenChange, 
  baseTemplate, 
  onSuccess 
}: CreateRevisionDialogProps) {
  const [isLoading, setIsLoading] = React.useState(false);
  const [selectedFile, setSelectedFile] = React.useState<File | null>(null);
  const [uploadProgress, setUploadProgress] = React.useState(0);
  const [showProgress, setShowProgress] = React.useState(false);
  const [suggestedRevision, setSuggestedRevision] = React.useState<number>(1);
  const router = useRouter();

  // 기본 템플릿의 다음 리비전 번호 계산
  React.useEffect(() => {
    if (baseTemplate) {
      setSuggestedRevision(baseTemplate.revision + 1);
    }
  }, [baseTemplate]);

  // 기본값 설정 (기존 템플릿의 설정을 상속)
  const defaultValues: Partial<CreateRevisionFormValues> = React.useMemo(() => {
    if (!baseTemplate) return {};
    
    return {
      revision: suggestedRevision,
      legalReviewRequired: baseTemplate.legalReviewRequired,
      shipBuildingApplicable: baseTemplate.shipBuildingApplicable,
      windApplicable: baseTemplate.windApplicable,
      pcApplicable: baseTemplate.pcApplicable,
      nbApplicable: baseTemplate.nbApplicable,
      rcApplicable: baseTemplate.rcApplicable,
      gyApplicable: baseTemplate.gyApplicable,
      sysApplicable: baseTemplate.sysApplicable,
      infraApplicable: baseTemplate.infraApplicable,
    };
  }, [baseTemplate, suggestedRevision]);

  // 폼 초기화
  const form = useForm<CreateRevisionFormValues>({
    resolver: zodResolver(createRevisionSchema),
    defaultValues,
    mode: "onChange",
  });

  // baseTemplate이 변경될 때 폼 값 재설정
  React.useEffect(() => {
    if (baseTemplate && defaultValues) {
      form.reset(defaultValues);
    }
  }, [baseTemplate, defaultValues, form]);

  // 파일 선택 핸들러
  const handleFileChange = (files: File[]) => {
    if (files.length > 0) {
      const file = files[0];
      setSelectedFile(file);
      form.setValue("file", file);
    }
  };

  // 모든 적용 범위 선택/해제
  const handleSelectAllScopes = (checked: boolean) => {
    BUSINESS_UNITS.forEach(unit => {
      form.setValue(unit.key as keyof CreateRevisionFormValues, checked);
    });
  };

  // 이전 설정 복사
  const handleCopyPreviousSettings = () => {
    if (!baseTemplate) return;
    
    BUSINESS_UNITS.forEach(unit => {
      const value = baseTemplate[unit.key as keyof BasicContractTemplate] as boolean;
      form.setValue(unit.key as keyof CreateRevisionFormValues, value);
    });
    
    form.setValue("legalReviewRequired", baseTemplate.legalReviewRequired);
    toast.success("이전 설정이 복사되었습니다.");
  };

  // 청크 크기 설정 (1MB)
  const CHUNK_SIZE = 1 * 1024 * 1024;

  // 파일을 청크로 분할하여 업로드하는 함수
  const uploadFileInChunks = async (file: File, fileId: string) => {
    const totalChunks = Math.ceil(file.size / CHUNK_SIZE);
    setShowProgress(true);
    setUploadProgress(0);
    
    for (let chunkIndex = 0; chunkIndex < totalChunks; chunkIndex++) {
      const start = chunkIndex * CHUNK_SIZE;
      const end = Math.min(start + CHUNK_SIZE, file.size);
      const chunk = file.slice(start, end);
      
      const formData = new FormData();
      formData.append('chunk', chunk);
      formData.append('filename', file.name);
      formData.append('chunkIndex', chunkIndex.toString());
      formData.append('totalChunks', totalChunks.toString());
      formData.append('fileId', fileId);
      
      try {
        const response = await fetch('/api/upload/basicContract/chunk', {
          method: 'POST',
          body: formData,
        });
        
        if (!response.ok) {
          throw new Error(`청크 업로드 실패: ${response.statusText}`);
        }
        
        // 진행률 업데이트
        const progress = Math.round(((chunkIndex + 1) / totalChunks) * 100);
        setUploadProgress(progress);
        
        const result = await response.json();
        
        // 마지막 청크인 경우 파일 경로 반환
        if (chunkIndex === totalChunks - 1) {
          return result;
        }
      } catch (error) {
        console.error(`청크 ${chunkIndex} 업로드 오류:`, error);
        throw error;
      }
    }
  };

  // 폼 제출 핸들러
  async function onSubmit(formData: CreateRevisionFormValues) {
    if (!baseTemplate) return;
    
    setIsLoading(true);
    try {
      if (!formData.file) {
        throw new Error("파일이 선택되지 않았습니다.");
      }
      
      // 고유 파일 ID 생성
      const fileId = uuidv4();
      
      // 파일 청크 업로드
      const uploadResult = await uploadFileInChunks(formData.file, fileId);
      
      if (!uploadResult.success) {
        throw new Error("파일 업로드에 실패했습니다.");
      }
      
      // 새 리비전 생성 API 호출
      const createResponse = await fetch('/api/basicContract/create-revision', {
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
        },
        body: JSON.stringify({
          baseTemplateId: baseTemplate.id,
          templateName: baseTemplate.templateName,
          revision: formData.revision,
          legalReviewRequired: formData.legalReviewRequired,
          shipBuildingApplicable: formData.shipBuildingApplicable,
          windApplicable: formData.windApplicable,
          pcApplicable: formData.pcApplicable,
          nbApplicable: formData.nbApplicable,
          rcApplicable: formData.rcApplicable,
          gyApplicable: formData.gyApplicable,
          sysApplicable: formData.sysApplicable,
          infraApplicable: formData.infraApplicable,
          fileName: uploadResult.fileName,
          filePath: uploadResult.filePath,
        }),
        next: { tags: ["basic-contract-templates"] },
      });
      
      const createResult = await createResponse.json();
      
      if (!createResult.success) {
        throw new Error(createResult.error || "리비전 생성에 실패했습니다.");
      }
      
      toast.success(`${baseTemplate.templateName} v${formData.revision} 리비전이 성공적으로 생성되었습니다.`);
      form.reset();
      setSelectedFile(null);
      onOpenChange(false);
      setShowProgress(false);
      onSuccess?.();
      router.refresh();
    } catch (error) {
      console.error("Submit error:", error);
      toast.error("리비전 생성 중 오류가 발생했습니다.");
    } finally {
      setIsLoading(false);
    }
  }

  // 모달이 닫힐 때 폼 초기화
  React.useEffect(() => {
    if (!open) {
      form.reset();
      setSelectedFile(null);
      setShowProgress(false);
      setUploadProgress(0);
    }
  }, [open, form]);

  // 현재 선택된 적용 범위 수
  const selectedScopesCount = BUSINESS_UNITS.filter(unit => 
    form.watch(unit.key as keyof CreateRevisionFormValues)
  ).length;

  if (!baseTemplate) return null;

  return (
    <Dialog open={open} onOpenChange={onOpenChange}>
      <DialogContent className="sm:max-w-[600px] h-[90vh] flex flex-col p-0">
        {/* 고정된 헤더 */}
        <DialogHeader className="p-6 pb-4 border-b">
          <DialogTitle className="flex items-center gap-2">
            <Copy className="h-5 w-5" />
            새 리비전 생성
          </DialogTitle>
          <DialogDescription>
            <div className="space-y-2">
              <div className="flex items-center gap-2">
                <FileText className="h-4 w-4" />
                <span className="font-medium">{baseTemplate.templateName}</span>
                <Badge variant="outline">현재 v{baseTemplate.revision}</Badge>
                <span>→</span>
                <Badge variant="default">새 v{form.watch("revision")}</Badge>
              </div>
              <p className="text-sm">
                기존 템플릿을 기반으로 새로운 리비전을 생성합니다.
                <span className="text-red-500 mt-1 block">* 표시된 항목은 필수 입력사항입니다.</span>
              </p>
            </div>
          </DialogDescription>
        </DialogHeader>

        {/* 스크롤 가능한 컨텐츠 영역 */}
        <div className="flex-1 overflow-y-auto px-6">
          <Form {...form}>
            <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-6 py-4">
              {/* 리비전 정보 */}
              <Card>
                <CardHeader>
                  <CardTitle className="text-lg">리비전 정보</CardTitle>
                  <CardDescription>
                    새로 생성할 리비전의 번호를 설정하세요
                  </CardDescription>
                </CardHeader>
                <CardContent className="space-y-4">
                  <FormField
                    control={form.control}
                    name="revision"
                    render={({ field }) => (
                      <FormItem>
                        <FormLabel>
                          리비전 번호 <span className="text-red-500">*</span>
                        </FormLabel>
                        <FormControl>
                          <Input 
                            type="number" 
                            min={baseTemplate.revision + 1}
                            {...field}
                            onChange={(e) => field.onChange(parseInt(e.target.value) || suggestedRevision)}
                          />
                        </FormControl>
                        <FormDescription>
                          권장 리비전: {suggestedRevision} (현재 리비전보다 큰 숫자여야 합니다)
                        </FormDescription>
                        <FormMessage />
                      </FormItem>
                    )}
                  />

                  <FormField
                    control={form.control}
                    name="legalReviewRequired"
                    render={({ field }) => (
                      <FormItem className="flex flex-row items-center justify-between rounded-lg border p-3 shadow-sm">
                        <div className="space-y-0.5">
                          <FormLabel>법무검토 필요</FormLabel>
                          <FormDescription>
                            법무팀 검토가 필요한 템플릿인지 설정
                          </FormDescription>
                        </div>
                        <FormControl>
                          <Switch
                            checked={field.value}
                            onCheckedChange={field.onChange}
                          />
                        </FormControl>
                      </FormItem>
                    )}
                  />
                </CardContent>
              </Card>

              {/* 적용 범위 */}
              <Card>
                <CardHeader>
                  <CardTitle className="text-lg">
                    적용 범위 <span className="text-red-500">*</span>
                  </CardTitle>
                  <CardDescription>
                    이 리비전이 적용될 사업부를 선택하세요. ({selectedScopesCount}개 선택됨)
                  </CardDescription>
                </CardHeader>
                <CardContent className="space-y-4">
                  <div className="flex items-center justify-between">
                    <div className="flex items-center space-x-2">
                      <Checkbox 
                        id="select-all"
                        checked={selectedScopesCount === BUSINESS_UNITS.length}
                        onCheckedChange={handleSelectAllScopes}
                      />
                      <label htmlFor="select-all" className="text-sm font-medium">
                        전체 선택
                      </label>
                    </div>
                    <Button
                      type="button"
                      variant="outline"
                      size="sm"
                      onClick={handleCopyPreviousSettings}
                    >
                      <Copy className="h-4 w-4 mr-1" />
                      이전 설정 복사
                    </Button>
                  </div>
                  
                  <Separator />
                  
                  <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
                    {BUSINESS_UNITS.map((unit) => (
                      <FormField
                        key={unit.key}
                        control={form.control}
                        name={unit.key as keyof CreateRevisionFormValues}
                        render={({ field }) => (
                          <FormItem className="flex flex-row items-start space-x-3 space-y-0">
                            <FormControl>
                              <Checkbox
                                checked={field.value as boolean}
                                onCheckedChange={field.onChange}
                              />
                            </FormControl>
                            <div className="space-y-1 leading-none">
                              <FormLabel className="text-sm font-normal">
                                {unit.label}
                              </FormLabel>
                            </div>
                          </FormItem>
                        )}
                      />
                    ))}
                  </div>
                  
                  {form.formState.errors.shipBuildingApplicable && (
                    <p className="text-sm text-destructive">
                      {form.formState.errors.shipBuildingApplicable.message}
                    </p>
                  )}
                </CardContent>
              </Card>

              {/* 파일 업로드 */}
              <Card>
                <CardHeader>
                  <CardTitle className="text-lg">파일 업로드</CardTitle>
                  <CardDescription>
                    새 리비전의 템플릿 파일을 업로드하세요
                  </CardDescription>
                </CardHeader>
                <CardContent>
                  <FormField
                    control={form.control}
                    name="file"
                    render={() => (
                      <FormItem>
                        <FormLabel>
                          템플릿 파일 <span className="text-red-500">*</span>
                        </FormLabel>
                        <FormControl>
                          <Dropzone
                            onDrop={handleFileChange}
                            accept={{
                              'application/msword': ['.doc'],
                              'application/vnd.openxmlformats-officedocument.wordprocessingml.document': ['.docx']
                            }}
                          >
                            <DropzoneZone>
                              <DropzoneUploadIcon className="h-10 w-10 text-muted-foreground" />
                              <DropzoneTitle>
                                {selectedFile ? selectedFile.name : "워드 파일을 여기에 드래그하세요"}
                              </DropzoneTitle>
                              <DropzoneDescription>
                                {selectedFile
                                  ? `파일 크기: ${(selectedFile.size / (1024 * 1024)).toFixed(2)} MB`
                                  : "또는 클릭하여 워드 파일(.doc, .docx)을 선택하세요 (최대 100MB)"}
                              </DropzoneDescription>
                              <DropzoneInput />
                            </DropzoneZone>
                          </Dropzone>
                        </FormControl>
                        <FormMessage />
                      </FormItem>
                    )}
                  />
                  
                  {showProgress && (
                    <div className="space-y-2 mt-4">
                      <div className="flex justify-between text-sm">
                        <span>업로드 진행률</span>
                        <span>{uploadProgress}%</span>
                      </div>
                      <Progress value={uploadProgress} />
                    </div>
                  )}
                </CardContent>
              </Card>
            </form>
          </Form>
        </div>

        {/* 고정된 푸터 */}
        <DialogFooter className="p-6 pt-4 border-t">
          <Button
            type="button"
            variant="outline"
            onClick={() => onOpenChange(false)}
            disabled={isLoading}
          >
            취소
          </Button>
          <Button
            type="button"
            onClick={form.handleSubmit(onSubmit)}
            disabled={
              isLoading || 
              !form.watch("file") ||
              !BUSINESS_UNITS.some(unit => form.watch(unit.key as keyof CreateRevisionFormValues)) ||
              form.watch("revision") <= baseTemplate.revision
            }
          >
            {isLoading && <Loader className="mr-2 h-4 w-4 animate-spin" />}
            {isLoading ? "처리 중..." : "리비전 생성"}
          </Button>
        </DialogFooter>
      </DialogContent>
    </Dialog>
  );
}