"use server"

import { getKnoxConfig, createJsonHeaders, createFormHeaders } from '../common';

// Knox API Approval 서버 액션들
// 가이드: lib/knox-api/approval/guide.html

// ========== 타입 정의 ==========

// 공통 응답 타입
export interface BaseResponse {
  result: string;
}

// 결재 경로 타입
export interface ApprovalLine {
  epId?: string;
  userId?: string;
  emailAddress?: string;
  seq: string;
  role: string; // 기안(0), 결재(1), 합의(2), 후결(3), 병렬합의(4), 병렬결재(7), 통보(9)
  aplnStatsCode: string; // 미결(0), 결재(1), 반려(2), 전결(3), 자동결재(5)
  arbPmtYn: string; // 전결권한여부
  contentsMdfyPmtYn: string; // 본문수정권한여부
  aplnMdfyPmtYn: string; // 경로변경권한여부
  opinion?: string; // 상신의견 (상신자만)
}

// 결재 상신 요청 타입
export interface SubmitApprovalRequest {
  contents: string; // 결재본문
  contentsType: string; // 본문종류 (TEXT, HTML, MIME)
  docSecuType: string; // 보안문서타입 (PERSONAL, CONFIDENTIAL, CONFIDENTIAL_STRICT)
  notifyOption: string; // 통보옵션 (0-3)
  urgYn: string; // 긴급여부 (Y/N)
  sbmDt: string; // 상신일시 (YYYYMMDDHHMMSS)
  timeZone: string; // 타임존 (GMT, GMT+9 등)
  docMngSaveCode: string; // 문서관리저장코드 (0: 안함, 1: 저장)
  subject: string; // 결재제목
  sbmLang: string; // 상신언어 (ko, ja, zh, en)
  apInfId: string; // 연계ID (32자리 고유값)
  importantYn?: string; // 중요여부 (Y/N)
  aplns: ApprovalLine[]; // 결재경로
  attachments?: File[]; // 첨부파일
}

// 결재 상신 응답 타입
export interface SubmitApprovalResponse extends BaseResponse {
  data: {
    apInfId: string;
  };
}

// 결재 상세 조회 응답 타입
export interface ApprovalDetailResponse extends BaseResponse {
  data: {
    contentsType: string;
    sbmDt: string;
    sbmLang: string;
    apInfId: string;
    systemId: string;
    notifyOption: string;
    urgYn: string;
    docSecuType: string;
    status: string; // 암호화실패(-3), 암호화중(-2), 예약상신(-1), 보류(0), 진행중(1), 완결(2), 반려(3), 상신취소(4), 전결(5), 후완결(6)
    timeZone: string;
    subject: string;
    aplns: ApprovalLine[];
    attachments?: File[];
  };
}

// 결재 본문 조회 응답 타입
export interface ApprovalContentResponse extends BaseResponse {
  data: {
    contents: string;
    contentsType: string;
    apInfId: string;
  };
}

// 결재 상황 조회 요청 타입
export interface ApprovalStatusRequest {
  apinfids: { apinfid: string }[];
}

// 결재 상황 조회 응답 타입
export interface ApprovalStatusResponse extends BaseResponse {
  data: {
    apInfId: string;
    docChgNum: string;
    status: string;
  }[];
}

// 상신 취소 응답 타입
export interface CancelApprovalResponse extends BaseResponse {
  data: {
    apInfId: string;
  };
}

// 개인 결재경로 목록 조회 응답 타입
export interface OwnApprovalLineListResponse extends BaseResponse {
  data: ApprovalLine[];
}

// 개인 결재경로 상세 조회 응답 타입
export interface OwnApprovalLineDetailResponse extends BaseResponse {
  data: ApprovalLine;
}

// 상신함 리스트 조회 응답 타입
export interface SubmissionListResponse extends BaseResponse {
  data: SubmitApprovalRequest[];
}

// 연계 이력 조회 응답 타입
export interface ApprovalHistoryResponse extends BaseResponse {
  data: SubmitApprovalRequest[];
}

// 연계 ID 조회 응답 타입
export interface ApprovalIdsResponse extends BaseResponse {
  data: string[];
}

// ========== 서버 액션 함수들 ==========

/**
 * 결재 상신
 * POST /approval/api/v2.0/approvals/submit
 */
export async function submitApproval(
  request: SubmitApprovalRequest
): Promise<SubmitApprovalResponse> {
  try {
    const config = await getKnoxConfig();
    const formData = new FormData();
    
    // JSON 데이터 생성
    const approvalData = {
      contents: request.contents,
      contentsType: request.contentsType,
      docSecuType: request.docSecuType,
      notifyOption: request.notifyOption,
      urgYn: request.urgYn,
      sbmDt: request.sbmDt,
      timeZone: request.timeZone,
      docMngSaveCode: request.docMngSaveCode,
      subject: request.subject,
      sbmLang: request.sbmLang,
      apInfId: request.apInfId,
      importantYn: request.importantYn,
      aplns: request.aplns
    };
    
    formData.append('approval', JSON.stringify(approvalData));
    
    // 첨부파일 처리
    if (request.attachments) {
      request.attachments.forEach((file) => {
        formData.append('attachments', file);
      });
    }
    
    const response = await fetch(`${config.baseUrl}/approval/api/v2.0/approvals/submit`, {
      method: 'POST',
      headers: await createFormHeaders(),
      body: formData,
    });
    
    if (!response.ok) {
      throw new Error(`결재 상신 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('결재 상신 오류:', error);
    throw error;
  }
}

/**
 * 보안 결재 상신
 * POST /approval/api/v2.0/approvals/secu-submit
 */
export async function submitSecurityApproval(
  request: SubmitApprovalRequest
): Promise<SubmitApprovalResponse> {
  try {
    const config = await getKnoxConfig();
    const formData = new FormData();
    
    // JSON 데이터 생성
    const approvalData = {
      contents: request.contents,
      contentsType: request.contentsType,
      docSecuType: request.docSecuType, // CONFIDENTIAL 또는 CONFIDENTIAL_STRICT
      notifyOption: request.notifyOption,
      urgYn: request.urgYn,
      sbmDt: request.sbmDt,
      timeZone: request.timeZone,
      docMngSaveCode: request.docMngSaveCode,
      subject: request.subject,
      sbmLang: request.sbmLang,
      apInfId: request.apInfId,
      importantYn: request.importantYn,
      aplns: request.aplns
    };
    
    formData.append('approval', JSON.stringify(approvalData));
    
    // 첨부파일 처리
    if (request.attachments) {
      request.attachments.forEach((file) => {
        formData.append('attachments', file);
      });
    }
    
    const response = await fetch(`${config.baseUrl}/approval/api/v2.0/approvals/secu-submit`, {
      method: 'POST',
      headers: await createFormHeaders(),
      body: formData,
    });
    
    if (!response.ok) {
      throw new Error(`보안 결재 상신 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('보안 결재 상신 오류:', error);
    throw error;
  }
}

/**
 * 결재 상세 상황 조회
 * GET /approval/api/v2.0/approvals/{apInfId}/detail
 */
export async function getApprovalDetail(
  apInfId: string
): Promise<ApprovalDetailResponse> {
  try {
    const config = await getKnoxConfig();
    const response = await fetch(`${config.baseUrl}/approval/api/v2.0/approvals/${apInfId}/detail`, {
      method: 'GET',
      headers: await createJsonHeaders(),
    });
    
    if (!response.ok) {
      throw new Error(`결재 상세 조회 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('결재 상세 조회 오류:', error);
    throw error;
  }
}

/**
 * 결재 본문 조회
 * GET /approval/api/v2.0/approvals/{apInfId}/content
 */
export async function getApprovalContent(
  apInfId: string
): Promise<ApprovalContentResponse> {
  try {
    const config = await getKnoxConfig();
    const response = await fetch(`${config.baseUrl}/approval/api/v2.0/approvals/${apInfId}/content`, {
      method: 'GET',
      headers: await createJsonHeaders(),
    });
    
    if (!response.ok) {
      throw new Error(`결재 본문 조회 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('결재 본문 조회 오류:', error);
    throw error;
  }
}

/**
 * 결재 상황 조회
 * POST /approval/api/v2.0/approvals/status
 */
export async function getApprovalStatus(
  request: ApprovalStatusRequest
): Promise<ApprovalStatusResponse> {
  try {
    const config = await getKnoxConfig();
    const response = await fetch(`${config.baseUrl}/approval/api/v2.0/approvals/status`, {
      method: 'POST',
      headers: await createJsonHeaders(),
      body: JSON.stringify(request.apinfids),
    });
    
    if (!response.ok) {
      throw new Error(`결재 상황 조회 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('결재 상황 조회 오류:', error);
    throw error;
  }
}

/**
 * 결재 연계 ID 조회
 * GET /approval/api/v2.0/approvals/apinfids
 */
export async function getApprovalIds(
  apIds?: string[]
): Promise<ApprovalIdsResponse> {
  try {
    const config = await getKnoxConfig();
    let url = `${config.baseUrl}/approval/api/v2.0/approvals/apinfids`;
    
    if (apIds && apIds.length > 0) {
      const params = new URLSearchParams();
      apIds.forEach(id => params.append('apId', id));
      url += `?${params.toString()}`;
    }
    
    const response = await fetch(url, {
      method: 'GET',
      headers: await createJsonHeaders(),
    });
    
    if (!response.ok) {
      throw new Error(`결재 연계 ID 조회 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('결재 연계 ID 조회 오류:', error);
    throw error;
  }
}

/**
 * 상신함 리스트 조회
 * GET /approval/api/v2.0/approvals/submission
 */
export async function getSubmissionList(
  params?: Record<string, string>
): Promise<SubmissionListResponse> {
  try {
    const config = await getKnoxConfig();
    let url = `${config.baseUrl}/approval/api/v2.0/approvals/submission`;
    
    if (params) {
      const searchParams = new URLSearchParams(params);
      url += `?${searchParams.toString()}`;
    }
    
    const response = await fetch(url, {
      method: 'GET',
      headers: await createJsonHeaders(),
    });
    
    if (!response.ok) {
      throw new Error(`상신함 리스트 조회 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('상신함 리스트 조회 오류:', error);
    throw error;
  }
}

/**
 * 연계 이력 조회
 * GET /approval/api/v2.0/approvals/apinfidinfos
 */
export async function getApprovalHistory(
  params?: Record<string, string>
): Promise<ApprovalHistoryResponse> {
  try {
    const config = await getKnoxConfig();
    let url = `${config.baseUrl}/approval/api/v2.0/approvals/apinfidinfos`;
    
    if (params) {
      const searchParams = new URLSearchParams(params);
      url += `?${searchParams.toString()}`;
    }
    
    const response = await fetch(url, {
      method: 'GET',
      headers: await createJsonHeaders(),
    });
    
    if (!response.ok) {
      throw new Error(`연계 이력 조회 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('연계 이력 조회 오류:', error);
    throw error;
  }
}

/**
 * 상신 취소
 * POST /approval/api/v2.0/approvals/{apInfId}/cancel
 */
export async function cancelApproval(
  apInfId: string
): Promise<CancelApprovalResponse> {
  try {
    const config = await getKnoxConfig();
    const response = await fetch(`${config.baseUrl}/approval/api/v2.0/approvals/${apInfId}/cancel`, {
      method: 'POST',
      headers: await createJsonHeaders(),
    });
    
    if (!response.ok) {
      throw new Error(`상신 취소 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('상신 취소 오류:', error);
    throw error;
  }
}

/**
 * 저장된 결재경로 목록 조회
 * GET /approval/api/v2.0/approvals/ownaplnlist
 */
export async function getOwnApprovalLineList(
  params?: Record<string, string>
): Promise<OwnApprovalLineListResponse> {
  try {
    const config = await getKnoxConfig();
    let url = `${config.baseUrl}/approval/api/v2.0/approvals/ownaplnlist`;
    
    if (params) {
      const searchParams = new URLSearchParams(params);
      url += `?${searchParams.toString()}`;
    }
    
    const response = await fetch(url, {
      method: 'GET',
      headers: await createJsonHeaders(),
    });
    
    if (!response.ok) {
      throw new Error(`저장된 결재경로 목록 조회 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('저장된 결재경로 목록 조회 오류:', error);
    throw error;
  }
}

/**
 * 저장된 결재경로 상세 조회
 * GET /approval/api/v2.0/approvals/{pslAplnId}/ownaplndetail
 */
export async function getOwnApprovalLineDetail(
  pslAplnId: string
): Promise<OwnApprovalLineDetailResponse> {
  try {
    const config = await getKnoxConfig();
    const response = await fetch(`${config.baseUrl}/approval/api/v2.0/approvals/${pslAplnId}/ownaplndetail`, {
      method: 'GET',
      headers: await createJsonHeaders(),
    });
    
    if (!response.ok) {
      throw new Error(`저장된 결재경로 상세 조회 실패: ${response.status}`);
    }
    
    return await response.json();
  } catch (error) {
    console.error('저장된 결재경로 상세 조회 오류:', error);
    throw error;
  }
}

// ========== 유틸리티 함수들 ==========

/**
 * 결재 상신 요청 데이터 생성 도우미
 */
export async function createSubmitApprovalRequest(
  contents: string,
  subject: string,
  approvalLines: ApprovalLine[],
  options: Partial<SubmitApprovalRequest> = {}
): Promise<SubmitApprovalRequest> {
  const config = await getKnoxConfig();
  const now = new Date();
  const sbmDt = now.toISOString().replace(/[-:T]/g, '').slice(0, 14);
  const apInfId = `${config.systemId}${sbmDt}${Math.random().toString(36).substr(2, 9)}`.padEnd(32, '0');
  
  return {
    contents,
    subject,
    aplns: approvalLines,
    contentsType: 'TEXT',
    docSecuType: 'PERSONAL',
    notifyOption: '0',
    urgYn: 'N',
    sbmDt,
    timeZone: 'GMT+9',
    docMngSaveCode: '0',
    sbmLang: 'ko',
    apInfId,
    importantYn: 'N',
    ...options
  };
}

/**
 * 결재 라인 생성 도우미
 */
export async function createApprovalLine(
  userInfo: { epId?: string; userId?: string; emailAddress?: string },
  role: string,
  seq: string,
  options: Partial<ApprovalLine> = {}
): Promise<ApprovalLine> {
  return {
    ...userInfo,
    seq,
    role,
    aplnStatsCode: '0',
    arbPmtYn: 'Y',
    contentsMdfyPmtYn: 'Y',
    aplnMdfyPmtYn: 'Y',
    ...options
  };
}

/**
 * 결재 상태 문자열 변환
 */
export async function getApprovalStatusText(status: string): Promise<string> {
  const statusMap: Record<string, string> = {
    '-3': '암호화실패',
    '-2': '암호화중',
    '-1': '예약상신',
    '0': '보류',
    '1': '진행중',
    '2': '완결',
    '3': '반려',
    '4': '상신취소',
    '5': '전결',
    '6': '후완결'
  };
  
  return statusMap[status] || '알 수 없음';
}

/**
 * 결재 역할 문자열 변환
 */
export async function getApprovalRoleText(role: string): Promise<string> {
  const roleMap: Record<string, string> = {
    '0': '기안',
    '1': '결재',
    '2': '합의',
    '3': '후결',
    '4': '병렬합의',
    '7': '병렬결재',
    '9': '통보'
  };
  
  return roleMap[role] || '알 수 없음';
}