import { apiClient } from "./client";

// Content-Disposition 의 filename / filename* 파싱 (UTF-8 인코딩 우선)
function extractFileName(cd: string | undefined): string | null {
  if (!cd) return null;
  const utf8 = /filename\*=UTF-8''([^;]+)/i.exec(cd);
  if (utf8 && utf8[1]) {
    try { return decodeURIComponent(utf8[1]); } catch { /* fallthrough */ }
  }
  const plain = /filename="?([^";]+)"?/i.exec(cd);
  if (plain && plain[1]) {
    try { return decodeURIComponent(plain[1]); } catch { return plain[1]; }
  }
  return null;
}

// ============================================================
// 개발관리 E-BOM (M3 등록 / M4 조회) — wace partMng.xml 1:1
// 라우트: /api/development/ebom/*, /api/development/ebom-tree/*
// ============================================================

export interface BomReportListFilter {
  customer_cd?: string;
  project_name?: string;
  unit_code?: string;
  search_unit_name?: string;
  search_writer?: string;
  product_cd?: string;
  search_part_no?: string;
  search_part_name?: string;
  search_from_date?: string;
  search_to_date?: string;
  status?: string;
  page?: number;
  page_size?: number;
}

export interface BomReportRow {
  num: number | string;
  objid: string;
  customer_objid: string | null;
  customer_name: string | null;
  contract_objid: string | null;
  customer_project_name: string | null;
  project_no: string | null;
  unit_code: string | null;
  unit_name: string | null;
  status: string | null;
  status_title: string | null;
  writer: string | null;
  dept_name: string | null;
  user_name: string | null;
  dept_user_name: string | null;
  regdate: string | null;
  reg_date: string | null;
  deploy_date: string | null;
  revision: string | null;
  eo_no: string | null;
  eo_date: string | null;
  note: string | null;
  multi_yn: string | null;
  multi_master_yn: string | null;
  multi_break_yn: string | null;
  multi_master_objid: string | null;
  bom_cnt: number | string | null;
  product_cd: string | null;
  product_name: string | null;
  part_no: string | null;
  part_name: string | null;
}

export interface BomReportListResponse {
  rows: BomReportRow[];
  total: number;
  page: number;
  pageSize: number;
}

export interface BomReportStatusBody {
  product_cd?: string;
  part_no?: string;
  part_name?: string;
  version?: string;
  status: string;
}

export interface BomTreeFilter {
  bom_report_objid?: string;
  project_name?: string;
  unit_code?: string;
  search_part_no?: string;
  search_part_name?: string;
  search_level?: string | number;  // wace 1:1 — 1~5 표시 레벨
}

export interface BomTreeRow {
  bom_report_objid: string | null;
  objid: string;
  parent_objid: string | null;
  child_objid: string | null;
  part_no: string | null;             // bom_part_qty.part_no (= part_mng.objid)
  qty: string | null;
  seq: number | string | null;
  status: string | null;
  lev: number;
  path: string[] | null;
  // part_mng JOIN
  pm_part_no: string | null;
  pm_part_name: string | null;
  spec: string | null;
  material: string | null;
  weight: string | null;
  remark: string | null;
  edit_date: string | null;
  eo_no: string | null;
  revision: string | null;
  cu01_cnt: number | string | null;
  cu02_cnt: number | string | null;
  cu03_cnt: number | string | null;
  max_level: number | string | null;
}

export interface BomTreeResponse {
  rows: BomTreeRow[];
  max_level: number;
}

// 트리 풀 컬럼 (ascendingForExcel 1:1) — BomReportTreeDialog 용
export interface BomTreeFullRow {
  lev: number | string;
  pm_part_no: string | null;
  pm_part_name: string | null;
  qty: string | number | null;
  p_qty: string | number | null;
  material: string | null;
  remark: string | null;
  heat_treatment_hardness: string | null;
  heat_treatment_method: string | null;
  surface_treatment: string | null;
  maker: string | null;
  part_type: string | null;
  part_type_title: string | null;
  cu01_cnt: number | string | null;
  cu02_cnt: number | string | null;
  cu03_cnt: number | string | null;
}
export interface BomTreeFullResponse {
  rows: BomTreeFullRow[];
  max_level: number;
}

// ─── API ─────────────────────────────────────────────────

export const devBomApi = {
  // M3 그리드
  async list(filter: BomReportListFilter = {}): Promise<BomReportListResponse> {
    const res = await apiClient.get("/development/ebom/list", { params: filter });
    return res.data?.data as BomReportListResponse;
  },

  async detail(objid: string): Promise<BomReportRow | null> {
    const res = await apiClient.get(`/development/ebom/${objid}`);
    return res.data?.data ?? null;
  },

  async updateStatus(objid: string, body: BomReportStatusBody) {
    return (await apiClient.put(`/development/ebom/${objid}/status`, body)).data;
  },

  async remove(objids: string[]) {
    const res = await apiClient.delete("/development/ebom", { data: { objids } });
    return res.data;
  },

  // M4
  async ascending(filter: BomTreeFilter): Promise<BomTreeResponse> {
    const res = await apiClient.get("/development/ebom-tree/ascending", { params: filter });
    return res.data?.data as BomTreeResponse;
  },

  async descending(filter: BomTreeFilter): Promise<BomTreeResponse> {
    const res = await apiClient.get("/development/ebom-tree/descending", { params: filter });
    return res.data?.data as BomTreeResponse;
  },

  // E-BOM 트리 (풀 컬럼) — M3 그리드 행 클릭 → BomReportTreeDialog
  async treeFull(filter: BomTreeFilter): Promise<BomTreeFullResponse> {
    const res = await apiClient.get("/development/ebom-tree/full", { params: filter });
    return res.data?.data as BomTreeFullResponse;
  },

  // M4 엑셀 다운로드 (정/역전개) — wace 1:1
  async excelAscending(filter: BomTreeFilter): Promise<{ blob: Blob; fileName: string }> {
    const res = await apiClient.get("/development/ebom-tree/ascending/excel", {
      params: filter, responseType: "blob",
    });
    return { blob: res.data as Blob, fileName: extractFileName(res.headers?.["content-disposition"]) ?? "BOM_ascending.xlsx" };
  },
  async excelDescending(filter: BomTreeFilter): Promise<{ blob: Blob; fileName: string }> {
    const res = await apiClient.get("/development/ebom-tree/descending/excel", {
      params: filter, responseType: "blob",
    });
    return { blob: res.data as Blob, fileName: extractFileName(res.headers?.["content-disposition"]) ?? "BOM_descending.xlsx" };
  },

  // Excel Import
  async excelParse(file: File): Promise<BomExcelParseResponse> {
    const fd = new FormData();
    fd.append("file", file);
    const res = await apiClient.post("/development/ebom/excel-parse", fd, {
      headers: { "Content-Type": "multipart/form-data" },
    });
    return res.data?.data as BomExcelParseResponse;
  },

  async excelCheckDuplicate(partNo: string, exclude?: string): Promise<boolean> {
    const res = await apiClient.get("/development/ebom/excel-check-duplicate", {
      params: { partNo, exclude },
    });
    return !!res.data?.data?.isDuplicate;
  },

  async excelCopySource(productCd?: string): Promise<BomCopySourceRow[]> {
    const res = await apiClient.get("/development/ebom/excel-copy-source", {
      params: productCd ? { productCd } : undefined,
    });
    return (res.data?.data as BomCopySourceRow[]) ?? [];
  },

  async excelCopy(objid: string): Promise<BomCsvRow[]> {
    const res = await apiClient.get(`/development/ebom/excel-copy/${objid}`);
    return ((res.data?.data?.rows as BomCsvRow[]) ?? []);
  },

  async excelSave(input: BomExcelSaveInput): Promise<BomExcelSaveResult> {
    const res = await apiClient.post("/development/ebom/excel-save", input);
    return res.data?.data as BomExcelSaveResult;
  },
};

// ─── CSV Import 타입 (wace parsingCsvFile 1:1) ─────────────

export interface BomCsvRow {
  NOTE: string;
  LEVEL: string;
  PARENT_PART_NO: string;
  PART_NO: string;
  PART_NAME: string;
  QTY: string;
  ITEM_QTY: string;
  MATERIAL: string;
  HEAT_TREATMENT_HARDNESS: string;
  HEAT_TREATMENT_METHOD: string;
  SURFACE_TREATMENT: string;
  MAKER: string;
  PART_TYPE: string;
  PART_TYPE_NAME: string;
  ACCTFG: string;
  ODRFG: string;
  UNIT_DC: string;
  UNITMANG_DC: string;
  UNITCHNG_NB: string;
  LOT_FG: string;
  USE_YN: string;
  QC_FG: string;
  SETITEM_FG: string;
  REQ_FG: string;
}

// 기존 코드 호환용 별칭 (필요 시 마이그레이션)
export type BomExcelRow = BomCsvRow;

export interface BomExcelParseResponse {
  rows: BomCsvRow[];
  hasError: boolean;
  firstLevel: { part_no: string; part_name: string } | null;
  encoding: string;
}

export interface BomCopySourceRow {
  objid: string;
  part_no: string;
  part_name: string;
  revision: string | null;
  product_cd: string | null;
  regdate: string | null;
}

export interface BomExcelSaveInput {
  bomReportObjid?: string;
  productCd: string;
  partNo: string;
  partName: string;
  version?: string;
  rows: BomCsvRow[];
}

export interface BomExcelSaveResult {
  bomReportObjid: string;
  insertedParts: number;
  updatedParts: number;
  bomRows: number;
  mode: "create" | "update";
}