import { describe, expect, it } from "vitest";
import {
  detectUiKindsFromText,
  extractForecastInstructionText,
  extractMailInstructions,
  splitBodySegments,
} from "@/services/parse/split-instructions";
import { evaluateTransferGate } from "@/services/cc/container-status";
import { buildCcWorkOrderFormValue } from "@/components/CcWorkOrderForm";
import { buildCcDoUploadFormValue } from "@/components/CcDoUploadPanel";

const MAIL4_SUBJECT =
  "Fw: 转发：新增预报136：新辰泽+WHLC027G597465+WHSU8127240+洛杉矶+40HQ+EDT2026.04-25 ETA2026.05-15船名航次HMM EMERALD 013E+提拆派组合柜-不带托架";

const MAIL4_BODY = [
  "Dear,",
  "原箱号YT2604021091=FBA199R49LD6-MDW2=76件操作指令",
  "换标后单号：FBA19HW52S0L-2G1MCB6X-HIA1=76件",
  "1：覆盖贴FBA标签，一箱贴两张",
  "3：贴好拍照回传",
].join("\n");

describe("four-business extractMailInstructions", () => {
  it("mail4: forecast + work_order + maybe do", () => {
    const units = extractMailInstructions({
      subject: MAIL4_SUBJECT,
      body: MAIL4_BODY,
      filenames: ["YT2604021091=76件换标走HIA1卡派出库操作指令.xlsx"],
    });
    const kinds = units.map((u) => u.uiKind);
    expect(kinds).toContain("forecast");
    expect(kinds).toContain("work_order");
  });

  it("transfer-only body → transfer", () => {
    const units = extractMailInstructions({
      subject: "MATU2745683",
      body: "新增转仓，请留意",
      filenames: [],
    });
    expect(units.some((u) => u.uiKind === "transfer")).toBe(true);
  });

  it("DO filename → do_upload", () => {
    expect(
      detectUiKindsFromText("WHSU5574991", "", ["柜DO.pdf"]),
    ).toContain("do_upload");
  });
});

describe("extractForecastInstructionText P4", () => {
  it("does not use 换标 body as forecast instruction", () => {
    const text = extractForecastInstructionText({
      subject: MAIL4_SUBJECT,
      body: MAIL4_BODY,
    });
    expect(text).not.toMatch(/覆盖贴/);
    expect(text).toMatch(/船名航次|HMM|EMERALD|/);
  });
});

describe("splitBodySegments", () => {
  it("splits on quote header", () => {
    const segs = splitBodySegments(
      "当前换标\n------------------ 原始电子邮件 ------------------\n主题：新增预报\n历史",
    );
    expect(segs.length).toBeGreaterThanOrEqual(2);
  });
});

describe("buildCcWorkOrderFormValue", () => {
  it("mail actions stay in tags; 贴标映射 CC 留言类型「操作指令」", () => {
    const v = buildCcWorkOrderFormValue({
      subject: "操作",
      body: "请贴标并拍照",
      containerNo: "WHSU8127240",
    });
    expect(v.F_MessageType).toBe("操作指令");
    expect(v.F_MessageType).not.toBe("贴标");
    expect(v.mailActions).toEqual(expect.arrayContaining(["贴标", "拍照"]));
    expect(v.F_Remark).toContain("邮件动作：");
    expect(v.F_ReferCode).toBe("WHSU8127240");
  });

  it("拦截 → CC 留言类型「货件拦截」", () => {
    const v = buildCcWorkOrderFormValue({
      subject: "请拦截",
      body: "柜号 WHSU8127240 拦截货件",
    });
    expect(v.F_MessageType).toBe("货件拦截");
    expect(v.mailActions).toContain("拦截");
  });

  it("mail3 渠道拦截-N件 → 备注为拆柜清单而非拦截", () => {
    const subject =
      "Fw: 转发：派送要求更新: 拆柜清单更新： DO请查收+拆柜清单更新: WHSU5574991+WHL063G550810+船名航次：OOCL SINGAPORE / 065W+ETA：6/28+FedEx-29件+UPS-102件+亚马逊卡派-289件+私人地址-166件+拦截-209件+拆柜清单";
    const v = buildCcWorkOrderFormValue({
      subject,
      body: "派送要求更新，请查收 DO 与拆柜清单。",
      containerNo: "WHSU5574991",
      actions: [],
    });
    expect(v.F_Remark).toContain("邮件动作：拆柜清单");
    expect(v.F_Remark).not.toContain("拦截");
    expect(v.F_MessageType).not.toBe("货件拦截");
    expect(v.mailActions).toContain("拆柜清单");
    expect(v.mailActions).not.toContain("拦截");
  });

  it("mail85 76件换标挂对应附件；833件历史轮不误挂", () => {
    const files = [
      "YT2604021091=76件换标走HIA1卡派出库操作指令.xlsx",
      "FBA19HW52S0L-76CTN-HIA1-覆盖贴1箱贴2张.pdf",
      "X003UHDF7B-304PCS-覆盖贴1箱贴1张.pdf",
    ];
    const current = buildCcWorkOrderFormValue({
      subject: "Re:新增预报136",
      body: [
        "Dear,",
        "原箱号 YT2604021091=FBA199R49LD6-MDW2=76 件操作指令",
        "换标后单号： FBA19HW52S0L-2G1MCB6X-HIA1=76 件",
        "1：覆盖贴FBA 标签，一箱贴两张",
        "2：覆盖贴SKU 标签，一箱 1 张（ FNSKU ： X003UHDF7B （ 304PCS ））",
      ].join("\n"),
      filenames: files,
      containerNo: "WHSU8127240",
    });
    expect(current.F_AttachFile).toContain("YT2604021091");
    expect(current.F_AttachFile).toContain("FBA19HW52S0L");
    expect(current.F_AttachFile).toContain("X003UHDF7B");

    const hist833 = buildCcWorkOrderFormValue({
      subject: "Fw: 新增预报136",
      body: [
        "Dear,",
        "WHSU8127240= 原箱号 YT2604021486- 剩余 540 件",
        "两个柜子共计 833 件操作指令",
        "换标后单号：FBA19DS6CXV4-2G1XD81L-LGB8=87 件",
      ].join("\n"),
      filenames: files,
      containerNo: "WHSU8127240",
      isCurrent: false,
    });
    expect(hist833.F_AttachFile).toBe("");
  });

  it("strips forward headers; keeps Dear instruction as F_MessageContent", () => {
    const v = buildCcWorkOrderFormValue({
      subject: "Fw: 新增预报136",
      body: [
        "---- 转发的邮件 ----",
        "发件人新辰泽",
        "主题 Re:Re:新增预报136",
        "Dear,",
        "原箱号 YT2604021091=FBA199R49LD6-MDW2=76 件操作指令",
        "1：覆盖贴FBA标签，一箱贴两张",
        "3：贴好拍照回传",
      ].join("\n"),
      containerNo: "WHSU8127240",
    });
    expect(v.F_MessageContent).toMatch(/^Dear,/);
    expect(v.F_MessageContent).toContain("覆盖贴");
    expect(v.F_MessageContent).not.toContain("转发的邮件");
    expect(v.mailActions).toEqual(expect.arrayContaining(["贴标", "拍照"]));
  });
});

describe("buildCcDoUploadFormValue", () => {
  it("keeps DO pdf filenames", () => {
    const v = buildCcDoUploadFormValue({
      subject: "DO请查收 WHSU5574991",
      filenames: ["WHSU5574991-DO.pdf", "其他.xlsx"],
    });
    expect(v.filenames.some((f) => /DO/i.test(f))).toBe(true);
  });
});

describe("evaluateTransferGate mock", () => {
  it("ARRIVED container → work_order fallback", async () => {
    const g = await evaluateTransferGate("ARRIVED1234567");
    expect(g.canTransfer).toBe(false);
    if (!g.canTransfer) expect(g.fallback).toBe("work_order");
  });

  it("normal container → can transfer in mock", async () => {
    const g = await evaluateTransferGate("WHSU8127240");
    // depends on CC_MOCK; if live empty list may fallback
    expect(typeof g.canTransfer).toBe("boolean");
  });
});