import { describe, expect, it } from "vitest";
import {
  extractBlPlusFromMail,
  mapBlModulesToHeader,
  parseBlPlusTemplate,
  parseSpaceForecastTemplate,
  usesPlusFieldDelimiter,
} from "@/services/parse/bl-plus-template";
import {
  extractContainerHeaderFromText,
  shippingLineHintFromBl,
} from "@/services/parse/extract-container-header";

const SAMPLE =
  "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";

describe("parseBlPlusTemplate", () => {
  it("parses standard plus template modules", () => {
    const m = parseBlPlusTemplate(SAMPLE);
    expect(m).not.toBeNull();
    expect(m!.customer_name).toBe("新辰泽");
    expect(m!.bl_no).toBe("WHLC027G597465");
    expect(m!.shipping_line_hint).toBe("WHLC");
    expect(m!.container_no).toBe("WHSU8127240");
    expect(m!.port).toBe("洛杉矶");
    expect(m!.cabinet_type).toBe("40HQ");
    expect(m!.etd).toBe("2026-04-25");
    expect(m!.eta).toBe("2026-05-15");
    expect(m!.vessel_voyage).toContain("HMM EMERALD");
    expect(m!.service).toContain("提拆派");
    expect(m!.classis).toBe(0);
    expect(m!.ops_hints).toEqual(
      expect.arrayContaining(["提柜", "拆柜", "派送"]),
    );
  });

  it("maps modules onto SaveContainer-aligned header fields", () => {
    const m = parseBlPlusTemplate(SAMPLE)!;
    const header = mapBlModulesToHeader(
      { F_ContainerNo: "", container_no_valid: false },
      m,
    );
    expect(header.F_ContainerNo).toBe("WHSU8127240");
    expect(header.F_BLCopyCode).toBe("WHLC027G597465");
    expect(header.F_Dock).toBe("洛杉矶");
    expect(header.F_CabinetType).toBe("40HQ");
    expect(header.F_ETD).toBe("2026-04-25");
    expect(header.F_ETA).toBe("2026-05-15");
    expect(header.F_Classis).toBe(0);
    expect(header.F_OperationType).toBe(0);
    expect(header.F_TransMode).toBe(0);
    expect(header.F_Instruction).toMatch(/船名航次.*HMM EMERALD/);
    expect(header.F_MemoRemark).toBeUndefined();
  });

  it("extracts from subject + body like template mail", () => {
    const r = extractBlPlusFromMail(
      `新增预报136：${SAMPLE}`,
      `Dear,\n请查收新增预报：${SAMPLE}DO也同步上传至附件请注意查收！`,
    );
    expect(r).not.toBeNull();
    expect(r!.modules.container_no).toBe("WHSU8127240");
    expect(r!.modules.bl_no).toBe("WHLC027G597465");
    expect(r!.modules.shipping_line_hint).toBe("WHLC");
    expect(r!.modules.customer_name).toBe("新辰泽");
  });

  it("strips Fw/转发/新增预报N from subject customer segment", () => {
    const r = extractBlPlusFromMail(
      `Fw: 转发：新增预报136：${SAMPLE}`,
      "",
    );
    expect(r).not.toBeNull();
    expect(r!.modules.customer_name).toBe("新辰泽");
    expect(r!.modules.bl_no).toBe("WHLC027G597465");
    expect(r!.modules.shipping_line_hint).toBe("WHLC");
  });

  it("parses mail2 transfer subject (4 segments)", () => {
    const subject =
      "Fw: 转发：LINK EVER INC + MATS4583030000+ 柜号：MATU2745683+ ETA : 7/13";
    const r = extractBlPlusFromMail(subject, "新增转仓，请留意", {
      defaultYear: 2026,
    });
    expect(r).not.toBeNull();
    expect(r!.modules.customer_name).toBe("LINK EVER INC");
    expect(r!.modules.bl_no).toBe("MATS4583030000");
    expect(r!.modules.container_no).toBe("MATU2745683");
    expect(r!.modules.eta).toBe("2026-07-13");
    expect(r!.modules.port).toBeUndefined();
    expect(r!.modules.vessel_voyage).toBeUndefined();
  });

  it("parses space-separated ZJYC forecast without inventing port", () => {
    const subject = "Fw: Fw:回复：ZJYC COSU6504130784 FCIU7089474 7.10 派拆柜派送";
    const body = [
      "---- 回复的原邮件 ----",
      "主题ZJYC COSU6504130784 FCIU7089474 7.10 派拆柜派送",
      "",
      "FCIU7089474 提柜 COSCO 40HQ ETA：7.10 卡派拆柜派送",
    ].join("\n");
    const r = extractBlPlusFromMail(subject, body, { defaultYear: 2026 });
    expect(r).not.toBeNull();
    expect(r!.modules.customer_name).toBe("ZJYC");
    expect(r!.modules.bl_no).toBe("COSU6504130784");
    expect(r!.modules.container_no).toBe("FCIU7089474");
    expect(r!.modules.eta).toBe("2026-07-10");
    expect(r!.modules.cabinet_type).toBe("40HQ");
    expect(r!.modules.shipping_line_hint).toMatch(/COSCO|COSU/i);
    expect(r!.modules.port).toBeUndefined();
    const header = mapBlModulesToHeader(
      { F_ContainerNo: "", container_no_valid: false },
      r!.modules,
    );
    expect(header.F_ETA).toBe("2026-07-10");
    expect(header.F_Dock).toBe("");
    expect(header.F_MemoRemark).toBeUndefined();
  });

  it("does not treat subjectForParse join noise as destination port", () => {
    const subjectForParse =
      "Fw: Fw:回复: 回复: LINK EVER INC + ZIMUSHH32195411+  柜号：ZCSU6581068+  ETA : 7/7 | 回复: 回复: LINK EVER INC + ZIMUSHH32195411+  柜号：ZCSU6581068+  ETA : 7/7";
    const r = extractBlPlusFromMail(subjectForParse, "新增转仓，请留意", {
      defaultYear: 2026,
    });
    expect(r).not.toBeNull();
    expect(r!.modules.customer_name).toBe("LINK EVER INC");
    expect(r!.modules.container_no).toBe("ZCSU6581068");
    expect(r!.modules.bl_no).toBe("ZIMUSHH32195411");
    expect(r!.modules.eta).toBe("2026-07-07");
    expect(r!.modules.port).toBeUndefined();
    const header = mapBlModulesToHeader(
      {
        F_ContainerNo: "",
        container_no_valid: false,
        // 模拟库里残留的错误目的港
        F_Dock: "ETA : 7/7 | Fw: Fw:回复: 回复: LINK EVER INC",
      },
      r!.modules,
    );
    expect(header.F_Dock).toBe("");
    expect(header.F_ETA).toBe("2026-07-07");
  });

  it("parses labeled 柜号/提单号 template without fake customer", () => {
    const subject =
      "Fw: Fw:回复：柜号：TRHU8524770+提单号：EGLV143661466958+封号：EMCEJJ0635+YWZD+不带车架+整柜直送";
    const r = extractBlPlusFromMail(subject, "", { defaultYear: 2026 });
    expect(r).not.toBeNull();
    expect(r!.modules.container_no).toBe("TRHU8524770");
    expect(r!.modules.bl_no).toBe("EGLV143661466958");
    // 排除已知字段后仅剩 YWZD → 客户
    expect(r!.modules.customer_name).toBe("YWZD");
    expect(r!.modules.classis).toBe(0);
    expect(r!.modules.ops_hints).toEqual(expect.arrayContaining(["直送"]));
    expect(r!.modules.port).toBeUndefined();
    const header = mapBlModulesToHeader(
      { F_ContainerNo: "", container_no_valid: false },
      r!.modules,
    );
    expect(header.F_ContainerNo).toBe("TRHU8524770");
    expect(header.F_BLCopyCode).toBe("EGLV143661466958");
    expect(header.F_Dock).toBe("");
    expect(header.F_OperationType).toBe(2);
    expect(r!.modules.memo_bits).toEqual(["封号：EMCEJJ0635"]);
    expect(header.F_MemoRemark).toBe("封号：EMCEJJ0635");
    expect(header.F_MemoRemark).not.toMatch(/柜号|TRHU/);
    expect(header.F_MemoRemark).not.toMatch(/YWZD/);
  });

  it("does not guess customer when multiple leftovers remain", () => {
    const subject =
      "柜号：TRHU8524770+提单号：EGLV143661466958+封号：EMCEJJ0635+YWZD+ABCDE+不带车架+整柜直送";
    const r = extractBlPlusFromMail(subject, "", { defaultYear: 2026 });
    expect(r).not.toBeNull();
    expect(r!.modules.customer_name).toBeUndefined();
    expect(r!.modules.container_no).toBe("TRHU8524770");
    expect(r!.modules.bl_no).toBe("EGLV143661466958");
    expect(r!.modules.memo_bits).toEqual(
      expect.arrayContaining(["封号：EMCEJJ0635", "YWZD", "ABCDE"]),
    );
  });

  it("puts other unmatched labeled fields into memo, not customer", () => {
    const subject =
      "柜号：TRHU8524770+提单号：EGLV143661466958+预约码：ABC123+YWZD+不带车架+整柜直送";
    const r = extractBlPlusFromMail(subject, "", { defaultYear: 2026 });
    expect(r!.modules.customer_name).toBe("YWZD");
    expect(r!.modules.memo_bits).toEqual(["预约码：ABC123"]);
  });

  it("plus delimiter and space delimiter are mutually exclusive", () => {
    expect(
      usesPlusFieldDelimiter(
        "新辰泽+WHLC027G597465+WHSU8127240+洛杉矶+40HQ",
      ),
    ).toBe(true);
    expect(
      parseSpaceForecastTemplate(
        "新辰泽+WHLC027G597465+WHSU8127240+洛杉矶+40HQ",
        { defaultYear: 2026 },
      ),
    ).toBeNull();
    expect(
      usesPlusFieldDelimiter("ZJYC COSU6504130784 FCIU7089474 7.10 派拆柜派送"),
    ).toBe(false);
    const space = extractBlPlusFromMail(
      "ZJYC COSU6504130784 FCIU7089474 7.10 派拆柜派送",
      "FCIU7089474 提柜 COSCO 40HQ ETA：7.10 卡派拆柜派送",
      { defaultYear: 2026 },
    );
    expect(space?.modules.customer_name).toBe("ZJYC");
    expect(space?.modules.container_no).toBe("FCIU7089474");
  });

  it("does not parse ops work-order subject as customer+port forecast", () => {
    const subject =
      "Fw: Fw:贴标操作：派送指令：拍照指令：do请查收：TCNU4412465+ ONEYNB3BW9236300+船名航次：WAN HAI 511-V.E110+ETA:6/22+UPS-6件+亚马逊卡派-1275件+私人地址-30件+拆柜清单";
    const r = extractBlPlusFromMail(subject, "注意：派送要求", {
      defaultYear: 2026,
    });
    expect(r).toBeNull();
  });
});

describe("shipping line hint priority", () => {
  it("BL prefix WHLC beats vessel HMM", () => {
    expect(shippingLineHintFromBl("WHLC027G597465")).toBe("WHLC");
    const h = extractContainerHeaderFromText(SAMPLE);
    expect(h.shipping_line_hint).toBe("WHLC");
    expect(h.F_OperationType).toBe(0);
    expect(h.F_TransMode).toBe(0);
    expect(h.F_Classis).toBe(0);
  });

  it("提拆派 wins over 直送 when both present", () => {
    const h = extractContainerHeaderFromText("提拆派组合柜，说明：另有直送类型");
    expect(h.F_OperationType).toBe(0);
  });

  it("explicit 船司 still preferred over BL prefix", () => {
    const h = extractContainerHeaderFromText(
      "船司：MSC\n提单：WHLC027G597465\n柜型：40HQ",
    );
    expect(h.shipping_line_hint).toBe("MSC");
  });
});