import { describe, expect, it } from "vitest";
import {
  extractBlPlusFromMail,
  mapBlModulesToHeader,
  parseBlPlusTemplate,
} 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).toContain("新辰泽");
  });

  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");
    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.vessel_voyage).toBeUndefined();
  });
});

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");
  });
});