import { describe, expect, it } from "vitest";
import {
  canEnterForecastConfirm,
  collectForecastImportIssues,
} from "@/services/cc/forecast-confirm-gate";

describe("canEnterForecastConfirm", () => {
  it("allows forecast data regardless of mail main type", () => {
    expect(
      canEnterForecastConfirm({
        status: "PENDING_CONFIRM",
        validShipmentCount: 1,
      }),
    ).toBe(true);
  });

  it("blocks empty forecast without container header", () => {
    expect(
      canEnterForecastConfirm({
        status: "PENDING_CONFIRM",
        validShipmentCount: 0,
      }),
    ).toBe(false);
  });

  it("allows header-only forecast (no shipment rows)", () => {
    expect(
      canEnterForecastConfirm({
        status: "PENDING_CONFIRM",
        validShipmentCount: 0,
        hasContainerHeader: true,
      }),
    ).toBe(true);
  });

  it("allows PARTIAL_SUCCESS so remaining instructions stay confirmable", () => {
    expect(
      canEnterForecastConfirm({
        status: "PARTIAL_SUCCESS",
        validShipmentCount: 1,
      }),
    ).toBe(true);
  });
});

describe("collectForecastImportIssues", () => {
  const base = {
    transMode: 0 as const,
    operationType: 0 as const,
    containerNo: "TRHU8524770",
    hasContainerConflict: false,
    containerSource: null as "body" | "attachment" | null,
    validRowCount: 1,
    selectedValidCount: 1,
    hasUnmappedSelected: false,
    ackUnmapped: false,
  };

  it("does not block header-only import when no valid rows", () => {
    const issues = collectForecastImportIssues({
      ...base,
      validRowCount: 0,
      selectedValidCount: 0,
      shipmentCount: 0,
    });
    expect(issues.blockers).toEqual([]);
    expect(issues.notes.some((n) => n.includes("只提交柜头"))).toBe(true);
  });

  it("blocks when valid rows exist but none selected", () => {
    const issues = collectForecastImportIssues({
      ...base,
      selectedValidCount: 0,
    });
    expect(issues.blockers[0]).toContain("至少勾选一行有效货件");
    expect(issues.errors.rows).toBeTruthy();
  });

  it("explains empty and invalid container numbers", () => {
    expect(
      collectForecastImportIssues({ ...base, containerNo: "" }).blockers[0],
    ).toContain("柜号为空");
    expect(
      collectForecastImportIssues({ ...base, containerNo: "ABCD1234567" })
        .blockers[0],
    ).toContain("ISO 6346");
  });

  it("summarizes invalid packing rows without blocking header-only", () => {
    const issues = collectForecastImportIssues({
      ...base,
      validRowCount: 0,
      selectedValidCount: 0,
      invalidRows: [
        { row_index: 1, invalid_reasons: ["渠道缺失", "件数无效"] },
        { row_index: 2, invalid_reasons: ["渠道缺失"] },
      ],
    });
    expect(issues.blockers).toEqual([]);
    expect(issues.notes[0]).toContain("渠道缺失（2行）");
    expect(issues.notes[0]).toContain("件数无效");
  });

  it("does not block client portal on the first tab", () => {
    const issues = collectForecastImportIssues({
      ...base,
      portal: "client",
      step: 0,
    });
    expect(issues.blockers).toEqual([]);
  });
});