import { describe, expect, it } from "vitest";
import { decidePull, hasActiveFilterConfig } from "@/services/imap/pull-filter";

describe("decidePull", () => {
  it("empty rules → business fallback for 新增预报", () => {
    const d = decidePull({
      fromAddr: "a@x.com",
      subject: "新增预报 MATU2745683",
      body: "请查收",
      filenames: ["卡派.xlsx"],
      rules: [],
    });
    expect(d).toEqual({ pull: true, reason: "BUSINESS_FALLBACK" });
  });

  it("empty rules → skip unrelated", () => {
    const d = decidePull({
      fromAddr: "noreply@github.com",
      subject: "Your security digest",
      body: "hello",
      filenames: [],
      rules: [],
    });
    expect(d.pull).toBe(false);
    expect(d.reason).toBe("SKIP_FILTER");
  });

  it("sender blacklist wins", () => {
    const d = decidePull({
      fromAddr: "spam@x.com",
      subject: "新增预报",
      body: "",
      rules: [
        { kind: "sender_blacklist", value: "spam@x.com", enabled: true },
        { kind: "keyword", value: "新增预报", enabled: true },
      ],
    });
    expect(d).toEqual({ pull: false, reason: "SKIP_BLACKLIST" });
  });

  it("keyword blacklist wins over whitelist? no — blacklist first then whitelist", () => {
    const d = decidePull({
      fromAddr: "vip@x.com",
      subject: "广告促销",
      body: "广告",
      rules: [
        { kind: "keyword_blacklist", value: "广告", enabled: true },
        { kind: "sender_whitelist", value: "vip@x.com", enabled: true },
      ],
    });
    expect(d).toEqual({ pull: false, reason: "SKIP_BLACKLIST" });
  });

  it("whitelist pulls without keyword", () => {
    const d = decidePull({
      fromAddr: "vip@Partner.COM",
      subject: "hello",
      body: "world",
      rules: [
        { kind: "sender_whitelist", value: "vip@partner.com", enabled: true },
        { kind: "keyword", value: "预报", enabled: true },
      ],
    });
    expect(d).toEqual({ pull: true, reason: "WHITELIST" });
  });

  it("keyword match when configured", () => {
    const d = decidePull({
      fromAddr: "other@x.com",
      subject: "关于卡派资料",
      body: "",
      rules: [{ kind: "keyword", value: "卡派", enabled: true }],
    });
    expect(d).toEqual({ pull: true, reason: "KEYWORD" });
  });

  it("configured but no match → SKIP_FILTER (no business fallback)", () => {
    const d = decidePull({
      fromAddr: "other@x.com",
      subject: "新增预报 MATU2745683",
      body: "请查收卡派",
      filenames: ["卡派.xlsx"],
      rules: [{ kind: "keyword", value: "只有这个才拉", enabled: true }],
    });
    expect(d).toEqual({ pull: false, reason: "SKIP_FILTER" });
  });

  it("hasActiveFilterConfig ignores disabled", () => {
    expect(
      hasActiveFilterConfig([
        { kind: "keyword", value: "x", enabled: false },
      ]),
    ).toBe(false);
  });
});