import { describe, expect, it } from "vitest";
import { composeHandle, handleEndsWith, normalizeSuffix } from "../lib/handle.ts";

describe("handle helpers", () => {
  describe("normalizeSuffix", () => {
    it("adds a dot if missing", () => {
      expect(normalizeSuffix("margin.cafe")).toBe(".margin.cafe");
    });

    it("keeps existing dot", () => {
      expect(normalizeSuffix(".margin.cafe")).toBe(".margin.cafe");
    });

    it("handles empty input", () => {
      expect(normalizeSuffix("")).toBe("");
      expect(normalizeSuffix("   ")).toBe("");
    });

    it("trims whitespace", () => {
      expect(normalizeSuffix("  margin.cafe  ")).toBe(".margin.cafe");
      expect(normalizeSuffix("  .margin.cafe  ")).toBe(".margin.cafe");
    });
  });

  describe("composeHandle", () => {
    it("composes local handle and undotted suffix", () => {
      expect(composeHandle("alice", "margin.cafe")).toBe("alice.margin.cafe");
    });

    it("composes local handle and dotted suffix", () => {
      expect(composeHandle("alice", ".margin.cafe")).toBe("alice.margin.cafe");
    });

    it("returns handle as-is if it already contains a dot", () => {
      expect(composeHandle("alice.com", "margin.cafe")).toBe("alice.com");
      expect(composeHandle("alice.margin.cafe", ".margin.cafe")).toBe("alice.margin.cafe");
    });

    it("handles empty suffix", () => {
      expect(composeHandle("alice", "")).toBe("alice");
    });

    it("handles empty handle", () => {
      expect(composeHandle("", "margin.cafe")).toBe("");
    });
    
    it("trims handle and suffix", () => {
        expect(composeHandle(" alice ", " margin.cafe ")).toBe("alice.margin.cafe");
    });
  });

  describe("handleEndsWith", () => {
    it("returns true for matching undotted domain", () => {
      expect(handleEndsWith("alice.margin.cafe", "margin.cafe")).toBe(true);
    });

    it("returns true for matching dotted domain", () => {
      expect(handleEndsWith("alice.margin.cafe", ".margin.cafe")).toBe(true);
    });

    it("returns false if dot is missing in handle", () => {
      // "alicemargin.cafe" does not end with ".margin.cafe"
      expect(handleEndsWith("alicemargin.cafe", "margin.cafe")).toBe(false);
    });

    it("returns false for non-matching domain", () => {
      expect(handleEndsWith("alice.margin.cafe", "other.com")).toBe(false);
    });

    it("handles empty inputs", () => {
      expect(handleEndsWith("", "margin.cafe")).toBe(false);
      expect(handleEndsWith("alice.margin.cafe", "")).toBe(false);
    });
  });
});